All airlines flying from Atlanta (ATL) to Seattle-Tacoma (SEA).

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 21:35 Atlanta (ATL) S 00:11 Seattle-Tacoma (SEA)
WestJet WS 6799 Non-stop Boeing 737-900 (739) 5:36 Effective 2025-09-26 through 2025-11-05
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Daily 21:35 Atlanta (ATL) S 00:14 Seattle-Tacoma (SEA)
WestJet WS 6799 Non-stop Airbus A321neo (32Q) 5:39 Effective 2025-11-06 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Daily 09:40 Atlanta (ATL) S 12:10 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Boeing 757-300 (753) 5:30 Effective 2025-06-08 through 2025-07-06
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 09:40 Atlanta (ATL) S 12:14 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Boeing 757-300 (753) 5:34 Effective 2025-08-11 through 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 09:40 Atlanta (ATL) S 12:24 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Boeing 757-300 (753) 5:44 Effective 2025-09-08 through 2025-11-05
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 09:40 Atlanta (ATL) S 12:23 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Boeing 737-900 (739) 5:43 Effective 2025-11-06 through 2025-11-30
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 09:40 Atlanta (ATL) S 12:25 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Airbus A321neo (32Q) 5:45 Effective 2025-12-01 through 2025-12-19
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 09:40 Atlanta (ATL) S 12:24 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Boeing 757 (757) 5:44 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 09:40 Atlanta (ATL) S 12:29 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Airbus A321neo (32Q) 5:49 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 09:45 Atlanta (ATL) S 12:26 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Airbus A321neo (32Q) 5:41 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 09:54 Atlanta (ATL) S 12:22 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Boeing 737-900 (739) 5:28 Effective 2025-05-07 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 774)
Daily 11:00 Atlanta (ATL) S 13:34 Seattle-Tacoma (SEA)
WestJet WS 6839 Non-stop Boeing 757-300 (753) 5:34 Effective 2025-07-07 through 2025-08-10
Codeshare flight, operated by Delta Air Lines.(DL 648)
Sun 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 6995 Non-stop Boeing 737-900 (739) 5:33 Operates only on 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Thu 21:35 Atlanta (ATL) S 00:11 Seattle-Tacoma (SEA)
WestJet WS 7031 Non-stop Boeing 737-900 (739) 5:36 Effective 2025-09-11 through 2025-09-25
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Daily 15:10 Atlanta (ATL) S 17:50 Seattle-Tacoma (SEA)
KLM KL 7402 Non-stop Airbus A321neo (32Q) 5:40 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 481)
Tue,Thu 18:01 Atlanta (ATL) S 20:40 Seattle-Tacoma (SEA)
KLM KL 7402 Non-stop Boeing 737-900 (739) 5:39 Effective 2025-12-23 through 2026-01-01
Codeshare flight, operated by Delta Air Lines.(DL 675)
Tue,Thu,Sat 19:43 Atlanta (ATL) S 22:25 Seattle-Tacoma (SEA)
KLM KL 7402 Non-stop Boeing 757-300 (753) 5:42 Effective 2025-10-28 through 2025-11-01
Codeshare flight, operated by Delta Air Lines.(DL 623)
Daily 07:45 Atlanta (ATL) S 10:26 Seattle-Tacoma (SEA)
WestJet WS 7449 Non-stop Boeing 737-900 (739) 5:41 Effective 2025-10-26 through 2025-12-19
Codeshare flight, operated by Delta Air Lines.(DL 444)
Daily 07:45 Atlanta (ATL) S 10:29 Seattle-Tacoma (SEA)
WestJet WS 7449 Non-stop Boeing 737-900 (739) 5:44 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 444)
Daily 07:50 Atlanta (ATL) S 10:34 Seattle-Tacoma (SEA)
WestJet WS 7449 Non-stop Airbus A321neo (32Q) 5:44 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 444)
Daily 09:40 Atlanta (ATL) S 12:14 Seattle-Tacoma (SEA)
WestJet WS 7449 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-07-07 through 2025-08-03
Codeshare flight, operated by Delta Air Lines.(DL 774)
Sun 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 7538 Non-stop Boeing 737-900 (739) 5:33 Effective 2025-08-17 through 2025-08-24
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Daily 14:00 Atlanta (ATL) S 16:25 Seattle-Tacoma (SEA)
WestJet WS 7559 Non-stop Boeing 737-900 (739) 5:25 Effective 2025-07-07 through 2025-08-30
Codeshare flight, operated by Delta Air Lines.(DL 481)
Fri 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 7857 Non-stop Boeing 737-900 (739) 5:33 Operates only on 2025-09-05
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Thu 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8155 Non-stop Boeing 737-900 (739) 5:33 Operates only on 2025-09-04
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Sat 16:59 Atlanta (ATL) S 19:29 Seattle-Tacoma (SEA)
LATAM Airlines LA 8437 Non-stop Boeing 757-300 (753) 5:30 Effective 2025-07-12 through 2025-08-09
Codeshare flight, operated by Delta Air Lines.(DL 472)
Sat 16:59 Atlanta (ATL) S 19:29 Seattle-Tacoma (SEA)
LATAM Airlines LA 8437 Non-stop Boeing 737-900 (739) 5:30 Effective 2025-08-16 through 2025-09-06
Codeshare flight, operated by Delta Air Lines.(DL 472)
Sat 16:59 Atlanta (ATL) S 19:36 Seattle-Tacoma (SEA)
LATAM Airlines LA 8437 Non-stop Boeing 737-900 (739) 5:37 Effective 2025-09-13 through 2025-10-04
Codeshare flight, operated by Delta Air Lines.(DL 472)
Mon 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8450 Non-stop Boeing 737-900 (739) 5:33 Effective 2025-08-11 through 2025-09-01
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Sat 19:33 Atlanta (ATL) S 22:00 Seattle-Tacoma (SEA)
LATAM Airlines LA 8483 Non-stop Boeing 737-900 (739) 5:27 Effective 2025-05-08 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 2116)
Thu,Fri 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8493 Non-stop Boeing 737-900 (739) 5:33 Effective 2025-08-14 through 2025-08-29
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Fri 21:35 Atlanta (ATL) S 00:11 Seattle-Tacoma (SEA)
WestJet WS 8493 Non-stop Boeing 737-900 (739) 5:36 Effective 2025-09-12 through 2025-09-19
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Sun 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8546 Non-stop Boeing 737-900 (739) 5:33 Effective 2025-08-03 through 2025-08-10
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Sun 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8562 Non-stop Boeing 737-900 (739) 5:33 Operates only on 2025-07-27
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Sun 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8572 Non-stop Boeing 737-900 (739) 5:33 Effective 2025-07-13 through 2025-07-20
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Mon,Fri 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8609 Non-stop Boeing 737-900 (739) 5:33 Effective 2025-08-04 through 2025-08-08
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Mon 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8657 Non-stop Boeing 737-900 (739) 5:33 Effective 2025-07-07 through 2025-07-21
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Daily 16:22 Atlanta (ATL) S 18:47 Seattle-Tacoma (SEA)
WestJet WS 8701 Non-stop Boeing 737-900 (739) 5:25 Effective 2025-05-07 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 472)
Daily 16:25 Atlanta (ATL) S 18:48 Seattle-Tacoma (SEA)
WestJet WS 8701 Non-stop Boeing 757-300 (753) 5:23 Effective 2025-06-08 through 2025-07-06
Codeshare flight, operated by Delta Air Lines.(DL 472)
Daily 16:55 Atlanta (ATL) S 19:34 Seattle-Tacoma (SEA)
WestJet WS 8701 Non-stop Boeing 737-900 (739) 5:39 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 472)
Daily 16:59 Atlanta (ATL) S 19:29 Seattle-Tacoma (SEA)
WestJet WS 8701 Non-stop Boeing 757-300 (753) 5:30 Effective 2025-07-07 through 2025-08-10
Codeshare flight, operated by Delta Air Lines.(DL 472)
Daily 16:59 Atlanta (ATL) S 19:29 Seattle-Tacoma (SEA)
WestJet WS 8701 Non-stop Boeing 737-900 (739) 5:30 Effective 2025-08-11 through 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 472)
Daily 16:59 Atlanta (ATL) S 19:36 Seattle-Tacoma (SEA)
WestJet WS 8701 Non-stop Boeing 737-900 (739) 5:37 Effective 2025-09-08 through 2025-10-05
Codeshare flight, operated by Delta Air Lines.(DL 472)
Mon 21:35 Atlanta (ATL) S 00:08 Seattle-Tacoma (SEA)
WestJet WS 8709 Non-stop Boeing 737-900 (739) 5:33 Operates only on 2025-07-28
Codeshare flight, operated by Delta Air Lines.(DL 903)
The flight arrives 1 day after departure.
Mon,Tue,Thu,Fri,Sun 14:25 Atlanta (ATL) S 16:57 Seattle-Tacoma (SEA)
WestJet WS 8760 Non-stop Boeing 737-900 (739) 5:32 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 481)
Tue,Fri 07:40 Atlanta (ATL) S 10:04 Seattle-Tacoma (SEA)
LATAM Airlines LA 8763 Non-stop Boeing 737-900 (739) 5:24 Effective 2025-05-09 through 2025-06-06
Codeshare flight, operated by Delta Air Lines.(DL 444)
Daily 07:45 Atlanta (ATL) S 10:22 Seattle-Tacoma (SEA)
LATAM Airlines LA 8763 Non-stop Boeing 737-900 (739) 5:37 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 444)
Mon,Wed,Thu,Sat,Sun 07:45 Atlanta (ATL) S 10:09 Seattle-Tacoma (SEA)
LATAM Airlines LA 8763 Non-stop Boeing 737-900 (739) 5:24 Effective 2025-05-07 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 444)
Daily 07:45 Atlanta (ATL) S 10:12 Seattle-Tacoma (SEA)
LATAM Airlines LA 8763 Non-stop Boeing 737-900 (739) 5:27 Effective 2025-07-07 through 2025-08-10
Codeshare flight, operated by Delta Air Lines.(DL 444)
Daily 07:45 Atlanta (ATL) S 10:19 Seattle-Tacoma (SEA)
LATAM Airlines LA 8763 Non-stop Boeing 737-900 (739) 5:34 Effective 2025-08-11 through 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 444)
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All airlines flying from Atlanta (ATL) to Seattle-Tacoma (SEA).
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
WestJet WS6799
21:35
Atlanta (ATL) S

00:11(+1)
Seattle-Tacoma (SEA)
Effective 2025-09-26 through 2025-11-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:36, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS6799
21:35
Atlanta (ATL) S

00:14(+1)
Seattle-Tacoma (SEA)
Effective 2025-11-06 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:39, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
WestJet WS6839
09:40
Atlanta (ATL) S

12:10
Seattle-Tacoma (SEA)
Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:30, non-stop
Boeing 757-300 (753)
WestJet WS6839
09:40
Atlanta (ATL) S

12:14
Seattle-Tacoma (SEA)
Effective 2025-08-11 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:34, non-stop
Boeing 757-300 (753)
WestJet WS6839
09:40
Atlanta (ATL) S

12:24
Seattle-Tacoma (SEA)
Effective 2025-09-08 through 2025-11-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:44, non-stop
Boeing 757-300 (753)
WestJet WS6839
09:40
Atlanta (ATL) S

12:23
Seattle-Tacoma (SEA)
Effective 2025-11-06 through 2025-11-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:43, non-stop
Boeing 737-900 (739)
WestJet WS6839
09:40
Atlanta (ATL) S

12:25
Seattle-Tacoma (SEA)
Effective 2025-12-01 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:45, non-stop
Airbus A321neo (32Q)
WestJet WS6839
09:40
Atlanta (ATL) S

12:24
Seattle-Tacoma (SEA)
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:44, non-stop
Boeing 757 (757)
WestJet WS6839
09:40
Atlanta (ATL) S

12:29
Seattle-Tacoma (SEA)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:49, non-stop
Airbus A321neo (32Q)
WestJet WS6839
09:45
Atlanta (ATL) S

12:26
Seattle-Tacoma (SEA)
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:41, non-stop
Airbus A321neo (32Q)
WestJet WS6839
09:54
Atlanta (ATL) S

12:22
Seattle-Tacoma (SEA)
Effective 2025-05-07 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:28, non-stop
Boeing 737-900 (739)
WestJet WS6839
11:00
Atlanta (ATL) S

13:34
Seattle-Tacoma (SEA)
Effective 2025-07-07 through 2025-08-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 648)
Duration: 5:34, non-stop
Boeing 757-300 (753)
WestJet WS6995
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Operates only on 2025-09-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS7031
21:35
Atlanta (ATL) S

00:11(+1)
Seattle-Tacoma (SEA)
Effective 2025-09-11 through 2025-09-25
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:36, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
KLM KL7402
15:10
Atlanta (ATL) S

17:50
Seattle-Tacoma (SEA)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 481)
Duration: 5:40, non-stop
Airbus A321neo (32Q)
KLM KL7402
18:01
Atlanta (ATL) S

20:40
Seattle-Tacoma (SEA)
Effective 2025-12-23 through 2026-01-01
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 675)
Duration: 5:39, non-stop
Boeing 737-900 (739)
KLM KL7402
19:43
Atlanta (ATL) S

22:25
Seattle-Tacoma (SEA)
Effective 2025-10-28 through 2025-11-01
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 623)
Duration: 5:42, non-stop
Boeing 757-300 (753)
WestJet WS7449
07:45
Atlanta (ATL) S

10:26
Seattle-Tacoma (SEA)
Effective 2025-10-26 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 444)
Duration: 5:41, non-stop
Boeing 737-900 (739)
WestJet WS7449
07:45
Atlanta (ATL) S

10:29
Seattle-Tacoma (SEA)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 444)
Duration: 5:44, non-stop
Boeing 737-900 (739)
WestJet WS7449
07:50
Atlanta (ATL) S

10:34
Seattle-Tacoma (SEA)
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 444)
Duration: 5:44, non-stop
Airbus A321neo (32Q)
WestJet WS7449
09:40
Atlanta (ATL) S

12:14
Seattle-Tacoma (SEA)
Effective 2025-07-07 through 2025-08-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 774)
Duration: 5:34, non-stop
Airbus A321neo (32Q)
WestJet WS7538
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Effective 2025-08-17 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS7559
14:00
Atlanta (ATL) S

16:25
Seattle-Tacoma (SEA)
Effective 2025-07-07 through 2025-08-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 481)
Duration: 5:25, non-stop
Boeing 737-900 (739)
WestJet WS7857
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Operates only on 2025-09-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8155
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Operates only on 2025-09-04
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
LATAM Airlines LA8437
16:59
Atlanta (ATL) S

19:29
Seattle-Tacoma (SEA)
Effective 2025-07-12 through 2025-08-09
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:30, non-stop
Boeing 757-300 (753)
LATAM Airlines LA8437
16:59
Atlanta (ATL) S

19:29
Seattle-Tacoma (SEA)
Effective 2025-08-16 through 2025-09-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:30, non-stop
Boeing 737-900 (739)
LATAM Airlines LA8437
16:59
Atlanta (ATL) S

19:36
Seattle-Tacoma (SEA)
Effective 2025-09-13 through 2025-10-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:37, non-stop
Boeing 737-900 (739)
WestJet WS8450
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Effective 2025-08-11 through 2025-09-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
LATAM Airlines LA8483
19:33
Atlanta (ATL) S

22:00
Seattle-Tacoma (SEA)
Effective 2025-05-08 through 2025-06-07
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2116)
Duration: 5:27, non-stop
Boeing 737-900 (739)
WestJet WS8493
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Effective 2025-08-14 through 2025-08-29
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8493
21:35
Atlanta (ATL) S

00:11(+1)
Seattle-Tacoma (SEA)
Effective 2025-09-12 through 2025-09-19
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:36, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8546
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Effective 2025-08-03 through 2025-08-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8562
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Operates only on 2025-07-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8572
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Effective 2025-07-13 through 2025-07-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8609
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Effective 2025-08-04 through 2025-08-08
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8657
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Effective 2025-07-07 through 2025-07-21
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8701
16:22
Atlanta (ATL) S

18:47
Seattle-Tacoma (SEA)
Effective 2025-05-07 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:25, non-stop
Boeing 737-900 (739)
WestJet WS8701
16:25
Atlanta (ATL) S

18:48
Seattle-Tacoma (SEA)
Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:23, non-stop
Boeing 757-300 (753)
WestJet WS8701
16:55
Atlanta (ATL) S

19:34
Seattle-Tacoma (SEA)
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:39, non-stop
Boeing 737-900 (739)
WestJet WS8701
16:59
Atlanta (ATL) S

19:29
Seattle-Tacoma (SEA)
Effective 2025-07-07 through 2025-08-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:30, non-stop
Boeing 757-300 (753)
WestJet WS8701
16:59
Atlanta (ATL) S

19:29
Seattle-Tacoma (SEA)
Effective 2025-08-11 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:30, non-stop
Boeing 737-900 (739)
WestJet WS8701
16:59
Atlanta (ATL) S

19:36
Seattle-Tacoma (SEA)
Effective 2025-09-08 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 472)
Duration: 5:37, non-stop
Boeing 737-900 (739)
WestJet WS8709
21:35
Atlanta (ATL) S

00:08(+1)
Seattle-Tacoma (SEA)
Operates only on 2025-07-28
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 903)
Duration: 5:33, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
WestJet WS8760
14:25
Atlanta (ATL) S

16:57
Seattle-Tacoma (SEA)
Valid until 2025-05-06
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 481)
Duration: 5:32, non-stop
Boeing 737-900 (739)
LATAM Airlines LA8763
07:40
Atlanta (ATL) S

10:04
Seattle-Tacoma (SEA)
Effective 2025-05-09 through 2025-06-06
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 444)
Duration: 5:24, non-stop
Boeing 737-900 (739)
LATAM Airlines LA8763
07:45
Atlanta (ATL) S

10:22
Seattle-Tacoma (SEA)
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 444)
Duration: 5:37, non-stop
Boeing 737-900 (739)
LATAM Airlines LA8763
07:45
Atlanta (ATL) S

10:09
Seattle-Tacoma (SEA)
Effective 2025-05-07 through 2025-06-07
Mon
Tue
-
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 444)
Duration: 5:24, non-stop
Boeing 737-900 (739)
LATAM Airlines LA8763
07:45
Atlanta (ATL) S

10:12
Seattle-Tacoma (SEA)
Effective 2025-07-07 through 2025-08-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 444)
Duration: 5:27, non-stop
Boeing 737-900 (739)
LATAM Airlines LA8763
07:45
Atlanta (ATL) S

10:19
Seattle-Tacoma (SEA)
Effective 2025-08-11 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 444)
Duration: 5:34, non-stop
Boeing 737-900 (739)
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  • A domestic route departing from the Atlanta airport (ATL) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 2177 miles, or 3503 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 5:15 and 5:49.
Return (SEA-ATL) flights
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