All airlines flying from Dulles, Washington (IAD) to Seattle-Tacoma (SEA).
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| FLIGHT SCHEDULE |
|---|
| Direct Codeshare Flights: |
| Daily
10:00
Dulles, Washington (IAD)
12:45
Seattle-Tacoma (SEA) Air Tahiti Nui TN 2722 Non-stop Boeing 737 (73J) 5:45 Effective 2025-10-04 through 2025-11-20 Codeshare flight, operated by Alaska Airlines.(AS 375) |
| Daily
17:26
Dulles, Washington (IAD)
20:18
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737 MAX 9 (7M9) 5:52 Valid until 2025-05-21 Codeshare flight, operated by United Airlines.(UA 1998) |
| Daily
17:35
Dulles, Washington (IAD)
20:10
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737-900 (739) 5:35 Effective from 2025-10-26 Codeshare flight, operated by United Airlines.(UA 326) |
| Mon-Fri,Sun
17:48
Dulles, Washington (IAD)
20:41
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737 MAX 9 (7M9) 5:53 Effective 2025-05-22 through 2025-06-24 Codeshare flight, operated by United Airlines.(UA 326) |
| Sat
17:48
Dulles, Washington (IAD)
20:41
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737-900 (739) 5:53 Effective 2025-05-24 through 2025-06-21 Codeshare flight, operated by United Airlines.(UA 326) |
| Wed
17:48
Dulles, Washington (IAD)
20:41
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737-700 (73G) 5:53 Operates only on 2025-06-25 Codeshare flight, operated by United Airlines.(UA 326) |
| Mon-Fri,Sun
17:55
Dulles, Washington (IAD)
20:48
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737 MAX 9 (7M9) 5:53 Effective 2025-06-26 through 2025-07-03 Codeshare flight, operated by United Airlines.(UA 326) |
| Fri,Sat
17:55
Dulles, Washington (IAD)
20:48
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737-900 (739) 5:53 Effective 2025-06-28 through 2025-07-05 Codeshare flight, operated by United Airlines.(UA 326) |
| Mon-Fri,Sun
17:55
Dulles, Washington (IAD)
20:48
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737 MAX 9 (7M9) 5:53 Effective 2025-07-06 through 2025-08-18 Codeshare flight, operated by United Airlines.(UA 326) |
| Sat
17:55
Dulles, Washington (IAD)
20:48
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737-900 (739) 5:53 Effective 2025-07-12 through 2025-08-16 Codeshare flight, operated by United Airlines.(UA 326) |
| Daily
17:55
Dulles, Washington (IAD)
20:42
Seattle-Tacoma (SEA) Copa Airlines CM 2766 Non-stop Boeing 737 MAX 9 (7M9) 5:47 Effective 2025-08-19 through 2025-10-25 Codeshare flight, operated by United Airlines.(UA 326) |
| Tue,Thu,Sat,Sun
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:47 Effective 2025-06-12 through 2025-06-17 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Mon,Wed-Fri
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:47 Effective 2025-06-13 through 2025-06-19 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Tue,Fri,Sun
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:47 Effective 2025-06-20 through 2025-06-24 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Mon,Wed-Sat
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:47 Effective 2025-06-21 through 2025-06-27 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Sat,Sun
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:47 Effective 2025-06-28 through 2025-06-29 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Mon-Thu,Sat,Sun
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:47 Effective 2025-06-30 through 2025-07-10 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Tue-Sat
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:47 Effective 2025-07-11 through 2025-07-18 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Mon,Sat,Sun
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:47 Effective 2025-07-13 through 2025-07-20 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Daily
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:47 Effective 2025-07-21 through 2025-08-02 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Sun
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:47 Effective 2025-08-03 through 2025-08-17 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Mon-Fri
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:47 Effective 2025-08-04 through 2025-08-15 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Sat
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737-800 (73H) 5:47 Operates only on 2025-08-09 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Mon,Tue,Sat
18:13
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:47 Effective 2025-08-16 through 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Tue-Thu
18:15
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:45 Effective 2025-05-15 through 2025-05-21 Codeshare flight, operated by Alaska Airlines.(AS 351) |
| Mon,Thu-Sun
18:15
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:45 Effective 2025-05-16 through 2025-05-23 Codeshare flight, operated by Alaska Airlines.(AS 351) |
| Wed,Sat
18:15
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:45 Effective 2025-05-24 through 2025-05-28 Codeshare flight, operated by Alaska Airlines.(AS 351) |
| Mon,Tue,Thu-Sun
18:15
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:45 Effective 2025-05-25 through 2025-06-02 Codeshare flight, operated by Alaska Airlines.(AS 351) |
| Tue,Wed,Sat
18:15
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:45 Effective 2025-06-03 through 2025-06-10 Codeshare flight, operated by Alaska Airlines.(AS 351) |
| Mon,Thu,Fri,Sun
18:15
Dulles, Washington (IAD)
21:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:45 Effective 2025-06-05 through 2025-06-09 Codeshare flight, operated by Alaska Airlines.(AS 351) |
| Daily
18:55
Dulles, Washington (IAD)
21:40
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:45 Effective from 2025-10-04 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Mon,Wed-Fri,Sun
19:13
Dulles, Washington (IAD)
22:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 9 (7M9) 5:47 Valid until 2025-05-12 Codeshare flight, operated by Alaska Airlines.(AS 408) |
| Tue
19:13
Dulles, Washington (IAD)
22:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 MAX 8 (7M8) 5:47 Valid until 2025-05-13 Codeshare flight, operated by Alaska Airlines.(AS 408) |
| Wed
19:13
Dulles, Washington (IAD)
22:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:47 Operates only on 2025-05-14 Codeshare flight, operated by Alaska Airlines.(AS 408) |
| Daily
19:17
Dulles, Washington (IAD)
22:00
Seattle-Tacoma (SEA) Qatar Airways QR 2990 Non-stop Boeing 737 (73J) 5:43 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 406) |
| Daily
07:30
Dulles, Washington (IAD)
10:35
Seattle-Tacoma (SEA) Korean Air KE 3026 Non-stop Airbus A220-300 (223) 6:05 Effective 2025-12-20 through 2026-01-05 Codeshare flight, operated by Delta Air Lines.(DL 1084) |
| Mon-Fri,Sun
07:25
Dulles, Washington (IAD)
10:20
Seattle-Tacoma (SEA) Korean Air KE 3182 Non-stop Airbus A220-300 (223) 5:55 Valid until 2025-05-06 Codeshare flight, operated by Delta Air Lines.(DL 1015) |
| Sat
07:25
Dulles, Washington (IAD)
10:22
Seattle-Tacoma (SEA) Korean Air KE 3182 Non-stop Airbus A220-300 (223) 5:57 Valid until 2025-05-03 Codeshare flight, operated by Delta Air Lines.(DL 1015) |
| Daily
07:30
Dulles, Washington (IAD)
10:22
Seattle-Tacoma (SEA) Korean Air KE 3182 Non-stop Airbus A220-300 (223) 5:52 Effective 2025-07-07 through 2025-09-07 Codeshare flight, operated by Delta Air Lines.(DL 1015) |
| Daily
07:30
Dulles, Washington (IAD)
10:35
Seattle-Tacoma (SEA) Korean Air KE 3182 Non-stop Airbus A220-300 (223) 6:05 Effective 2025-09-08 through 2025-12-19 Codeshare flight, operated by Delta Air Lines.(DL 1015) |
| Daily
07:30
Dulles, Washington (IAD)
10:34
Seattle-Tacoma (SEA) Korean Air KE 3182 Non-stop Airbus A220-300 (223) 6:04 Effective from 2026-01-06 Codeshare flight, operated by Delta Air Lines.(DL 1015) |
| Daily
07:40
Dulles, Washington (IAD)
10:28
Seattle-Tacoma (SEA) Korean Air KE 3182 Non-stop Airbus A220-300 (223) 5:48 Effective 2025-06-08 through 2025-07-06 Codeshare flight, operated by Delta Air Lines.(DL 1015) |
| Daily
07:45
Dulles, Washington (IAD)
10:33
Seattle-Tacoma (SEA) Korean Air KE 3182 Non-stop Airbus A220-300 (223) 5:48 Effective 2025-05-07 through 2025-06-07 Codeshare flight, operated by Delta Air Lines.(DL 1015) |
| Mon,Wed,Thu,Sat,Sun
09:00
Dulles, Washington (IAD)
11:39
Seattle-Tacoma (SEA) Finnair AY 4588 Non-stop Boeing 737 (73J) 5:39 Effective 2025-05-15 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 396) |
| Mon,Wed,Thu,Sun
09:00
Dulles, Washington (IAD)
11:47
Seattle-Tacoma (SEA) Finnair AY 4588 Non-stop Boeing 737 (73J) 5:47 Effective 2025-06-12 through 2025-06-29 Codeshare flight, operated by Alaska Airlines.(AS 375) |
| Sat
09:00
Dulles, Washington (IAD)
11:43
Seattle-Tacoma (SEA) Finnair AY 4588 Non-stop Boeing 737 MAX 9 (7M9) 5:43 Effective 2025-06-14 through 2025-06-28 Codeshare flight, operated by Alaska Airlines.(AS 375) |
| Mon
09:00
Dulles, Washington (IAD)
11:47
Seattle-Tacoma (SEA) Finnair AY 4588 Non-stop Boeing 737 MAX 9 (7M9) 5:47 Operates only on 2025-06-30 Codeshare flight, operated by Alaska Airlines.(AS 375) |
| Mon,Wed,Thu,Sun
09:00
Dulles, Washington (IAD)
11:47
Seattle-Tacoma (SEA) Finnair AY 4588 Non-stop Boeing 737 (73J) 5:47 Effective 2025-07-02 through 2025-07-20 Codeshare flight, operated by Alaska Airlines.(AS 375) |
| Sat
09:00
Dulles, Washington (IAD)
11:43
Seattle-Tacoma (SEA) Finnair AY 4588 Non-stop Boeing 737 (73J) 5:43 Operates only on 2025-07-05 Codeshare flight, operated by Alaska Airlines.(AS 375) |
| Sat
09:00
Dulles, Washington (IAD)
11:43
Seattle-Tacoma (SEA) Finnair AY 4588 Non-stop Boeing 737 MAX 9 (7M9) 5:43 Effective 2025-07-12 through 2025-08-16 Codeshare flight, operated by Alaska Airlines.(AS 375) |
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Parallax here IAD-SEA
- A domestic route departing from the Dulles, Washington airport (IAD) and arriving at Seattle-Tacoma airport (SEA).
- The flight distance is 2299 miles, or 3699 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 5:35 and 6:05.
