All airlines flying from Seattle-Tacoma (SEA) to Washington Dulles (IAD).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Daily
08:10
Seattle-Tacoma (SEA)
16:16
Washington Dulles (IAD) United Airlines UA 2217 Non-stop Boeing 737-900 (739) 5:06 Effective 2026-02-05 through 2026-02-11 |
| Daily
08:17
Seattle-Tacoma (SEA)
16:19
Washington Dulles (IAD) United Airlines UA 2217 Non-stop Boeing 737-900 (739) 5:02 Effective 2026-02-12 through 2026-03-04 |
| Wed
08:20
Seattle-Tacoma (SEA)
16:26
Washington Dulles (IAD) United Airlines UA 2217 Non-stop Boeing 737-900 (739) 5:06 Operates only on 2026-02-04 |
| Tue-Fri
08:00
Seattle-Tacoma (SEA)
16:02
Washington Dulles (IAD) United Airlines UA 2474 Non-stop Boeing 737 MAX 8 (7M8) 5:02 Effective 2026-03-05 through 2026-03-27 |
| Sat,Sun
08:00
Seattle-Tacoma (SEA)
16:02
Washington Dulles (IAD) United Airlines UA 2474 Non-stop Boeing 737-800 (738) 5:02 Effective 2026-03-07 through 2026-03-28 |
| Mon
08:00
Seattle-Tacoma (SEA)
16:02
Washington Dulles (IAD) United Airlines UA 2474 Non-stop Boeing 737-900 (739) 5:02 Effective 2026-03-09 through 2026-03-23 |
| Non-Direct Flights: |
| Thu
12:12
Seattle-Tacoma (SEA)
23:21
Washington Dulles (IAD) United Airlines UA 1784 1-stop Boeing 737 MAX 8 (7M8) 8:09 Operates only on 2026-02-12 |
| Sun
12:12
Seattle-Tacoma (SEA)
23:21
Washington Dulles (IAD) United Airlines UA 1784 1-stop Boeing 737-900 (739) 8:09 Operates only on 2026-02-15 |
| Sun
12:18
Seattle-Tacoma (SEA)
23:21
Washington Dulles (IAD) United Airlines UA 1784 1-stop Boeing 737-900 (739) 8:03 Effective 2026-02-22 through 2026-03-01 |
| Fri
12:25
Seattle-Tacoma (SEA)
23:21
Washington Dulles (IAD) United Airlines UA 1784 1-stop Boeing 737-900 (739) 7:56 Effective 2026-02-13 through 2026-02-27 |
| Sat
12:42
Seattle-Tacoma (SEA)
23:21
Washington Dulles (IAD) United Airlines UA 1784 1-stop Boeing 737-900 (739) 7:39 Effective 2026-02-14 through 2026-02-28 |
| Mon-Thu
12:43
Seattle-Tacoma (SEA)
23:21
Washington Dulles (IAD) United Airlines UA 1784 1-stop Boeing 737-900 (739) 7:38 Effective 2026-02-16 through 2026-02-26 |
| Mon
12:43
Seattle-Tacoma (SEA)
23:21
Washington Dulles (IAD) United Airlines UA 1784 1-stop Boeing 737 MAX 9 (7M9) 7:38 Operates only on 2026-03-02 |
| Tue,Wed
12:43
Seattle-Tacoma (SEA)
23:21
Washington Dulles (IAD) United Airlines UA 1784 1-stop Boeing 737-900 (739) 7:38 Effective 2026-03-03 through 2026-03-04 |
| Direct Codeshare Flights: |
| Wed,Thu
08:00
Seattle-Tacoma (SEA)
16:02
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737 MAX 8 (7M8) 5:02 Effective 2026-03-05 through 2026-03-26 Codeshare flight, operated by United Airlines.(UA 2474) |
| Sat
08:00
Seattle-Tacoma (SEA)
16:02
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-800 (738) 5:02 Effective 2026-03-07 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 2474) |
| Mon
08:00
Seattle-Tacoma (SEA)
16:02
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 5:02 Effective 2026-03-09 through 2026-03-23 Codeshare flight, operated by United Airlines.(UA 2474) |
| Mon,Wed,Thu,Sat
08:00
Seattle-Tacoma (SEA)
16:11
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737 MAX 9 (7M9) 5:11 Effective 2026-03-30 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 1523) |
| Mon,Wed,Thu,Sat
08:00
Seattle-Tacoma (SEA)
16:11
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 5:11 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 1523) |
| Wed,Thu,Sat
08:00
Seattle-Tacoma (SEA)
15:53
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-08-19 through 2026-08-29 Codeshare flight, operated by United Airlines.(UA 1523) |
| Mon,Wed,Thu,Sat
08:00
Seattle-Tacoma (SEA)
15:53
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-08-31 through 2026-09-19 Codeshare flight, operated by United Airlines.(UA 1523) |
| Mon,Wed,Sat
08:00
Seattle-Tacoma (SEA)
15:53
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:53 Effective from 2026-10-26 Codeshare flight, operated by United Airlines.(UA 1523) |
| Mon,Wed,Thu,Sat
08:10
Seattle-Tacoma (SEA)
16:16
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 5:06 Effective 2026-01-07 through 2026-02-02 Codeshare flight, operated by United Airlines.(UA 2217) |
| Mon,Wed,Thu,Sat
08:10
Seattle-Tacoma (SEA)
16:16
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 5:06 Effective 2026-02-05 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 2217) |
| Mon,Wed,Thu,Sat
08:17
Seattle-Tacoma (SEA)
16:19
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 5:02 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 2217) |
| Wed
08:20
Seattle-Tacoma (SEA)
16:26
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 5:06 Operates only on 2026-02-04 Codeshare flight, operated by United Airlines.(UA 2217) |
| Daily
22:10
Seattle-Tacoma (SEA)
06:03
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-05-21 through 2026-08-17 Codeshare flight, operated by United Airlines.(UA 1355) The flight arrives 1 day after departure. |
| Mon,Sun
22:10
Seattle-Tacoma (SEA)
06:03
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-08-23 through 2026-08-24 Codeshare flight, operated by United Airlines.(UA 1355) The flight arrives 1 day after departure. |
| Daily
22:10
Seattle-Tacoma (SEA)
06:03
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-09-20 through 2026-10-24 Codeshare flight, operated by United Airlines.(UA 1355) The flight arrives 1 day after departure. |
| Daily
23:15
Seattle-Tacoma (SEA)
07:11
Washington Dulles (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737 MAX 9 (7M9) 4:56 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 2019) The flight arrives 1 day after departure. |
| Thu
08:00
Seattle-Tacoma (SEA)
16:06
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-800 (738) 5:06 Valid until 2026-01-01 Codeshare flight, operated by United Airlines.(UA 2217) |
| Tue,Wed,Fri
08:00
Seattle-Tacoma (SEA)
16:06
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 8 (7M8) 5:06 Valid until 2026-01-02 Codeshare flight, operated by United Airlines.(UA 2217) |
| Tue,Thu
08:00
Seattle-Tacoma (SEA)
16:02
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 8 (7M8) 5:02 Effective 2026-03-05 through 2026-03-26 Codeshare flight, operated by United Airlines.(UA 2474) |
| Sat
08:00
Seattle-Tacoma (SEA)
16:02
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-800 (738) 5:02 Effective 2026-03-07 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 2474) |
| Tue,Thu,Sat
08:00
Seattle-Tacoma (SEA)
16:11
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 9 (7M9) 5:11 Effective 2026-03-31 through 2026-04-28 Codeshare flight, operated by United Airlines.(UA 1523) |
| Tue
08:00
Seattle-Tacoma (SEA)
16:11
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 5:11 Operates only on 2026-05-19 Codeshare flight, operated by United Airlines.(UA 1523) |
| Tue,Thu,Sat
08:00
Seattle-Tacoma (SEA)
15:53
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-05-21 through 2026-06-20 Codeshare flight, operated by United Airlines.(UA 1523) |
| Tue,Thu,Sat
08:00
Seattle-Tacoma (SEA)
15:53
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:53 Effective from 2026-07-21 Codeshare flight, operated by United Airlines.(UA 1523) |
| Daily
08:10
Seattle-Tacoma (SEA)
16:16
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 5:06 Effective 2026-01-06 through 2026-01-31 Codeshare flight, operated by United Airlines.(UA 2217) |
| Tue,Thu,Sat
08:10
Seattle-Tacoma (SEA)
16:16
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 5:06 Effective 2026-02-03 through 2026-02-10 Codeshare flight, operated by United Airlines.(UA 2217) |
| Tue,Thu,Sat
08:17
Seattle-Tacoma (SEA)
16:19
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 5:02 Effective 2026-02-12 through 2026-03-03 Codeshare flight, operated by United Airlines.(UA 2217) |
| Mon,Wed,Fri,Sun
12:45
Seattle-Tacoma (SEA)
20:38
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-05-22 through 2026-06-22 Codeshare flight, operated by United Airlines.(UA 2131) |
| Daily
12:45
Seattle-Tacoma (SEA)
20:38
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-06-23 through 2026-07-20 Codeshare flight, operated by United Airlines.(UA 2131) |
| Mon,Wed,Fri,Sun
12:45
Seattle-Tacoma (SEA)
20:38
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-07-22 through 2026-08-17 Codeshare flight, operated by United Airlines.(UA 2131) |
| Daily
13:10
Seattle-Tacoma (SEA)
21:18
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 8 (7M8) 5:08 Effective 2026-04-30 through 2026-05-18 Codeshare flight, operated by United Airlines.(UA 2131) |
| Wed
13:10
Seattle-Tacoma (SEA)
21:18
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 8 (7M8) 5:08 Operates only on 2026-05-20 Codeshare flight, operated by United Airlines.(UA 2131) |
| Sun
22:10
Seattle-Tacoma (SEA)
06:03
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:53 Effective 2026-08-23 through 2026-10-18 Codeshare flight, operated by United Airlines.(UA 1355) The flight arrives 1 day after departure. |
| Sat,Sun
23:15
Seattle-Tacoma (SEA)
07:11
Washington Dulles (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 9 (7M9) 4:56 Valid until 2026-01-04 Codeshare flight, operated by United Airlines.(UA 2019) The flight arrives 1 day after departure. |
| Mon,Thu,Fri,Sun
21:45
Seattle-Tacoma (SEA)
05:40
Washington Dulles (IAD) Qatar Airways QR 2068 Non-stop Boeing 737 MAX 9 (7M9) 4:55 Effective 2026-03-12 through 2026-03-16 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure. |
| Wed
21:55
Seattle-Tacoma (SEA)
05:55
Washington Dulles (IAD) Qatar Airways QR 2068 Non-stop Boeing 737 (73J) 5:00 Operates only on 2026-03-18 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure. |
- A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Washington Dulles airport (IAD).
- The flight distance is 2299 miles, or 3699 km.
- The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . 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 4:50 and 5:17.
