Airlines with flights from Dulles to Seattle

There are four airlines with scheduled flights between IAD and SEA. Alaska Airlines, United and Delta has non-stop flights from Dulles to Seattle Airport and the flight time is 5 hours and 56 minutes.

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Schedules

Non-stop with Alaska Airlines

  • Total flight time: 5 hours and 56 minutes
  • One World Alliance
  • Seattle is a Alaska Airlines hub (Primary hub).
  • 7 flights per week
  • Boeing 737MAX 9 Passenger
    Boeing 737-900 (winglets) Passenger/BBJ3
  • First class available
IAD
Direct
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
AS351
18:57
18:57
18:57
18:57
18:57
18:57
18:57
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The timetable & schedule information was updated at 2025-01-15

Non-stop with United Airlines

  • Total flight time: 5 hours and 51 minutes
  • Dulles is a United Airlines hub (Secondary hub).
  • 7 flights per week
  • Boeing 737-900 Passenger
    Boeing 737-800 Passenger
  • First class available
IAD
Direct
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
UA326
17:30
17:30
17:30
17:30
17:30
17:30
17:30
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The timetable & schedule information was updated at 2025-01-15

Non-stop with Delta Air Lines

  • Total flight time: 6 hours and 1 minutes
  • Sky Team Alliance
  • Seattle is a Delta Air Lines hub.
  • 7 flights per week
  • Code 223
  • First class available
IAD
Direct
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
DL508
16:05
16:05
16:05
16:05
16:05
16:05
16:05
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The timetable & schedule information was updated at 2025-01-15

Via Atlanta with Delta Air Lines

  • Total flight time: 8h 05m - 10h 44m.
  • Sky Team Alliance
  • Seattle is a Delta Air Lines hub.
  • 28 flights per week
  • Code 223
IAD
 
Via ATL
 
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
DL3648
DL734
06:00
06:00
06:00
06:00
06:00
06:00
06:00
DL2550
DL774
06:00
06:00
06:00
06:00
06:00
06:00
06:00
DL3996
DL868
06:05
06:05
06:05
06:05
06:05
06:05
06:05
DL3996
DL889
06:05
06:05
06:05
06:05
06:05
06:05
06:05
DL432
DL2995
07:20
07:20
07:20
07:20
07:20
07:20
07:20
DL1354
DL629
07:25
07:25
07:25
07:25
07:25
07:25
07:25
DL1400
DL481
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----
----
----
----
12:52
12:52
DL3680
DL881
15:05
15:05
15:05
15:05
15:05
15:05
15:05
DL3677
DL565
17:16
17:16
17:16
17:16
17:16
17:16
17:16
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CHECK PRICES FOR IAD - SEA

The timetable & schedule information was updated at 2025-01-15

Via Denver with United Airlines

  • Total flight time: 7h 46m - 10h 12m.
  • Dulles is a United Airlines hub (Secondary hub).
  • 26 flights per week
  • Boeing 737-900 Passenger
    Boeing 737-800 Passenger
IAD
 
Via DEN
 
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
UA2440
UA2849
----
----
----
----
----
08:25
08:25
UA1017
UA690
08:33
08:33
08:33
08:33
08:33
08:33
08:33
UA2410
UA745
12:40
12:40
12:40
12:40
12:40
12:43
12:40
UA1218
UA299
16:00
16:00
16:00
16:00
16:00
16:00
16:00
UA1218
UA2651
16:00
----
16:00
16:00
16:00
----
16:00
UA2463
UA2651
17:20
----
17:20
17:20
17:20
----
17:20
UA1117
UA2211
17:36
17:36
17:36
17:36
17:36
17:36
17:36
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CHECK PRICES FOR IAD - SEA

The timetable & schedule information was updated at 2025-01-15

Via Chicago with United Airlines

  • Total flight time: 7h 27m - 12h 44m.
  • Dulles is a United Airlines hub (Secondary hub).
  • 19 flights per week
  • Boeing 737-900 Passenger
    Boeing 737-800 Passenger
IAD
 
Via ORD
 
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
UA2440
UA2849
----
----
----
----
----
08:25
08:25
UA1017
UA690
08:33
08:33
08:33
08:33
08:33
08:33
08:33
UA2410
UA745
12:40
12:40
12:40
12:40
12:40
12:43
12:40
UA1218
UA299
16:00
16:00
16:00
16:00
16:00
16:00
16:00
UA1218
UA2651
16:00
----
16:00
16:00
16:00
----
16:00
UA2463
UA2651
17:20
----
17:20
17:20
17:20
----
17:20
UA1117
UA2211
17:36
17:36
17:36
17:36
17:36
17:36
17:36
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAD - SEA

The timetable & schedule information was updated at 2025-01-15

Via Denver with Southwest Airlines

  • Total flight time: 7h 30m - 12h 15m.
  • Low-cost airline
  • 16 flights per week
IAD
 
Via DEN
 
SEA
 
Flight
Mon
Feb 3
Tue
Feb 4
Wed
Feb 5
Thu
Feb 6
Fri
Feb 7
Sat
Feb 8
Sun
Feb 9
WN513
WN2356
11:10
11:10
11:10
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----
11:10
WN1082
WN540
----
----
----
17:20
17:20
----
----
WN1130
WN540
17:50
17:50
17:50
----
----
----
17:50
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAD - SEA

The timetable & schedule information was updated at 2025-01-15

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