Airlines with flights from Buffalo to Dulles

There are two airlines with scheduled flights between BUF and IAD. United is the only airline with non-stop flights from Buffalo Niagara International to Washington Dulles Airport and the flight time is 1 hour and 20 minutes.

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Schedules

United Airlines

Non-stop with United Airlines

  • Total flight time: 1 hour and 20 minutes
  • Dulles is a United Airlines hub (Secondary hub).
  • 25 flights per week
  • Embraer 175 (Enhanced Winglets)
    Canadair (Bombardier) Regional Jet 550
    Embraer RJ135 / RJ140 / RJ145
  • First class available
BUF
Direct
IAD
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
UA3668
06:15
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06:15
06:15
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06:15
UA4498
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06:15
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UA3430
10:34
10:34
10:34
10:34
10:34
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10:34
UA4468
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10:34
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UA4291
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15:00
15:00
15:00
15:00
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15:00
UA4521
15:00
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UA4270
19:52
19:52
19:52
19:52
19:52
19:52
19:52
SHOW RETURN SCHEDULE
CHECK PRICES FOR BUF - IAD

The timetable & schedule information was updated at 2026-04-21

United Airlines

Via New York with United Airlines

  • Total flight time: 3h 55m - 5h 53m.
  • Dulles is a United Airlines hub (Secondary hub).
  • 82 flights per week
  • Embraer 175 (Enhanced Winglets)
    Canadair (Bombardier) Regional Jet 550
    Embraer RJ135 / RJ140 / RJ145
BUF
 
Via EWR
 
IAD
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
UA3420
UA1691
06:00
06:00
06:00
06:00
06:00
06:00
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UA3716
UA1784
19:00
19:00
19:00
19:03
19:00
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19:00
SHOW RETURN SCHEDULE
CHECK PRICES FOR BUF - IAD

The timetable & schedule information was updated at 2026-04-21

Delta Air Lines

Via New York with Delta Air Lines

  • Total flight time: 4h 48m - 6h 18m.
  • Sky Team Alliance
  • 9 flights per week
BUF
 
Via JFK
 
IAD
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
DL5284
DL5835
07:00
07:00
07:00
07:00
07:00
07:00
07:00
SHOW RETURN SCHEDULE
CHECK PRICES FOR BUF - IAD

The timetable & schedule information was updated at 2026-04-21

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Flight data on this page was last updated on 2026-07-13
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