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 19 minutes.

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Schedules

United Airlines

Non-stop with United Airlines

  • Total flight time: 1 hour and 19 minutes
  • Dulles is a United Airlines hub (Secondary hub).
  • 25 flights per week
  • Canadair (Bombardier) Regional Jet 550
    Embraer RJ135 / RJ140 / RJ145
  • First class available
BUF
Direct
IAD
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA4534
06:09
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06:09
06:09
06:09
06:09
UA4179
10:34
10:34
10:34
10:34
10:34
10:34
10:34
UA4291
15:00
15:00
15:00
15:00
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UA4548
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15:00
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15:00
UA4270
19:52
19:52
19:52
19:52
19:52
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19:52
UA4432
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19:52
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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
  • Canadair (Bombardier) Regional Jet 550
    Embraer RJ135 / RJ140 / RJ145
BUF
 
Via EWR
 
IAD
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA3420
UA1413
06:00
06:00
06:00
06:00
06:00
06:00
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UA3716
UA1784
19:00
19:00
19:00
19:00
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
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
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 2026-06-02
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