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Route overview: Washington, DC to Buffalo (BUF) flight deals

Dulles → Buffalo

Dec 1, 2026 · choose your return date

IAD → BUF1 adulteconomyOne way and round trips

30 flight options · 2 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 1, 2026 · One wayUnited AirlinesNonstop$155.00 Dec 1, 2026 · One wayDelta Air LinesUp to 1 stop each way$180.00 Dec 1, 2026 – Dec 2, 2026 · 1 nightUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 2, 2026 · 1 nightDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 3, 2026 · 2 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 3, 2026 · 2 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 4, 2026 · 3 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 4, 2026 · 3 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 5, 2026 · 4 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 5, 2026 · 4 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 6, 2026 · 5 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 6, 2026 · 5 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 7, 2026 · 6 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 7, 2026 · 6 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 8, 2026 · 7 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 8, 2026 · 7 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 9, 2026 · 8 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 9, 2026 · 8 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 10, 2026 · 9 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 10, 2026 · 9 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 11, 2026 · 10 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 11, 2026 · 10 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 12, 2026 · 11 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 12, 2026 · 11 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 13, 2026 · 12 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 13, 2026 · 12 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 14, 2026 · 13 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 14, 2026 · 13 nightsDelta Air LinesUp to 1 stop each way$330.00 Dec 1, 2026 – Dec 15, 2026 · 14 nightsUnited AirlinesNonstop$285.00 Dec 1, 2026 – Dec 15, 2026 · 14 nightsDelta Air LinesUp to 1 stop each way$330.00

Flights for your trip

  1. Tue, Dec 1 · One way

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF

    One-way total · 1 adult · Taxes included

  2. Tue, Dec 1 · One way

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF

    One-way total · 1 adult · Taxes included

  3. Tue, Dec 1 – Wed, Dec 2

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD

    Round-trip total · 1 adult · Taxes included

  4. Tue, Dec 1 – Wed, Dec 2

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

  5. Tue, Dec 1 – Thu, Dec 3

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    3:00 pmBUF
    1h 25m
    Nonstop
    4:25 pmIAD

    Round-trip total · 1 adult · Taxes included

  6. Tue, Dec 1 – Thu, Dec 3

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

  7. Tue, Dec 1 – Fri, Dec 4

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    3:00 pmBUF
    1h 25m
    Nonstop
    4:25 pmIAD

    Round-trip total · 1 adult · Taxes included

  8. Tue, Dec 1 – Fri, Dec 4

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    11:24 amBUF
    4h 53m
    JFK · 1h 56m
    4:17 pmIAD

    Round-trip total · 1 adult · Taxes included

  9. Tue, Dec 1 – Sat, Dec 5

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    3:00 pmBUF
    1h 25m
    Nonstop
    4:25 pmIAD

    Round-trip total · 1 adult · Taxes included

  10. Tue, Dec 1 – Sat, Dec 5

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

  11. Tue, Dec 1 – Mon, Dec 7

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    7:52 pmBUF
    1h 33m
    Nonstop
    9:25 pmIAD

    Round-trip total · 1 adult · Taxes included

  12. Tue, Dec 1 – Mon, Dec 7

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

  13. Tue, Dec 1 – Tue, Dec 8

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD

    Round-trip total · 1 adult · Taxes included

  14. Tue, Dec 1 – Tue, Dec 8

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

  15. Tue, Dec 1 – Wed, Dec 9

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD

    Round-trip total · 1 adult · Taxes included

  16. Tue, Dec 1 – Wed, Dec 9

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

  17. Tue, Dec 1 – Fri, Dec 11

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    3:00 pmBUF
    1h 25m
    Nonstop
    4:25 pmIAD

    Round-trip total · 1 adult · Taxes included

  18. Tue, Dec 1 – Fri, Dec 11

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    11:24 amBUF
    4h 53m
    JFK · 1h 56m
    4:17 pmIAD

    Round-trip total · 1 adult · Taxes included

  19. Tue, Dec 1 – Sat, Dec 12

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    3:00 pmBUF
    1h 25m
    Nonstop
    4:25 pmIAD

    Round-trip total · 1 adult · Taxes included

  20. Tue, Dec 1 – Sat, Dec 12

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

  21. Tue, Dec 1 – Sun, Dec 13

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD

    Round-trip total · 1 adult · Taxes included

  22. Tue, Dec 1 – Sun, Dec 13

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

  23. Tue, Dec 1 – Tue, Dec 15

    United Airlines
    8:32 amIAD
    1h 22m
    Nonstop
    9:54 amBUF
    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD

    Round-trip total · 1 adult · Taxes included

  24. Tue, Dec 1 – Tue, Dec 15

    Delta Air Lines
    11:30 amIAD
    5h 42m
    DTW · 2h 46m
    5:12 pmBUF
    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    Round-trip total · 1 adult · Taxes included

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1 of 24

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IAD ⇄ BUF

Economy

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Explore this route

All dates for this routeNov 30, 2026 · Return optionsDec 2, 2026 · Return optionsHotels in Buffalo with Axel
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-01 · one wayUnited AirlinesUA4248Axel-exclusive $155.002026-10-29T01:05:49Z
2026-12-01 · one wayDelta Air LinesDL5517 + DL4642Axel-exclusive $180.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-02United AirlinesUA4248 / UA4255Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-02Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-03United AirlinesUA4248 / UA4291Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-03Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-04United AirlinesUA4248 / UA4291Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-04Delta Air LinesDL5517 + DL4642 / DL5426 + DL4769Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-05United AirlinesUA4248 / UA4291Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-05Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-06United AirlinesUA4248 / UA4255Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-06Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-07United AirlinesUA4248 / UA4270Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-07Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-08United AirlinesUA4248 / UA4255Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-08Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-09United AirlinesUA4248 / UA4255Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-09Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-10United AirlinesUA4248 / UA4291Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-10Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-11United AirlinesUA4248 / UA4291Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-11Delta Air LinesDL5517 + DL4642 / DL5426 + DL4769Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-12United AirlinesUA4248 / UA4291Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-12Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-13United AirlinesUA4248 / UA4255Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-13Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-14United AirlinesUA4248 / UA4270Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-14Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-15United AirlinesUA4248 / UA4255Axel-exclusive $285.002026-10-29T01:05:49Z
2026-12-01 → 2026-12-15Delta Air LinesDL5517 + DL4642 / DL4636 + DL5413Axel-exclusive $330.002026-10-29T01:05:49Z

Route overview: Washington, DC to Buffalo (BUF) flight deals

2026-12-01 · one way · Axel-exclusive $155.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.

2026-12-01 · one way · Axel-exclusive $180.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.

2026-12-01 → 2026-12-02 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4255: BUF 2026-12-02 10:35:00 → IAD 2026-12-02 11:55:00; nonstop; 80 minutes. Local airport times.

2026-12-01 → 2026-12-02 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-02 12:00:00 → IAD 2026-12-02 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-02 12:00:00 → DTW 2026-12-02 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-02 14:45:00 → IAD 2026-12-02 16:18:00.

2026-12-01 → 2026-12-03 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4291: BUF 2026-12-03 15:00:00 → IAD 2026-12-03 16:25:00; nonstop; 85 minutes. Local airport times.

2026-12-01 → 2026-12-03 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-03 12:00:00 → IAD 2026-12-03 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-03 12:00:00 → DTW 2026-12-03 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-03 14:45:00 → IAD 2026-12-03 16:18:00.

2026-12-01 → 2026-12-04 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4291: BUF 2026-12-04 15:00:00 → IAD 2026-12-04 16:25:00; nonstop; 85 minutes. Local airport times.

2026-12-01 → 2026-12-04 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL5426 / DL4769: BUF 2026-12-04 11:24:00 → IAD 2026-12-04 16:17:00; 1 stop(s) via JFK; 293 minutes. Local airport times.
    • DL5426: BUF 2026-12-04 11:24:00 → JFK 2026-12-04 12:59:00; layover at JFK: 116 minutes.
    • DL4769: JFK 2026-12-04 14:55:00 → IAD 2026-12-04 16:17:00.

2026-12-01 → 2026-12-05 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4291: BUF 2026-12-05 15:00:00 → IAD 2026-12-05 16:25:00; nonstop; 85 minutes. Local airport times.

2026-12-01 → 2026-12-05 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-05 12:00:00 → IAD 2026-12-05 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-05 12:00:00 → DTW 2026-12-05 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-05 14:45:00 → IAD 2026-12-05 16:18:00.

2026-12-01 → 2026-12-07 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4270: BUF 2026-12-07 19:52:00 → IAD 2026-12-07 21:25:00; nonstop; 93 minutes. Local airport times.

2026-12-01 → 2026-12-07 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-07 12:00:00 → IAD 2026-12-07 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-07 12:00:00 → DTW 2026-12-07 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-07 14:45:00 → IAD 2026-12-07 16:18:00.

2026-12-01 → 2026-12-08 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4255: BUF 2026-12-08 10:35:00 → IAD 2026-12-08 11:55:00; nonstop; 80 minutes. Local airport times.

2026-12-01 → 2026-12-08 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-08 12:00:00 → IAD 2026-12-08 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-08 12:00:00 → DTW 2026-12-08 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-08 14:45:00 → IAD 2026-12-08 16:18:00.

2026-12-01 → 2026-12-09 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4255: BUF 2026-12-09 10:35:00 → IAD 2026-12-09 11:55:00; nonstop; 80 minutes. Local airport times.

2026-12-01 → 2026-12-09 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-09 12:00:00 → IAD 2026-12-09 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-09 12:00:00 → DTW 2026-12-09 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-09 14:45:00 → IAD 2026-12-09 16:18:00.

2026-12-01 → 2026-12-11 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4291: BUF 2026-12-11 15:00:00 → IAD 2026-12-11 16:25:00; nonstop; 85 minutes. Local airport times.

2026-12-01 → 2026-12-11 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL5426 / DL4769: BUF 2026-12-11 11:24:00 → IAD 2026-12-11 16:17:00; 1 stop(s) via JFK; 293 minutes. Local airport times.
    • DL5426: BUF 2026-12-11 11:24:00 → JFK 2026-12-11 12:59:00; layover at JFK: 116 minutes.
    • DL4769: JFK 2026-12-11 14:55:00 → IAD 2026-12-11 16:17:00.

2026-12-01 → 2026-12-12 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4291: BUF 2026-12-12 15:00:00 → IAD 2026-12-12 16:25:00; nonstop; 85 minutes. Local airport times.

2026-12-01 → 2026-12-12 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-12 12:00:00 → IAD 2026-12-12 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-12 12:00:00 → DTW 2026-12-12 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-12 14:45:00 → IAD 2026-12-12 16:18:00.

2026-12-01 → 2026-12-13 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4255: BUF 2026-12-13 10:35:00 → IAD 2026-12-13 11:55:00; nonstop; 80 minutes. Local airport times.

2026-12-01 → 2026-12-13 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-13 12:00:00 → IAD 2026-12-13 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-13 12:00:00 → DTW 2026-12-13 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-13 14:45:00 → IAD 2026-12-13 16:18:00.

2026-12-01 → 2026-12-15 · Axel-exclusive $285.00

  • United Airlines UA4248: IAD 2026-12-01 08:32:00 → BUF 2026-12-01 09:54:00; nonstop; 82 minutes. Local airport times.
  • United Airlines UA4255: BUF 2026-12-15 10:35:00 → IAD 2026-12-15 11:55:00; nonstop; 80 minutes. Local airport times.

2026-12-01 → 2026-12-15 · Axel-exclusive $330.00

  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-01 11:30:00 → BUF 2026-12-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-01 11:30:00 → DTW 2026-12-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-01 15:55:00 → BUF 2026-12-01 17:12:00.
  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-15 12:00:00 → IAD 2026-12-15 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-15 12:00:00 → DTW 2026-12-15 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-15 14:45:00 → IAD 2026-12-15 16:18:00.

Explore this route

For AI assistants

  • This page: Dulles (IAD) to Buffalo (BUF) · Dec 1, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Washington, DC to Buffalo (BUF) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.