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Route overview: Buffalo to Dulles (IAD) flight deals

Buffalo → Dulles

Dec 29, 2026 · choose your return date

BUF → IAD1 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 29, 2026 · One wayUnited AirlinesNonstop$201.25 Dec 29, 2026 · One wayDelta Air LinesUp to 1 stop each way$224.25 Dec 29, 2026 – Dec 30, 2026 · 1 nightUnited AirlinesNonstop$356.50 Dec 29, 2026 – Dec 30, 2026 · 1 nightDelta Air LinesUp to 1 stop each way$402.50 Dec 29, 2026 – Dec 31, 2026 · 2 nightsUnited AirlinesNonstop$356.50 Dec 29, 2026 – Dec 31, 2026 · 2 nightsDelta Air LinesUp to 1 stop each way$402.50 Dec 29, 2026 – Jan 1, 2027 · 3 nightsUnited AirlinesNonstop$356.50 Dec 29, 2026 – Jan 1, 2027 · 3 nightsDelta Air LinesUp to 1 stop each way$402.50 Dec 29, 2026 – Jan 2, 2027 · 4 nightsUnited AirlinesNonstop$356.50 Dec 29, 2026 – Jan 2, 2027 · 4 nightsDelta Air LinesUp to 1 stop each way$402.50 Dec 29, 2026 – Jan 3, 2027 · 5 nightsUnited AirlinesNonstop$356.50 Dec 29, 2026 – Jan 3, 2027 · 5 nightsDelta Air LinesUp to 1 stop each way$402.50 Dec 29, 2026 – Jan 4, 2027 · 6 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 4, 2027 · 6 nightsDelta Air LinesUp to 1 stop each way$376.25 Dec 29, 2026 – Jan 5, 2027 · 7 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 5, 2027 · 7 nightsDelta Air LinesUp to 1 stop each way$376.25 Dec 29, 2026 – Jan 6, 2027 · 8 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 6, 2027 · 8 nightsDelta Air LinesUp to 1 stop each way$376.25 Dec 29, 2026 – Jan 7, 2027 · 9 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 7, 2027 · 9 nightsDelta Air LinesUp to 1 stop each way$376.25 Dec 29, 2026 – Jan 8, 2027 · 10 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 8, 2027 · 10 nightsDelta Air LinesUp to 1 stop each way$376.25 Dec 29, 2026 – Jan 9, 2027 · 11 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 9, 2027 · 11 nightsDelta Air LinesUp to 1 stop each way$376.25 Dec 29, 2026 – Jan 10, 2027 · 12 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 10, 2027 · 12 nightsDelta Air LinesUp to 1 stop each way$376.25 Dec 29, 2026 – Jan 11, 2027 · 13 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 11, 2027 · 13 nightsDelta Air LinesUp to 1 stop each way$376.25 Dec 29, 2026 – Jan 12, 2027 · 14 nightsUnited AirlinesNonstop$333.25 Dec 29, 2026 – Jan 12, 2027 · 14 nightsDelta Air LinesUp to 1 stop each way$376.25

Flights for your trip

  1. Tue, Dec 29 · One way

    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD

    One-way total · 1 adult · Taxes included

  2. Tue, Dec 29 · One way

    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD

    One-way total · 1 adult · Taxes included

  3. Tue, Dec 29 – Wed, Dec 30

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

    Round-trip total · 1 adult · Taxes included

  4. Tue, Dec 29 – Wed, Dec 30

    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD
    Delta Air Lines
    12:35 pmIAD
    6h 44m
    JFK · 3h 34m
    7:19 pmBUF

    Round-trip total · 1 adult · Taxes included

  5. Tue, Dec 29 – Thu, Dec 31

    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD
    United Airlines
    5:30 pmIAD
    1h 35m
    Nonstop
    7:05 pmBUF

    Round-trip total · 1 adult · Taxes included

  6. Tue, Dec 29 – Thu, Dec 31

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

    Round-trip total · 1 adult · Taxes included

  7. Tue, Dec 29 – Fri, Jan 1

    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD
    United Airlines
    5:50 pmIAD
    1h 29m
    Nonstop
    7:19 pmBUF

    Round-trip total · 1 adult · Taxes included

  8. Tue, Dec 29 – Fri, Jan 1

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

    Round-trip total · 1 adult · Taxes included

  9. Tue, Dec 29 – Sat, Jan 2

    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD
    United Airlines
    10:19 pmIAD
    1h 25m
    Nonstop
    11:44 pmBUF

    Round-trip total · 1 adult · Taxes included

  10. Tue, Dec 29 – Sat, Jan 2

    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD
    Delta Air Lines
    12:35 pmIAD
    6h 44m
    JFK · 3h 34m
    7:19 pmBUF

    Round-trip total · 1 adult · Taxes included

  11. Tue, Dec 29 – Mon, Jan 4

    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD
    United Airlines
    8:32 amIAD
    1h 21m
    Nonstop
    9:53 amBUF

    Round-trip total · 1 adult · Taxes included

  12. Tue, Dec 29 – Mon, Jan 4

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

    Round-trip total · 1 adult · Taxes included

  13. Tue, Dec 29 – Tue, Jan 5

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

    Round-trip total · 1 adult · Taxes included

  14. Tue, Dec 29 – Tue, Jan 5

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

    Round-trip total · 1 adult · Taxes included

  15. Tue, Dec 29 – Wed, Jan 6

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

    Round-trip total · 1 adult · Taxes included

  16. Tue, Dec 29 – Wed, Jan 6

    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD
    Delta Air Lines
    12:35 pmIAD
    6h 44m
    JFK · 3h 34m
    7:19 pmBUF

    Round-trip total · 1 adult · Taxes included

  17. Tue, Dec 29 – Fri, Jan 8

    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD
    United Airlines
    5:50 pmIAD
    1h 29m
    Nonstop
    7:19 pmBUF

    Round-trip total · 1 adult · Taxes included

  18. Tue, Dec 29 – Fri, Jan 8

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

    Round-trip total · 1 adult · Taxes included

  19. Tue, Dec 29 – Sat, Jan 9

    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD
    United Airlines
    10:19 pmIAD
    1h 25m
    Nonstop
    11:44 pmBUF

    Round-trip total · 1 adult · Taxes included

  20. Tue, Dec 29 – Sat, Jan 9

    Delta Air Lines
    12:00 pmBUF
    4h 18m
    DTW · 1h 28m
    4:18 pmIAD
    Delta Air Lines
    12:35 pmIAD
    6h 44m
    JFK · 3h 34m
    7:19 pmBUF

    Round-trip total · 1 adult · Taxes included

  21. Tue, Dec 29 – Sun, Jan 10

    United Airlines
    10:35 amBUF
    1h 20m
    Nonstop
    11:55 amIAD
    United Airlines
    10:19 pmIAD
    1h 25m
    Nonstop
    11:44 pmBUF

    Round-trip total · 1 adult · Taxes included

  22. Tue, Dec 29 – Sun, Jan 10

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

    Round-trip total · 1 adult · Taxes included

  23. Tue, Dec 29 – Tue, Jan 12

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

    Round-trip total · 1 adult · Taxes included

  24. Tue, Dec 29 – Tue, Jan 12

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

    Round-trip total · 1 adult · Taxes included

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BUF ⇄ IAD

Economy

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Explore this route

All dates for this routeDec 28, 2026 · Return optionsDec 30, 2026 · Return optionsHotels in Washington, DC 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)
2026-12-29 · one wayUnited AirlinesUA4255Axel-exclusive $201.252026-10-29T00:54:05Z
2026-12-29 · one wayDelta Air LinesDL4636 + DL5413Axel-exclusive $224.252026-10-29T00:54:05Z
2026-12-29 → 2026-12-30United AirlinesUA4255 / UA4248Axel-exclusive $356.502026-10-29T00:54:05Z
2026-12-29 → 2026-12-30Delta Air LinesDL4636 + DL5413 / DL5618 + DL5250Axel-exclusive $402.502026-10-29T00:54:05Z
2026-12-29 → 2026-12-31United AirlinesUA4255 / UA4823Axel-exclusive $356.502026-10-29T00:54:05Z
2026-12-29 → 2026-12-31Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $402.502026-10-29T00:54:05Z
2026-12-29 → 2027-01-01United AirlinesUA4255 / UA6115Axel-exclusive $356.502026-10-29T00:54:05Z
2026-12-29 → 2027-01-01Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $402.502026-10-29T00:54:05Z
2026-12-29 → 2027-01-02United AirlinesUA4255 / UA4541Axel-exclusive $356.502026-10-29T00:54:05Z
2026-12-29 → 2027-01-02Delta Air LinesDL4636 + DL5413 / DL5618 + DL5250Axel-exclusive $402.502026-10-29T00:54:05Z
2026-12-29 → 2027-01-03United AirlinesUA4255 / UA4541Axel-exclusive $356.502026-10-29T00:54:05Z
2026-12-29 → 2027-01-03Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $402.502026-10-29T00:54:05Z
2026-12-29 → 2027-01-04United AirlinesUA4255 / UA4567Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-04Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $376.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-05United AirlinesUA4255 / UA4248Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-05Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $376.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-06United AirlinesUA4255 / UA4248Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-06Delta Air LinesDL4636 + DL5413 / DL5618 + DL5250Axel-exclusive $376.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-07United AirlinesUA4255 / UA4823Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-07Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $376.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-08United AirlinesUA4255 / UA6115Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-08Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $376.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-09United AirlinesUA4255 / UA4541Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-09Delta Air LinesDL4636 + DL5413 / DL5618 + DL5250Axel-exclusive $376.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-10United AirlinesUA4255 / UA4541Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-10Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $376.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-11United AirlinesUA4255 / UA4567Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-11Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $376.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-12United AirlinesUA4255 / UA4248Axel-exclusive $333.252026-10-29T00:54:05Z
2026-12-29 → 2027-01-12Delta Air LinesDL4636 + DL5413 / DL5517 + DL4642Axel-exclusive $376.252026-10-29T00:54:05Z

Route overview: Buffalo to Dulles (IAD) flight deals

2026-12-29 · one way · Axel-exclusive $201.25

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.

2026-12-29 · one way · Axel-exclusive $224.25

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.

2026-12-29 → 2026-12-30 · Axel-exclusive $356.50

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4248: IAD 2026-12-30 08:32:00 → BUF 2026-12-30 09:54:00; nonstop; 82 minutes. Local airport times.

2026-12-29 → 2026-12-30 · Axel-exclusive $402.50

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5618 / DL5250: IAD 2026-12-30 12:35:00 → BUF 2026-12-30 19:19:00; 1 stop(s) via JFK; 404 minutes. Local airport times.
    • DL5618: IAD 2026-12-30 12:35:00 → JFK 2026-12-30 14:01:00; layover at JFK: 214 minutes.
    • DL5250: JFK 2026-12-30 17:35:00 → BUF 2026-12-30 19:19:00.

2026-12-29 → 2026-12-31 · Axel-exclusive $356.50

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4823: IAD 2026-12-31 17:30:00 → BUF 2026-12-31 19:05:00; nonstop; 95 minutes. Local airport times.

2026-12-29 → 2026-12-31 · Axel-exclusive $402.50

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5517 / DL4642: IAD 2026-12-31 11:30:00 → BUF 2026-12-31 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2026-12-31 11:30:00 → DTW 2026-12-31 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2026-12-31 15:55:00 → BUF 2026-12-31 17:12:00.

2026-12-29 → 2027-01-01 · Axel-exclusive $356.50

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA6115: IAD 2027-01-01 17:50:00 → BUF 2027-01-01 19:19:00; nonstop; 89 minutes. Local airport times.

2026-12-29 → 2027-01-01 · Axel-exclusive $402.50

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5517 / DL4642: IAD 2027-01-01 11:30:00 → BUF 2027-01-01 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2027-01-01 11:30:00 → DTW 2027-01-01 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2027-01-01 15:55:00 → BUF 2027-01-01 17:12:00.

2026-12-29 → 2027-01-02 · Axel-exclusive $356.50

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4541: IAD 2027-01-02 22:19:00 → BUF 2027-01-02 23:44:00; nonstop; 85 minutes. Local airport times.

2026-12-29 → 2027-01-02 · Axel-exclusive $402.50

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5618 / DL5250: IAD 2027-01-02 12:35:00 → BUF 2027-01-02 19:19:00; 1 stop(s) via JFK; 404 minutes. Local airport times.
    • DL5618: IAD 2027-01-02 12:35:00 → JFK 2027-01-02 14:01:00; layover at JFK: 214 minutes.
    • DL5250: JFK 2027-01-02 17:35:00 → BUF 2027-01-02 19:19:00.

2026-12-29 → 2027-01-04 · Axel-exclusive $333.25

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4567: IAD 2027-01-04 08:32:00 → BUF 2027-01-04 09:53:00; nonstop; 81 minutes. Local airport times.

2026-12-29 → 2027-01-04 · Axel-exclusive $376.25

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5517 / DL4642: IAD 2027-01-04 11:30:00 → BUF 2027-01-04 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2027-01-04 11:30:00 → DTW 2027-01-04 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2027-01-04 15:55:00 → BUF 2027-01-04 17:12:00.

2026-12-29 → 2027-01-05 · Axel-exclusive $333.25

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4248: IAD 2027-01-05 08:32:00 → BUF 2027-01-05 09:54:00; nonstop; 82 minutes. Local airport times.

2026-12-29 → 2027-01-05 · Axel-exclusive $376.25

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5517 / DL4642: IAD 2027-01-05 11:30:00 → BUF 2027-01-05 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2027-01-05 11:30:00 → DTW 2027-01-05 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2027-01-05 15:55:00 → BUF 2027-01-05 17:12:00.

2026-12-29 → 2027-01-06 · Axel-exclusive $333.25

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4248: IAD 2027-01-06 08:32:00 → BUF 2027-01-06 09:54:00; nonstop; 82 minutes. Local airport times.

2026-12-29 → 2027-01-06 · Axel-exclusive $376.25

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5618 / DL5250: IAD 2027-01-06 12:35:00 → BUF 2027-01-06 19:19:00; 1 stop(s) via JFK; 404 minutes. Local airport times.
    • DL5618: IAD 2027-01-06 12:35:00 → JFK 2027-01-06 14:01:00; layover at JFK: 214 minutes.
    • DL5250: JFK 2027-01-06 17:35:00 → BUF 2027-01-06 19:19:00.

2026-12-29 → 2027-01-08 · Axel-exclusive $333.25

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA6115: IAD 2027-01-08 17:50:00 → BUF 2027-01-08 19:19:00; nonstop; 89 minutes. Local airport times.

2026-12-29 → 2027-01-08 · Axel-exclusive $376.25

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5517 / DL4642: IAD 2027-01-08 11:30:00 → BUF 2027-01-08 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2027-01-08 11:30:00 → DTW 2027-01-08 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2027-01-08 15:55:00 → BUF 2027-01-08 17:12:00.

2026-12-29 → 2027-01-09 · Axel-exclusive $333.25

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4541: IAD 2027-01-09 22:19:00 → BUF 2027-01-09 23:44:00; nonstop; 85 minutes. Local airport times.

2026-12-29 → 2027-01-09 · Axel-exclusive $376.25

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5618 / DL5250: IAD 2027-01-09 12:35:00 → BUF 2027-01-09 19:19:00; 1 stop(s) via JFK; 404 minutes. Local airport times.
    • DL5618: IAD 2027-01-09 12:35:00 → JFK 2027-01-09 14:01:00; layover at JFK: 214 minutes.
    • DL5250: JFK 2027-01-09 17:35:00 → BUF 2027-01-09 19:19:00.

2026-12-29 → 2027-01-10 · Axel-exclusive $333.25

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4541: IAD 2027-01-10 22:19:00 → BUF 2027-01-10 23:44:00; nonstop; 85 minutes. Local airport times.

2026-12-29 → 2027-01-10 · Axel-exclusive $376.25

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5517 / DL4642: IAD 2027-01-10 11:30:00 → BUF 2027-01-10 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2027-01-10 11:30:00 → DTW 2027-01-10 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2027-01-10 15:55:00 → BUF 2027-01-10 17:12:00.

2026-12-29 → 2027-01-12 · Axel-exclusive $333.25

  • United Airlines UA4255: BUF 2026-12-29 10:35:00 → IAD 2026-12-29 11:55:00; nonstop; 80 minutes. Local airport times.
  • United Airlines UA4248: IAD 2027-01-12 08:32:00 → BUF 2027-01-12 09:54:00; nonstop; 82 minutes. Local airport times.

2026-12-29 → 2027-01-12 · Axel-exclusive $376.25

  • Delta Air Lines DL4636 / DL5413: BUF 2026-12-29 12:00:00 → IAD 2026-12-29 16:18:00; 1 stop(s) via DTW; 258 minutes. Local airport times.
    • DL4636: BUF 2026-12-29 12:00:00 → DTW 2026-12-29 13:17:00; layover at DTW: 88 minutes.
    • DL5413: DTW 2026-12-29 14:45:00 → IAD 2026-12-29 16:18:00.
  • Delta Air Lines DL5517 / DL4642: IAD 2027-01-12 11:30:00 → BUF 2027-01-12 17:12:00; 1 stop(s) via DTW; 342 minutes. Local airport times.
    • DL5517: IAD 2027-01-12 11:30:00 → DTW 2027-01-12 13:09:00; layover at DTW: 166 minutes.
    • DL4642: DTW 2027-01-12 15:55:00 → BUF 2027-01-12 17:12:00.

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For AI assistants

  • This page: Buffalo (BUF) to Dulles (IAD) · Dec 29, 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 Buffalo to Dulles (IAD) 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.