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Route overview: Chicago to Buffalo (BUF) flight deals

Chicago → Buffalo

Dec 27, 2026 · choose your return date

ORD → 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 27, 2026 · One wayFrontier AirlinesUp to 1 stop each way$128.25 Dec 27, 2026 · One wayAmerican AirlinesNonstop$195.75 Dec 27, 2026 – Dec 28, 2026 · 1 nightFrontier AirlinesUp to 1 stop each way$243.00 Dec 27, 2026 – Dec 28, 2026 · 1 nightAmerican AirlinesNonstop$371.26 Dec 27, 2026 – Dec 29, 2026 · 2 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 27, 2026 – Dec 29, 2026 · 2 nightsAmerican AirlinesNonstop$371.26 Dec 27, 2026 – Dec 30, 2026 · 3 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 27, 2026 – Dec 30, 2026 · 3 nightsAmerican AirlinesNonstop$371.26 Dec 27, 2026 – Dec 31, 2026 · 4 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 27, 2026 – Dec 31, 2026 · 4 nightsAmerican AirlinesNonstop$371.26 Dec 27, 2026 – Jan 1, 2027 · 5 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 27, 2026 – Jan 1, 2027 · 5 nightsAmerican AirlinesNonstop$371.26 Dec 27, 2026 – Jan 2, 2027 · 6 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 27, 2026 – Jan 2, 2027 · 6 nightsAmerican AirlinesNonstop$371.26 Dec 27, 2026 – Jan 3, 2027 · 7 nightsFrontier AirlinesUp to 1 stop each way$243.00 Dec 27, 2026 – Jan 3, 2027 · 7 nightsAmerican AirlinesNonstop$371.26 Dec 27, 2026 – Jan 4, 2027 · 8 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 27, 2026 – Jan 4, 2027 · 8 nightsAmerican AirlinesNonstop$323.13 Dec 27, 2026 – Jan 5, 2027 · 9 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 27, 2026 – Jan 5, 2027 · 9 nightsAmerican AirlinesNonstop$323.13 Dec 27, 2026 – Jan 6, 2027 · 10 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 27, 2026 – Jan 6, 2027 · 10 nightsAmerican AirlinesNonstop$323.13 Dec 27, 2026 – Jan 7, 2027 · 11 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 27, 2026 – Jan 7, 2027 · 11 nightsAmerican AirlinesNonstop$323.13 Dec 27, 2026 – Jan 8, 2027 · 12 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 27, 2026 – Jan 8, 2027 · 12 nightsAmerican AirlinesNonstop$323.13 Dec 27, 2026 – Jan 9, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 27, 2026 – Jan 9, 2027 · 13 nightsAmerican AirlinesNonstop$323.13 Dec 27, 2026 – Jan 10, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 27, 2026 – Jan 10, 2027 · 14 nightsAmerican AirlinesNonstop$323.13

Flights for your trip

  1. Sun, Dec 27 · One way

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF

    One-way total · 1 adult · Taxes included

  2. Sun, Dec 27 · One way

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF

    One-way total · 1 adult · Taxes included

  3. Sun, Dec 27 – Mon, Dec 28

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  4. Sun, Dec 27 – Mon, Dec 28

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:04 amBUF
    2h 6m
    Nonstop
    7:10 amORD

    Round-trip total · 1 adult · Taxes included

  5. Sun, Dec 27 – Tue, Dec 29

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  6. Sun, Dec 27 – Tue, Dec 29

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    7:57 amBUF
    2h 8m
    Nonstop
    9:05 amORD

    Round-trip total · 1 adult · Taxes included

  7. Sun, Dec 27 – Wed, Dec 30

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  8. Sun, Dec 27 – Wed, Dec 30

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:45 pmBUF
    2h 14m
    Nonstop
    7:59 pmORD

    Round-trip total · 1 adult · Taxes included

  9. Sun, Dec 27 – Thu, Dec 31

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  10. Sun, Dec 27 – Thu, Dec 31

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:04 amBUF
    2h 6m
    Nonstop
    7:10 amORD

    Round-trip total · 1 adult · Taxes included

  11. Sun, Dec 27 – Sat, Jan 2

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  12. Sun, Dec 27 – Sat, Jan 2

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:44 pmBUF
    2h 10m
    Nonstop
    7:54 pmORD

    Round-trip total · 1 adult · Taxes included

  13. Sun, Dec 27 – Sun, Jan 3

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  14. Sun, Dec 27 – Sun, Jan 3

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:04 amBUF
    2h 6m
    Nonstop
    7:10 amORD

    Round-trip total · 1 adult · Taxes included

  15. Sun, Dec 27 – Mon, Jan 4

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  16. Sun, Dec 27 – Mon, Jan 4

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:04 amBUF
    2h 6m
    Nonstop
    7:10 amORD

    Round-trip total · 1 adult · Taxes included

  17. Sun, Dec 27 – Wed, Jan 6

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  18. Sun, Dec 27 – Wed, Jan 6

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:45 pmBUF
    2h 14m
    Nonstop
    7:59 pmORD

    Round-trip total · 1 adult · Taxes included

  19. Sun, Dec 27 – Thu, Jan 7

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  20. Sun, Dec 27 – Thu, Jan 7

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:04 amBUF
    2h 6m
    Nonstop
    7:10 amORD

    Round-trip total · 1 adult · Taxes included

  21. Sun, Dec 27 – Fri, Jan 8

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  22. Sun, Dec 27 – Fri, Jan 8

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:49 pmBUF
    2h 10m
    Nonstop
    7:59 pmORD

    Round-trip total · 1 adult · Taxes included

  23. Sun, Dec 27 – Sun, Jan 10

    Frontier Airlines
    5:35 amORD
    7h
    MCO · 1h 17m
    1:35 pmBUF
    Frontier Airlines
    1:15 pmBUF
    5h 48m
    ATL · 1h 10m
    6:03 pmORD

    Round-trip total · 1 adult · Taxes included

  24. Sun, Dec 27 – Sun, Jan 10

    American Airlines
    7:00 pmORD
    1h 37m
    Nonstop
    9:37 pmBUF
    American Airlines
    6:04 amBUF
    2h 6m
    Nonstop
    7:10 amORD

    Round-trip total · 1 adult · Taxes included

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1 of 24

Make this trip yours

ORD ⇄ BUF

Economy

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Explore this route

All dates for this routeDec 26, 2026 · Return optionsDec 28, 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)
2026-12-27 · one wayAmerican AirlinesAA1073Axel-exclusive $195.752026-10-29T01:52:59Z
2026-12-27 · one wayFrontier AirlinesF91901 + F91692Axel-exclusive $128.252026-10-29T01:52:59Z
2026-12-27 → 2026-12-28American AirlinesAA1073 / AA3012Axel-exclusive $371.262026-10-29T01:52:59Z
2026-12-27 → 2026-12-28Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $243.002026-10-29T01:52:59Z
2026-12-27 → 2026-12-29American AirlinesAA1073 / AA2359Axel-exclusive $371.262026-10-29T01:52:59Z
2026-12-27 → 2026-12-29Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $243.002026-10-29T01:52:59Z
2026-12-27 → 2026-12-30American AirlinesAA1073 / AA2202Axel-exclusive $371.262026-10-29T01:52:59Z
2026-12-27 → 2026-12-30Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $243.002026-10-29T01:52:59Z
2026-12-27 → 2026-12-31American AirlinesAA1073 / AA3012Axel-exclusive $371.262026-10-29T01:52:59Z
2026-12-27 → 2026-12-31Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $243.002026-10-29T01:52:59Z
2026-12-27 → 2027-01-01American AirlinesAA1073 / AA2306Axel-exclusive $371.262026-10-29T01:52:59Z
2026-12-27 → 2027-01-01Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $243.002026-10-29T01:52:59Z
2026-12-27 → 2027-01-02American AirlinesAA1073 / AA2306Axel-exclusive $371.262026-10-29T01:52:59Z
2026-12-27 → 2027-01-02Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $243.002026-10-29T01:52:59Z
2026-12-27 → 2027-01-03American AirlinesAA1073 / AA3012Axel-exclusive $371.262026-10-29T01:52:59Z
2026-12-27 → 2027-01-03Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $243.002026-10-29T01:52:59Z
2026-12-27 → 2027-01-04American AirlinesAA1073 / AA3012Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-27 → 2027-01-04Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-27 → 2027-01-05American AirlinesAA1073 / AA2359Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-27 → 2027-01-05Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-27 → 2027-01-06American AirlinesAA1073 / AA2202Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-27 → 2027-01-06Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-27 → 2027-01-07American AirlinesAA1073 / AA3012Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-27 → 2027-01-07Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-27 → 2027-01-08American AirlinesAA1073 / AA2306Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-27 → 2027-01-08Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-27 → 2027-01-09American AirlinesAA1073 / AA2306Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-27 → 2027-01-09Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-27 → 2027-01-10American AirlinesAA1073 / AA3012Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-27 → 2027-01-10Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z

Route overview: Chicago to Buffalo (BUF) flight deals

2026-12-27 · one way · Axel-exclusive $128.25

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.

2026-12-27 · one way · Axel-exclusive $195.75

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.

2026-12-27 → 2026-12-28 · Axel-exclusive $243.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-28 13:15:00 → ORD 2026-12-28 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-28 13:15:00 → ATL 2026-12-28 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-28 16:46:00 → ORD 2026-12-28 18:03:00.

2026-12-27 → 2026-12-28 · Axel-exclusive $371.26

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA3012: BUF 2026-12-28 06:04:00 → ORD 2026-12-28 07:10:00; nonstop; 126 minutes. Local airport times.

2026-12-27 → 2026-12-29 · Axel-exclusive $243.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-29 13:15:00 → ORD 2026-12-29 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-29 13:15:00 → ATL 2026-12-29 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-29 16:46:00 → ORD 2026-12-29 18:03:00.

2026-12-27 → 2026-12-29 · Axel-exclusive $371.26

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA2359: BUF 2026-12-29 07:57:00 → ORD 2026-12-29 09:05:00; nonstop; 128 minutes. Local airport times.

2026-12-27 → 2026-12-30 · Axel-exclusive $243.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-30 13:15:00 → ORD 2026-12-30 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-30 13:15:00 → ATL 2026-12-30 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-30 16:46:00 → ORD 2026-12-30 18:03:00.

2026-12-27 → 2026-12-30 · Axel-exclusive $371.26

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA2202: BUF 2026-12-30 18:45:00 → ORD 2026-12-30 19:59:00; nonstop; 134 minutes. Local airport times.

2026-12-27 → 2026-12-31 · Axel-exclusive $243.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-31 13:15:00 → ORD 2026-12-31 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-31 13:15:00 → ATL 2026-12-31 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-31 16:46:00 → ORD 2026-12-31 18:03:00.

2026-12-27 → 2026-12-31 · Axel-exclusive $371.26

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA3012: BUF 2026-12-31 06:04:00 → ORD 2026-12-31 07:10:00; nonstop; 126 minutes. Local airport times.

2026-12-27 → 2027-01-02 · Axel-exclusive $243.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2027-01-02 13:15:00 → ORD 2027-01-02 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2027-01-02 13:15:00 → ATL 2027-01-02 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2027-01-02 16:46:00 → ORD 2027-01-02 18:03:00.

2026-12-27 → 2027-01-02 · Axel-exclusive $371.26

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA2306: BUF 2027-01-02 18:44:00 → ORD 2027-01-02 19:54:00; nonstop; 130 minutes. Local airport times.

2026-12-27 → 2027-01-03 · Axel-exclusive $243.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2027-01-03 13:15:00 → ORD 2027-01-03 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2027-01-03 13:15:00 → ATL 2027-01-03 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2027-01-03 16:46:00 → ORD 2027-01-03 18:03:00.

2026-12-27 → 2027-01-03 · Axel-exclusive $371.26

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA3012: BUF 2027-01-03 06:04:00 → ORD 2027-01-03 07:10:00; nonstop; 126 minutes. Local airport times.

2026-12-27 → 2027-01-04 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2027-01-04 13:15:00 → ORD 2027-01-04 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2027-01-04 13:15:00 → ATL 2027-01-04 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2027-01-04 16:46:00 → ORD 2027-01-04 18:03:00.

2026-12-27 → 2027-01-04 · Axel-exclusive $323.13

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA3012: BUF 2027-01-04 06:04:00 → ORD 2027-01-04 07:10:00; nonstop; 126 minutes. Local airport times.

2026-12-27 → 2027-01-06 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2027-01-06 13:15:00 → ORD 2027-01-06 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2027-01-06 13:15:00 → ATL 2027-01-06 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2027-01-06 16:46:00 → ORD 2027-01-06 18:03:00.

2026-12-27 → 2027-01-06 · Axel-exclusive $323.13

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA2202: BUF 2027-01-06 18:45:00 → ORD 2027-01-06 19:59:00; nonstop; 134 minutes. Local airport times.

2026-12-27 → 2027-01-07 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2027-01-07 13:15:00 → ORD 2027-01-07 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2027-01-07 13:15:00 → ATL 2027-01-07 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2027-01-07 16:46:00 → ORD 2027-01-07 18:03:00.

2026-12-27 → 2027-01-07 · Axel-exclusive $323.13

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA3012: BUF 2027-01-07 06:04:00 → ORD 2027-01-07 07:10:00; nonstop; 126 minutes. Local airport times.

2026-12-27 → 2027-01-08 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2027-01-08 13:15:00 → ORD 2027-01-08 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2027-01-08 13:15:00 → ATL 2027-01-08 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2027-01-08 16:46:00 → ORD 2027-01-08 18:03:00.

2026-12-27 → 2027-01-08 · Axel-exclusive $323.13

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA2306: BUF 2027-01-08 18:49:00 → ORD 2027-01-08 19:59:00; nonstop; 130 minutes. Local airport times.

2026-12-27 → 2027-01-10 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-27 05:35:00 → BUF 2026-12-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-27 05:35:00 → MCO 2026-12-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-27 10:46:00 → BUF 2026-12-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2027-01-10 13:15:00 → ORD 2027-01-10 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2027-01-10 13:15:00 → ATL 2027-01-10 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2027-01-10 16:46:00 → ORD 2027-01-10 18:03:00.

2026-12-27 → 2027-01-10 · Axel-exclusive $323.13

  • American Airlines AA1073: ORD 2026-12-27 19:00:00 → BUF 2026-12-27 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA3012: BUF 2027-01-10 06:04:00 → ORD 2027-01-10 07:10:00; nonstop; 126 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Chicago (ORD) to Buffalo (BUF) · Dec 27, 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 Chicago 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.