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Route overview: Chicago to Buffalo (BUF) flight deals

Chicago → Buffalo

Dec 16, 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 16, 2026 · One wayFrontier AirlinesUp to 1 stop each way$95.00 Dec 16, 2026 · One wayAmerican AirlinesNonstop$145.00 Dec 16, 2026 – Dec 17, 2026 · 1 nightFrontier AirlinesUp to 1 stop each way$180.00 Dec 16, 2026 – Dec 17, 2026 · 1 nightAmerican AirlinesNonstop$275.00 Dec 16, 2026 – Dec 18, 2026 · 2 nightsFrontier AirlinesUp to 1 stop each way$180.00 Dec 16, 2026 – Dec 18, 2026 · 2 nightsAmerican AirlinesNonstop$275.00 Dec 16, 2026 – Dec 19, 2026 · 3 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 19, 2026 · 3 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 20, 2026 · 4 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 20, 2026 · 4 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 21, 2026 · 5 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 21, 2026 · 5 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 22, 2026 · 6 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 22, 2026 · 6 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 23, 2026 · 7 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 23, 2026 · 7 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 24, 2026 · 8 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 24, 2026 · 8 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 25, 2026 · 9 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 25, 2026 · 9 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 26, 2026 · 10 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 26, 2026 · 10 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 27, 2026 · 11 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 27, 2026 · 11 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 28, 2026 · 12 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 28, 2026 · 12 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 29, 2026 · 13 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 29, 2026 · 13 nightsAmerican AirlinesNonstop$323.13 Dec 16, 2026 – Dec 30, 2026 · 14 nightsFrontier AirlinesUp to 1 stop each way$211.50 Dec 16, 2026 – Dec 30, 2026 · 14 nightsAmerican AirlinesNonstop$323.13

Flights for your trip

  1. Wed, Dec 16 · One way

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

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Wed, Dec 16 · One way

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Wed, Dec 16 – Thu, Dec 17

    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

    Availability is checked when you select these flights.

  4. Wed, Dec 16 – Thu, Dec 17

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:04 amBUF
    2h 6m
    Nonstop
    7:10 amORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Wed, Dec 16 – Fri, Dec 18

    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

    Availability is checked when you select these flights.

  6. Wed, Dec 16 – Fri, Dec 18

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    11:10 amBUF
    2h 20m
    Nonstop
    12:30 pmORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Wed, Dec 16 – Sat, Dec 19

    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

    Availability is checked when you select these flights.

  8. Wed, Dec 16 – Sat, Dec 19

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:25 amBUF
    2h 35m
    Nonstop
    8:00 amORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Wed, Dec 16 – Sun, Dec 20

    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

    Availability is checked when you select these flights.

  10. Wed, Dec 16 – Sun, Dec 20

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:25 amBUF
    2h 35m
    Nonstop
    8:00 amORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Wed, Dec 16 – Tue, Dec 22

    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

    Availability is checked when you select these flights.

  12. Wed, Dec 16 – Tue, Dec 22

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    11:10 amBUF
    2h 20m
    Nonstop
    12:30 pmORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Wed, Dec 16 – Wed, Dec 23

    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

    Availability is checked when you select these flights.

  14. Wed, Dec 16 – Wed, Dec 23

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:45 pmBUF
    2h 14m
    Nonstop
    7:59 pmORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Wed, Dec 16 – Thu, Dec 24

    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

    Availability is checked when you select these flights.

  16. Wed, Dec 16 – Thu, Dec 24

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:04 amBUF
    2h 6m
    Nonstop
    7:10 amORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Wed, Dec 16 – Sat, Dec 26

    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

    Availability is checked when you select these flights.

  18. Wed, Dec 16 – Sat, Dec 26

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:25 amBUF
    2h 35m
    Nonstop
    8:00 amORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Wed, Dec 16 – Sun, Dec 27

    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

    Availability is checked when you select these flights.

  20. Wed, Dec 16 – Sun, Dec 27

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:25 amBUF
    2h 35m
    Nonstop
    8:00 amORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Wed, Dec 16 – 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

    Availability is checked when you select these flights.

  22. Wed, Dec 16 – Mon, Dec 28

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:25 amBUF
    2h 35m
    Nonstop
    8:00 amORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Wed, Dec 16 – 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

    Availability is checked when you select these flights.

  24. Wed, Dec 16 – Wed, Dec 30

    American Airlines
    8:00 amORD
    1h 56m
    Nonstop
    10:56 amBUF
    American Airlines
    6:45 pmBUF
    2h 14m
    Nonstop
    7:59 pmORD

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

ORD ⇄ BUF

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 15, 2026 · Return optionsDec 17, 2026 · Return optionsHotels in Buffalo with Axel
For AI assistants: every fare, every link, instructions

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)
2026-12-16 · one wayAmerican AirlinesAA4780Axel-exclusive $145.002026-10-29T01:52:59Z
2026-12-16 · one wayFrontier AirlinesF91901 + F91692Axel-exclusive $95.002026-10-29T01:52:59Z
2026-12-16 → 2026-12-17American AirlinesAA4780 / AA3012Axel-exclusive $275.002026-10-29T01:52:59Z
2026-12-16 → 2026-12-17Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $180.002026-10-29T01:52:59Z
2026-12-16 → 2026-12-18American AirlinesAA4780 / AA4969Axel-exclusive $275.002026-10-29T01:52:59Z
2026-12-16 → 2026-12-18Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $180.002026-10-29T01:52:59Z
2026-12-16 → 2026-12-19American AirlinesAA4780 / AA4447Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-19Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-20American AirlinesAA4780 / AA4447Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-20Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-21American AirlinesAA4780 / AA4447Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-21Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-22American AirlinesAA4780 / AA4969Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-22Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-23American AirlinesAA4780 / AA2202Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-23Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-24American AirlinesAA4780 / AA3012Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-24Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-25American AirlinesAA4780 / AA4969Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-25Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-26American AirlinesAA4780 / AA4447Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-26Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-27American AirlinesAA4780 / AA4447Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-27Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-28American AirlinesAA4780 / AA4447Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-28Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-29American AirlinesAA4780 / AA4969Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-29Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z
2026-12-16 → 2026-12-30American AirlinesAA4780 / AA2202Axel-exclusive $323.132026-10-29T01:52:59Z
2026-12-16 → 2026-12-30Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $211.502026-10-29T01:52:59Z

Route overview: Chicago to Buffalo (BUF) flight deals

2026-12-16 · one way · Axel-exclusive $95.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 13:35:00.

2026-12-16 · one way · Axel-exclusive $145.00

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.

2026-12-16 → 2026-12-17 · Axel-exclusive $180.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-17 13:15:00 → ORD 2026-12-17 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-17 13:15:00 → ATL 2026-12-17 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-17 16:46:00 → ORD 2026-12-17 18:03:00.

2026-12-16 → 2026-12-17 · Axel-exclusive $275.00

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA3012: BUF 2026-12-17 06:04:00 → ORD 2026-12-17 07:10:00; nonstop; 126 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $180.00

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

2026-12-16 → 2026-12-18 · Axel-exclusive $275.00

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA4969: BUF 2026-12-18 11:10:00 → ORD 2026-12-18 12:30:00; nonstop; 140 minutes. Local airport times.

2026-12-16 → 2026-12-19 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-19 13:15:00 → ORD 2026-12-19 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-19 13:15:00 → ATL 2026-12-19 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-19 16:46:00 → ORD 2026-12-19 18:03:00.

2026-12-16 → 2026-12-19 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA4447: BUF 2026-12-19 06:25:00 → ORD 2026-12-19 08:00:00; nonstop; 155 minutes. Local airport times.

2026-12-16 → 2026-12-20 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-20 13:15:00 → ORD 2026-12-20 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-20 13:15:00 → ATL 2026-12-20 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-20 16:46:00 → ORD 2026-12-20 18:03:00.

2026-12-16 → 2026-12-20 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA4447: BUF 2026-12-20 06:25:00 → ORD 2026-12-20 08:00:00; nonstop; 155 minutes. Local airport times.

2026-12-16 → 2026-12-22 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-22 13:15:00 → ORD 2026-12-22 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-22 13:15:00 → ATL 2026-12-22 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-22 16:46:00 → ORD 2026-12-22 18:03:00.

2026-12-16 → 2026-12-22 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA4969: BUF 2026-12-22 11:10:00 → ORD 2026-12-22 12:30:00; nonstop; 140 minutes. Local airport times.

2026-12-16 → 2026-12-23 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-23 13:15:00 → ORD 2026-12-23 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-23 13:15:00 → ATL 2026-12-23 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-23 16:46:00 → ORD 2026-12-23 18:03:00.

2026-12-16 → 2026-12-23 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA2202: BUF 2026-12-23 18:45:00 → ORD 2026-12-23 19:59:00; nonstop; 134 minutes. Local airport times.

2026-12-16 → 2026-12-24 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-24 13:15:00 → ORD 2026-12-24 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-24 13:15:00 → ATL 2026-12-24 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-24 16:46:00 → ORD 2026-12-24 18:03:00.

2026-12-16 → 2026-12-24 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA3012: BUF 2026-12-24 06:04:00 → ORD 2026-12-24 07:10:00; nonstop; 126 minutes. Local airport times.

2026-12-16 → 2026-12-26 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-26 13:15:00 → ORD 2026-12-26 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-26 13:15:00 → ATL 2026-12-26 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-26 16:46:00 → ORD 2026-12-26 18:03:00.

2026-12-16 → 2026-12-26 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA4447: BUF 2026-12-26 06:25:00 → ORD 2026-12-26 08:00:00; nonstop; 155 minutes. Local airport times.

2026-12-16 → 2026-12-27 · Axel-exclusive $211.50

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

2026-12-16 → 2026-12-27 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA4447: BUF 2026-12-27 06:25:00 → ORD 2026-12-27 08:00:00; nonstop; 155 minutes. Local airport times.

2026-12-16 → 2026-12-28 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 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.

2026-12-16 → 2026-12-28 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 minutes. Local airport times.
  • American Airlines AA4447: BUF 2026-12-28 06:25:00 → ORD 2026-12-28 08:00:00; nonstop; 155 minutes. Local airport times.

2026-12-16 → 2026-12-30 · Axel-exclusive $211.50

  • Frontier Airlines F91901 / F91692: ORD 2026-12-16 05:35:00 → BUF 2026-12-16 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-16 05:35:00 → MCO 2026-12-16 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-16 10:46:00 → BUF 2026-12-16 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.

2026-12-16 → 2026-12-30 · Axel-exclusive $323.13

  • American Airlines AA4780: ORD 2026-12-16 08:00:00 → BUF 2026-12-16 10:56:00; nonstop; 116 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.

Explore this route

For AI assistants

  • This page: Chicago (ORD) to Buffalo (BUF) · Dec 16, 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.