Travel with Axel,
get the best price.

Chicago → Buffalo

Dec 21, 2026 · return Dec 22, 2026

ORD → BUF1 adulteconomyRound trip

6 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Tue, Dec 22

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

Mon, Dec 21 – Tue, Dec 22

United Airlines
10:30 amORD
1h 47m
Nonstop
1:17 pmBUF
United Airlines
10:30 amBUF
2h 2m
Nonstop
11:32 amORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Tue, Dec 22

American Airlines
3:26 pmORD
1h 43m
Nonstop
6:09 pmBUF
American Airlines
7:57 amBUF
2h 8m
Nonstop
9:05 amORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Tue, Dec 22

United Airlines
5:51 pmORD
1h 45m
Nonstop
8:36 pmBUF
United Airlines
10:30 amBUF
2h 2m
Nonstop
11:32 amORD

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – 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

Mon, Dec 21 – Tue, Dec 22

Delta Air Lines
5:02 pmORD
5h 59m
DTW · 3h 26m
12:01 am+1BUF
Delta Air Lines
6:35 amBUF
5h 24m
DTW · 2h 28m
10:59 amORD

Round-trip total · 1 adult · Taxes included

Make this trip yours

ORD ⇄ BUF

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, American Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2026-12-22American AirlinesAA1073 / AA2359$371.262026-10-29T01:52:59Z
2026-12-21 → 2026-12-22United AirlinesUA4382 / UA4619$384.762026-10-29T01:52:59Z
2026-12-21 → 2026-12-22Frontier AirlinesF91901 + F91692 / F91407 + F92197$243.002026-10-29T01:52:59Z
2026-12-21 → 2026-12-22Delta Air LinesDL2358 + DL978 / DL1721 + DL3902$411.762026-10-29T01:52:59Z
2026-12-21 → 2026-12-22American AirlinesAA2306 / AA2359$371.262026-10-29T01:52:59Z
2026-12-21 → 2026-12-22United AirlinesUA1335 / UA4619$384.762026-10-29T01:52:59Z

2026-12-21 → 2026-12-22 · $371.26

  • American Airlines AA1073: ORD 2026-12-21 19:00:00 → BUF 2026-12-21 21:37:00; nonstop; 97 minutes. Local airport times.
  • American Airlines AA2359: BUF 2026-12-22 07:57:00 → ORD 2026-12-22 09:05:00; nonstop; 128 minutes. Local airport times.

2026-12-21 → 2026-12-22 · $384.76

  • United Airlines UA4382: ORD 2026-12-21 10:30:00 → BUF 2026-12-21 13:17:00; nonstop; 107 minutes. Local airport times.
  • United Airlines UA4619: BUF 2026-12-22 10:30:00 → ORD 2026-12-22 11:32:00; nonstop; 122 minutes. Local airport times.

2026-12-21 → 2026-12-22 · $243.00

  • Frontier Airlines F91901 / F91692: ORD 2026-12-21 05:35:00 → BUF 2026-12-21 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-12-21 05:35:00 → MCO 2026-12-21 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-12-21 10:46:00 → BUF 2026-12-21 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.

2026-12-21 → 2026-12-22 · $411.76

  • Delta Air Lines DL2358 / DL978: ORD 2026-12-21 17:02:00 → BUF 2026-12-22 00:01:00; 1 stop(s) via DTW; 359 minutes. Local airport times.
    • DL2358: ORD 2026-12-21 17:02:00 → DTW 2026-12-21 19:24:00; layover at DTW: 206 minutes.
    • DL978: DTW 2026-12-21 22:50:00 → BUF 2026-12-22 00:01:00.
  • Delta Air Lines DL1721 / DL3902: BUF 2026-12-22 06:35:00 → ORD 2026-12-22 10:59:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL1721: BUF 2026-12-22 06:35:00 → DTW 2026-12-22 07:52:00; layover at DTW: 148 minutes.
    • DL3902: DTW 2026-12-22 10:20:00 → ORD 2026-12-22 10:59:00.

2026-12-21 → 2026-12-22 · $371.26

  • American Airlines AA2306: ORD 2026-12-21 15:26:00 → BUF 2026-12-21 18:09:00; nonstop; 103 minutes. Local airport times.
  • American Airlines AA2359: BUF 2026-12-22 07:57:00 → ORD 2026-12-22 09:05:00; nonstop; 128 minutes. Local airport times.

2026-12-21 → 2026-12-22 · $384.76

  • United Airlines UA1335: ORD 2026-12-21 17:51:00 → BUF 2026-12-21 20:36:00; nonstop; 105 minutes. Local airport times.
  • United Airlines UA4619: BUF 2026-12-22 10:30:00 → ORD 2026-12-22 11:32:00; nonstop; 122 minutes. Local airport times.

More dates for this route