Travel with Axel,
get the best price.

Chicago → Buffalo

Choose your travel dates

ORD → BUF1 adulteconomy

18 flight options · 4 airlines

Round-trip flights

Fri, Nov 20 – Mon, Nov 23

American Airlines
8:00 amORD
1h 45m
Nonstop
10:45 amBUF
American Airlines
6:04 amBUF
2h 6m
Nonstop
7:10 amORD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
10:30 amORD
1h 45m
Nonstop
1:15 pmBUF
United Airlines
6:00 amBUF
1h 59m
Nonstop
6:59 amORD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 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

Fri, Nov 20 – Mon, Nov 23

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

Fri, Nov 27 – Fri, Dec 4

American Airlines
8:49 pmORD
1h 44m
Nonstop
11:33 pmBUF
American Airlines
6:49 pmBUF
2h 10m
Nonstop
7:59 pmORD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
8:49 pmORD
1h 44m
Nonstop
11:33 pmBUF
American Airlines
6:04 amBUF
2h 6m
Nonstop
7:10 amORD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
2:02 pmORD
1h 50m
Nonstop
4:52 pmBUF
United Airlines
6:00 amBUF
1h 59m
Nonstop
6:59 amORD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
8:00 amORD
1h 45m
Nonstop
10:45 amBUF
American Airlines
6:49 pmBUF
2h 10m
Nonstop
7:59 pmORD

Round-trip total · 1 adult · Taxes included

Show 4 more flights

Fri, Nov 27 – Fri, Dec 4

United Airlines
2:02 pmORD
1h 50m
Nonstop
4:52 pmBUF
United Airlines
1:53 pmBUF
2h 2m
Nonstop
2:55 pmORD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
10:30 amORD
1h 45m
Nonstop
1:15 pmBUF
United Airlines
1:53 pmBUF
2h 2m
Nonstop
2:55 pmORD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 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

Fri, Nov 27 – Fri, Dec 4

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

One-way flights

Fri, Nov 20 · One way

American Airlines
8:49 pmORD
1h 44m
Nonstop
11:33 pmBUF

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
2:02 pmORD
1h 50m
Nonstop
4:52 pmBUF

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

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

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Delta Air Lines
5:02 pmORD
5h 59m
DTW · 3h 26m
12:01 am+1BUF

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
8:00 amORD
1h 45m
Nonstop
10:45 amBUF

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
10:30 amORD
1h 45m
Nonstop
1:15 pmBUF

One-way 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.
  • 24-hour cancellationCancel within 24 hours of booking for a full refund when your departure is at least 7 days away. Closer to departure, the airline’s fare rules apply. 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

Nov 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)
2026-11-20 · one wayAmerican AirlinesAA564$145.002026-10-29T01:52:59Z
2026-11-20 · one wayUnited AirlinesUA4590$150.002026-10-29T01:52:59Z
2026-11-20 → 2026-11-23American AirlinesAA4055 / AA3012$275.002026-10-29T01:52:59Z
2026-11-20 → 2026-11-23United AirlinesUA4382 / UA543$285.002026-10-29T01:52:59Z
2026-11-20 · one wayFrontier AirlinesF91901 + F91692$95.002026-10-29T01:52:59Z
2026-11-20 · one wayDelta Air LinesDL2358 + DL978$160.002026-10-29T01:52:59Z
2026-11-20 → 2026-11-23Frontier AirlinesF91901 + F91692 / F91407 + F92197$180.002026-10-29T01:52:59Z
2026-11-20 → 2026-11-23Delta Air LinesDL2358 + DL978 / DL1721 + DL3902$305.002026-10-29T01:52:59Z
2026-11-27 → 2026-12-04American AirlinesAA564 / AA2306$330.002026-10-29T01:52:59Z
2026-11-20 · one wayAmerican AirlinesAA4055$145.002026-10-29T01:52:59Z
2026-11-20 · one wayUnited AirlinesUA4382$150.002026-10-29T01:52:59Z
2026-11-20 → 2026-11-23American AirlinesAA564 / AA3012$275.002026-10-29T01:52:59Z
2026-11-20 → 2026-11-23United AirlinesUA4590 / UA543$285.002026-10-29T01:52:59Z
2026-11-27 → 2026-12-04American AirlinesAA4055 / AA2306$330.002026-10-29T01:52:59Z
2026-11-27 → 2026-12-04United AirlinesUA4590 / UA4381$342.002026-10-29T01:52:59Z
2026-11-27 → 2026-12-04United AirlinesUA4382 / UA4381$342.002026-10-29T01:52:59Z
2026-11-27 → 2026-12-04Frontier AirlinesF91901 + F91692 / F91407 + F92197$216.002026-10-29T01:52:59Z
2026-11-27 → 2026-12-04Delta Air LinesDL2358 + DL978 / DL1721 + DL3902$366.002026-10-29T01:52:59Z

2026-11-20 · one way · $145.00

  • American Airlines AA564: ORD 2026-11-20 20:49:00 → BUF 2026-11-20 23:33:00; nonstop; 104 minutes. Local airport times.

2026-11-20 · one way · $150.00

  • United Airlines UA4590: ORD 2026-11-20 14:02:00 → BUF 2026-11-20 16:52:00; nonstop; 110 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $275.00

  • American Airlines AA4055: ORD 2026-11-20 08:00:00 → BUF 2026-11-20 10:45:00; nonstop; 105 minutes. Local airport times.
  • American Airlines AA3012: BUF 2026-11-23 06:04:00 → ORD 2026-11-23 07:10:00; nonstop; 126 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $285.00

  • United Airlines UA4382: ORD 2026-11-20 10:30:00 → BUF 2026-11-20 13:15:00; nonstop; 105 minutes. Local airport times.
  • United Airlines UA543: BUF 2026-11-23 06:00:00 → ORD 2026-11-23 06:59:00; nonstop; 119 minutes. Local airport times.

2026-11-20 · one way · $95.00

  • Frontier Airlines F91901 / F91692: ORD 2026-11-20 05:35:00 → BUF 2026-11-20 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-11-20 05:35:00 → MCO 2026-11-20 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-11-20 10:46:00 → BUF 2026-11-20 13:35:00.

2026-11-20 · one way · $160.00

  • Delta Air Lines DL2358 / DL978: ORD 2026-11-20 17:02:00 → BUF 2026-11-21 00:01:00; 1 stop(s) via DTW; 359 minutes. Local airport times.
    • DL2358: ORD 2026-11-20 17:02:00 → DTW 2026-11-20 19:24:00; layover at DTW: 206 minutes.
    • DL978: DTW 2026-11-20 22:50:00 → BUF 2026-11-21 00:01:00.

2026-11-20 → 2026-11-23 · $180.00

  • Frontier Airlines F91901 / F91692: ORD 2026-11-20 05:35:00 → BUF 2026-11-20 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-11-20 05:35:00 → MCO 2026-11-20 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-11-20 10:46:00 → BUF 2026-11-20 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-11-23 13:15:00 → ORD 2026-11-23 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-11-23 13:15:00 → ATL 2026-11-23 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-11-23 16:46:00 → ORD 2026-11-23 18:03:00.

2026-11-20 → 2026-11-23 · $305.00

  • Delta Air Lines DL2358 / DL978: ORD 2026-11-20 17:02:00 → BUF 2026-11-21 00:01:00; 1 stop(s) via DTW; 359 minutes. Local airport times.
    • DL2358: ORD 2026-11-20 17:02:00 → DTW 2026-11-20 19:24:00; layover at DTW: 206 minutes.
    • DL978: DTW 2026-11-20 22:50:00 → BUF 2026-11-21 00:01:00.
  • Delta Air Lines DL1721 / DL3902: BUF 2026-11-23 06:35:00 → ORD 2026-11-23 10:59:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL1721: BUF 2026-11-23 06:35:00 → DTW 2026-11-23 07:52:00; layover at DTW: 148 minutes.
    • DL3902: DTW 2026-11-23 10:20:00 → ORD 2026-11-23 10:59:00.

2026-11-27 → 2026-12-04 · $330.00

  • American Airlines AA564: ORD 2026-11-27 20:49:00 → BUF 2026-11-27 23:33:00; nonstop; 104 minutes. Local airport times.
  • American Airlines AA2306: BUF 2026-12-04 18:49:00 → ORD 2026-12-04 19:59:00; nonstop; 130 minutes. Local airport times.

2026-11-20 · one way · $145.00

  • American Airlines AA4055: ORD 2026-11-20 08:00:00 → BUF 2026-11-20 10:45:00; nonstop; 105 minutes. Local airport times.

2026-11-20 · one way · $150.00

  • United Airlines UA4382: ORD 2026-11-20 10:30:00 → BUF 2026-11-20 13:15:00; nonstop; 105 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $275.00

  • American Airlines AA564: ORD 2026-11-20 20:49:00 → BUF 2026-11-20 23:33:00; nonstop; 104 minutes. Local airport times.
  • American Airlines AA3012: BUF 2026-11-23 06:04:00 → ORD 2026-11-23 07:10:00; nonstop; 126 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $285.00

  • United Airlines UA4590: ORD 2026-11-20 14:02:00 → BUF 2026-11-20 16:52:00; nonstop; 110 minutes. Local airport times.
  • United Airlines UA543: BUF 2026-11-23 06:00:00 → ORD 2026-11-23 06:59:00; nonstop; 119 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $330.00

  • American Airlines AA4055: ORD 2026-11-27 08:00:00 → BUF 2026-11-27 10:45:00; nonstop; 105 minutes. Local airport times.
  • American Airlines AA2306: BUF 2026-12-04 18:49:00 → ORD 2026-12-04 19:59:00; nonstop; 130 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $342.00

  • United Airlines UA4590: ORD 2026-11-27 14:02:00 → BUF 2026-11-27 16:52:00; nonstop; 110 minutes. Local airport times.
  • United Airlines UA4381: BUF 2026-12-04 13:53:00 → ORD 2026-12-04 14:55:00; nonstop; 122 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $342.00

  • United Airlines UA4382: ORD 2026-11-27 10:30:00 → BUF 2026-11-27 13:15:00; nonstop; 105 minutes. Local airport times.
  • United Airlines UA4381: BUF 2026-12-04 13:53:00 → ORD 2026-12-04 14:55:00; nonstop; 122 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $216.00

  • Frontier Airlines F91901 / F91692: ORD 2026-11-27 05:35:00 → BUF 2026-11-27 13:35:00; 1 stop(s) via MCO; 420 minutes. Local airport times.
    • F91901: ORD 2026-11-27 05:35:00 → MCO 2026-11-27 09:29:00; layover at MCO: 77 minutes.
    • F91692: MCO 2026-11-27 10:46:00 → BUF 2026-11-27 13:35:00.
  • Frontier Airlines F91407 / F92197: BUF 2026-12-04 13:15:00 → ORD 2026-12-04 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-12-04 13:15:00 → ATL 2026-12-04 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-12-04 16:46:00 → ORD 2026-12-04 18:03:00.

2026-11-27 → 2026-12-04 · $366.00

  • Delta Air Lines DL2358 / DL978: ORD 2026-11-27 17:02:00 → BUF 2026-11-28 00:01:00; 1 stop(s) via DTW; 359 minutes. Local airport times.
    • DL2358: ORD 2026-11-27 17:02:00 → DTW 2026-11-27 19:24:00; layover at DTW: 206 minutes.
    • DL978: DTW 2026-11-27 22:50:00 → BUF 2026-11-28 00:01:00.
  • Delta Air Lines DL1721 / DL3902: BUF 2026-12-04 06:35:00 → ORD 2026-12-04 10:59:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL1721: BUF 2026-12-04 06:35:00 → DTW 2026-12-04 07:52:00; layover at DTW: 148 minutes.
    • DL3902: DTW 2026-12-04 10:20:00 → ORD 2026-12-04 10:59:00.

More dates for this route