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Buffalo → Chicago

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BUF → ORD1 adulteconomy

18 flight options · 4 airlines

Round-trip flights

Fri, Nov 20 – Mon, Nov 23

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

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
6:30 amBUF
2h 14m
Nonstop
7:44 amORD
United Airlines
5:51 pmORD
1h 45m
Nonstop
8:36 pmBUF

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

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

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

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

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

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

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
11:10 amBUF
2h 20m
Nonstop
12:30 pmORD
American Airlines
7:00 pmORD
1h 37m
Nonstop
9:37 pmBUF

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
1:53 pmBUF
2h 2m
Nonstop
2:55 pmORD
United Airlines
5:51 pmORD
1h 45m
Nonstop
8:36 pmBUF

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
11:10 amBUF
2h 20m
Nonstop
12:30 pmORD
American Airlines
8:49 pmORD
1h 44m
Nonstop
11:33 pmBUF

Round-trip total · 1 adult · Taxes included

Show 4 more flights

Fri, Nov 27 – Fri, Dec 4

United Airlines
6:30 amBUF
2h 14m
Nonstop
7:44 amORD
United Airlines
2:02 pmORD
1h 50m
Nonstop
4:52 pmBUF

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

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

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

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

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

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

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

American Airlines
6:49 pmBUF
2h 10m
Nonstop
7:59 pmORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
6:30 amBUF
2h 14m
Nonstop
7:44 amORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Frontier Airlines
1:15 pmBUF
5h 48m
ATL · 1h 10m
6:03 pmORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Delta Air Lines
6:35 amBUF
5h 24m
DTW · 2h 28m
10:59 amORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
11:10 amBUF
2h 20m
Nonstop
12:30 pmORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
1:53 pmBUF
2h 2m
Nonstop
2:55 pmORD

One-way total · 1 adult · Taxes included

Make this trip yours

BUF ⇄ ORD

Economy

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

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  • 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
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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 AirlinesAA2306$155.002026-10-29T00:54:21Z
2026-11-20 · one wayUnited AirlinesUA5288$160.002026-10-29T00:54:21Z
2026-11-20 → 2026-11-23American AirlinesAA2306 / AA1073$290.002026-10-29T00:54:21Z
2026-11-20 → 2026-11-23United AirlinesUA5288 / UA1335$300.002026-10-29T00:54:21Z
2026-11-20 · one wayFrontier AirlinesF91407 + F92197$95.002026-10-29T00:54:21Z
2026-11-20 → 2026-11-23Frontier AirlinesF91407 + F92197 / F91901 + F91692$180.002026-10-29T00:54:21Z
2026-11-20 · one wayDelta Air LinesDL1721 + DL3902$180.002026-10-29T00:54:21Z
2026-11-20 → 2026-11-23Delta Air LinesDL1721 + DL3902 / DL2358 + DL978$340.002026-10-29T00:54:21Z
2026-11-27 → 2026-12-04American AirlinesAA2306 / AA564$340.752026-10-29T00:54:21Z
2026-11-20 · one wayAmerican AirlinesAA4969$155.002026-10-29T00:54:21Z
2026-11-20 · one wayUnited AirlinesUA4381$160.002026-10-29T00:54:21Z
2026-11-20 → 2026-11-23American AirlinesAA4969 / AA1073$290.002026-10-29T00:54:21Z
2026-11-20 → 2026-11-23United AirlinesUA4381 / UA1335$300.002026-10-29T00:54:21Z
2026-11-27 → 2026-12-04American AirlinesAA4969 / AA564$340.752026-10-29T00:54:21Z
2026-11-27 → 2026-12-04United AirlinesUA5288 / UA4590$352.502026-10-29T00:54:21Z
2026-11-27 → 2026-12-04United AirlinesUA4381 / UA4590$352.502026-10-29T00:54:21Z
2026-11-27 → 2026-12-04Frontier AirlinesF91407 + F92197 / F91901 + F91692$211.502026-10-29T00:54:21Z
2026-11-27 → 2026-12-04Delta Air LinesDL1721 + DL3902 / DL2358 + DL978$399.502026-10-29T00:54:21Z

2026-11-20 · one way · $155.00

  • American Airlines AA2306: BUF 2026-11-20 18:49:00 → ORD 2026-11-20 19:59:00; nonstop; 130 minutes. Local airport times.

2026-11-20 · one way · $160.00

  • United Airlines UA5288: BUF 2026-11-20 06:30:00 → ORD 2026-11-20 07:44:00; nonstop; 134 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $290.00

  • American Airlines AA2306: BUF 2026-11-20 18:49:00 → ORD 2026-11-20 19:59:00; nonstop; 130 minutes. Local airport times.
  • American Airlines AA1073: ORD 2026-11-23 19:00:00 → BUF 2026-11-23 21:37:00; nonstop; 97 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $300.00

  • United Airlines UA5288: BUF 2026-11-20 06:30:00 → ORD 2026-11-20 07:44:00; nonstop; 134 minutes. Local airport times.
  • United Airlines UA1335: ORD 2026-11-23 17:51:00 → BUF 2026-11-23 20:36:00; nonstop; 105 minutes. Local airport times.

2026-11-20 · one way · $95.00

  • Frontier Airlines F91407 / F92197: BUF 2026-11-20 13:15:00 → ORD 2026-11-20 18:03:00; 1 stop(s) via ATL; 348 minutes. Local airport times.
    • F91407: BUF 2026-11-20 13:15:00 → ATL 2026-11-20 15:36:00; layover at ATL: 70 minutes.
    • F92197: ATL 2026-11-20 16:46:00 → ORD 2026-11-20 18:03:00.

2026-11-20 → 2026-11-23 · $180.00

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

2026-11-20 · one way · $180.00

  • Delta Air Lines DL1721 / DL3902: BUF 2026-11-20 06:35:00 → ORD 2026-11-20 10:59:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL1721: BUF 2026-11-20 06:35:00 → DTW 2026-11-20 07:52:00; layover at DTW: 148 minutes.
    • DL3902: DTW 2026-11-20 10:20:00 → ORD 2026-11-20 10:59:00.

2026-11-20 → 2026-11-23 · $340.00

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

2026-11-27 → 2026-12-04 · $340.75

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

2026-11-20 · one way · $155.00

  • American Airlines AA4969: BUF 2026-11-20 11:10:00 → ORD 2026-11-20 12:30:00; nonstop; 140 minutes. Local airport times.

2026-11-20 · one way · $160.00

  • United Airlines UA4381: BUF 2026-11-20 13:53:00 → ORD 2026-11-20 14:55:00; nonstop; 122 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $290.00

  • American Airlines AA4969: BUF 2026-11-20 11:10:00 → ORD 2026-11-20 12:30:00; nonstop; 140 minutes. Local airport times.
  • American Airlines AA1073: ORD 2026-11-23 19:00:00 → BUF 2026-11-23 21:37:00; nonstop; 97 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $300.00

  • United Airlines UA4381: BUF 2026-11-20 13:53:00 → ORD 2026-11-20 14:55:00; nonstop; 122 minutes. Local airport times.
  • United Airlines UA1335: ORD 2026-11-23 17:51:00 → BUF 2026-11-23 20:36:00; nonstop; 105 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $340.75

  • American Airlines AA4969: BUF 2026-11-27 11:10:00 → ORD 2026-11-27 12:30:00; nonstop; 140 minutes. Local airport times.
  • American Airlines AA564: ORD 2026-12-04 20:49:00 → BUF 2026-12-04 23:33:00; nonstop; 104 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $352.50

  • United Airlines UA5288: BUF 2026-11-27 06:30:00 → ORD 2026-11-27 07:44:00; nonstop; 134 minutes. Local airport times.
  • United Airlines UA4590: ORD 2026-12-04 14:02:00 → BUF 2026-12-04 16:52:00; nonstop; 110 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $352.50

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

2026-11-27 → 2026-12-04 · $211.50

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

2026-11-27 → 2026-12-04 · $399.50

  • Delta Air Lines DL1721 / DL3902: BUF 2026-11-27 06:35:00 → ORD 2026-11-27 10:59:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL1721: BUF 2026-11-27 06:35:00 → DTW 2026-11-27 07:52:00; layover at DTW: 148 minutes.
    • DL3902: DTW 2026-11-27 10:20:00 → ORD 2026-11-27 10:59:00.
  • Delta Air Lines DL2358 / DL978: ORD 2026-12-04 17:02:00 → BUF 2026-12-05 00:01:00; 1 stop(s) via DTW; 359 minutes. Local airport times.
    • DL2358: ORD 2026-12-04 17:02:00 → DTW 2026-12-04 19:24:00; layover at DTW: 206 minutes.
    • DL978: DTW 2026-12-04 22:50:00 → BUF 2026-12-05 00:01:00.

More dates for this route