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Route overview: Chicago to Buffalo (BUF) flight deals

Chicago → Buffalo

Nov 5, 2026 · return Nov 9, 2026

ORD → BUF1 adulteconomyRound trip

6 flight options · 4 airlines

Nonstop flights

Thu, Nov 5 – Mon, Nov 9

American Airlines
8:00 amORD
1h 45m
Nonstop
10:45 amBUF
American Airlines
11:26 amBUF
2h 14m
Nonstop
12:40 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Nov 5 – Mon, Nov 9

United Airlines
6:50 amORD
1h 52m
Nonstop
9:42 amBUF
United Airlines
6:30 amBUF
2h 3m
Nonstop
7:33 amORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Nov 5 – Mon, Nov 9

American Airlines
3:05 pmORD
1h 46m
Nonstop
5:51 pmBUF
American Airlines
11:26 amBUF
2h 14m
Nonstop
12:40 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Nov 5 – Mon, Nov 9

United Airlines
5:59 pmORD
1h 52m
Nonstop
8:51 pmBUF
United Airlines
6:30 amBUF
2h 3m
Nonstop
7:33 amORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Thu, Nov 5 – Mon, Nov 9

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.

Thu, Nov 5 – Mon, Nov 9

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

Availability is checked when you select these flights.

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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  • 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
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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

Explore this route

All dates for this routeNov 4, 2026 · Return optionsNov 6, 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.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-05 → 2026-11-09American AirlinesAA4055 / AA4780Axel-exclusive $275.002026-10-29T01:52:59Z
2026-11-05 → 2026-11-09United AirlinesUA4177 / UA543Axel-exclusive $285.002026-10-29T01:52:59Z
2026-11-05 → 2026-11-09Frontier AirlinesF91901 + F91692 / F91407 + F92197Axel-exclusive $180.002026-10-29T01:52:59Z
2026-11-05 → 2026-11-09Delta Air LinesDL2358 + DL978 / DL1721 + DL3902Axel-exclusive $305.002026-10-29T01:52:59Z
2026-11-05 → 2026-11-09American AirlinesAA874 / AA4780Axel-exclusive $275.002026-10-29T01:52:59Z
2026-11-05 → 2026-11-09United AirlinesUA5443 / UA543Axel-exclusive $285.002026-10-29T01:52:59Z

Route overview: Chicago to Buffalo (BUF) flight deals

2026-11-05 → 2026-11-09 · Axel-exclusive $275.00

  • American Airlines AA4055: ORD 2026-11-05 08:00:00 → BUF 2026-11-05 10:45:00; nonstop; 105 minutes. Local airport times.
  • American Airlines AA4780: BUF 2026-11-09 11:26:00 → ORD 2026-11-09 12:40:00; nonstop; 134 minutes. Local airport times.

2026-11-05 → 2026-11-09 · Axel-exclusive $285.00

  • United Airlines UA4177: ORD 2026-11-05 06:50:00 → BUF 2026-11-05 09:42:00; nonstop; 112 minutes. Local airport times.
  • United Airlines UA543: BUF 2026-11-09 06:30:00 → ORD 2026-11-09 07:33:00; nonstop; 123 minutes. Local airport times.

2026-11-05 → 2026-11-09 · Axel-exclusive $180.00

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

2026-11-05 → 2026-11-09 · Axel-exclusive $305.00

  • Delta Air Lines DL2358 / DL978: ORD 2026-11-05 17:02:00 → BUF 2026-11-06 00:01:00; 1 stop(s) via DTW; 359 minutes. Local airport times.
    • DL2358: ORD 2026-11-05 17:02:00 → DTW 2026-11-05 19:24:00; layover at DTW: 206 minutes.
    • DL978: DTW 2026-11-05 22:50:00 → BUF 2026-11-06 00:01:00.
  • Delta Air Lines DL1721 / DL3902: BUF 2026-11-09 06:35:00 → ORD 2026-11-09 10:59:00; 1 stop(s) via DTW; 324 minutes. Local airport times.
    • DL1721: BUF 2026-11-09 06:35:00 → DTW 2026-11-09 07:52:00; layover at DTW: 148 minutes.
    • DL3902: DTW 2026-11-09 10:20:00 → ORD 2026-11-09 10:59:00.

2026-11-05 → 2026-11-09 · Axel-exclusive $275.00

  • American Airlines AA874: ORD 2026-11-05 15:05:00 → BUF 2026-11-05 17:51:00; nonstop; 106 minutes. Local airport times.
  • American Airlines AA4780: BUF 2026-11-09 11:26:00 → ORD 2026-11-09 12:40:00; nonstop; 134 minutes. Local airport times.

2026-11-05 → 2026-11-09 · Axel-exclusive $285.00

  • United Airlines UA5443: ORD 2026-11-05 17:59:00 → BUF 2026-11-05 20:51:00; nonstop; 112 minutes. Local airport times.
  • United Airlines UA543: BUF 2026-11-09 06:30:00 → ORD 2026-11-09 07:33:00; nonstop; 123 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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For AI assistants

  • This page: Chicago (ORD) to Buffalo (BUF) · Nov 5, 2026 · return Nov 9, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • 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.