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Flights from Chicago to Buffalo

Search for direct flights from Chicago to Buffalo in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$124, and round-trip direct flights start at US$259.

      • Cheapest nonstop
        ORD 18:17
        1h 46m
        Nonstop
        BUF 21:03
        Chicago - Buffalo | Fri, Jun 12 | United Airlines
        BUF 18:04
        1h 59m
        Nonstop
        ORD 19:03
        Buffalo - Chicago | Fri, Jun 19 | United Airlines
        US$259 US$324
        20% off
        20% off
        US$324 US$259
      • ORD 22:01
        1h 37m
        Nonstop
        BUF 00:38
        Chicago - Buffalo | Fri, Jun 12 | American Airlines
        BUF 10:01
        2h 7m
        Nonstop
        ORD 11:08
        Buffalo - Chicago | Fri, Jun 19 | American Airlines
        US$266 US$324
        18% off
        18% off
        US$324 US$266
      • ORD 06:55
        6h
        1 stop
        BUF 13:55
        Chicago - Buffalo | Sun, Jul 5 | Frontier Airlines
        BUF 21:02
        13h 9m
        1 stop
        ORD 09:11
        Buffalo - Chicago | Thu, Jul 9 | Frontier Airlines
        US$216 US$324
        33% off
        33% off
        US$324 US$216
      • ORD 06:40
        1h 49m
        Nonstop
        BUF 09:29
        Chicago - Buffalo | Sun, Jun 14 | American Airlines
        BUF 14:50
        8h 21m
        1 stop
        MDW 22:11
        Buffalo - Chicago | Sun, Jun 21 | Frontier Airlines
        US$228
        30% off
        US$324 US$228
      • ORD 16:59
        25h 13m
        1 stop
        BUF 19:12
        Chicago - Buffalo | Sun, Jun 14 | Frontier Airlines
        BUF 14:50
        8h 21m
        1 stop
        MDW 22:11
        Buffalo - Chicago | Sun, Jun 21 | Frontier Airlines
        US$240
        26% off
        US$324 US$240
      • ORD 10:48
        7h 41m
        1 stop
        BUF 19:29
        Chicago - Buffalo | Mon, Jun 15 | Jetblue Airways
        BUF 13:31
        6h 54m
        1 stop
        ORD 19:25
        Buffalo - Chicago | Sun, Jun 21 | Jetblue Airways
        US$251
        23% off
        US$324 US$251
      • ORD 06:40
        1h 49m
        Nonstop
        BUF 09:29
        Chicago - Buffalo | Sun, Jul 5 | American Airlines
        BUF 21:02
        13h 9m
        1 stop
        ORD 09:11
        Buffalo - Chicago | Thu, Jul 9 | Frontier Airlines
        US$253
        22% off
        US$324 US$253
      • ORD 06:55
        6h
        1 stop
        BUF 13:55
        Chicago - Buffalo | Sun, Jun 21 | Frontier Airlines
        BUF 14:50
        6h
        1 stop
        ORD 19:50
        Buffalo - Chicago | Sun, Jun 28 | Frontier Airlines
        US$254
        22% off
        US$324 US$254
      • ORD 18:17
        1h 46m
        Nonstop
        BUF 21:03
        Chicago - Buffalo | Sun, Jun 14 | United Airlines
        BUF 14:50
        8h 21m
        1 stop
        MDW 22:11
        Buffalo - Chicago | Sun, Jun 21 | Frontier Airlines
        US$258
        20% off
        US$324 US$258
      • ORD 07:05
        5h 48m
        1 stop
        BUF 13:53
        Chicago - Buffalo | Tue, Jul 14 | Frontier Airlines
        BUF 11:35
        11h 33m
        1 stop
        MDW 22:08
        Buffalo - Chicago | Mon, Jul 20 | Frontier Airlines
        US$261
        19% off
        US$324 US$261
      • ORD 17:13
        24h 53m
        1 stop
        BUF 19:06
        Chicago - Buffalo | Thu, Jul 30 | Frontier Airlines
        BUF 21:29
        12h 42m
        1 stop
        ORD 09:11
        Buffalo - Chicago | Mon, Aug 3 | Frontier Airlines
        US$272
        16% off
        US$324 US$272
      • CHI 13:00
        17h 25m
        1 stop
        BUF 14:00
        Chicago - Buffalo | Thu, Jun 11 | Normal Airline
        BUF 15:00
        6h
        Nonstop
        CHI 16:00
        Buffalo - Chicago | Sat, Jun 13 | Normal Airline
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      • Cheapest nonstop
        ORD 22:01
        1h 37m
        Nonstop
        BUF 00:38
        Chicago - Buffalo | Wed, Jul 1 | American Airlines
        US$124 US$156
        21% off
        21% off
        US$156 US$124
      • ORD 22:01
        1h 37m
        Nonstop
        BUF 00:38
        Chicago - Buffalo | Thu, Jun 18 | American Airlines
        US$131 US$156
        16% off
        16% off
        US$156 US$131
      • ORD 10:56
        7h 19m
        1 stop
        BUF 19:15
        Chicago - Buffalo | Thu, Jun 25 | Jetblue Airways
        US$110 US$156
        28% off
        28% off
        US$156 US$110
      • MDW 06:00
        6h 55m
        1 stop
        BUF 13:55
        Chicago - Buffalo | Wed, Jul 1 | Frontier Airlines
        US$114
        27% off
        US$156 US$114
      • ORD 06:55
        6h
        1 stop
        BUF 13:55
        Chicago - Buffalo | Fri, Jul 3 | Frontier Airlines
        US$116
        26% off
        US$156 US$116
      • ORD 10:16
        7h 50m
        1 stop
        BUF 19:06
        Chicago - Buffalo | Sun, Jul 19 | Frontier Airlines
        US$117
        25% off
        US$156 US$117
      • ORD 06:55
        6h
        1 stop
        BUF 13:55
        Chicago - Buffalo | Fri, Jun 26 | Frontier Airlines
        US$117
        25% off
        US$156 US$117
      • MDW 06:00
        6h 55m
        1 stop
        BUF 13:55
        Chicago - Buffalo | Fri, Jun 19 | Frontier Airlines
        US$118
        24% off
        US$156 US$118
      • MDW 06:05
        6h 48m
        1 stop
        BUF 13:53
        Chicago - Buffalo | Fri, Jul 10 | Frontier Airlines
        US$118
        24% off
        US$156 US$118
      • ORD 07:05
        5h 48m
        1 stop
        BUF 13:53
        Chicago - Buffalo | Fri, Aug 7 | Frontier Airlines
        US$119
        24% off
        US$156 US$119
      • MDW 06:00
        6h 53m
        1 stop
        BUF 13:53
        Chicago - Buffalo | Sun, Jul 12 | Frontier Airlines
        US$120
        23% off
        US$156 US$120
      • ORD 06:55
        6h
        1 stop
        BUF 13:55
        Chicago - Buffalo | Fri, Jun 12 | Frontier Airlines
        US$120
        23% off
        US$156 US$120
      • CHI 13:00
        17h 25m
        1 stop
        BUF 14:00
        Chicago - Buffalo | Thu, Jun 11 | Normal Airline
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Displayed flight fares from Chicago to Buffalo are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Chicago to Buffalo Flight Details

The distance between Chicago and Buffalo is about 740.49 km. The average flying time from Chicago to Buffalo is around 1 hour 40 minutes. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is October.

Cheapest one-way flight priceUS$110
Cheapest return ticket priceUS$216
Cheapest monthOctober
Peak season for travelJanuary
Flight distance740.49 km
Average flight time1 hour 40 minutes
Flight statistics for the Chicago–Buffalo route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Chicago to Buffalo (CHI-BUF)?

    Based on Trip.com data, Jetblue Airways offers one-way fares as low as US$110 on Cheapest nonstop routes (e.g. ORD to BUF on Thu, Jun 25), while Frontier Airlines offers Cheapest nonstop round-trips from US$216 departing on Sun, Jul 5 and returning on Thu, Jul 9.
  • It takes about 1 hour 40 minutes to fly from Chicago to Buffalo.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Buffalo is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Chicago to Buffalo, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Jun 25, with one-way flights priced at just US$110.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Buffalo travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Chicago to Buffalo is October, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Chicago to Buffalo on June 30, 2026 with Jetblue Airways, with prices starting at US$86.
  • You can land at any one of the following hubs in Buffalo, with Chicago Midway International Airport to Buffalo Niagara International Airport (MDW-BUF) is by far the most common option on this route: Buffalo Niagara International Airport (BUF).
  • The time difference between Buffalo and Chicago is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Chicago to Buffalo

Which airline offers the cheapest direct flights from Chicago to Buffalo?

Data is based on the average price of all nonstop flights from Chicago to Buffalo on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Jetblue Airways provides the lowest-priced direct flights from Chicago to Buffalo, with fares starting at US$158.

US$102
US$158
US$214
US$270
US$326
Jetblue Airways
US$158
Jetblue Airways
Delta Air Lines
US$167
Delta Air Lines
American Airlines
US$225
American Airlines
Frontier Airlines
US$232
Frontier Airlines
United Airlines
US$326
United Airlines

Which airline operates the most flights from Chicago to Buffalo?

Total flights from Chicago to Buffalo across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, Air New Zealand/Air Canada/United Airlines operates the most frequent flights from Chicago to Buffalo, with 31 flights per week.

30
31
Air New Zealand
31
Air New Zealand
Air Canada
31
Air Canada
United Airlines
31
United Airlines
Alaska Airlines
30
Alaska Airlines
American Airlines
30
American Airlines

How many flights fly from Chicago to Buffalo daily?

The data is based on the flight numbers for each day of the week from Chicago to Buffalo within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Chicago to Buffalo is the highest on Friday and the lowest on Tuesday.

182
164
145
127
Highest
148
Mon
145
Tue
150
Wed
148
Thu
182
Fri
178
Sat
170
Sun

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.