Cheap flights from Chicago to Buffalo

Chicago FSS
CHI
Buffalo Niagara
BUF

Flight deals from Chicago to Buffalo

Below you can see the best deals on flights Chicago — Buffalo for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 2 September, from $87.

Top 10 cheap flights from Chicago to Buffalo

F9
F9
$ 87

Chicago — Buffalo

13:59—10:29
2 Sep 2026
19 h 30 m
1 stop
F9
F9
$ 87

Chicago — Buffalo

07:05—10:29
2 Sep 2026
26 h 24 m
1 stop
F9
F9
$ 91

Chicago — Buffalo

07:05—12:55
8 Sep 2026
28 h 50 m
1 stop
F9
F9
$ 92

Chicago — Buffalo

11:50—10:29
2 Sep 2026
21 h 39 m
1 stop
F9
F9
$ 92

Chicago — Buffalo

06:05—10:29
2 Sep 2026
27 h 24 m
1 stop
F9
F9
$ 92

Chicago — Buffalo

13:59—10:29
5 Sep 2026
19 h 30 m
1 stop
F9
F9
$ 95

Chicago — Buffalo

06:25—12:50
12 Sep 2026
5 h 25 m
1 stop
F9
F9
$ 102

Chicago — Buffalo

11:45—10:29
5 Sep 2026
21 h 44 m
1 stop
F9
F9
$ 102

Chicago — Buffalo

06:05—10:29
5 Sep 2026
27 h 24 m
1 stop
F9
F9
$ 103

Chicago — Buffalo

19:28—12:55
10 Sep 2026
16 h 27 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Chicago — Buffalo flight

Looking for cheap flights from Chicago to Buffalo? Compare fares from different airlines, check the flight schedule and travel time — and book your Chicago — Buffalo ticket online at the best price.

The route has direct flights — around 118 flights per week, flights are operated by United Airlines, American Airlines, Alaska Airlines, a nonstop flight takes about 1 h 40 min, the distance between the cities is around 729 km.

Planning your trip? You may find our Buffalo travel guide, how to get from the airport into town and Buffalo weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $75Min. price
NovemberCheapest
JunePeak season
YesDirect flights
729 kmDistance
1 h 40 minTravel time
3Airlines
118 / wkFlights

Flight schedule from Chicago to Buffalo

The table shows direct flights from Chicago to Buffalo on the selected date. The flight takes approximately 1 h 40 min. Regular flights are operated by United Airlines, American Airlines and Alaska Airlines. Departures from O'Hare International Airport, Chicago Midway International Airport and Midway International Airport airports, arrivals at Buffalo Niagara International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 15 Aug 2026

Flight ticket prices by day: Chicago — Buffalo

Below is a calendar of the lowest flight ticket prices for Chicago — Buffalo by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $75 in November, and the most expensive are around $897 in June. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Chicago to Buffalo by month. Tickets are usually cheapest in December (around $123) and priciest in March (about $190) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$133lowMay$166mediumSep$147medium
Feb$142lowJun$156mediumOct$137low
Mar$190highJul$180highNov$133low
Apr$161mediumAug$152mediumDec$123low

Some values are estimated based on seasonality.

When to fly

Weather in Buffalo: it is warmest in July (up to 26 °C on average) and coolest in January (around 1 °C). The driest month is September.

Tickets are usually cheapest in November and most expensive in June. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Buffalo

Dry and wet days · Buffalo

Wind speed and direction · Buffalo

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How to get the best deal on a Chicago — Buffalo ticket

  • Book ahead: fares for Chicago — Buffalo are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Chicago is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Buffalo is usually November — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Chicago — Buffalo route are operated by 3 airlines; United Airlines runs the most flights (around 47% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    18x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight ORD → BUF18x/week
      Duration
      1h 46m
      Days
      MTWTFSS
    46.6%Open →
  • American AirlinesAA
    18x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight ORD → BUF18x/week
      Duration
      1h 43m
      Days
      MTWTFSS
    44.9%Open →
  • Alaska AirlinesAS
    3x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight ORD → BUF3x/week
    8.5%Open →

Cities and airports on the Chicago — Buffalo route

Flights Chicago — Buffalo depart from O'Hare International Airport, Chicago Midway International Airport, Midway International Airport and Chicago Rockford International Airport and arrive at Buffalo Niagara International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Chicago

CHI
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Buffalo

BUF
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Chicago — Buffalo flight

How long is the flight from Chicago to Buffalo?

A nonstop Chicago — Buffalo flight takes about 1 h 40 min — the distance between the cities is around 729 km.

How far is it from Chicago to Buffalo?

The distance from Chicago to Buffalo is about 729 km, which a nonstop flight covers in around 1 h 40 min.

Are there direct flights from Chicago to Buffalo?

Yes, there are nonstop flights Chicago — Buffalo — around 118 flights per week.

Which airlines fly from Chicago to Buffalo?

Airlines operating Chicago — Buffalo include United Airlines, American Airlines, Alaska Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Chicago — Buffalo flights use?

Flights from Chicago depart from O'Hare International Airport, Chicago Midway International Airport, Midway International Airport, and arrive at Buffalo Niagara International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Chicago to Buffalo?

The price of a Chicago — Buffalo ticket depends on your travel date, season and demand: it is usually cheapest to fly in November, and most expensive in June. Tickets typically cost between $75 and $897. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Chicago — Buffalo?

Flights Chicago — Buffalo are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is November. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Chicago to Buffalo?

To catch a low fare Chicago — Buffalo, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually November.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Chicago

See all
New York CityTorontoDetroitWashington, D.C.AtlantaMinneapolisLos AngelesSeattleBostonDallasHoustonOrlandoDenverNashvilleLondonIndianapolisSan DiegoMontrealMilwaukeeSt. LouisCharlottePhiladelphiaColumbusKansas CityMiamiPhoenixLas VegasCincinnatiGrand RapidsDes MoinesRaleighSan FranciscoMadisonDaytonGreen BayTampaPittsburghLouisvilleKnoxvilleRochester

Where else you can fly from Buffalo

See all
New York CityWashington, D.C.BostonDetroitAtlantaPhiladelphiaOrlandoCharlotteDallasMinneapolisDenverLos AngelesFort LauderdaleRaleighTampaFort Myers

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