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Cheap flights from Chicago to Buffalo from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Buffalo departing on 6/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Chicago to Buffalo

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Buffalo.
Southwest Logo
7:55 am - 10:25 amMDW-BUF
1h 30mnonstop
Southwest Logo
8:30 pm - 9:10 pmBUF-MDW
1h 40mnonstop
$77Southwest
Find Deal
jue., jun. 5 - lun., jun. 9
United Airlines Logo
7:25 am - 10:12 amORD-BUF
1h 47mnonstop
United Airlines Logo
5:57 pm - 6:55 pmBUF-ORD
1h 58mnonstop
$77United Airlines
Find Deal
mar., may. 13 - mar., may. 13
Southwest Logo
7:55 am - 10:25 amMDW-BUF
1h 30mnonstop
Southwest Logo
3:40 pm - 9:40 pmBUF-MDW
7h 00m1 stop
$87Southwest
Find Deal
jue., jun. 5 - lun., jun. 9
American Airlines Logo
8:35 pm - 11:27 pmORD-BUF
1h 52mnonstop
American Airlines Logo
12:26 pm - 1:24 pmBUF-ORD
1h 58mnonstop
$91American Airlines
Find Deal
jue., jul. 3 - mar., jul. 8
United Airlines Logo
6:20 pm - 9:01 pmORD-BUF
1h 41mnonstop
United Airlines Logo
5:51 pm - 6:47 pmBUF-ORD
1h 56mnonstop
$137United Airlines
Find Deal
mar., jun. 3 - mar., jun. 10
Frontier Logo
6:55 am - 7:37 pmORD-BUF
11h 42m1 stop
Frontier Logo
3:51 pm - 11:11 pmBUF-ORD
8h 20m1 stop
$160Frontier
Find Deal
lun., may. 12 - jue., may. 15
Frontier Logo
4:15 pm - 9:01 amORD-BUF
15h 46m1 stop
Frontier Logo
9:51 am - 11:32 pmBUF-ORD
14h 41m1 stop
$165Frontier
Find Deal
jue., may. 15 - lun., may. 19
Delta Logo
4:15 pm - 11:55 pmMDW-BUF
6h 40m1 stop
Delta Logo
9:02 am - 12:29 pmBUF-MDW
4h 27m1 stop
$177Delta
Find Deal
jue., jun. 5 - lun., jun. 9
Delta Logo
6:00 am - 2:19 pmORD-BUF
7h 19m1 stop
Delta Logo
6:35 pm - 11:58 pmBUF-ORD
6h 23m1 stop
$177Delta
Find Deal
mar., may. 13 - mar., may. 13
American Airlines Logo
12:49 pm - 10:21 pmORD-BUF
8h 32m1 stop
American Airlines Logo
8:02 am - 8:56 amBUF-ORD
1h 54mnonstop
$208American Airlines
Find Deal
mar., sep. 23 - mar., sep. 30

United Airlines flights from Chicago to Buffalo

Our best United Airlines deals on Chicago to Buffalo flight tickets
United Airlines
May 13
ORD7:25 amChicago O'Hare Intl
1h 47m
BUF10:12 amBuffalo
May 13
BUF5:57 pmBuffalo
1h 58m
ORD6:55 pmChicago O'Hare Intl
United Airlines
Jun 3
ORD6:20 pmChicago O'Hare Intl
1h 41m
BUF9:01 pmBuffalo
Jun 10
BUF5:51 pmBuffalo
1h 56m
ORD6:47 pmChicago O'Hare Intl
United Airlines
Jun 5
ORD6:20 pmChicago O'Hare Intl
1h 41m
BUF9:01 pmBuffalo
Jun 9
BUF7:00 amBuffalo
1h 56m
ORD7:56 amChicago O'Hare Intl

American Airlines flights from Chicago to Buffalo

Our best American Airlines deals on Chicago to Buffalo flight tickets
American Airlines
Jul 3
ORD8:35 pmChicago O'Hare Intl
1h 52m
BUF11:27 pmBuffalo
Jul 8
BUF12:26 pmBuffalo
1h 58m
ORD1:24 pmChicago O'Hare Intl
American Airlines
Sep 23
ORD12:49 pmChicago O'Hare Intl
8h 32m
1 stop
BUF10:21 pmBuffalo
Sep 30
BUF8:02 amBuffalo
1h 54m
ORD8:56 amChicago O'Hare Intl
American Airlines
May 13
ORD7:05 amChicago O'Hare Intl
1h 36m
BUF9:41 amBuffalo
May 13
BUF7:11 pmBuffalo
6h 00m
1 stop
ORD12:11 amChicago O'Hare Intl

See travel insights to Buffalo from

How to get the cheapest flight ticket from Chicago to Buffalo

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago and Buffalo?

What is the cheapest month to fly to Buffalo?

If you aren’t able to travel during the month of August, then book flights to Buffalo from Chicago during September instead. Flights to Buffalo in September, while not as cheap as those in August, still average around $300.

What is the cheapest day to depart on your flight to Buffalo?

Our data shows that Wednesday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $316. Flights from Chicago to Buffalo on a Sunday will generally be more expensive and average around $364. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Buffalo?

In the evening is the cheapest time of day to fly from Chicago to Buffalo when you can find flight prices for as low as $317. Flying to Buffalo in the evening is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Buffalo, so prices are often more expensive at around $352 per ticket.

What is the cheapest Chicago to Buffalo flight route?

Fly from Chicago O'Hare Intl to Buffalo for the best Chicago - Buffalo flight prices

How far in advance should I book a flight to Buffalo?

You are more likely to see cheaper flights to Buffalo from Chicago when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $340 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buffalo from Chicago for as low as $239 on momondo.

What cabin class options are available on Chicago to Buffalo flights?

There are 4 cabin classes available to choose from on Chicago to Buffalo flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago to Buffalo flight prices changed over time?

As of April 2025, prices for Chicago to Buffalo flights are approximately 6% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Buffalo

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Buffalo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Buffalo (CHI to BUF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Buffalo

Best Price Found

$39

Fastest flight time

1h 25m

Direct flights

Every day

Airports in Buffalo

1 airport
The best one-way flight to Buffalo from Chicago in the past 72 hours is $39. The best round-trip flight deal from Chicago to Buffalo found on momondo in the last 72 hours is $77.
The fastest flight from Chicago to Buffalo takes 1h 25m
Direct flights go from Chicago to Buffalo every day.
There is 1 airport near Buffalo: Buffalo (BUF)

  • How far is Chicago to Buffalo by plane?

    A flight from Chicago to Buffalo will travel around 451.4 mi. In terms of flight time, this usually takes a little over 1h 25m.

  • When did momondo last update prices for flights from Chicago to Buffalo Airport?

    Prices for flights from Chicago to Buffalo Airport are updated daily.

  • How many operators does momondo search for flights from Chicago to Buffalo Airport?

  • How old do you have to be to fly from Chicago to Buffalo Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Buffalo Airport.

  • What documentation or ID do you need to fly to Buffalo Airport?

    The travel and health documents you'll need for your trip to Buffalo Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buffalo Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to Buffalo?

  • What is the most popular airline from Chicago to Buffalo?


Best airlines flying from Chicago to Buffalo

Compare and see reviews for airlines that fly from Chicago to Buffalo with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $101Free CancellationRating
5.9
3,283 reviews
Search Frontier flights
American AirlinesPriceFrom $178Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,286 reviews
Search Southwest flights
United AirlinesPriceFrom $229Free CancellationRating
7.4
8,684 reviews
Search United Airlines flights
  • Southwest Flights From Chicago to Buffalo

    The lowest priced Southwest flight from Chicago to Buffalo from the last 72 hours was $225. Generally, Southwest has 10 flights on this route every week with an average price of $355. Southwest is rated 8.0/10 by our users.

  • United Airlines Flights From Chicago to Buffalo

    United Airlines is also a popular choice for this route. United Airlines flight deals for Chicago to Buffalo start from as low as $229 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $379. United Airlines operates 26 flights to Buffalo from Chicago in an average week. Users have rated it 7.4/10 across 8,684 reviews.


Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Williamsville
Cheektowaga
Amherst
Tonawanda
Lockport
Grand Island
West Seneca
East Aurora
Orchard Park
Bowmansville
Eden
Angola

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Buffalo?

Finding the right flight to Buffalo from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buffalo quick and easy, saving you time and money.

Can I find flights from Chicago to Buffalo with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Buffalo from Chicago with this policy.

How can momondo help me find flights from Chicago to Buffalo?

momondo provides multiple filters to help you find the best flight to Buffalo from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Buffalo right now. Can momondo alert me if prices change?

Price alerts on flights to Buffalo from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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