$73+ Cheap flights from Chicago (CHI) to Buffalo (BUF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUF
Mar 18 — Mar 251
1 adult, Economy
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Find cheap flights from Chicago to Buffalo with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Chicago to Buffalo are usually found in September or August, booked 72 days in advance, depart on a Tuesday or Monday and return on a Thursday
Cheap flight deals from Chicago to Buffalo
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Best
Last-minute
One-way
Cheapest flights from Chicago to BuffaloExplore the most affordable flight options available from Chicago to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 16, 2026.
Explore the most affordable flight options available from Chicago to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 16, 2026.
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:40 am
ORD
- BUF
Nonstop1h 49m
American Airlines
Sat 6/206:00 am
BUF
- ORD
Nonstop2h 03m
American Airlines
Deal found 2/15![American Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:40 pm
ORD
- BUF
1 stop21h 33m
Multiple Airlines
Sat 5/21:08 pm
BUF
- ORD
1 stop6h 46m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:01 am
ORD
- BUF
1 stop6h 12m
Multiple Airlines
Wed 5/201:08 pm
BUF
- ORD
1 stop6h 46m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$158
This Priceline deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:14 am
MDW
- BUF
1 stop8h 59m
Frontier
Sun 4/191:08 pm
BUF
- MDW
1 stop10h 11m
Frontier
Deal found 2/15![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:05 am
ORD
- BUF
1 stop6h 49m
Frontier
Mon 3/21:48 pm
BUF
- ORD
1 stop9h 51m
Frontier
Deal found 2/12![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:01 am
ORD
- BUF
1 stop6h 12m
Frontier
Wed 5/201:08 pm
BUF
- ORD
1 stop10h 31m
Frontier
Deal found 2/14![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/161:40 pm
ORD
- BUF
1 stop21h 33m
Multiple Airlines
Sun 4/191:08 pm
BUF
- ORD
1 stop10h 31m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$164
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:40 am
ORD
- BUF
Nonstop1h 49m
American Airlines
Sun 6/76:00 am
BUF
- ORD
Nonstop2h 03m
American Airlines
Deal found 2/15![American Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:44 pm
ORD
- BUF
1 stop17h 21m
Frontier
Mon 3/912:50 pm
BUF
- ORD
1 stop20h 33m
Frontier
Deal found 2/14![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:05 am
ORD
- BUF
1 stop6h 49m
Multiple Airlines
Mon 3/99:25 pm
BUF
- ORD
1 stop21h 21m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:20 pm
MDW
- BUF
1 stop20h 53m
Frontier
Sat 5/21:08 pm
BUF
- MDW
1 stop7h 23m
Frontier
Deal found 2/14![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:44 pm
ORD
- BUF
1 stop17h 21m
Multiple Airlines
Mon 3/911:44 am
BUF
- ORD
1 stop9h 03m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$175
Best flights from Chicago to BuffaloDiscover carefully curated flight deals from Chicago to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 16, 2026.
Discover carefully curated flight deals from Chicago to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 16, 2026.
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/148:45 pm
ORD
- BUF
Nonstop1h 38m
American Airlines
Sat 3/216:00 am
BUF
- ORD
Nonstop2h 14m
American Airlines
Deal found 2/14![American Airlines logo]()
$145
This Frontier deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:01 am
ORD
- BUF
1 stop6h 12m
Frontier
Sun 5/101:08 pm
BUF
- ORD
1 stop10h 31m
Frontier
Deal found 2/15![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:44 pm
ORD
- BUF
1 stop17h 21m
Multiple Airlines
Mon 3/911:44 am
BUF
- ORD
1 stop9h 03m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$180
This JetBlue deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:31 am
ORD
- BUF
1 stop5h 28m
JetBlue
Sat 5/92:28 pm
BUF
- ORD
1 stop8h 08m
JetBlue
Deal found 2/15![JetBlue logo]()
$181
This Southwest deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:45 am
MDW
- BUF
Nonstop1h 25m
Southwest
Wed 4/86:55 pm
BUF
- MDW
Nonstop1h 40m
Southwest
Deal found 2/15![Southwest logo]()
$257
This Frontier deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:25 am
ORD
- BUF
1 stop7h 48m
Frontier
Sat 5/91:08 pm
BUF
- ORD
1 stop10h 31m
Frontier
Deal found 2/13![Frontier logo]()
$160
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:05 am
ORD
- BUF
1 stop8h 27m
American Airlines
Sat 5/23:01 pm
BUF
- ORD
Nonstop2h 06m
American Airlines
Deal found 2/14![American Airlines logo]()
$194
This Frontier deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:05 am
ORD
- BUF
1 stop7h 19m
Frontier
Mon 3/21:48 pm
BUF
- ORD
1 stop9h 51m
Frontier
Deal found 2/13![Frontier logo]()
$181
This Priceline deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:01 am
ORD
- BUF
1 stop6h 12m
Frontier
Mon 5/181:08 pm
BUF
- ORD
1 stop10h 31m
Frontier
Deal found 2/13![Frontier logo]()
$181
This Trip.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:00 am
MDW
- BUF
1 stop6h 24m
Frontier
Mon 3/21:48 pm
BUF
- MDW
1 stop9h 41m
Frontier
Deal found 2/13![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/69:51 pm
MDW
- BUF
1 stop11h 58m
Multiple Airlines
Mon 3/99:25 pm
BUF
- MDW
2 stops16h 37m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:25 pm
MDW
- BUF
1 stop4h 30m
Southwest
Sat 3/214:30 pm
BUF
- MDW
1 stop8h 20m
Southwest
Deal found 2/14![Southwest logo]()
$257
This Mytrip deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:30 am
ORD
- BUF
1 stop26h 04m
Frontier
Mon 3/21:48 pm
BUF
- ORD
1 stop9h 51m
Frontier
Deal found 2/12![Frontier logo]()
$193
This Southwest deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:10 pm
MDW
- BUF
2 stops8h 10m
Southwest
Sat 5/25:35 am
BUF
- MDW
1 stop6h 10m
Southwest
Deal found 2/14![Southwest logo]()
$260
This Priceline deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:25 am
MDW
- BUF
1 stop5h 29m
Frontier
Sat 3/711:44 am
BUF
- MDW
1 stop11h 01m
Frontier
Deal found 2/13![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/12:56 pm
MDW
- BUF
1 stop20h 21m
Frontier
Wed 4/81:02 pm
BUF
- MDW
1 stop10h 17m
Frontier
Deal found 2/15![Frontier logo]()
$234
This Frontier deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/72:56 pm
MDW
- BUF
1 stop15h 53m
Frontier
Mon 3/911:44 am
BUF
- MDW
1 stop10h 09m
Frontier
Deal found 2/14![Frontier logo]()
$235
This Expedia deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/69:51 pm
MDW
- BUF
1 stop11h 58m
Frontier
Sun 3/81:00 pm
BUF
- MDW
1 stop10h 19m
Frontier
Deal found 2/12![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:20 pm
MDW
- BUF
2 stops19h 29m
Frontier
Mon 5/181:08 pm
BUF
- MDW
1 stop7h 23m
Frontier
Deal found 2/13![Frontier logo]()
$260
Last-minute flights from Chicago to BuffaloDiscover last-minute flight deals from Chicago to Buffalo. Data last updated February 16, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Buffalo. Data last updated February 16, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:30 am
ORD
- BUF
1 stop26h 04m
Frontier
Mon 3/21:48 pm
BUF
- ORD
1 stop9h 51m
Frontier
Deal found 2/12![Frontier logo]()
$193
This Frontier deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:05 am
ORD
- BUF
1 stop6h 49m
Frontier
Mon 3/21:48 pm
BUF
- ORD
1 stop9h 51m
Frontier
Deal found 2/12![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:25 am
MDW
- BUF
1 stop5h 29m
Frontier
Mon 3/21:48 pm
BUF
- MDW
1 stop9h 41m
Frontier
Deal found 2/12![Frontier logo]()
$181
This Priceline deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:25 am
MDW
- BUF
1 stop5h 29m
Frontier
Sat 3/711:44 am
BUF
- MDW
1 stop11h 01m
Frontier
Deal found 2/13![Frontier logo]()
$200
This Mytrip deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:05 am
ORD
- BUF
1 stop6h 39m
Frontier
Tue 3/37:17 pm
BUF
- ORD
1 stop21h 35m
Frontier
Deal found 2/12![Frontier logo]()
$187
This Trip.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:00 am
MDW
- BUF
1 stop6h 24m
Frontier
Mon 3/21:48 pm
BUF
- MDW
1 stop9h 41m
Frontier
Deal found 2/13![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:05 am
ORD
- BUF
1 stop6h 49m
Multiple Airlines
Mon 3/99:25 pm
BUF
- ORD
1 stop21h 21m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:44 pm
ORD
- BUF
1 stop17h 21m
Frontier
Mon 3/912:50 pm
BUF
- ORD
1 stop20h 33m
Frontier
Deal found 2/14![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:44 pm
ORD
- BUF
1 stop17h 21m
Multiple Airlines
Mon 3/911:44 am
BUF
- ORD
1 stop9h 03m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/119:28 am
ORD
- BUF
1 stop25h 37m
Frontier
Sun 3/1512:45 pm
BUF
- ORD
1 stop23h 07m
Frontier
Deal found 2/14![Frontier logo]()
$178
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/148:45 pm
ORD
- BUF
Nonstop1h 38m
American Airlines
Sat 3/216:00 am
BUF
- ORD
Nonstop2h 14m
American Airlines
Deal found 2/14![American Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:18 pm
ORD
- BUF
1 stop15h 47m
Multiple Airlines
Sun 3/229:47 pm
BUF
- ORD
1 stop20h 09m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$186
One-way flights from Chicago to BuffaloSearch for one-way flight options from Chicago to Buffalo. Find affordable one-way fares based on user searches. Data last updated February 16, 2026.
Search for one-way flight options from Chicago to Buffalo. Find affordable one-way fares based on user searches. Data last updated February 16, 2026.
This Southwest deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/47:00 pm
MDW
- BUF
Nonstop1h 25m
Southwest
Deal found 2/15![Southwest logo]()
$73
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:53 pm
ORD
- BUF
Nonstop1h 43m
American Airlines
Deal found 2/16![American Airlines logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:40 pm
ORD
- BUF
1 stop21h 33m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$76
This Super.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:05 am
ORD
- BUF
1 stop6h 39m
Frontier
Deal found 2/13![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:14 am
MDW
- BUF
1 stop8h 59m
Frontier
Deal found 2/13![Frontier logo]()
$80
This Frontier deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:01 am
ORD
- BUF
1 stop6h 12m
Frontier
Deal found 2/13![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:15 pm
ORD
- BUF
1 stop19h 58m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:05 am
MDW
- BUF
1 stop29h 00m
Frontier
Deal found 2/13![Frontier logo]()
$82
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:34 pm
MDW
- BUF
1 stop3h 21m
Delta
Deal found 2/15![Delta logo]()
$83
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:40 pm
ORD
- BUF
1 stop4h 15m
Delta
Deal found 2/15![Delta logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:14 am
MDW
- BUF
1 stop24h 35m
Frontier
Deal found 2/13![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:18 pm
ORD
- BUF
1 stop15h 47m
Frontier
Deal found 2/15![Frontier logo]()
$84
Find flight deals from Chicago to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Buffalo (BUF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $145 (American Airlines) |
One-way from | $73 (Southwest) |
Popular in | February |
Cheapest in | September |
Average price | $601 |
Good round-trip deal | $323 or less |
Good one-way deal | $180 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 16, 2026.
Use the filters below to find and compare flights from Chicago to Buffalo that are best for you.
Fly from
Chicago
Fly to
Buffalo
Route
Depart
Return
Price
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Sat 3/14
8:45 pm-11:23 pm
Nonstop1h 38m
Buffalo
Sat 3/21
6:00 am-7:14 am
Nonstop2h 14m
$145
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Wed 5/6
5:01 am-12:13 pm
1 stop6h 12m
Buffalo
Sun 5/10
1:08 pm-10:39 pm
1 stop10h 31m
$160
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Thu 5/7
10:25 am-7:13 pm
1 stop7h 48m
Buffalo
Sat 5/9
1:08 pm-10:39 pm
1 stop10h 31m
$160
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Sat 3/7
4:44 pm-11:05 am
1 stop17h 21m
Buffalo
Mon 3/9
11:44 am-7:47 pm
1 stop9h 03m
$180
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Thu 5/7
8:31 am-2:59 pm
1 stop5h 28m
Buffalo
Sat 5/9
2:28 pm-9:36 pm
1 stop8h 08m
$181
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Sun 3/1
5:05 am-1:24 pm
1 stop7h 19m
Buffalo
Mon 3/2
1:48 pm-10:39 pm
1 stop9h 51m
$181
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Fri 5/15
5:01 am-12:13 pm
1 stop6h 12m
Buffalo
Mon 5/18
1:08 pm-10:39 pm
1 stop10h 31m
$181
ChicagoBuffalo
MDW - BUF
MDWBUF
Chicago Midway
Sun 3/1
6:00 am-1:24 pm
1 stop6h 24m
Buffalo
Mon 3/2
1:48 pm-10:29 pm
1 stop9h 41m
$192
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Wed 2/25
8:30 am-11:34 am
1 stop26h 04m
Buffalo
Mon 3/2
1:48 pm-10:39 pm
1 stop9h 51m
$193
ChicagoBuffalo
ORD - BUF
ORDBUF
Chicago O'Hare Intl
Thu 4/30
7:05 am-4:32 pm
1 stop8h 27m
Buffalo
Sat 5/2
3:01 pm-4:07 pm
Nonstop2h 06m
$194
Showing 1-10 of 41 results
Compare providers for flights from Chicago to Buffalo
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Buffalo in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-Buffalo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Chicago to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from Chicago with our price prediction graph.
CHI-BUF
ORD-BUF
MDW-BUF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Chicago to Buffalo
CHI-BUF
ORD-BUF
MDW-BUF
How far ahead should I book a flight from Chicago to Buffalo?
Use this chart to determine the optimal time to book a round-trip flight from Chicago to Buffalo. Price data was last updated on February 13, 2026.
The best time to book flights from Chicago to Buffalo is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Chicago to Buffalo?
Currently, January is the cheapest month in which you can book a flight from Chicago to Buffalo (average of $98). Flying from Chicago to Buffalo in March is currently the most expensive (average of $246). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHI to BUF?
Find hourly flight availability from Chicago to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 16, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 10% on flights from Chicago to Buffalo by exploring options for tickets in the evening.
What is the cheapest day to fly from Chicago to Buffalo?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Buffalo. Price data was last updated on February 7, 2026.
Travelers seeking maximum savings on their Chicago to Buffalo flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago to Buffalo
Explore weekly flight availability from Chicago to Buffalo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 16, 2026.
The most flights from CHI to BUF are scheduled on a Monday (30 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).
How much does it cost to fly round-trip from Chicago to Buffalo?
Reviews of airlines servicing Buffalo
Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated February 16, 2026.
Read through reviews of airlines operating flights from Chicago to Buffalo, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Chicago to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsLockport
Cheektowaga
Batavia
Williamsville
Orchard Park
Eden
Amherst
West Seneca
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 16, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Buffalo by cabin class
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Chicago and Buffalo flights
Browse other Chicago and Buffalo flight options. Last updated on February 16, 2026.
Other flights from Chicago
Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on February 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Chicago to Buffalo
Discover the top 4 airlines that operate flights from Chicago to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$132 | Average$198 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$177 | Average$303 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$197 | Average$353 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$278 | Average$398 | FlexibilityNo cancel fee | On-time63% |