$118+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUF
Sep 15 — Sep 221
Round-trip
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 April, booked 35 days in advance, depart on a Saturday or Wednesday and return on a Thursday
Cheap flight deals from Chicago to Buffalo
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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 August 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 August 16, 2026.
This Super.com deal was found by Cheapflights users on 8/13. 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.
Sat 9/196:25 am -
1 stop5h 30m
Sat 9/261:45 pm -
1 stop5h 06m
Deal found 8/13![Frontier logo]()
$148
This Orbitz deal was found by Cheapflights users on 8/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:50 pm -
1 stop24h 55m
Wed 9/161:40 pm -
1 stop5h 43m
Deal found 8/13![Frontier logo]()
$148
This Frontier deal was found by Cheapflights users on 8/11. 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 9/216:25 am -
1 stop5h 30m
Sat 9/261:45 pm -
1 stop5h 06m
Deal found 8/11![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 8/11. 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 9/236:20 am -
1 stop5h 35m
Sat 9/261:45 pm -
1 stop5h 38m
Deal found 8/11![Frontier logo]()
$149
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:25 am -
1 stop5h 30m
Sat 9/121:45 pm -
1 stop5h 06m
Deal found 8/12![Frontier logo]()
$152
This Super.com deal was found by Cheapflights users on 8/13. 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.
Sat 9/126:20 am -
1 stop5h 30m
Tue 9/156:51 pm -
1 stop29h 08m
Deal found 8/13![Frontier logo]()
$154
This Frontier deal was found by Cheapflights users on 8/13. 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 9/216:25 am -
1 stop5h 30m
Fri 9/251:40 pm -
1 stop11h 04m
Deal found 8/13![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/227:28 pm -
1 stop16h 27m
Wed 9/301:40 pm -
1 stop5h 43m
Deal found 8/11![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/236:20 am -
1 stop5h 35m
Fri 9/251:40 pm -
1 stop23h 11m
Deal found 8/11![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Sat 9/51:59 pm -
1 stop19h 30m
Wed 9/91:40 pm -
1 stop5h 43m
Deal found 8/13![Frontier logo]()
$168
This Frontier deal was found by Cheapflights users on 8/12. 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.
Sat 9/266:25 am -
1 stop5h 25m
Sat 10/31:45 pm -
1 stop5h 06m
Deal found 8/12![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 8/12. 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.
Sat 9/266:20 am -
1 stop5h 30m
Sat 10/31:45 pm -
1 stop5h 38m
Deal found 8/12![Frontier logo]()
$169
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 August 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 August 16, 2026.
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 pm -
Nonstop1h 30m
Wed 10/282:00 pm -
Nonstop1h 40m
Deal found 8/13![Southwest logo]()
$217
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:00 pm -
Nonstop1h 43m
Mon 10/127:00 am -
Nonstop2h 00m
Deal found 8/14![United Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:18 pm -
1 stop4h 51m
Mon 9/78:57 am -
1 stop5h 11m
Deal found 8/14![Delta logo]()
$237
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 9/26:50 am -
Nonstop1h 49m
Sun 9/62:51 pm -
1 stop5h 55m
Deal found 8/11![American Airlines logo]()
$242
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:49 am -
Nonstop1h 39m
Wed 9/165:58 pm -
Nonstop2h 02m
Deal found 8/11![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 8/15. 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.
Fri 10/236:40 pm -
Nonstop1h 25m
Tue 10/272:00 pm -
Nonstop1h 40m
Deal found 8/15![Southwest logo]()
$236
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:59 am -
1 stop3h 23m
Tue 9/82:10 pm -
1 stop6h 05m
Deal found 8/12![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:50 am -
Nonstop1h 39m
Sat 10/1710:46 am -
Nonstop1h 59m
Deal found 8/12![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 8/14. 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.
Mon 9/288:05 am -
Nonstop1h 40m
Mon 10/57:20 pm -
1 stop6h 00m
Deal found 8/14![Southwest logo]()
$246
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:07 pm -
Nonstop1h 49m
Tue 9/1510:30 am -
Nonstop2h 00m
Deal found 8/12![United Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:20 pm -
1 stop4h 49m
Mon 9/78:57 am -
1 stop5h 11m
Deal found 8/14![Delta logo]()
$256
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:40 am -
2 stops9h 00m
Sat 9/265:45 am -
2 stops9h 25m
Deal found 8/13![Southwest logo]()
$247
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:49 am -
Nonstop1h 39m
Thu 9/101:51 pm -
Nonstop2h 04m
Deal found 8/13![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 8/15. 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 9/269:05 am -
1 stop7h 35m
Tue 9/296:25 pm -
Nonstop1h 40m
Deal found 8/15![Southwest logo]()
$252
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:07 pm -
Nonstop1h 47m
Mon 9/215:58 pm -
Nonstop2h 02m
Deal found 8/14![United Airlines logo]()
$236
This KAYAK deal was found by Cheapflights users on 8/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:30 pm -
1 stop3h 28m
Wed 9/96:20 am -
1 stop5h 17m
Deal found 8/14![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 pm -
Nonstop1h 47m
Fri 10/167:00 am -
Nonstop2h 00m
Deal found 8/15![United Airlines logo]()
$236
This Southwest deal was found by Cheapflights users on 8/14. 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.
Mon 9/1412:45 pm -
Nonstop1h 30m
Thu 9/174:35 pm -
1 stop7h 10m
Deal found 8/14![Southwest logo]()
$265
This Southwest deal was found by Cheapflights users on 8/15. 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.
Mon 9/146:20 pm -
Nonstop1h 35m
Sat 9/195:45 am -
1 stop5h 55m
Deal found 8/15![Southwest logo]()
$265
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:05 am -
1 stop6h 35m
Sat 10/34:55 pm -
Nonstop1h 40m
Deal found 8/12![Southwest logo]()
$303
This Southwest deal was found by Cheapflights users on 8/11. 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.
Mon 9/1412:45 pm -
Nonstop1h 30m
Wed 9/1612:00 pm -
1 stop4h 50m
Deal found 8/11![Southwest logo]()
$303
Last-minute flights from Chicago to BuffaloDiscover last-minute flight deals from Chicago to Buffalo. Data last updated August 16, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Buffalo. Data last updated August 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Sat 9/51:59 pm -
1 stop19h 30m
Wed 9/91:40 pm -
1 stop5h 43m
Deal found 8/13![Frontier logo]()
$168
This Orbitz deal was found by Cheapflights users on 8/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:50 pm -
1 stop24h 55m
Wed 9/161:40 pm -
1 stop5h 43m
Deal found 8/13![Frontier logo]()
$148
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:25 am -
1 stop5h 30m
Sat 9/121:45 pm -
1 stop5h 06m
Deal found 8/12![Frontier logo]()
$152
This Super.com deal was found by Cheapflights users on 8/13. 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.
Sat 9/126:20 am -
1 stop5h 30m
Tue 9/156:51 pm -
1 stop29h 08m
Deal found 8/13![Frontier logo]()
$154
This Super.com deal was found by Cheapflights users on 8/13. 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.
Sat 9/196:25 am -
1 stop5h 30m
Sat 9/261:45 pm -
1 stop5h 06m
Deal found 8/13![Frontier logo]()
$148
This Frontier deal was found by Cheapflights users on 8/11. 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 9/216:25 am -
1 stop5h 30m
Sat 9/261:45 pm -
1 stop5h 06m
Deal found 8/11![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 8/13. 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 9/216:25 am -
1 stop5h 30m
Fri 9/251:40 pm -
1 stop11h 04m
Deal found 8/13![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/227:28 pm -
1 stop16h 27m
Wed 9/301:40 pm -
1 stop5h 43m
Deal found 8/11![Frontier logo]()
$162
This Frontier deal was found by Cheapflights users on 8/11. 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 9/236:20 am -
1 stop5h 35m
Sat 9/261:45 pm -
1 stop5h 38m
Deal found 8/11![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/236:20 am -
1 stop5h 35m
Fri 9/251:40 pm -
1 stop23h 11m
Deal found 8/11![Frontier logo]()
$167
This Frontier deal was found by Cheapflights users on 8/12. 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.
Sat 9/266:25 am -
1 stop5h 25m
Sat 10/31:45 pm -
1 stop5h 06m
Deal found 8/12![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 8/12. 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.
Sat 9/266:20 am -
1 stop5h 30m
Sat 10/31:45 pm -
1 stop5h 38m
Deal found 8/12![Frontier logo]()
$169
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 August 16, 2026.
Search for one-way flight options from Chicago to Buffalo. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/106:25 am -
1 stop29h 30m
Deal found 8/12![Frontier logo]()
$118
This American Airlines deal was found by Cheapflights users on 8/14. 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 9/102:32 pm -
Nonstop1h 46m
Deal found 8/14![American Airlines logo]()
$118
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:44 pm -
1 stop4h 15m
Deal found 8/13![Delta logo]()
$119
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/71:59 pm -
1 stop4h 09m
Deal found 8/14![Delta logo]()
$119
This Priceline deal was found by Cheapflights users on 8/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:15 am -
1 stop5h 44m
Deal found 8/12![Frontier logo]()
$120
This Frontier deal was found by Cheapflights users on 8/13. 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.
Sat 10/106:00 am -
1 stop5h 59m
Deal found 8/13![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 10/156:40 pm -
1 stop17h 19m
Deal found 8/12![Frontier logo]()
$121
This Frontier deal was found by Cheapflights users on 8/11. 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 9/146:25 am -
1 stop5h 30m
Deal found 8/11![Frontier logo]()
$122
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:16 pm -
Nonstop1h 43m
Deal found 8/13![American Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Sat 11/147:25 am -
1 stop27h 53m
Deal found 8/13![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Wed 10/77:11 am -
2 stops28h 07m
Deal found 8/12![Frontier logo]()
$123
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:44 pm -
1 stop2h 54m
Deal found 8/12![Delta logo]()
$124
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 August 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $148 (Super.com) |
One-way from | $118 (Kiwi.com) |
Popular in | February |
Cheapest in | September |
Average price | $471 |
Good round-trip deal | $307 or less |
Good one-way deal | $173 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 August 16, 2026.
Use the filters below to find and compare flights from Chicago to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Tue 10/27
6:00 pm-8:30 pm
Nonstop1h 30m
Buffalo
Wed 10/28
2:00 pm-2:40 pm
Nonstop1h 40m
$217
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Sat 10/10
2:00 pm-4:43 pm
Nonstop1h 43m
Buffalo
Mon 10/12
7:00 am-8:00 am
Nonstop2h 00m
$217
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Mon 9/14
6:49 am-9:28 am
Nonstop1h 39m
Buffalo
Wed 9/16
5:58 pm-7:00 pm
Nonstop2h 02m
$227
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Thu 10/15
6:50 am-9:29 am
Nonstop1h 39m
Buffalo
Sat 10/17
10:46 am-11:45 am
Nonstop1h 59m
$227
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Thu 9/10
2:07 pm-4:56 pm
Nonstop1h 49m
Buffalo
Tue 9/15
10:30 am-11:30 am
Nonstop2h 00m
$227
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Tue 9/8
6:49 am-9:28 am
Nonstop1h 39m
Buffalo
Thu 9/10
1:51 pm-2:55 pm
Nonstop2h 04m
$227
Quickest round-trip
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Fri 10/23
6:40 pm-9:05 pm
Nonstop1h 25m
Buffalo
Tue 10/27
2:00 pm-2:40 pm
Nonstop1h 40m
$236
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Fri 9/18
2:07 pm-4:54 pm
Nonstop1h 47m
Buffalo
Mon 9/21
5:58 pm-7:00 pm
Nonstop2h 02m
$236
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Mon 10/12
6:00 pm-8:47 pm
Nonstop1h 47m
Buffalo
Fri 10/16
7:00 am-8:00 am
Nonstop2h 00m
$236
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Sat 9/5
5:18 pm-11:09 pm
1 stop4h 51m
Buffalo
Mon 9/7
8:57 am-1:08 pm
1 stop5h 11m
$237
Showing 1-10 of 37 resultsSorted by cheapest first
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 August.
| 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
MDW-BUF
ORD-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
MDW-BUF
ORD-BUF
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 $315). Flying from Chicago to Buffalo in March is currently the most expensive (average of $451). 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 August 16, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 4% on flights from Chicago to Buffalo by exploring options for tickets in the afternoon.
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 August 16, 2026.
The most flights from CHI to BUF are scheduled on a Monday (36 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (22 on average).
How much does it cost to fly round-trip from Chicago to Buffalo?
Airfare is below average for this route at the moment.
Chicago to Buffalo flights typically cost between $387 and $505 in September.The cheapest round-trip price found within the last 5 days was $148 on Frontier (Sep 19-Sep 26).
How far ahead should I book a flight from Chicago to Buffalo?
The best time to book flights from Chicago to Buffalo is 65 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 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 August 8, 2026.
Travelers seeking maximum savings on their Chicago to Buffalo flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 August 16, 2026.
Read through reviews of airlines operating flights from Chicago to Buffalo, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
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
Amherst
Williamsville
Orchard Park
Eden
Bowmansville
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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 August 16, 2026.
Complete your trip
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Chicago and Buffalo flights
Browse other Chicago and Buffalo flight options. Last updated on August 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 August 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 August 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$254 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$217 | Average$396 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$237 | Average$353 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$249 | Average$425 | FlexibilityNo cancel fee | On-time63% |