$117+ Cheap flights from Chicago (CHI) to Buffalo (BUF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUF
Nov 14 — Nov 211
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 April or November, booked 22 days in advance, depart on a Saturday or Wednesday and return on a Wednesday
Cheap flight deals from Chicago to Buffalo
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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 October 15, 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 October 15, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/188:07 pm -
1 stop21h 39m
Mon 12/217:41 pm -
1 stop24h 21m
Deal found 10/12![Frontier logo]()
$251
This Cheapflightsfares deal was found by Cheapflights users on 10/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/178:41 pm -
1 stop19h 05m
Mon 12/215:42 pm -
1 stop17h 06m
Deal found 10/11![Frontier logo]()
$251
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:50 pm -
1 stop10h 17m
Thu 11/1212:54 pm -
1 stop20h 52m
Deal found 10/12![Frontier logo]()
$265
This Frontier deal was found by Cheapflights users on 10/12. 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.
Wed 11/46:16 am -
1 stop5h 59m
Fri 11/68:02 am -
1 stop10h 45m
Deal found 10/12![Frontier logo]()
$266
This Cheapflightsfares deal was found by Cheapflights users on 10/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:50 pm -
1 stop10h 17m
Mon 11/91:48 pm -
1 stop5h 57m
Deal found 10/11![Frontier logo]()
$266
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:28 am -
1 stop11h 01m
Mon 11/239:20 pm -
1 stop23h 27m
Deal found 10/13![Frontier logo]()
$269
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:49 am -
1 stop11h 40m
Mon 11/239:20 pm -
1 stop28h 23m
Deal found 10/13![Frontier logo]()
$269
This Orbitz deal was found by Cheapflights users on 10/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:42 pm -
1 stop11h 25m
Mon 11/91:48 pm -
1 stop10h 59m
Deal found 10/11![Frontier logo]()
$270
This Orbitz deal was found by Cheapflights users on 10/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:08 am -
1 stop6h 07m
Thu 11/192:34 pm -
1 stop10h 13m
Deal found 10/15![Frontier logo]()
$277
This Trip.com deal was found by Cheapflights users on 10/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:40 am -
1 stop13h 44m
Wed 12/21:15 pm -
1 stop6h 22m
Deal found 10/11![Frontier logo]()
$281
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:50 pm -
1 stop16h 13m
Thu 11/192:34 pm -
1 stop6h 59m
Deal found 10/13![Frontier logo]()
$285
This Cheapflightsfares deal was found by Cheapflights users on 10/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/208:42 pm -
1 stop14h 26m
Mon 11/239:20 pm -
1 stop23h 27m
Deal found 10/14![Frontier logo]()
$286
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 October 15, 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 October 15, 2026.
This Southwest deal was found by Cheapflights users on 10/10. 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 11/257:05 pm -
Nonstop1h 30m
Tue 12/16:55 pm -
Nonstop1h 50m
Deal found 10/10![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 11/46:50 am -
Nonstop1h 52m
Thu 11/56:30 am -
Nonstop2h 03m
Deal found 10/14![United Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 10/14. 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.
Thu 12/171:41 pm -
1 stop4h 19m
Sun 12/206:00 am -
1 stop3h 50m
Deal found 10/14![Delta logo]()
$333
This Southwest deal was found by Cheapflights users on 10/11. 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.
Sat 11/217:10 pm -
Nonstop1h 35m
Mon 11/234:00 pm -
Nonstop1h 45m
Deal found 10/11![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 10/10. 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 11/121:31 pm -
1 stop4h 42m
Sat 11/149:00 am -
1 stop4h 51m
Deal found 10/10![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 10/11. 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.
Wed 11/257:05 pm -
Nonstop1h 30m
Wed 12/22:00 pm -
Nonstop1h 50m
Deal found 10/11![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 10/13. 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.
Fri 12/116:41 pm -
1 stop4h 20m
Mon 12/146:24 am -
1 stop4h 13m
Deal found 10/13![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 10/14. 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 11/512:55 pm -
Nonstop1h 30m
Mon 11/97:20 am -
Nonstop1h 50m
Deal found 10/14![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 12/302:02 pm -
Nonstop1h 52m
Sat 1/26:30 am -
Nonstop2h 22m
Deal found 10/13![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 10/13. 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 12/86:15 pm -
Nonstop1h 35m
Wed 12/96:55 pm -
Nonstop1h 50m
Deal found 10/13![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 10/14. 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 11/75:29 pm -
1 stop4h 09m
Sun 11/812:02 pm -
1 stop5h 30m
Deal found 10/14![Delta logo]()
$371
This Delta deal was found by Cheapflights users on 10/13. 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.
Sat 12/125:05 pm -
1 stop4h 43m
Sun 1/1012:50 pm -
1 stop4h 47m
Deal found 10/13![Delta logo]()
$376
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Thu 10/2910:29 am -
Nonstop1h 47m
Sun 11/15:58 pm -
Nonstop2h 04m
Deal found 10/11![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Sat 12/128:52 am -
1 stop4h 28m
Sun 1/105:45 am -
1 stop6h 15m
Deal found 10/13![United Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Tue 11/242:18 pm -
Nonstop1h 44m
Sun 11/296:30 am -
Nonstop2h 03m
Deal found 10/11![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Tue 10/272:18 pm -
Nonstop1h 44m
Sat 10/311:53 pm -
Nonstop2h 02m
Deal found 10/11![United Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 10/14. 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 11/67:00 am -
1 stop3h 35m
Sun 11/86:00 am -
2 stops7h 59m
Deal found 10/14![Delta logo]()
$558
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Sat 10/311:07 pm -
1 stop5h 56m
Sun 11/16:00 am -
1 stop6h 39m
Deal found 10/12![United Airlines logo]()
$531
This Delta deal was found by Cheapflights users on 10/13. 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 11/510:30 am -
1 stop7h 13m
Mon 11/92:15 pm -
2 stops7h 02m
Deal found 10/13![Delta logo]()
$561
This Delta deal was found by Cheapflights users on 10/14. 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.
Thu 12/179:59 am -
2 stops8h 01m
Sun 12/206:00 am -
1 stop4h 49m
Deal found 10/14![Delta logo]()
$564
Last-minute flights from Chicago to BuffaloDiscover last-minute flight deals from Chicago to Buffalo. Data last updated October 15, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Buffalo. Data last updated October 15, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 10/12. 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.
Wed 11/46:16 am -
1 stop5h 59m
Fri 11/68:02 am -
1 stop10h 45m
Deal found 10/12![Frontier logo]()
$266
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:50 pm -
1 stop10h 17m
Thu 11/1212:54 pm -
1 stop20h 52m
Deal found 10/12![Frontier logo]()
$265
This Cheapflightsfares deal was found by Cheapflights users on 10/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:50 pm -
1 stop10h 17m
Mon 11/91:48 pm -
1 stop5h 57m
Deal found 10/11![Frontier logo]()
$266
This Orbitz deal was found by Cheapflights users on 10/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:42 pm -
1 stop11h 25m
Mon 11/91:48 pm -
1 stop10h 59m
Deal found 10/11![Frontier logo]()
$270
This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:50 pm -
1 stop16h 13m
Thu 11/192:34 pm -
1 stop6h 59m
Deal found 10/13![Frontier logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
Thu 11/126:42 pm -
1 stop17h 21m
Thu 11/192:34 pm -
1 stop10h 13m
Deal found 10/13![Frontier logo]()
$291
This Orbitz deal was found by Cheapflights users on 10/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:08 am -
1 stop6h 07m
Thu 11/192:34 pm -
1 stop10h 13m
Deal found 10/15![Frontier logo]()
$277
This Cheapflightsfares deal was found by Cheapflights users on 10/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/208:42 pm -
1 stop14h 26m
Mon 11/239:20 pm -
1 stop23h 27m
Deal found 10/14![Frontier logo]()
$286
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:28 am -
1 stop11h 01m
Mon 11/239:20 pm -
1 stop23h 27m
Deal found 10/13![Frontier logo]()
$269
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:49 am -
1 stop11h 40m
Mon 11/239:20 pm -
1 stop28h 23m
Deal found 10/13![Frontier logo]()
$269
This Cheapflightsfares deal was found by Cheapflights users on 10/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:49 am -
1 stop11h 40m
Sun 11/229:20 pm -
1 stop28h 23m
Deal found 10/11![Frontier logo]()
$289
This Trip.com deal was found by Cheapflights users on 10/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:40 am -
1 stop13h 44m
Wed 12/21:15 pm -
1 stop6h 22m
Deal found 10/11![Frontier logo]()
$281
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 October 15, 2026.
Search for one-way flight options from Chicago to Buffalo. Find affordable one-way fares based on user searches. Data last updated October 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/11. 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.
Thu 12/108:15 am -
1 stop27h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Frontier logo]()
$117
This Cheapflightsfares deal was found by Cheapflights users on 10/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/218:10 am -
1 stop8h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 10/13. 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 11/116:08 am -
1 stop6h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Frontier logo]()
$119
This Frontier deal was found by Cheapflights users on 10/14. 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.
Fri 12/115:35 am -
1 stop7h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$119
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/188:07 pm -
1 stop21h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Frontier logo]()
$123
This Cheapflightsfares deal was found by Cheapflights users on 10/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:40 am -
1 stop13h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$123
This CheapOair deal was found by Cheapflights users on 10/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:42 pm -
1 stop22h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 10/14. 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.
Mon 1/116:00 am -
1 stop11h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 10/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:08 am -
1 stop6h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$126
This Expedia deal was found by Cheapflights users on 10/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:08 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/177:35 pm -
1 stop16h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Tue 11/107:35 pm -
1 stop16h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Frontier logo]()
$131
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 October 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $251 (Cheapflightsfares) |
One-way from | $117 (Kiwi.com) |
Popular in | February |
Cheapest in | April |
Average price | $373 |
Good round-trip deal | $378 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 7,457,451 searches. Data last updated October 15, 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
Sat 12/19
8:35 pm-5:40 pm
1 stop20h 05m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$123
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Thu 11/5
7:50 pm-7:07 am
1 stop10h 17m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$138
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Tue 11/17
1:25 pm-4:00 pm
Nonstop1h 35m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$154
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Wed 11/18
2:18 pm-5:02 pm
Nonstop1h 44m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$154
Quickest round-trip
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Wed 11/18
8:10 am-10:40 am
Nonstop1h 30m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$154
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Tue 11/17
10:30 am-1:17 pm
Nonstop1h 47m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$154
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Wed 11/25
7:05 pm-9:35 pm
Nonstop1h 30m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$159
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Sat 11/21
7:49 am-8:29 pm
1 stop11h 40m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$159
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Wed 1/13
8:10 am-10:50 am
Nonstop1h 40m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$159
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Thu 1/7
5:30 pm-8:00 pm
Nonstop1h 30m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$159
Showing 1-10 of 40 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 October.
| 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
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 August is currently the most expensive (average of $436). 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 October 15, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 11% on flights from Chicago to Buffalo by exploring options for tickets at noon.
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 October 15, 2026.
The most flights from CHI to BUF are scheduled on a Wednesday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 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 $306 and $567 in December.The cheapest round-trip price found within the last 5 days was $251 on Frontier (Dec 18-Dec 21).
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 October 10, 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 mornings 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 October 15, 2026.
Read through reviews of airlines operating flights from Chicago to Buffalo, such as Southwest,United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
7.9
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 locationsCheektowaga
Lockport
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 October 15, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
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Chicago and Buffalo flights
Browse other Chicago and Buffalo flight options. Last updated on October 15, 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 October 15, 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 7,457,451 searches. Data last updated October 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$254 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$240 | Average$365 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$251 | Average$420 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$281 | Average$414 | FlexibilityNo cancel fee | On-time63% |