$101+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUF
Nov 24 — Dec 11
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 September, 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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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 October 25, 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 25, 2026.
This Southwest deal was found by Cheapflights users on 10/20. 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 11/1312:50 pm -
2 stops11h 15m
Sun 11/157:20 am -
Nonstop1h 50m
Deal found 10/20![Southwest logo]()
$282
This Delta deal was found by Cheapflights users on 10/21. 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 11/91:31 pm -
1 stop4h 42m
Tue 11/106:35 am -
1 stop4h 11m
Deal found 10/21![Delta logo]()
$283
This Delta deal was found by Cheapflights users on 10/21. 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 12/1711:39 am -
1 stop6h 21m
Mon 12/215:50 pm -
1 stop3h 28m
Deal found 10/21![Delta logo]()
$283
This Southwest deal was found by Cheapflights users on 10/21. 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 11/131:20 pm -
2 stops9h 05m
Sat 11/1410:10 am -
1 stop7h 20m
Deal found 10/21![Southwest logo]()
$286
This Cheapflightsfares deal was found by Cheapflights users on 10/20. 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 12/188:35 pm -
1 stop23h 08m
Sun 12/206:35 pm -
1 stop25h 55m
Deal found 10/20![Frontier logo]()
$289
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 10/21![Frontier logo]()
$290
This Southwest deal was found by Cheapflights users on 10/21. 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 11/131:20 pm -
2 stops9h 05m
Mon 11/163:55 pm -
2 stops7h 50m
Deal found 10/21![Southwest logo]()
$291
This Frontier deal was found by Cheapflights users on 10/21. 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 11/57:50 pm -
1 stop10h 17m
Mon 11/91:48 pm -
1 stop5h 57m
Deal found 10/21![Frontier logo]()
$291
This Southwest deal was found by Cheapflights users on 10/21. 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 12/58:00 am -
2 stops5h 55m
Sat 12/1210:10 am -
2 stops7h 55m
Deal found 10/21![Southwest logo]()
$293
This Mytrip deal was found by Cheapflights users on 10/22. 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 11/275:40 am -
1 stop13h 44m
Wed 12/21:15 pm -
2 stops12h 44m
Deal found 10/22![Frontier logo]()
$294
This Mytrip deal was found by Cheapflights users on 10/21. 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 12/37:00 am -
2 stops28h 19m
Wed 12/91:15 pm -
2 stops19h 56m
Deal found 10/21![Frontier logo]()
$295
This CheapTicketsDeal deal was found by Cheapflights users on 10/22. 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 CheapTicketsDeal is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:53 am -
Nonstop1h 35m
Sun 1/107:48 am -
Nonstop2h 00m
Deal found 10/22![JetBlue logo]()
$297
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 25, 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 25, 2026.
This Southwest deal was found by Cheapflights users on 10/20. 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 12/128:00 am -
2 stops5h 55m
Mon 1/181:40 pm -
2 stops9h 15m
Deal found 10/20![Southwest logo]()
$291
This Delta deal was found by Cheapflights users on 10/22. 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.
Tue 12/222:10 pm -
1 stop7h 26m
Mon 12/285:50 pm -
1 stop3h 28m
Deal found 10/22![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/185:55 pm -
Nonstop1h 40m
Mon 12/215:35 pm -
Nonstop2h 19m
Deal found 10/24![United Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 10/24. 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
Sat 12/196:00 am -
1 stop3h 49m
Deal found 10/24![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/135:51 pm -
Nonstop1h 45m
Sun 11/155:58 pm -
Nonstop2h 04m
Deal found 10/21![United Airlines logo]()
$360
This Southwest deal was found by Cheapflights users on 10/24. 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 11/148:00 am -
2 stops5h 55m
Mon 11/163:55 pm -
1 stop6h 35m
Deal found 10/24![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 10/20. 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 12/245:55 pm -
Nonstop1h 52m
Sun 12/276:30 am -
Nonstop2h 22m
Deal found 10/20![United Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 10/21. 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 11/188:10 am -
2 stops7h 20m
Wed 11/258:35 am -
2 stops8h 05m
Deal found 10/21![Southwest logo]()
$380
This Delta deal was found by Cheapflights users on 10/21. 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
Mon 12/216:00 am -
1 stop3h 50m
Deal found 10/21![Delta logo]()
$381
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/106:50 am -
Nonstop1h 52m
Fri 11/135:58 pm -
Nonstop2h 04m
Deal found 10/23![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 10/21. 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 11/176:00 am -
1 stop5h 05m
Tue 11/173:55 pm -
2 stops7h 50m
Deal found 10/21![Southwest logo]()
$400
This Delta deal was found by Cheapflights users on 10/24. 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 49m
Deal found 10/24![Delta logo]()
$418
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/266:29 am -
Nonstop1h 52m
Mon 11/305:58 pm -
Nonstop2h 04m
Deal found 10/24![United Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 10/23. 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 11/135:30 am -
2 stops7h 55m
Sun 11/154:55 pm -
1 stop8h 00m
Deal found 10/23![Southwest logo]()
$400
This Delta deal was found by Cheapflights users on 10/25. 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 11/206:44 pm -
1 stop4h 15m
Mon 11/236:35 am -
1 stop4h 11m
Deal found 10/25![Delta logo]()
$433
This Southwest deal was found by Cheapflights users on 10/23. 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 11/125:30 am -
2 stops7h 55m
Thu 11/197:25 am -
2 stops6h 30m
Deal found 10/23![Southwest logo]()
$405
This United Airlines deal was found by Cheapflights users on 10/21. 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 4/202:12 pm -
Nonstop1h 35m
Wed 4/2110:30 am -
Nonstop2h 03m
Deal found 10/21![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/202:18 pm -
Nonstop1h 44m
Fri 11/276:30 am -
Nonstop2h 03m
Deal found 10/22![United Airlines logo]()
$423
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/122:18 pm -
Nonstop1h 44m
Sun 11/156:00 am -
1 stop4h 45m
Deal found 10/22![United Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 10/20. 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 3/1010:35 am -
Nonstop1h 35m
Sun 3/1410:09 am -
Nonstop2h 10m
Deal found 10/20![United Airlines logo]()
$439
Last-minute flights from Chicago to BuffaloDiscover last-minute flight deals from Chicago to Buffalo. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Buffalo. Data last updated October 25, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 10/21. 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 11/57:50 pm -
1 stop10h 17m
Mon 11/91:48 pm -
1 stop5h 57m
Deal found 10/21![Frontier logo]()
$291
This Delta deal was found by Cheapflights users on 10/21. 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 11/91:31 pm -
1 stop4h 42m
Tue 11/106:35 am -
1 stop4h 11m
Deal found 10/21![Delta logo]()
$283
This Delta deal was found by Cheapflights users on 10/21. 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 11/97:15 pm -
1 stop3h 43m
Tue 11/1012:00 pm -
1 stop5h 18m
Deal found 10/21![Delta logo]()
$283
This Southwest deal was found by Cheapflights users on 10/20. 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 11/1312:50 pm -
2 stops11h 15m
Sun 11/157:20 am -
Nonstop1h 50m
Deal found 10/20![Southwest logo]()
$282
This Southwest deal was found by Cheapflights users on 10/21. 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 11/131:20 pm -
2 stops9h 05m
Sat 11/1410:10 am -
1 stop7h 20m
Deal found 10/21![Southwest logo]()
$286
This Southwest deal was found by Cheapflights users on 10/21. 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 11/131:20 pm -
2 stops9h 05m
Mon 11/163:55 pm -
2 stops7h 50m
Deal found 10/21![Southwest logo]()
$291
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/133:19 pm -
Nonstop1h 46m
Sat 11/146:46 pm -
Nonstop2h 14m
Deal found 10/21![American Airlines logo]()
$300
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 10/21![Frontier logo]()
$290
This Mytrip deal was found by Cheapflights users on 10/21. 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.
Mon 11/235:40 am -
1 stop13h 44m
Wed 11/259:20 pm -
2 stops26h 58m
Deal found 10/21![Frontier logo]()
$307
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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.
Wed 11/255:12 pm -
1 stop18h 16m
Sun 11/299:20 pm -
1 stop28h 23m
Deal found 10/21![Frontier logo]()
$297
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/268:15 am -
Nonstop1h 45m
Fri 11/277:00 am -
1 stop8h 22m
Deal found 10/22![American Airlines logo]()
$308
This Mytrip deal was found by Cheapflights users on 10/22. 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 11/275:40 am -
1 stop13h 44m
Wed 12/21:15 pm -
2 stops12h 44m
Deal found 10/22![Frontier logo]()
$294
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 25, 2026.
Search for one-way flight options from Chicago to Buffalo. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Flightnetwork deal was found by Cheapflights users on 10/21. 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 Flightnetwork 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 10/21![Frontier logo]()
$101
This Cheapflightsfares deal was found by Cheapflights users on 10/24. 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.
Wed 1/205:01 am -
1 stop14h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Frontier logo]()
$104
This Trip.com deal was found by Cheapflights users on 10/23. 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.
Sat 12/198:35 pm -
1 stop20h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/13:55 pm -
1 stop19h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$115
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 12/218:35 pm -
1 stop20h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$116
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 12/215:58 am -
1 stop10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$116
This Mytrip deal was found by Cheapflights users on 10/22. 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.
Sun 12/610:37 pm -
1 stop12h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/112:33 pm -
1 stop22h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$124
This Frontier deal was found by Cheapflights users on 10/20. 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 11/218:28 am -
1 stop11h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$126
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/92:18 pm -
Nonstop1h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$126
This Southwest deal was found by Cheapflights users on 10/23. 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 11/97:50 am -
Nonstop1h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Southwest logo]()
$131
This American Airlines deal was found by Cheapflights users on 10/24. 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.
Mon 12/217:23 am -
Nonstop1h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![American Airlines 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 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (Delta) |
One-way from | $101 (Flightnetwork) |
Popular in | October |
Cheapest in | April |
Average price | $516 |
Good round-trip deal | $375 or less |
Good one-way deal | $170 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 25, 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
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Mon 11/9
2:18 pm-5:02 pm
Nonstop1h 44m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$126
Quickest round-trip
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Mon 11/23
6:40 pm-9:15 pm
Nonstop1h 35m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$131
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Sun 12/6
6:40 pm-9:15 pm
Nonstop1h 35m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$131
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Wed 12/9
10:29 am-1:17 pm
Nonstop1h 48m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$132
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Fri 12/18
8:35 pm-8:43 pm
1 stop23h 08m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$133
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Sat 12/12
6:41 pm-10:48 pm
1 stop3h 07m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$141
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Fri 11/27
7:30 am-2:25 pm
1 stop5h 55m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$141
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Thu 12/17
1:41 pm-7:00 pm
1 stop4h 19m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$142
ChicagoBuffalo
MDW Chicago Midway - BUF Buffalo
MDWBUF
Chicago Midway
Mon 11/9
1:31 pm-7:13 pm
1 stop4h 42m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$142
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Sat 11/7
4:00 pm-5:52 pm
1 stop24h 52m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
Showing 1-10 of 38 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 | |
| Price Accuracy2 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 October is currently the most expensive (average of $448). 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 25, 2026.
Unlike in the evening, 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 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 October 25, 2026.
The most flights from CHI to BUF are scheduled on a Saturday (33 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 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 $326 and $492 in November.The cheapest round-trip price found within the last 5 days was $283 on Delta (Nov 9-Nov 10).
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 24, 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. Tuesday 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 October 25, 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.
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.4
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.4
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.4
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.4
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.4
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 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 25, 2026.
Complete your trip
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Chicago and Buffalo flights
Browse other Chicago and Buffalo flight options. Last updated on October 25, 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 25, 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 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$254 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$240 | Average$364 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$244 | Average$406 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$281 | Average$414 | FlexibilityNo cancel fee | On-time63% |