$74+ Cheap flights from Buffalo (BUF) to Chicago (CHI)
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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — CHI
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Chicago 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 Buffalo to Chicago are usually found in September or February, booked 35 days in advance, depart on a Saturday or Thursday and return on a Saturday
Cheap flight deals from Buffalo to Chicago
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Cheapest flights from Buffalo to ChicagoExplore the most affordable flight options available from Buffalo to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
Explore the most affordable flight options available from Buffalo to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
This American Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:11 am -
Nonstop2h 06m
Sun 9/62:19 pm -
Nonstop1h 45m
Deal found 8/9![American Airlines logo]()
$239
This CheapOair deal was found by Cheapflights users on 8/6. 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.
Tue 9/89:29 pm -
1 stop26h 30m
Thu 9/103:00 pm -
1 stop6h 56m
Deal found 8/6![Multiple Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 8/7. 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 9/510:50 am -
1 stop6h 50m
Sun 9/69:25 am -
Nonstop1h 30m
Deal found 8/7![Southwest logo]()
$247
This American Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:32 am -
1 stop4h 58m
Sat 9/52:19 pm -
Nonstop1h 45m
Deal found 8/7![American Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 8/9. 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 9/243:55 pm -
1 stop6h 05m
Tue 9/296:30 am -
1 stop6h 50m
Deal found 8/9![Southwest logo]()
$248
This Expedia deal was found by Cheapflights users on 8/8. 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.
Mon 9/76:54 pm -
1 stop29h 14m
Mon 9/143:50 pm -
1 stop24h 59m
Deal found 8/8![Frontier logo]()
$250
This Frontier deal was found by Cheapflights users on 8/6. 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 9/411:36 am -
1 stop12h 11m
Fri 9/116:25 am -
1 stop5h 30m
Deal found 8/6![Frontier logo]()
$251
This Priceline deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:40 pm -
1 stop5h 43m
Sun 9/133:00 pm -
1 stop6h 56m
Deal found 8/7![Multiple Airlines logo]()
$251
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:09 pm -
Nonstop2h 18m
Sun 9/62:19 pm -
Nonstop1h 45m
Deal found 8/10![American Airlines logo]()
$253
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:40 pm -
1 stop5h 43m
Wed 10/76:20 am -
1 stop5h 35m
Deal found 8/10![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/156:51 pm -
1 stop29h 08m
Fri 9/187:28 pm -
1 stop16h 27m
Deal found 8/8![Frontier logo]()
$256
This Delta deal was found by Cheapflights users on 8/7. 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 9/56:40 am -
1 stop5h 02m
Sat 9/55:18 pm -
1 stop4h 51m
Deal found 8/7![Delta logo]()
$257
Best flights from Buffalo to ChicagoDiscover carefully curated flight deals from Buffalo to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Buffalo to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This Southwest deal was found by Cheapflights users on 8/7. 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 9/510:50 am -
1 stop6h 50m
Sun 9/69:25 am -
Nonstop1h 30m
Deal found 8/7![Southwest logo]()
$247
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:53 am -
1 stop6h 24m
Thu 10/89:16 pm -
Nonstop1h 43m
Deal found 8/10![American Airlines logo]()
$258
This JetBlue deal was found by Cheapflights users on 8/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:00 am -
1 stop7h 45m
Sun 10/43:00 pm -
1 stop6h 56m
Deal found 8/10![JetBlue logo]()
$261
This United Airlines deal was found by Cheapflights users on 8/7. 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 8/3110:30 am -
Nonstop1h 59m
Thu 9/36:15 pm -
Nonstop1h 52m
Deal found 8/7![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 8/5. 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 9/246:20 am -
1 stop3h 47m
Sat 9/266:40 pm -
1 stop2h 55m
Deal found 8/5![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:09 pm -
Nonstop2h 10m
Tue 9/297:20 pm -
Nonstop1h 50m
Deal found 8/10![American Airlines logo]()
$260
This JetBlue deal was found by Cheapflights users on 8/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am -
1 stop7h 45m
Fri 10/23:00 pm -
1 stop6h 56m
Deal found 8/10![JetBlue logo]()
$261
This Southwest deal was found by Cheapflights users on 8/7. 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 9/512:45 pm -
1 stop8h 00m
Sat 9/123:15 pm -
Nonstop1h 30m
Deal found 8/7![Southwest logo]()
$268
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/110:30 am -
Nonstop1h 59m
Wed 9/210:25 am -
Nonstop1h 51m
Deal found 8/9![United Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 8/7. 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.
Sun 9/276:20 am -
1 stop3h 47m
Thu 10/17:01 pm -
1 stop3h 52m
Deal found 8/7![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 8/5. 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 12/124:35 pm -
Nonstop1h 50m
Mon 12/148:10 am -
Nonstop1h 30m
Deal found 8/5![Southwest logo]()
$279
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/2110:30 am -
Nonstop1h 59m
Fri 9/256:50 am -
Nonstop1h 39m
Deal found 8/7![United Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 8/8. 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 9/173:53 pm -
1 stop5h 37m
Mon 9/211:55 pm -
1 stop4h 09m
Deal found 8/8![Delta logo]()
$313
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:09 pm -
Nonstop2h 10m
Sun 9/208:45 am -
1 stop4h 41m
Deal found 8/10![American Airlines logo]()
$323
This Southwest deal was found by Cheapflights users on 8/5. 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 8/276:00 am -
2 stops7h 25m
Mon 8/3112:45 pm -
Nonstop1h 30m
Deal found 8/5![Southwest logo]()
$294
This Delta deal was found by Cheapflights users on 8/8. 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.
Wed 9/166:20 am -
1 stop5h 17m
Mon 9/215:10 pm -
1 stop5h 43m
Deal found 8/8![Delta logo]()
$313
This Southwest deal was found by Cheapflights users on 8/7. 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 9/217:10 pm -
Nonstop1h 35m
Fri 9/253:15 pm -
1 stop6h 05m
Deal found 8/7![Southwest logo]()
$296
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/216:55 am -
Nonstop2h 00m
Sun 9/276:50 am -
Nonstop1h 39m
Deal found 8/6![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 8/8. 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 9/186:30 am -
2 stops9h 00m
Sun 9/208:10 am -
Nonstop1h 40m
Deal found 8/8![Southwest logo]()
$308
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:51 pm -
Nonstop2h 04m
Tue 10/66:50 am -
Nonstop1h 39m
Deal found 8/10![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 8/9. 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 9/13:00 pm -
2 stops8h 20m
Wed 9/26:00 pm -
Nonstop1h 35m
Deal found 8/9![Southwest logo]()
$308
This Southwest deal was found by Cheapflights users on 8/7. 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 9/228:40 am -
Nonstop1h 35m
Thu 9/248:05 am -
Nonstop1h 40m
Deal found 8/7![Southwest logo]()
$309
Last-minute flights from Buffalo to ChicagoDiscover last-minute flight deals from Buffalo to Chicago. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Chicago. Data last updated August 10, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:36 am -
1 stop9h 32m
Wed 9/27:44 pm -
1 stop12h 39m
Deal found 8/8![Frontier logo]()
$255
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:09 pm -
Nonstop2h 18m
Sun 9/62:19 pm -
Nonstop1h 45m
Deal found 8/10![American Airlines logo]()
$253
This Frontier deal was found by Cheapflights users on 8/6. 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 9/411:36 am -
1 stop12h 11m
Fri 9/116:25 am -
1 stop5h 30m
Deal found 8/6![Frontier logo]()
$251
This American Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:11 am -
Nonstop2h 06m
Sun 9/62:19 pm -
Nonstop1h 45m
Deal found 8/9![American Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 8/7. 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 9/510:50 am -
1 stop6h 50m
Sun 9/69:25 am -
Nonstop1h 30m
Deal found 8/7![Southwest logo]()
$247
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:32 am -
1 stop4h 58m
Sat 9/52:19 pm -
Nonstop1h 45m
Deal found 8/10![American Airlines logo]()
$249
This Expedia deal was found by Cheapflights users on 8/8. 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.
Mon 9/76:54 pm -
1 stop29h 14m
Mon 9/143:50 pm -
1 stop24h 59m
Deal found 8/8![Frontier logo]()
$250
This CheapOair deal was found by Cheapflights users on 8/6. 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.
Tue 9/89:29 pm -
1 stop26h 30m
Thu 9/103:00 pm -
1 stop6h 56m
Deal found 8/6![Multiple Airlines logo]()
$241
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:56 pm -
Nonstop2h 19m
Fri 9/115:54 pm -
1 stop5h 00m
Deal found 8/10![American Airlines logo]()
$242
This Delta deal was found by Cheapflights users on 8/10. 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.
Wed 9/96:28 pm -
1 stop4h 50m
Fri 9/117:05 am -
1 stop3h 17m
Deal found 8/10![Delta logo]()
$252
This Priceline deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:40 pm -
1 stop5h 43m
Sun 9/133:00 pm -
1 stop6h 56m
Deal found 8/7![Multiple Airlines logo]()
$251
This Southwest deal was found by Cheapflights users on 8/9. 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 9/243:55 pm -
1 stop6h 05m
Tue 9/296:30 am -
1 stop6h 50m
Deal found 8/9![Southwest logo]()
$248
One-way flights from Buffalo to ChicagoSearch for one-way flight options from Buffalo to Chicago. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Buffalo to Chicago. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/101:13 pm -
1 stop8h 15m
Deal found 8/10![Frontier logo]()
$74
This Trip.com deal was found by Cheapflights users on 8/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:13 pm -
1 stop23h 49m
Deal found 8/10![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:13 pm -
1 stop20h 02m
Deal found 8/10![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:13 pm -
1 stop7h 31m
Deal found 8/10![Frontier logo]()
$90
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:40 pm -
1 stop5h 43m
Deal found 8/10![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 8/6. 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 9/301:40 pm -
1 stop5h 11m
Deal found 8/6![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 8/7. 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 9/91:40 pm -
1 stop5h 11m
Deal found 8/7![Frontier logo]()
$100
This Frontier deal was found by Cheapflights users on 8/6. 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 9/91:40 pm -
1 stop5h 43m
Deal found 8/6![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 8/7. 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 9/511:36 am -
1 stop12h 11m
Deal found 8/7![Frontier logo]()
$104
This Super.com deal was found by Cheapflights users on 8/7. 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 9/511:36 am -
1 stop9h 32m
Deal found 8/7![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 8/9. 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 10/71:40 pm -
1 stop5h 11m
Deal found 8/9![Frontier logo]()
$105
This Super.com deal was found by Cheapflights users on 8/9. 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.
Tue 9/811:36 am -
1 stop12h 11m
Deal found 8/9![Frontier logo]()
$110
Find flight deals from Buffalo to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Chicago (CHI). 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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (American Airlines) |
One-way from | $74 (Frontier) |
Popular in | March |
Cheapest in | September |
Average price | $349 |
Good round-trip deal | $353 or less |
Good one-way deal | $192 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to Chicago 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 10, 2026.
Use the filters below to find and compare flights from Buffalo to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloChicago
BUF Buffalo - MDW Chicago Midway
BUFMDW
Buffalo
Sat 9/5
10:50 am-4:40 pm
1 stop6h 50m
Chicago Midway
Sun 9/6
9:25 am-11:55 am
Nonstop1h 30m
$247
BuffaloChicago
BUF Buffalo - ORD Chicago O'Hare Intl
BUFORD
Buffalo
Wed 10/7
11:53 am-5:17 pm
1 stop6h 24m
Chicago O'Hare Intl
Thu 10/8
9:16 pm-11:59 pm
Nonstop1h 43m
$258
BuffaloChicago
BUF Buffalo - ORD Chicago O'Hare Intl
BUFORD
Buffalo
Fri 9/25
12:09 pm-1:19 pm
Nonstop2h 10m
Chicago O'Hare Intl
Tue 9/29
7:20 pm-10:10 pm
Nonstop1h 50m
$260
BuffaloChicago
BUF Buffalo - ORD Chicago O'Hare Intl
BUFORD
Buffalo
Fri 10/2
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Sun 10/4
3:00 pm-10:56 pm
1 stop6h 56m
$261
BuffaloChicago
BUF Buffalo - ORD Chicago O'Hare Intl
BUFORD
Buffalo
Tue 9/29
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Fri 10/2
3:00 pm-10:56 pm
1 stop6h 56m
$261
BuffaloChicago
BUF Buffalo - MDW Chicago Midway
BUFMDW
Buffalo
Sat 9/5
12:45 pm-7:45 pm
1 stop8h 00m
Chicago Midway
Sat 9/12
3:15 pm-5:45 pm
Nonstop1h 30m
$268
BuffaloChicago
BUF Buffalo - ORD Chicago O'Hare Intl
BUFORD
Buffalo
Mon 8/31
10:30 am-11:29 am
Nonstop1h 59m
Chicago O'Hare Intl
Thu 9/3
6:15 pm-9:07 pm
Nonstop1h 52m
$279
BuffaloChicago
BUF Buffalo - MDW Chicago Midway
BUFMDW
Buffalo
Sat 12/12
4:35 pm-5:25 pm
Nonstop1h 50m
Chicago Midway
Mon 12/14
8:10 am-10:40 am
Nonstop1h 30m
$279
BuffaloChicago
BUF Buffalo - ORD Chicago O'Hare Intl
BUFORD
Buffalo
Tue 9/1
10:30 am-11:29 am
Nonstop1h 59m
Chicago O'Hare Intl
Wed 9/2
10:25 am-1:16 pm
Nonstop1h 51m
$293
BuffaloChicago
BUF Buffalo - MDW Chicago Midway
BUFMDW
Buffalo
Thu 8/27
6:00 am-12:25 pm
2 stops7h 25m
Chicago Midway
Mon 8/31
12:45 pm-3:15 pm
Nonstop1h 30m
$294
Showing 1-10 of 43 resultsSorted by cheapest first
Compare providers for flights from Buffalo to Chicago
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 Buffalo to Chicago in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Buffalo-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Chicago flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-Chicago 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 Buffalo-Chicago 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 Buffalo to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Buffalo with our price prediction graph.
BUF-CHI
BUF-ORD
BUF-MDW
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 Buffalo to Chicago
BUF-CHI
BUF-ORD
BUF-MDW
What is the cheapest month to book a flight from Buffalo to Chicago?
Currently, January is the cheapest month in which you can book a flight from Buffalo to Chicago (average of $278). Flying from Buffalo to Chicago in March 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 BUF to CHI?
Find hourly flight availability from Buffalo to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 10, 2026.
It’s optimal to fly from Buffalo to Chicago in the afternoon. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight at noon.
Weekly flight availability from Buffalo to Chicago
Explore weekly flight availability from Buffalo to Chicago. 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 10, 2026.
The most flights from BUF to CHI are scheduled on a Monday (36 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).
How much does it cost to fly round-trip from Buffalo to Chicago?
Airfare is below average for this route at the moment.
Buffalo to Chicago flights typically cost between $264 and $384 in September.The cheapest round-trip price found within the last 5 days was $239 on American Airlines (Sep 5-Sep 6).
How far ahead should I book a flight from Buffalo to Chicago?
The best time to book flights from Buffalo to Chicago is 57 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 Buffalo to Chicago?
Use this chart to determine the cheapest time to fly round-trip from Buffalo to Chicago. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Buffalo to Chicago flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated August 10, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from Buffalo to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Buffalo to Chicago. 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 Chicago?
Book flights to Chicago if you plan to visit one of these locationsBenton Harbor
Lansing
Merrillville
Valparaiso
Hammond
Saint Joseph
Porter
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Other flights to Chicago
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Complete your trip
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Buffalo and Chicago flights
Browse other Buffalo and Chicago flight options. Last updated on August 10, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Buffalo to Chicago
Discover the top 4 airlines that operate flights from Buffalo to Chicago. 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 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$92 | Average$202 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$145 | Average$346 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$232 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$253 | Average$389 | FlexibilityNo cancel fee | On-time63% |