$106+ Cheap flights from O'Hare Intl (ORD) 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUF
Oct 20 — Oct 271
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from O'Hare Intl 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 O'Hare Intl to Buffalo are usually found in January or February, booked 83 days in advance, depart on a Saturday or Thursday and return on a Saturday
Cheap flight deals from O'Hare Intl to Buffalo
Cheapest
Best
Last-minute
One-way
Cheapest flights from O'Hare Intl to BuffaloExplore the most affordable flight options available from O'Hare Intl to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 20, 2026.
Explore the most affordable flight options available from O'Hare Intl to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 20, 2026.
This Frontier deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:15 am -
1 stop11h 31m
Fri 12/1111:38 am -
1 stop9h 38m
Deal found 9/16![Frontier logo]()
$247
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/106:29 am -
Nonstop1h 39m
Wed 10/1410:46 am -
Nonstop1h 59m
Deal found 9/17![United Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:44 pm -
1 stop16h 15m
Tue 10/206:51 pm -
1 stop14h 00m
Deal found 9/15![Frontier logo]()
$257
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:03 am -
Nonstop1h 50m
Tue 10/207:00 am -
1 stop5h 05m
Deal found 9/15![American Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/28:13 pm -
2 stops40h 02m
Mon 11/91:48 pm -
1 stop24h 03m
Deal found 9/18![Frontier logo]()
$264
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:29 am -
Nonstop1h 39m
Mon 10/1210:46 am -
Nonstop1h 59m
Deal found 9/16![United Airlines logo]()
$269
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/106:00 am -
1 stop5h 59m
Wed 10/141:44 pm -
1 stop5h 47m
Deal found 9/17![Frontier logo]()
$270
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Tue 10/138:03 am -
Nonstop1h 50m
Tue 10/135:50 pm -
Nonstop2h 10m
Deal found 9/17![American Airlines logo]()
$271
This CheapOair deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Thu 11/265:12 pm -
1 stop26h 12m
Mon 11/309:20 pm -
1 stop28h 39m
Deal found 9/18![Frontier logo]()
$278
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:20 pm -
Nonstop1h 48m
Thu 10/155:57 pm -
1 stop6h 39m
Deal found 9/15![American Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/102:52 pm -
1 stop5h 37m
Wed 10/148:00 am -
Nonstop2h 05m
Deal found 9/17![American Airlines logo]()
$281
Best flights from O'Hare Intl to BuffaloDiscover carefully curated flight deals from O'Hare Intl to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 20, 2026.
Discover carefully curated flight deals from O'Hare Intl to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 20, 2026.
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/172:00 pm -
Nonstop1h 43m
Sat 10/2410:46 am -
Nonstop1h 59m
Deal found 9/17![United Airlines logo]()
$251
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
1 stop6h 29m
Sun 11/112:15 pm -
1 stop5h 17m
Deal found 9/16![Delta logo]()
$383
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 pm -
Nonstop1h 47m
Thu 10/2210:46 am -
Nonstop1h 59m
Deal found 9/15![United Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:50 am -
Nonstop1h 39m
Mon 10/127:00 am -
Nonstop2h 00m
Deal found 9/16![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:50 am -
Nonstop1h 39m
Mon 10/266:30 am -
Nonstop2h 03m
Deal found 9/15![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:50 am -
Nonstop1h 39m
Fri 10/97:00 am -
Nonstop2h 00m
Deal found 9/15![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:29 am -
Nonstop1h 39m
Mon 10/1210:46 am -
Nonstop1h 59m
Deal found 9/16![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:18 pm -
Nonstop1h 44m
Sat 11/286:00 am -
Nonstop1h 59m
Deal found 9/16![United Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:00 pm -
Nonstop1h 47m
Sun 10/1110:46 am -
Nonstop1h 59m
Deal found 9/15![United Airlines logo]()
$360
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:25 am -
Nonstop1h 46m
Mon 10/127:00 am -
Nonstop2h 00m
Deal found 9/15![United Airlines logo]()
$378
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/162:00 pm -
Nonstop1h 43m
Sun 10/186:00 am -
1 stop4h 38m
Deal found 9/17![United Airlines logo]()
$392
Last-minute flights from O'Hare Intl to BuffaloDiscover last-minute flight deals from O'Hare Intl to Buffalo. Data last updated September 20, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Buffalo. Data last updated September 20, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/106:29 am -
Nonstop1h 39m
Wed 10/1410:46 am -
Nonstop1h 59m
Deal found 9/17![United Airlines logo]()
$251
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:29 am -
Nonstop1h 39m
Thu 10/157:00 am -
Nonstop2h 00m
Deal found 9/15![United Airlines logo]()
$269
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/106:00 am -
1 stop5h 59m
Wed 10/141:44 pm -
1 stop5h 47m
Deal found 9/17![Frontier logo]()
$270
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:20 pm -
Nonstop1h 48m
Thu 10/155:57 pm -
1 stop6h 39m
Deal found 9/15![American Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/108:03 am -
Nonstop1h 42m
Sat 10/106:33 pm -
1 stop6h 11m
Deal found 9/17![American Airlines logo]()
$281
This Super.com deal was found by Cheapflights users on 9/15. 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.
Sat 10/106:00 am -
1 stop5h 59m
Thu 10/1512:53 pm -
1 stop19h 38m
Deal found 9/15![Frontier logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:44 pm -
1 stop16h 15m
Tue 10/206:51 pm -
1 stop14h 00m
Deal found 9/15![Frontier logo]()
$257
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:03 am -
Nonstop1h 50m
Tue 10/207:00 am -
1 stop5h 05m
Deal found 9/15![American Airlines logo]()
$261
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Tue 10/138:03 am -
Nonstop1h 50m
Tue 10/135:50 pm -
Nonstop2h 10m
Deal found 9/17![American Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 pm -
Nonstop1h 47m
Thu 10/2210:46 am -
Nonstop1h 59m
Deal found 9/15![United Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:01 pm -
2 stops15h 58m
Wed 10/211:44 pm -
1 stop20h 37m
Deal found 9/15![Frontier logo]()
$286
One-way flights from O'Hare Intl to BuffaloSearch for one-way flight options from O'Hare Intl to Buffalo. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
Search for one-way flight options from O'Hare Intl to Buffalo. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
This Frontier deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/146:00 am -
1 stop5h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/177:15 am -
1 stop29h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:28 pm -
1 stop17h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$108
This Super.com deal was found by Cheapflights users on 9/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:31 am -
1 stop5h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:00 am -
1 stop29h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$114
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/297:50 pm -
1 stop16h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/157:32 pm -
1 stop15h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/208:46 am -
1 stop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$119
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/176:50 am -
Nonstop1h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$126
Find flight deals from O'Hare Intl to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 September 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $247 (Frontier) |
One-way from | $106 (Frontier) |
Popular in | April |
Cheapest in | January |
Average price | $361 |
Good round-trip deal | $298 or less |
Good one-way deal | $195 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl 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 September 20, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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
Sat 10/17
2:00 pm-4:43 pm
Nonstop1h 43m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$126
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Sat 12/12
7:00 am-1:24 pm
1 stop5h 24m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$136
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Wed 12/16
6:00 am-2:37 pm
1 stop7h 37m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$136
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Thu 10/29
5:51 pm-8:36 pm
Nonstop1h 45m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Thu 10/15
2:00 pm-4:43 pm
Nonstop1h 43m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Sat 10/17
7:00 am-11:35 am
1 stop3h 35m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$146
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Thu 10/15
5:29 pm-11:59 pm
1 stop5h 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
Mon 12/14
6:00 pm-12:15 am
1 stop5h 15m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$154
Quickest round-trip
ChicagoBuffalo
ORD Chicago O'Hare Intl - BUF Buffalo
ORDBUF
Chicago O'Hare Intl
Sat 10/10
6:29 am-9:08 am
Nonstop1h 39m
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
Wed 12/16
6:55 am-9:44 am
Nonstop1h 49m
Buffalo
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$161
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl 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 O'Hare Intl to Buffalo in September.
| 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 O'Hare Intl Airport-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-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 O'Hare Intl Airport-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 O'Hare Intl to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from O'Hare Intl with our price prediction graph.
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 O'Hare Intl Airport to Buffalo
Prices
Airlines
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Buffalo?
The price you pay for your flight from Chicago O'Hare Intl Airport to Buffalo may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Buffalo?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Buffalo (average of $276). Flying from Chicago O'Hare Intl Airport to Buffalo in April is currently the most expensive (average of $531). 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 ORD to BUF?
Find hourly flight availability from O'Hare Intl 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 September 20, 2026.
It’s typically best to fly out from Chicago O'Hare Intl Airport to Buffalo at noon. Doing so could potentially save you 24% on the flight price compared to flying in the afternoon, which is usually more expensive.
What is the cheapest day to fly from Chicago O'Hare Intl Airport to Buffalo?
Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Buffalo. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Buffalo flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons 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 September 20, 2026.
See what other customers who have flown with United Airlines,JetBlue, andAmerican Airlines from Chicago O'Hare Intl Airport to Buffalo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Crew
8.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Crew
8.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Crew
8.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl 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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Buffalo flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from O'Hare Intl
Popular flights
Alternative routes for O'Hare Intl to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
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 September 20, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from O'Hare Intl to Buffalo by cabin class
Find flights from O'Hare Intl to Buffalo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
O'Hare Intl and Buffalo flights
Browse other O'Hare Intl and Buffalo flight options. Last updated on September 20, 2026.
Other flights from O'Hare Intl
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on September 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from O'Hare Intl to Buffalo
Discover the top 3 airlines that operate flights from O'Hare Intl 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 September 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$254 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$240 | Average$354 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$251 | Average$422 | FlexibilityNo cancel fee | On-time69% |