$113+ Cheap flights from Denver to Buffalo (DEN - BUF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BUF
Aug 15 — Aug 221
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Denver 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 Denver Intl to Buffalo are usually found in September or October, booked 61 days in advance, depart on a Friday or Wednesday and return on a Friday
Cheap flight deals from Denver to Buffalo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to BuffaloExplore the most affordable flight options available from Denver to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2026.
Explore the most affordable flight options available from Denver to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2026.
This Priceline deal was found by Cheapflights users on 7/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:59 pm
DEN
- BUF
1 stop8h 09m
JetBlue
Wed 9/26:00 am
BUF
- DEN
1 stop8h 55m
JetBlue
Deal found 7/16![JetBlue logo]()
$199
This Priceline deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:59 pm
DEN
- BUF
1 stop8h 30m
Multiple Airlines
Tue 8/256:00 am
BUF
- DEN
1 stop9h 05m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$220
This Expedia deal was found by Cheapflights users on 7/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:45 pm
DEN
- BUF
1 stop6h 58m
Multiple Airlines
Wed 8/196:54 pm
BUF
- DEN
1 stop14h 39m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$233
This Expedia deal was found by Cheapflights users on 7/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:25 pm
DEN
- BUF
1 stop7h 43m
JetBlue
Sun 9/66:00 am
BUF
- DEN
1 stop9h 04m
JetBlue
Deal found 7/16![JetBlue logo]()
$237
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
DEN
- BUF
1 stop10h 09m
Frontier
Mon 8/2411:36 am
BUF
- DEN
1 stop12h 34m
Frontier
Deal found 7/15![Frontier logo]()
$240
This Priceline deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:59 pm
DEN
- BUF
1 stop8h 30m
Multiple Airlines
Tue 9/16:00 am
BUF
- DEN
1 stop9h 04m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$244
This JetBlue deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:55 pm
DEN
- BUF
1 stop5h 57m
JetBlue
Tue 8/256:00 am
BUF
- DEN
1 stop9h 05m
JetBlue
Deal found 7/14![JetBlue logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Tue 8/1811:36 am
BUF
- DEN
1 stop12h 29m
Frontier
Deal found 7/13![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Wed 8/511:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Wed 8/122:48 pm
BUF
- DEN
1 stop9h 17m
Frontier
Deal found 7/15![Frontier logo]()
$249
This Frontier deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:59 pm
DEN
- BUF
1 stop11h 54m
Frontier
Tue 8/2511:36 am
BUF
- DEN
1 stop12h 29m
Frontier
Deal found 7/13![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:59 pm
DEN
- BUF
1 stop10h 22m
Frontier
Mon 9/281:16 pm
BUF
- DEN
1 stop22h 15m
Frontier
Deal found 7/14![Frontier logo]()
$251
This Frontier deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:59 pm
DEN
- BUF
1 stop11h 54m
Frontier
Sat 8/226:54 pm
BUF
- DEN
1 stop14h 39m
Frontier
Deal found 7/14![Frontier logo]()
$252
Best flights from Denver to BuffaloDiscover carefully curated flight deals from Denver to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 16, 2026.
Discover carefully curated flight deals from Denver to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 16, 2026.
This Southwest deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:00 am
DEN
- BUF
1 stop7h 10m
Southwest
Thu 10/294:50 pm
BUF
- DEN
Nonstop3h 30m
Southwest
Deal found 7/11![Southwest logo]()
$319
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Wed 9/235:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Tue 9/2910:40 am
BUF
- DEN
1 stop5h 52m
United Airlines
Deal found 7/15![United Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Tue 9/155:58 pm
BUF
- DEN
1 stop5h 46m
United Airlines
Deal found 7/14![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:10 pm
DEN
- BUF
2 stops7h 40m
Southwest
Thu 8/206:30 am
BUF
- DEN
2 stops8h 35m
Southwest
Deal found 7/13![Southwest logo]()
$383
This United Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:33 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Wed 8/1210:30 am
BUF
- DEN
1 stop8h 04m
United Airlines
Deal found 7/11![United Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:00 am
DEN
- BUF
2 stops9h 40m
Southwest
Tue 8/258:05 am
BUF
- DEN
2 stops13h 50m
Southwest
Deal found 7/15![Southwest logo]()
$403
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Fri 8/218:55 am
BUF
- DEN
Nonstop3h 37m
United Airlines
Deal found 7/12![United Airlines logo]()
$373
This Southwest deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:10 am
DEN
- BUF
2 stops8h 05m
Southwest
Fri 11/208:10 am
BUF
- DEN
2 stops7h 50m
Southwest
Deal found 7/12![Southwest logo]()
$403
This United Airlines deal was found by Cheapflights users on 7/15. 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 8/215:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Tue 8/258:55 am
BUF
- DEN
Nonstop3h 37m
United Airlines
Deal found 7/15![United Airlines logo]()
$378
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Wed 9/235:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Wed 9/308:45 am
BUF
- DEN
Nonstop3h 37m
United Airlines
Deal found 7/15![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Wed 9/98:55 am
BUF
- DEN
Nonstop3h 37m
United Airlines
Deal found 7/12![United Airlines logo]()
$399
Last-minute flights from Denver to BuffaloDiscover last-minute flight deals from Denver to Buffalo. Data last updated July 16, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Buffalo. Data last updated July 16, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:03 am
DEN
- BUF
1 stop12h 11m
Frontier
Sat 8/810:02 pm
BUF
- DEN
1 stop12h 05m
Frontier
Deal found 7/14![Frontier logo]()
$253
This Expedia deal was found by Cheapflights users on 7/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:45 pm
DEN
- BUF
1 stop6h 58m
Multiple Airlines
Wed 8/196:54 pm
BUF
- DEN
1 stop14h 39m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Wed 8/511:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Wed 8/122:48 pm
BUF
- DEN
1 stop9h 17m
Frontier
Deal found 7/15![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Thu 8/64:10 pm
DEN
- BUF
2 stops41h 23m
Frontier
Tue 8/1111:29 am
BUF
- DEN
1 stop12h 36m
Frontier
Deal found 7/15![Frontier logo]()
$261
This JetBlue deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:55 pm
DEN
- BUF
1 stop5h 57m
JetBlue
Tue 8/256:00 am
BUF
- DEN
1 stop9h 05m
JetBlue
Deal found 7/14![JetBlue logo]()
$245
This Frontier deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:59 pm
DEN
- BUF
1 stop11h 54m
Frontier
Tue 8/2511:36 am
BUF
- DEN
1 stop12h 29m
Frontier
Deal found 7/13![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/1111:59 pm
DEN
- BUF
1 stop11h 54m
Frontier
Tue 8/1811:36 am
BUF
- DEN
1 stop12h 29m
Frontier
Deal found 7/15![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:03 am
DEN
- BUF
1 stop12h 45m
Frontier
Mon 8/172:48 pm
BUF
- DEN
1 stop9h 40m
Frontier
Deal found 7/15![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Tue 8/1811:36 am
BUF
- DEN
1 stop12h 29m
Frontier
Deal found 7/13![Frontier logo]()
$248
This Priceline deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:59 pm
DEN
- BUF
1 stop8h 30m
Multiple Airlines
Tue 8/256:00 am
BUF
- DEN
1 stop9h 05m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$220
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
DEN
- BUF
1 stop10h 09m
Frontier
Mon 8/2411:36 am
BUF
- DEN
1 stop12h 34m
Frontier
Deal found 7/15![Frontier logo]()
$240
This Priceline deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:59 pm
DEN
- BUF
1 stop8h 30m
Multiple Airlines
Tue 9/16:00 am
BUF
- DEN
1 stop9h 04m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$244
One-way flights from Denver to BuffaloSearch for one-way flight options from Denver to Buffalo. Find affordable one-way fares based on user searches. Data last updated July 16, 2026.
Search for one-way flight options from Denver to Buffalo. Find affordable one-way fares based on user searches. Data last updated July 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:43 am
DEN
- BUF
1 stop21h 46m
Frontier
Deal found 7/11![Frontier logo]()
$113
This JetBlue deal was found by Cheapflights users on 7/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:37 pm
DEN
- BUF
1 stop8h 00m
JetBlue
Deal found 7/16![JetBlue logo]()
$115
This JetBlue deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/911:37 pm
DEN
- BUF
1 stop8h 00m
JetBlue
Deal found 7/13![JetBlue logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:30 pm
DEN
- BUF
2 stops23h 23m
Frontier
Deal found 7/11![Frontier logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:05 am
DEN
- BUF
2 stops27h 24m
Frontier
Deal found 7/11![Frontier logo]()
$120
This Super.com deal was found by Cheapflights users on 7/15. 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.
Fri 8/71:55 pm
DEN
- BUF
1 stop7h 48m
JetBlue
Deal found 7/15![JetBlue logo]()
$121
This Super.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Deal found 7/14![Frontier logo]()
$124
This Priceline deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Deal found 7/13![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am
DEN
- BUF
1 stop9h 34m
Frontier
Deal found 7/14![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:59 pm
DEN
- BUF
1 stop10h 22m
Frontier
Deal found 7/13![Frontier logo]()
$128
Find flight deals from Denver to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 July 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $199 (Priceline) |
One-way from | $113 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $483 |
Good round-trip deal | $430 or less |
Good one-way deal | $259 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 16, 2026.
Use the filters below to find and compare flights from Denver to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Thu 10/15
5:00 am-2:10 pm
1 stop7h 10m
Buffalo
Thu 10/29
4:50 pm-6:20 pm
Nonstop3h 30m
$319
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 9/23
5:25 pm-10:37 pm
Nonstop3h 12m
Buffalo
Tue 9/29
10:40 am-2:32 pm
1 stop5h 52m
$319
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Sat 9/12
5:25 pm-10:37 pm
Nonstop3h 12m
Buffalo
Tue 9/15
5:58 pm-9:44 pm
1 stop5h 46m
$319
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Sat 8/8
5:33 pm-10:51 pm
Nonstop3h 18m
Buffalo
Wed 8/12
10:30 am-4:34 pm
1 stop8h 04m
$351
Quickest round-trip
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 8/19
5:25 pm-10:37 pm
Nonstop3h 12m
Buffalo
Fri 8/21
8:55 am-10:32 am
Nonstop3h 37m
$373
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Fri 8/21
5:25 pm-10:37 pm
Nonstop3h 12m
Buffalo
Tue 8/25
8:55 am-10:32 am
Nonstop3h 37m
$378
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Thu 8/13
12:10 pm-9:50 pm
2 stops7h 40m
Buffalo
Thu 8/20
6:30 am-1:05 pm
2 stops8h 35m
$383
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 9/23
5:25 pm-10:37 pm
Nonstop3h 12m
Buffalo
Wed 9/30
8:45 am-10:22 am
Nonstop3h 37m
$399
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Sat 9/5
5:25 pm-10:37 pm
Nonstop3h 12m
Buffalo
Wed 9/9
8:55 am-10:32 am
Nonstop3h 37m
$399
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Fri 8/21
11:00 am-10:40 pm
2 stops9h 40m
Buffalo
Tue 8/25
8:05 am-7:55 pm
2 stops13h 50m
$403
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Denver 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 Denver to Buffalo in July.
| 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 Denver-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-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 Denver-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 Denver to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from Denver with our price prediction graph.
DEN-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 Denver to Buffalo
How far ahead should I book a flight from Denver to Buffalo?
The best time to book flights from Denver to Buffalo is 60 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 month to book a flight from Denver to Buffalo?
Currently, September is the cheapest month in which you can book a flight from Denver to Buffalo (average of $251). Flying from Denver to Buffalo in June is currently the most expensive (average of $494). 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 DEN to BUF?
Find hourly flight availability from Denver 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 July 16, 2026.
It’s optimal to fly from Denver to Buffalo in the morning. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight at noon.
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 July 16, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Denver to Buffalo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Related info for your journey
Find useful and relevant information for your journey from Denver to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsLockport
Cheektowaga
Amherst
Williamsville
Orchard Park
Eden
Bowmansville
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 Denver
Popular flights
Alternative routes for Denver 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 July 16, 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 Denver to Buffalo by cabin class
Find flights from Denver to Buffalo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Denver and Buffalo flights
Browse other Denver and Buffalo flight options. Last updated on July 16, 2026.
Other flights from Denver
Browse through other flights departing from Denver. Flights are based on user searches made on Cheapflights and were last updated on July 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Denver to Buffalo
Discover the top 6 airlines that operate flights from Denver to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$246 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$326 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$182 | Average$299 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$198 | Average$302 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$199 | Average$445 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$490 | FlexibilityNo cancel fee | On-time63% |