$88+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BUF
Jun 15 — Jun 221
Round-trip
1 adult, Economy
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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
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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 October or September, booked 54 days in advance, depart on a Friday or Monday and return on a Friday
Cheap flight deals from Denver to Buffalo
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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 May 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 May 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 7/2211:46 pm
DEN
- BUF
1 stop8h 53m
Frontier
Thu 7/3011:35 am
BUF
- DEN
1 stop12h 30m
Frontier
Deal found 5/13![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/1811:42 pm
DEN
- BUF
1 stop12h 13m
Frontier
Fri 8/282:50 pm
BUF
- DEN
1 stop20h 08m
Frontier
Deal found 5/11![Frontier logo]()
$195
This Trip.com deal was found by Cheapflights users on 5/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:46 pm
DEN
- BUF
1 stop8h 53m
Frontier
Wed 7/292:50 pm
BUF
- DEN
1 stop9h 15m
Frontier
Deal found 5/13![Frontier logo]()
$206
This Frontier deal was found by Cheapflights users on 5/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:42 pm
DEN
- BUF
1 stop12h 13m
Frontier
Tue 9/18:57 pm
BUF
- DEN
1 stop13h 23m
Frontier
Deal found 5/11![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/156:30 am
DEN
- BUF
1 stop26h 09m
Frontier
Fri 8/282:50 pm
BUF
- DEN
1 stop20h 08m
Frontier
Deal found 5/11![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 8/196:30 am
DEN
- BUF
1 stop26h 10m
Frontier
Wed 9/22:50 pm
BUF
- DEN
1 stop9h 26m
Frontier
Deal found 5/13![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Wed 8/194:12 pm
DEN
- BUF
2 stops43h 43m
Frontier
Fri 8/282:50 pm
BUF
- DEN
1 stop20h 08m
Frontier
Deal found 5/11![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 8/196:30 am
DEN
- BUF
1 stop26h 10m
Frontier
Sun 8/3011:35 am
BUF
- DEN
2 stops36h 14m
Frontier
Deal found 5/13![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 8/196:30 am
DEN
- BUF
1 stop26h 10m
Frontier
Mon 8/317:52 pm
BUF
- DEN
2 stops20h 37m
Frontier
Deal found 5/13![Frontier logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Wed 7/226:30 am
DEN
- BUF
1 stop26h 09m
Frontier
Tue 7/2811:50 am
BUF
- DEN
1 stop12h 15m
Frontier
Deal found 5/11![Frontier logo]()
$219
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 May 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 May 16, 2026.
This United Airlines deal was found by Cheapflights users on 5/15. 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 7/2211:59 pm
DEN
- BUF
1 stop7h 54m
United Airlines
Wed 7/299:00 am
BUF
- DEN
Nonstop3h 35m
United Airlines
Deal found 5/15![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 5/12. 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.
Tue 6/211:55 pm
DEN
- BUF
1 stop5h 55m
Southwest
Mon 6/84:40 pm
BUF
- DEN
Nonstop3h 35m
Southwest
Deal found 5/12![Southwest logo]()
$418
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Tue 8/45:40 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Tue 8/117:59 pm
BUF
- DEN
1 stop6h 31m
United Airlines
Deal found 5/15![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 5/12. 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.
Wed 9/1611:00 am
DEN
- BUF
1 stop8h 40m
Southwest
Sun 9/204:30 pm
BUF
- DEN
Nonstop3h 25m
Southwest
Deal found 5/12![Southwest logo]()
$454
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:40 pm
DEN
- BUF
1 stop4h 55m
Southwest
Fri 9/183:55 pm
BUF
- DEN
2 stops8h 40m
Southwest
Deal found 5/11![Southwest logo]()
$456
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Tue 7/75:40 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Mon 7/139:00 am
BUF
- DEN
Nonstop3h 35m
United Airlines
Deal found 5/14![United Airlines logo]()
$459
This Southwest deal was found by Cheapflights users on 5/13. 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.
Wed 7/2212:20 pm
DEN
- BUF
2 stops7h 05m
Southwest
Thu 7/308:45 am
BUF
- DEN
2 stops7h 10m
Southwest
Deal found 5/13![Southwest logo]()
$461
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Mon 7/65:40 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Sat 7/116:04 pm
BUF
- DEN
1 stop7h 45m
United Airlines
Deal found 5/11![United Airlines logo]()
$473
This Southwest deal was found by Cheapflights users on 5/11. 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.
Tue 6/235:15 am
DEN
- BUF
2 stops14h 10m
Southwest
Mon 7/135:55 pm
BUF
- DEN
2 stops7h 45m
Southwest
Deal found 5/11![Southwest logo]()
$467
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Tue 6/25:40 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Mon 6/89:00 am
BUF
- DEN
Nonstop3h 35m
United Airlines
Deal found 5/12![United Airlines logo]()
$498
This Southwest deal was found by Cheapflights users on 5/11. 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.
Sun 7/55:00 am
DEN
- BUF
1 stop9h 45m
Southwest
Sat 7/115:05 am
BUF
- DEN
Nonstop3h 35m
Southwest
Deal found 5/11![Southwest logo]()
$479
This Southwest deal was found by Cheapflights users on 5/15. 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.
Tue 8/41:40 pm
DEN
- BUF
Nonstop3h 05m
Southwest
Tue 8/113:55 pm
BUF
- DEN
Nonstop3h 25m
Southwest
Deal found 5/15![Southwest logo]()
$519
Last-minute flights from Denver to BuffaloDiscover last-minute flight deals from Denver to Buffalo. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Buffalo. Data last updated May 16, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:54 pm
DEN
- BUF
1 stop8h 47m
Frontier
Tue 6/27:52 pm
BUF
- DEN
1 stop29h 19m
Frontier
Deal found 5/12![Frontier logo]()
$220
This Frontier deal was found by Cheapflights users on 5/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:03 am
DEN
- BUF
1 stop12h 01m
Frontier
Mon 6/12:49 pm
BUF
- DEN
1 stop9h 35m
Frontier
Deal found 5/11![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Tue 6/24:15 pm
DEN
- BUF
2 stops40h 26m
Frontier
Tue 6/912:05 pm
BUF
- DEN
1 stop12h 11m
Frontier
Deal found 5/13![Frontier logo]()
$211
This Frontier deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:54 pm
DEN
- BUF
1 stop8h 47m
Frontier
Tue 6/912:05 pm
BUF
- DEN
1 stop12h 11m
Frontier
Deal found 5/13![Frontier logo]()
$230
This Frontier deal was found by Cheapflights users on 5/16. 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.
Wed 6/311:54 pm
DEN
- BUF
1 stop8h 47m
Frontier
Wed 6/102:50 pm
BUF
- DEN
1 stop9h 26m
Frontier
Deal found 5/16![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:00 pm
DEN
- BUF
2 stops39h 41m
Frontier
Wed 6/102:50 pm
BUF
- DEN
1 stop9h 26m
Frontier
Deal found 5/12![Frontier logo]()
$231
This CheapOair deal was found by Cheapflights users on 5/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
DEN
- BUF
1 stop10h 59m
Frontier
Wed 6/102:50 pm
BUF
- DEN
1 stop9h 26m
Frontier
Deal found 5/15![Frontier logo]()
$244
This Frontier deal was found by Cheapflights users on 5/15. 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.
Tue 6/96:00 am
DEN
- BUF
1 stop11h 12m
Frontier
Mon 6/157:57 pm
BUF
- DEN
1 stop14h 23m
Frontier
Deal found 5/15![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/1011:46 pm
DEN
- BUF
1 stop8h 54m
Frontier
Tue 6/1611:50 am
BUF
- DEN
2 stops14h 04m
Frontier
Deal found 5/15![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Tue 6/2311:46 pm
DEN
- BUF
1 stop12h 09m
Frontier
Thu 7/1611:35 am
BUF
- DEN
2 stops12h 56m
Frontier
Deal found 5/13![Frontier logo]()
$236
This Frontier deal was found by Cheapflights users on 5/13. 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 6/236:03 am
DEN
- BUF
1 stop12h 14m
Frontier
Mon 7/137:57 pm
BUF
- DEN
1 stop14h 10m
Frontier
Deal found 5/13![Frontier logo]()
$240
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 May 16, 2026.
Search for one-way flight options from Denver to Buffalo. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 7/2911:46 pm
DEN
- BUF
1 stop8h 53m
Frontier
Deal found 5/13![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:46 pm
DEN
- BUF
1 stop12h 07m
Frontier
Deal found 5/12![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 6/311:54 pm
DEN
- BUF
1 stop8h 47m
Frontier
Deal found 5/13![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/811:46 pm
DEN
- BUF
1 stop8h 53m
Frontier
Deal found 5/13![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:30 am
DEN
- BUF
1 stop29h 23m
Frontier
Deal found 5/13![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 5/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1511:46 pm
DEN
- BUF
1 stop8h 53m
Frontier
Deal found 5/11![Frontier logo]()
$105
This Super.com deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1011:46 pm
DEN
- BUF
1 stop8h 54m
Frontier
Deal found 5/15![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:00 am
DEN
- BUF
1 stop11h 06m
Frontier
Deal found 5/12![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:00 am
DEN
- BUF
1 stop25h 54m
Frontier
Deal found 5/13![Frontier logo]()
$114
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 May 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $186 (Kiwi.com) |
One-way from | $88 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $371 |
Good round-trip deal | $486 or less |
Good one-way deal | $218 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 May 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
Wed 7/22
11:59 pm-9:53 am
1 stop7h 54m
Buffalo
Wed 7/29
9:00 am-10:35 am
Nonstop3h 35m
$409
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Tue 8/4
5:40 pm-10:58 pm
Nonstop3h 18m
Buffalo
Tue 8/11
7:59 pm-12:30 am
1 stop6h 31m
$409
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Tue 6/2
11:55 pm-7:50 am
1 stop5h 55m
Buffalo
Mon 6/8
4:40 pm-6:15 pm
Nonstop3h 35m
$418
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 9/16
11:00 am-9:40 pm
1 stop8h 40m
Buffalo
Sun 9/20
4:30 pm-5:55 pm
Nonstop3h 25m
$454
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 9/16
1:40 pm-8:35 pm
1 stop4h 55m
Buffalo
Fri 9/18
3:55 pm-10:35 pm
2 stops8h 40m
$456
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Tue 7/7
5:40 pm-10:58 pm
Nonstop3h 18m
Buffalo
Mon 7/13
9:00 am-10:35 am
Nonstop3h 35m
$459
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 7/22
12:20 pm-9:25 pm
2 stops7h 05m
Buffalo
Thu 7/30
8:45 am-1:55 pm
2 stops7h 10m
$461
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Tue 6/23
5:15 am-9:25 pm
2 stops14h 10m
Buffalo
Mon 7/13
5:55 pm-11:40 pm
2 stops7h 45m
$467
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 7/6
5:40 pm-10:58 pm
Nonstop3h 18m
Buffalo
Sat 7/11
6:04 pm-11:49 pm
1 stop7h 45m
$473
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Sun 7/5
5:00 am-4:45 pm
1 stop9h 45m
Buffalo
Sat 7/11
5:05 am-6:40 am
Nonstop3h 35m
$479
Showing 1-10 of 24 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 May.
| 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 | |
| Price Accuracy- | Trust Score*1 star |
- 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 53 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, October is the cheapest month in which you can book a flight from Denver to Buffalo (average of $227). Flying from Denver to Buffalo in December is currently the most expensive (average of $427). 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 May 16, 2026.
It’s optimal to fly from Denver to Buffalo in the morning. By choosing this option you can save up to 54% 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 May 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
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
Batavia
Williamsville
Orchard Park
Eden
West Seneca
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Alternative routes for Denver to Buffalo
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Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 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 May 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 May 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 May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$232 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$336 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$182 | Average$296 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$182 | Average$391 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$187 | Average$295 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$270 | Average$474 | FlexibilityNo cancel fee | On-time63% |