$60+ Cheap flights from Buffalo to Denver (BUF - DEN)
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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
Mar 19 — Mar 261
1 adult, Economy
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Find cheap flights from Buffalo to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Buffalo to Denver Intl are usually found in October or August, booked 66 days in advance, depart on a Friday or Wednesday and return on a Friday
Cheap flight deals from Buffalo to Denver
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Best
Last-minute
One-way
Cheapest flights from Buffalo to DenverExplore the most affordable flight options available from Buffalo to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 17, 2026.
Explore the most affordable flight options available from Buffalo to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 4/141:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Tue 5/511:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/15![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 4/171:08 pm
BUF
- DEN
1 stop25h 01m
Frontier
Tue 4/2111:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/15![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Wed 4/221:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Sun 4/2611:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/12![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 4/141:08 pm
BUF
- DEN
2 stops10h 50m
Frontier
Tue 4/211:09 pm
DEN
- BUF
1 stop21h 04m
Frontier
Deal found 2/15![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 4/171:08 pm
BUF
- DEN
2 stops27h 07m
Multiple Airlines
Tue 4/2111:59 pm
DEN
- BUF
1 stop10h 14m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 5/61:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Fri 5/811:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/13![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 4/71:02 pm
BUF
- DEN
1 stop25h 07m
Frontier
Mon 4/139:00 pm
DEN
- BUF
2 stops37h 13m
Frontier
Deal found 2/13![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 2/13. 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.
Fri 5/11:08 pm
BUF
- DEN
1 stop25h 01m
Frontier
Sun 5/1011:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/13![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Mon 4/208:08 pm
BUF
- DEN
2 stops28h 55m
Frontier
Tue 4/2811:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/15![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 2/14. 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 4/3011:25 am
BUF
- DEN
1 stop13h 34m
Frontier
Mon 5/411:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/14![Frontier logo]()
$190
This CheapOair deal was found by Cheapflights users on 2/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:39 pm
BUF
- DEN
1 stop10h 02m
Frontier
Wed 3/412:05 pm
DEN
- BUF
1 stop20h 17m
Frontier
Deal found 2/12![Frontier logo]()
$201
Best flights from Buffalo to DenverDiscover carefully curated flight deals from Buffalo to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 17, 2026.
Discover carefully curated flight deals from Buffalo to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 17, 2026.
This JetBlue deal was found by Cheapflights users on 2/14. 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.
Thu 5/284:00 pm
BUF
- DEN
1 stop9h 01m
JetBlue
Tue 6/211:59 pm
DEN
- BUF
1 stop9h 30m
JetBlue
Deal found 2/14![JetBlue logo]()
$229
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/167:38 pm
BUF
- DEN
1 stop6h 31m
Delta
Mon 3/2311:55 pm
DEN
- BUF
1 stop9h 02m
Delta
Deal found 2/15![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:34 pm
BUF
- DEN
1 stop6h 52m
Delta
Sun 5/3112:55 am
DEN
- BUF
1 stop5h 25m
Delta
Deal found 2/15![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:31 pm
BUF
- DEN
1 stop5h 26m
Delta
Mon 6/112:55 am
DEN
- BUF
1 stop5h 25m
Delta
Deal found 2/13![Delta logo]()
$257
This JetBlue deal was found by Cheapflights users on 2/16. 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.
Tue 8/1110:00 am
BUF
- DEN
1 stop8h 57m
JetBlue
Sun 8/1611:15 pm
DEN
- BUF
1 stop7h 55m
JetBlue
Deal found 2/16![JetBlue logo]()
$318
This Delta deal was found by Cheapflights users on 2/16. 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.
Tue 3/317:38 pm
BUF
- DEN
1 stop6h 31m
Delta
Wed 4/1512:35 am
DEN
- BUF
1 stop5h 41m
Delta
Deal found 2/16![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:45 pm
BUF
- DEN
1 stop7h 38m
Delta
Tue 3/107:30 am
DEN
- BUF
1 stop7h 21m
Delta
Deal found 2/15![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 2/16. 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 7/234:30 pm
BUF
- DEN
1 stop9h 15m
Delta
Tue 7/289:00 am
DEN
- BUF
1 stop7h 33m
Delta
Deal found 2/16![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 2/16. 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.
Tue 6/27:34 pm
BUF
- DEN
1 stop6h 52m
Delta
Thu 6/1112:55 am
DEN
- BUF
1 stop5h 28m
Delta
Deal found 2/16![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 2/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:30 pm
BUF
- DEN
1 stop9h 15m
Delta
Tue 8/116:45 am
DEN
- BUF
1 stop6h 26m
Delta
Deal found 2/13![Delta logo]()
$308
This Delta deal was found by Cheapflights users on 2/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/164:30 pm
BUF
- DEN
1 stop9h 15m
Delta
Tue 8/1812:55 am
DEN
- BUF
1 stop5h 28m
Delta
Deal found 2/14![Delta logo]()
$328
Last-minute flights from Buffalo to DenverDiscover last-minute flight deals from Buffalo to Denver. Data last updated February 17, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Denver. Data last updated February 17, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 2/15. 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.
Mon 2/231:48 pm
BUF
- DEN
1 stop9h 53m
Frontier
Thu 2/2612:59 am
DEN
- BUF
1 stop9h 45m
Frontier
Deal found 2/15![Frontier logo]()
$232
This CheapOair deal was found by Cheapflights users on 2/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:17 pm
BUF
- DEN
1 stop29h 42m
Frontier
Fri 2/2712:59 am
DEN
- BUF
1 stop8h 06m
Frontier
Deal found 2/12![Frontier logo]()
$222
This Priceline deal was found by Cheapflights users on 2/13. 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.
Fri 2/271:39 pm
BUF
- DEN
1 stop10h 02m
Frontier
Sun 3/112:59 am
DEN
- BUF
1 stop9h 54m
Frontier
Deal found 2/13![Frontier logo]()
$190
This CheapOair deal was found by Cheapflights users on 2/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:39 pm
BUF
- DEN
1 stop10h 02m
Frontier
Wed 3/412:05 pm
DEN
- BUF
1 stop20h 17m
Frontier
Deal found 2/12![Frontier logo]()
$201
This Priceline deal was found by Cheapflights users on 2/14. 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.
Sun 3/12:19 pm
BUF
- DEN
1 stop9h 51m
Multiple Airlines
Thu 3/512:14 pm
DEN
- BUF
1 stop9h 18m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$229
This Expedia deal was found by Cheapflights users on 2/16. 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.
Mon 3/24:45 pm
BUF
- DEN
1 stop23h 21m
Frontier
Thu 3/57:24 pm
DEN
- BUF
1 stop23h 06m
Frontier
Deal found 2/16![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 2/13. 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.
Sun 3/1512:45 pm
BUF
- DEN
1 stop25h 24m
Frontier
Wed 3/186:35 am
DEN
- BUF
2 stops27h 30m
Frontier
Deal found 2/13![Frontier logo]()
$209
This Priceline deal was found by Cheapflights users on 2/14. 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 3/171:30 pm
BUF
- DEN
1 stop10h 13m
Multiple Airlines
Tue 4/1411:59 pm
DEN
- BUF
1 stop10h 14m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 3/1912:50 pm
BUF
- DEN
1 stop12h 14m
Frontier
Tue 3/2411:59 pm
DEN
- BUF
2 stops32h 50m
Frontier
Deal found 2/15![Frontier logo]()
$212
This Expedia deal was found by Cheapflights users on 2/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1912:50 pm
BUF
- DEN
1 stop12h 14m
Multiple Airlines
Tue 3/2411:59 pm
DEN
- BUF
1 stop7h 05m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$239
This Frontier deal was found by Cheapflights users on 2/15. 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 3/2612:50 pm
BUF
- DEN
1 stop12h 14m
Frontier
Tue 3/3111:59 pm
DEN
- BUF
1 stop8h 50m
Frontier
Deal found 2/15![Frontier logo]()
$240
One-way flights from Buffalo to DenverSearch for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated February 17, 2026.
Search for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated February 17, 2026.
This Trip.com deal was found by Cheapflights users on 2/13. 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 4/221:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/13![Frontier logo]()
$60
This Trip.com deal was found by Cheapflights users on 2/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/16![Frontier logo]()
$61
This Trip.com deal was found by Cheapflights users on 2/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/15![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Wed 5/61:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/12![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Mon 4/271:08 pm
BUF
- DEN
1 stop25h 01m
Frontier
Deal found 2/16![Frontier logo]()
$66
This Trip.com deal was found by Cheapflights users on 2/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/15![Frontier logo]()
$76
This Trip.com deal was found by Cheapflights users on 2/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/81:02 pm
BUF
- DEN
1 stop12h 02m
Frontier
Deal found 2/15![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Sun 5/31:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/16![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Mon 3/2311:59 am
BUF
- DEN
1 stop26h 10m
Frontier
Deal found 2/16![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
Mon 4/133:00 pm
BUF
- DEN
1 stop25h 32m
Frontier
Deal found 2/14![Frontier logo]()
$95
This Trip.com deal was found by Cheapflights users on 2/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1912:50 pm
BUF
- DEN
1 stop12h 14m
Frontier
Deal found 2/14![Frontier logo]()
$97
Find flight deals from Buffalo to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Denver (DEN). 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 February 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $126 (Kiwi.com) |
One-way from | $60 (Trip.com) |
Popular in | January |
Cheapest in | October |
Average price | $424 |
Good round-trip deal | $335 or less |
Good one-way deal | $189 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to Denver 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 February 17, 2026.
Use the filters below to find and compare flights from Buffalo to Denver that are best for you.
Fly from
Buffalo
Fly to
Denver
Route
Depart
Return
Price
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 5/28
4:00 pm-11:01 pm
1 stop9h 01m
Denver Intl
Tue 6/2
11:59 pm-11:29 am
1 stop9h 30m
$229
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Mon 3/16
7:38 pm-12:09 am
1 stop6h 31m
Denver Intl
Mon 3/23
11:55 pm-10:57 am
1 stop9h 02m
$257
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 5/26
7:34 pm-12:26 am
1 stop6h 52m
Denver Intl
Sun 5/31
12:55 am-8:20 am
1 stop5h 25m
$257
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Wed 5/27
7:31 pm-10:57 pm
1 stop5h 26m
Denver Intl
Mon 6/1
12:55 am-8:20 am
1 stop5h 25m
$257
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 3/31
7:38 pm-12:09 am
1 stop6h 31m
Denver Intl
Wed 4/15
12:35 am-8:16 am
1 stop5h 41m
$277
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 3/5
6:45 pm-12:23 am
1 stop7h 38m
Denver Intl
Tue 3/10
7:30 am-4:51 pm
1 stop7h 21m
$279
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 7/23
4:30 pm-11:45 pm
1 stop9h 15m
Denver Intl
Tue 7/28
9:00 am-6:33 pm
1 stop7h 33m
$298
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 6/2
7:34 pm-12:26 am
1 stop6h 52m
Denver Intl
Thu 6/11
12:55 am-8:23 am
1 stop5h 28m
$298
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 8/6
4:30 pm-11:45 pm
1 stop9h 15m
Denver Intl
Tue 8/11
6:45 am-3:11 pm
1 stop6h 26m
$308
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 8/11
10:00 am-4:57 pm
1 stop8h 57m
Denver Intl
Sun 8/16
11:15 pm-9:10 am
1 stop7h 55m
$318
Showing 1-10 of 20 results
Compare providers for flights from Buffalo to Denver
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Denver in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buffalo-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Buffalo to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Buffalo with our price prediction graph.
BUF-DEN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Buffalo to Denver
Prices
Airlines
How far ahead should I book a flight from Buffalo to Denver?
Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Denver. Price data was last updated on February 13, 2026.
Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Buffalo to Denver?
Currently, September is the cheapest month in which you can book a flight from Buffalo to Denver (average of $118). Flying from Buffalo to Denver in November is currently the most expensive (average of $217). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BUF to DEN?
Find hourly flight availability from Buffalo to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 17, 2026.
One of the essential ways to save on airfare from Buffalo to Denver is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 53% on airfare.
What is the cheapest day to fly from Buffalo to Denver?
Use this chart to determine the cheapest time to fly round-trip from Buffalo to Denver. Price data was last updated on February 7, 2026.
Travelers seeking maximum savings on their Buffalo to Denver flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated February 17, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Buffalo to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Buffalo to Denver. 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 Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Cripple Creek
Winter Park
Central City
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen
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Complete your trip
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Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 17, 2026.
Search flights from Buffalo to Denver by cabin class
Find flights from Buffalo to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Buffalo and Denver flights
Browse other Buffalo and Denver flight options. Last updated on February 17, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on February 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Buffalo to Denver
Discover the top 5 airlines that operate flights from Buffalo to Denver. 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 February 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$215 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$269 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$198 | Average$295 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$200 | Average$328 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$418 | FlexibilityNo cancel fee | On-time63% |