$76+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BUF
Mar 15 — Mar 221
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 72 days in advance, depart on a Friday or Monday 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 February 13, 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 February 13, 2026.
This Frontier deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Mon 3/21:48 pm
BUF
- DEN
1 stop9h 53m
Frontier
Deal found 2/9![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Fri 5/111:25 am
BUF
- DEN
1 stop13h 34m
Frontier
Deal found 2/10![Frontier logo]()
$190
This CheapOair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:05 pm
DEN
- BUF
1 stop20h 07m
Frontier
Sat 2/2812:00 pm
BUF
- DEN
1 stop11h 35m
Frontier
Deal found 2/10![Frontier logo]()
$201
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Thu 3/511:17 am
BUF
- DEN
1 stop10h 43m
Frontier
Deal found 2/12![Frontier logo]()
$204
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:59 am
DEN
- BUF
1 stop9h 45m
Frontier
Mon 3/24:45 pm
BUF
- DEN
1 stop23h 21m
Frontier
Deal found 2/12![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/412:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Sun 3/89:25 pm
BUF
- DEN
2 stops35h 48m
Frontier
Deal found 2/11![Frontier logo]()
$216
This Expedia deal was found by Cheapflights users on 2/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:59 pm
DEN
- BUF
1 stop18h 31m
Frontier
Sat 3/77:41 pm
BUF
- DEN
1 stop13h 37m
Frontier
Deal found 2/11![Frontier logo]()
$218
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:05 pm
DEN
- BUF
1 stop20h 17m
Frontier
Sun 3/89:25 pm
BUF
- DEN
1 stop21h 13m
Frontier
Deal found 2/12![Frontier logo]()
$220
This CheapOair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:59 pm
DEN
- BUF
1 stop6h 59m
Multiple Airlines
Tue 4/211:08 pm
BUF
- DEN
1 stop11h 55m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$221
This CheapOair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/73:41 pm
DEN
- BUF
1 stop15h 06m
Frontier
Mon 5/118:08 pm
BUF
- DEN
1 stop25h 59m
Frontier
Deal found 2/10![Frontier logo]()
$222
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 February 13, 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 February 13, 2026.
This JetBlue deal was found by Cheapflights users on 2/11. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:59 pm
DEN
- BUF
1 stop9h 30m
JetBlue
Tue 6/94:00 pm
BUF
- DEN
1 stop9h 01m
JetBlue
Deal found 2/11![JetBlue logo]()
$229
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:25 am
DEN
- BUF
1 stop7h 48m
Frontier
Tue 5/191:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/12![Frontier logo]()
$240
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:00 am
DEN
- BUF
1 stop6h 56m
Delta
Fri 3/66:45 pm
BUF
- DEN
1 stop7h 38m
Delta
Deal found 2/10![Delta logo]()
$257
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.
Thu 5/149:25 am
DEN
- BUF
1 stop7h 48m
Multiple Airlines
Tue 5/196:00 am
BUF
- DEN
2 stops19h 01m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$286
This JetBlue deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1211:59 pm
DEN
- BUF
1 stop7h 05m
JetBlue
Tue 3/171:30 pm
BUF
- DEN
1 stop10h 13m
JetBlue
Deal found 2/10![JetBlue logo]()
$229
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1912:59 am
DEN
- BUF
1 stop8h 04m
Delta
Wed 5/276:25 am
BUF
- DEN
1 stop5h 18m
Delta
Deal found 2/10![Delta logo]()
$257
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Mon 3/21:48 pm
BUF
- DEN
1 stop9h 53m
Frontier
Deal found 2/12![Frontier logo]()
$276
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3112:55 am
DEN
- BUF
1 stop5h 25m
Delta
Fri 6/57:31 pm
BUF
- DEN
1 stop5h 26m
Delta
Deal found 2/11![Delta logo]()
$257
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:45 am
DEN
- BUF
1 stop8h 06m
Delta
Mon 3/234:47 pm
BUF
- DEN
1 stop7h 30m
Delta
Deal found 2/12![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1511:59 pm
DEN
- BUF
1 stop8h 36m
Delta
Wed 7/227:35 pm
BUF
- DEN
1 stop4h 54m
Delta
Deal found 2/10![Delta logo]()
$293
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:00 am
DEN
- BUF
1 stop6h 56m
Delta
Sun 3/16:45 pm
BUF
- DEN
1 stop7h 38m
Delta
Deal found 2/12![Delta logo]()
$301
Last-minute flights from Denver to BuffaloDiscover last-minute flight deals from Denver to Buffalo. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Buffalo. Data last updated February 13, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Mon 3/21:48 pm
BUF
- DEN
1 stop9h 53m
Frontier
Deal found 2/9![Frontier logo]()
$169
This Priceline deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Fri 2/271:39 pm
BUF
- DEN
1 stop10h 02m
Frontier
Deal found 2/10![Frontier logo]()
$190
This CheapOair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:05 pm
DEN
- BUF
1 stop20h 07m
Frontier
Sat 2/2812:00 pm
BUF
- DEN
1 stop11h 35m
Frontier
Deal found 2/10![Frontier logo]()
$201
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Thu 3/511:17 am
BUF
- DEN
1 stop10h 43m
Frontier
Deal found 2/12![Frontier logo]()
$204
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2511:59 pm
DEN
- BUF
1 stop9h 35m
Frontier
Fri 2/271:39 pm
BUF
- DEN
1 stop10h 02m
Frontier
Deal found 2/12![Frontier logo]()
$211
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:59 am
DEN
- BUF
1 stop9h 45m
Frontier
Mon 3/24:45 pm
BUF
- DEN
1 stop23h 21m
Frontier
Deal found 2/12![Frontier logo]()
$215
This Priceline deal was found by Cheapflights users on 2/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:59 am
DEN
- BUF
1 stop9h 54m
Multiple Airlines
Wed 3/111:50 pm
BUF
- DEN
1 stop10h 28m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$221
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:59 am
DEN
- BUF
1 stop9h 54m
Frontier
Tue 3/37:17 pm
BUF
- DEN
1 stop29h 42m
Frontier
Deal found 2/12![Frontier logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/412:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Sun 3/89:25 pm
BUF
- DEN
2 stops35h 48m
Frontier
Deal found 2/11![Frontier logo]()
$216
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:20 pm
DEN
- BUF
1 stop15h 19m
Frontier
Fri 3/61:03 pm
BUF
- DEN
1 stop11h 56m
Frontier
Deal found 2/12![Frontier logo]()
$220
This Expedia deal was found by Cheapflights users on 2/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:59 pm
DEN
- BUF
1 stop18h 31m
Frontier
Sat 3/77:41 pm
BUF
- DEN
1 stop13h 37m
Frontier
Deal found 2/11![Frontier logo]()
$218
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 February 13, 2026.
Search for one-way flight options from Denver to Buffalo. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
This CheapOair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:05 pm
DEN
- BUF
1 stop20h 17m
Frontier
Deal found 2/10![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/111:09 pm
DEN
- BUF
1 stop20h 56m
Frontier
Deal found 2/10![Frontier logo]()
$78
This Trip.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:59 am
DEN
- BUF
1 stop9h 54m
Frontier
Deal found 2/10![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:59 pm
DEN
- BUF
1 stop17h 14m
Frontier
Deal found 2/10![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:30 am
DEN
- BUF
2 stops29h 43m
Frontier
Deal found 2/9![Frontier logo]()
$91
This Booking.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:59 pm
DEN
- BUF
1 stop8h 50m
Frontier
Deal found 2/10![Frontier logo]()
$95
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Deal found 2/12![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/47:30 pm
DEN
- BUF
2 stops37h 19m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$100
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/12![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:59 pm
DEN
- BUF
2 stops17h 14m
Frontier
Deal found 2/10![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:30 am
DEN
- BUF
2 stops29h 43m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$104
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 February 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $169 (Frontier) |
One-way from | $76 (CheapOair) |
Popular in | December |
Cheapest in | October |
Average price | $253 |
Good round-trip deal | $215 or less |
Good one-way deal | $128 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 February 13, 2026.
Use the filters below to find and compare flights from Denver to Buffalo that are best for you.
Fly from
Denver
Fly to
Buffalo
Route
Depart
Return
Price
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 6/1
11:59 pm-11:29 am
1 stop9h 30m
Buffalo
Tue 6/9
4:00 pm-11:01 pm
1 stop9h 01m
$229
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Thu 3/12
11:59 pm-9:04 am
1 stop7h 05m
Buffalo
Tue 3/17
1:30 pm-9:43 pm
1 stop10h 13m
$229
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Thu 5/14
9:25 am-7:13 pm
1 stop7h 48m
Buffalo
Tue 5/19
1:08 pm-11:03 pm
1 stop11h 55m
$240
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Tue 3/3
6:00 am-2:56 pm
1 stop6h 56m
Buffalo
Fri 3/6
6:45 pm-12:23 am
1 stop7h 38m
$257
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Tue 5/19
12:59 am-11:03 am
1 stop8h 04m
Buffalo
Wed 5/27
6:25 am-9:43 am
1 stop5h 18m
$257
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Sun 5/31
12:55 am-8:20 am
1 stop5h 25m
Buffalo
Fri 6/5
7:31 pm-10:57 pm
1 stop5h 26m
$257
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 3/16
5:45 am-3:51 pm
1 stop8h 06m
Buffalo
Mon 3/23
4:47 pm-10:17 pm
1 stop7h 30m
$257
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 2/25
12:59 am-12:54 pm
1 stop9h 55m
Buffalo
Mon 3/2
1:48 pm-9:41 pm
1 stop9h 53m
$276
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Thu 5/14
9:25 am-7:13 pm
1 stop7h 48m
Buffalo
Tue 5/19
6:00 am-11:01 pm
2 stops19h 01m
$286
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 7/15
11:59 pm-10:35 am
1 stop8h 36m
Buffalo
Wed 7/22
7:35 pm-10:29 pm
1 stop4h 54m
$293
Showing 1-10 of 22 results
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 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 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
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Airlines
How far ahead should I book a flight from Denver to Buffalo?
Use this chart to determine the optimal time to book a round-trip flight from Denver to Buffalo. Price data was last updated on February 6, 2026.
The best time to book flights from Denver to Buffalo is 72 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 $92). Flying from Denver to Buffalo in April is currently the most expensive (average of $226). 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 February 13, 2026.
It’s optimal to fly from Denver to Buffalo in the morning. By choosing this option you can save up to 56% 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 February 13, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United 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.
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
Batavia
Williamsville
Orchard Park
Eden
Amherst
West Seneca
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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 February 13, 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 February 13, 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 February 13, 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 February 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$233 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$336 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$314 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$182 | Average$265 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$198 | Average$237 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$266 | Average$430 | FlexibilityNo cancel fee | On-time63% |