$60+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BUF
Mar 21 — Mar 281
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Denver Intl to Buffalo are usually found in 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 19, 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 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Tue 4/281:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/17![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.
Thu 5/141:09 pm
DEN
- BUF
1 stop21h 04m
Frontier
Tue 5/191:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/15![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:59 pm
DEN
- BUF
1 stop10h 06m
Frontier
Mon 4/201:08 pm
BUF
- DEN
1 stop25h 01m
Frontier
Deal found 2/17![Frontier logo]()
$157
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.
Thu 4/166:00 am
DEN
- BUF
2 stops28h 13m
Frontier
Tue 4/211:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/16![Frontier logo]()
$166
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 4/1611:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Mon 4/201:08 pm
BUF
- DEN
2 stops22h 19m
Frontier
Deal found 2/15![Frontier logo]()
$174
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 4/3011:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Mon 5/41:08 pm
BUF
- DEN
2 stops22h 19m
Frontier
Deal found 2/15![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:59 pm
DEN
- BUF
2 stops33h 00m
Frontier
Tue 4/211:56 pm
BUF
- DEN
1 stop10h 33m
Frontier
Deal found 2/18![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/111:59 pm
DEN
- BUF
1 stop9h 00m
Frontier
Sat 4/181:11 pm
BUF
- DEN
1 stop11h 18m
Frontier
Deal found 2/18![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/511:59 pm
DEN
- BUF
1 stop10h 18m
Frontier
Sat 4/181:11 pm
BUF
- DEN
1 stop11h 18m
Frontier
Deal found 2/18![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:35 am
DEN
- BUF
2 stops27h 30m
Frontier
Mon 3/2311:59 am
BUF
- DEN
1 stop26h 10m
Frontier
Deal found 2/17![Frontier logo]()
$186
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 19, 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 19, 2026.
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 7/1412:55 am
DEN
- BUF
1 stop5h 28m
Delta
Wed 7/227:35 pm
BUF
- DEN
1 stop4h 54m
Delta
Deal found 2/16![Delta logo]()
$257
This JetBlue deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:59 pm
DEN
- BUF
1 stop6h 07m
JetBlue
Wed 4/159:48 am
BUF
- DEN
1 stop7h 42m
JetBlue
Deal found 2/18![JetBlue logo]()
$277
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.
Mon 3/1612:35 am
DEN
- BUF
1 stop7h 15m
Delta
Mon 3/234:47 pm
BUF
- DEN
1 stop9h 22m
Delta
Deal found 2/16![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:55 am
DEN
- BUF
1 stop8h 08m
Delta
Mon 6/87:35 pm
BUF
- DEN
1 stop4h 54m
Delta
Deal found 2/18![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:35 am
DEN
- BUF
1 stop7h 15m
Delta
Mon 4/1311:50 am
BUF
- DEN
1 stop9h 52m
Delta
Deal found 2/18![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:55 am
DEN
- BUF
1 stop8h 06m
Delta
Mon 4/207:40 pm
BUF
- DEN
1 stop6h 56m
Delta
Deal found 2/18![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1512:35 am
DEN
- BUF
1 stop7h 15m
Delta
Thu 3/196:15 am
BUF
- DEN
1 stop5h 28m
Delta
Deal found 2/19![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:55 pm
DEN
- BUF
1 stop7h 50m
Delta
Thu 5/77:31 pm
BUF
- DEN
1 stop5h 26m
Delta
Deal found 2/18![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2311:55 pm
DEN
- BUF
1 stop9h 02m
Delta
Tue 3/317:38 pm
BUF
- DEN
1 stop6h 31m
Delta
Deal found 2/18![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:25 pm
DEN
- BUF
1 stop8h 12m
Delta
Sun 4/266:05 am
BUF
- DEN
1 stop5h 31m
Delta
Deal found 2/18![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:30 am
DEN
- BUF
1 stop7h 21m
Delta
Wed 4/17:00 am
BUF
- DEN
1 stop16h 46m
Delta
Deal found 2/18![Delta logo]()
$326
Last-minute flights from Denver to BuffaloDiscover last-minute flight deals from Denver to Buffalo. Data last updated February 19, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Buffalo. Data last updated February 19, 2026 and is based on user searches.
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:00 am
DEN
- BUF
1 stop28h 10m
Frontier
Mon 3/24:45 pm
BUF
- DEN
1 stop23h 21m
Frontier
Deal found 2/16![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:59 pm
DEN
- BUF
1 stop10h 06m
Frontier
Mon 4/201:08 pm
BUF
- DEN
1 stop25h 01m
Frontier
Deal found 2/17![Frontier logo]()
$157
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.
Wed 3/186:35 am
DEN
- BUF
2 stops27h 30m
Frontier
Mon 3/2311:59 am
BUF
- DEN
1 stop26h 10m
Frontier
Deal found 2/16![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:35 am
DEN
- BUF
2 stops27h 30m
Frontier
Fri 3/2012:50 pm
BUF
- DEN
1 stop12h 14m
Frontier
Deal found 2/17![Frontier logo]()
$209
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 3/199:40 am
DEN
- BUF
2 stops24h 25m
Frontier
Mon 3/2311:59 am
BUF
- DEN
1 stop26h 10m
Frontier
Deal found 2/15![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:59 pm
DEN
- BUF
2 stops33h 00m
Frontier
Wed 4/151:56 pm
BUF
- DEN
1 stop10h 33m
Frontier
Deal found 2/18![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:59 pm
DEN
- BUF
1 stop8h 50m
Frontier
Tue 4/211:56 pm
BUF
- DEN
1 stop10h 33m
Frontier
Deal found 2/18![Frontier logo]()
$188
This Frontier deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier 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
Thu 4/161:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 2/18![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:59 pm
DEN
- BUF
1 stop8h 50m
Frontier
Sun 4/1912:07 pm
BUF
- DEN
1 stop25h 45m
Frontier
Deal found 2/18![Frontier logo]()
$206
This Frontier deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier 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
Tue 4/71:02 pm
BUF
- DEN
1 stop12h 02m
Frontier
Deal found 2/18![Frontier logo]()
$211
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 19, 2026.
Search for one-way flight options from Denver to Buffalo. Find affordable one-way fares based on user searches. Data last updated February 19, 2026.
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.
Tue 4/2111:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/16![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 4/1511:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/16![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/17![Frontier logo]()
$65
This Trip.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:59 pm
DEN
- BUF
1 stop10h 43m
Frontier
Deal found 2/19![Frontier logo]()
$76
This Trip.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:59 pm
DEN
- BUF
1 stop9h 14m
Frontier
Deal found 2/18![Frontier logo]()
$77
This Trip.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/17![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/17![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 2/17![Frontier logo]()
$84
This Trip.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2511:59 pm
DEN
- BUF
1 stop10h 06m
Frontier
Deal found 2/19![Frontier logo]()
$89
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 19, 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 | December |
Cheapest in | October |
Average price | $265 |
Good round-trip deal | $215 or less |
Good one-way deal | $146 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 19, 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
Tue 7/14
12:55 am-8:23 am
1 stop5h 28m
Buffalo
Wed 7/22
7:35 pm-10:29 pm
1 stop4h 54m
$257
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 3/16
12:35 am-9:50 am
1 stop7h 15m
Buffalo
Mon 3/23
4:47 pm-12:09 am
1 stop9h 22m
$257
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 6/1
12:55 am-11:03 am
1 stop8h 08m
Buffalo
Mon 6/8
7:35 pm-10:29 pm
1 stop4h 54m
$269
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 4/1
12:35 am-9:50 am
1 stop7h 15m
Buffalo
Mon 4/13
11:50 am-7:42 pm
1 stop9h 52m
$269
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Tue 4/7
12:55 am-11:01 am
1 stop8h 06m
Buffalo
Mon 4/20
7:40 pm-12:36 am
1 stop6h 56m
$269
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Sun 3/15
12:35 am-9:50 am
1 stop7h 15m
Buffalo
Thu 3/19
6:15 am-9:43 am
1 stop5h 28m
$269
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 5/6
11:55 pm-9:45 am
1 stop7h 50m
Buffalo
Thu 5/7
7:31 pm-10:57 pm
1 stop5h 26m
$269
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 3/23
11:55 pm-10:57 am
1 stop9h 02m
Buffalo
Tue 3/31
7:38 pm-12:09 am
1 stop6h 31m
$269
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Sun 4/12
11:59 pm-8:06 am
1 stop6h 07m
Buffalo
Wed 4/15
9:48 am-3:30 pm
1 stop7h 42m
$277
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Thu 4/23
1:25 pm-11:37 pm
1 stop8h 12m
Buffalo
Sun 4/26
6:05 am-9:36 am
1 stop5h 31m
$304
Showing 1-10 of 21 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
Prices
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 18, 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 19, 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 19, 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.
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Food
7.0
Comfort
8.0
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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Denver to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 19, 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 19, 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 19, 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 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$234 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$326 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$157 | Average$319 | 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$431 | FlexibilityNo cancel fee | On-time63% |