$87+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BUF
Sep 14 — Sep 211
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Denver to Buffalo with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Denver Intl to Buffalo are usually found in January or February, booked 80 days in advance, depart on a Friday or Wednesday and return on a Friday
Cheap flight deals from Denver to Buffalo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to BuffaloExplore the most affordable flight options available from Denver to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 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 August 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:10 pm -
1 stop15h 45m
Wed 10/71:40 pm -
1 stop9h 23m
Deal found 8/12![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 10/146:30 am -
1 stop27h 48m
Tue 10/271:13 pm -
1 stop11h 20m
Deal found 8/13![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:48 pm -
1 stop10h 30m
Wed 10/281:13 pm -
1 stop11h 20m
Deal found 8/11![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Sat 11/1410:56 am -
1 stop23h 22m
Wed 11/181:13 pm -
1 stop11h 20m
Deal found 8/15![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 9/117:10 pm -
1 stop15h 40m
Wed 9/161:40 pm -
1 stop9h 23m
Deal found 8/11![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:59 pm -
1 stop8h 30m
Tue 9/296:51 pm -
1 stop15h 01m
Deal found 8/11![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 9/117:10 pm -
1 stop15h 40m
Mon 9/211:40 pm -
1 stop20h 24m
Deal found 8/11![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/211:59 pm -
1 stop8h 30m
Tue 9/811:36 am -
1 stop12h 29m
Deal found 8/13![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Mon 8/3111:59 pm -
1 stop8h 30m
Wed 9/211:36 am -
1 stop12h 34m
Deal found 8/11![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:59 pm -
1 stop8h 30m
Sat 9/261:45 pm -
1 stop9h 39m
Deal found 8/11![Frontier logo]()
$191
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 August 15, 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 August 15, 2026.
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:25 pm -
Nonstop3h 12m
Tue 9/1510:30 am -
1 stop6h 01m
Deal found 8/13![United Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:30 am -
1 stop10h 05m
Mon 10/54:30 pm -
2 stops9h 15m
Deal found 8/12![Southwest logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 9/187:10 pm -
1 stop15h 45m
Sun 10/46:47 pm -
1 stop27h 28m
Deal found 8/15![Frontier logo]()
$322
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:25 pm -
Nonstop3h 12m
Tue 9/298:45 am -
Nonstop3h 37m
Deal found 8/12![United Airlines logo]()
$301
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:00 am -
2 stops7h 40m
Wed 10/78:00 am -
2 stops13h 30m
Deal found 8/10![Southwest logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:30 pm -
Nonstop3h 08m
Wed 10/2810:51 am -
1 stop6h 57m
Deal found 8/11![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:31 pm -
Nonstop3h 12m
Tue 10/137:59 pm -
1 stop6h 31m
Deal found 8/11![United Airlines logo]()
$381
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:05 pm -
Nonstop3h 10m
Mon 9/146:50 am -
Nonstop3h 25m
Deal found 8/13![Southwest logo]()
$435
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:00 am -
1 stop6h 23m
Tue 9/298:45 am -
Nonstop3h 37m
Deal found 8/10![United Airlines logo]()
$385
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
2 stops10h 40m
Mon 10/129:40 am -
2 stops11h 10m
Deal found 8/14![Southwest logo]()
$455
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:59 pm -
1 stop7h 49m
Sun 10/48:45 am -
Nonstop3h 37m
Deal found 8/15![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:40 pm -
1 stop6h 04m
Tue 9/88:55 am -
Nonstop3h 37m
Deal found 8/14![United Airlines logo]()
$456
Last-minute flights from Denver to BuffaloDiscover last-minute flight deals from Denver to Buffalo. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Buffalo. Data last updated August 15, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Mon 8/3111:59 pm -
1 stop8h 30m
Wed 9/211:36 am -
1 stop12h 34m
Deal found 8/11![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:59 pm -
1 stop8h 30m
Tue 9/296:51 pm -
1 stop15h 01m
Deal found 8/11![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:59 pm -
1 stop8h 30m
Wed 9/301:40 pm -
1 stop9h 23m
Deal found 8/11![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/211:59 pm -
1 stop8h 30m
Tue 9/811:36 am -
1 stop12h 29m
Deal found 8/13![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/106:40 am -
1 stop9h 05m
Wed 9/161:40 pm -
1 stop9h 23m
Deal found 8/11![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 9/117:10 pm -
1 stop15h 40m
Wed 9/161:40 pm -
1 stop9h 23m
Deal found 8/11![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 9/117:10 pm -
1 stop15h 40m
Mon 9/211:40 pm -
1 stop20h 24m
Deal found 8/11![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:10 pm -
1 stop15h 45m
Wed 10/71:40 pm -
1 stop9h 23m
Deal found 8/12![Frontier logo]()
$168
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 August 15, 2026.
Search for one-way flight options from Denver to Buffalo. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:59 pm -
1 stop10h 19m
Deal found 8/11![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 10/146:57 pm -
1 stop15h 21m
Deal found 8/13![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:10 pm -
1 stop15h 45m
Deal found 8/12![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:57 pm -
1 stop16h 02m
Deal found 8/12![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:10 pm -
1 stop15h 45m
Deal found 8/14![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:43 am -
1 stop21h 46m
Deal found 8/11![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:48 pm -
1 stop10h 30m
Deal found 8/11![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:10 pm -
1 stop15h 45m
Deal found 8/12![Frontier logo]()
$98
This Priceline deal was found by Cheapflights users on 8/11. 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.
Thu 9/106:40 am -
1 stop9h 05m
Deal found 8/11![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Mon 10/126:30 am -
1 stop27h 48m
Deal found 8/11![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 9/1110:44 am -
1 stop24h 06m
Deal found 8/11![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 11/136:30 am -
1 stop27h 48m
Deal found 8/11![Frontier logo]()
$103
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 August 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $168 (Kiwi.com) |
One-way from | $87 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $476 |
Good round-trip deal | $476 or less |
Good one-way deal | $222 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 August 15, 2026.
Use the filters below to find and compare flights from Denver to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Thu 9/10
5:25 pm-10:37 pm
Nonstop3h 12m
Buffalo
Tue 9/15
10:30 am-2:31 pm
1 stop6h 01m
$289
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Wed 9/23
5:25 pm-10:37 pm
Nonstop3h 12m
Buffalo
Tue 9/29
8:45 am-10:22 am
Nonstop3h 37m
$301
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Sat 10/3
5:30 am-5:35 pm
1 stop10h 05m
Buffalo
Mon 10/5
4:30 pm-11:45 pm
2 stops9h 15m
$311
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Fri 9/18
7:10 pm-12:55 pm
1 stop15h 45m
Buffalo
Sun 10/4
6:47 pm-8:15 pm
1 stop27h 28m
$322
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Tue 10/27
5:30 pm-10:38 pm
Nonstop3h 08m
Buffalo
Wed 10/28
10:51 am-3:48 pm
1 stop6h 57m
$379
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Fri 10/9
5:31 pm-10:43 pm
Nonstop3h 12m
Buffalo
Tue 10/13
7:59 pm-12:30 am
1 stop6h 31m
$381
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Thu 9/24
6:00 am-2:23 pm
1 stop6h 23m
Buffalo
Tue 9/29
8:45 am-10:22 am
Nonstop3h 37m
$385
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Sat 10/3
11:00 am-8:40 pm
2 stops7h 40m
Buffalo
Wed 10/7
8:00 am-7:30 pm
2 stops13h 30m
$399
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Fri 9/18
11:59 pm-9:48 am
1 stop7h 49m
Buffalo
Sun 10/4
8:45 am-10:22 am
Nonstop3h 37m
$428
Quickest round-trip
DenverBuffalo
DEN Denver Intl - BUF Buffalo
DENBUF
Denver Intl
Fri 9/11
4:05 pm-9:15 pm
Nonstop3h 10m
Buffalo
Mon 9/14
6:50 am-8:15 am
Nonstop3h 25m
$435
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Denver to Buffalo
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Buffalo in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Denver-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Buffalo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Denver to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from Denver with our price prediction graph.
DEN-BUF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Denver to Buffalo
Prices
Airlines
More
How far ahead should I book a flight from Denver to Buffalo?
The best time to book flights from Denver to Buffalo is 79 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, January is the cheapest month in which you can book a flight from Denver to Buffalo (average of $256). Flying from Denver to Buffalo in July is currently the most expensive (average of $515). 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 August 15, 2026.
It’s optimal to fly from Denver to Buffalo in the morning. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight at noon.
What’s the top layover airport for flights from Denver to Buffalo?
Share of 1-stop round-trip flights from Denver to Buffalo chosen by Cheapflights users in the past 12 months, using the same layover each way.
Baltimore (BWI) – chosen by Cheapflights users on 67% of 1-stop itineraries from Denver to Buffalo on Cheapflights.
What’s the cheapest layover airport for flights from Denver to Buffalo?
Average round-trip fare for 1-stop flights from Denver to Buffalo, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Baltimore (BWI) is the most affordable 1-stop option, with an average round-trip price of $530.
What’s the fastest layover option from Denver to Buffalo?
Shortest average travel time for 1-stop one-way flights from Denver to Buffalo, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 4h 35m.
Which airport typically offers the quickest layover for flights from Denver to Buffalo?
Average layover duration for 1-stop one-way flights from Denver to Buffalo, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (MDW) offer the fastest connection on this route, with an average layover time of 0h 48m.
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 August 15, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Denver to Buffalo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Related info for your journey
Find useful and relevant information for your journey from Denver to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsLockport
Cheektowaga
Amherst
Williamsville
Orchard Park
Eden
Bowmansville
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Buffalo flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Denver
Popular flights
Alternative routes for Denver to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 15, 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 August 15, 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 August 15, 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 August 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$256 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$381 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$193 | Average$316 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$198 | Average$298 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$215 | Average$464 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$308 | Average$498 | FlexibilityNo cancel fee | On-time63% |