$84+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BUF
Feb 20 — Feb 271
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 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 January 21, 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 January 21, 2026.
This CheapOair deal was found by Cheapflights users on 1/20. 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 2/1812:05 pm
DEN
- BUF
1 stop20h 07m
Frontier
Mon 2/231:48 pm
BUF
- DEN
1 stop9h 53m
Frontier
Deal found 1/20![Frontier logo]()
$180
This CheapOair deal was found by Cheapflights users on 1/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:20 pm
DEN
- BUF
1 stop15h 14m
Frontier
Sat 2/2812:00 pm
BUF
- DEN
1 stop11h 35m
Frontier
Deal found 1/19![Frontier logo]()
$181
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/185:44 pm
DEN
- BUF
Nonstop3h 15m
United Airlines
Wed 2/258:25 am
BUF
- DEN
Nonstop3h 44m
United Airlines
Deal found 1/21![United Airlines logo]()
$197
This Frontier deal was found by Cheapflights users on 1/20. 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 1/20![Frontier logo]()
$199
This Frontier deal was found by Cheapflights users on 1/18. 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.
Wed 2/2512:59 am
DEN
- BUF
1 stop9h 55m
Frontier
Mon 3/21:48 pm
BUF
- DEN
1 stop9h 53m
Frontier
Deal found 1/18![Frontier logo]()
$201
This CheapOair deal was found by Cheapflights users on 1/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:20 pm
DEN
- BUF
1 stop15h 14m
Frontier
Mon 3/21:48 pm
BUF
- DEN
1 stop9h 53m
Frontier
Deal found 1/19![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/54:14 pm
DEN
- BUF
2 stops18h 30m
Multiple Airlines
Mon 2/91:39 pm
BUF
- DEN
1 stop10h 06m
Multiple Airlines
Deal found 1/20![Multiple Airlines logo]()
$204
This United Airlines deal was found by Cheapflights users on 1/20. 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 2/185:44 pm
DEN
- BUF
Nonstop3h 15m
United Airlines
Sun 2/228:25 am
BUF
- DEN
Nonstop3h 44m
United Airlines
Deal found 1/20![United Airlines logo]()
$206
This Frontier deal was found by Cheapflights users on 1/20. 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.
Fri 2/276:00 am
DEN
- BUF
1 stop8h 10m
Frontier
Sat 2/2812:00 pm
BUF
- DEN
1 stop11h 35m
Frontier
Deal found 1/20![Frontier logo]()
$215
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 January 21, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $180 (CheapOair) |
One-way from | $84 (Kiwi.com) |
Popular in | January |
Cheapest in | October |
Average price | $502 |
Good round-trip deal | $199 or less |
Good one-way deal | $100 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 January 21, 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
Wed 2/18
5:44 pm-10:59 pm
Nonstop3h 15m
Buffalo
Sun 2/22
6:32 pm-11:36 pm
1 stop7h 04m
$216
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Tue 2/24
7:05 am-4:58 pm
1 stop7h 53m
Buffalo
Wed 3/4
3:39 pm-10:21 pm
1 stop8h 42m
$217
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Fri 6/12
5:30 pm-10:45 pm
Nonstop3h 15m
Buffalo
Fri 6/19
5:50 pm-11:18 pm
1 stop7h 28m
$225
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 5/4
11:59 pm-11:03 am
1 stop9h 04m
Buffalo
Fri 5/8
7:30 pm-11:51 pm
1 stop6h 21m
$235
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 6/1
12:55 am-8:23 am
1 stop5h 28m
Buffalo
Tue 6/16
3:50 pm-10:49 pm
1 stop8h 59m
$235
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Fri 4/17
1:25 pm-11:57 pm
1 stop8h 32m
Buffalo
Mon 4/20
3:53 pm-9:27 pm
1 stop7h 34m
$243
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Mon 3/16
11:55 pm-10:57 am
1 stop9h 02m
Buffalo
Wed 3/18
11:37 am-7:36 pm
1 stop9h 59m
$247
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Wed 2/18
7:00 am-4:52 pm
2 stops7h 52m
Buffalo
Wed 2/25
7:00 am-1:38 pm
2 stops8h 38m
$258
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Fri 3/6
5:55 pm-11:10 pm
Nonstop3h 15m
Buffalo
Mon 3/9
5:29 pm-11:30 pm
1 stop8h 01m
$259
DenverBuffalo
DEN - BUF
DENBUF
Denver Intl
Sun 3/1
5:44 pm-10:59 pm
Nonstop3h 15m
Buffalo
Tue 3/3
7:00 am-12:33 pm
1 stop7h 33m
$264
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Buffalo flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Denver to Buffalo
How far ahead should I book a flight from Denver to Buffalo?
Use this chart to determine the optimal time to book a round-trip flight from Denver to Buffalo. Price data was last updated on January 16, 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 January 21, 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 January 21, 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.
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from 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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Alternative routes for Denver to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
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 January 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$234 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$336 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$317 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$182 | Average$294 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$198 | Average$259 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$270 | Average$442 | FlexibilityNo cancel fee | On-time63% |