$108+ Cheap flights from Buffalo to Denver (BUF - DEN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
Nov 22 — Nov 291
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Buffalo to Denver Intl are usually found in May or November, booked 37 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday
Cheap flight deals from Buffalo to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Buffalo to DenverExplore the most affordable flight options available from Buffalo to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
Explore the most affordable flight options available from Buffalo to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/91:15 pm -
1 stop8h 42m
Tue 12/158:16 pm -
1 stop14h 04m
Deal found 10/22![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Fri 12/111:15 pm -
1 stop19h 14m
Tue 12/1510:18 am -
2 stops24h 02m
Deal found 10/20![Frontier logo]()
$212
This Cheapflightsfares deal was found by Cheapflights users on 10/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:02 pm -
1 stop25h 58m
Wed 11/1812:18 pm -
1 stop21h 41m
Deal found 10/20![Frontier logo]()
$234
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:00 pm -
1 stop9h 33m
Sat 11/1410:58 am -
1 stop23h 01m
Deal found 10/22![Frontier logo]()
$235
This Frontier deal was found by Cheapflights users on 10/22. 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 12/91:15 pm -
1 stop8h 42m
Thu 12/176:58 pm -
1 stop11h 54m
Deal found 10/22![Frontier logo]()
$236
This Priceline deal was found by Cheapflights users on 10/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:54 pm -
1 stop9h 06m
Wed 11/2511:59 pm -
1 stop10h 29m
Deal found 10/19![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/192:34 pm -
1 stop8h 59m
Thu 11/2611:59 pm -
1 stop18h 25m
Deal found 10/22![Frontier logo]()
$240
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:14 pm -
1 stop11h 22m
Tue 11/2411:59 pm -
1 stop18h 25m
Deal found 10/22![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Fri 12/111:15 pm -
1 stop19h 14m
Sun 12/131:24 pm -
2 stops20h 56m
Deal found 10/20![Frontier logo]()
$257
Best flights from Buffalo to DenverDiscover carefully curated flight deals from Buffalo to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2026.
Discover carefully curated flight deals from Buffalo to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2026.
This Southwest deal was found by Cheapflights users on 10/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/183:55 pm -
2 stops8h 45m
Wed 11/258:55 pm -
1 stop11h 30m
Deal found 10/20![Southwest logo]()
$346
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 12/227:52 pm -
1 stop6h 23m
Wed 12/2311:59 pm -
1 stop7h 46m
Deal found 10/21![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 10/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2111:30 am -
1 stop7h 45m
Sun 1/246:25 am -
1 stop13h 40m
Deal found 10/21![Southwest logo]()
$356
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Fri 1/87:03 am -
1 stop7h 22m
Mon 1/115:33 pm -
Nonstop3h 20m
Deal found 10/20![United Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/118:50 am -
Nonstop3h 45m
Mon 11/165:25 pm -
Nonstop3h 08m
Deal found 10/22![United Airlines logo]()
$425
This Southwest deal was found by Cheapflights users on 10/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/255:00 pm -
1 stop7h 40m
Tue 12/295:15 am -
1 stop8h 40m
Deal found 10/19![Southwest logo]()
$432
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Fri 11/138:50 am -
Nonstop3h 45m
Wed 11/185:25 pm -
Nonstop3h 08m
Deal found 10/20![United Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/258:15 am -
Nonstop4h 00m
Sun 1/311:59 pm -
1 stop7h 46m
Deal found 10/22![United Airlines logo]()
$482
This Southwest deal was found by Cheapflights users on 10/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:40 pm -
Nonstop3h 50m
Sat 11/145:25 pm -
Nonstop3h 05m
Deal found 10/20![Southwest logo]()
$559
This Southwest deal was found by Cheapflights users on 10/22. 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 12/253:55 pm -
2 stops8h 45m
Sun 1/35:00 am -
1 stop7h 25m
Deal found 10/22![Southwest logo]()
$575
This Southwest deal was found by Cheapflights users on 10/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:40 pm -
Nonstop3h 50m
Wed 11/2512:45 pm -
Nonstop3h 00m
Deal found 10/18![Southwest logo]()
$584
Last-minute flights from Buffalo to DenverDiscover last-minute flight deals from Buffalo to Denver. Data last updated October 23, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Denver. Data last updated October 23, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:39 pm -
1 stop28h 56m
Wed 11/117:10 pm -
1 stop19h 37m
Deal found 10/20![Frontier logo]()
$296
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:00 pm -
1 stop9h 33m
Sat 11/1410:58 am -
1 stop23h 01m
Deal found 10/22![Frontier logo]()
$235
This Cheapflightsfares deal was found by Cheapflights users on 10/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:02 pm -
1 stop25h 58m
Wed 11/1812:18 pm -
1 stop21h 41m
Deal found 10/20![Frontier logo]()
$234
This Cheapflightsfares deal was found by Cheapflights users on 10/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:48 pm -
1 stop9h 45m
Wed 11/1812:18 pm -
1 stop21h 41m
Deal found 10/20![Frontier logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:00 pm -
2 stops20h 22m
Wed 11/2511:59 pm -
1 stop10h 29m
Deal found 10/21![Frontier logo]()
$292
This Priceline deal was found by Cheapflights users on 10/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:54 pm -
1 stop9h 06m
Wed 11/2511:59 pm -
1 stop10h 29m
Deal found 10/19![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/192:34 pm -
1 stop8h 59m
Thu 11/2611:59 pm -
1 stop18h 25m
Deal found 10/22![Frontier logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:34 pm -
1 stop8h 59m
Mon 11/238:59 pm -
2 stops21h 25m
Deal found 10/21![Frontier logo]()
$290
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:14 pm -
1 stop11h 22m
Tue 11/2411:59 pm -
1 stop18h 25m
Deal found 10/22![Frontier logo]()
$256
One-way flights from Buffalo to DenverSearch for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
Search for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/91:15 pm -
1 stop8h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/71:15 pm -
1 stop19h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$114
This Super.com deal was found by Cheapflights users on 10/22. 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.
Mon 11/91:48 pm -
1 stop9h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$116
This Frontier deal was found by Cheapflights users on 10/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:00 pm -
1 stop9h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$118
This Cheapflightsfares deal was found by Cheapflights users on 10/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:14 pm -
1 stop11h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$122
This CheapOair deal was found by Cheapflights users on 10/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/219:47 am -
1 stop25h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:15 pm -
2 stops45h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$130
This Cheapflightsfares deal was found by Cheapflights users on 10/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:20 pm -
1 stop27h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Frontier logo]()
$134
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:00 pm -
1 stop9h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$138
This Expedia deal was found by Cheapflights users on 10/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:00 pm -
1 stop9h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Frontier logo]()
$140
Find flight deals from Buffalo to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $207 (Kiwi.com) |
One-way from | $108 (Kiwi.com) |
Popular in | July |
Cheapest in | May |
Average price | $432 |
Good round-trip deal | $425 or less |
Good one-way deal | $222 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 23, 2026.
Use the filters below to find and compare flights from Buffalo to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Mon 11/9
8:50 am-10:35 am
Nonstop3h 45m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$158
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Wed 11/25
8:50 am-10:35 am
Nonstop3h 45m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$158
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Tue 12/1
6:55 pm-10:40 pm
1 stop5h 45m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$168
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Mon 12/21
6:30 pm-1:05 am
1 stop8h 35m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$168
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Sun 12/20
6:35 pm-9:48 pm
1 stop29h 13m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$181
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Tue 11/10
8:50 am-10:35 am
Nonstop3h 45m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$213
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Tue 12/22
6:59 pm-12:20 am
1 stop7h 21m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$220
Quickest round-trip
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Fri 11/13
4:55 pm-6:35 pm
Nonstop3h 40m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$227
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Mon 12/21
8:15 am-10:15 am
Nonstop4h 00m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$254
BuffaloDenver
BUF Buffalo - DEN Denver Intl
BUFDEN
Buffalo
Tue 12/22
3:05 pm-10:10 pm
2 stops9h 05m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$269
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Buffalo to Denver
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Denver in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | 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 Buffalo-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Buffalo to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Buffalo with our price prediction graph.
BUF-DEN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Buffalo to Denver
Prices
More
How far ahead should I book a flight from Buffalo to Denver?
Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Buffalo to Denver?
Currently, May is the cheapest month in which you can book a flight from Buffalo to Denver (average of $388). Flying from Buffalo to Denver in July is currently the most expensive (average of $499). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BUF to DEN?
Find hourly flight availability from Buffalo to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 23, 2026.
One of the essential ways to save on airfare from Buffalo to Denver is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 48% on airfare.
What’s the top layover airport for flights from Buffalo to Denver?
Share of 1-stop round-trip flights from Buffalo to Denver chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 75% of 1-stop itineraries from Buffalo to Denver on Cheapflights.
What’s the cheapest layover airport for flights from Buffalo to Denver?
Average round-trip fare for 1-stop flights from Buffalo to Denver, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $298.
What’s the fastest layover option from Buffalo to Denver?
Shortest average travel time for 1-stop one-way flights from Buffalo to Denver, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 5h 36m.
Which airport typically offers the quickest layover for flights from Buffalo to Denver?
Average layover duration for 1-stop one-way flights from Buffalo to Denver, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 35m.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated October 23, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Buffalo to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Buffalo to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Broomfield
Englewood
Golden
Black Hawk
Wheat Ridge
Silverthorne
Fort Morgan
Greeley
Frisco
Winter Park
Limon
Central City
Manitou Springs
Glendale
Cripple Creek
Evergreen
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Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 23, 2026.
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Buffalo and Denver flights
Browse other Buffalo and Denver flight options. Last updated on October 23, 2026.
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Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on October 23, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Buffalo to Denver
Discover the top 6 airlines that operate flights from Buffalo to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$94 | Average$281 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$436 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$180 | Average$268 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$218 | Average$305 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$251 | Average$445 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$313 | Average$486 | FlexibilityNo cancel fee | On-time63% |