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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
16 Apr — 23 Apr1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Buffalo to Denver Intl are usually found in August or October, booked 90 days in advance, depart on a Friday or Wednesday and return on a Monday
Cheap flight deals from Buffalo to Denver
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Buffalo to Denver
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 17 March 2026.
Thu 9/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Thu 16/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 12/3C$ 396
Thu 14/58:49 p.m.
BUF
-
DEN
2 stops27h 35m
Frontier
Tue 19/511:54 p.m.
DEN
-
BUF
1 stop12h 00m
Frontier
Deal found 15/3C$ 403
Fri 17/42:34 p.m.
BUF
-
DEN
1 stop7h 08m
Delta
Mon 20/45:45 a.m.
DEN
-
BUF
1 stop8h 08m
Delta
Deal found 12/3C$ 407
Sat 18/43:25 p.m.
BUF
-
DEN
Nonstop3h 35m
Southwest
Thu 23/411:55 p.m.
DEN
-
BUF
1 stop5h 55m
Southwest
Deal found 13/3C$ 409
Mon 11/52:28 p.m.
BUF
-
DEN
1 stop9h 45m
JetBlue
Wed 3/610:34 p.m.
DEN
-
BUF
1 stop9h 26m
JetBlue
Deal found 16/3C$ 415
Tue 2/66:00 a.m.
BUF
-
DEN
1 stop8h 01m
JetBlue
Fri 5/611:59 p.m.
DEN
-
BUF
1 stop6h 59m
JetBlue
Deal found 13/3C$ 419
Tue 26/57:52 p.m.
BUF
-
DEN
1 stop6h 38m
United Airlines
Sat 30/511:59 p.m.
DEN
-
BUF
1 stop7h 52m
United Airlines
Deal found 12/3C$ 423
Sun 12/46:15 a.m.
BUF
-
DEN
1 stop5h 28m
Delta
Fri 17/411:55 p.m.
DEN
-
BUF
1 stop9h 17m
Delta
Deal found 16/3C$ 430
Thu 4/67:31 p.m.
BUF
-
DEN
1 stop5h 27m
Delta
Sun 7/612:55 a.m.
DEN
-
BUF
1 stop5h 28m
Delta
Deal found 14/3C$ 431
Tue 11/87:35 p.m.
BUF
-
DEN
1 stop4h 54m
Delta
Sun 16/812:55 a.m.
DEN
-
BUF
1 stop5h 28m
Delta
Deal found 16/3C$ 434
Tue 2/61:10 p.m.
BUF
-
DEN
2 stops8h 00m
Southwest
Fri 5/67:40 a.m.
DEN
-
BUF
2 stops9h 35m
Southwest
Deal found 12/3C$ 437
Wed 27/59:25 a.m.
BUF
-
DEN
2 stops7h 45m
Southwest
Fri 29/57:00 p.m.
DEN
-
BUF
1 stop12h 55m
Southwest
Deal found 12/3C$ 438
Best flights from Buffalo to Denver
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 17 March 2026.
Thu 4/67:39 p.m.
BUF
-
DEN
1 stop6h 54m
Delta
Mon 8/611:59 p.m.
DEN
-
BUF
1 stop8h 36m
Delta
Deal found 15/3C$ 430
Wed 19/812:35 p.m.
BUF
-
DEN
1 stop5h 10m
Southwest
Sat 22/87:35 a.m.
DEN
-
BUF
2 stops8h 00m
Southwest
Deal found 12/3C$ 471
Tue 14/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Tue 21/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 16/3C$ 486
Fri 3/711:29 a.m.
BUF
-
DEN
1 stop27h 45m
Sun Country Air
Sat 11/710:13 a.m.
DEN
-
BUF
1 stop22h 13m
Sun Country Air
Deal found 12/3C$ 530
Thu 20/85:40 a.m.
BUF
-
DEN
2 stops7h 45m
Southwest
Mon 24/810:20 a.m.
DEN
-
BUF
1 stop10h 20m
Southwest
Deal found 12/3C$ 512
Mon 15/67:35 p.m.
BUF
-
DEN
1 stop4h 54m
Delta
Sun 21/612:59 a.m.
DEN
-
BUF
1 stop8h 16m
Delta
Deal found 16/3C$ 533
Mon 18/57:10 p.m.
BUF
-
DEN
1 stop6h 49m
United Airlines
Sat 23/55:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 12/3C$ 607
Fri 29/58:00 p.m.
BUF
-
DEN
1 stop5h 15m
Southwest
Sun 7/67:05 p.m.
DEN
-
BUF
Nonstop3h 05m
Southwest
Deal found 16/3C$ 612
Fri 19/64:10 p.m.
BUF
-
DEN
Nonstop3h 35m
Southwest
Tue 23/611:50 p.m.
DEN
-
BUF
1 stop6h 10m
Southwest
Deal found 12/3C$ 616
Sun 12/75:15 a.m.
BUF
-
DEN
Nonstop3h 35m
Southwest
Tue 14/71:25 p.m.
DEN
-
BUF
Nonstop3h 05m
Southwest
Deal found 15/3C$ 634
Direct flights from Buffalo to Denver
Explore direct flight options from Buffalo to Denver based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 March 2026.
Thu 9/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Thu 16/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 12/3C$ 396
Tue 9/69:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Sun 14/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 12/3C$ 459
Fri 10/79:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Tue 14/75:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 12/3C$ 464
Thu 28/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Sun 31/55:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 12/3C$ 479
Tue 14/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Tue 21/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 16/3C$ 486
Sat 25/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Tue 28/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 16/3C$ 498
Fri 17/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Wed 22/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 12/3C$ 505
Sat 18/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Thu 23/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 13/3C$ 511
Mon 27/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Wed 29/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 16/3C$ 512
Mon 6/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Thu 9/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 16/3C$ 538
Fri 15/58:37 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Sat 23/55:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 12/3C$ 541
Last-minute flights from Buffalo to Denver
Discover last-minute flight deals from Buffalo to Denver. Data last updated 17 March 2026 and is based on user searches.
Tue 31/310:23 a.m.
BUF
-
DEN
1 stop8h 33m
Delta
Tue 7/47:30 a.m.
DEN
-
BUF
1 stop7h 21m
Delta
Deal found 16/3C$ 483
Mon 6/43:56 p.m.
BUF
-
DEN
1 stop7h 50m
Delta
Sat 18/41:46 p.m.
DEN
-
BUF
1 stop9h 04m
Delta
Deal found 16/3C$ 459
Thu 9/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Thu 16/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 12/3C$ 396
Sun 12/46:15 a.m.
BUF
-
DEN
1 stop5h 28m
Delta
Fri 17/411:55 p.m.
DEN
-
BUF
1 stop9h 17m
Delta
Deal found 16/3C$ 430
Sun 12/46:15 a.m.
BUF
-
DEN
1 stop5h 28m
Delta
Mon 13/411:55 p.m.
DEN
-
BUF
1 stop9h 11m
Delta
Deal found 13/3C$ 434
Tue 14/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Tue 21/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 16/3C$ 486
Thu 16/44:00 p.m.
BUF
-
DEN
1 stop7h 30m
Southwest
Mon 20/47:35 a.m.
DEN
-
BUF
2 stops10h 10m
Southwest
Deal found 12/3C$ 479
Fri 17/42:34 p.m.
BUF
-
DEN
1 stop7h 08m
Delta
Sat 18/410:19 a.m.
DEN
-
BUF
1 stop6h 32m
Delta
Deal found 12/3C$ 407
Fri 17/42:34 p.m.
BUF
-
DEN
1 stop7h 08m
Delta
Fri 17/411:55 p.m.
DEN
-
BUF
1 stop9h 17m
Delta
Deal found 12/3C$ 476
Sat 18/43:25 p.m.
BUF
-
DEN
Nonstop3h 35m
Southwest
Thu 23/411:55 p.m.
DEN
-
BUF
1 stop5h 55m
Southwest
Deal found 13/3C$ 409
Sat 25/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Tue 28/45:53 p.m.
DEN
-
BUF
Nonstop3h 17m
United Airlines
Deal found 16/3C$ 498
One-way flights from Buffalo to Denver
Search for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated 17 March 2026.
Wed 29/41:56 p.m.
BUF
-
DEN
1 stop10h 33m
Frontier
Deal found 15/3C$ 141
Sun 26/48:18 p.m.
BUF
-
DEN
1 stop29h 41m
Frontier
Deal found 12/3C$ 152
Tue 9/66:00 a.m.
BUF
-
DEN
1 stop8h 01m
JetBlue
Deal found 13/3C$ 185
Sat 11/48:30 a.m.
BUF
-
DEN
Nonstop3h 43m
United Airlines
Deal found 12/3C$ 199
Mon 22/65:52 p.m.
BUF
-
DEN
1 stop7h 45m
United Airlines
Deal found 12/3C$ 212
Thu 9/74:30 p.m.
BUF
-
DEN
1 stop9h 15m
Delta
Deal found 16/3C$ 215
Sat 12/99:00 a.m.
BUF
-
DEN
1 stop7h 02m
Delta
Deal found 13/3C$ 218
Sat 25/46:00 a.m.
BUF
-
DEN
2 stops10h 35m
Southwest
Deal found 12/3C$ 219
Tue 7/73:52 p.m.
BUF
-
DEN
1 stop9h 03m
JetBlue
Deal found 16/3C$ 233
Thu 14/52:28 p.m.
BUF
-
DEN
1 stop9h 45m
JetBlue
Deal found 13/3C$ 236
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 17 March 2026.
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 629,999 searches. Data last updated 17 March 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
Price
Cheapest round-trip
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 4/6
7:39 p.m.-12:33 a.m.
1 stop6h 54m
Denver Intl
Mon 8/6
11:59 p.m.-10:35 a.m.
1 stop8h 36m
C$ 430
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Wed 19/8
12:35 p.m.-3:45 p.m.
1 stop5h 10m
Denver Intl
Sat 22/8
7:35 a.m.-5:35 p.m.
2 stops8h 00m
C$ 471
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 14/4
8:30 a.m.-10:13 a.m.
Nonstop3h 43m
Denver Intl
Tue 21/4
5:53 p.m.-11:10 p.m.
Nonstop3h 17m
C$ 486
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 20/8
5:40 a.m.-11:25 a.m.
2 stops7h 45m
Denver Intl
Mon 24/8
10:20 a.m.-10:40 p.m.
1 stop10h 20m
C$ 512
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Fri 3/7
11:29 a.m.-1:14 p.m.
1 stop27h 45m
Denver Intl
Sat 11/7
10:13 a.m.-10:26 a.m.
1 stop22h 13m
C$ 530
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Mon 15/6
7:35 p.m.-10:29 p.m.
1 stop4h 54m
Denver Intl
Sun 21/6
12:59 a.m.-11:15 a.m.
1 stop8h 16m
C$ 533
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Mon 18/5
7:10 p.m.-11:59 p.m.
1 stop6h 49m
Denver Intl
Sat 23/5
5:40 p.m.-10:58 p.m.
Nonstop3h 18m
C$ 607
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Fri 29/5
8:00 p.m.-11:15 p.m.
1 stop5h 15m
Denver Intl
Sun 7/6
7:05 p.m.-12:10 a.m.
Nonstop3h 05m
C$ 612
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Fri 19/6
4:10 p.m.-5:45 p.m.
Nonstop3h 35m
Denver Intl
Tue 23/6
11:50 p.m.-8:00 a.m.
1 stop6h 10m
C$ 616
Quickest round-trip
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Sun 12/7
5:15 a.m.-6:50 a.m.
Nonstop3h 35m
Denver Intl
Tue 14/7
1:25 p.m.-6:30 p.m.
Nonstop3h 05m
C$ 634
Flights are sorted by cheapest round-trip flights first.
Deals found on 13/3
Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3
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
Airlines
How far ahead should I book a flight from Buffalo to Denver?
Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Denver. Price data was last updated on 13 March 2026.
To ensure you get the cheapest price possible for a flight from Buffalo to Denver, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Buffalo to Denver?
Currently, September is the cheapest month in which you can book a flight from Buffalo to Denver (average of C$ 162). Flying from Buffalo to Denver in November is currently the most expensive (average of C$ 297). 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 17 March 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 58% on flights from Buffalo to Denver by exploring options for tickets in the afternoon.
What is the cheapest day to fly from Buffalo to Denver?
Use this chart to determine the cheapest time to fly round-trip from Buffalo to Denver. Price data was last updated on 14 March 2026.
Travelers seeking maximum savings on their Buffalo to Denver flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Buffalo to Denver
Explore weekly flight availability from Buffalo to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 March 2026.
The most flights from BUF to DEN are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
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 17 March 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andFrontier
from Buffalo to Denver. 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.
pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
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.
What airports do I use to fly from Buffalo to Denver?
If you wish to fly to Denver from Buffalo, then you need to book flights from Buffalo to Denver Intl. There is 1 flight from Buffalo (BUF) to Denver Intl (DEN) per day to choose from. Flights to Denver from Buffalo are available from 3 different airlines, which means you should have some options if you want to compare airfare deals. 3h 43m is how long a nonstop flight from Buffalo to Denver Intl typically takes.
How popular is this Buffalo to Denver flight route?
This flight path from Buffalo to Denver Intl was viewed by 171 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Buffalo to Denver?
There are many flights that can get you from Buffalo to Denver in 3h 43m. Fly via Delta, Southwest, or United Airlines to get the fastest option. The distance between Buffalo and Denver is about 2181 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Buffalo to Denver round-trip?
Cheapflights users have booked flights from Buffalo to Denver round-trip from C$ 204. Other airlines that can offer you cheap pricing are United Airlines, from C$ 244, and Southwest, from C$ 379. You may be able to fly from Buffalo to Denver for 57% less than the average price by searching for these airlines.
Can I find deals for business class flights from Buffalo to Denver?
Yes. Cheapflights offers flight deals from Buffalo to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Buffalo to Denver?
Currently, September is the cheapest month in which you can book a flight from Buffalo to Denver (average of C$ 162). Flying from Buffalo to Denver in November is currently the most expensive (average of C$ 297). 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.
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 March 2026.
Discover the top 3 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 629,999 searches. Data last updated 17 March 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Buffalo to Denver?
When you search for this flight from Buffalo to Denver, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Buffalo to Denver?
Cheapflights helps you find that perfect flight to Denver from Buffalo by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Buffalo to Denver with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Buffalo to Denver flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Buffalo to Denver become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.