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 13/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
28 May — 4 Jun1
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.
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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 28 April 2026.
Wed 13/52:49 p.m.
BUF
-
DEN
1 stop9h 35m
Frontier
Fri 15/511:54 p.m.
DEN
-
BUF
1 stop9h 39m
Frontier
Deal found 24/4C$ 334
Thu 14/511:36 a.m.
BUF
-
DEN
1 stop12h 48m
Frontier
Mon 18/56:55 a.m.
DEN
-
BUF
2 stops25h 46m
Frontier
Deal found 24/4C$ 367
Thu 28/511:36 a.m.
BUF
-
DEN
1 stop12h 48m
Frontier
Thu 4/611:54 p.m.
DEN
-
BUF
1 stop12h 00m
Frontier
Deal found 23/4C$ 368
Mon 25/52:49 p.m.
BUF
-
DEN
2 stops25h 43m
Frontier
Mon 1/611:54 p.m.
DEN
-
BUF
1 stop8h 47m
Frontier
Deal found 25/4C$ 446
Wed 12/84:30 p.m.
BUF
-
DEN
1 stop9h 15m
Delta
Sun 16/812:55 a.m.
DEN
-
BUF
1 stop5h 28m
Delta
Deal found 23/4C$ 455
Wed 12/86:25 p.m.
BUF
-
DEN
1 stop6h 00m
Southwest
Mon 17/89:25 a.m.
DEN
-
BUF
1 stop10h 50m
Southwest
Deal found 23/4C$ 463
Sat 13/610:05 p.m.
BUF
-
DEN
1 stop12h 15m
Frontier
Mon 15/611:46 p.m.
DEN
-
BUF
1 stop9h 09m
Frontier
Deal found 26/4C$ 472
Wed 27/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Wed 3/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 484
Thu 20/88:57 p.m.
BUF
-
DEN
1 stop13h 23m
Frontier
Mon 24/811:42 p.m.
DEN
-
BUF
1 stop8h 58m
Frontier
Deal found 26/4C$ 485
Sat 30/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Tue 2/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 26/4C$ 496
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 28 April 2026.
Thu 13/88:55 a.m.
BUF
-
DEN
Nonstop3h 40m
United Airlines
Tue 25/86:05 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 28/4C$ 558
Tue 22/98:05 a.m.
BUF
-
DEN
2 stops13h 50m
Southwest
Fri 25/94:05 p.m.
DEN
-
BUF
Nonstop3h 05m
Southwest
Deal found 27/4C$ 578
Thu 13/85:40 a.m.
BUF
-
DEN
2 stops7h 45m
Southwest
Tue 25/86:00 a.m.
DEN
-
BUF
2 stops7h 15m
Southwest
Deal found 28/4C$ 598
Fri 22/57:52 p.m.
BUF
-
DEN
1 stop6h 38m
United Airlines
Mon 25/55:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 601
Thu 20/86:50 a.m.
BUF
-
DEN
Nonstop3h 25m
Southwest
Mon 24/84:05 p.m.
DEN
-
BUF
Nonstop3h 05m
Southwest
Deal found 26/4C$ 631
Mon 25/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Mon 1/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 25/4C$ 631
Thu 2/75:52 p.m.
BUF
-
DEN
1 stop6h 07m
United Airlines
Mon 6/75:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 24/4C$ 645
Thu 2/74:40 p.m.
BUF
-
DEN
Nonstop3h 35m
Southwest
Mon 6/711:55 p.m.
DEN
-
BUF
1 stop10h 05m
Southwest
Deal found 24/4C$ 645
Wed 22/74:25 p.m.
BUF
-
DEN
2 stops8h 25m
Southwest
Sun 26/711:50 p.m.
DEN
-
BUF
2 stops8h 35m
Southwest
Deal found 25/4C$ 672
Sat 20/69:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Tue 23/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 680
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 28 April 2026.
Wed 27/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Wed 3/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 484
Sat 30/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Tue 2/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 26/4C$ 496
Sat 23/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Sat 30/55:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 508
Tue 22/93:55 p.m.
BUF
-
DEN
Nonstop3h 25m
Southwest
Fri 25/94:05 p.m.
DEN
-
BUF
Nonstop3h 05m
Southwest
Deal found 24/4C$ 558
Thu 28/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Thu 28/55:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 570
Wed 9/93:55 p.m.
BUF
-
DEN
Nonstop3h 25m
Southwest
Wed 16/91:40 p.m.
DEN
-
BUF
Nonstop3h 05m
Southwest
Deal found 27/4C$ 575
Tue 9/69:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Thu 25/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 28/4C$ 588
Wed 27/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Tue 9/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 607
Sat 20/69:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Tue 23/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 25/4C$ 611
Tue 21/79:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Wed 22/75:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 24/4C$ 612
Sat 23/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Tue 26/55:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 619
Last-minute flights from Buffalo to Denver
Discover last-minute flight deals from Buffalo to Denver. Data last updated 28 April 2026 and is based on user searches.
Wed 13/52:49 p.m.
BUF
-
DEN
1 stop9h 35m
Frontier
Fri 15/511:54 p.m.
DEN
-
BUF
1 stop9h 39m
Frontier
Deal found 24/4C$ 334
Thu 14/511:36 a.m.
BUF
-
DEN
1 stop12h 48m
Frontier
Mon 18/56:55 a.m.
DEN
-
BUF
2 stops25h 46m
Frontier
Deal found 24/4C$ 367
Sat 23/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Sat 30/55:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 508
Sat 23/53:25 p.m.
BUF
-
DEN
Nonstop3h 35m
Southwest
Tue 26/511:50 p.m.
DEN
-
BUF
1 stop7h 10m
Southwest
Deal found 27/4C$ 522
Mon 25/52:49 p.m.
BUF
-
DEN
2 stops25h 43m
Frontier
Mon 1/611:54 p.m.
DEN
-
BUF
1 stop8h 47m
Frontier
Deal found 25/4C$ 446
Mon 25/55:25 a.m.
BUF
-
DEN
1 stop7h 43m
American Airlines
Mon 1/611:59 p.m.
DEN
-
BUF
1 stop8h 13m
American Airlines
Deal found 25/4C$ 536
Wed 27/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Wed 3/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 27/4C$ 484
Thu 28/511:36 a.m.
BUF
-
DEN
1 stop12h 48m
Frontier
Thu 4/611:54 p.m.
DEN
-
BUF
1 stop12h 00m
Frontier
Deal found 23/4C$ 368
Sat 30/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Tue 2/65:40 p.m.
DEN
-
BUF
Nonstop3h 18m
United Airlines
Deal found 26/4C$ 496
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 28 April 2026.
Thu 13/811:35 a.m.
BUF
-
DEN
1 stop12h 30m
Frontier
Deal found 27/4C$ 213
Wed 12/88:55 a.m.
BUF
-
DEN
Nonstop3h 40m
United Airlines
Deal found 26/4C$ 243
Mon 25/59:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Deal found 27/4C$ 255
Wed 1/77:52 p.m.
BUF
-
DEN
1 stop6h 38m
United Airlines
Deal found 25/4C$ 256
Fri 3/711:29 a.m.
BUF
-
DEN
1 stop7h 10m
Sun Country Air
Deal found 25/4C$ 258
Thu 21/54:55 p.m.
BUF
-
DEN
1 stop9h 38m
Delta
Deal found 25/4C$ 269
Wed 1/76:29 a.m.
BUF
-
DEN
1 stop5h 24m
Delta
Deal found 25/4C$ 286
Sat 4/76:35 a.m.
BUF
-
DEN
1 stop8h 38m
JetBlue
Deal found 23/4C$ 293
Tue 23/69:00 a.m.
BUF
-
DEN
Nonstop3h 35m
United Airlines
Deal found 24/4C$ 299
Fri 18/94:30 p.m.
BUF
-
DEN
1 stop9h 15m
Delta
Deal found 23/4C$ 300
Wed 19/88:55 a.m.
BUF
-
DEN
Nonstop3h 40m
United Airlines
Deal found 27/4C$ 304
Wed 21/107:35 p.m.
BUF
-
DEN
1 stop5h 24m
Delta
Deal found 27/4C$ 312
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 28 April 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 28 April 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 13/8
8:55 a.m.-10:35 a.m.
Nonstop3h 40m
Denver Intl
Tue 25/8
6:05 p.m.-11:23 p.m.
Nonstop3h 18m
C$ 558
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 22/9
8:05 a.m.-7:55 p.m.
2 stops13h 50m
Denver Intl
Fri 25/9
4:05 p.m.-9:10 p.m.
Nonstop3h 05m
C$ 578
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 13/8
5:40 a.m.-11:25 a.m.
2 stops7h 45m
Denver Intl
Tue 25/8
6:00 a.m.-3:15 p.m.
2 stops7h 15m
C$ 598
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Fri 22/5
7:52 p.m.-12:30 a.m.
1 stop6h 38m
Denver Intl
Mon 25/5
5:40 p.m.-10:58 p.m.
Nonstop3h 18m
C$ 601
Quickest round-trip
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 20/8
6:50 a.m.-8:15 a.m.
Nonstop3h 25m
Denver Intl
Mon 24/8
4:05 p.m.-9:10 p.m.
Nonstop3h 05m
C$ 631
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Mon 25/5
9:00 a.m.-10:35 a.m.
Nonstop3h 35m
Denver Intl
Mon 1/6
5:40 p.m.-10:58 p.m.
Nonstop3h 18m
C$ 631
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 2/7
5:52 p.m.-9:59 p.m.
1 stop6h 07m
Denver Intl
Mon 6/7
5:40 p.m.-10:58 p.m.
Nonstop3h 18m
C$ 645
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 2/7
4:40 p.m.-6:15 p.m.
Nonstop3h 35m
Denver Intl
Mon 6/7
11:55 p.m.-12:00 p.m.
1 stop10h 05m
C$ 645
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Wed 22/7
4:25 p.m.-10:50 p.m.
2 stops8h 25m
Denver Intl
Sun 26/7
11:50 p.m.-10:25 a.m.
2 stops8h 35m
C$ 672
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Sat 20/6
9:00 a.m.-10:35 a.m.
Nonstop3h 35m
Denver Intl
Tue 23/6
5:40 p.m.-10:58 p.m.
Nonstop3h 18m
C$ 680
Flights are sorted by cheapest round-trip flights first.
Deals found on 26/4
Showing 1-10 of 21 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
More
How far ahead should I book a flight from Buffalo to Denver?
To ensure you get the cheapest price possible for a flight from Buffalo to Denver, you should look to book at least 89 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, August is the cheapest month in which you can book a flight from Buffalo to Denver (average of C$ 364). Flying from Buffalo to Denver in January is currently the most expensive (average of C$ 615). 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 28 April 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 25 April 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.
How much does it cost to fly round-trip from Buffalo to Denver?
What’s the top layover airport for flights from Buffalo to Denver?
Share of one-stop round-trip flights from Buffalo to Denver chosen by Cheapflights users in the past 12 months, using the same layover each way.
Atlanta (ATL) – chosen by Cheapflights users on 50% of one-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.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of C$ 343.
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 New York (JFK) have the shortest average one-way travel time for 1-stop routes: 6h 50m.
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 New York (JFK) offer the fastest connection on this route, with an average layover time of 1h 30m.
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 28 April 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.
I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
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.
How popular is this Buffalo to Denver flight route?
This flight path from Buffalo to Denver Intl was viewed by 151 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 9h 15m. Fly via Frontier or Delta 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$ 189. Other airlines that can offer you cheap pricing are Frontier, from C$ 203, and Southwest, from C$ 364. You may be able to fly from Buffalo to Denver for 61% 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, August is the cheapest month in which you can book a flight from Buffalo to Denver (average of C$ 364). Flying from Buffalo to Denver in January is currently the most expensive (average of C$ 615). 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 28 April 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 28 April 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!
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