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Cheap flights from Buffalo to Denver from C$ 154

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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
31 Aug — 7 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to Denver

Enter your travel dates to find the best prices.

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 1 August 2026.

Thu 3/99:29 p.m.
BUF
-
DEN
1 stop12h 04m
Frontier
Tue 8/911:59 p.m.
DEN
-
BUF
1 stop10h 56m
Frontier
Deal found 28/7C$ 379
Mon 31/811:36 a.m.
BUF
-
DEN
2 stops11h 49m
Frontier
Fri 4/911:59 p.m.
DEN
-
BUF
1 stop8h 30m
Frontier
Deal found 29/7C$ 380
Thu 20/811:36 a.m.
BUF
-
DEN
2 stops29h 07m
Frontier
Sun 23/811:59 p.m.
DEN
-
BUF
1 stop8h 30m
Frontier
Deal found 1/8C$ 384
Fri 11/126:28 a.m.
BUF
-
DEN
1 stop7h 37m
JetBlue
Tue 15/1211:30 p.m.
DEN
-
BUF
1 stop8h 28m
JetBlue
Deal found 28/7C$ 386
Tue 15/96:51 p.m.
BUF
-
DEN
1 stop15h 01m
Frontier
Tue 22/96:40 a.m.
DEN
-
BUF
1 stop9h 09m
Frontier
Deal found 1/8C$ 391
Thu 3/99:29 p.m.
BUF
-
DEN
1 stop12h 04m
Frontier
Sun 6/911:59 p.m.
DEN
-
BUF
1 stop8h 30m
Frontier
Deal found 1/8C$ 401
Sat 24/107:00 a.m.
BUF
-
DEN
1 stop6h 55m
JetBlue
Sat 5/1212:55 p.m.
DEN
-
BUF
1 stop9h 04m
JetBlue
Deal found 28/7C$ 407
Wed 14/101:13 p.m.
BUF
-
DEN
2 stops20h 58m
Frontier
Sun 18/1011:48 p.m.
DEN
-
BUF
1 stop10h 30m
Frontier
Deal found 27/7C$ 412
Sat 15/810:02 p.m.
BUF
-
DEN
1 stop12h 05m
Frontier
Sat 22/811:59 p.m.
DEN
-
BUF
1 stop7h 24m
Frontier
Deal found 29/7C$ 415
Thu 17/912:49 p.m.
BUF
-
DEN
2 stops21h 15m
Frontier
Thu 8/1011:48 p.m.
DEN
-
BUF
1 stop10h 30m
Frontier
Deal found 30/7C$ 422
Fri 4/96:54 p.m.
BUF
-
DEN
2 stops22h 07m
Frontier
Sun 6/911:59 p.m.
DEN
-
BUF
1 stop8h 30m
Frontier
Deal found 28/7C$ 428

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 1 August 2026.

Round-trip from

C$ 379

One-way from

C$ 154

Popular in

July

Cheapest in

October

Average price

C$ 458

Good round-trip deal

C$ 616 or less

Good one-way deal

C$ 391 or less
Frontier
  • Frontier
  • 3/9-8/9
  • 2 total stops
  • 23h 00m total
  • Buffalo to Denver
Search Deals
JetBlue
  • JetBlue
  • 27/10
  • 1 total stop
  • 8h 10m total
  • Buffalo to Denver
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Buffalo to Denver Intl.
Search Deals
Price to beat on a one-way flight from Buffalo to Denver Intl.
Search Deals

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 629,999 searches. Data last updated 1 August 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 24/9

8:45 a.m.-10:22 a.m.

Nonstop3h 37m

Denver Intl

Tue 29/9

1:42 p.m.-11:11 p.m.

1 stop7h 29m

C$ 531

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 30/9

6:00 a.m.-11:25 a.m.

1 stop7h 25m

Denver Intl

Wed 7/10

1:20 p.m.-12:25 a.m.

1 stop9h 05m

C$ 534

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Mon 21/9

5:58 p.m.-10:13 p.m.

1 stop6h 15m

Denver Intl

Fri 25/9

5:31 p.m.-10:43 p.m.

Nonstop3h 12m

C$ 569
Quickest round-trip

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 18/12

8:35 a.m.-10:25 a.m.

Nonstop3h 50m

Denver Intl

Thu 24/12

3:50 p.m.-8:45 p.m.

Nonstop2h 55m

C$ 573

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Thu 17/9

6:50 a.m.-8:15 a.m.

Nonstop3h 25m

Denver Intl

Thu 8/10

5:20 a.m.-4:10 p.m.

1 stop8h 50m

C$ 580

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Mon 25/1

12:45 p.m.-7:30 p.m.

2 stops8h 45m

Denver Intl

Wed 27/1

8:55 a.m.-8:00 p.m.

2 stops9h 05m

C$ 585

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Mon 7/9

5:40 a.m.-11:25 a.m.

2 stops7h 45m

Denver Intl

Fri 11/9

5:00 a.m.-3:15 p.m.

2 stops8h 15m

C$ 597

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Mon 31/8

5:40 a.m.-11:25 a.m.

2 stops7h 45m

Denver Intl

Fri 4/9

5:00 a.m.-3:15 p.m.

2 stops8h 15m

C$ 597

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Sun 30/8

6:20 a.m.-11:25 a.m.

1 stop7h 05m

Denver Intl

Sun 6/9

6:20 p.m.-11:35 p.m.

Nonstop3h 15m

C$ 599

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 4/9

7:52 p.m.-11:34 p.m.

1 stop5h 42m

Denver Intl

Sun 6/9

6:00 a.m.-4:05 p.m.

1 stop8h 05m

C$ 624

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 22 resultsSorted by cheapest first
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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.
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

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 55 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, October is the cheapest month in which you can book a flight from Buffalo to Denver (average of C$ 376). Flying from Buffalo to Denver in July is currently the most expensive (average of C$ 700). 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 1 August 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 57% on flights from Buffalo to Denver by exploring options for tickets in the afternoon.

How much does it cost to fly round-trip from Buffalo to Denver?

Airfare is typical for this route at the moment.

Buffalo to Denver flights typically cost between C$ 336 and C$ 666 in September.
The cheapest round-trip price found within the last 5 days was C$ 379 on Frontier (3 Sep-8 Sep).

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 1 August 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.
Southwest
8.0
Very good
4,229 reviews
Check prices

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,229 reviews
Southwest
8.0
Very good
4,229 reviews
Check prices

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
10,062 reviews
Southwest
8.0
Very good
4,229 reviews
Check prices

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.6
Fair
2,740 reviews
Southwest
8.0
Very good
4,229 reviews
Check prices

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 25m 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 80 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 37m. Fly via United Airlines or Southwest 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$ 171. Other airlines that can offer you cheap pricing are United Airlines, from C$ 249, and Southwest, from C$ 374. You may be able to fly from Buffalo to Denver for 68% less than the average price by searching for these airlines.

  • What are the cheapest flights from Buffalo to Denver?

    The cheapest flight price from Buffalo to Denver is C$ 281. On average you can expect to pay C$ 547. The most popular route, (Buffalo - Denver Intl), can usually be booked for C$ 395.

  • Can I find deals for flights from Buffalo to Denver that include hotel bookings?

    Yes. In addition to deals on Buffalo to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Denver.

  • 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, October is the cheapest month in which you can book a flight from Buffalo to Denver (average of C$ 376). Flying from Buffalo to Denver in July is currently the most expensive (average of C$ 700). 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.

See more FAQs

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk

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Top 3 airlines flying from Buffalo to Denver

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 1 August 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 171AverageC$ 353FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapestC$ 249AverageC$ 643FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
SouthwestCheapestC$ 374AverageC$ 734FlexibilityNo cancel feeOn-time63%
Search Southwest flights

Fly with Cheapflights

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.

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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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