What is the cheapest airline that flies from Buffalo to Denver Intl?

United Airlines and Delta are the most popular carriers operating from Buffalo to Denver Intl

How many flights depart from Buffalo to Denver on average per week?

As of September 2026, there are 3 flights per week flying from Buffalo to Denver. The most common day of the week flights depart is Wed, with 67% of flights taking off on this day.

When did momondo last update prices for flights from Buffalo Airport to Denver Intl Airport?

Prices for flights from Buffalo Airport to Denver Intl Airport are updated daily.

How old do you have to be to fly from Buffalo Airport to Denver Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buffalo Airport to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

R2 297 Cheap Flights from Buffalo to Denver in 2026/27

Find the cheapest flights from Buffalo to Denver

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

19:59 - 0:30BUF Buffalo-DEN Denver Intl

6h 31m1 stop Washington, D.C. Dulles Intl

17:31 - 22:43DEN Denver Intl-BUF Buffalo

3h 12mdirect

R4 741United Airlines

Wed, Oct 14 - Wed, Oct 21

9:10 - 17:05BUF Buffalo-DEN Denver Intl

9h 55m2 stops Baltimore/Washington Miami

15:45 - 20:50DEN Denver Intl-BUF Buffalo

3h 05mdirect

R4 823Southwest

Tue, Nov 10 - Wed, Nov 11

12:15 - 15:07BUF Buffalo-DEN Denver Intl

4h 52m1 stop Detroit Metropolitan Wayne County

7:00 - 16:09DEN Denver Intl-BUF Buffalo

7h 09m1 stop Atlanta Hartsfield-Jackson

R4 872Delta

Tue, Oct 27 - Wed, Oct 28

12:15 - 17:32BUF Buffalo-DEN Denver Intl

7h 17m1 stop Detroit Metropolitan Wayne County

16:15 - 22:38DEN Denver Intl-BUF Buffalo

4h 23m1 stop Detroit Metropolitan Wayne County

R4 904Delta

Sat, Oct 31 - Wed, Nov 4

8:45 - 10:22BUF Buffalo-DEN Denver Intl

3h 37mdirect

17:25 - 22:33DEN Denver Intl-BUF Buffalo

3h 08mdirect

R4 953United Airlines

Sat, Oct 24 - Mon, Nov 2

11:00 - 18:40BUF Buffalo-DEN Denver Intl

9h 40m2 stops Nashville Intl Birmingham

8:30 - 16:30DEN Denver Intl-BUF Buffalo

6h 00m1 stop Baltimore/Washington

R4 986Southwest

Sat, Dec 5 - Tue, Dec 8

8:00 - 15:25BUF Buffalo-DEN Denver Intl

9h 25m2 stops Baltimore/Washington Cincinnati Cinci./N. Kentucky

8:10 - 18:10DEN Denver Intl-BUF Buffalo

8h 00m2 stops Lambert-St Louis Baltimore/Washington

R5 067Southwest

Sat, Dec 5 - Tue, Dec 8

15:55 - 22:40BUF Buffalo-DEN Denver Intl

8h 45m2 stops Baltimore/Washington Chicago Midway

6:30 - 22:50DEN Denver Intl-BUF Buffalo

14h 20m1 stop Tampa

R5 083Southwest

Tue, Nov 10 - Wed, Nov 11

10:46 - 16:22BUF Buffalo-DEN Denver Intl

7h 36m1 stop Chicago O'Hare Intl

17:31 - 22:43DEN Denver Intl-BUF Buffalo

3h 12mdirect

R5 116United Airlines

Wed, Oct 7 - Sat, Oct 10

8:45 - 10:22BUF Buffalo-DEN Denver Intl

3h 37mdirect

17:25 - 22:33DEN Denver Intl-BUF Buffalo

3h 08mdirect

R5 149United Airlines

Tue, Oct 20 - Tue, Oct 27

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Southwest flights from Buffalo to Denver

Our best Southwest deals on Buffalo to Denver flight tickets

Southwest

Nov 10

BUF9:10Buffalo

9h 55m

2 stops

DEN17:05Denver Intl

Nov 11

DEN15:45Denver Intl

3h 05m

BUF20:50Buffalo

R4 823

Southwest

Dec 5

BUF11:00Buffalo

9h 40m

2 stops

DEN18:40Denver Intl

Dec 8

DEN8:30Denver Intl

6h 00m

1 stop

BUF16:30Buffalo

R4 986

Southwest

Dec 5

BUF8:00Buffalo

9h 25m

2 stops

DEN15:25Denver Intl

Dec 8

DEN8:10Denver Intl

8h 00m

2 stops

BUF18:10Buffalo

R5 067

United Airlines flights from Buffalo to Denver

Our best United Airlines deals on Buffalo to Denver flight tickets

United Airlines

Oct 6

BUF15:05Buffalo

6h 25m

1 stop

DEN19:30Denver Intl

Oct 10

DEN17:31Denver Intl

3h 12m

BUF22:43Buffalo

R4 741

United Airlines

Oct 24

BUF8:45Buffalo

3h 37m

DEN10:22Denver Intl

Nov 2

DEN17:25Denver Intl

3h 08m

BUF22:33Buffalo

R4 953

United Airlines

Oct 7

BUF10:46Buffalo

7h 36m

1 stop

DEN16:22Denver Intl

Oct 10

DEN17:31Denver Intl

3h 12m

BUF22:43Buffalo

R5 116

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Wed 14/10

19:59-0:30

1 stop6h 31m

Denver Intl

Wed 21/10

17:31-22:43

Nonstop3h 12m

R4 741

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Tue 10/11

9:10-17:05

2 stops9h 55m

Denver Intl

Wed 11/11

15:45-20:50

Nonstop3h 05m

R4 823

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Tue 27/10

12:15-15:07

1 stop4h 52m

Denver Intl

Wed 28/10

7:00-16:09

1 stop7h 09m

R4 872

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Sat 31/10

12:15-17:32

1 stop7h 17m

Denver Intl

Wed 4/11

16:15-22:38

1 stop4h 23m

R4 904

Fastest return journey

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Sat 24/10

8:45-10:22

Nonstop3h 37m

Denver Intl

Mon 2/11

17:25-22:33

Nonstop3h 08m

R4 953

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Sat 5/12

11:00-18:40

2 stops9h 40m

Denver Intl

Tue 8/12

8:30-16:30

1 stop6h 00m

R4 986

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Sat 5/12

8:00-15:25

2 stops9h 25m

Denver Intl

Tue 8/12

8:10-18:10

2 stops8h 00m

R5 067

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Tue 10/11

15:55-22:40

2 stops8h 45m

Denver Intl

Wed 11/11

6:30-22:50

1 stop14h 20m

R5 083

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Wed 7/10

10:46-16:22

1 stop7h 36m

Denver Intl

Sat 10/10

17:31-22:43

Nonstop3h 12m

R5 116

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Tue 20/10

8:45-10:22

Nonstop3h 37m

Denver Intl

Tue 27/10

17:25-22:33

Nonstop3h 08m

R5 149

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Buffalo to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Buffalo and Denver?

Prices are currently typical for flights on this route.

Typical prices usually range from R4 611 to R7 707.
The lowest price recently found on this route was R4 741.

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Buffalo is in October. Flight prices, which tend to average around R5 996, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in October, then you should wait until November to fly from Buffalo, when ticket prices are also cheap, with an average price of R6 094.

How far in advance should I book a flight from Buffalo to Denver?

You are more likely to see cheaper flights to Denver from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around R6 834 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Buffalo for as low as R6 126 on momondo.

How have Buffalo to Denver flight prices changed over time?

As of September 2026, prices for Buffalo to Denver flights are approximately 90% more expensive when compared to flights at the same time last year.

When to book flights from Buffalo to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Buffalo to Denver (BUF to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Denver

Best price found	R2 297
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Buffalo in the past 72 hours is R2 297. The best return flight deal from Buffalo to Denver found on momondo in the last 72 hours is R4 741.

Direct flights go from Buffalo to Denver every day.

There is 1 airport in Denver. From Buffalo there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Buffalo to Denver

How far is Buffalo to Denver Intl by plane?
Buffalo and Denver Intl are 2197,7 km apart from one another.
When did momondo last update prices for flights from Buffalo Airport to Denver Intl Airport?
Prices for flights from Buffalo Airport to Denver Intl Airport are updated daily.
How old do you have to be to fly from Buffalo Airport to Denver Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buffalo Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Buffalo to Denver?
Based on momondo bookings for flights between Buffalo and Denver, the leading plane model is Boeing 737-800, making up 38,94% of the total bookings. Other popular models include Boeing 737 MAX 8 with 20,04%, Boeing 737-800 Passenger/BBJ2 (winglets) with 14,93%, and Boeing 737 with 6,43%.

Estes Park

Black Hawk

Manitou Springs

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Denver?

It is quick and easy to find Buffalo to Denver flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Denver that suits you.

Can I find flights from Buffalo to Denver with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Buffalo to Denver flights to just show those with flexible booking policies.

How can momondo help me find flights from Buffalo to Denver?

momondo helps you find the best flight between Buffalo and Denver by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Buffalo to Denver right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Denver, momondo offers a useful price alert feature which will track prices for flights to Denver from Buffalo and alert you when they change.