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

1 flights are operational daily from Buffalo to Denver as of September 2026. The most popular departure time for this route is 8:00a.m., with 91% of flights per day taking off at noon.

Which airlines fly to Denver?

Frontier, Southwest and United Airlines are the top three most popular airlines that fly to Denver from Buffalo according to our data. Frontier is the first choice among our users, with 61% of people opting to fly with this airline when travelling to Denver. Keep in mind that there are 3 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

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

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

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

10 flights are operational weekly from Buffalo to Denver as of September 2026. The most popular departure day for this route is Mon, with 20% of flights per week 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 many operators does momondo search for flights from Buffalo Airport to Denver Intl Airport?

As of September 2026, there are 3 operators available to choose from for flights from Buffalo Airport to Denver Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Denver Intl Airport.

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

The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 229 Cheap Flights from Buffalo to Denver in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buffalo to Denver

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:44 p.m. - 8:06 a.m.BUF Buffalo-DEN Denver Intl

20h 22m1 stop Atlanta Hartsfield-Jackson

6:57 p.m. - 12:59 p.m.DEN Denver Intl-BUF Buffalo

16h 02m1 stop Atlanta Hartsfield-Jackson

C$ 379Frontier

Mon, 12 Oct - Thu, 15 Oct

1:44 p.m. - 8:06 a.m.BUF Buffalo-DEN Denver Intl

20h 22m1 stop Atlanta Hartsfield-Jackson

4:12 p.m. - 12:59 p.m.DEN Denver Intl-BUF Buffalo

18h 47m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson

C$ 383Frontier

Mon, 12 Oct - Thu, 15 Oct

6:51 p.m. - 8:07 a.m.BUF Buffalo-DEN Denver Intl

15h 16m1 stop Orlando

10:58 a.m. - 11:58 a.m.DEN Denver Intl-BUF Buffalo

23h 00m1 stop Raleigh-Durham

C$ 409Frontier

Tue, 13 Oct - Sat, 17 Oct

2:40 p.m. - 4:30 p.m.BUF Buffalo-DEN Denver Intl

3h 50mdirect

3:45 p.m. - 8:45 p.m.DEN Denver Intl-BUF Buffalo

3h 00mdirect

C$ 521Southwest

Mon, 7 Dec - Mon, 14 Dec

4:00 p.m. - 5:30 p.m.BUF Buffalo-DEN Denver Intl

3h 30mdirect

11:05 a.m. - 4:15 p.m.DEN Denver Intl-BUF Buffalo

3h 10mdirect

C$ 521Southwest

Wed, 21 Oct - Sat, 24 Oct

8:45 a.m. - 10:22 a.m.BUF Buffalo-DEN Denver Intl

3h 37mdirect

5:31 p.m. - 10:43 p.m.DEN Denver Intl-BUF Buffalo

3h 12mdirect

C$ 521United Airlines

Thu, 1 Oct - Mon, 5 Oct

8:17 a.m. - 10:17 a.m.BUF Buffalo-DEN Denver Intl

4h 00mdirect

5:45 p.m. - 11:05 p.m.DEN Denver Intl-BUF Buffalo

3h 20mdirect

C$ 521United Airlines

Thu, 3 Dec - Mon, 7 Dec

8:45 a.m. - 10:22 a.m.BUF Buffalo-DEN Denver Intl

3h 37mdirect

5:31 p.m. - 10:43 p.m.DEN Denver Intl-BUF Buffalo

3h 12mdirect

C$ 521United Airlines

Sat, 26 Sep - Tue, 29 Sep

7:13 a.m. - 2:27 p.m.BUF Buffalo-DEN Denver Intl

9h 14m1 stop Charlotte Douglas

7:28 a.m. - 3:58 p.m.DEN Denver Intl-BUF Buffalo

6h 30m1 stop Dallas/Fort Worth

C$ 549American Airlines

Tue, 13 Oct - Sat, 17 Oct

3:58 p.m. - 9:13 p.m.BUF Buffalo-DEN Denver Intl

7h 15m1 stop Atlanta Hartsfield-Jackson

6:35 a.m. - 3:11 p.m.DEN Denver Intl-BUF Buffalo

6h 36m1 stop New York John F Kennedy Intl

C$ 549Delta

Wed, 30 Sep - Wed, 7 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

1:40 p.m. - 9:03 p.m.BUF Buffalo-DEN Denver Intl

9h 23m1 stop Atlanta Hartsfield-Jackson

11:46 a.m. - 11:48 a.m.DEN Denver Intl-BUF Buffalo

22h 02m1 stop Raleigh-Durham

C$ 471Frontier

Wed, 9 Sep - Wed, 16 Sep

6:54 p.m. - 3:18 p.m.BUF Buffalo-DEN Denver Intl

22h 24m1 stop Orlando

11:59 p.m. - 10:29 a.m.DEN Denver Intl-BUF Buffalo

8h 30m1 stop Atlanta Hartsfield-Jackson

C$ 504Frontier

Sat, 5 Sep - Sun, 6 Sep

1:40 p.m. - 9:03 p.m.BUF Buffalo-DEN Denver Intl

9h 23m1 stop Atlanta Hartsfield-Jackson

10:50 p.m. - 12:55 p.m.DEN Denver Intl-BUF Buffalo

36h 05m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson

C$ 612Frontier

Wed, 9 Sep - Wed, 16 Sep

4:05 p.m. - 5:30 p.m.BUF Buffalo-DEN Denver Intl

3h 25mdirect

6:30 a.m. - 3:15 p.m.DEN Denver Intl-BUF Buffalo

6h 45m1 stop Chicago Midway

C$ 1,004Southwest

Wed, 9 Sep - Tue, 22 Sep

6:00 a.m. - 11:40 a.m.BUF Buffalo-DEN Denver Intl

7h 40m2 stops Baltimore/Washington Chicago Midway

11:15 a.m. - 8:40 p.m.DEN Denver Intl-BUF Buffalo

7h 25m2 stops Memphis Chicago Midway

C$ 1,032Southwest

Wed, 9 Sep - Tue, 22 Sep

4:05 p.m. - 5:30 p.m.BUF Buffalo-DEN Denver Intl

3h 25mdirect

1:40 p.m. - 6:50 p.m.DEN Denver Intl-BUF Buffalo

3h 10mdirect

C$ 1,109Southwest

Wed, 9 Sep - Tue, 22 Sep

8:55 a.m. - 10:32 a.m.BUF Buffalo-DEN Denver Intl

3h 37mdirect

5:30 a.m. - 1:16 p.m.DEN Denver Intl-BUF Buffalo

5h 46m1 stop Chicago O'Hare Intl

C$ 1,213United Airlines

Wed, 9 Sep - Wed, 16 Sep

6:55 a.m. - 12:45 p.m.BUF Buffalo-DEN Denver Intl

7h 50m1 stop Chicago O'Hare Intl

5:25 p.m. - 10:37 p.m.DEN Denver Intl-BUF Buffalo

3h 12mdirect

C$ 1,235United Airlines

Sat, 5 Sep - Fri, 18 Sep

7:55 a.m. - 3:40 p.m.BUF Buffalo-DEN Denver Intl

9h 45m1 stop Chicago Midway

12:00 a.m. - 11:55 a.m.DEN Denver Intl-BUF Buffalo

9h 55m1 stop Orlando

C$ 1,532JetBlue

Sat, 5 Sep - Sun, 6 Sep

6:50 a.m. - 8:15 a.m.BUF Buffalo-DEN Denver Intl

3h 25mdirect

12:00 a.m. - 11:55 a.m.DEN Denver Intl-BUF Buffalo

9h 55m1 stop Orlando

C$ 1,585JetBlue

Sat, 5 Sep - Sun, 6 Sep

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Frontier flights from Buffalo to Denver

Our best Frontier deals on Buffalo to Denver flight tickets

Frontier

12 Oct

BUF1:44 p.m.Buffalo

20h 22m

1 stop

DEN8:06 a.m.Denver Intl

15 Oct

DEN6:57 p.m.Denver Intl

16h 02m

1 stop

BUF12:59 p.m.Buffalo

C$ 379

Frontier

12 Oct

BUF1:44 p.m.Buffalo

20h 22m

1 stop

DEN8:06 a.m.Denver Intl

15 Oct

DEN4:12 p.m.Denver Intl

18h 47m

2 stops

BUF12:59 p.m.Buffalo

C$ 383

Frontier

13 Oct

BUF6:51 p.m.Buffalo

15h 16m

1 stop

DEN8:07 a.m.Denver Intl

17 Oct

DEN10:58 a.m.Denver Intl

23h 00m

1 stop

BUF11:58 a.m.Buffalo

C$ 409

Delta flights from Buffalo to Denver

Our best Delta deals on Buffalo to Denver flight tickets

Delta

30 Sep

BUF3:58 p.m.Buffalo

7h 15m

1 stop

DEN9:13 p.m.Denver Intl

7 Oct

DEN6:35 a.m.Denver Intl

6h 36m

1 stop

BUF3:11 p.m.Buffalo

C$ 549

Delta

17 Sep

BUF12:02 p.m.Buffalo

7h 19m

1 stop

DEN5:21 p.m.Denver Intl

21 Sep

DEN6:35 a.m.Denver Intl

6h 30m

1 stop

BUF3:05 p.m.Buffalo

C$ 825

Delta

17 Sep

BUF6:00 a.m.Buffalo

13h 21m

2 stops

DEN5:21 p.m.Denver Intl

21 Sep

DEN6:35 a.m.Denver Intl

6h 30m

1 stop

BUF3:05 p.m.Buffalo

C$ 879

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Mon 12/10

1:44 p.m.-8:06 a.m.

1 stop20h 22m

Denver Intl

Thu 15/10

6:57 p.m.-12:59 p.m.

1 stop16h 02m

C$ 379

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Mon 12/10

1:44 p.m.-8:06 a.m.

1 stop20h 22m

Denver Intl

Thu 15/10

4:12 p.m.-12:59 p.m.

2 stops18h 47m

C$ 383

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Tue 13/10

6:51 p.m.-8:07 a.m.

1 stop15h 16m

Denver Intl

Sat 17/10

10:58 a.m.-11:58 a.m.

1 stop23h 00m

C$ 409

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Mon 7/12

2:40 p.m.-4:30 p.m.

Nonstop3h 50m

Denver Intl

Mon 14/12

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

Nonstop3h 00m

C$ 521

Quickest round-trip

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Wed 21/10

4:00 p.m.-5:30 p.m.

Nonstop3h 30m

Denver Intl

Sat 24/10

11:05 a.m.-4:15 p.m.

Nonstop3h 10m

C$ 521

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Thu 1/10

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

Nonstop3h 37m

Denver Intl

Mon 5/10

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

Nonstop3h 12m

C$ 521

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Thu 3/12

8:17 a.m.-10:17 a.m.

Nonstop4h 00m

Denver Intl

Mon 7/12

5:45 p.m.-11:05 p.m.

Nonstop3h 20m

C$ 521

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Sat 26/9

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

Nonstop3h 37m

Denver Intl

Tue 29/9

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

Nonstop3h 12m

C$ 521

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Tue 13/10

7:13 a.m.-2:27 p.m.

1 stop9h 14m

Denver Intl

Sat 17/10

7:28 a.m.-3:58 p.m.

1 stop6h 30m

C$ 549

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Wed 30/9

3:58 p.m.-9:13 p.m.

1 stop7h 15m

Denver Intl

Wed 7/10

6:35 a.m.-3:11 p.m.

1 stop6h 36m

C$ 549

Flights are sorted by cheapest round-trip 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 C$ 332 to C$ 619.
The lowest price recently found on this route was C$ 379.

What is the cheapest month to fly to Denver?

In general, October is the cheapest month to fly from Buffalo to Denver. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 438. If you aren’t able to travel during the month of October, then book flights to Denver from Buffalo during September instead. Flights to Denver in September, while not as cheap as those in October, still average around C$ 450.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart from Buffalo to Denver is on a Monday. Travellers who choose to depart for Denver on a Monday will often find tickets for as low as C$ 371. On the other hand, Tuesday is the most expensive day to depart from Buffalo because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 790.

What is the cheapest time of day to depart on your flight to Denver?

Our most recent data shows that the best time of day to fly to Denver is in the afternoon. Flights from Buffalo to Denver during this time can be as low as C$ 346. Try not to purchase tickets in the morning because they tend to be around C$ 649. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Buffalo to Denver Intl flight route?

Fly from Buffalo to Denver Intl for the best Buffalo - Denver Intl flight prices

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 C$ 565 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Buffalo for as low as C$ 520 on momondo.

What cabin class options are available on Buffalo to Denver flights?

There are 2 cabin classes available to choose from on Buffalo to Denver flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Buffalo to Denver flights?

You could potentially save up to 42% on your flight if you consider stops on a Buffalo to Denver flight.

How have Buffalo to Denver flight prices changed over time?

As of September 2026, prices for Buffalo to Denver flights are approximately 91% 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 round-trip 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	C$ 229
Fastest flight time	3h 30m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Buffalo in the past 72 hours is C$ 229. The best round-trip flight deal from Buffalo to Denver found on momondo in the last 72 hours is C$ 379.

The fastest flight from Buffalo to Denver takes 3h 30m

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?
A flight from Buffalo to Denver Intl will travel around 2197.7 km. Flights usually cover this in 3h 30m, depending on flying conditions and air traffic around both airports.
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 many operators does momondo search for flights from Buffalo Airport to Denver Intl Airport?
As of September 2026, there are 3 operators available to choose from for flights from Buffalo Airport to Denver Intl Airport.
How old do you have to be to fly from Buffalo Airport to Denver Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
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 35.82% of the total bookings. Other popular models include Boeing 737 MAX 8 with 21.27%, Boeing 737-800 Passenger/BBJ2 (winglets) with 13.62%, and Boeing 737 with 8.02%.
What is the most popular airline from Buffalo to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Buffalo to Denver is Frontier (61% of total bookings). The next most popular airlines are Southwest (22%) and United Airlines (17%).

Best airlines flying from Buffalo to Denver

Compare and see reviews for airlines that fly from Buffalo to Denver with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom C$ 231	Free Cancellation	Rating 5.6 2,622 reviews	Search Frontier flights
Southwest	PriceFrom C$ 369	Free Cancellation	Rating 8.0 4,200 reviews	Search Southwest flights
United Airlines	PriceFrom C$ 385	Free Cancellation	Rating 7.4 10,171 reviews	Search United Airlines flights

Southwest Flights From Buffalo to Denver
Southwest flight deals from Buffalo to Denver start from C$ 369 round-trip. Over the 3 Southwest flights for this route in a normal week, average airfare is usually C$ 723 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Buffalo to Denver
C$ 385 is the best United Airlines flight deal from Buffalo to Denver found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to C$ 642, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 10,172 user reviews) flies into Denver from Buffalo 7 times in an average week so prices can vary.

Keystone

Winter Park

Estes Park

Boulder

Silverthorne

Lakewood

Breckenridge

Wheat Ridge

Englewood

Black Hawk

Glendale

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Denver from Buffalo.

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

Flights from Buffalo to Denver with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Denver from Buffalo. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Denver from Buffalo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Denver trip

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Hayden Yampa Valley Airport

Montrose County Airport

Cheap flights from Buffalo to Denver from C$ 229

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to Denver departing on 19/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Buffalo to Denver

Our best Frontier deals on Buffalo to Denver flight tickets

Delta flights from Buffalo to Denver

Our best Delta deals on Buffalo to Denver flight tickets

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See travel insights to Denver from

How to get the cheapest flight ticket from Buffalo to Denver

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

What is the cheapest month to fly to Denver?

What is the cheapest day to depart on your flight to Denver?

What is the cheapest time of day to depart on your flight to Denver?

What is the cheapest Buffalo to Denver Intl flight route?

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

What cabin class options are available on Buffalo to Denver flights?

Can stopping save me money on Buffalo to Denver flights?

How have Buffalo to Denver flight prices changed over time?

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

Which airlines fly to Denver?

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

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

When to book flights from Buffalo to Denver

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

Best price found

Fastest flight time

Direct flights

Airports in Denver

Frequently asked questions about flying from Buffalo to Denver

Best airlines flying from Buffalo to Denver

Compare and see reviews for airlines that fly from Buffalo to Denver with momondo

Travelling to a place near Denver?

Why use momondo?

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Colorado

Fly your favourite airline to Denver

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Denver

List of cabin classes available on flights landing in Denver. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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