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

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

Which layover airport has the shortest travel time from Buffalo to Denver?

Flights connecting via Chicago (MDW) have the shortest average one-way travel time: 5h 39m.

Which layover airport offers the lowest fares from Buffalo to Denver?

Flights via Washington, D.C. (IAD) offer the lowest average round-trip price of $265.

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

As of May 2026, there are 6 flights per week flying from Buffalo to Denver. The most common day of the week flights depart is Sat, with 33% of flights taking off on this day.

Which airport is the most popular layover for flights between Buffalo and Denver?

Chicago (ORD) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Denver?

United Airlines, Southwest and Frontier are the top three most popular airlines that fly to Denver from Buffalo according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 5 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Buffalo to Denver?

Chicago (MDW) has the shortest average layover time for this route: 0h 50m.

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 refreshed on a daily basis.

How many operators does momondo search for flights from Buffalo Airport to Denver Intl Airport?

The number of operators available for flights from Buffalo Airport to Denver Intl Airport is 5 as of May 2026.

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 travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$88 Cheap Flights from Buffalo to Denver in 2026

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9:02 pm - 8:07 am

BUF

DEN

13h 05m

1 stop

11:46 pm - 1:53 pm

DEN

BUF

12h 07m

1 stop

$230Frontier

Tue, Aug 4 - Tue, Aug 11

11:50 am - 9:03 am

BUF

DEN

23h 13m

1 stop

10:11 am - 10:40 am

DEN

BUF

22h 29m

2 stops

$239Frontier

Tue, Aug 11 - Mon, Aug 17

2:49 pm - 10:24 pm

BUF

DEN

9h 35m

1 stop

11:54 pm - 1:54 pm

DEN

BUF

12h 00m

1 stop

$240Frontier

Wed, Jun 3 - Sun, Jun 7

2:50 pm - 10:05 pm

BUF

DEN

9h 15m

1 stop

11:46 pm - 10:39 am

DEN

BUF

8h 53m

1 stop

$243Frontier

Wed, Jul 22 - Sat, Jul 25

7:52 pm - 8:24 am

BUF

DEN

14h 32m

1 stop

6:00 am - 7:12 pm

DEN

BUF

11h 12m

1 stop

$244Frontier

Sat, Jun 6 - Tue, Jun 9

11:36 am - 10:24 pm

BUF

DEN

12h 48m

1 stop

11:54 pm - 10:41 am

DEN

BUF

8h 47m

1 stop

$245Frontier

Tue, Jun 2 - Wed, Jun 3

2:49 pm - 10:24 pm

BUF

DEN

9h 35m

1 stop

7:40 am - 11:10 am

DEN

BUF

25h 30m

2 stops

$247Frontier

Wed, Jun 3 - Mon, Jun 8

11:35 am - 10:05 pm

BUF

DEN

12h 30m

1 stop

6:03 am - 8:16 pm

DEN

BUF

12h 13m

1 stop

$249Frontier

Thu, Jul 23 - Tue, Jul 28

7:57 pm - 7:33 am

BUF

DEN

13h 36m

1 stop

11:46 pm - 1:53 pm

DEN

BUF

12h 07m

1 stop

$250Frontier

Wed, Jul 8 - Sun, Jul 12

7:52 pm - 3:12 pm

BUF

DEN

21h 20m

1 stop

9:15 am - 6:59 pm

DEN

BUF

7h 44m

1 stop

$255Frontier

Tue, Jun 2 - Thu, Jun 4

Frontier flights from Buffalo to Denver

Our best Frontier deals on Buffalo to Denver flight tickets

Frontier

Aug 4

BUF9:02 pmBuffalo

13h 05m

1 stop

DEN8:07 amDenver Intl

Aug 11

DEN11:46 pmDenver Intl

12h 07m

1 stop

BUF1:53 pmBuffalo

$230

Frontier

Aug 21

BUF2:50 pmBuffalo

20h 08m

1 stop

DEN8:58 amDenver Intl

Aug 25

DEN11:59 pmDenver Intl

32h 41m

2 stops

BUF10:40 amBuffalo

$236

Frontier

Aug 11

BUF11:50 amBuffalo

23h 13m

1 stop

DEN9:03 amDenver Intl

Aug 17

DEN10:11 amDenver Intl

22h 29m

2 stops

BUF10:40 amBuffalo

$239

JetBlue flights from Buffalo to Denver

Our best JetBlue deals on Buffalo to Denver flight tickets

JetBlue

May 31

BUF6:05 amBuffalo

8h 03m

1 stop

DEN12:08 pmDenver Intl

Jun 6

DEN11:41 pmDenver Intl

7h 17m

1 stop

BUF8:58 amBuffalo

$443

JetBlue

May 31

BUF6:05 amBuffalo

8h 03m

1 stop

DEN12:08 pmDenver Intl

Jun 5

DEN10:34 pmDenver Intl

9h 26m

1 stop

BUF10:00 amBuffalo

$458

JetBlue

Jun 1

BUF6:05 amBuffalo

8h 03m

1 stop

DEN12:08 pmDenver Intl

Jun 1

DEN11:41 pmDenver Intl

7h 17m

1 stop

BUF8:58 amBuffalo

$463

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Tue 8/4

9:02 pm-8:07 am

1 stop13h 05m

Denver Intl

Tue 8/11

11:46 pm-1:53 pm

1 stop12h 07m

$230

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Tue 8/11

11:50 am-9:03 am

1 stop23h 13m

Denver Intl

Mon 8/17

10:11 am-10:40 am

2 stops22h 29m

$239

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 6/3

2:49 pm-10:24 pm

1 stop9h 35m

Denver Intl

Sun 6/7

11:54 pm-1:54 pm

1 stop12h 00m

$240

Quickest round-trip

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 7/22

2:50 pm-10:05 pm

1 stop9h 15m

Denver Intl

Sat 7/25

11:46 pm-10:39 am

1 stop8h 53m

$243

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Sat 6/6

7:52 pm-8:24 am

1 stop14h 32m

Denver Intl

Tue 6/9

6:00 am-7:12 pm

1 stop11h 12m

$244

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Tue 6/2

11:36 am-10:24 pm

1 stop12h 48m

Denver Intl

Wed 6/3

11:54 pm-10:41 am

1 stop8h 47m

$245

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 6/3

2:49 pm-10:24 pm

1 stop9h 35m

Denver Intl

Mon 6/8

7:40 am-11:10 am

2 stops25h 30m

$247

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Thu 7/23

11:35 am-10:05 pm

1 stop12h 30m

Denver Intl

Tue 7/28

6:03 am-8:16 pm

1 stop12h 13m

$249

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 7/8

7:57 pm-7:33 am

1 stop13h 36m

Denver Intl

Sun 7/12

11:46 pm-1:53 pm

1 stop12h 07m

$250

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Tue 6/2

7:52 pm-3:12 pm

1 stop21h 20m

Denver Intl

Thu 6/4

9:15 am-6:59 pm

1 stop7h 44m

$255

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

Layovers

Other information

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

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 $261, 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 August to fly from Buffalo, when ticket prices are also cheap, with an average price of $266.

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

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $306. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $507.

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

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $226. Flights in the evening are often more expensive with an average ticket price of $466.

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 $366 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 $248 on momondo.

Can stopping save me money on Buffalo to Denver flights?

You could potentially save up to 28% 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 May 2026, prices for Buffalo to Denver flights are approximately 45% 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	$255
Fastest flight time	3h 25m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Buffalo in the past 72 hours is $255. The best round-trip flight deal from Buffalo to Denver found on momondo in the last 72 hours is $464.

The fastest flight from Buffalo to Denver takes 3h 25m

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?
The straight-line distance from Buffalo to Denver Intl is 1365.6 mi. Typically, this will take 3h 25m by plane in normal conditions.
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 refreshed on a daily basis.
How many operators does momondo search for flights from Buffalo Airport to Denver Intl Airport?
The number of operators available for flights from Buffalo Airport to Denver Intl Airport is 5 as of May 2026.
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 travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Buffalo to Denver?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Buffalo to Denver is Boeing 737-800 (44.18% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (20.44%), Boeing 737 MAX 8 (11.43%), and Boeing 737 MAX 9 (6.37%).
What is the most popular airline from Buffalo to Denver?
Based on momondo bookings for flights between Buffalo and Denver, the leading airline is United Airlines, making up 46% of the total bookings. Other popular airlines include Frontier with 24%, Southwest with 17%, and American Airlines with 7%.

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 $98	Free Cancellation	Rating 5.6 2,946 reviews	Search Frontier flights
American Airlines	PriceFrom $190	Free Cancellation	Rating 7.1 11,648 reviews	Search American Airlines flights
United Airlines	PriceFrom $210	Free Cancellation	Rating 7.4 9,737 reviews	Search United Airlines flights
Delta	PriceFrom $218	Free Cancellation	Rating 7.9 8,447 reviews	Search Delta flights
Southwest	PriceFrom $252	Free Cancellation	Rating 7.9 4,287 reviews	Search Southwest flights

Southwest Flights From Buffalo to Denver
Across 1 Southwest flight from Buffalo to Denver this week, the average price was $435, with the best Southwest deals starting from $252 round-trip. 4,287 users have rated Southwest on momondo, with an average score of 7.9/10.
United Airlines Flights From Buffalo to Denver
United Airlines (7.4/10 from 9,737 reviews) operates around 5 flights from Buffalo to Denver in any given week. The average United Airlines airfare for this route is around $411, with deals from around $210 rare but found on momondo. Referenced prices are for round-trip Buffalo to Denver flight searches in the last 72 hours.

Breckenridge

Estes Park

Black Hawk

Aurora

Fort Collins

Manitou Springs

Boulder

Longmont

Greeley

Keystone

Lakewood

Westminster

Cripple Creek

Thornton

Frisco

Centennial

Englewood

Winter Park

Grand Lake

Copper Mountain

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?

Yes. momondo can track prices for Buffalo to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Airports servicing Colorado

Alamosa Airport

Aspen Pitkin County Airport

Cortez Montezuma County Airport

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Durango La Plata County Airport

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Gunnison Airport

Hayden Yampa Valley Airport

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Cheap flights from Buffalo to Denver from $88

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 8/11. 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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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?

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?

What airlines fly to Denver?

Which airport is the most popular layover for flights between Buffalo and Denver?

Which layover airport offers the lowest fares from Buffalo to Denver?

Which layover airport has the shortest travel time from Buffalo to Denver?

Which layover airport has the shortest connection time from Buffalo to Denver?

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

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

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

Southwest Flights From Buffalo to Denver

United Airlines Flights From Buffalo to Denver

Traveling 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

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Find better results for your trip to the United States

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

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

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