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Cheap flights from Buffalo to Denver from $41

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 9/5. 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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0 bags

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Find the cheapest flights from Buffalo to Denver

Cheap round-trip flights

Frontier Logo
4:57 pm - 6:38 pmBUF-DEN
3h 41mnonstop
Frontier Logo
10:48 am - 4:02 pmDEN-BUF
3h 14mnonstop
$153Frontier
Find Deal
Fri, Sep 5 - Fri, Sep 12
Frontier Logo
6:59 pm - 11:13 pmBUF-DEN
30h 14m1 stop
Frontier Logo
10:48 am - 4:02 pmDEN-BUF
3h 14mnonstop
$155Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
Frontier Logo
5:24 pm - 7:04 pmBUF-DEN
3h 40mnonstop
Frontier Logo
12:59 am - 11:19 amDEN-BUF
8h 20m1 stop
$157Frontier
Find Deal
Fri, Oct 24 - Sat, Oct 25
Frontier Logo
4:57 pm - 6:38 pmBUF-DEN
3h 41mnonstop
Frontier Logo
11:59 pm - 12:38 pmDEN-BUF
10h 39m1 stop
$158Frontier
Find Deal
Fri, Sep 5 - Sat, Sep 13
Frontier Logo
12:17 pm - 8:47 pmBUF-DEN
10h 30m1 stop
Frontier Logo
9:00 am - 6:14 pmDEN-BUF
7h 14m1 stop
$159Frontier
Find Deal
Fri, Sep 26 - Mon, Oct 6
Frontier Logo
12:17 pm - 8:47 pmBUF-DEN
10h 30m1 stop
Frontier Logo
12:04 am - 6:14 pmDEN-BUF
16h 10m1 stop
$160Frontier
Find Deal
Fri, Sep 26 - Sun, Oct 5
United Airlines Logo
8:25 am - 10:01 amBUF-DEN
3h 36mnonstop
United Airlines Logo
5:38 pm - 10:52 pmDEN-BUF
3h 14mnonstop
$217United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
Delta Logo
4:43 pm - 11:59 pmBUF-DEN
9h 16m1 stop
Delta Logo
11:59 pm - 10:31 amDEN-BUF
8h 32m1 stop
$237Delta
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
6:00 am - 10:36 amBUF-DEN
6h 36m1 stop
American Airlines Logo
7:16 am - 4:50 pmDEN-BUF
7h 34m1 stop
$238American Airlines
Find Deal
Wed, Sep 24 - Wed, Oct 1
American Airlines Logo
8:00 am - 3:21 pmBUF-DEN
9h 21m2 stops
American Airlines Logo
7:22 am - 4:55 pmDEN-BUF
7h 33m2 stops
$247American Airlines
Find Deal
Sat, Nov 1 - Wed, Nov 5

Frontier flights from Buffalo to Denver

Our best Frontier deals on Buffalo to Denver flight tickets
Frontier
Sep 5
BUF4:57 pmBuffalo
3h 41m
DEN6:38 pmDenver Intl
Sep 12
DEN10:48 amDenver Intl
3h 14m
BUF4:02 pmBuffalo
$153
Find similar
Frontier
Oct 3
BUF6:59 pmBuffalo
30h 14m
1 stop
DEN11:13 pmDenver Intl
Oct 5
DEN10:48 amDenver Intl
3h 14m
BUF4:02 pmBuffalo
$155
Find similar
Frontier
Oct 24
BUF5:24 pmBuffalo
3h 40m
DEN7:04 pmDenver Intl
Oct 25
DEN12:59 amDenver Intl
8h 20m
1 stop
BUF11:19 amBuffalo
$157
Find similar

American Airlines flights from Buffalo to Denver

Our best American Airlines deals on Buffalo to Denver flight tickets
American Airlines
Sep 24
BUF6:00 amBuffalo
6h 36m
1 stop
DEN10:36 amDenver Intl
Oct 1
DEN7:16 amDenver Intl
7h 34m
1 stop
BUF4:50 pmBuffalo
$238
Find similar
American Airlines
Nov 1
BUF8:00 amBuffalo
9h 21m
2 stops
DEN3:21 pmDenver Intl
Nov 5
DEN7:22 amDenver Intl
7h 33m
2 stops
BUF4:55 pmBuffalo
$247
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 26, 2025.
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

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 9/5

4:57 pm-6:38 pm

Nonstop3h 41m

Denver Intl

Fri 9/12

10:48 am-4:02 pm

Nonstop3h 14m

$153

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 10/3

6:59 pm-11:13 pm

1 stop30h 14m

Denver Intl

Sun 10/5

10:48 am-4:02 pm

Nonstop3h 14m

$155

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 10/24

5:24 pm-7:04 pm

Nonstop3h 40m

Denver Intl

Sat 10/25

12:59 am-11:19 am

1 stop8h 20m

$157

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 9/5

4:57 pm-6:38 pm

Nonstop3h 41m

Denver Intl

Sat 9/13

11:59 pm-12:38 pm

1 stop10h 39m

$158

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 9/26

12:17 pm-8:47 pm

1 stop10h 30m

Denver Intl

Mon 10/6

9:00 am-6:14 pm

1 stop7h 14m

$159

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 9/26

12:17 pm-8:47 pm

1 stop10h 30m

Denver Intl

Sun 10/5

12:04 am-6:14 pm

1 stop16h 10m

$160

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 10/24

8:25 am-10:01 am

Nonstop3h 36m

Denver Intl

Sun 10/26

5:38 pm-10:52 pm

Nonstop3h 14m

$217

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Thu 10/2

4:43 pm-11:59 pm

1 stop9h 16m

Denver Intl

Mon 10/6

11:59 pm-10:31 am

1 stop8h 32m

$237

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 9/24

6:00 am-10:36 am

1 stop6h 36m

Denver Intl

Wed 10/1

7:16 am-4:50 pm

1 stop7h 34m

$238

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Sat 11/1

8:00 am-3:21 pm

2 stops9h 21m

Denver Intl

Wed 11/5

7:22 am-4:55 pm

2 stops7h 33m

$247

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

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

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 August. Flight prices, which tend to average around $271, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in August, then you should wait until September to fly from Buffalo, when ticket prices are also cheap, with an average price of $276.

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 $319. 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 $479.

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 $266. Flights in the morning are often more expensive with an average ticket price of $448.

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 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 $330 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 $237 on momondo.

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

There are 4 cabin classes available to choose from on Buffalo to Denver Intl 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?

No. A direct flight is the cheapest option for a flight between Buffalo to Denver.

How have Buffalo to Denver flight prices changed over time?

As of August 2025, prices for Buffalo to Denver flights are approximately 17% cheaper 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

$153

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 $153. The best round-trip flight deal from Buffalo to Denver found on momondo in the last 72 hours is $229.
The fastest flight from Buffalo to Denver takes 3h 25m
Direct flights go from Buffalo to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • 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 36m 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?

  • 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?

  • What is the most popular airline 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
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $105Free CancellationRating
5.8
3,200 reviews
Search Frontier flights
JetBluePriceFrom $188Free CancellationRating
7.2
2,918 reviews
Search JetBlue flights
United AirlinesPriceFrom $211Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights
American AirlinesPriceFrom $216Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $220Free CancellationRating
7.9
7,979 reviews
Search Delta flights
SouthwestPriceFrom $275Free CancellationRating
8.0
4,243 reviews
Search Southwest flights

  • Southwest Flights From Buffalo to Denver

    Across 5 Southwest flights from Buffalo to Denver this week, the average price was $428, with the best Southwest deals starting from $275 round-trip. 4,242 users have rated Southwest on momondo, with an average score of 8.0/10.

  • United Airlines Flights From Buffalo to Denver

    United Airlines (7.4/10 from 8,943 reviews) operates around 7 flights from Buffalo to Denver in any given week. The average United Airlines airfare for this route is around $326, with deals from around $211 rare but found on momondo. Referenced prices are for round-trip Buffalo to Denver flight searches in the last 72 hours.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Estes Park
Breckenridge
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Longmont
Boulder
Manitou Springs
Lakewood
Greeley
Westminster
Thornton
Winter Park
Grand Lake
Copper Mountain
Frisco
Silverthorne
Centennial

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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