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Cheap flights from Buffalo to Denver from $87

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 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buffalo to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:13 pm - 10:33 pmBUF  Buffalo-DEN Denver Intl
11h 20m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
11:48 pm - 6:01 pmDEN  Denver Intl-BUF Buffalo
16h 13m2 stops Atlanta Hartsfield-Jackson Orlando
$250Frontier
Sat, Oct 17 - Mon, Oct 19
Frontier Logo
1:13 pm - 9:31 amBUF  Buffalo-DEN Denver Intl
22h 18m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
11:48 pm - 12:18 pmDEN  Denver Intl-BUF Buffalo
10h 30m1 stop Atlanta Hartsfield-Jackson
$251Frontier
Fri, Oct 16 - Sun, Oct 18
United Airlines Logo
8:50 am - 10:35 amBUF  Buffalo-DEN Denver Intl
3h 45mnonstop
United Airlines Logo
5:30 pm - 10:38 pmDEN  Denver Intl-BUF Buffalo
3h 08mnonstop
$258United Airlines
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
8:55 am - 10:32 amBUF  Buffalo-DEN Denver Intl
3h 37mnonstop
United Airlines Logo
5:25 pm - 10:37 pmDEN  Denver Intl-BUF Buffalo
3h 12mnonstop
$258United Airlines
Tue, Sep 8 - Tue, Sep 15
Delta Logo
12:02 pm - 5:21 pmBUF  Buffalo-DEN Denver Intl
7h 19m1 stop Detroit Metropolitan Wayne County
Delta Logo
12:15 pm - 12:12 amDEN  Denver Intl-BUF Buffalo
9h 57m1 stop New York John F Kennedy Intl
$299Delta
Tue, Sep 15 - Tue, Sep 22
American Airlines Logo
7:15 am - 12:27 pmBUF  Buffalo-DEN Denver Intl
7h 12m1 stop Dallas/Fort Worth
American Airlines Logo
6:26 am - 3:57 pmDEN  Denver Intl-BUF Buffalo
7h 31m1 stop Dallas/Fort Worth
$299American Airlines
Wed, Sep 16 - Wed, Sep 30
American Airlines Logo
4:40 pm - 11:47 pmBUF  Buffalo-DEN Denver Intl
9h 07m1 stop Dallas/Fort Worth
American Airlines Logo
1:12 pm - 10:53 pmDEN  Denver Intl-BUF Buffalo
7h 41m1 stop Dallas/Fort Worth
$299American Airlines
Mon, Nov 9 - Thu, Nov 12
Southwest Logo
4:30 pm - 11:45 pmBUF  Buffalo-DEN Denver Intl
9h 15m2 stops Tampa Dallas Love Field
Southwest Logo
10:30 am - 7:35 pmDEN  Denver Intl-BUF Buffalo
7h 05m2 stops Birmingham Baltimore/Washington
$309Southwest
Thu, Oct 29 - Mon, Nov 2
Southwest Logo
9:40 am - 6:50 pmBUF  Buffalo-DEN Denver Intl
11h 10m2 stops Baltimore/Washington Fort Myers SW Florida Intl
Southwest Logo
11:55 pm - 11:50 amDEN  Denver Intl-BUF Buffalo
9h 55m1 stop Orlando
$347Southwest
Fri, Oct 2 - Mon, Oct 5
Delta Logo
6:00 am - 9:41 amBUF  Buffalo-DEN Denver Intl
5h 41m1 stop Detroit Metropolitan Wayne County
Delta Logo
7:00 am - 5:18 pmDEN  Denver Intl-BUF Buffalo
8h 18m1 stop New York LaGuardia
$467Delta
Thu, Dec 17 - Tue, Dec 22

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Frontier flights from Buffalo to Denver

Our best Frontier deals on Buffalo to Denver flight tickets
Frontier
Oct 17
BUF1:13 pmBuffalo
11h 20m
1 stop
DEN10:33 pmDenver Intl
Oct 19
DEN11:48 pmDenver Intl
16h 13m
2 stops
BUF6:01 pmBuffalo
$250
Frontier
Oct 16
BUF1:13 pmBuffalo
22h 18m
1 stop
DEN9:31 amDenver Intl
Oct 18
DEN11:48 pmDenver Intl
10h 30m
1 stop
BUF12:18 pmBuffalo
$251
Frontier
Oct 29
BUF1:13 pmBuffalo
11h 20m
1 stop
DEN10:33 pmDenver Intl
Nov 4
DEN11:59 pmDenver Intl
10h 19m
1 stop
BUF12:18 pmBuffalo
$252

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 11, 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 Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Sat 10/17

1:13 pm-10:33 pm

1 stop11h 20m

Denver Intl

Mon 10/19

11:48 pm-6:01 pm

2 stops16h 13m

$250

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Fri 10/16

1:13 pm-9:31 am

1 stop22h 18m

Denver Intl

Sun 10/18

11:48 pm-12:18 pm

1 stop10h 30m

$251

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Thu 11/5

8:50 am-10:35 am

Nonstop3h 45m

Denver Intl

Mon 11/9

5:30 pm-10:38 pm

Nonstop3h 08m

$258
Quickest round-trip

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Tue 9/8

8:55 am-10:32 am

Nonstop3h 37m

Denver Intl

Tue 9/15

5:25 pm-10:37 pm

Nonstop3h 12m

$258

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Tue 9/15

12:02 pm-5:21 pm

1 stop7h 19m

Denver Intl

Tue 9/22

12:15 pm-12:12 am

1 stop9h 57m

$299

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Wed 9/16

7:15 am-12:27 pm

1 stop7h 12m

Denver Intl

Wed 9/30

6:26 am-3:57 pm

1 stop7h 31m

$299

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Mon 11/9

4:40 pm-11:47 pm

1 stop9h 07m

Denver Intl

Thu 11/12

1:12 pm-10:53 pm

1 stop7h 41m

$299

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Thu 10/29

4:30 pm-11:45 pm

2 stops9h 15m

Denver Intl

Mon 11/2

10:30 am-7:35 pm

2 stops7h 05m

$309

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Fri 10/2

9:40 am-6:50 pm

2 stops11h 10m

Denver Intl

Mon 10/5

11:55 pm-11:50 am

1 stop9h 55m

$347

BuffaloDenver

BUF Buffalo - DEN Denver Intl

BUFDEN

Buffalo

Thu 12/17

6:00 am-9:41 am

1 stop5h 41m

Denver Intl

Tue 12/22

7:00 am-5:18 pm

1 stop8h 18m

$467

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?

Prices are currently low for flights on this route.

Typical prices usually range from $265 to $482.
The lowest price recently found on this route was $250.

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 $268, 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 September to fly from Buffalo, when ticket prices are also cheap, with an average price of $330.

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 $400. 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 $527.

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 $235. Flights in the morning are often more expensive with an average ticket price of $481.

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 $393 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 $356 on momondo.

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

There are 4 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.

How have Buffalo to Denver flight prices changed over time?

As of August 2026, prices for Buffalo to Denver flights are approximately 44% 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

$227

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 $227. The best round-trip flight deal from Buffalo to Denver found on momondo in the last 72 hours is $398.
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?

  • 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 $88Free CancellationRating
5.6
2,703 reviews
Search Frontier flights
JetBluePriceFrom $94Free CancellationRating
7.1
3,034 reviews
Search JetBlue flights
American AirlinesPriceFrom $176Free CancellationRating
7.1
11,904 reviews
Search American Airlines flights
United AirlinesPriceFrom $217Free CancellationRating
7.4
10,104 reviews
Search United Airlines flights
DeltaPriceFrom $218Free CancellationRating
7.8
8,505 reviews
Search Delta flights
SouthwestPriceFrom $298Free CancellationRating
8.0
4,220 reviews
Search Southwest flights

  • Southwest Flights From Buffalo to Denver

    Across 3 Southwest flights from Buffalo to Denver this week, the average price was $476, with the best Southwest deals starting from $298 round-trip. 4,218 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 10,102 reviews) operates around 1 flight from Buffalo to Denver in any given week. The average United Airlines airfare for this route is around $436, with deals from around $217 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
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Boulder
Westminster
Longmont
Manitou Springs
Lakewood
Greeley
Keystone
Thornton
Cripple Creek
Centennial
Littleton
Englewood
Frisco
Winter Park
Golden

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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