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$68+ Cheap flights from Buffalo to Denver (BUF - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Buffalo to Denver Intl are usually found in August or September, booked 65 days in advance, depart on a Friday or Wednesday and return on a Friday

Find flight deals from Buffalo to Denver

Cheapest flights from Buffalo to Denver
Explore the most affordable flight options available from Buffalo to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This CheapOair deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:29 pmBUF - DEN
1 stop8h 57mFrontier
Wed 11/1910:45 amDEN - BUF
1 stop24h 21mFrontier
Deal found 10/27$162
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:53 pmBUF - DEN
2 stops37h 10mFrontier
Wed 11/1910:45 amDEN - BUF
1 stop24h 21mFrontier
Deal found 10/26$185
This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:54 pmBUF - DEN
1 stop13h 49mFrontier
Sat 11/812:59 amDEN - BUF
1 stop10h 48mFrontier
Deal found 10/26$194
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:29 pmBUF - DEN
1 stop8h 57mFrontier
Sun 11/1612:59 amDEN - BUF
2 stops18h 09mFrontier
Deal found 10/26$202
This Booking.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1211:30 amBUF - DEN
1 stop12h 08mFrontier
Wed 12/1711:59 pmDEN - BUF
1 stop11h 13mFrontier
Deal found 10/26$203
This CheapOair deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:53 pmBUF - DEN
1 stop27h 23mFrontier
Sun 11/911:10 amDEN - BUF
1 stop6h 59mFrontier
Deal found 10/25$214
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:04 pmBUF - DEN
1 stop8h 22mFrontier
Sat 11/1512:25 pmDEN - BUF
2 stops29h 44mFrontier
Deal found 10/24$217
This CheapOair deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:05 amBUF - DEN
1 stop8h 26mJetBlue
Tue 12/1611:21 pmDEN - BUF
1 stop7h 59mJetBlue
Deal found 10/24$222
This Frontier deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/912:39 pmBUF - DEN
1 stop8h 47mFrontier
Thu 11/1311:10 amDEN - BUF
1 stop6h 59mFrontier
Deal found 10/24$229

Cheap flight deals from Buffalo to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$162
(CheapOair)

One-way from

$68
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$271

Good round-trip deal

$264 or less

Good one-way deal

$131 or less
Provider with most accurate pricing for Buffalo-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Denver Intl flights.
Search Deals
From Buffalo to Denver Intl
Search Deals
One-way flight from Buffalo to Denver Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Buffalo to Denver Intl.
Search Deals
Price to beat on a one-way flight from Buffalo to Denver Intl.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Buffalo to Denver that are best for you.

Fly from

Buffalo

Fly to

Denver

Route

Depart

Return

Price

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 11/7

9:53 pm-6:15 pm

1 stop22h 22m

Denver Intl

Sat 11/8

12:59 am-1:47 pm

1 stop10h 48m

$194

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 11/14

2:42 pm-9:28 pm

1 stop8h 46m

Denver Intl

Sun 11/16

12:59 am-1:37 pm

1 stop10h 38m

$238

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Thu 11/20

2:01 pm-8:46 am

1 stop20h 45m

Denver Intl

Sun 11/23

6:08 pm-4:20 pm

1 stop20h 12m

$246

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 1/21

2:45 pm-10:25 pm

1 stop9h 40m

Denver Intl

Sun 1/25

11:20 pm-9:04 am

1 stop7h 44m

$253

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 11/21

5:43 pm-11:04 pm

1 stop7h 21m

Denver Intl

Sun 11/23

11:35 pm-11:34 am

1 stop9h 59m

$268

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 11/7

9:53 pm-11:16 pm

1 stop27h 23m

Denver Intl

Mon 11/10

11:10 am-9:08 pm

1 stop7h 58m

$281

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 11/14

10:40 am-12:15 pm

Nonstop3h 35m

Denver Intl

Mon 11/17

7:00 am-5:35 pm

1 stop8h 35m

$297

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Sat 11/15

6:12 am-11:31 am

1 stop7h 19m

Denver Intl

Tue 11/18

12:10 pm-10:49 pm

1 stop8h 39m

$307

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Thu 1/22

8:18 pm-3:55 pm

1 stop21h 37m

Denver Intl

Sat 1/24

12:59 am-11:52 am

1 stop8h 53m

$320

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Sat 11/8

6:20 am-10:11 am

1 stop5h 51m

Denver Intl

Tue 11/11

7:05 am-5:19 pm

1 stop8h 14m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
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Compare providers for flights from Buffalo to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Denver in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buffalo-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Buffalo-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buffalo to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Denver

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Denver. Price data was last updated on October 24, 2025.

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Buffalo to Denver?

Currently, June is the cheapest month in which you can book a flight from Buffalo to Denver (average of $118). Flying from Buffalo to Denver in April is currently the most expensive (average of $226). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BUF to DEN?

Find hourly flight availability from Buffalo to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

One of the essential ways to save on airfare from Buffalo to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 50% on airfare.

What is the cheapest day to fly from Buffalo to Denver?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to Denver. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Buffalo to Denver flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated October 27, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Buffalo to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,996 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,997 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,033 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,122 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Buffalo to Denver?

    Booking a flight from Buffalo (BUF) to Denver Intl (DEN) is your only option if you wish to fly from Buffalo to Denver. On a typical day, there is 1 flight from Buffalo to Denver Intl, all of which are around 3h 35m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Buffalo to Denver.

  • How popular is this Buffalo to Denver flight route?

    This flight path from Buffalo to Denver Intl was viewed by 52 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Buffalo to Denver?

    Departing from Buffalo to Denver will take you 9h 40m. There are 1355 mi between Buffalo and Denver. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Buffalo to Denver round-trip?

    According to our current data, Frontier ($99), JetBlue ($188), and Delta ($194) offers the cheapest pricing from Buffalo to Denver. Frontier is 70% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Buffalo to Denver?

    No one likes to see their flight delayed. When booking a flight from Buffalo to Denver consider choosing Southwest (91%), United Airlines (89%) or Frontier (50%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Buffalo to Denver?

    The cheapest flight price from Buffalo to Denver is $83. On average you can expect to pay $645. The most popular route, (Buffalo - Denver Intl), can usually be booked for $163.

  • Can I find deals for flights from Buffalo to Denver that include hotel bookings?

    Yes. In addition to deals on Buffalo to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Denver.

  • Can I find deals for business class flights from Buffalo to Denver?

    Yes. Cheapflights offers flight deals from Buffalo to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Denver?

    Currently, June is the cheapest month in which you can book a flight from Buffalo to Denver (average of $118). Flying from Buffalo to Denver in April is currently the most expensive (average of $226). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buffalo to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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John F Kennedy Intl to Denver flights
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White Plains to Denver flights
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Rochester to Colorado Springs flights
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White Plains to Colorado Springs flights
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Rochester to Grand Junction flights
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Buffalo to Aspen flights
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Rutland to Denver flights
Albany to Aspen flights
White Plains to Grand Junction flights

Top 6 airlines flying from Buffalo to Denver

Discover the top 6 airlines that operate flights from Buffalo to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$215FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$188Average$296FlexibilityNo cancel feeOn-time62%
DeltaCheapest$194Average$275FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$204Average$309FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$211Average$324FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$266Average$423FlexibilityNo cancel feeOn-time63%

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