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$57+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
May 18 — May 251
Sun 5/18
Sun 5/25
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to Denver Intl are usually found in September or August, booked 54 days in advance, depart on a Wednesday or Friday and return on a Monday

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 May 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$210
(CheapOair)

One-way from

$57
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$347

Good round-trip deal

$277 or less

Good one-way deal

$142 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.
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From Buffalo to Denver Intl
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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 ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Buffalo to Denver Intl.
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Price to beat on a one-way flight from Buffalo to Denver Intl.
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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 May 13, 2025.

This FlightHub deal was found by Cheapflights users on 5/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:39 pmBUF - DEN
Nonstop3h 43mFrontier
Mon 9/87:30 amDEN - BUF
Nonstop3h 13mFrontier
Deal found 5/12$208
This American Airlines deal was found by Cheapflights users on 5/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/125:10 amBUF - DEN
1 stop5h 13mAmerican Airlines
Tue 6/172:47 pmDEN - BUF
1 stop5h 47mAmerican Airlines
Deal found 5/12$217
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/97:40 pmBUF - DEN
1 stop5h 48mDelta
Sun 7/2012:55 amDEN - BUF
1 stop5h 26mDelta
Deal found 5/11$237
This JetBlue deal was found by Cheapflights users on 5/11. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/91:20 pmBUF - DEN
1 stop10h 04mJetBlue
Sun 7/2011:55 pmDEN - BUF
1 stop7h 05mJetBlue
Deal found 5/11$251
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/55:05 amBUF - DEN
Nonstop3h 35mSouthwest
Tue 6/107:45 pmDEN - BUF
Nonstop3h 05mSouthwest
Deal found 5/12$267
This CheapOair deal was found by Cheapflights users on 5/12. 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 8/2911:33 amBUF - DEN
1 stop8h 28mMultiple Airlines
Mon 9/87:30 amDEN - BUF
Nonstop3h 13mMultiple Airlines
Deal found 5/12$269
This United Airlines deal was found by Cheapflights users on 5/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/178:20 amBUF - DEN
Nonstop3h 45mUnited Airlines
Fri 6/205:35 pmDEN - BUF
Nonstop3h 10mUnited Airlines
Deal found 5/12$277

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 May 13, 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 8/29

1:39 pm-3:22 pm

Nonstop3h 43m

Denver Intl

Mon 9/8

7:30 am-12:43 pm

Nonstop3h 13m

$208

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Thu 6/12

5:10 am-8:23 am

1 stop5h 13m

Denver Intl

Tue 6/17

2:47 pm-10:34 pm

1 stop5h 47m

$217

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 7/9

7:34 pm-11:06 pm

1 stop5h 32m

Denver Intl

Fri 7/11

12:55 am-8:21 am

1 stop5h 26m

$237

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 7/9

1:20 pm-9:24 pm

1 stop10h 04m

Denver Intl

Sun 7/20

11:55 pm-9:00 am

1 stop7h 05m

$251

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Thu 6/5

5:05 am-6:40 am

Nonstop3h 35m

Denver Intl

Tue 6/10

7:45 pm-12:50 am

Nonstop3h 05m

$267

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 8/29

11:33 am-6:01 pm

1 stop8h 28m

Denver Intl

Mon 9/8

7:30 am-12:43 pm

Nonstop3h 13m

$269

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Tue 6/17

8:20 am-10:05 am

Nonstop3h 45m

Denver Intl

Fri 6/20

5:35 pm-10:45 pm

Nonstop3h 10m

$277

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Fri 7/4

2:10 pm-4:02 pm

Nonstop3h 52m

$67

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 6/11

8:20 am-10:05 am

Nonstop3h 45m

$99

BuffaloDenver

BUF - DEN

BUFDEN

Buffalo

Wed 6/11

5:10 am-8:23 am

1 stop5h 13m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 14 results
1
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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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Denver flight deals on Cheapflights vs. FlightHub >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 May 9, 2025.

Booking 54 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, October is the cheapest month in which you can book a flight from Buffalo to Denver (average of $197). Flying from Buffalo to Denver in March is currently the most expensive (average of $278). 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 May 13, 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 evening could potentially save you up to 44% 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 May 11, 2025.

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

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 May 13, 2025.
To help decide which airline to fly from Buffalo to Denver, see what other customers have to say about Southwest, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,290 reviews

Crew

8.6

Food

7.1

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,290 reviews
Southwest
8.0
Very good
4,290 reviews

Crew

8.6

Food

7.1

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,290 reviews

Crew

8.6

Food

7.1

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,724 reviews
Southwest
8.0
Very good
4,290 reviews

Crew

8.6

Food

7.1

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,924 reviews
Southwest
8.0
Very good
4,290 reviews

Crew

8.6

Food

7.1

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,290 reviews

Crew

8.6

Food

7.1

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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.

  • How popular is this Buffalo to Denver flight route?

    This flight path from Buffalo to Denver Intl was viewed by 34 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Frontier ($210), American Airlines ($217), and Delta ($237) offers the cheapest pricing from Buffalo to Denver. Frontier is 36% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Buffalo to Denver one-way?

    One-way options have recently been found by users for as low as $57 on Frontier. Other airlines that offer cheap prices include United Airlines from $99 and American Airlines from $109 one-way.

  • What are the cheapest flights from Buffalo to Denver?

    The cheapest flight price from Buffalo to Denver is $125. On average you can expect to pay $639. The most popular route, (Buffalo - Denver Intl), can usually be booked for $176.

  • 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, October is the cheapest month in which you can book a flight from Buffalo to Denver (average of $197). Flying from Buffalo to Denver in March is currently the most expensive (average of $278). 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 Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Silverthorne
Brighton
Thornton
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Limon
Greeley

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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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 May 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$243FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$206Average$249FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$211Average$317FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$216Average$333FlexibilityNo cancel feeOn-time71%
DeltaCheapest$220Average$297FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$308Average$444FlexibilityNo cancel feeOn-time63%

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