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

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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BUF
dic. 31 — ene. 71
mié. 12/31
mié. 1/7
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 Denver Intl to Buffalo are usually found in October or September, booked 72 days in advance, depart on a Friday or Monday and return on a Friday

Cheap flight deals from Denver to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Buffalo (BUF). 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 diciembre 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$152
(Southwest)

One-way from

$68
(Kiwi.com)

Popular in

January

Cheapest in

October

Average price

$414

Good round-trip deal

$469 or less

Good one-way deal

$208 or less
Provider with most accurate pricing for Denver Intl-Buffalo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Buffalo flights.
Search Deals
From Denver Intl to Buffalo
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One-way flight from Denver Intl to Buffalo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($49 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 December 2025
Search Deals
Price to beat on a round-trip flight from Denver Intl to Buffalo.
Search Deals
Price to beat on a one-way flight from Denver Intl to Buffalo.
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Find flight deals from Denver to Buffalo

Cheapest flights from Denver to Buffalo
Explore the most affordable flight options available from Denver to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
sáb. 12/1312:59 amDEN - BUF
1 stop8h 11mFrontier
dom. 1/111:15 pmBUF - DEN
1 stop25h 06mFrontier
Deal found 11/30$200
This Gotogate deal was found by Cheapflights users on 11/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/712:59 amDEN - BUF
1 stop7h 46mFrontier
sáb. 12/133:18 pmBUF - DEN
1 stop19h 06mFrontier
Deal found 11/29$203
This CheapOair deal was found by Cheapflights users on 11/29. 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.
mié. 12/1011:00 pmDEN - BUF
1 stop15h 00mFrontier
vie. 12/1212:37 pmBUF - DEN
1 stop12h 27mFrontier
Deal found 11/29$208
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
vie. 12/1211:59 pmDEN - BUF
1 stop12h 16mFrontier
dom. 12/143:18 pmBUF - DEN
1 stop9h 46mFrontier
Deal found 11/30$212
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
jue. 12/117:00 amDEN - BUF
2 stops26h 51mFrontier
dom. 12/143:18 pmBUF - DEN
1 stop9h 46mFrontier
Deal found 11/30$218
This American Airlines deal was found by Cheapflights users on 12/1. 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.
mar. 12/307:00 amDEN - BUF
1 stop6h 33mAmerican Airlines
mié. 1/75:16 pmBUF - DEN
1 stop8h 00mAmerican Airlines
Deal found 12/1$220
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
dom. 12/77:00 amDEN - BUF
1 stop7h 00mFrontier
dom. 12/1412:05 pmBUF - DEN
1 stop11h 33mFrontier
Deal found 11/30$223
This Frontier deal was found by Cheapflights users on 11/29. 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.
sáb. 12/611:59 pmDEN - BUF
1 stop12h 24mFrontier
lun. 12/83:18 pmBUF - DEN
1 stop9h 46mFrontier
Deal found 11/29$224
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
jue. 12/117:00 amDEN - BUF
2 stops26h 51mFrontier
lun. 12/1511:40 amBUF - DEN
1 stop24h 38mFrontier
Deal found 11/30$229

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Buffalo 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 diciembre 1, 2025.
Use the filters below to find and compare flights from Denver to Buffalo that are best for you.

Fly from

Denver

Fly to

Buffalo

Route

Depart

Return

Price

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

vie. 1/30

9:45 am-4:20 pm

1 stop4h 35m

Buffalo

mar. 2/3

5:50 am-12:35 pm

1 stop8h 45m

$188

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

sáb. 12/13

12:59 am-11:10 am

1 stop8h 11m

Buffalo

dom. 1/11

1:15 pm-12:21 pm

1 stop25h 06m

$200

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

vie. 1/9

2:42 pm-11:56 pm

1 stop7h 14m

Buffalo

mar. 1/13

3:38 pm-10:46 pm

1 stop9h 08m

$217

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

vie. 1/9

2:42 pm-11:56 pm

1 stop7h 14m

Buffalo

lun. 1/12

2:56 pm-8:44 pm

1 stop7h 48m

$217

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

jue. 1/8

6:30 am-2:58 pm

1 stop6h 28m

Buffalo

mar. 1/13

2:10 pm-7:28 pm

1 stop7h 18m

$217

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

mié. 1/28

11:15 am-8:29 pm

1 stop7h 14m

Buffalo

mar. 2/3

11:24 am-5:56 pm

1 stop8h 32m

$219

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

dom. 2/1

12:30 am-11:19 am

1 stop8h 49m

Buffalo

vie. 2/6

6:49 pm-12:28 am

1 stop7h 39m

$219

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

mar. 2/24

10:20 am-4:59 pm

1 stop4h 39m

Buffalo

dom. 3/1

6:35 pm-12:25 am

1 stop7h 50m

$219

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

mar. 2/3

2:42 pm-11:28 pm

1 stop6h 46m

Buffalo

vie. 2/6

6:49 pm-12:28 am

1 stop7h 39m

$219

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

mar. 2/24

12:59 am-11:18 am

1 stop8h 19m

Buffalo

sáb. 2/28

12:25 pm-5:24 pm

1 stop6h 59m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 22 results
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Compare providers for flights from Denver to Buffalo

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 Denver to Buffalo in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 Denver-Buffalo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Buffalo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Buffalo 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 Denver-Buffalo 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 Denver to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Denver 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 Denver to Buffalo

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Buffalo. Price data was last updated on November 28, 2025.

The best time to book flights from Denver to Buffalo is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Denver to Buffalo (average of $92). Flying from Denver to Buffalo 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 DEN to BUF?

Find hourly flight availability from Denver to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 1, 2025.

It’s optimal to fly from Denver to Buffalo in the morning. By choosing this option you can save up to 56% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Denver to Buffalo. Price data was last updated on November 29, 2025.

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

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated diciembre 1, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Denver to Buffalo. 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
4,253 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,010 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,065 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,041 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,094 reviews
Southwest
8.0
Very good
4,253 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Denver to Buffalo. 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 Denver to Buffalo flight route?

    This flight path from Denver Intl to Buffalo was viewed by 4 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 Denver to Buffalo?

    Southwest, Frontier, and Delta can get you from Denver to Buffalo in just under 4h 35m. Your travel time can differ by up to 3h 36m. The distance between Denver and Buffalo is about 1355 mi. This flight may include one or multiple stops.

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

    According to our current data, Frontier ($119), JetBlue ($129), and American Airlines ($182) offers the cheapest pricing from Denver to Buffalo. Frontier is currently priced 63% below the average price you’ll pay for this route.

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

    The top 3 most reliable airlines when flying from Denver to Buffalo are Frontier (87%), United Airlines (85%) and Southwest (69%).

  • What are the cheapest flights from Denver to Buffalo?

    While on average a flight from Denver to Buffalo is generally $492, our data shows the cheapest flight currently is $193. When looking at the most popular route, (Denver Intl - Buffalo), you can expect to pay $152 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Buffalo 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 Denver to Buffalo?

    Currently, October is the cheapest month in which you can book a flight from Denver to Buffalo (average of $92). Flying from Denver to Buffalo 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 Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Lockport
Cheektowaga
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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Alternative routes for Denver to Buffalo

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Top 6 airlines flying from Denver to Buffalo

Discover the top 6 airlines that operate flights from Denver to Buffalo. 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 diciembre 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$119Average$243FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$129Average$326FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$182Average$286FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$189Average$345FlexibilityNo cancel feeOn-time69%
DeltaCheapest$236Average$336FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$278Average$458FlexibilityNo cancel feeOn-time63%

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