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?

Frontier and United Airlines can get you from Denver to Buffalo in just under 3h 15m. Your travel time can differ by up to 6h 40m. 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 ($101), JetBlue ($129), and United Airlines ($166) offers the cheapest pricing from Denver to Buffalo. Frontier is currently priced 69% below the average price you’ll pay for this route.

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

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $71. Users have also found prices from $108 and $115 on United Airlines and JetBlue, respectively.

In terms of precipitation, rainfall in Buffalo ranges from 2.5 - 4.0 inches per month. November is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Buffalo when rainfall is around 2.5 in.

If weather is an important factor for your trip to Buffalo, 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What are the cheapest flights from Denver to Buffalo?

While on average a flight from Denver to Buffalo is generally $327, our data shows the cheapest flight currently is $253. When looking at the most popular route, (Denver Intl - Buffalo), you can expect to pay $199 for that flight.

What are the most reliable airlines from Denver to Buffalo?

The top 3 most reliable airlines when flying from Denver to Buffalo are Frontier (100%), United Airlines (92%) and Southwest (76%).

What are the most popular airlines that fly from Denver to Buffalo?

Before booking your flight from Denver to Buffalo check out the most popular airlines for this route: Frontier, United Airlines or Southwest.

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.

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.

$65+ Flights from Denver to Buffalo

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Denver to Buffalo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

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 December 23, 2025.

Mon 12/296:00 amDEN - BUF

1 stop5h 24mUnited Airlines

Wed 2/411:00 amBUF - DEN

1 stop6h 52mUnited Airlines

Deal found 12/22

$317

Mon 12/292:45 pmDEN - BUF

1 stop5h 44mAmerican Airlines

Wed 2/47:00 amBUF - DEN

2 stops10h 19mAmerican Airlines

Deal found 12/22

$322

Sat 12/2711:59 pmDEN - BUF

1 stop10h 37mFrontier

Sat 1/106:33 pmBUF - DEN

1 stop15h 51mFrontier

Deal found 12/22

$323

Wed 12/2411:59 pmDEN - BUF

1 stop11h 13mFrontier

Fri 1/29:57 amBUF - DEN

1 stop15h 07mFrontier

Deal found 12/21

$414

Fri 12/2611:59 pmDEN - BUF

1 stop18h 51mFrontier

Fri 1/29:57 amBUF - DEN

1 stop15h 07mFrontier

Deal found 12/22

$472

Sat 12/2711:05 amDEN - BUF

1 stop6h 24mFrontier

Fri 1/29:57 amBUF - DEN

1 stop15h 07mFrontier

Deal found 12/22

$482

Fri 12/266:25 amDEN - BUF

1 stop6h 44mDelta

Fri 1/26:10 amBUF - DEN

1 stop5h 39mDelta

Deal found 12/22

$484

Thu 12/255:00 amDEN - BUF

2 stops9h 18mAmerican Airlines

Sat 1/36:00 amBUF - DEN

1 stop6h 36mAmerican Airlines

Deal found 12/22

$489

Sat 12/275:35 amDEN - BUF

1 stop8h 40mSouthwest

Sat 1/105:50 amBUF - DEN

2 stops9h 15mSouthwest

Deal found 12/22

$511

Wed 12/2410:35 amDEN - BUF

1 stop4h 37mDelta

Fri 1/26:10 amBUF - DEN

1 stop5h 39mDelta

Deal found 12/23

$550

Best flights from Denver to Buffalo
Discover carefully curated flight deals from Denver to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Wed 2/1812:59 amDEN - BUF

1 stop9h 55mFrontier

Mon 2/231:48 pmBUF - DEN

1 stop9h 53mFrontier

Deal found 12/23

$182

Wed 3/185:55 pmDEN - BUF

Nonstop3h 15mUnited Airlines

Mon 3/238:17 amBUF - DEN

Nonstop3h 44mUnited Airlines

Deal found 12/21

$199

Thu 1/2211:35 amDEN - BUF

1 stop10h 12mMultiple Airlines

Mon 1/261:39 pmBUF - DEN

1 stop10h 06mMultiple Airlines

Deal found 12/21

$206

Wed 4/14:03 pmDEN - BUF

1 stop5h 47mAmerican Airlines

Wed 4/85:03 pmBUF - DEN

1 stop5h 30mAmerican Airlines

Deal found 12/22

$219

Wed 3/186:25 amDEN - BUF

1 stop7h 05mSouthwest

Mon 3/235:50 pmBUF - DEN

1 stop6h 45mSouthwest

Deal found 12/21

$219

Thu 2/56:40 amDEN - BUF

1 stop6h 18mDelta

Sun 2/812:25 pmBUF - DEN

1 stop7h 03mDelta

Deal found 12/21

$219

Wed 1/216:32 pmDEN - BUF

1 stop22h 32mFrontier

Sat 1/2412:29 pmBUF - DEN

1 stop25h 59mFrontier

Deal found 12/20

$183

Tue 2/37:55 amDEN - BUF

1 stop7h 52mAmerican Airlines

Sun 2/87:00 amBUF - DEN

1 stop7h 49mAmerican Airlines

Deal found 12/22

$219

Tue 2/31:30 pmDEN - BUF

1 stop4h 59mUnited Airlines

Sun 2/89:55 amBUF - DEN

1 stop8h 42mUnited Airlines

Deal found 12/22

$219

Tue 2/312:30 amDEN - BUF

1 stop8h 38mDelta

Fri 2/66:49 pmBUF - DEN

1 stop7h 39mDelta

Deal found 12/21

$219

Wed 2/256:20 pmDEN - BUF

1 stop15h 14mFrontier

Sun 3/110:47 amBUF - DEN

1 stop23h 08mFrontier

Deal found 12/21

$218

Last-minute flights from Denver to Buffalo
Discover last-minute flight deals from Denver to Buffalo. Data last updated December 23, 2025 and is based on user searches.

Thu 1/111:00 amDEN - BUF

1 stop19h 57mFrontier

Thu 1/89:08 amBUF - DEN

1 stop15h 51mFrontier

Deal found 12/21

$270

Mon 1/59:24 amDEN - BUF

1 stop9h 44mFrontier

Thu 1/89:08 amBUF - DEN

1 stop25h 16mFrontier

Deal found 12/22

$233

Mon 1/53:59 pmDEN - BUF

1 stop6h 00mAmerican Airlines

Thu 1/86:00 amBUF - DEN

2 stops10h 14mAmerican Airlines

Deal found 12/22

$262

Tue 1/207:00 amDEN - BUF

1 stop6h 10mSouthwest

Tue 1/279:25 amBUF - DEN

1 stop8h 35mSouthwest

Deal found 12/21

$219

Tue 1/2012:28 pmDEN - BUF

2 stops9h 13mAmerican Airlines

Tue 1/274:01 pmBUF - DEN

2 stops9h 15mAmerican Airlines

Deal found 12/21

$298

Wed 1/216:32 pmDEN - BUF

1 stop22h 32mFrontier

Sat 1/2412:29 pmBUF - DEN

1 stop25h 59mFrontier

Deal found 12/20

$183

Wed 1/217:30 amDEN - BUF

1 stop27h 14mMultiple Airlines

Sat 1/2412:29 pmBUF - DEN

2 stops21h 50mMultiple Airlines

Deal found 12/20

$218

Wed 1/2112:28 pmDEN - BUF

2 stops8h 27mAmerican Airlines

Sat 1/2412:58 pmBUF - DEN

2 stops9h 55mAmerican Airlines

Deal found 12/20

$229

Wed 1/2111:17 amDEN - BUF

1 stop6h 08mUnited Airlines

Sun 1/259:55 amBUF - DEN

1 stop6h 51mUnited Airlines

Deal found 12/21

$299

Thu 1/2211:35 amDEN - BUF

1 stop10h 12mMultiple Airlines

Mon 1/261:39 pmBUF - DEN

1 stop10h 06mMultiple Airlines

Deal found 12/21

$206

Thu 1/2910:50 amDEN - BUF

2 stops9h 30mSouthwest

Wed 2/41:20 pmBUF - DEN

2 stops8h 15mSouthwest

Deal found 12/21

$312

One-way flights from Denver to Buffalo
Search for one-way flight options from Denver to Buffalo. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Wed 3/411:59 pmDEN - BUF

1 stop9h 35mFrontier

Deal found 12/21

$65

Wed 1/217:30 amDEN - BUF

1 stop27h 14mFrontier

Deal found 12/21

$90

Wed 2/1812:59 amDEN - BUF

1 stop9h 55mFrontier

Deal found 12/22

$97

Wed 3/185:55 pmDEN - BUF

Nonstop3h 15mUnited Airlines

Deal found 12/22

$100

Sun 1/186:07 pmDEN - BUF

1 stop14h 42mFrontier

Deal found 12/21

$107

Thu 2/1912:59 amDEN - BUF

1 stop8h 01mDelta

Deal found 12/22

$110

Sat 1/2411:40 amDEN - BUF

2 stops20h 27mFrontier

Deal found 12/22

$113

Wed 3/47:00 amDEN - BUF

2 stops8h 52mAmerican Airlines

Deal found 12/22

$115

Fri 1/239:05 pmDEN - BUF

2 stops35h 02mFrontier

Deal found 12/21

$118

Thu 3/1911:59 pmDEN - BUF

1 stop7h 05mJetBlue

Deal found 12/21

$129

Sat 1/172:40 pmDEN - BUF

1 stop6h 17mDelta

Deal found 12/21

$130

Find flight deals from Denver to Buffalo

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$155 (Frontier)
One-way from	$65 (CheapOair)
Popular in	January
Cheapest in	October
Average price	$441
Good round-trip deal	$279 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

Search Deals

One-way flight from Denver Intl to Buffalo

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($66 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($13 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

Fly from

Fly to

Route

Depart

Return

Price

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Wed 2/18

12:59 am-12:54 pm

1 stop9h 55m

Buffalo

Mon 2/23

1:48 pm-9:41 pm

1 stop9h 53m

$182

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Wed 1/21

6:32 pm-7:04 pm

1 stop22h 32m

Buffalo

Sat 1/24

12:29 pm-12:28 pm

1 stop25h 59m

$183

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Wed 3/18

5:55 pm-11:10 pm

Nonstop3h 15m

Buffalo

Mon 3/23

8:17 am-10:01 am

Nonstop3h 44m

$199

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Thu 1/22

11:35 am-11:47 pm

1 stop10h 12m

Buffalo

Mon 1/26

1:39 pm-9:45 pm

1 stop10h 06m

$206

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Wed 2/25

6:20 pm-11:34 am

1 stop15h 14m

Buffalo

Sun 3/1

10:47 am-7:55 am

1 stop23h 08m

$218

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Wed 4/1

4:03 pm-11:50 pm

1 stop5h 47m

Buffalo

Wed 4/8

5:03 pm-8:33 pm

1 stop5h 30m

$219

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Wed 3/18

6:25 am-3:30 pm

1 stop7h 05m

Buffalo

Mon 3/23

5:50 pm-10:35 pm

1 stop6h 45m

$219

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Thu 2/5

6:40 am-2:58 pm

1 stop6h 18m

Buffalo

Sun 2/8

12:25 pm-5:28 pm

1 stop7h 03m

$219

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Tue 2/3

7:55 am-5:47 pm

1 stop7h 52m

Buffalo

Sun 2/8

7:00 am-12:49 pm

1 stop7h 49m

$219

DenverBuffalo

DEN - BUF

DENBUF

Denver Intl

Tue 2/3

1:30 pm-8:29 pm

1 stop4h 59m

Buffalo

Sun 2/8

9:55 am-4:37 pm

1 stop8h 42m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 21 results

Compare providers for flights from Denver to Buffalo

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.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price 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?

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?

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?

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

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

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

8.0

Very good

4,253 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,014 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,105 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,054 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.8

Fair

3,075 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

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?
Frontier and United Airlines can get you from Denver to Buffalo in just under 3h 15m. Your travel time can differ by up to 6h 40m. 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 ($101), JetBlue ($129), and United Airlines ($166) offers the cheapest pricing from Denver to Buffalo. Frontier is currently priced 69% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Denver to Buffalo one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $71. Users have also found prices from $108 and $115 on United Airlines and JetBlue, respectively.
What are the most reliable airlines from Denver to Buffalo?
The top 3 most reliable airlines when flying from Denver to Buffalo are Frontier (100%), United Airlines (92%) and Southwest (76%).
What are the cheapest flights from Denver to Buffalo?
While on average a flight from Denver to Buffalo is generally $327, our data shows the cheapest flight currently is $253. When looking at the most popular route, (Denver Intl - Buffalo), you can expect to pay $199 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

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Top 6 airlines flying from Denver to Buffalo

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$118	Average$242	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$129	Average$326	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$182	Average$275	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$189	Average$331	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$236	Average$337	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$273	Average$456	FlexibilityNo cancel fee	On-time63%

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$65+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denver to Buffalo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Cheapest flights from Denver to BuffaloExplore 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 December 23, 2025.

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 December 23, 2025.

Find flight deals from Denver to Buffalo

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Denver to Buffalo that are best for you.

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.

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.

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?

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

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

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

Reviews of airlines servicing Buffalo

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.

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?

How long is the flight from Denver to Buffalo?

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

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

What are the most reliable airlines from Denver to Buffalo?

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Top 6 airlines flying from Denver to Buffalo

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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 December 23, 2025.