$95 Cheap Flights from Denver (DEN) to Buffalo (BUF)

View $95 flight on Mon, May 11, 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Denver to Buffalo (DEN-BUF)

Prices were available within the past 7 days and start at $95 for one-way flights and $190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, May 13 - Tue, May 19
DEN
Denver
BUF
Buffalo
$190 Roundtrip, just found
$190
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, May 13 from Denver to Buffalo, returning Tue, May 19, priced at $190 just found
Frontier Airlines
Tue, Apr 21 - Tue, Apr 28
DEN
Denver
BUF
Buffalo
$200 Roundtrip, found 9 hours ago
$200
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Tue, Apr 21 from Denver to Buffalo, returning Tue, Apr 28, priced at $200 found 9 hours ago
Frontier Airlines
Fri, Apr 24 - Tue, Apr 28
DEN
Denver
BUF
Buffalo
$210 Roundtrip, found 18 hours ago
$210
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Fri, Apr 24 from Denver to Buffalo, returning Tue, Apr 28, priced at $210 found 18 hours ago
Frontier Airlines
Fri, May 1 - Wed, May 6
DEN
Denver
BUF
Buffalo
$211 Roundtrip, found 1 hour ago
$211
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, May 1 from Denver to Buffalo, returning Wed, May 6, priced at $211 found 1 hour ago
Frontier Airlines
Mon, Mar 2 - Mon, Mar 9
DEN
Denver
BUF
Buffalo
$214 Roundtrip, found 13 hours ago
$214
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Mon, Mar 2 from Denver to Buffalo, returning Mon, Mar 9, priced at $214 found 13 hours ago
Frontier Airlines
Tue, May 19 - Sat, May 23
DEN
Denver
BUF
Buffalo
$215 Roundtrip, just found
$215
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, May 19 from Denver to Buffalo, returning Sat, May 23, priced at $215 just found
JetBlue Airways
Fri, Apr 17 - Mon, Apr 20
DEN
Denver
BUF
Buffalo
$220 Roundtrip, found 1 hour ago
$220
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Fri, Apr 17 from Denver to Buffalo, returning Mon, Apr 20, priced at $220 found 1 hour ago
Delta
Wed, Apr 15 - Sat, Apr 18
DEN
Denver
BUF
Buffalo
$234 Roundtrip, found 1 day ago
$234
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Apr 15 from Denver to Buffalo, returning Sat, Apr 18, priced at $234 found 1 day ago
American Airlines
Wed, Apr 15 - Sat, Apr 18
DEN
Denver
BUF
Buffalo
$301 Roundtrip, found 1 day ago
$301
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Apr 15 from Denver to Buffalo, returning Sat, Apr 18, priced at $301 found 1 day ago
United
Tue, Apr 21 - Tue, Apr 28
DEN
Denver
BUF
Buffalo
$339 Roundtrip, found 9 hours ago
$339
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Apr 21 from Denver to Buffalo, returning Tue, Apr 28, priced at $339 found 9 hours ago

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Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $299
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $299

Find the cheapest month to fly from Denver (DEN) to Buffalo (BUF)

March is typically the cheapest month to fly

From $119 - $402 per traveler.

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from $95 and cheap return flights from $190 Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with Expedia. One-way flights typically cost between $166 and $837, and return flights often range between $344 and $1603. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
September is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), with average round-trip fares around $336. This is about 15% lower than the average price throughout the year, as travel demand typically decreases after the summer. Other affordable months include April and August.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You can fly direct from DEN to BUF on United, with around 13 flights per week.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
United is one of the cheapest airlines offering nonstop flights from Denver Intl. (DEN) to Buffalo Niagara Intl. (BUF), with round-trip tickets starting from around $369. This is a convenient option if you prefer a direct flight. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The best airline to fly with from Denver, CO (DEN) to Buffalo, NY (BUF) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. WN offers the most daily flights from Denver to Buffalo, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
For flights from Denver (DEN) to Buffalo (BUF), September and April are the best months to consider. September is the cheapest month with return flights averaging around $336, while April is also a good time to travel. These months provide a nice balance of price and availability, ensuring a smooth travel experience.*Prices based on flights available on Expedia in the last year.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You can find approximately 2 nonstop flights per day from Denver Intl. (DEN) to Buffalo Niagara Intl. (BUF). For more options, look at flights that include layovers.
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Denver International Airport (DEN) to Buffalo Niagara International Airport (BUF) typically departs at 12:00 AM local time, operated by Frontier Airlines. This is a seasonal service active in August, allowing you to start your journey early and make the most of your time in Buffalo. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The most popular departure times for flights from Denver International Airport (DEN) to Buffalo Niagara International Airport (BUF) are in the early morning, from 6am to 9am. About 26% of passengers prefer this time window. Many major carriers, including American Airlines, Southwest Airlines, and United Airlines, offer flights during this window. This timing works well because it allows you to arrive in Buffalo with plenty of time to start your day.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
A nonstop flight from DEN to BUF typically takes around 3 hours 20 minutes, covering approximately 1,356 miles. Connecting flights on this route usually add 5 hours to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
First class is available on flights from DEN to BUF. First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines

How much is a business class flight from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
A direct, return business class ticket from Denver (DEN) to Buffalo (BUF) typically costs between $1,705 - $2,307. there is no data available for one-way prices. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Buffalo from Denver Intl. (DEN)?
If you're planning to travel to Buffalo from Denver Intl. (DEN), you can fly into Buffalo Niagara Intl. (BUF) Some flights may connect through major hubs like Eppley Field (OMA), Kansas City Intl. (MCI), Love Field (DAL) before reaching Buffalo. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) Buffalo Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
If you booked your Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$190
Distance
1355 mi
Average flight time
5 hours 7 mins

Book with confidence

Denver to Buffalo Flights

The cheapest times to fly from Denver to Buffalo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Buffalo are during the month of May. You can find some of the cheapest flights from Denver to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Buffalo

Sunday is one of the best days to book for cheap flights from Denver to Buffalo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Buffalo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Buffalo in 2026. You can also book with separate airlines for your outbound and return journeys, from $95 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Buffalo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Buffalo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to Buffalo Flights

*Flight schedules are subject to change.

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