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CA $134 Cheap Flights from Denver (DEN) to Buffalo (BUF)

View CA $134 flight on Wed, Aug 12, 2026Opens in a new window

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

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Cheap flights from Denver (DEN) to Buffalo (BUF)

Prices were available within the past 7 days and start at CA $134 for one-way flights and CA $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Tue, Aug 25 - Tue, Sep 1
DEN
Denver
BUF
Buffalo
CA $268 Roundtrip, found 3 days ago
CA $268
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Aug 25 from Denver to Buffalo, returning Tue, Sep 1, priced at CA $268 found 3 days ago
JetBlue Airways
Tue, Aug 18 - Wed, Sep 2
DEN
Denver
BUF
Buffalo
CA $269 Roundtrip, found 5 days ago
CA $269
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Tue, Aug 18 from Denver to Buffalo, returning Wed, Sep 2, priced at CA $269 found 5 days ago
JetBlue Airways
Mon, Aug 24 - Tue, Sep 8
DEN
Denver
BUF
Buffalo
CA $289 Roundtrip, found 12 hours ago
CA $289
Roundtrip
found 12 hours ago
Select JetBlue Airways flight, departing Mon, Aug 24 from Denver to Buffalo, returning Tue, Sep 8, priced at CA $289 found 12 hours ago
JetBlue Airways
Fri, Sep 4 - Tue, Sep 8
DEN
Denver
BUF
Buffalo
CA $301 Roundtrip, found 3 hours ago
CA $301
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Fri, Sep 4 from Denver to Buffalo, returning Tue, Sep 8, priced at CA $301 found 3 hours ago
JetBlue Airways
Sat, Aug 8 - Thu, Aug 27
DEN
Denver
BUF
Buffalo
CA $311 Roundtrip, found 5 days ago
CA $311
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sat, Aug 8 from Denver to Buffalo, returning Thu, Aug 27, priced at CA $311 found 5 days ago
JetBlue Airways
Mon, Aug 24 - Sun, Sep 6
DEN
Denver
BUF
Buffalo
CA $323 Roundtrip, found 12 hours ago
CA $323
Roundtrip
found 12 hours ago
Select JetBlue Airways flight, departing Mon, Aug 24 from Denver to Buffalo, returning Sun, Sep 6, priced at CA $323 found 12 hours ago
JetBlue Airways
Fri, Aug 28 - Sun, Aug 30
DEN
Denver
BUF
Buffalo
CA $333 Roundtrip, found 2 days ago
CA $333
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Fri, Aug 28 from Denver to Buffalo, returning Sun, Aug 30, priced at CA $333 found 2 days ago
JetBlue Airways
Tue, Aug 25 - Mon, Sep 14
DEN
Denver
BUF
Buffalo
CA $334 Roundtrip, found 12 hours ago
CA $334
Roundtrip
found 12 hours ago
Select JetBlue Airways flight, departing Tue, Aug 25 from Denver to Buffalo, returning Mon, Sep 14, priced at CA $334 found 12 hours ago
American Airlines
Tue, Aug 25 - Mon, Sep 14
DEN
Denver
BUF
Buffalo
CA $401 Roundtrip, found 12 hours ago
CA $401
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Tue, Aug 25 from Denver to Buffalo, returning Mon, Sep 14, priced at CA $401 found 12 hours ago
Delta
Tue, Aug 25 - Mon, Sep 14
DEN
Denver
BUF
Buffalo
CA $411 Roundtrip, found 12 hours ago
CA $411
Roundtrip
found 12 hours ago
Select Delta flight, departing Tue, Aug 25 from Denver to Buffalo, returning Mon, Sep 14, priced at CA $411 found 12 hours ago

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 centre is 16 minutes. Flights from CA $487
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city centre16 min
Flights from CA $487

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 CA $134 and cheap return flights from CA $268 DEN to BUF with Expedia. One-way flights typically cost between CA$215 and CA$784, and return flights often range between CA$683 and CA$1810. 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 DEN to BUF ticket fares go up or down.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
September is typically the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), with average return fares around CA$467. September often sees lower prices as the summer travel rush ends and before the holiday season begins, leading to reduced demand. Other cheap months to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) include April and August.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
There are 2 airlines offering direct flights from Denver Intl. (DEN) to Buffalo Niagara Intl. (BUF):
  • United operates 10 direct flights from Denver Intl. to Buffalo Niagara Intl. every week.
  • Southwest Airlines operates 8 direct flights from Denver Intl. to Buffalo Niagara Intl. every 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 return flights from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), with tickets starting from around CA$231 for flights that can be booked for departure within the next year. Sun Country Airlines offers one of the cheapest connecting return flights from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) starting from around CA$597. These prices are per adult for economy/coach class. 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.
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-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. Southwest Airlines offers the most daily flights from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), 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.)?
The cheapest months to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) are typically September and April, with average return flights around CA$467. The most popular months for this route are December and October, meaning you'll find plenty of flight options during these times. While there isn't a single month that is both the cheapest and most popular, if you're looking for good value, aiming for September or April could save you money, and if you prioritize flexibility with flight times, December and October offer more choices.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You'll find approximately 3 nonstop flights per day from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.). For even more choices, look at flights that include layovers, as there are around 132 connecting flights per day. Some common connection points include O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) typically departs around 12:00 AM local time. This flight is operated by Frontier Airlines. This is a seasonal service active in August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You'll typically find the most flights from Denver International Airport (DEN) to Buffalo Niagara International Airport (BUF) on a Friday, with around 73 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, United, and Delta. Friday offers notably more flight options compared to other days of the week, making it a great day to consider if you're looking for flexibility.
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, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) are in the early morning, from 6am to 9am. Many major carriers, including Southwest Airlines, American Airlines and Delta, offer flights during this window. Many travelers prefer these times because it allows for an early start to their travel day, often getting them to their destination with plenty of time left in the day.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
When flying from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), you have a few options. A nonstop flight typically takes around 3 hours 18 minutes, covering a distance of approximately 2182 kilometres. If you opt for a one-stop flight, your travel time will be longer, usually around 6 hours 48 minutes. For flights with two or more stops, expect the journey to take about 9 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Yes, you can fly business class or first class between DEN and BUF. You can fly business class with Frontier Airlines and Delta.First class cabins are available on Delta, United, and American Airlines.
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, NY (BUF) from Denver, CO (DEN)?
If you're planning to travel to Buffalo from Denver Intl. (DEN), you can fly directly into Buffalo Niagara Intl. (BUF). Some flights may connect through major hubs like Eppley Field (OMA), Lambert-St. Louis Intl. (STL), or Kansas City Intl. (MCI) 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.) flight and hotel package 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, JetBlue Airways
Roundtrip price
CA $267
Distance
2169 km
Average flight time
5 hours 27 mins

Book with confidence

Denver to Buffalo Flights

The easy way to book your flights from Denver to Buffalo 

With Expedia, it’s simple to find and book flights to Buffalo from Denver whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Buffalo Niagara Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Denver to Buffalo today, tomorrow, or this week.  

 

Save dollars with cheap flights from Denver Intl., DEN to Buffalo Niagara Intl., BUF 

Sort your search results by price to find great deals on your flight from Denver to Buffalo—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Buffalo from Denver currently is just CA $268 rising to CA $411.  

Here are more money-saving tips: 

  • Fly in August when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Buffalo  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Buffalo from Denver 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Buffalo with Expedia today.

Denver to Buffalo Flights

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