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CA $146 Cheap Flights from Buffalo (BUF) to Denver (DEN)

View CA $146 flight on Tue, Sep 1, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at CA $146 for one-way flights and CA $300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Wed, Sep 2 - Sat, Sep 5
BUF
Buffalo
DEN
Denver
CA $300 Roundtrip, found 1 day ago
CA $300
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Wed, Sep 2 from Buffalo to Denver, returning Sat, Sep 5, priced at CA $300 found 1 day ago
JetBlue Airways
Fri, Aug 28 - Tue, Sep 1
BUF
Buffalo
DEN
Denver
CA $311 Roundtrip, found 1 day ago
CA $311
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Fri, Aug 28 from Buffalo to Denver, returning Tue, Sep 1, priced at CA $311 found 1 day ago
JetBlue Airways
Mon, Aug 31 - Wed, Sep 2
BUF
Buffalo
DEN
Denver
CA $314 Roundtrip, found 13 hours ago
CA $314
Roundtrip
found 13 hours ago
Select JetBlue Airways flight, departing Mon, Aug 31 from Buffalo to Denver, returning Wed, Sep 2, priced at CA $314 found 13 hours ago
JetBlue Airways
Fri, Aug 28 - Tue, Sep 1
BUF
Buffalo
DEN
Denver
CA $325 Roundtrip, found 1 day ago
CA $325
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Fri, Aug 28 from Buffalo to Denver, returning Tue, Sep 1, priced at CA $325 found 1 day ago
JetBlue Airways
Fri, Aug 28 - Sat, Sep 5
BUF
Buffalo
DEN
Denver
CA $332 Roundtrip, found 1 day ago
CA $332
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Fri, Aug 28 from Buffalo to Denver, returning Sat, Sep 5, priced at CA $332 found 1 day ago
JetBlue Airways
Sat, Aug 29 - Mon, Aug 31
BUF
Buffalo
DEN
Denver
CA $335 Roundtrip, found 17 hours ago
CA $335
Roundtrip
found 17 hours ago
Select JetBlue Airways flight, departing Sat, Aug 29 from Buffalo to Denver, returning Mon, Aug 31, priced at CA $335 found 17 hours ago
JetBlue Airways
Fri, Aug 28 - Mon, Aug 31
BUF
Buffalo
DEN
Denver
CA $346 Roundtrip, found 1 day ago
CA $346
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Fri, Aug 28 from Buffalo to Denver, returning Mon, Aug 31, priced at CA $346 found 1 day ago
JetBlue Airways
Mon, Aug 31 - Tue, Sep 1
BUF
Buffalo
DEN
Denver
CA $351 Roundtrip, found 1 day ago
CA $351
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Mon, Aug 31 from Buffalo to Denver, returning Tue, Sep 1, priced at CA $351 found 1 day ago
American Airlines
Sat, Sep 5 - Fri, Sep 11
BUF
Buffalo
DEN
Denver
CA $475 Roundtrip, found 20 hours ago
CA $475
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sat, Sep 5 from Buffalo to Denver, returning Fri, Sep 11, priced at CA $475 found 20 hours ago
Delta
Sat, Sep 5 - Sun, Sep 6
BUF
Buffalo
DEN
Denver
CA $475 Roundtrip, found 16 hours ago
CA $475
Roundtrip
found 16 hours ago
Select Delta flight, departing Sat, Sep 5 from Buffalo to Denver, returning Sun, Sep 6, priced at CA $475 found 16 hours ago

Alternative airports near Denver

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

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city centre is 32 minutes. Flights from CA $514
DEN
Denver Intl.
Cheapest
Average driving time to city centre32 min
Flights from CA $514

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

February is typically the cheapest month to fly

From CA $212 - CA $483 per traveller.

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.) cost?
You can find cheap one-way flights from CA $146 and cheap return flights from CA $300 BUF to DEN with Expedia. One-way flights typically cost between CA$235 and CA$690, and return flights often range between CA$489 and CA$1497. 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 BUF to DEN ticket fares go up or down.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
The cheapest months to fly from BUF to DEN are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
There are 2 airlines offering direct flights from Buffalo Niagara Intl. (BUF) to Denver Intl. (DEN). Here are the carriers:
  • Southwest Airlines operates 8 direct flights from Buffalo Niagara Intl. to Denver Intl. every week.
  • United operates 7 direct flights from Buffalo Niagara Intl. to Denver Intl. every week.
What is the cheapest airline that flies from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
United is one of the cheapest airlines offering nonstop return flights from Buffalo Niagara Intl. (BUF) to Denver Intl. (DEN), 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 Buffalo Niagara Intl. (BUF) to Denver Intl. (DEN), with tickets starting from around CA$360. 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.) will differ from traveler to traveler. If you like to fly early, Southwest Airlines 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
You'll find approximately 2 nonstop flights per day from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.). For even more choices, look at flights that include layovers, as there are around 92 connecting flights per day. Some common connection points include Baltimore Washington Intl. Thurgood Marshall (BWI), O'Hare Intl. (ORD), and Midway Intl. (MDW).
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Buffalo Niagara Intl. (BUF) to Denver Intl. (DEN) typically departs around 5:00 AM local time. This service is operated by American Airlines and is seasonal, active only 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
You'll typically find the most flights from Buffalo Niagara Intl. (BUF) to Denver Intl. (DEN) on a Thursday, with around 50 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Southwest Airlines, United, and Delta. Flight schedules are quite consistent throughout the week, so you'll have plenty of choices regardless of the day you choose to fly.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Buffalo Niagara Intl. (BUF) to Denver Intl. (DEN) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Southwest Airlines and United, offer flights during this window. Many travellers prefer this because it allows for an early start to their day in Denver.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
A nonstop flight from BUF to DEN typically takes around 3 hours 50 minutes, covering approximately 2,182 kilometers. Connecting flights on this route usually add 4 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
You can fly business class or first class between BUF and DEN. Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta
First class cabins are available on Delta, United, and American Airlines.
How do I earn miles on a Buffalo, NY (BUF) to Denver, CO (DEN) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF) to Denver, CO (DEN) 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 Denver, CO (DEN) from Buffalo, NY (BUF)?
If you're planning to travel to Denver from Buffalo Niagara Intl. (BUF), you can fly directly into Denver Intl. (DEN). Some flights may connect through major hubs like Baltimore Washington Intl. Thurgood Marshall (BWI), Midway Intl. (MDW), or Nashville Intl. (BNA) before reaching Denver. 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 Buffalo, NY (BUF) to Denver, CO (DEN) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF) to Denver, CO (DEN) 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 Buffalo, NY (BUF) to Denver, CO (DEN) flight and hotel package?
Securing a Buffalo, NY (BUF) to Denver, CO (DEN) 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver Intl.)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Denver, CO (DEN-Denver 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
Buffalo Niagara Intl.
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Roundtrip price
CA $278
Distance
2169 km
Average flight time
1 hour 46 mins

Book with confidence

Buffalo to Denver Flights

The easy way to book your flights from Buffalo to Denver 

With Expedia, it’s simple to find and book flights to Denver from Buffalo 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 Denver 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 Buffalo to Denver today, tomorrow, or this week.  

 

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

Sort your search results by price to find great deals on your flight from Buffalo to Denver—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Denver from Buffalo currently is just CA $300 rising to CA $475.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Denver  
  • 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 Denver from Buffalo 

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 Denver with Expedia today.

Buffalo to Denver Flights

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