$44 Cheap Flights from Buffalo (BUF) to Denver (DEN)

Bundle Your Flight + Hotel & Save!

Featured airlines

Top nine airline logos for desktop

    Plan, book, fly with confidence
    trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
    bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
    one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Buffalo to Denver (BUF-DEN)

Prices were available within the past 7 days and start at $44 for one-way flights and $108 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, May 8 - Sat, May 18
BUF
Buffalo
DEN
Denver
$108 Roundtrip, found 14 hours ago
$108
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Wed, May 8 from Buffalo to Denver, returning Sat, May 18, priced at $108 found 14 hours ago
Frontier Airlines
Wed, May 8 - Mon, May 13
BUF
Buffalo
DEN
Denver
$124 Roundtrip, found 7 hours ago
$124
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Wed, May 8 from Buffalo to Denver, returning Mon, May 13, priced at $124 found 7 hours ago
Frontier Airlines
Sat, May 4 - Sat, May 11
BUF
Buffalo
DEN
Denver
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 4 from Buffalo to Denver, returning Sat, May 11, priced at $128 just found
Frontier Airlines
Wed, May 22 - Mon, Jun 3
BUF
Buffalo
DEN
Denver
$138 Roundtrip, found 11 hours ago
$138
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Wed, May 22 from Buffalo to Denver, returning Mon, Jun 3, priced at $138 found 11 hours ago
Frontier Airlines
Sat, May 4 - Sat, May 11
BUF
Buffalo
DEN
Denver
$144 Roundtrip, just found
$144
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 4 from Buffalo to Denver, returning Sat, May 11, priced at $144 just found
Frontier Airlines
Wed, May 8 - Tue, May 14
BUF
Buffalo
DEN
Denver
$148 Roundtrip, found 7 hours ago
$148
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Wed, May 8 from Buffalo to Denver, returning Tue, May 14, priced at $148 found 7 hours ago
Frontier Airlines
Wed, May 8 - Fri, May 17
BUF
Buffalo
DEN
Denver
$150 Roundtrip, found 14 hours ago
$150
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Wed, May 8 from Buffalo to Denver, returning Fri, May 17, priced at $150 found 14 hours ago
Frontier Airlines
Wed, Jun 5 - Mon, Jun 10
BUF
Buffalo
DEN
Denver
$158 Roundtrip, just found
$158
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jun 5 from Buffalo to Denver, returning Mon, Jun 10, priced at $158 just found
Frontier Airlines
Tue, May 7 - Wed, May 15
BUF
Buffalo
DEN
Denver
$160 Roundtrip, found 3 days ago
$160
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, May 7 from Buffalo to Denver, returning Wed, May 15, priced at $160 found 3 days ago
Frontier Airlines
Mon, May 20 - Sat, May 25
BUF
Buffalo
DEN
Denver
$167 Roundtrip, found 8 hours ago
$167
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Mon, May 20 from Buffalo to Denver, returning Sat, May 25, priced at $167 found 8 hours ago
Flights from Buffalo (BUF) to Denver (DEN)
Origin airport
Buffalo Niagara Intl.
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Sun Country Airlines, United
Roundtrip price
$108
Distance
1355 mi

Buffalo to Denver Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Buffalo to Denver offer the perfect respite. Not only does exploring Denver provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Buffalo to Denver may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from BUF to DEN today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Denver are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Denver more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Denver is $44 now!

Frequently asked questions

How much is a one-way flight from Buffalo Niagara Intl. Airport (BUF) to DEN?
Prepare to grab a bargain, because Buffalo flights to Denver start from $44. This is based on the lowest price found on Expedia for this route with a departure date in the next three months. This airfare is for an Frontier Airlines flight, leaving from Buffalo Niagara Intl. Airport (BUF) on June 29 2024 and touching down at Denver Airport. The price of this airfare was last updated on April 21 2024 and has not changed since.
How long does it take to fly from Buffalo Niagara Intl. Airport (BUF) to DIA airport?
With Frontier Airlines, a direct flight takes roughly 3 hours and 34 minutes. Book the 7:14PM flight from BUF and come in to land at Denver Airport at 8:48PM. Get your hands on a top deal on this and other routes when you use Expedia to book your trip.
Is it cheaper to buy a plane ticket from BUF to DIA airport last minute?
Booking your trip from Buffalo Niagara Intl. Airport (BUF) to Denver Intl. Airport (DEN) last minute could save you some dough if you stumble on a bargain. However, airfares don’t usually get cheaper as the date of departure nears. If you wait around, flights could also be booked out or the best seats taken (because who wants the middle seat?). If you don’t want to risk it, book well in advance of your departure date. Note that some of the biggest deals can be found up to 12 months in advance. If your favorite airline hasn’t released tickets yet, check back regularly as offers are updated on Expedia all the time.
What is the cheapest airline flying from Buffalo Niagara International Airport to DIA airport in the next 90 days?
Based on airfares found on Expedia with a departure date within the next 90 days, Frontier Airlines is the cheapest carrier flying from Buffalo to Denver. The fare for this journey starts at $44. This flight jets off from Buffalo Niagara International Airport on June 29 2024 and touches down at Denver Intl. Airport (DEN). The price was updated on April 21 2024 and has not changed since.
What's the cheapest price for a flight from Buffalo Niagara Intl. Airport (BUF) to Denver Intl. Airport (DEN) next month?
The lowest price for a one-way flight from Buffalo to Denver over the next month is $44. If you’re looking to travel soon, now’s the time to reel in this fare. This price was found after looking through all available flights on Expedia with a departure date within the next 30 days. This fare is for a one-way Frontier Airlines flight jetting off from Buffalo Niagara Intl. Airport (BUF) on May 18 2024 and coming in to land at Denver Intl. Airport (DEN). The price was updated on April 21 2024 and has not changed since.
What airline has the least delays from BUF to DIA airport?
With an on-time performance score of 87%, Frontier Airlines is the airline that’s most likely to get you from Buffalo Niagara Intl. Airport (BUF) to DIA airport without a delay. Flight delays can be an excuse to linger longer at the airport bar. However, they can also cause you to miss a vital connection that ruins your entire vacation. You can stay updated about delays by checking your flight status through the Expedia App before heading to the airport. If you’re already at the terminal and your plans will be significantly impacted, head to the customer service desk for assistance.
Can I find cheap nonstop flights from BUF to DEN in the next three months?
Get set to save some money because we’ve found a roundtrip nonstop flight with Frontier Airlines in the next 90 days for $88. The price was updated on April 21 2024 and is based on airfares found on Expedia with a departure date in the next three months. This flight from Buffalo to Denver takes off from Buffalo Niagara Intl. Airport (BUF) on May 18 2024 and arrives at DIA airport. The return date of the flight is May 25 2024.It’s easy to find nonstop cheap flights from Buffalo Niagara International Airport to DIA airport by making use of our filters. Start by keying in the details of your journey, then click “Nonstop” under “Filter by” on the left side of the page. Your results will be listed with the cheapest airfare first. If there’s no reason to fly on a certain day, make use of our handy “Flexible dates” feature. This lets you compare prices for nearby dates and clinch the best deal possible.
What airports do you fly into for Denver from Buffalo?
From Buffalo, you can fly into Denver via Denver Intl. Airport (DEN), Centennial Airport (APA) and Broomfield, CO (BJC-Rocky Mountain Metropolitan). It’s wise to check which airport is more convenient for you before making your decision. If you opt for Denver Intl. Airport (DEN), it’s roughly 19 mi east of downtown. Use the dollars you save when booking your airfare with Expedia to enjoy the city’s top attractions, such as Coors Field and Empower Field at Mile High.
What are the most popular departure times for flights from Buffalo Niagara Intl. Airport (BUF) to DEN?
Between 1:00 PM - 2:00 PM is when you’ll find lots of Frontier Airlines flights jetting off from Buffalo Niagara Intl. Airport (BUF) to Denver Airport. Want some good advice? Book a trip that departs sometime in the morning. With air traffic yet to build up, your odds of traveling on a delay-free flight are better.
Can I change the date of my flight from BUF to Denver Intl. Airport (DEN)?
Sometimes life gets in the way of plans, so Expedia is here to help make amending your journey as easy as possible. First, access your Buffalo Niagara International Airport to DIA airport itinerary through the Expedia Trips portal and check the ticket conditions and rules to see if you can make changes. If you booked your fare in the last 24 hours, some airlines will let you cancel without charge and organize new flights. If you booked more than 24 hours ago, connect with us via our Customer Service portal to find out your options.
Denver nearby Airports

Fort Collins

Buffalo to Fort Collins-Loveland Municipal
$362.33
*Available to One Key members.