Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

BUF - DEN

Find cheap flights from Buffalo to Denver from C$ 149

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Denver departing on 31/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 24/5
Fri 31/5

Search hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Denver.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Denver.
In the last 7 days, travellers have searched 44,632,927 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap flight deals from Buffalo to Denver (BUF-DEN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:08 a.m. - 1:07 p.m.BUF-DEN
3h 59mdirect
12:55 p.m. - 6:02 p.m.DEN-BUF
3h 07mdirect
C$ 163Frontier
Find Deal
Fri, 10 May - Mon, 13 May
11:08 a.m. - 1:07 p.m.BUF-DEN
3h 59mdirect
9:15 a.m. - 7:23 p.m.DEN-BUF
8h 08m1 stop
C$ 218Frontier
Find Deal
Fri, 10 May - Mon, 13 May
5:52 p.m. - 7:38 p.m.BUF-DEN
3h 46mdirect
11:39 a.m. - 4:52 p.m.DEN-BUF
3h 13mdirect
C$ 245Frontier
Find Deal
Wed, 5 Jun - Wed, 12 Jun
12:54 p.m. - 9:25 a.m.BUF-DEN
22h 31m1 stop
5:10 p.m. - 1:44 p.m.DEN-BUF
18h 34m1 stop
C$ 294Sun Country Air
Find Deal
Sun, 16 Jun - Sat, 22 Jun
4:36 p.m. - 10:28 p.m.BUF-DEN
7h 52m1 stop
12:32 p.m. - 11:03 p.m.DEN-BUF
8h 31m1 stop
C$ 296American Airlines
Find Deal
Wed, 5 Jun - Wed, 12 Jun
7:11 p.m. - 12:28 a.m.BUF-DEN
7h 17m1 stop
11:59 p.m. - 10:30 a.m.DEN-BUF
8h 31m1 stop
C$ 298Delta
Find Deal
Fri, 7 Jun - Mon, 10 Jun
7:25 p.m. - 11:01 p.m.BUF-DEN
5h 36m1 stop
12:55 a.m. - 8:49 a.m.DEN-BUF
5h 54m1 stop
C$ 339Delta
Find Deal
Tue, 13 Aug - Thu, 15 Aug
5:26 p.m. - 11:56 p.m.BUF-DEN
8h 30m2 stops
11:59 p.m. - 9:47 a.m.DEN-BUF
7h 48m1 stop
C$ 430American Airlines
Find Deal
Fri, 10 May - Mon, 13 May
7:59 p.m. - 11:59 p.m.BUF-DEN
6h 00m1 stop
7:50 a.m. - 4:54 p.m.DEN-BUF
7h 04m1 stop
C$ 531United Airlines
Find Deal
Wed, 8 May - Sun, 12 May
5:55 p.m. - 11:19 p.m.BUF-DEN
7h 24m1 stop
11:59 p.m. - 11:21 p.m.DEN-BUF
21h 22m2 stops
C$ 642United Airlines
Find Deal
Fri, 17 May - Sat, 25 May

Flights from Buffalo to Denver - Travel Insights & Trends

Get data-powered insights and trends into flights from Buffalo to Denver to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Buffalo to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Buffalo to Denver is January, where tickets cost C$ 294 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 506 and C$ 475 respectively.

How far in advance should I book a flight from Buffalo to Denver?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Buffalo to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Buffalo to Denver, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 74 days before departure.

Which airlines provide the cheapest flights from Buffalo to Denver?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Buffalo to Denver found on KAYAK was with Delta for C$ 149. Frontier proposed a round-trip connection from C$ 163 and Sun Country Air from C$ 294.

Which airlines fly direct between Buffalo and Denver?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Buffalo to Denver.
There are 2 airlines that fly direct from Buffalo to Denver. They are Frontier and Southwest. The cheapest airline for this route is Frontier, with the best deal found costing C$ 161. On average, the best prices for this route can be found at Frontier.

How many flights are there between Buffalo and Denver per day?

Each day, there are between 1 and 3 nonstop flights that take off from Buffalo and land in Denver, with an average flight time of 3h 41m. The most common departure time is 11:00 a.m. and most flights take off in the morning. Each week, there are 14 flights. The most frequent day of departure is Monday, when 21% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Buffalo and Denver?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Buffalo to Denver take?

Direct flights take on average 3h 28m to travel the 3,509 km between Buffalo and Denver.

What’s the earliest departure time from Buffalo to Denver?

Early birds can take the earliest flight from Buffalo at 10:35 am and will be landing in Denver at 12:05 pm.

What’s the latest departure time from Buffalo to Denver?

If you prefer to fly at night, the latest flight from Buffalo to Denver jets off at 10:56 pm and lands at 12:52 am.

Good to know

Low season

November

High season

August

Cheapest flight

C$ 149
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flight from Buffalo to Denver

When to book flights from Buffalo to Denver

Are your dates flexible? Find out the best times to travel from Buffalo to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to Denver

  • Where can I relax after arriving in Denver?

    Denver airport features several lounges where you can relax and unwind upon arrival. Some of the lounges are owned by different airlines, while others are owned by DEN airport. For the airline-owned lounges, you need to be a member of the airline or have special access to the lounge. You can enjoy a relaxation moment by visiting any spas available at the airport.

  • Can mothers nurse children at DEN?

    DEN airport features nursing rooms where mothers can nurse children comfortably. The nursing rooms are strategically located at the post-security center. The rooms are available on a 24/7 basis. The comfortable seats mitigate any strains while nursing your baby, not forgetting the wheelchair accessibility of the nursing rooms.

  • Are there complimentary services at BUF?

    Yes, there are several complimentary services at Buffalo airport which include locksmith services, jump-starting vehicle services, driving directions, and flat tire assistance, among others. The complimentary services are offered by different providers.

  • Can I charge my electric vehicle at BUF?

    Yes, BUF airport features different charging stations. There are three charging stations strategically located on Level 1. The electric vehicle charging spots are based on availability. It is advisable to check whether your electric vehicle is compatible with the chargers available. To access the charging spots, your car should be parked.

  • What is the cheapest flight from Buffalo to Denver?

    In the last 3 days, the lowest price for a flight from Buffalo to Denver was C$ 109 for a one-way ticket and C$ 119 for a round-trip.

  • Which airports will I be using when flying from Buffalo to Denver?

    Buffalo airport is called Buffalo and the only airport in Denver is Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Buffalo to Denver?

    All the following airlines offer inflight Wi-Fi service on the Buffalo to Denver flight route: American Airlines, JetBlue, Air Canada, Delta, Sun Country Air, and United Airlines.

  • Which aircraft models fly most regularly from Buffalo to Denver?

    The Airbus A320neo is the aircraft model that flies most regularly on the Buffalo to Denver flight route.

  • On which days can I fly direct from Buffalo to Denver?

    There are direct flights from Buffalo to Denver on a daily basis.

  • Which is the best airline for flights from Buffalo to Denver, Delta or JetBlue?

    The two airlines most popular with KAYAK users for flights from Buffalo to Denver are Delta and JetBlue. With an average price for the route of C$ 336 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of C$ 359 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Buffalo to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Buffalo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Buffalo to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 97 or less one-way and C$ 232 or less round-trip.
  • The wide array of parking lots at Buffalo Niagara International Airport (BUF) gives you the safety assurance of your parked vehicle while catching your flight to Denver. The parking lots are close to the terminal, which will ease your navigation in and out of the airport. There are different sign colors in the parking lots to distinguish the different types of parking. There are green signs representing preferred lots, red signs for hourly and daily lots, orange signs for long-term lots, and blue signs for economy parking lots.
  • Safety is paramount at BUF; hence anyone entering the premises must undergo thorough security checks. The checks are done to ensure nobody enters the airport premises with an explosive device or a weapon. For a smooth process, it is advisable to cooperate with the security personnel. If possible, arrive 2 or 3h before your flight.
  • At BUF airport, you can stream your favorite movies, hold video conferencing, or browse while waiting for your flight due to the free Wi-Fi connectivity available at the airport. Getting online is seamless as you only need to select the BUF free Wi-Fi network, launch your browser, and sign up for a Wi-Fi account to enjoy unlimited Internet access before catching your flight.
  • If your device’s battery runs low, there are charging poles in gates 4, 5, 7, 9, 10, 16, 18, 23, and 25. The lounge seating area features iPad charging arms. The BUF charging spots are available on a first-come, first-served basis.
  • Denver International Airport (DEN) authorities prohibit smoking on the premises. However, there are designated smoking spots located at the Jeppesen terminal. Smoking after clearing with the security and proceeding to your gate is prohibited.
See more tips

Prefer to fly non-stop from Buffalo to Denver?

Find which airlines fly direct from Buffalo to Denver Intl, which days they fly and book direct flights.

Nonstop departures

Buffalo to Denver Intl

Monday

Frontier,Southwest

Frontier,Southwest

Tuesday

Southwest

Southwest

Wednesday

Frontier,Southwest

Frontier,Southwest

Thursday

Southwest

Southwest

Friday

Frontier,Southwest

Frontier,Southwest

Saturday

Frontier,Southwest

Frontier,Southwest

Sunday

Southwest

Southwest

See more nonstop flights

Nonstop returns

Denver Intl to Buffalo

Monday

Frontier,Southwest

Frontier,Southwest

Tuesday

Southwest

Southwest

Wednesday

Frontier,Southwest

Frontier,Southwest

Thursday

Southwest

Southwest

Friday

Frontier,Southwest

Frontier,Southwest

Saturday

Frontier,Southwest

Frontier,Southwest

Sunday

Southwest

Southwest

See more nonstop flights
See more nonstop flights

Top 5 airlines serving from Buffalo to Denver

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.8
Endeavor AirlinesOverall score based on 4 reviews
8.5food
9.5crew
9.5comfort
7.0entertainment
9.5boarding
Airline reviews
Pros: "seat space was great and I was lucky enough to have medium size passenger next to me :-)"
Cons: "Can't really think of anything . . . my expectations were exceeded"
8.6 ExcellentIllan, Jun. 2019YYZ - JFK
Read more about Endeavor Airlines reviews
Pros: "seat space was great and I was lucky enough to have medium size passenger next to me :-)"
Cons: "Can't really think of anything . . . my expectations were exceeded"

Seat back monitors and outlets were dead and not working.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

The flight was delayed but we got to our final destination.

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

We just spent $6000 on our first trip since pre COVID and we were stranded on the runway of our departing airport for 2 hours and 15 minutes while our layover was only an hour and a half. We were told by the pilot we were next for de-icing and then got bumped by 3 other planes. Pilot went on to say they only had one guy working the de-icing where they usually have at least 2. In Rochester. In the heart of winter. Someone missed a step and should be fired. I'm not done.

Everything went well with the flight. But one of the flight attendants had on inappropriate pants. She had on an old worn out pair of sweat pants. The back seam was unrivaled and should not have been worn for work. If I had not seen her in the airport with the standard type of luggage, I certainly would not have thought she was working for Delta. Not a good look at all for representation.

Great!! I haven’t had a bad experience with them.

The plane was one hour late cause they were doing some reparations with us on the plane no mention I was in the first seat and the door was open the entire time with 8 degrees! The plane was totally dirty no mention old ! The staff was nice but no put together, the attention to details and passenger experience is missing and i always travel first !!! Is better the lounge than the plane! KLM/air France every details is taken care maybe you need a creative creator or experience client need asap was terrible and not memorable for the price that I payed very dissatisfied

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Crew is way too many times on the intercom re explaining the same thing

Amazing comfortable chairs great snacks super friendly staff pilots did excellent job. Smooth sailing all the way. Definitely be flying United more.

We waited too long to get water while the plane was on the Tarmac awaiting de-icing.

The plane was delayed coming in and on the tarmac. I was coming from another flight so it made for a very long day. The stewardess kept trying to slam the overhead bins closed and I was worried that she had damaged my new luggage. They ran out of snacks and lccdsddd me a hummus box which was nice. It took them a very long time to pick up the garbage so I could not go to the washroom and had little time. To prepare for disbarment. The TV system was hard to control from the armrest and picture wasn’t clear. The crew did apologize several times for the lateness. It took the Denver airport an unusually long time to de-ice the plane.

By in large it was a good experience. The flight crew was great and that's the most important to me. Boarding was fine.

It was fine. Everything ran on time, crew was great.

Staff friendly and app worked really well. Modest delays were frustrating

Because I can’t stand very long in one place, I was allowed to reword.

The flight was excellent, provided that we had inclement weather. We departed earlier than scheduled and arrived early. There was a little turbulence, but nothing to be worried about.

pleased with overall experienced, but seats in coach are tight.

Don't often sit in 1st class. Our experience was great.

The 2 hour delay was frustrating but our crew did a great job getting us out quickly and keeping communication especially with the people who had connecting flights

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

It was right on time and crew were very courteous

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Flight to Phoenix was delayed 1 hour and was not weather related. Flight Denver was delayed 2.5 hours and again was not weather related as the plane came from San Francisco.

Our original flight was delayed and we almost missed our layover. Fortunately they delayed the second flight as well due to the number of people being on both flights so we got lucky. But it was due to mechanical issues which was frustrating.

Not have to pay for every single item to take a flight. Seating and delays sucked.

Terrible. Seats are bad and the baggage policy is inconsistent

Everything was good, and most importantly on time. They have been extremely tardy in some of my flights

They lost my baggage on my connection flight, it’s been 24 hours since I put my claim in and still no update on my bags.

It’s a cheap airline. I wish they had better seats.

The only issues had were outside of Frontier’s control or weren’t expected. It was a two hour flight they completed fast. We landed almost an hour ahead of schedule. The issues with no entertainment or food weren’t issues since there was no expectations. The issue of the loud or crying babies was outside of frontiers control.

Seats are cramped and very uncomfortable. You have to pay for everything and it is too expensive.

Smooth process and flight. My favorite kind. Uneventful and on-time!

Xmas Day- Flights were on time for departure and arrival, baggage check in and boarding process were hassle free, baggage also arrived without any delay. Satisfied customer on this journey.

It’s Frontier so they’d charge you for the air you breath if they can work out how but it was on time.

Book cheap flights from Buffalo to Denver

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Buffalo to Denver found on KAYAK in the last 72 hours.
31/7Wed
1 stopDelta
7h 15mBUF-DEN
C$ 149
12/7Fri
1 stopSun Country Air
21h 29mBUF-DEN
C$ 161
26/5Sun
1 stopJetBlue
9h 13mBUF-DEN
C$ 186
16/7Tue
1 stopDelta
7h 15mBUF-DEN
C$ 190

Search by stops

Search by airline

Search by price

Last minute flights from Buffalo to Denver

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Buffalo to Denver that are departing in the next 10 days.
29/4Mon
multi-stopDelta
5h 10mBUF-DEN
2/5Thu
multi-stopDelta
5h 54mDEN-BUF
C$ 608
29/4Mon
multi-stopDelta
8h 48mBUF-DEN
29/4Mon
multi-stopDelta
5h 54mDEN-BUF
C$ 692
29/4Mon
multi-stopDelta
7h 20mBUF-DEN
2/5Thu
multi-stopDelta
5h 54mDEN-BUF
C$ 697
25/4Thu
multi-stopDelta
5h 10mBUF-DEN
26/4Fri
multi-stopDelta
8h 14mDEN-BUF
C$ 785

Search by stops

Search by airline

Search by price

Buffalo - Denver Flights

Departure:

Buffalo (BUF)United States

Destination:

Denver (DEN)United States

Return flight deals:

Denver - Buffalo

Cabin classes:

C$ 171

Browse origins:

  • Flights » 
  • Buffalo

Browse destinations:

  • Flights » 
  • Denver