DEN - BUF

C$ 211 Find Cheap Flights from Denver to Buffalo – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 385
Typical prices: C$ 400-C$ 731
Frontier
Mon 15/10Fri 19/10
DEN - BUF • 1 stop
Cheapest direct flights
C$ 392
Typical prices: C$ 484-C$ 778
United Airlines
Wed 14/11Sat 17/11
DEN - BUF • Direct
Direct flights
You can fly direct with United Airlines and Southwest. Average duration is 3h 08m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 64% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 365 (round-trip)
Shortest trip • 5h 21m (one-way)
Insights
Insights
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We hope you enjoy your trip to Buffalo!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Denver to Buffalo (DEN-BUF)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Buffalo

Thu, 15 Oct - Mon, 19 Oct
Frontier Logo
6:57 p.m. - 12:59 p.m.DEN  Denver Intl-BUF Buffalo
16h 02m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
1:44 p.m. - 8:06 a.m.BUF  Buffalo-DEN Denver Intl
20h 22m1 stop Atlanta Hartsfield-Jackson
C$ 385Frontier
Sat, 14 Nov - Tue, 17 Nov
United Airlines Logo
5:25 p.m. - 10:33 p.m.DEN  Denver Intl-BUF Buffalo
3h 08mdirect
United Airlines Logo
8:50 a.m. - 10:35 a.m.BUF  Buffalo-DEN Denver Intl
3h 45mdirect
C$ 392United Airlines
Sat, 14 Nov - Tue, 17 Nov
United Airlines Logo
1:25 p.m. - 8:51 p.m.DEN  Denver Intl-BUF Buffalo
5h 26m1 stop Chicago O'Hare Intl
United Airlines Logo
8:50 a.m. - 10:35 a.m.BUF  Buffalo-DEN Denver Intl
3h 45mdirect
C$ 406United Airlines
Sat, 14 Nov - Tue, 17 Nov
United Airlines Logo
1:25 p.m. - 8:51 p.m.DEN  Denver Intl-BUF Buffalo
5h 26m1 stop Chicago O'Hare Intl
United Airlines Logo
5:58 p.m. - 9:48 p.m.BUF  Buffalo-DEN Denver Intl
5h 50m1 stop Chicago O'Hare Intl
C$ 418United Airlines
Sat, 10 Oct - Wed, 14 Oct
United Airlines Logo
5:31 p.m. - 10:43 p.m.DEN  Denver Intl-BUF Buffalo
3h 12mdirect
United Airlines Logo
5:45 p.m. - 11:54 p.m.BUF  Buffalo-DEN Denver Intl
8h 09m1 stop Chicago O'Hare Intl
C$ 435United Airlines
Sat, 10 Oct - Tue, 13 Oct
Delta Logo
4:06 p.m. - 10:38 p.m.DEN  Denver Intl-BUF Buffalo
4h 32m1 stop Detroit Metropolitan Wayne County
Delta Logo
2:10 p.m. - 8:42 p.m.BUF  Buffalo-DEN Denver Intl
8h 32m1 stop New York LaGuardia
C$ 449Delta
Thu, 15 Oct - Sat, 24 Oct
United Airlines Logo
5:31 p.m. - 10:43 p.m.DEN  Denver Intl-BUF Buffalo
3h 12mdirect
United Airlines Logo
8:45 a.m. - 10:22 a.m.BUF  Buffalo-DEN Denver Intl
3h 37mdirect
C$ 456United Airlines
Sat, 14 Nov - Tue, 17 Nov
Southwest Logo
7:30 a.m. - 4:00 p.m.DEN  Denver Intl-BUF Buffalo
6h 30m2 stops Kansas City Nashville Intl
Southwest Logo
5:55 a.m. - 1:35 p.m.BUF  Buffalo-DEN Denver Intl
9h 40m2 stops Baltimore/Washington Dallas Love Field
C$ 464Southwest
Wed, 18 Nov - Mon, 23 Nov
United Airlines Logo
5:25 p.m. - 10:33 p.m.DEN  Denver Intl-BUF Buffalo
3h 08mdirect
United Airlines Logo
6:00 a.m. - 12:12 p.m.BUF  Buffalo-DEN Denver Intl
8h 12m1 stop Newark
C$ 467United Airlines
Thu, 15 Oct - Sat, 24 Oct
United Airlines Logo
6:00 a.m. - 2:23 p.m.DEN  Denver Intl-BUF Buffalo
6h 23m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
8:45 a.m. - 10:22 a.m.BUF  Buffalo-DEN Denver Intl
3h 37mdirect
C$ 470United Airlines
Booking Insights

Price, demand, and travel trends for Denver to Buffalo flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Denver to Buffalo with more confidence.

How much is a round-trip flight from Denver to Buffalo?

Round-trip flights from Denver to Buffalo start at C$ 385. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 400 to C$ 731. The lowest price found in the past 5 days was C$ 385 on Frontier.

What's the cheapest day of the week to fly from Denver to Buffalo?

Friday is the cheapest day of the week to fly from Denver to Buffalo and is 21% cheaper than the average day. Monday is the most expensive day with flight prices 19% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • February is the cheapest month to fly from Denver to Buffalo at C$ 388 round-trip.
  • July (C$ 725) and June (C$ 686) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 87% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Denver to Buffalo the cheapest?

Flights from Denver to Buffalo are cheapest 26 weeks before departure. Booking in this window typically costs about 64% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Denver to Buffalo

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Key details for Denver to Buffalo flights

Low season

February

Cheapest flight

C$ 211
Best time to beat the crowds (33% less expensive on average)
Most popular time to fly (19% more expensive on average)
Flights from Denver to Buffalo

When to book flights from Denver to Buffalo

Are your dates flexible? Find out the best times to travel from Denver to Buffalo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Denver to Buffalo flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How can I fly from DEN to BUF?

    There are major airlines flying direct and offering nonstop services along this route. Frontier and Southwest Airlines are some major airlines frequently operating between DEN and BUF nonstop. However, if you are traveling on a budget and want to save money, consider booking the one-stop option flights such as Delta, American and United Airlines, usually with layovers at multiple airports, including LAS, ORD and MSP.

  • Is Denver International Airport pet friendly?

    Yes, pets are welcome at Denver International Airport. There are several approved pet relief sites there. As a result, passengers traveling with dogs can benefit from these services to keep their animals comfortable after a long voyage. The pet relieving facilities provide sinks, disposable trash bags, and fire hydrants. They are located in the airport's Concourses B, A, and C. However, while at the airport, keeping your furry friends on a leash is vital unless you are using the pet relief facilities.

  • Is there parking lots at Denver International Airport?

    There are various parking lots at Denver International Airport that passengers who want to leave their cars at the airport while flying out of the city can utilize. If you are looking forward to parking long-term, you can choose to use the Mt Elbert Lot, The Economy lot, and Pikes Peak Lot. However, if you want to park for 12h or less, you can opt for the short-term parking lots located in Garage East on the arrivals level. The airport also offers complimentary shuttle services picking and dropping off passengers at these garages.

  • Are there any onsite hotels at BUF?

    There are many prestigious hotels in BUF where you can stay. Buffalo Airport Hotel and Aloft Buffalo Airport Hotel are the perfect options. These hotels are conveniently located and have first-rate amenities like plenty of parking, a fitness center, and an outdoor pool. Consider spending the night in one of these hotels if your flight is early in the morning.

  • Which airlines offer extra legroom and free seat selection on Denver to Buffalo flights?

    Among airlines operating Denver to Buffalo flights:

    • United Airlines: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from Denver to Buffalo?

    2 airlines operate flights between Denver and Buffalo. The airlines offering direct flights on this route include:

    • United Airlines
    • Southwest

  • Which airports can I use when flying from Denver to Buffalo?

    Flights from Denver to Buffalo usually depart from Denver Intl (DEN) and arrive at Buffalo (BUF).

  • Which airlines include bags at no extra cost on Denver to Buffalo flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a carry-on bag and a checked bag in Economy Class
    • Southwest: a carry-on bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • Which cabin classes can I book on flights from Denver to Buffalo?

    Only Economy Class is available on flights from Denver to Buffalo.

  • How much can I save by taking a layover when flying from Denver to Buffalo?

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 365 round-trip via Atlanta Hartsfield-Jackson (ATL), compared to C$ 645 for direct.

  • What is the standard checked bag allowance on flights from Denver to Buffalo?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 56–C$ 125 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Denver to Buffalo?

    The Boeing 737-800 family is used most often on this route, operated mainly by United Airlines and Southwest. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • Which airports do connecting flights from Denver to Buffalo pass through?

    One-stop flights from Denver to Buffalo most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) – 34% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) – 15% of one-stop connections
    • Chicago Midway (MDW) – 10% of one-stop connections
    • New York John F Kennedy Intl (JFK) – 9% of one-stop connections

    Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Denver to Buffalo?

    Yes. Being flexible with your travel dates can save you up to 34% on the Denver to Buffalo route. Friday is the cheapest departure day at C$ 460 round-trip on average, while Monday is the most expensive at C$ 692, a difference of C$ 232. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from Denver to Buffalo spread across the day?

    Afternoon is the busiest departure period on Denver to Buffalo flights, with 50% leaving in that window. Evening departures account for 50%, Morning flights for 0%, and Night flights for 0%.

  • What are the earliest and latest flights from Denver to Buffalo?

    These are the earliest and latest flight times available from Denver to Buffalo:

    • Earliest: departs at 10:45 am and lands at 1:53 pm
    • Latest: departs at 5:45 pm and lands at 8:53 pm.

    The flight takes about 3h 08m.

  • How expensive are last-minute Denver to Buffalo flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 48% above the route average of C$ 578. Book 26 weeks before departure for the lowest fares.

  • How long does a flight from Denver to Buffalo take?

    A direct flight from Denver to Buffalo takes 3h 08m, covering 3,509 km.

  • Do I need a passport to fly from Denver to Buffalo?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Denver to Buffalo changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 392 to C$ 3,569. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Denver to Buffalo looking right now?

    One-way fares from Denver to Buffalo are currently lower than usual. Average one-way flight prices are about C$ 240, which is 22% below the typical average for this route.

  • How much time can I save by choosing a different layover airport when travelling from Denver to Buffalo?

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 5h 21m, compared with 5h 33m via Detroit Metropolitan Wayne County (DTW) and 6h 04m via Baltimore/Washington (BWI).

  • What is the time difference between Denver and Buffalo?

    Buffalo is 2 hours ahead of Denver (Eastern Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Buffalo Airport (BUF)?

    Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates starting from around C$ 27 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Alamo
    • Thrifty

  • How much should I expect to pay for a Denver to Buffalo flight?

    Round-trip flights from Denver to Buffalo range from C$ 400 to C$ 731, with an average of C$ 578 over the past 12 months. Anything below C$ 400 counts as a good deal.

  • Which airlines offer Wi-Fi on Denver to Buffalo flights?

    JetBlue is the only airline on the Denver to Buffalo route offering in-flight Wi-Fi. Pricing depends on fare class.

Your guide to booking Denver to Buffalo flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure instead of Monday. On this route, Friday flights average C$ 460 – about C$ 232 less than Monday (34% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 64% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Denver to Buffalo trip for February. Fares historically average C$ 388 round-trip in that month – typically C$ 338 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Atlanta Hartsfield-Jackson Airport (ATL) can be cheaper than flying direct. The cheapest layover option averages C$ 365 round-trip on this route – about C$ 280 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Buffalo Airport.
    - Aloft Buffalo Airport
    - Comfort Inn and Suites Buffalo Airport
    - TownePlace Suites by Marriott Buffalo Airport
  • The Denver International Airport's (DEN) lounges are great for unwinding and finding tranquility. They are great for breakfast if you have an early morning check-in or delayed flights. Take advantage of the comfortable chairs, showers, cuisine, variety of alcoholic beverages, and Wi-Fi. No matter which airline you are flying, they are affordable and available to all travelers.
  • If you want to access DEN from downtown Denver, approximately 25 miles away, you can choose from multiple means of transport. For example, you can opt for taxis, rideshares or airport shuttle transfers. Taxis and rideshares take approximately 30min to cover this distance. However, they are a more expensive option compared to airport shuttle transfers.
  • When flying through Buffalo International Airport (BUF), there is never a shortage of things to do to pass the time before airport transfers. BUF has several amenities at the airport, including retail, free Wi-Fi, and financial services.
  • Passengers with hidden disabilities can ask for assistance and wheelchairs in both the departure and arrival airports. You should get in touch with your airline and let them know what services you require when flying through DEN. On the other side, you should also ask for wheelchairs ahead of time to prepare for your landing at BUF.
  • Passengers traveling through BUF with infants will find at least one distinctive, exceptional baby care facility near Gate 12 on the airside. These specialized nursing rooms aid children and their mothers be comfortable after the lengthy journey. Additionally, they have a variety of amenities and artwork, including power outlets, rocking chairs and baby changing tables.

Prefer to fly direct from Denver to Buffalo?

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

Direct departures

Denver Intl to Buffalo

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more nonstop flights

Direct returns

Buffalo to Denver Intl

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more nonstop flights

More options for your flight from Denver to Buffalo

Complete your trip to Buffalo with a hotel stay or car rental