DEN - BUF

$124 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
$238
Typical prices: $318-$540
Frontier
Mon 12/3Fri 12/7
DEN - BUF • 1 stop
Cheapest non-stop
$331
Typical prices: $381-$564
Southwest
Fri 12/7Wed 12/12
DEN - BUF • Non-stop
Nonstop flights
You can fly direct with United Airlines and Southwest. Average duration is 3h 09m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 26 weeks in advance save around 65% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $275 (round-trip)
Shortest trip • 5h 30m (one-way)
Insights
Insights
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We hope you love 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

Wed, Nov 18 - Tue, Nov 24
Frontier Logo
7:10 pm - 5:52 pmDEN  Denver Intl-BUF Buffalo
20h 42m1 stop Orlando
Frontier Logo
9:20 pm - 10:13 amBUF  Buffalo-DEN Denver Intl
14h 53m1 stop Orlando
$238Frontier
Thu, Dec 3 - Mon, Dec 7
Frontier Logo
8:07 pm - 12:19 pmDEN  Denver Intl-BUF Buffalo
14h 12m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
1:15 pm - 6:29 amBUF  Buffalo-DEN Denver Intl
19h 14m1 stop Atlanta Hartsfield-Jackson
$238Frontier
Thu, Nov 19 - Thu, Nov 26
United Airlines Logo
5:25 pm - 10:33 pmDEN  Denver Intl-BUF Buffalo
3h 08mnonstop
United Airlines Logo
8:50 am - 10:35 amBUF  Buffalo-DEN Denver Intl
3h 45mnonstop
$331United Airlines
Wed, Dec 9 - Sat, Dec 12
United Airlines Logo
5:45 pm - 10:57 pmDEN  Denver Intl-BUF Buffalo
3h 12mnonstop
United Airlines Logo
8:17 am - 10:03 amBUF  Buffalo-DEN Denver Intl
3h 46mnonstop
$331United Airlines
Mon, Dec 7 - Sat, Dec 12
Southwest Logo
3:45 pm - 8:50 pmDEN  Denver Intl-BUF Buffalo
3h 05mnonstop
Southwest Logo
2:30 pm - 4:20 pmBUF  Buffalo-DEN Denver Intl
3h 50mnonstop
$331Southwest
Wed, Dec 2 - Wed, Dec 9
Southwest Logo
3:45 pm - 8:50 pmDEN  Denver Intl-BUF Buffalo
3h 05mnonstop
Southwest Logo
2:45 pm - 4:35 pmBUF  Buffalo-DEN Denver Intl
3h 50mnonstop
$331Southwest
Thu, Nov 19 - Sat, Dec 5
Delta Logo
1:06 pm - 11:59 pmDEN  Denver Intl-BUF Buffalo
8h 53m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:37 amBUF  Buffalo-DEN Denver Intl
7h 37m1 stop New York LaGuardia
$351Delta
Mon, Nov 23 - Tue, Dec 1
Delta Logo
1:06 pm - 11:59 pmDEN  Denver Intl-BUF Buffalo
8h 53m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:41 pm - 11:22 pmBUF  Buffalo-DEN Denver Intl
6h 41m1 stop Atlanta Hartsfield-Jackson
$351Delta
Mon, Nov 23 - Tue, Dec 1
American Airlines Logo
9:15 am - 6:00 pmDEN  Denver Intl-BUF Buffalo
6h 45m1 stop Chicago O'Hare Intl
American Airlines Logo
6:40 pm - 11:04 pmBUF  Buffalo-DEN Denver Intl
6h 24m1 stop Chicago O'Hare Intl
$351American Airlines
Mon, Dec 7 - Sat, Dec 12
American Airlines Logo
9:14 am - 6:09 pmDEN  Denver Intl-BUF Buffalo
6h 55m1 stop Chicago O'Hare Intl
American Airlines Logo
7:00 am - 12:23 pmBUF  Buffalo-DEN Denver Intl
7h 23m1 stop Dallas/Fort Worth
$351American 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 with more confidence.

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

Round-trip flights from Denver to Buffalo typically range from $318 to $540. The lowest price found in the past 5 days was $238, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Denver to Buffalo. It’s 12% cheaper than the average day, while Monday is the most expensive, with prices 18% higher.

What’s the cheapest month to fly from Denver to Buffalo?

•January is the cheapest month to fly from Denver to Buffalo at $256 round-trip.
•July ($520) and June ($492) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 103% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Denver to Buffalo the cheapest?

Flights from Denver to Buffalo are cheapest 26 weeks before departure. Booking in this window typically costs about 65% 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
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.

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.

Key details for Denver to Buffalo flights

Low season

February

Cheapest flight

$124
Beat the crowds with an average 42% drop in travelers.
The most popular month to fly with an average 49% increase in travelers.
One-way flight 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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 11:50 am and lands at 2:59 pm
    • Latest: departs at 5:45 pm and lands at 8:54 pm.

    The flight takes about 3h 09m.

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

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

  • How long is a flight from Denver to Buffalo?

    A nonstop flight from Denver to Buffalo takes 3h 09m, covering 1,355 miles.

  • 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.

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

    Round-trip flights from Denver to Buffalo range from $318 to $540, with an average of $436 over the past 12 months. Anything below $318 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 47% above the $436 route average. Book 26 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $275 round-trip via Atlanta Hartsfield-Jackson (ATL), compared to $482 for nonstop.

  • 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 $40–$90 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. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • 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% of flights leaving in that window. Evening departures account for 50%, morning flights for 0%, and night flights for 0%.

  • 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 $238 to $2,208. That means the highest observed fare was about 9x higher than the lowest one.

  • 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.

  • 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 $176, which is 25% below the typical average for this route.

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

    Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates averaging $82 for economy cars. Top options include:

    • Dollar
    • Budget
    • Hertz
    • Thrifty
    • Alamo

  • 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 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) - 35% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 15% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 10% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 8% of one-stop connections

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

    Yes. Flexible dates can save you up to 26% on flights from Denver to Buffalo. Thursday is the cheapest departure day at $386 round-trip on average, while Monday is the most expensive at $516, a difference of $130.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Denver to Buffalo?

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

    • United Airlines
    • Southwest

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

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 5h 30m, compared with 5h 33m via Detroit Metropolitan Wayne County (DTW) and 6h 03m 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.

  • 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 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 cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag in Economy Class class
    • JetBlue: a cabin bag in Economy Class class

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

  • 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.

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 Thursday departure and avoid flying on Monday. On this route, Thursday flights average $386, about $130 less than Monday fares (25% 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 65% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Denver to Buffalo trip for January. Fares historically average $256 round-trip in that month - typically $264 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 $275 round-trip on this route - about $207 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 direct 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 direct flights

More options for your flight from Denver to Buffalo

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