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Cheap Flights from Denver (DENA) to Buffalo Niagara (BUF)

Compare Denver to Buffalo Niagara flight deals

Find the cheapest month or even day of the year to fly to Buffalo Niagara

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Flight deals from Denver to Buffalo Niagara Airport

Looking for a cheap last-minute deal or the best return flight from Denver to Buffalo Niagara Airport? If you want to travel next month, return fares start from £174. Find the lowest prices on one-way and return tickets right here.
Buffalo.£174 per passenger.Departing Fri, 17 Apr, returning Mon, 20 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Fri, 17 Apr, arriving in Buffalo Niagara.Inbound indirect flight with Frontier Airlines, departs from Buffalo Niagara on Mon, 20 Apr, arriving in Denver International.Price includes taxes and charges.From £174, select.
Buffalo.£203 per passenger.Departing Tue, 2 Jun, returning Mon, 8 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Tue, 2 Jun, arriving in Buffalo Niagara.Inbound indirect flight with Frontier Airlines, departs from Buffalo Niagara on Mon, 8 Jun, arriving in Denver International.Price includes taxes and charges.From £203, select.
Buffalo.£230 per passenger.Departing Thu, 26 Mar, returning Mon, 30 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Thu, 26 Mar, arriving in Buffalo Niagara.Inbound indirect flight with Frontier Airlines, departs from Buffalo Niagara on Mon, 30 Mar, arriving in Denver International.Price includes taxes and charges.From £230, select.
Buffalo.£238 per passenger.Departing Mon, 3 Aug, returning Fri, 7 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Mon, 3 Aug, arriving in Buffalo Niagara.Inbound indirect flight with Delta, departs from Buffalo Niagara on Fri, 7 Aug, arriving in Denver International.Price includes taxes and charges.From £238, select.
Buffalo.£238 per passenger.Departing Fri, 29 May, returning Sun, 31 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Fri, 29 May, arriving in Buffalo Niagara.Inbound indirect flight with Delta, departs from Buffalo Niagara on Sun, 31 May, arriving in Denver International.Price includes taxes and charges.From £238, select.
Buffalo.£239 per passenger.Departing Fri, 16 Oct, returning Sun, 25 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Fri, 16 Oct, arriving in Buffalo Niagara.Inbound indirect flight with Delta, departs from Buffalo Niagara on Sun, 25 Oct, arriving in Denver International.Price includes taxes and charges.From £239, select.
Buffalo.£276 per passenger.Departing Thu, 30 Jul, returning Tue, 4 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Thu, 30 Jul, arriving in Buffalo Niagara.Inbound indirect flight with Delta, departs from Buffalo Niagara on Tue, 4 Aug, arriving in Denver International.Price includes taxes and charges.From £276, select.
Buffalo.£302 per passenger.Departing Fri, 10 Jul, returning Sun, 12 Jul.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Denver International on Fri, 10 Jul, arriving in Buffalo Niagara.Inbound indirect flight with Southwest Airlines, departs from Buffalo Niagara on Sun, 12 Jul, arriving in Denver International.Price includes taxes and charges.From £302, select.
Buffalo.£313 per passenger.Departing Thu, 16 Apr, returning Sun, 19 Apr.Return flight with United.Outbound direct flight with United departs from Denver International on Thu, 16 Apr, arriving in Buffalo Niagara.Inbound direct flight with United departs from Buffalo Niagara on Sun, 19 Apr, arriving in Denver International.Price includes taxes and charges.From £313, select.
Buffalo.£328 per passenger.Departing Fri, 5 Jun, returning Sun, 7 Jun.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Fri, 5 Jun, arriving in Buffalo Niagara.Inbound direct flight with Southwest Airlines departs from Buffalo Niagara on Sun, 7 Jun, arriving in Denver International.Price includes taxes and charges.From £328, select.
Buffalo.£328 per passenger.Departing Sun, 26 Jul, returning Wed, 29 Jul.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Sun, 26 Jul, arriving in Buffalo Niagara.Inbound direct flight with Southwest Airlines departs from Buffalo Niagara on Wed, 29 Jul, arriving in Denver International.Price includes taxes and charges.From £328, select.
Buffalo.£340 per passenger.Departing Fri, 26 Jun, returning Sun, 5 Jul.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Denver International on Fri, 26 Jun, arriving in Buffalo Niagara.Inbound indirect flight with Southwest Airlines, departs from Buffalo Niagara on Sun, 5 Jul, arriving in Denver International.Price includes taxes and charges.From £340, select.
Buffalo.£343 per passenger.Departing Mon, 30 Mar, returning Wed, 1 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Mon, 30 Mar, arriving in Buffalo Niagara.Inbound indirect flight with Delta, departs from Buffalo Niagara on Wed, 1 Apr, arriving in Denver International.Price includes taxes and charges.From £343, select.
Buffalo.£344 per passenger.Departing Fri, 29 May, returning Sun, 31 May.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 29 May, arriving in Buffalo Niagara.Inbound direct flight with United departs from Buffalo Niagara on Sun, 31 May, arriving in Denver International.Price includes taxes and charges.From £344, select.
Buffalo.£361 per passenger.Departing Fri, 16 Oct, returning Sun, 25 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Fri, 16 Oct, arriving in Buffalo Niagara.Inbound direct flight with Southwest Airlines departs from Buffalo Niagara on Sun, 25 Oct, arriving in Denver International.Price includes taxes and charges.From £361, select.
Buffalo.£419 per passenger.Departing Fri, 26 Jun, returning Sun, 5 Jul.Return flight with United.Outbound direct flight with United departs from Denver International on Fri, 26 Jun, arriving in Buffalo Niagara.Inbound direct flight with United departs from Buffalo Niagara on Sun, 5 Jul, arriving in Denver International.Price includes taxes and charges.From £419, select.

Find the cheapest month to fly from Denver to Buffalo Niagara

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver to Buffalo Niagara flights are currently cheapest in April.
Mar
from £230
Apr
from £174
May
from £238
Jun
from £203
Jul
from £302
Aug
from £238
Sep
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Oct
from £239
Nov
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Dec
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Jan
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Feb
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Direct flights from Denver to Buffalo Niagara

Denver to Buffalo Niagara: Alternative routes

Compare routes from Denver to Buffalo below. You may find an airport to fly into that's cheaper, faster, or easier than Buffalo Niagara.

Buffalo Niagara

8 miles from central Buffalo
ClosestCheapest
from £174
Search flights

Niagara Falls

15 miles from central Buffalo
from £350
Search flights

Jamestown

54 miles from central Buffalo
Search flights

Denver to Buffalo: Flight information

The things to know before you go.
Cheapest flight found£174
Cheapest month to flyApril
Average flight time3 hrs, 10 mins
Most popular airlineUnited
Average flights per week13

Check out these Buffalo hotels

Ready to plan your stay? Other travellers rate these Buffalo hotels for cleanliness, service and location.
InnBuffalo Off Elmwood
2.34 miles from city centre
£119
Per night
Buffalo Harmony House
1.02 miles from city centre
£227
Per night
The Edward Hotel
2.32 miles from city centre
£100
Per night
InnBuffalo Off Elmwood
2.34 miles from city centre
£119
Per night
Buffalo Harmony House
1.02 miles from city centre
£227
Per night
The Edward Hotel
2.32 miles from city centre
£100
Per night
Explore top-rated hotels

Finding cheap flights from Denver to Buffalo Niagara: Frequently asked questions

The best price we found for a return flight from Denver to Buffalo Niagara is £174. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 10 minutes is the average flight time from Denver to Buffalo Niagara.
United and Southwest Airlines fly direct from Denver to Buffalo Niagara.
As of March 2026, there are 13 flights per week flying from Denver to Buffalo Niagara.
The cheapest month to fly from Denver to Buffalo Niagara is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to Buffalo Niagara Airport on Friday, 17 April 2026.
Yes – the average flight time is 3 hours and 10 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Buffalo Niagara but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Buffalo is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Denver to Buffalo Niagara International Airport (BUF): What you need to know

  • Denver's main airport is Denver International Airport (DEN). Check out your options for departing from here when searching for your flights from Denver to Buffalo Niagara International Airport (BUF).

  • Around 3 hours 10 minutes is the typical travel time on a direct Denver to Buffalo Niagara International Airport flight.

  • Buffalo is two hours ahead of Denver. Buffalo Niagara International Airport is located in Buffalo, which is in the UTC-5 timezone.

  • You can pick from 8 direct flights a week between Denver International Airport (DEN) and Buffalo Niagara International Airport (BUF). This is the busiest route, with Southwest Airlines offering a 7:55am departure from DEN to BUF.

  • Give yourself plenty of time to catch your flight from Denver to BUF. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

  • October is a busy time to fly out. If you're heading away then or around a major holiday like Thanksgiving or Christmas, turn up even earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international journeys.

Airports in Denver

Denver International Airport (DEN)

  • You can jump on a direct flight from Denver to Buffalo Niagara International Airport (BUF) departing from Denver International Airport (DEN).

  • Leading airlines that offer direct flights from Denver to Buffalo Niagara International Airport leaving from DEN include:

  • The airline most travellers choose when flying between DEN and BUF is United.

  • Among carriers on this route, Frontier Airlines has the highest percentage of on-time landings.

  • DEN is around 40 kms (25 miles) from central Denver. If you're ride-sharing, catching a taxi or driving from the centre, it'll take 35 minutes or so to get there, depending on traffic. If you're using public transport, expect the travel time to be around 35 minutes.

  • Booking a night at a hotel can take the stress out of getting to the airport on time. If you need a place to stay before your flight from Denver to Buffalo Niagara International Airport, consider Baymont by Wyndham Denver International Airport. It's a short ride from Denver International Airport.

  • 80% of flights departing from Denver International Airport land at their destination as planned. Given its strong on-time stats, you're unlikely to face delays when jetting out of DEN.

  • DEN's address is 8500 Pena Boulevard.

About Buffalo Niagara International Airport (BUF)

  • The last thing you want is a long journey to your hotel if you're getting in late on a flight from Denver to Buffalo Niagara International Airport. Get comfy at one of these accommodation options near BUF instead:

  • Pick up a Buffalo Niagara International Airport rental car and explore Buffalo and beyond with your own wheels. Dollar, Hertz and Budget are leading providers you can book with here.

  • To get the lowest price, book your vehicle around two weeks ahead of your Denver to Buffalo Niagara International Airport flight.

  • You'll find BUF at Genesee Street.

Getting from Buffalo Niagara International Airport (BUF) to central Buffalo

  • Buffalo Niagara International Airport is around 16 kms (10 miles) from the centre of Buffalo. It takes around 20 minutes or so to get to the city by car.

  • If you're travelling by public transport, expect a journey of roughly 40 minutes.

How to find the cheapest flights from Denver to Buffalo Niagara International Airport (BUF)

  • Right now, £70 is the lowest price we've found for a one-way ticket from Denver to Buffalo Niagara International Airport. The cheapest price for a return flight is £174. Remember fares may change due to demand at the time of booking.

  • Booking early is often the key to scoring a cheap flight from Denver to BUF. Fares tend to rise as seats fill up, so the closer your departure date, the more it could cost you.

  • The 'Whole month' tool will show you the cheapest Denver to Buffalo Niagara International Airport tickets across the month. It's an easy way to find a bargain if your plans aren't set in stone.

  • Finding a cheap plane ticket from Denver to BUF is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when there's a price drop.

  • Filters make it easier to snap up a deal on your flight from Denver to Buffalo Niagara International Airport. Choose the airlines, flight times and number of stops that make sense for you. Then sort the results by 'Cheapest' to find the most affordable option fast.

The best time to fly from Denver to Buffalo Niagara International Airport (BUF)

  • It's time to figure out your travel dates for your flight from Denver to Buffalo Niagara International Airport (BUF). May is when most people travel to Buffalo. If you like things a bit more low-key, think about going in September.

  • The warmest month in Buffalo is July, with temperatures ranging between 15ºC and 28ºC. Lock in your Denver to BUF plane ticket then if that's your ideal forecast.

  • If you want cooler conditions, search for a cheap ticket from Denver to Buffalo Niagara International Airport in January when temperatures are between -10ºC and 2ºC.

More about Buffalo

  • When it comes to searching for somewhere to rest your head, you'll find the best stays in Buffalo right here. Explore these options as soon as you've booked your flight from Denver to Buffalo Niagara International Airport:

  • Frank Lloyd Wright's Darwin D. Martin House Complex and Buffalo AKG Art Museum are just a couple of the popular attractions to put on your Buffalo travel itinerary. Keep the sightseeing going at Forest Lawn.

Explore more of the United States

  • Cleveland is just one of the many cities in the United States waiting to be explored after you've experienced Buffalo. Around 290 kms (180 miles) away to the southwest, top sights here include Rock & Roll Hall of Fame, Cleveland Museum of Art and Cleveland Museum of Natural History.

  • If you're interested in discovering another major stop in the United States, head for Pittsburgh, about 290 kms (180 miles) south of Buffalo. Carnegie Museum of Art, The Andy Warhol Museum and Point State Park Fountain are among the biggest draws.

Plan the rest of your trip from Denver to Buffalo

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.