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Good to Know: Cheapest and Fastest DEN - BUF Flights
Useful information for finding best airline tickets from Denver International to Buffalo Niagara International on your next trip.
Cheapest Round Trip Flight
$768
Southwest Airlines
• 1 stop
• 15h 20m
Nov 28 – Nov 29
The cheapest round trip flight from Denver to Buffalo (DEN-BUF-DEN) is currently $768
Cheapest One way Flight
$151
United Airlines
• 1 stop
• 27h 20m
Oct 05
The cheapest one way flight from Denver to Buffalo (DEN-BUF) is currently $151
Cheapest Direct Flight
$313
Southwest Airlines
• nonstop
• 5h
Nov 25
The cheapest nonstop flight from Denver to Buffalo (DEN-BUF) is currently $313
Fastest Flight
4h 15m
The fastest nonstop flight from Denver to Buffalo (DEN-BUF) takes 4h 15m
Top Airlines Flying from Denver to Buffalo
Latest Flight Deals from Denver (DEN) to Buffalo (BUF)
Compare and book low fare round-trip air tickets from Denver to Buffalo. Ideal for travelers with confirmed return itineraries.
Nov 28 - Nov 29, Economy
Denver → Buffalo
15h 20m
5:00 AM - 4:20 PM • 1 stop
Denver → Buffalo
22h 30m
8:15 PM - 8:05 AM • 1 stop
Southwest Airlines
Nov 28 - Nov 29, Economy
Denver → Buffalo
7h 35m
2:50 PM - 9:45 PM • 1 stop
Denver → Buffalo
22h 30m
8:15 PM - 8:05 AM • 1 stop
Southwest Airlines
Nov 28 - Nov 29, Economy
Denver → Buffalo
19h 10m
10:35 AM - 12:25 AM • 2 stops
Denver → Buffalo
22h 30m
8:15 PM - 8:05 AM • 1 stop
Southwest Airlines
Nov 28 - Nov 29, Economy
Denver → Buffalo
7h 10m
8:45 AM - 3:15 PM • 1 stop
Denver → Buffalo
27h 20m
9:55 PM - 12:35 PM • 2 stops
Southwest Airlines
Nov 28 - Nov 29, Economy
Denver → Buffalo
5h 8m
5:25 PM - 10:33 PM • nonstop
Denver → Buffalo
10h 8m
9:45 PM - 1:53 AM • 1 stop
United Airlines
Explore competitive one-way airfare options for DEN - BUF flights. Best suited for flexible or open-ended travel plans.
Flying to Buffalo soon? We've surfaced some of the most affordable last-minute flights from Denver to Buffalo, ideal for urgent plans or spontaneous trips.
Looking for the fastest way to Buffalo? These direct flight options from DEN to BUF offer both convenience and value—no layovers, just straight to your destination.
Nov 25 - Nov 27, Economy
Denver → Buffalo
5h
12:45 PM - 5:45 PM • nonstop
Denver → Buffalo
5h 40m
4:55 PM - 6:35 PM • nonstop
Southwest Airlines
Nov 25 - Nov 27, Economy
Denver → Buffalo
5h 8m
5:25 PM - 10:33 PM • nonstop
Denver → Buffalo
5h 45m
8:50 AM - 10:35 AM • nonstop
United Airlines
Nov 28 - Nov 29, Economy
Denver → Buffalo
5h 8m
5:25 PM - 10:33 PM • nonstop
Denver → Buffalo
5h 45m
8:50 AM - 10:35 AM • nonstop
United Airlines
FAQs on Denver to Buffalo Flights
What are the airports in Denver?
DEN
What’s the most popular airline flying from DEN to BUF?
The most popular airline flying from Denver to Buffalo are
Can I fly from DEN to BUF non-stop?
Yes, you can fly DEN to BUF non-stop on
Which airlines fly nonstop between Denver and Buffalo?
The non-stop flights between Denver and Buffalo are .
What’s the earliest departure time from DEN to BUF Airport?
The earliest flight leaves DEN at 5:00 am and lands in BUF - Buffalo Niagara International
What are the airports in Buffalo?
BUF
Can I make changes to my Denver to Buffalo flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DEN to BUF?
Read the fare rules of the Denver to Buffalo air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Denver and Buffalo?
operate flights between Denver and Buffalo
How long does a flight from Denver to Buffalo take?
It takes approximately 3 hour to fly non-stop from DEN to BUF, which is 1358.99 miles by air.
Which airlines provide the cheapest flights from Denver (DEN) to Buffalo (BUF) ?
In the past couple of days, the cheapest tickets to BUF from DEN were found on UA : USD 409
Do I need a passport to fly between DEN and BUF?
No
What’s the latest departure time from DEN to BUF ?
The last flight leaves DEN at 5:25 pm
Denver (DEN) to Buffalo (BUF): Airport Information
| Origin Airport | Denver International , Denver, US |
| Destination Airport | Buffalo Niagara International , Buffalo, US |
| Distance | 1359 miles |
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