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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
$219
Frontier Airlines
• 1 stop
• 48h 39m
Sep 21 – Sep 27
The cheapest round trip flight from Denver to Buffalo (DEN-BUF-DEN) is currently $219
Cheapest Direct Flight
$284
Southwest Airlines
• nonstop
• 5h 10m
Sep 21
The cheapest nonstop flight from Denver to Buffalo (DEN-BUF) is currently $284
Fastest Flight
5h 10m
The fastest nonstop flight from Denver to Buffalo (DEN-BUF) takes 5h 10m
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.
Sep 21 - Sep 27, Economy
Denver → Buffalo
48h 39m
10:30 AM - 5:49 PM • 1 stop
Denver → Buffalo
34h 8m
12:49 PM - 7:37 AM • 1 stop
Frontier Airlines
Sep 21 - Sep 27, Economy
Denver → Buffalo
10h 5m
12:50 PM - 8:55 PM • 1 stop
Denver → Buffalo
5h 25m
4:30 PM - 5:55 PM • nonstop
Southwest Airlines
Sep 21 - Sep 27, Economy
Denver → Buffalo
11h 50m
11:45 AM - 8:55 PM • 2 stops
Denver → Buffalo
5h 25m
4:30 PM - 5:55 PM • nonstop
Southwest Airlines
Sep 21 - Sep 27, Economy
Denver → Buffalo
8h 40m
11:05 AM - 6:25 PM • 1 stop
Denver → Buffalo
12h 30m
12:20 PM - 6:10 PM • 1 stop
Southwest Airlines
Sep 21 - Sep 27, Economy
Denver → Buffalo
5h 10m
4:05 PM - 9:15 PM • nonstop
Denver → Buffalo
5h 25m
4:30 PM - 5:55 PM • nonstop
Southwest Airlines
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.
Sep 21 - Sep 27, Economy
Denver → Buffalo
5h 10m
4:05 PM - 9:15 PM • nonstop
Denver → Buffalo
5h 25m
4:30 PM - 5:55 PM • nonstop
Southwest 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 10:30 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 WN : USD 284
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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