Find Cheap Flights from Buffalo to Denver International (BUF - DEN)

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Sat 12/16
Sat 12/23
Any month
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Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
9%
expected price increase
Average Price:
$379
(avg. price over the last 2 weeks)
Good Deal:
$290
or less (round trip)

When to Book Flights from Buffalo to Denver International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $289 or less.
The cheapest flight from Buffalo to Denver International was found 33 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is January.
Morning departure is around 2% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Buffalo to Denver International Flights

How long does a flight from Buffalo to Denver International take?
An average nonstop flight takes 3h 50m, covering a distance of 1356 miles.
Which airlines provide the cheapest flights from Buffalo to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($201), Multiple Airlines ($255) and Delta ($375).
Do I need a passport to fly between Buffalo and Denver International?
No.
What’s the cheapest day of the week to fly Buffalo to Denver International?
For Buffalo to Denver International, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Denver International back to Buffalo, the best deals are generally found on Wednesday, with Thursday being the most expensive.

Book cheap flights from Buffalo to Denver International (round-trip)

Airports
Origin
Buffalo
$201
only
$201
Destination
Denver
$201
only
$201
Wed, Jun 20
BUF
DEN
3h 50m
Wed, Jun 27
DEN
BUF
3h 15m
Trip: 8 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33270 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
LAS
Good 6.3

They gave me and someone else the same seat luckily it wasn’t a packed flight and was able to move to a row that was empty

MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

ATL
DEN
Mediocre 3.6

The price was good, and it was a non stop flight.

The crew was rude and the seats didn't recline.

AUS
LAS
Excellent 8.0

Efficient

N/a

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

Wed, Apr 11
BUF
DEN
3h 55m
Sun, Apr 15
DEN
BUF
7h 19m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Dec 24
BUF
DEN
6h 05m
Fri, Dec 29
DEN
BUF
7h 10m
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14257 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
JFK
ATL
Excellent 8.3

We had the best flight attendant ever! Her name was Sharon on Eandeavor / Delta Cnx, and she made the experience the best flight I've experienced. Thanks Sharon for being awesome!

window seat in back didn't have window

SEA
LAX
Okay 5.3

Mu seat!

My baggage took for to long to arrive

LGA
ORD
Excellent 10.0

Flight was on time. Boarded quickly with no fuss.

BWI
JFK
Mediocre 3.6

There was a change in our flight. According to Delta you didn't confirm every leg of our flight and the plane was over booked.

JFK
MIA
Okay 5.3

Some of the flight attendants were rude and not very welcoming at all.

Wed, Jun 20
BUF
DEN
3h 50m
Fri, Jun 22
DEN
BUF
3h 15m
Trip: 3 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33270 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MSY
PVD
Excellent 8.0

The price!

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

Tue, Jan 23
BUF
DEN
10h 43m
Sun, Jan 28
DEN
BUF
6h 31m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 13
BUF
DEN
10h 54m
Wed, Feb 14
DEN
BUF
20h 25m
Trip: 2 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33270 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

Tue, Feb 13
BUF
DEN
10h 54m
Wed, Feb 14
DEN
BUF
7h 30m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Feb 8
BUF
DEN
10h 54m
Sun, Feb 11
DEN
BUF
6h 31m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 16
BUF
DEN
9h 37m
Fri, Jan 19
DEN
BUF
9h 37m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33270 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

AUS
LAS
Excellent 8.0

Efficient

N/a

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

Tue, Mar 20
BUF
DEN
11h 37m
Tue, Apr 3
DEN
BUF
7h 56m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
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*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.