This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
11 Jan — 18 Jan1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Buffalo to Denver Intl are usually found in October or August, booked 81 days in advance, depart on a Friday or Wednesday and return on a Monday
Cheap flight deals from Buffalo to Denver
Enter your travel dates to find the best prices.
Cheapest flights from Buffalo to Denver
Explore the most affordable flight options available from Buffalo to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.
Fri 19/126:12 a.m.BUF - DEN
1 stop6h 06mDelta
Thu 25/122:30 p.m.DEN - BUF
1 stop7h 07mDelta
Deal found 9/12C$ 463
Sat 20/126:54 p.m.BUF - DEN
1 stop7h 09mDelta
Thu 25/122:30 p.m.DEN - BUF
1 stop7h 07mDelta
Deal found 9/12C$ 494
Mon 22/126:05 a.m.BUF - DEN
2 stops8h 10mSouthwest
Mon 29/125:15 a.m.DEN - BUF
1 stop6h 50mSouthwest
Deal found 10/12C$ 499
Thu 25/126:30 a.m.BUF - DEN
1 stop6h 05mUnited Airlines
Mon 29/1211:59 p.m.DEN - BUF
1 stop7h 47mUnited Airlines
Deal found 10/12C$ 534
Tue 23/128:40 p.m.BUF - DEN
1 stop5h 30mSouthwest
Fri 26/128:10 p.m.DEN - BUF
1 stop9h 45mSouthwest
Deal found 10/12C$ 596
Mon 22/126:05 a.m.BUF - DEN
2 stops8h 10mSouthwest
Fri 26/128:10 p.m.DEN - BUF
1 stop9h 45mSouthwest
Deal found 10/12C$ 604
Wed 24/121:50 p.m.BUF - DEN
2 stops8h 05mSouthwest
Fri 26/128:10 p.m.DEN - BUF
1 stop9h 45mSouthwest
Deal found 10/12C$ 634
Tue 23/126:10 a.m.BUF - DEN
1 stop5h 39mDelta
Fri 26/126:25 a.m.DEN - BUF
1 stop15h 18mDelta
Deal found 11/12C$ 688
Sat 20/128:50 p.m.BUF - DEN
1 stop5h 55mSouthwest
Fri 26/128:15 p.m.DEN - BUF
Nonstop3h 05mSouthwest
Deal found 9/12C$ 692
Best flights from Buffalo to Denver
Discover carefully curated flight deals from Buffalo to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.
Sun 18/16:03 a.m.BUF - DEN
1 stop6h 21mDelta
Thu 22/17:05 a.m.DEN - BUF
1 stop8h 49mDelta
Deal found 9/12C$ 301
Sat 24/13:35 p.m.BUF - DEN
1 stop6h 35mSouthwest
Mon 26/16:20 a.m.DEN - BUF
1 stop8h 45mSouthwest
Deal found 9/12C$ 302
Sun 11/12:49 p.m.BUF - DEN
1 stop6h 37mUnited Airlines
Tue 13/16:00 a.m.DEN - BUF
1 stop5h 24mUnited Airlines
Deal found 11/12C$ 302
Fri 27/26:35 p.m.BUF - DEN
1 stop7h 50mDelta
Wed 4/36:00 a.m.DEN - BUF
1 stop6h 56mDelta
Deal found 11/12C$ 302
Tue 13/110:45 a.m.BUF - DEN
1 stop7h 07mUnited Airlines
Sat 17/111:20 a.m.DEN - BUF
1 stop7h 09mUnited Airlines
Deal found 10/12C$ 302
Thu 26/37:35 p.m.BUF - DEN
1 stop5h 45mSouthwest
Mon 30/311:55 p.m.DEN - BUF
1 stop6h 20mSouthwest
Deal found 10/12C$ 302
Wed 27/54:57 p.m.BUF - DEN
1 stop7h 21mDelta
Mon 8/612:55 a.m.DEN - BUF
1 stop5h 28mDelta
Deal found 11/12C$ 302
Fri 23/15:50 a.m.BUF - DEN
2 stops10h 45mSouthwest
Mon 26/17:00 a.m.DEN - BUF
1 stop6h 10mSouthwest
Deal found 11/12C$ 309
Thu 14/54:57 p.m.BUF - DEN
1 stop8h 54mDelta
Mon 18/512:59 a.m.DEN - BUF
1 stop8h 03mDelta
Deal found 10/12C$ 302
Tue 31/37:30 p.m.BUF - DEN
1 stop6h 39mDelta
Wed 8/412:35 a.m.DEN - BUF
1 stop7h 04mDelta
Deal found 11/12C$ 302
Fri 20/26:35 p.m.BUF - DEN
1 stop7h 50mDelta
Mon 23/212:59 a.m.DEN - BUF
1 stop8h 19mDelta
Deal found 11/12C$ 302
Direct flights from Buffalo to Denver
Explore direct flight options from Buffalo to Denver based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 December 2025.
Wed 18/38:17 a.m.BUF - DEN
Nonstop3h 44mUnited Airlines
Mon 23/35:55 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 10/12C$ 274
Fri 27/28:25 a.m.BUF - DEN
Nonstop3h 44mUnited Airlines
Wed 4/35:44 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 9/12C$ 385
Thu 26/38:17 a.m.BUF - DEN
Nonstop3h 44mUnited Airlines
Mon 30/35:30 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 10/12C$ 448
Fri 13/38:17 a.m.BUF - DEN
Nonstop3h 44mUnited Airlines
Mon 16/35:55 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 479
Tue 31/38:30 a.m.BUF - DEN
Nonstop3h 45mUnited Airlines
Wed 8/45:30 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 480
Thu 12/28:25 a.m.BUF - DEN
Nonstop3h 44mUnited Airlines
Mon 16/25:44 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 513
Thu 2/48:30 a.m.BUF - DEN
Nonstop3h 45mUnited Airlines
Thu 2/45:30 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 520
Tue 31/38:30 a.m.BUF - DEN
Nonstop3h 45mUnited Airlines
Sat 4/45:30 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 535
Fri 20/28:25 a.m.BUF - DEN
Nonstop3h 44mUnited Airlines
Sun 22/25:44 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 549
Tue 31/38:30 a.m.BUF - DEN
Nonstop3h 45mUnited Airlines
Tue 7/45:30 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 575
Sun 29/38:30 a.m.BUF - DEN
Nonstop3h 45mUnited Airlines
Fri 3/45:30 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 604
Thu 2/48:30 a.m.BUF - DEN
Nonstop3h 45mUnited Airlines
Mon 6/45:30 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 615
Last-minute flights from Buffalo to Denver
Discover last-minute flight deals from Buffalo to Denver. Data last updated 12 December 2025 and is based on user searches.
Sun 4/17:48 p.m.BUF - DEN
1 stop6h 27mUnited Airlines
Sun 11/16:00 a.m.DEN - BUF
1 stop5h 24mUnited Airlines
Deal found 11/12C$ 422
Wed 7/15:23 p.m.BUF - DEN
1 stop6h 36mUnited Airlines
Wed 14/16:00 a.m.DEN - BUF
1 stop5h 24mUnited Airlines
Deal found 10/12C$ 302
Wed 7/11:20 p.m.BUF - DEN
2 stops8h 15mSouthwest
Wed 14/18:45 a.m.DEN - BUF
1 stop9h 45mSouthwest
Deal found 10/12C$ 309
Sun 11/110:30 a.m.BUF - DEN
Nonstop3h 50mSouthwest
Tue 13/16:20 a.m.DEN - BUF
1 stop8h 45mSouthwest
Deal found 11/12C$ 439
Tue 13/112:20 p.m.BUF - DEN
1 stop6h 20mSouthwest
Sat 17/15:05 p.m.DEN - BUF
Nonstop3h 00mSouthwest
Deal found 10/12C$ 456
Fri 16/112:07 p.m.BUF - DEN
1 stop7h 19mDelta
Thu 23/412:55 a.m.DEN - BUF
1 stop5h 28mDelta
Deal found 11/12C$ 371
Fri 16/12:49 p.m.BUF - DEN
1 stop6h 37mUnited Airlines
Fri 24/45:30 p.m.DEN - BUF
Nonstop3h 15mUnited Airlines
Deal found 11/12C$ 408
Sun 18/16:03 a.m.BUF - DEN
1 stop6h 21mDelta
Thu 22/17:05 a.m.DEN - BUF
1 stop8h 49mDelta
Deal found 9/12C$ 301
Sun 18/12:49 p.m.BUF - DEN
1 stop6h 37mUnited Airlines
Thu 22/11:30 p.m.DEN - BUF
1 stop4h 59mUnited Airlines
Deal found 9/12C$ 412
Fri 23/15:50 a.m.BUF - DEN
2 stops10h 45mSouthwest
Mon 26/18:20 p.m.DEN - BUF
2 stops9h 45mSouthwest
Deal found 11/12C$ 411
Sat 24/15:15 a.m.BUF - DEN
Nonstop3h 55mSouthwest
Mon 26/17:00 a.m.DEN - BUF
1 stop6h 10mSouthwest
Deal found 9/12C$ 403
One-way flights from Buffalo to Denver
Search for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated 12 December 2025.
Sun 25/11:39 p.m.BUF - DEN
1 stop10h 06mFrontier
Deal found 10/12C$ 90
Tue 3/38:25 a.m.BUF - DEN
Nonstop3h 44mUnited Airlines
Deal found 10/12C$ 138
Wed 7/12:10 p.m.BUF - DEN
1 stop9h 04mDelta
Deal found 10/12C$ 152
Sun 25/16:05 a.m.BUF - DEN
2 stops11h 11mAmerican Airlines
Deal found 10/12C$ 159
Mon 16/26:35 p.m.BUF - DEN
1 stop7h 50mDelta
Deal found 10/12C$ 179
Sun 8/38:17 a.m.BUF - DEN
Nonstop3h 44mUnited Airlines
Deal found 10/12C$ 193
Sun 25/111:02 a.m.BUF - DEN
3 stops23h 17mMultiple Airlines
Deal found 10/12C$ 203
Thu 8/19:55 a.m.BUF - DEN
1 stop8h 42mUnited Airlines
Deal found 11/12C$ 207
Sat 3/17:48 p.m.BUF - DEN
1 stop6h 27mUnited Airlines
Deal found 10/12C$ 210
Wed 10/68:30 a.m.BUF - DEN
Nonstop3h 45mUnited Airlines
Deal found 11/12C$ 212
Mon 5/17:48 p.m.BUF - DEN
1 stop6h 27mUnited Airlines
Deal found 10/12C$ 217
Wed 10/610:25 a.m.BUF - DEN
2 stops10h 05mSouthwest
Deal found 11/12C$ 228
Find flight deals from Buffalo to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 December 2025.
Customize your flight search to find flights from Buffalo to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from Buffalo to Denver that are best for you.
Fly from
Buffalo
Fly to
Denver
Route
Depart
Return
Price
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Sun 18/1
6:03 a.m.-10:24 a.m.
1 stop6h 21m
Denver Intl
Thu 22/1
7:05 a.m.-5:54 p.m.
1 stop8h 49m
C$ 301
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Sat 24/1
3:35 p.m.-8:10 p.m.
1 stop6h 35m
Denver Intl
Mon 26/1
6:20 a.m.-5:05 p.m.
1 stop8h 45m
C$ 302
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Sun 11/1
2:49 p.m.-7:26 p.m.
1 stop6h 37m
Denver Intl
Tue 13/1
6:00 a.m.-1:24 p.m.
1 stop5h 24m
C$ 302
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Fri 27/2
6:35 p.m.-12:25 a.m.
1 stop7h 50m
Denver Intl
Wed 4/3
6:00 a.m.-2:56 p.m.
1 stop6h 56m
C$ 302
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 13/1
10:45 a.m.-3:52 p.m.
1 stop7h 07m
Denver Intl
Sat 17/1
11:20 a.m.-8:29 p.m.
1 stop7h 09m
C$ 302
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 26/3
7:35 p.m.-11:20 p.m.
1 stop5h 45m
Denver Intl
Mon 30/3
11:55 p.m.-8:15 a.m.
1 stop6h 20m
C$ 302
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Wed 27/5
4:57 p.m.-10:18 p.m.
1 stop7h 21m
Denver Intl
Mon 8/6
12:55 a.m.-8:23 a.m.
1 stop5h 28m
C$ 302
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 14/5
4:57 p.m.-11:51 p.m.
1 stop8h 54m
Denver Intl
Mon 18/5
12:59 a.m.-11:02 a.m.
1 stop8h 03m
C$ 302
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 31/3
7:30 p.m.-12:09 a.m.
1 stop6h 39m
Denver Intl
Wed 8/4
12:35 a.m.-9:39 a.m.
1 stop7h 04m
C$ 302
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Fri 20/2
6:35 p.m.-12:25 a.m.
1 stop7h 50m
Denver Intl
Mon 23/2
12:59 a.m.-11:18 a.m.
1 stop8h 19m
C$ 302
Flights are sorted by cheapest round-trip flights first.
Deals found on 10/12
Showing 1-10 of 22 results
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Best time to book a flight from Buffalo to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Buffalo to Denver
Prices
More
How far ahead should I book a flight from Buffalo to Denver?
Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Denver. Price data was last updated on 5 December 2025.
To ensure you get the cheapest price possible for a flight from Buffalo to Denver, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Buffalo to Denver?
Currently, June is the cheapest month in which you can book a flight from Buffalo to Denver (average of C$ 163). Flying from Buffalo to Denver in April is currently the most expensive (average of C$ 312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BUF to DEN?
Find hourly flight availability from Buffalo to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.
Unlike in the evening, when flights are generally more expensive, you can save up to 57% on flights from Buffalo to Denver by exploring options for tickets in the afternoon.
What is the cheapest day to fly from Buffalo to Denver?
Use this chart to determine the cheapest time to fly round-trip from Buffalo to Denver. Price data was last updated on 6 December 2025.
Travelers seeking maximum savings on their Buffalo to Denver flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
What’s the top layover airport for flights from Buffalo to Denver?
Share of one-stop round-trip flights from Buffalo to Denver chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 50% of one-stop itineraries from Buffalo to Denver on Cheapflights.
What’s the cheapest layover airport for flights from Buffalo to Denver?
Average round-trip fare for 1-stop flights from Buffalo to Denver, chosen by Cheapflights users in the past 12 months, with the same layover each way.
New York (JFK) is the most affordable 1-stop option, with an average round-trip price of C$ 404.
What’s the fastest layover option from Buffalo to Denver?
Shortest average travel time for 1-stop one-way flights from Buffalo to Denver, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 18m.
Which airport typically offers the quickest layover for flights from Buffalo to Denver?
Average layover duration for 1-stop one-way flights from Buffalo to Denver, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 04m.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated 12 December 2025.
Read reviews from past customers who have flown Southwest,United Airlines, andFrontier
from Buffalo to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Related info for your journey
Find useful and relevant information for your journey from Buffalo to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How popular is this Buffalo to Denver flight route?
This flight path from Buffalo to Denver Intl was viewed by 252 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Buffalo to Denver?
There are many flights that can get you from Buffalo to Denver in 6h 21m. Fly via Delta, Southwest, or United Airlines to get the fastest option. The distance between Buffalo and Denver is about 2181 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Buffalo to Denver round-trip?
Cheapflights users have booked flights from Buffalo to Denver round-trip from C$ 206. Other airlines that can offer you cheap pricing are United Airlines, from C$ 245, and Southwest, from C$ 382. You may be able to fly from Buffalo to Denver for 55% less than the average price by searching for these airlines.
What are the most reliable airlines from Buffalo to Denver?
No one likes to see their flight delayed. When booking a flight from Buffalo to Denver consider choosing United Airlines (89%), Frontier (78%) or Southwest (67%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Buffalo to Denver?
The cheapest flight price from Buffalo to Denver is C$ 246. On average you can expect to pay C$ 554. The most popular route, (Buffalo - Denver Intl), can usually be booked for C$ 240.
Can I find deals for business class flights from Buffalo to Denver?
Yes. Cheapflights offers flight deals from Buffalo to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Buffalo to Denver?
Currently, June is the cheapest month in which you can book a flight from Buffalo to Denver (average of C$ 163). Flying from Buffalo to Denver in April is currently the most expensive (average of C$ 312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Discover the top 3 airlines that operate flights from Buffalo to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Buffalo to Denver?
When you search for this flight from Buffalo to Denver, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Buffalo to Denver?
Cheapflights helps you find that perfect flight to Denver from Buffalo by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Buffalo to Denver with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Buffalo to Denver flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Buffalo to Denver become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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