$65+ Cheap flights from Buffalo to Denver (BUF - DEN)
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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
apr. 9 — apr. 161
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Buffalo to Denver Intl are usually found in August or October, booked 90 days in advance, depart on a Friday or Wednesday and return on a Friday
Cheap flight deals from Buffalo to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Buffalo to DenverExplore 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 maart 10, 2026.
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 maart 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
do 5/71:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
za 5/163:45 pm
DEN
- BUF
2 stops18h 28m
Frontier
Deal found 3/8![Frontier logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 3/2311:59 am
BUF
- DEN
2 stops22h 27m
Frontier
di 3/3111:59 pm
DEN
- BUF
1 stop10h 18m
Frontier
Deal found 3/6![Frontier logo]()
$268
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 4/128:30 am
BUF
- DEN
Nonstop3h 43m
United Airlines
wo 4/155:53 pm
DEN
- BUF
Nonstop3h 17m
United Airlines
Deal found 3/6![United Airlines logo]()
$269
This Frontier deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 3/229:47 pm
BUF
- DEN
1 stop12h 33m
Frontier
do 3/2611:59 pm
DEN
- BUF
1 stop10h 06m
Frontier
Deal found 3/7![Frontier logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 5/131:08 pm
BUF
- DEN
2 stops10h 50m
Frontier
vr 5/1511:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 3/8![Frontier logo]()
$271
This CheapOair deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
za 5/161:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
za 5/2311:21 am
DEN
- BUF
1 stop21h 39m
Frontier
Deal found 3/6![Frontier logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 5/121:08 pm
BUF
- DEN
2 stops10h 50m
Frontier
wo 5/1311:59 pm
DEN
- BUF
1 stop10h 14m
Frontier
Deal found 3/8![Frontier logo]()
$273
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 5/227:31 pm
BUF
- DEN
1 stop5h 27m
Delta
ma 6/811:59 pm
DEN
- BUF
1 stop8h 36m
Delta
Deal found 3/6![Delta logo]()
$275
This Priceline deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 3/229:47 pm
BUF
- DEN
1 stop12h 33m
Frontier
wo 3/2511:59 pm
DEN
- BUF
1 stop10h 06m
Frontier
Deal found 3/9![Frontier logo]()
$276
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 5/2712:18 pm
BUF
- DEN
1 stop7h 39m
Delta
ma 6/812:59 am
DEN
- BUF
1 stop8h 16m
Delta
Deal found 3/9![Delta logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 3/2212:45 pm
BUF
- DEN
2 stops26h 42m
Frontier
wo 4/111:59 pm
DEN
- BUF
1 stop10h 18m
Frontier
Deal found 3/6![Frontier logo]()
$280
Best flights from Buffalo to DenverDiscover 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 maart 10, 2026.
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 maart 10, 2026.
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 5/2712:18 pm
BUF
- DEN
1 stop7h 39m
Delta
ma 6/812:59 am
DEN
- BUF
1 stop8h 16m
Delta
Deal found 3/9![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 8/127:00 am
BUF
- DEN
1 stop7h 45m
United Airlines
za 8/156:05 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Deal found 3/8![United Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/76:55 pm
BUF
- DEN
1 stop5h 40m
Southwest
do 4/911:55 pm
DEN
- BUF
1 stop5h 55m
Southwest
Deal found 3/5![Southwest logo]()
$289
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 4/37:45 pm
BUF
- DEN
1 stop6h 59m
United Airlines
vr 4/105:53 pm
DEN
- BUF
Nonstop3h 17m
United Airlines
Deal found 3/7![United Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
za 7/184:00 pm
BUF
- DEN
1 stop8h 00m
Southwest
di 7/217:35 am
DEN
- BUF
2 stops11h 50m
Southwest
Deal found 3/8![Southwest logo]()
$354
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
za 6/209:00 am
BUF
- DEN
Nonstop3h 35m
United Airlines
za 6/2711:59 pm
DEN
- BUF
1 stop7h 52m
United Airlines
Deal found 3/8![United Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 5/279:00 am
BUF
- DEN
Nonstop3h 35m
United Airlines
di 6/95:40 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Deal found 3/5![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 5/58:37 am
BUF
- DEN
Nonstop3h 43m
United Airlines
za 5/95:48 pm
DEN
- BUF
Nonstop3h 17m
United Airlines
Deal found 3/6![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 8/2510:25 am
BUF
- DEN
1 stop6h 12m
United Airlines
ma 8/316:05 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Deal found 3/5![United Airlines logo]()
$359
Last-minute flights from Buffalo to DenverDiscover last-minute flight deals from Buffalo to Denver. Data last updated maart 10, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Denver. Data last updated maart 10, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 3/2012:50 pm
BUF
- DEN
1 stop12h 14m
Frontier
di 3/3111:59 pm
DEN
- BUF
1 stop10h 18m
Frontier
Deal found 3/9![Frontier logo]()
$275
This Frontier deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
za 3/217:36 pm
BUF
- DEN
1 stop14h 42m
Frontier
wo 3/2511:59 pm
DEN
- BUF
1 stop10h 06m
Frontier
Deal found 3/6![Frontier logo]()
$291
This Frontier deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 3/229:47 pm
BUF
- DEN
1 stop12h 33m
Frontier
do 3/2611:59 pm
DEN
- BUF
1 stop10h 06m
Frontier
Deal found 3/7![Frontier logo]()
$270
This Priceline deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 3/229:47 pm
BUF
- DEN
1 stop12h 33m
Frontier
wo 3/2511:59 pm
DEN
- BUF
1 stop10h 06m
Frontier
Deal found 3/9![Frontier logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 3/2212:45 pm
BUF
- DEN
2 stops26h 42m
Frontier
wo 4/111:59 pm
DEN
- BUF
1 stop10h 18m
Frontier
Deal found 3/6![Frontier logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 3/2311:59 am
BUF
- DEN
2 stops22h 27m
Frontier
di 3/3111:59 pm
DEN
- BUF
1 stop10h 18m
Frontier
Deal found 3/6![Frontier logo]()
$268
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 3/313:56 pm
BUF
- DEN
1 stop7h 50m
Delta
do 4/211:59 pm
DEN
- BUF
1 stop8h 58m
Delta
Deal found 3/8![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 3/318:30 am
BUF
- DEN
Nonstop3h 43m
United Airlines
do 4/25:53 pm
DEN
- BUF
Nonstop3h 17m
United Airlines
Deal found 3/8![United Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 4/128:30 am
BUF
- DEN
Nonstop3h 43m
United Airlines
wo 4/155:53 pm
DEN
- BUF
Nonstop3h 17m
United Airlines
Deal found 3/6![United Airlines logo]()
$269
This Expedia deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 4/2412:18 pm
BUF
- DEN
1 stop12h 16m
Multiple Airlines
zo 4/2611:59 pm
DEN
- BUF
1 stop6h 59m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$285
This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 4/248:30 am
BUF
- DEN
Nonstop3h 43m
United Airlines
zo 4/265:53 pm
DEN
- BUF
Nonstop3h 17m
United Airlines
Deal found 3/9![United Airlines logo]()
$289
One-way flights from Buffalo to DenverSearch for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated maart 10, 2026.
Search for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated maart 10, 2026.
This Trip.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/141:56 pm
BUF
- DEN
1 stop10h 33m
Frontier
Deal found 3/9![Frontier logo]()
$65
This Trip.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/211:56 pm
BUF
- DEN
1 stop10h 33m
Frontier
Deal found 3/7![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 4/281:56 pm
BUF
- DEN
1 stop10h 33m
Frontier
Deal found 3/7![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 4/2012:32 pm
BUF
- DEN
1 stop25h 42m
Frontier
Deal found 3/9![Frontier logo]()
$70
This Trip.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 5/201:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 3/9![Frontier logo]()
$77
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 4/151:56 pm
BUF
- DEN
1 stop10h 33m
Frontier
Deal found 3/6![Frontier logo]()
$81
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 4/221:56 pm
BUF
- DEN
1 stop10h 33m
Frontier
Deal found 3/6![Frontier logo]()
$82
This Trip.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
do 4/1612:35 pm
BUF
- DEN
1 stop11h 54m
Frontier
Deal found 3/9![Frontier logo]()
$86
This Trip.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
do 5/141:08 pm
BUF
- DEN
1 stop11h 55m
Frontier
Deal found 3/7![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 4/1312:42 pm
BUF
- DEN
1 stop25h 27m
Frontier
Deal found 3/6![Frontier logo]()
$88
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 4/61:02 pm
BUF
- DEN
1 stop12h 02m
Frontier
Deal found 3/6![Frontier logo]()
$89
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 maart 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $267 (Kiwi.com) |
One-way from | $65 (Trip.com) |
Popular in | January |
Cheapest in | August |
Average price | $412 |
Good round-trip deal | $411 or less |
Good one-way deal | $225 or less |
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated maart 10, 2026.
Use the filters below to find and compare flights from Buffalo to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
wo 5/27
12:18 pm-5:57 pm
1 stop7h 39m
Denver Intl
ma 6/8
12:59 am-11:15 am
1 stop8h 16m
$277
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
wo 8/12
7:00 am-12:45 pm
1 stop7h 45m
Denver Intl
za 8/15
6:05 pm-11:23 pm
Nonstop3h 18m
$279
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
di 4/7
6:55 pm-10:35 pm
1 stop5h 40m
Denver Intl
do 4/9
11:55 pm-7:50 am
1 stop5h 55m
$289
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
vr 4/3
7:45 pm-12:44 am
1 stop6h 59m
Denver Intl
vr 4/10
5:53 pm-11:10 pm
Nonstop3h 17m
$297
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
za 6/20
9:00 am-10:35 am
Nonstop3h 35m
Denver Intl
za 6/27
11:59 pm-9:51 am
1 stop7h 52m
$327
Quickest round-trip
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
wo 5/27
9:00 am-10:35 am
Nonstop3h 35m
Denver Intl
di 6/9
5:40 pm-10:58 pm
Nonstop3h 18m
$349
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
di 5/5
8:37 am-10:20 am
Nonstop3h 43m
Denver Intl
za 5/9
5:48 pm-11:05 pm
Nonstop3h 17m
$349
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
za 7/18
4:00 pm-10:00 pm
1 stop8h 00m
Denver Intl
di 7/21
7:35 am-9:25 pm
2 stops11h 50m
$354
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
di 8/25
10:25 am-2:37 pm
1 stop6h 12m
Denver Intl
ma 8/31
6:05 pm-11:23 pm
Nonstop3h 18m
$359
Cheapest one-way
Quickest one-way
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
za 4/18
3:25 pm-5:00 pm
Nonstop3h 35m
$135
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Buffalo to Denver
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Denver in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buffalo-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BUF-DEN
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
Airlines
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 March 6, 2026.
Booking 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Buffalo to Denver?
Currently, September is the cheapest month in which you can book a flight from Buffalo to Denver (average of $118). Flying from Buffalo to Denver in November is currently the most expensive (average of $217). 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 maart 10, 2026.
One of the essential ways to save on airfare from Buffalo to Denver is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 52% on airfare.
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 February 21, 2026.
Travelers seeking maximum savings on their Buffalo to Denver flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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 maart 10, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Buffalo to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen
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Alternative routes for Buffalo to Denver
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Complete your trip
Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on maart 10, 2026.
Search flights from Buffalo to Denver by cabin class
Find flights from Buffalo to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Buffalo and Denver flights
Browse other Buffalo and Denver flight options. Last updated on maart 10, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on maart 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Buffalo to Denver
Discover the top 5 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 2,558,603 searches. Data last updated maart 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$215 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$278 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$198 | Average$297 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$201 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$420 | FlexibilityNo cancel fee | On-time63% |