$90+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — DEN
Jul 8 — Jul 151
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 October or August, 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 June 8, 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 June 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Wed 7/222:48 pm
BUF
- DEN
1 stop9h 17m
Frontier
Sun 7/268:52 pm
DEN
- BUF
2 stops35h 37m
Frontier
Deal found 6/3![Frontier logo]()
$267
This JetBlue deal was found by Cheapflights users on 6/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
BUF
- DEN
1 stop9h 04m
JetBlue
Sat 9/123:15 pm
DEN
- BUF
1 stop6h 35m
JetBlue
Deal found 6/4![JetBlue logo]()
$268
This Frontier deal was found by Cheapflights users on 6/3. 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.
Tue 8/2511:35 am
BUF
- DEN
1 stop12h 41m
Frontier
Wed 8/2611:42 pm
DEN
- BUF
1 stop8h 58m
Frontier
Deal found 6/3![Frontier logo]()
$269
This Frontier deal was found by Cheapflights users on 6/7. 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.
Wed 9/161:16 pm
BUF
- DEN
1 stop11h 17m
Frontier
Wed 9/3011:59 pm
DEN
- BUF
1 stop9h 04m
Frontier
Deal found 6/7![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 6/6. 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.
Tue 9/88:57 pm
BUF
- DEN
1 stop14h 30m
Frontier
Tue 9/1511:59 pm
DEN
- BUF
1 stop10h 22m
Frontier
Deal found 6/6![Frontier logo]()
$271
This JetBlue deal was found by Cheapflights users on 6/6. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:52 pm
BUF
- DEN
1 stop9h 07m
JetBlue
Tue 8/1811:37 pm
DEN
- BUF
1 stop7h 57m
JetBlue
Deal found 6/6![JetBlue logo]()
$273
This JetBlue deal was found by Cheapflights users on 6/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
BUF
- DEN
1 stop9h 15m
JetBlue
Mon 8/3111:37 pm
DEN
- BUF
1 stop7h 57m
JetBlue
Deal found 6/4![JetBlue logo]()
$274
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:52 pm
BUF
- DEN
1 stop9h 07m
Multiple Airlines
Sat 8/1511:59 pm
DEN
- BUF
1 stop8h 30m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$275
This Frontier deal was found by Cheapflights users on 6/3. 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.
Tue 7/2811:29 am
BUF
- DEN
1 stop12h 36m
Frontier
Thu 8/66:03 am
DEN
- BUF
1 stop12h 45m
Frontier
Deal found 6/3![Frontier logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Mon 7/272:48 pm
BUF
- DEN
1 stop20h 15m
Frontier
Mon 8/311:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Deal found 6/3![Frontier logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Thu 8/611:29 am
BUF
- DEN
2 stops22h 20m
Frontier
Mon 8/1011:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Deal found 6/3![Frontier logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Thu 8/1311:29 am
BUF
- DEN
1 stop12h 36m
Frontier
Sun 8/168:52 pm
DEN
- BUF
2 stops35h 48m
Frontier
Deal found 6/3![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 June 8, 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 June 8, 2026.
This JetBlue deal was found by Cheapflights users on 6/6. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:00 am
BUF
- DEN
1 stop10h 18m
JetBlue
Sat 10/243:15 pm
DEN
- BUF
1 stop6h 35m
JetBlue
Deal found 6/6![JetBlue logo]()
$301
This Southwest deal was found by Cheapflights users on 6/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:25 pm
BUF
- DEN
1 stop6h 00m
Southwest
Sat 8/225:35 pm
DEN
- BUF
Nonstop3h 10m
Southwest
Deal found 6/7![Southwest logo]()
$418
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Mon 7/277:52 pm
BUF
- DEN
1 stop6h 38m
United Airlines
Mon 8/35:40 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Deal found 6/3![United Airlines logo]()
$447
This Southwest deal was found by Cheapflights users on 6/3. 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.
Tue 10/202:00 pm
BUF
- DEN
1 stop7h 00m
Southwest
Sat 10/2411:00 am
DEN
- BUF
2 stops5h 45m
Southwest
Deal found 6/3![Southwest logo]()
$435
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Thu 8/278:55 am
BUF
- DEN
Nonstop3h 37m
United Airlines
Sun 8/305:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Deal found 6/7![United Airlines logo]()
$450
This Southwest deal was found by Cheapflights users on 6/5. 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.
Thu 8/206:50 am
BUF
- DEN
Nonstop3h 25m
Southwest
Thu 8/204:05 pm
DEN
- BUF
Nonstop3h 05m
Southwest
Deal found 6/5![Southwest logo]()
$470
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Tue 6/306:04 pm
BUF
- DEN
1 stop7h 44m
United Airlines
Wed 7/85:40 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Deal found 6/3![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 8/198:55 am
BUF
- DEN
Nonstop3h 37m
United Airlines
Mon 8/315:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Deal found 6/4![United Airlines logo]()
$500
This Southwest deal was found by Cheapflights users on 6/5. 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.
Wed 7/159:00 am
BUF
- DEN
2 stops11h 15m
Southwest
Fri 7/177:40 am
DEN
- BUF
2 stops9h 35m
Southwest
Deal found 6/5![Southwest logo]()
$508
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Tue 6/237:52 pm
BUF
- DEN
1 stop6h 38m
United Airlines
Thu 7/95:40 pm
DEN
- BUF
Nonstop3h 18m
United Airlines
Deal found 6/5![United Airlines logo]()
$511
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Sat 8/89:00 am
BUF
- DEN
Nonstop3h 35m
United Airlines
Tue 8/185:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Deal found 6/5![United Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Thu 8/138:55 am
BUF
- DEN
Nonstop3h 37m
United Airlines
Sat 8/225:25 pm
DEN
- BUF
Nonstop3h 12m
United Airlines
Deal found 6/6![United Airlines logo]()
$527
Last-minute flights from Buffalo to DenverDiscover last-minute flight deals from Buffalo to Denver. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Denver. Data last updated June 8, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 6/3. 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.
Wed 6/242:50 pm
BUF
- DEN
1 stop9h 26m
Frontier
Mon 6/2911:46 pm
DEN
- BUF
1 stop9h 09m
Frontier
Deal found 6/3![Frontier logo]()
$289
This JetBlue deal was found by Cheapflights users on 6/6. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:55 pm
BUF
- DEN
1 stop8h 47m
JetBlue
Wed 7/1511:37 pm
DEN
- BUF
1 stop7h 58m
JetBlue
Deal found 6/6![JetBlue logo]()
$285
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:55 pm
BUF
- DEN
1 stop8h 47m
Multiple Airlines
Sun 7/126:03 am
DEN
- BUF
1 stop12h 41m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/102:48 pm
BUF
- DEN
1 stop20h 15m
Frontier
Tue 7/1411:46 pm
DEN
- BUF
1 stop12h 07m
Frontier
Deal found 6/5![Frontier logo]()
$281
This Frontier deal was found by Cheapflights users on 6/4. 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.
Fri 7/172:48 pm
BUF
- DEN
1 stop9h 40m
Frontier
Wed 7/2211:46 pm
DEN
- BUF
1 stop8h 43m
Frontier
Deal found 6/4![Frontier logo]()
$283
This Frontier deal was found by Cheapflights users on 6/6. 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.
Tue 7/2111:29 am
BUF
- DEN
1 stop12h 36m
Frontier
Fri 7/3111:59 pm
DEN
- BUF
1 stop9h 34m
Frontier
Deal found 6/6![Frontier logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Wed 7/222:48 pm
BUF
- DEN
1 stop9h 17m
Frontier
Sun 7/268:52 pm
DEN
- BUF
2 stops35h 37m
Frontier
Deal found 6/3![Frontier logo]()
$267
This Gotogate deal was found by Cheapflights users on 6/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:48 pm
BUF
- DEN
1 stop9h 17m
Frontier
Wed 7/2911:46 pm
DEN
- BUF
1 stop8h 43m
Frontier
Deal found 6/7![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Mon 7/272:48 pm
BUF
- DEN
1 stop20h 15m
Frontier
Mon 8/311:59 pm
DEN
- BUF
1 stop8h 30m
Frontier
Deal found 6/3![Frontier logo]()
$278
This Frontier deal was found by Cheapflights users on 6/3. 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.
Tue 7/2811:29 am
BUF
- DEN
1 stop12h 36m
Frontier
Wed 8/511:46 pm
DEN
- BUF
1 stop8h 43m
Frontier
Deal found 6/3![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 6/3. 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.
Tue 7/2811:29 am
BUF
- DEN
1 stop12h 36m
Frontier
Thu 8/66:03 am
DEN
- BUF
1 stop12h 45m
Frontier
Deal found 6/3![Frontier logo]()
$276
This Frontier deal was found by Cheapflights users on 6/3. 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.
Thu 7/3011:29 am
BUF
- DEN
1 stop12h 36m
Frontier
Thu 8/66:00 am
DEN
- BUF
1 stop8h 32m
Frontier
Deal found 6/3![Frontier logo]()
$290
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 June 8, 2026.
Search for one-way flight options from Buffalo to Denver. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
This CheapOair deal was found by Cheapflights users on 6/3. 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.
Wed 8/196:00 am
BUF
- DEN
1 stop9h 15m
JetBlue
Deal found 6/3![JetBlue logo]()
$90
This Super.com deal was found by Cheapflights users on 6/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
BUF
- DEN
1 stop9h 04m
JetBlue
Deal found 6/5![JetBlue logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Tue 9/811:35 am
BUF
- DEN
1 stop28h 25m
Frontier
Deal found 6/4![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Wed 8/122:48 pm
BUF
- DEN
1 stop20h 15m
Frontier
Deal found 6/4![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Mon 6/292:50 pm
BUF
- DEN
1 stop25h 09m
Frontier
Deal found 6/3![Frontier logo]()
$107
This JetBlue deal was found by Cheapflights users on 6/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:00 am
BUF
- DEN
1 stop9h 15m
JetBlue
Deal found 6/5![JetBlue logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Fri 8/282:50 pm
BUF
- DEN
1 stop20h 08m
Frontier
Deal found 6/4![Frontier logo]()
$116
This Super.com deal was found by Cheapflights users on 6/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:55 pm
BUF
- DEN
1 stop8h 47m
JetBlue
Deal found 6/7![JetBlue logo]()
$117
This JetBlue deal was found by Cheapflights users on 6/7. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
BUF
- DEN
1 stop9h 04m
JetBlue
Deal found 6/7![JetBlue logo]()
$118
This Super.com deal was found by Cheapflights users on 6/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/31:31 pm
BUF
- DEN
1 stop11h 11m
JetBlue
Deal found 6/6![JetBlue logo]()
$120
This JetBlue deal was found by Cheapflights users on 6/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/43:55 pm
BUF
- DEN
1 stop8h 49m
JetBlue
Deal found 6/4![JetBlue logo]()
$121
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 June 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $267 (Kiwi.com) |
One-way from | $90 (CheapOair) |
Popular in | January |
Cheapest in | October |
Average price | $387 |
Good round-trip deal | $458 or less |
Good one-way deal | $230 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 June 8, 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
Tue 10/20
6:00 am-2:18 pm
1 stop10h 18m
Denver Intl
Sat 10/24
3:15 pm-11:50 pm
1 stop6h 35m
$301
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 8/18
6:25 pm-10:25 pm
1 stop6h 00m
Denver Intl
Sat 8/22
5:35 pm-10:45 pm
Nonstop3h 10m
$418
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 10/20
2:00 pm-7:00 pm
1 stop7h 00m
Denver Intl
Sat 10/24
11:00 am-6:45 pm
2 stops5h 45m
$435
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Mon 7/27
7:52 pm-12:30 am
1 stop6h 38m
Denver Intl
Mon 8/3
5:40 pm-10:58 pm
Nonstop3h 18m
$447
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 8/27
8:55 am-10:32 am
Nonstop3h 37m
Denver Intl
Sun 8/30
5:25 pm-10:37 pm
Nonstop3h 12m
$450
Quickest round-trip
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Thu 8/20
6:50 am-8:15 am
Nonstop3h 25m
Denver Intl
Thu 8/20
4:05 pm-9:10 pm
Nonstop3h 05m
$470
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 6/30
6:04 pm-11:48 pm
1 stop7h 44m
Denver Intl
Wed 7/8
5:40 pm-10:58 pm
Nonstop3h 18m
$499
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Wed 8/19
8:55 am-10:32 am
Nonstop3h 37m
Denver Intl
Mon 8/31
5:25 pm-10:37 pm
Nonstop3h 12m
$500
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Wed 7/15
9:00 am-6:15 pm
2 stops11h 15m
Denver Intl
Fri 7/17
7:40 am-7:15 pm
2 stops9h 35m
$508
BuffaloDenver
BUF - DEN
BUFDEN
Buffalo
Tue 6/23
7:52 pm-12:30 am
1 stop6h 38m
Denver Intl
Thu 7/9
5:40 pm-10:58 pm
Nonstop3h 18m
$511
Showing 1-10 of 23 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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?
Booking 56 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, October is the cheapest month in which you can book a flight from Buffalo to Denver (average of $256). Flying from Buffalo to Denver in January is currently the most expensive (average of $451). 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 June 8, 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 morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 50% 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 May 30, 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 June 8, 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.
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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
Westminster
Lakewood
Broomfield
Centennial
Golden
Greeley
Fort Morgan
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
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 June 8, 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 June 8, 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 June 8, 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 June 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$221 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$176 | Average$316 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$215 | Average$420 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$218 | Average$305 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$257 | Average$449 | FlexibilityNo cancel fee | On-time63% |