Cheap flights from Denver to Buffalo (DEN–BUF)
DENDenver International Airport
United States
United States
BUFBuffalo Niagara International Airport
United States
United States
Frontier Airlines, Southwest Airlines and United Airlines fly Denver to Buffalo (DEN–BUF) nonstop and back, a great-circle distance of 2,180 km (1,360 mi).
- From
- DEN
- Denver
- To
- BUF
- Buffalo
- Nonstop
- Yes · 3 airlines
- Airlines
- F9 · WN · UA
- Cheapest fare found
- $236 one-way
- Distance
- 2,180 km (1,360 mi)
- Time difference
- Buffalo 2 hours ahead
- Most flights
- Southwest Airlines
- Time in the air
- 2h 36m · 3h 09m back
- On time (Touchdown Index)
- 91.1%
- Flights a week
- WN ~6 · UA ~5
- Aircraft seen
- Boeing 737-800 · Boeing 737 Max 8 · Boeing 737-700
Network data imported from airport and airline sources:· How we verify
Denver to Buffalo fares by month
Cheapest one-way fare found: $236 for October 2026 on Frontier Airlines (1 stop).
- Oct ’26$236
Cheapest one-way fares per month of departure in the Aviasales price cache, found . Fares change by the hour: the live fare is shown when you search.
Denver to Buffalo: frequently asked questions
Fares: Aviasales price cache, 8 October 2026; tracked flights between 6 September and 3 October 2026, from public ADS-B data.
How much is a flight from Denver (DEN) to Buffalo Niagara (BUF)?
From $236 one-way, the cheapest fare found for October 2026 on Frontier Airlines with 1 stop (found 8 October 2026).
How long is the DEN–BUF flight?
2h 36m wheels-up to wheels-down, the median of 31 tracked flights; BUF–DEN took 3h 09m.
Which airlines fly DEN–BUF direct?
Frontier Airlines, Southwest Airlines and United Airlines.
What is the time difference between Denver and Buffalo?
Buffalo is 2 hours ahead of Denver: a DEN departure at noon is 14:00 local time in BUF.
Is DEN–BUF usually on time?
91.1% of 56 DEN–BUF flights landed within 15 minutes of their usual time; 1.8% were over an hour late.
How many DEN–BUF flights a week?
Southwest Airlines 6 and United Airlines 5 each way.
What aircraft fly DEN–BUF?
Boeing 737-800, Boeing 737 Max 8 and Boeing 737-700.
Buffalo to Denver: the return flight (BUF–DEN)
All 3 airlines also fly BUF–DEN nonstop.
The return takes 3h 09m in the air (median of 51 tracked flights), 33 minutes longer than DEN–BUF.
Airlines flying DEN–BUF nonstop
| Airline | Usually takes off (DEN time) | Type | Alliance | Notes |
|---|---|---|---|---|
 Frontier Airlines F9 | — | low-cost | — | Seasonal |
 Southwest Airlines WN | 11:11–19:26 | low-cost | — | Seasonal |
| United Airlines UA | 18:05–20:08 | full-service | Star Alliance | — |
One-stop alternatives to flying DEN–BUF nonstop
One airline on both legs; check it's sold as one ticket.
- Via Chicago (ORD) with
American Airlines and United Airlines: 2,190 km (1,360 mi) flown, almost no further than nonstop. - Via Detroit (DTW) with
Delta Air Lines: 2,190 km (1,360 mi) flown, almost no further than nonstop. - Via Chicago (MDW) with Southwest Airlines: 2,190 km (1,360 mi) flown, almost no further than nonstop.
- Via Minneapolis (MSP) with Delta Air Lines and Sun Country Airlines: 2,270 km (1,410 mi) flown, 4% further than nonstop.
- Via Nashville (BNA) with Southwest Airlines: 2,650 km (1,640 mi) flown, 21% further than nonstop.
DEN–BUF route map
More from Denver and Buffalo
Other arrivals in United States
Also nonstop from DEN, nearest to BUF first (straight-line distance):
- Syracuse (SYR) airport guide · 214 km (133 mi) from BUF
- DEN–PIT: Pittsburgh · 299 km (186 mi) from BUF
- DEN–CLE: Cleveland · 308 km (191 mi) from BUF
- Lehigh Valley (ABE) · 373 km (232 mi) from BUF
- DEN–DTW: Detroit · 387 km (240 mi) from BUF
Explore the airlines’ route maps
- Frontier Airlines route map and destinations
- Southwest Airlines route map and destinations
- United Airlines route map and destinations
Plan your arrival at Buffalo Niagara International Airport (BUF)
Departure
Denver International Airport
Denver (DEN), Denver. In our data, 23 airlines fly nonstop from DEN to 165 destinations.
View DEN airport guide →Arrival
Buffalo Niagara International Airport
Buffalo Niagara (BUF), Buffalo.
Related routes
Sources
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
Flight tracking: adsb.lol community ADS-B data (CC0), 6 September – 3 October 2026. Times are median wheels-up to wheels-down; add taxiing for gate-to-gate.
Report a change — seen something different at the airport or on the airline's site? We re-check and log corrections publicly.