DenverBuffaloDirect FlightsDEN–BUF
Denver (Denver International Airport) to Buffalo (Buffalo Niagara International Airport).
Flight time from DEN to BUF is estimated at about 3h 23m, based on the 1,356-mile great-circle distance. Our current captured departure sample includes 2-3/day across 3 captured airlines, with Southwest Airlines appearing most often in that sample. Captured departure times run from 12:00 to 22:19 local time.
Plan this routeAt a glance
| Est. flight time | Distance | Captured freq. | Type |
|---|---|---|---|
| ~3h 23m Estimated from great-circle distance — no tracked flights yet. | 1,356 mi | 2-3/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Captured airlines for DEN to BUF
Our current provider sample includes 2-3/day from DEN to BUF across 3 captured airlines.
- First departure
- 12:00
- Last departure
- 22:19
- Cadence
- ~every 2 hours
- Captured departures/day
- 8
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Southwest Airlines | 1-2/day | Boeing 737 · Seat map | 12:0012:1012:45 |
Aircraft on this route
Flying the other way?
BUF to DEN flights — 2-3/day on 3 airlines →Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for DEN to BUF, last seen June 15, 2026. Frequency uses 17 scheduled departures across 7 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.
Route FAQ
How long is the flight from DEN to BUF?
The DEN to BUF flight time is estimated at about 3h 23m from great-circle distance until enough tracked flights are available.
How far is DEN from BUF?
DEN to BUF is about 1,356 miles by air.
Which airlines fly from DEN to BUF?
Our current provider sample for DEN to BUF includes Southwest Airlines, United Airlines, Frontier Airlines. Confirm live timetables before booking.
What aircraft fly from DEN to BUF?
Aircraft captured in our current provider sample for DEN to BUF include Boeing 737.