Denver to Buffalo (DEN-BUF): nonstop flights and who flies them

United Airlines flies the DEN to BUF nonstop about 12 times a week. United Airlines sets the rhythm here, a few flights a day with a small premium cabin on each, so a date with open space is worth acting on the day you see it. United Airlines fly the route nonstop in 2LNR's schedule data; the timetable and the reverse direction are below.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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12
Nonstop flights a week
1,356 mi
Nonstop distance
Free
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Denver to Buffalo flight schedule

Scheduled nonstop departures for DEN to BUF, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Denver (DEN) to Buffalo (BUF)
Date Flight Airline Departs DEN Arrives BUF Duration Aircraft
UA 248United Airlines17:2522:373h 12m738
UA 248United Airlines17:2522:373h 12m738
UA 248United Airlines17:2522:373h 12m738
UA 248United Airlines17:2522:373h 12m738
UA 248United Airlines17:2522:373h 12m738
UA 248United Airlines17:2522:373h 12m738
UA 248United Airlines17:2522:373h 12m738

Showing all 7 scheduled DEN to BUF departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every DEN to BUF date on the interactive map

The full DEN to BUF nonstop schedule

United Airlines fly the route nonstop in 2LNR's schedule data. This page carries the full DEN to BUF nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See real availability

Confirmed upgrade and award seats on each DEN to BUF departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See DEN to BUF on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Denver to Buffalo nonstop

Carriers operating DEN to BUF nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See DEN to BUF on the interactive map →

Frequently asked questions about DEN to BUF

How far is Buffalo from Denver?
DEN to BUF covers about 1,356 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from DEN to BUF?
United Airlines is currently the only airline flying DEN to BUF nonstop. None of them is a carrier 2LNR reads inventory for, so this page carries the DEN to BUF schedule rather than a space claim.
How many flights a week are there from DEN to BUF?
About 12 nonstop flights a week run between Denver and Buffalo in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from DEN to BUF depart?
In the next 7 days with service, every scheduled DEN to BUF nonstop leaves at 17:25 local time at Denver. The schedule table on this page lists each departure by date.
Does 2LNR show upgrade or award space on DEN to BUF?
Not on this route: none of United Airlines is a carrier 2LNR reads inventory for. The page carries the full DEN to BUF nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full DEN to BUF nonstop schedule

Every scheduled departure on this route, with who flies it. On the routes 2LNR does read inventory for, upgrade and award space shows by date, the next 14 days free on every product and the full horizon on Pro.

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