DEN → BUFDenver to Buffalo

live

Direct flights from Denver (DEN) to Buffalo (BUF): 15 nonstop departures observed each week across 2 airlines. 92% of the last 12 tracked flights arrived within 15 minutes of schedule. The median arrival is 10 minutes early. No cancellations were recorded across the 13 tracked flights. The nonstop covers 2,182 km, an estimated 3 hours 18 minutes in the air. Measured by Pro Flight Search from live flight boards at Denver and Buffalo. Updated 5 November 2026 at 07:04 UTC.

Today, DEN → BUF

Thu 5 Nov · local times
  1. 11:50 WN988Southwest Airlines On scheduleGate C33 ·
  2. 17:25 UA731United Airlines Sched 17:25Departure not confirmed by the board ·

Checked DEN board 00:04 · BUF board 22:18

DEN Denver smooth · +0
BUF Buffalo smooth · +0
2,182 km · ~3h 18m est.
dep bank 11:50–17:2515x weekly
Runs reliable · 2 airlines · 15x weekly · nonstop
92% on time

of the last 12 tracked DEN → BUF flights arrived within 15 minutes

Median arrival delay is −10 min. 0 of 13 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−10 minacross the last 12 arrivals
Flight time~3h 18mestimated from route distance
Weekly departures15x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 13

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest AirlinesUnited Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Southwest AirlinesWN83% on time

Flights WN988 11:50 Mo Tu We Th Su · WN4892 13:50 Mo Th Fr

United AirlinesUA100% on time

Flights UA731 17:25 daily

History

operated legs · board outcomes
11-04UA731departed−1
11-04WN988dep +1 → arr−20
11-03UA731dep −1 → arr−16
11-03WN988dep +141 → arr+139
11-02UA731dep −4 → arr−9
11-02WN988dep −1 → arr−6
11-01UA731dep +10 → arr+0
11-01WN988dep +17 → arr+9
10-31UA731dep +0 → arr−14
10-30UA731dep +8 → arr−12
10-30WN4892dep +18 → arr−10
10-29UA731dep −8 → arr−22
10-29WN4892dep +5 → arr−17

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
DENDenver +0 min smooth 🌤 mostly cloudy · WSW 4 kt Full DEN delay board →
BUFBuffalo +0 min smooth 🌤 overcast · S 11 kt Full BUF delay board →

Weather lens

Conditions are tightest at DEN and BUF: a 40% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +9 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →

How the Denver to Buffalo route actually runs

Pro Flight Search records official board updates for nonstop DEN to BUF flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: Denver (DEN) to Buffalo (BUF) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/DEN-BUF
How we measure this →

DEN to BUF questions

Is DEN–BUF running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on DEN–BUF?

Operators schedule morning departures around 11:50 and evening departures around 17:25 from DEN. Earlier flights typically land before destination-airport delays accumulate later in the day; check the BUF delay card to confirm conditions when you'd arrive.

How long is the flight from DEN to BUF?

Great-circle distance is 2,182 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 184–217 min gate-to-gate on this route.

How often does DEN–BUF fly?

2 carriers operate this route, around 15 flights a week between them. Compare carrier days and times in the airline list above.