Your next trip, last seen at €118
Lowest observedFrontier Airlines · 1 stop · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €118, departing 1 Dec 2026 (Last checked: 18 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Frontier Airlines, JetBlue, United Airlines
- Typical journey time
- 13h 10m
About this route
Explore the fares we observed from Denver to Buffalo. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,199 km
- Typical journey time
- 13h 10m
- Seen on fares with a connection
- Frontier Airlines, JetBlue, United Airlines
- Alternative airports
- APA
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| United Airlines | 9 / 82 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- Denver International Airport (DEN) → Denver, city gazetteer reference point (39.7392, -104.9847): ≈ 30 km.
- Buffalo Niagara International Airport (BUF) → Buffalo, city gazetteer reference point (42.8864, -78.8784): ≈ 13 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest one-way fare we saw per airline
Cheapest airline from Denver to Buffalo: Frontier Airlines, from €118 (checked 18 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €118Dec 1, 2026 | 58 |
| JetBlue | €203Dec 12, 2026 | 15 |
| United Airlines | €238Jan 11, 2027 | 9 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Denver to Buffalo?
The lowest fare Routavio has observed is €118, found on 18 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Denver to Buffalo?
In our observations December 2026 is the cheapest month so far, at €118.
Are there direct flights from Denver to Buffalo?
Our data holds no non-stop flight from Denver to Buffalo. The fares on this page include at least one stop.
Which airlines fly from Denver to Buffalo?
Routavio has seen these carriers on the route: Frontier Airlines, JetBlue, United Airlines.
How long does the flight from Denver to Buffalo take?
Across the 87 fares Routavio observed, the average journey time is 15h 10m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
Which airlines had non-stop offers on at least 3 departure dates from Denver to Buffalo?
For Denver to Buffalo, examples of observed one-way non-stop offers checked within the last 14 days: United Airlines (9). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which airline has the lowest fare from Denver to Buffalo?
Cheapest airline from Denver to Buffalo: Frontier Airlines, from €118 (checked 18 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 25 Oct 2026