Your next trip, last seen at €139
Lowest observedFrontier Airlines · 2 stops · 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
- €139, departing 3 Dec 2026 (Last checked: 15 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Frontier Airlines, JetBlue, United Airlines
- Typical journey time
- 23h 40m
About this route
Explore the fares we observed from Ontario to Buffalo. Prices move often, so pick your dates to see the latest options.
- Route distance
- 3,481 km
- Typical journey time
- 23h 40m
- Seen on fares with a connection
- Frontier Airlines, JetBlue, United Airlines
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
Airport to city: straight-line distance
- Ontario International Airport (ONT) → Ontario, city gazetteer reference point (34.0500, -117.6400): ≈ 4 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 Ontario to Buffalo: Frontier Airlines, from €139 (checked 15 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €139Dec 3, 2026 | 69 |
| JetBlue | €176Dec 5, 2026 | 6 |
| United Airlines | €228Nov 10, 2026 | 4 |
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 Ontario to Buffalo?
The lowest fare Routavio has observed is €139, found on 15 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Ontario to Buffalo?
In our observations December 2026 is the cheapest month so far, at €139.
Are there direct flights from Ontario to Buffalo?
Our data holds no non-stop flight from Ontario to Buffalo. The fares on this page include at least one stop.
Which airlines fly from Ontario to Buffalo?
Routavio has seen these carriers on the route: Frontier Airlines, JetBlue, United Airlines.
How long does the flight from Ontario to Buffalo take?
Across the 85 fares Routavio observed, the average journey time is 27h 14m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Ontario to Buffalo fares were non-stop?
None of the 85 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which airline has the lowest fare from Ontario to Buffalo?
Cheapest airline from Ontario to Buffalo: Frontier Airlines, from €139 (checked 15 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: 22 Oct 2026