Your next trip, last seen at €267
Lowest observedWhen 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.
- Lowest observed
- €146, departing 7 Dec 2026 (Last checked: 11 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- American Airlines, Delta Air Lines, United Airlines
- Typical journey time
- 14h 46m
About this route
Explore the fares we observed from Greensboro to Ontario. Prices move often, so pick your dates to see the latest options.
- Route distance
- 3,431 km
- Typical journey time
- 14h 46m
- Airlines seen
- American Airlines, Delta Air Lines, United Airlines
- Seen on fares with a connection
- American Airlines, 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
- Piedmont Triad International Airport (GSO) → Greensboro, city gazetteer reference point (36.0726, -79.7920): ≈ 13 km.
- Ontario International Airport (ONT) → Ontario, city gazetteer reference point (34.0500, -117.6400): ≈ 4 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 Greensboro to Ontario: Breeze Airways, from €146 (checked 11 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Breeze Airways | €146Dec 7, 2026 | 28 |
| Frontier Airlines | €189Feb 1, 2027 | 5 |
| Allegiant Air | €232Dec 4, 2026 | 5 |
| United Airlines | €329Nov 10, 2026 | 52 |
| WestJet | €647Jan 7, 2027 | 9 |
| Porter Airlines Canada | €712Jan 9, 2027 | 3 |
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 Greensboro to Ontario?
The lowest fare we have observed is €146, found on 11 Oct 2026. Prices move, so read it as a floor rather than a quote.
Are there direct flights from Greensboro to Ontario?
Our data holds no non-stop flight from Greensboro to Ontario. The fares on this page include at least one stop.
Which airlines fly from Greensboro to Ontario?
These are the carriers we have seen on the route: American Airlines, Delta Air Lines, United Airlines.
Which airline has the lowest fare from Greensboro to Ontario?
Cheapest airline from Greensboro to Ontario: Breeze Airways, from €146 (checked 11 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: 11 Oct 2026