Your next trip, last seen at €49
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.
One-way fare
- Lowest observed
- €49, departing 1 Dec 2026 (Last checked: 25 Oct 2026)One-way fareCheck live prices for this route
- Non-stop, one way
- €105, departing 12 Dec 2026 (Last checked: 25 Oct 2026)
- Airlines seen
- United Airlines, Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines
- Reported fastest flight
- 3h 11m
- Non-stop
- Yes
About this route
Explore the fares we observed from Ontario to Houston. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,150 km
- Reported fastest flight
- 3h 11m
- Alternative airports
- HOU
Route-level information; individual journeys vary.
Published schedules report non-stop service with United Airlines. Check current timetables.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| United Airlines | 5 / 183 |
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
- Ontario International Airport (ONT) → Ontario, city gazetteer reference point (34.0500, -117.6400): ≈ 4 km.
- William P. Hobby Airport (HOU) → Houston, city gazetteer reference point (29.7628, -95.3831): ≈ 17 km.
- George Bush Intercontinental Airport (IAH) → Houston, city gazetteer reference point (29.7628, -95.3831): ≈ 25 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 Houston: Frontier Airlines, from €49 (checked 25 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €49Dec 1, 2026 | 6 |
| United Airlines | €105Dec 2, 2026 | 6 |
| American Airlines | €114Dec 1, 2026 | 4 |
| Delta Air Lines | €114Dec 1, 2026 | 6 |
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 Houston?
The lowest fare Routavio has observed is €49, found on 25 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Ontario to Houston?
In our observations December 2026 is the cheapest month so far, at €49.
Are there direct flights from Ontario to Houston?
Yes. Published schedules report non-stop flights on this route with United Airlines.
Which airlines fly from Ontario to Houston?
Routavio has seen these carriers on the route: United Airlines, Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines.
How much is a non-stop flight from Ontario to Houston?
Cheapest non-stop one-way fare: €105, departing 12 Dec 2026 (checked 25 Oct 2026).
Which airlines had non-stop offers on at least 3 departure dates from Ontario to Houston?
For Ontario to Houston, examples of observed one-way non-stop offers checked within the last 14 days: United Airlines (5). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which airline has the lowest fare from Ontario to Houston?
Cheapest airline from Ontario to Houston: Frontier Airlines, from €49 (checked 25 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.