Ontario to Rome flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Ontario to Rome is €307 (checked on 22 Oct 2026).
Your next trip, last seen at €307
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
- €307, departing 24 Jan 2027 (Last checked: 22 Oct 2026)One-way fareCheck live prices for this route
- Round trip
- €635, departing 9 Nov 2026, back 18 Nov 2026 (Last checked: 29 Oct 2026)
- Airlines seen
- Alaska Airlines, American Airlines, United Airlines
About this route
Explore the fares we observed from Ontario to Rome. Prices move often, so pick your dates to see the latest options.
- Route distance
- 10,159 km
- Seen on fares with a connection
- United Airlines
- Alternative airports
- CIA
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
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Ontario International Airport (ONT) → Ontario, city gazetteer reference point (34.0500, -117.6400): ≈ 4 km.
- Rome Ciampino (CIA) → Rome, city gazetteer reference point (41.8905, 12.4942): ≈ 13 km.
- Rome Fiumicino (FCO) → Rome, city gazetteer reference point (41.8905, 12.4942): ≈ 23 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.
Frequently asked
How much is a flight from Ontario to Rome?
The lowest fare Routavio has observed is €307, found on 22 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Ontario to Rome?
In our observations January 2027 is the cheapest month so far, at €307.
Are there direct flights from Ontario to Rome?
Our data holds no non-stop flight from Ontario to Rome. The fares on this page include at least one stop.
Which airlines fly from Ontario to Rome?
Routavio has seen these carriers on the route: Alaska Airlines, American Airlines, United Airlines.
How many of the observed Ontario to Rome fares were non-stop?
None of the 5 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
How much is a round trip from Ontario to Rome?
Cheapest round trip: €635, departing 9 Nov 2026, back 18 Nov 2026 (checked 29 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.