🇺🇸 Cheap flights from Rome to Ontario (United States) for €532 round-trip
· Captain Cheap
Flights from Rome to Ontario, United States from €532 round-trip by KLM! Find the cheapest flights from Rome to Ontario and book your ticket at the best price! Tickets to United States will cost from €532 both ways.
Ontario sits in California's Inland Empire, an easy base east of Los Angeles with the San Gabriel Mountains rising to the north. August here is hot and dry, so days lean toward air-conditioned malls, the Ontario Mills outlets, and quiet suburban streets rather than sightseeing marathons. It works best as a practical landing point: pick up a car, and Palm Springs, Joshua Tree, and the coast are all within reach.
KLMThis is the price we found on . Cheap fares move fast, so the live price may differ — always check it before booking.
See the live price →See Rome → Ontarioprice history & all deals →
Planning the trip? United States: what to see and when to go covers where to go, when, and what to expect.
Ready to go?
Book this trip
Deals this good sell out within hours — if it's right for you, book it before it's gone.
Rome → Ontario → Rome
€532 return
Where to stay
Hotels, apartments and guesthouses at the destination, most with free cancellation if plans change. Find a place to stay →
Car rental
Car hire in over 150 countries, useful when the destination airport is out of town. Compare car hire →
Airport transfer
A fixed-price car meeting you at arrivals, worth it when the deal lands at 2am and the buses have stopped. Book an airport transfer →
Staying connected
A travel eSIM avoids roaming charges and activates before you land. Get a travel eSIM →
Things to do there
Tours, day trips and skip-the-line tickets at the destination, usually cancellable up to 24h before. See tours and tickets →
Some of these are affiliate links — we may earn a commission at no extra cost to you.
You might also like
Athens → Boston
🇺🇸 Cheap flights from Athens to Boston (United States) for €384 round-trip
19–22 Jan · United States
Stockholm → Fort Lauderdale
🇺🇸 Cheap flights from Stockholm to Fort Lauderdale (United States) for €384 round-trip
22–24 Nov · United States
London → San Francisco
🇺🇸 Cheap flights from London to San Francisco (United States) for €474 round-trip
2–4 Oct · United States