🇺🇸 Cheap flights from London to Ontario (United States) for €465 round-trip
· Captain Cheap
Flights from London to Ontario, United States from €465 round-trip by KLM! Find the cheapest flights from London to Ontario and book your ticket at the best price! Tickets to United States will cost from €465 both ways.
Ontario sits in California's Inland Empire, an easygoing base east of Los Angeles rather than a destination in its own right. The old downtown along Euclid Avenue keeps a low-slung, small-city feel, while the surrounding valley spreads out under the San Gabriel Mountains, often snow-tipped by November. It's practical territory: outlet shopping, wide roads, and quick reach toward the desert, Palm Springs, or the coast when you want more.
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Planning the trip? United States: what to see and when to go covers where to go, when, and what to expect.
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London → Ontario → London
€465 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
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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
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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 →
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