
Cheap Flights from Ontario Intl. Airport (ONT) to St. Thomas (STT)
Popular airlines from Ontario Intl. Airport (ONT) to Cyril E. King Airport (STT)
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Cheap flights from Ontario Intl. Airport (ONT) to St. Thomas (STT)
Prices were available within the past 7 days and start at for one-way flights and CA $1,175 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

















Frequently asked questions
Travel information
Origin airport | Ontario Intl. Airport |
|---|---|
Destination airport | Cyril E. King |
Roundtrip price | CA $1,175 |
Distance | 5437 km |
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Los Angeles to St. Thomas Flights
The easy way to book your flights from Ontario Intl. Airport to St. Thomas
With Expedia, it’s simple to find and book flights to St. Thomas from Ontario Intl. Airport whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 17 airlines that cover this route. There are nonstop flights to Cyril E. King, too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario Intl. Airport to St. Thomas today, tomorrow, or this week.
Save dollars with cheap flights from Ontario Intl. Airport, ONT to Cyril E. King, STT
Sort your search results by price to find great deals on your flight from Ontario Intl. Airport to St. Thomas—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Thomas from Ontario Intl. Airport currently is just CA $1,175 rising to CA $1,916.
Here are more money-saving tips:
- Fly in July when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to St. Thomas
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to St. Thomas from Ontario Intl. Airport
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Thomas with Expedia today.
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