STT - ONT

$452 Find Cheap Flights from Saint Thomas Island to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Saint Thomas Island to Ontario departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Saint Thomas Island to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Saint Thomas Island to Ontario, as well as popular online travel agencies
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Cheap Flights from Saint Thomas Island to Ontario (STT-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Saint Thomas Island to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Saint Thomas Island to Ontario

Wed, May 28 - Tue, Jun 3
United Airlines Logo
1:19 pm - 10:45 pmSTT-ONT
12h 26m2 stops
United Airlines Logo
6:32 pm - 12:17 pmONT-STT
14h 45m2 stops
$769United Airlines
Find Deal
Thu, May 29 - Mon, Jun 2
Delta Logo
1:17 pm - 10:29 pmSTT-ONT
12h 12m1 stop
Delta Logo
10:00 pm - 1:41 pmONT-STT
12h 41m1 stop
$925Delta
Find Deal
Sun, Jul 27 - Wed, Jul 30
United Airlines Logo
9:10 am - 8:54 pmSTT-ONT
14h 44m2 stops
United Airlines Logo
6:28 pm - 12:17 pmONT-STT
14h 49m2 stops
$1,073United Airlines
Find Deal
Wed, May 28 - Mon, Jun 2
Delta Logo
2:51 pm - 10:29 pmSTT-ONT
10h 38m1 stop
Delta Logo
10:00 pm - 1:41 pmONT-STT
12h 41m1 stop
$1,244Delta
Find Deal
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KAYAK's insights & trends for Saint Thomas Island to Ontario flights

Get data-powered insights and trends into flights from Saint Thomas Island to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Saint Thomas Island to Ontario?

The average price of all round-trip flights from Saint Thomas Island to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Saint Thomas Island to Ontario. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

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Good to know

Cheapest flight$452
Flight from Saint Thomas Island to Ontario

When to book flights from Saint Thomas Island to Ontario

Are your dates flexible? Find out the best times to travel from Saint Thomas Island to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Saint Thomas Island to Ontario

  • What is the cheapest flight from Saint Thomas Island to Ontario?

    In the last 3 days, the lowest price for a flight from Saint Thomas Island to Ontario was $452 for a one-way ticket and $769 for a round-trip.

  • Do I need a passport to fly between Saint Thomas Island and Ontario?

    Yes

  • Which airports will I be using when flying from Saint Thomas Island to Ontario?

    When flying out of Saint Thomas Island you will be using Saint Thomas Island Cyril E King. You will be landing at Ontario, also known as Ontario.

  • Which aircraft models fly most regularly from Saint Thomas Island to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Saint Thomas Island to Ontario?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Saint Thomas Island and Ontario, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Saint Thomas Island to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Saint Thomas Island to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Saint Thomas Island to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Saint Thomas Island is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Saint Thomas Island to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Saint Thomas Island with another airline. Booking your flights between Saint Thomas Island and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Saint Thomas Island to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Saint Thomas Island up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Saint Thomas Island to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Saint Thomas Island to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Saint Thomas Island to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
7.2Comfort
7.5Boarding
8.0Crew
6.9Entertainment
6.5Food
Airline reviews

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

6.0 GoodAnonymous, Mar 2025PHL - LAX
Read more American Airlines reviews

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

Would have been good to have a meal since it was a 5.5 hour flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

AA is always pretty solid. Was on time all the way around today so can’t complain!

Everything you need to know for your flight from Saint Thomas Island to Ontario

Information on your arrival and departure airports

Saint Thomas Island (STT)
Ontario (ONT)

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