Which airports can I use when flying from Saint Thomas Island to Ontario?

Flights from Saint Thomas Island to Ontario usually depart from Saint Thomas Island Cyril E King (STT) and arrive at Ontario (ONT).

What cabin classes can I book on flights from Saint Thomas Island to Ontario?

Only Economy Class is available on flights from Saint Thomas Island to Ontario.

Can I save money by using flexible dates for flights from Saint Thomas Island to Ontario?

Yes. Flexible dates can save you up to 27% on flights from Saint Thomas Island to Ontario. Monday is the cheapest departure day at $548 round-trip on average, while Tuesday is the most expensive at $747, a difference of $199. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Ontario?

Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

How long is a flight from Saint Thomas Island to Ontario?

A nonstop flight from Saint Thomas Island to Ontario takes about 00m, covering 3,396 miles.

Do I need a passport to fly from Saint Thomas Island to Ontario?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Saint Thomas Island to Ontario changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $608 to $1,580. That means the highest observed fare was about 3x higher than the lowest one.

How are flight prices from Saint Thomas Island to Ontario looking right now?

One-way fares from Saint Thomas Island to Ontario are currently lower than usual. Average one-way flight prices are about $409, which is 35% below the typical average for this route.

What is the time difference between Saint Thomas Island and Ontario?

Ontario is 4 hours behind Saint Thomas Island (Pacific Time vs Atlantic Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ontario Airport (ONT)?

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include: • Fox • Europcar • Thrifty • Alamo • Dollar

How much is a round-trip flight from Saint Thomas Island to Ontario?

Round-trip flights from Saint Thomas Island to Ontario typically range from $548 to $747. The lowest price found in the past 5 days was $608, on United Airlines.

Which airline is the cheapest to fly from Saint Thomas Island to Ontario?

United Airlines ($608) and Delta ($678) are the cheapest airlines to fly round-trip from Saint Thomas Island to Ontario according to KAYAK data over the last 5 days.

$306 CHEAP FLIGHTS from Saint Thomas Island to Ontario (STT - ONT)

Save 26% or more on flights. Compare deals from all over the web.

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Cheapest round-trip

$608

Typical prices: $548-$747

United Airlines

Fri 12/21Fri 12/28

STT - ONT • 1 stop

Cheapest one-way

$306

Typical prices: $572-$626

Delta

Mon 12/24

STT - ONT • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Saint Thomas Island and Ontario. You'll need to take a connecting flight to reach the destination.

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Flight Deals

Cheap Flights from Saint Thomas Island to Ontario (STT-ONT)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

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

Mon, Dec 21 - Mon, Dec 28

3:35 pm - 10:11 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

10h 36m1 stop Houston George Bush Intcntl

11:52 pm - 5:50 pmONT Ontario-STT Saint Thomas Island Cyril E King

13h 58m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$608United Airlines

Mon, Dec 21 - Wed, Dec 30

3:20 pm - 11:40 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

12h 20m1 stop Atlanta Hartsfield-Jackson

10:35 pm - 3:05 pmONT Ontario-STT Saint Thomas Island Cyril E King

12h 30m1 stop Atlanta Hartsfield-Jackson

$678Delta

Mon, Dec 21 - Mon, Dec 28

1:07 pm - 10:31 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

13h 24m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

11:52 pm - 5:50 pmONT Ontario-STT Saint Thomas Island Cyril E King

13h 58m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$683United Airlines

Mon, Dec 21 - Mon, Dec 28

2:14 pm - 10:54 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

12h 40m1 stop Charlotte Douglas

10:10 pm - 3:42 pmONT Ontario-STT Saint Thomas Island Cyril E King

13h 32m1 stop Charlotte Douglas

$708American Airlines

Mon, Dec 21 - Wed, Dec 30

3:00 pm - 10:31 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

11h 31m1 stop Chicago O'Hare Intl

11:52 pm - 5:50 pmONT Ontario-STT Saint Thomas Island Cyril E King

13h 58m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$708United Airlines

Mon, Dec 21 - Thu, Dec 31

3:00 pm - 10:31 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

11h 31m1 stop Chicago O'Hare Intl

6:27 pm - 12:05 pmONT Ontario-STT Saint Thomas Island Cyril E King

13h 38m2 stops San Francisco Newark

$708United Airlines

Sun, Dec 20 - Mon, Dec 28

3:35 pm - 10:11 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

10h 36m1 stop Houston George Bush Intcntl

11:52 pm - 2:31 pmONT Ontario-STT Saint Thomas Island Cyril E King

10h 39m1 stop Chicago O'Hare Intl

$708United Airlines

Mon, Dec 21 - Tue, Dec 29

3:00 pm - 10:31 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

11h 31m1 stop Chicago O'Hare Intl

11:52 pm - 5:50 pmONT Ontario-STT Saint Thomas Island Cyril E King

13h 58m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$708United Airlines

Mon, Dec 21 - Thu, Dec 31

3:35 pm - 10:11 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

10h 36m1 stop Houston George Bush Intcntl

11:52 pm - 2:31 pmONT Ontario-STT Saint Thomas Island Cyril E King

10h 39m1 stop Chicago O'Hare Intl

$708United Airlines

Mon, Dec 21 - Tue, Dec 29

3:00 pm - 10:31 pmSTT Saint Thomas Island Cyril E King-ONT Ontario

11h 31m1 stop Chicago O'Hare Intl

11:52 pm - 2:31 pmONT Ontario-STT Saint Thomas Island Cyril E King

10h 39m1 stop Chicago O'Hare Intl

$708United Airlines

Booking Insights

Price, demand and travel trends for Saint Thomas Island to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

How much is a round-trip flight from Saint Thomas Island to Ontario? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Saint Thomas Island to Ontario departing in december.

Find deals

Cheapest flight	$306

One-way 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.

What cabin classes can I book on flights from Saint Thomas Island to Ontario?
Only Economy Class is available on flights from Saint Thomas Island to Ontario.
How long is a flight from Saint Thomas Island to Ontario?
A nonstop flight from Saint Thomas Island to Ontario takes about 00m, covering 3,396 miles.
Do I need a passport to fly from Saint Thomas Island to Ontario?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Saint Thomas Island to Ontario changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $608 to $1,580. That means the highest observed fare was about 3x higher than the lowest one.
How are flight prices from Saint Thomas Island to Ontario looking right now?
One-way fares from Saint Thomas Island to Ontario are currently lower than usual. Average one-way flight prices are about $409, which is 35% below the typical average for this route.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Alamo
• Dollar
Which airports can I use when flying from Saint Thomas Island to Ontario?
Flights from Saint Thomas Island to Ontario usually depart from Saint Thomas Island Cyril E King (STT) and arrive at Ontario (ONT).
Can I save money by using flexible dates for flights from Saint Thomas Island to Ontario?
Yes. Flexible dates can save you up to 27% on flights from Saint Thomas Island to Ontario. Monday is the cheapest departure day at $548 round-trip on average, while Tuesday is the most expensive at $747, a difference of $199.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Saint Thomas Island and Ontario?
Ontario is 4 hours behind Saint Thomas Island (Pacific Time vs Atlantic Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ontario?
Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

If your dates are flexible, aim for a Monday departure and avoid flying on Tuesday. On this route, Monday flights average $548, about $199 less than Tuesday fares (27% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

• Azure Hotel & Suites, Trademark Collection by Wyndham
• Ontario Airport Inn
• Holiday Inn Ontario Airport By IHG

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STT - ONT

$306 Find Cheap Flights from Saint Thomas Island to Ontario - Compare and Save

Everything you should know

Cheap Flights from Saint Thomas Island to Ontario (STT-ONT)

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

Recent one-way flight deals from Saint Thomas Island to Ontario

Price, demand and travel trends for Saint Thomas Island to Ontario flights

How much is a round-trip flight from Saint Thomas Island to Ontario?

Which airline is the cheapest to fly from Saint Thomas Island to Ontario?

Key details for Saint Thomas Island to Ontario flights

Cheapest flight

When to book flights from Saint Thomas Island to Ontario

Your Saint Thomas Island to Ontario flight questions, answered

Your guide to booking Saint Thomas Island to Ontario flights

More options for your flight from Saint Thomas Island to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Saint Thomas Island to Ontario

Find direct flights to and from Saint Thomas Island and Ontario

Flights from domestic origins to Ontario

Flights to other popular destinations

Find deals for your return flight