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$496+ Cheap flights from Saint Thomas Island (STT) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
STT — ONT
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
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Cheap flight deals from Saint Thomas Island to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Saint Thomas Island (STT) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$639
(Delta)

One-way from

$496
(United)

Popular in

October

Cheapest in

May

Average price

$428
Provider with most accurate pricing for Saint Thomas Island Cyril E King-Ontario flight deals.
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Provider most trusted by Cheapflights users for Saint Thomas Island Cyril E King-Ontario flights.
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From Saint Thomas Island Cyril E King to Ontario
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One-way flight from Saint Thomas Island Cyril E King to Ontario
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Highest demand for flights based on searches. 33% potential increase in price ($284 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Saint Thomas Island to Ontario

Cheapest flights from Saint Thomas Island to Ontario
Explore the most affordable flight options available from Saint Thomas Island to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 17, 2025.

This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/11:55 pmSTT - ONT
1 stop11h 41mDelta
mar. 5/62:35 pmONT - STT
2 stops18h 32mDelta
Deal found 4/17$639
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/111:30 amSTT - ONT
1 stop12h 29mAmerican Airlines
lun. 5/57:25 pmONT - STT
2 stops12h 30mAmerican Airlines
Deal found 4/17$729
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/64:45 pmSTT - ONT
2 stops27h 40mUnited Airlines
jue. 7/106:38 pmONT - STT
2 stops14h 39mUnited Airlines
Deal found 4/17$930

Cheapflights Fare Finder

Customize your flight search to find flights from Saint Thomas Island to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 17, 2025.
Use the filters below to find and compare flights from Saint Thomas Island to Ontario that are best for you.

Fly from

Saint Thomas Island

Fly to

Ontario

Route

Depart

Return

Price

Saint Thomas IslandOntario

STT - ONT

STTONT

Saint Thomas Island Cyril E King

jue. 5/1

1:55 pm-10:36 pm

1 stop11h 41m

Ontario

mar. 5/6

2:35 pm-12:07 pm

2 stops18h 32m

$639

Saint Thomas IslandOntario

STT - ONT

STTONT

Saint Thomas Island Cyril E King

jue. 5/1

11:30 am-8:59 pm

1 stop12h 29m

Ontario

lun. 5/5

7:25 pm-10:55 am

2 stops12h 30m

$729

Saint Thomas IslandOntario

STT - ONT

STTONT

Saint Thomas Island Cyril E King

dom. 7/6

4:45 pm-5:25 pm

2 stops27h 40m

Ontario

jue. 7/10

6:38 pm-12:17 pm

2 stops14h 39m

$930

Saint Thomas IslandOntario

STT - ONT

STTONT

Saint Thomas Island Cyril E King

sáb. 5/3

8:39 am-8:53 pm

2 stops15h 14m

$496

Saint Thomas IslandOntario

STT - ONT

STTONT

Saint Thomas Island Cyril E King

jue. 5/1

4:45 pm-3:09 pm

2 stops25h 24m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Compare providers for flights from Saint Thomas Island to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Saint Thomas Island to Ontario in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Saint Thomas Island-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Saint Thomas Island-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Saint Thomas Island-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Saint Thomas Island-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Saint Thomas Island-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Saint Thomas Island to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Saint Thomas Island with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Saint Thomas Island to Ontario?

Currently, August is the cheapest month in which you can book a flight from Saint Thomas Island to Ontario (average of $246). Flying from Saint Thomas Island to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated abril 17, 2025.
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Saint Thomas Island to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Saint Thomas Island to Ontario round-trip?

    According to our current data, Delta ($639), American Airlines ($729), and United Airlines ($930) offers the cheapest pricing from Saint Thomas Island to Ontario.

  • Can I find deals for flights from Saint Thomas Island to Ontario that include hotel bookings?

    Yes. In addition to deals on Saint Thomas Island to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Saint Thomas Island to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Thomas Island to Ontario.

  • Can I find deals for business class flights from Saint Thomas Island to Ontario?

    Yes. Cheapflights offers flight deals from Saint Thomas Island to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Saint Thomas Island to Ontario (average of $246). Flying from Saint Thomas Island to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Saint Thomas Island to Ontario

Discover the top airline that operate flights from Saint Thomas Island to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$594Average$594FlexibilityNo cancel feeOn-time71%

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