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Cheap flights from Ontario to Saint Thomas Island from C$ 299

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STT
5 May — 12 May1
1 adult

Cheap flight deals from Ontario to Saint Thomas Island

Keep the following information in mind while searching for Ontario to Saint Thomas Island flight deals. Data was last updated 30 April 2025.

Round-trip from

C$ 538

One-way from

C$ 299

Popular in

December

Cheapest in

April

Average price

C$ 520
United Airlines
  • United Airlines
  • 12/5-14/5
  • 2 total stops
  • 16h 26m total
  • Ontario to Saint Thomas Island
Search Deals
12/6
  • 12/6
  • 2 total stops
  • 21h 48m total
  • Ontario to Saint Thomas Island
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 293 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Ontario to Saint Thomas Island

Cheapest flights from Ontario to Saint Thomas Island
Explore the most affordable flight options available from Ontario to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Mon 12/57:30 a.m.YYZ - STT
1 stop8h 13mUnited Airlines
Wed 14/52:10 p.m.STT - YYZ
1 stop8h 13mUnited Airlines
Deal found 28/4C$ 538
Mon 5/57:00 a.m.YUL - STT
1 stop8h 05mDelta
Wed 14/52:51 p.m.STT - YUL
1 stop9h 03mDelta
Deal found 28/4C$ 543
Mon 5/57:00 a.m.YUL - STT
1 stop9h 20mAmerican Airlines
Wed 14/55:10 p.m.STT - YUL
2 stops16h 40mAmerican Airlines
Deal found 28/4C$ 558
Thu 19/61:30 p.m.YYZ - STT
1 stop20h 18mMultiple Airlines
Thu 26/610:47 a.m.STT - YYZ
1 stop10h 13mMultiple Airlines
Deal found 28/4C$ 587
Mon 5/56:00 a.m.YYZ - STT
1 stop6h 43mDelta
Wed 14/51:17 p.m.STT - YYZ
1 stop10h 38mDelta
Deal found 29/4C$ 592
Mon 5/56:30 a.m.YYZ - STT
2 stops9h 50mAmerican Airlines
Wed 14/53:40 p.m.STT - YYZ
1 stop8h 11mAmerican Airlines
Deal found 29/4C$ 615
Thu 12/66:45 a.m.YUL - STT
1 stop27h 03mMultiple Airlines
Thu 19/610:47 a.m.STT - YUL
2 stops33h 10mMultiple Airlines
Deal found 28/4C$ 615
Thu 12/68:50 a.m.YTZ - STT
3 stops24h 58mMultiple Airlines
Thu 19/610:47 a.m.STT - YTZ
2 stops31h 23mMultiple Airlines
Deal found 28/4C$ 681
Sun 11/512:30 a.m.YYZ - STT
2 stops15h 13mAir Canada
Wed 14/52:10 p.m.STT - YYZ
1 stop23h 37mAir Canada
Deal found 28/4C$ 919
Sat 26/78:00 p.m.YUL - STT
2 stops17h 08mUnited Airlines
Wed 6/84:45 p.m.STT - YUL
2 stops19h 00mUnited Airlines
Deal found 28/4C$ 1,177
Wed 14/56:00 a.m.YUL - STT
1 stop9h 43mAir Canada
Mon 19/52:10 p.m.STT - YUL
1 stop22h 59mAir Canada
Deal found 29/4C$ 1,185

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Saint Thomas Island 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 629,999 searches. Data last updated 30 April 2025.
Use the filters below to find and compare flights from Ontario to Saint Thomas Island that are best for you.

Fly from

Ontario

Fly to

Saint Thomas Island

Route

Depart

Return

Price

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Mon 12/5

7:30 a.m.-3:43 p.m.

1 stop8h 13m

Saint Thomas Island Cyril E King

Wed 14/5

2:10 p.m.-10:23 p.m.

1 stop8h 13m

C$ 538

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Thu 19/6

1:30 p.m.-9:48 a.m.

1 stop20h 18m

Saint Thomas Island Cyril E King

Thu 26/6

10:47 a.m.-9:00 p.m.

1 stop10h 13m

C$ 587

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Wed 16/7

6:15 a.m.-3:00 p.m.

1 stop8h 45m

Saint Thomas Island Cyril E King

Wed 23/7

3:02 p.m.-10:09 p.m.

1 stop7h 07m

C$ 592

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Thu 12/6

6:45 a.m.-9:48 a.m.

1 stop27h 03m

Saint Thomas Island Cyril E King

Thu 19/6

10:47 a.m.-7:57 p.m.

2 stops33h 10m

C$ 615

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Thu 2/10

5:50 p.m.-4:00 p.m.

2 stops22h 10m

Saint Thomas Island Cyril E King

Mon 13/10

5:15 p.m.-1:25 p.m.

2 stops20h 10m

C$ 675

TorontoSaint Thomas Island

YTZ - STT

YTZSTT

Toronto Island

Thu 12/6

8:50 a.m.-9:48 a.m.

3 stops24h 58m

Saint Thomas Island Cyril E King

Thu 19/6

10:47 a.m.-6:10 p.m.

2 stops31h 23m

C$ 681

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Mon 12/5

6:30 a.m.-4:20 p.m.

2 stops9h 50m

Saint Thomas Island Cyril E King

Wed 14/5

3:40 p.m.-11:51 p.m.

1 stop8h 11m

C$ 684

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Sun 11/5

12:30 a.m.-3:43 p.m.

2 stops15h 13m

Saint Thomas Island Cyril E King

Wed 14/5

2:10 p.m.-1:47 p.m.

1 stop23h 37m

C$ 919

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Sat 26/7

8:00 p.m.-1:08 p.m.

2 stops17h 08m

Saint Thomas Island Cyril E King

Wed 6/8

4:45 p.m.-11:45 a.m.

2 stops19h 00m

C$ 1,177

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Wed 14/5

6:00 a.m.-3:43 p.m.

1 stop9h 43m

Saint Thomas Island Cyril E King

Mon 19/5

2:10 p.m.-1:09 p.m.

1 stop22h 59m

C$ 1,185

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 17 results
1
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Best time to book a flight from Ontario to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Ontario 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 Ontario to Saint Thomas Island

What is the cheapest time of day to fly from ON to STT?

Find hourly flight availability from Ontario to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Saint Thomas Island as you normally would.

Reviews of airlines servicing Saint Thomas Island

Get insights into the airlines that provide service to Saint Thomas Island. 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 Saint Thomas Island. Reviews last updated 30 April 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Ontario to Saint Thomas Island. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
8,696 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,929 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
Air Canada
7.0
Good
9,244 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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

  • What airport do you fly into for flights to Saint Thomas Island from Ontario?

    For a flight from Ontario to Saint Thomas Island, you will be flying into Cyril E King. Saint Thomas Island Cyril E King (STT) is just 4.6 km from the centre of the city.

  • What are the cheapest airlines to fly from Region of Ontario to Saint Thomas Island one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at C$ 309. American Airlines flights start at C$ 349 while deals on Air Canada start at C$ 500 one-way.

  • What are the most popular routes from Region of Ontario to Saint Thomas Island?

    The most popular flight routes from Region of Ontario to Saint Thomas Island are Toronto Pearson Intl - Saint Thomas Island Cyril E King, Montreal Pierre Elliott Trudeau Intl - Saint Thomas Island Cyril E King and Toronto Island - Saint Thomas Island Cyril E King.

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

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

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

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

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

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

See more FAQs

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Top 5 airlines flying from Ontario to Saint Thomas Island

Discover the top 5 airlines that operate flights from Ontario to Saint Thomas Island. 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 629,999 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 459AverageC$ 698FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 520AverageC$ 849FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 533AverageC$ 800FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJet EncoreCheapestC$ 865AverageC$ 1,110FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
Air CanadaCheapestC$ 984AverageC$ 1,130FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to Saint Thomas Island?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Saint Thomas Island. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Saint Thomas Island?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Saint Thomas Island from Ontario.

Can Cheapflights find flights from Ontario to Saint Thomas Island with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to Saint Thomas Island with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Saint Thomas Island become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Saint Thomas Island flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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