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Cheap flights from Ontario to Saint Thomas Island from C$ 366

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 30/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STT
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 734

One-way from

C$ 366

Popular in

December

Cheapest in

September

Average price

C$ 949
2/7-9/7
  • 2/7-9/7
  • 3 total stops
  • 51h 59m total
  • Ontario to Saint Thomas Island
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United Airlines
  • United Airlines
  • 30/6
  • 1 total stop
  • 9h 33m total
  • Ontario to Saint Thomas Island
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 230 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 12 June 2025.

Fri 13/67:25 p.m.YYZ - STT
1 stop15h 24mAmerican Airlines
Thu 19/611:39 a.m.STT - YYZ
1 stop11h 25mAmerican Airlines
Deal found 11/6C$ 617
Wed 2/76:45 a.m.YUL - STT
2 stops29h 44mMultiple Airlines
Wed 9/74:05 p.m.STT - YUL
1 stop22h 15mMultiple Airlines
Deal found 10/6C$ 734
Wed 16/76:10 a.m.YYZ - STT
1 stop9h 33mUnited Airlines
Wed 23/74:45 p.m.STT - YYZ
1 stop24h 34mUnited Airlines
Deal found 11/6C$ 829
Sun 15/66:15 a.m.YYZ - STT
3 stops27h 33mMultiple Airlines
Wed 18/63:03 p.m.STT - YYZ
1 stop18h 16mMultiple Airlines
Deal found 11/6C$ 957
Mon 14/72:20 p.m.YUL - STT
1 stop21h 57mUnited Airlines
Fri 18/74:45 p.m.STT - YUL
1 stop27h 00mUnited Airlines
Deal found 11/6C$ 971
Fri 11/77:00 a.m.YUL - STT
1 stop8h 00mDelta
Fri 18/71:27 p.m.STT - YUL
1 stop10h 28mDelta
Deal found 11/6C$ 1,221
Sun 28/123:00 p.m.YYZ - STT
1 stop20h 00mAir Canada
Sat 3/15:35 p.m.STT - YYZ
2 stops26h 35mAir Canada
Deal found 11/6C$ 1,533
Sat 22/116:15 p.m.YUL - STT
1 stop16h 45mAir Canada
Sat 29/115:25 p.m.STT - YUL
2 stops25h 58mAir Canada
Deal found 12/6C$ 1,557
Sat 27/123:25 p.m.YTZ - STT
2 stops19h 35mAir Canada
Sat 3/15:35 p.m.STT - YTZ
2 stops19h 15mAir Canada
Deal found 12/6C$ 2,017
Sat 27/126:05 p.m.YTZ - STT
2 stops22h 15mMultiple Airlines
Sat 3/12:35 p.m.STT - YTZ
3 stops32h 40mMultiple Airlines
Deal found 12/6C$ 2,521

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 12 June 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

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Wed 2/7

6:45 a.m.-12:29 p.m.

2 stops29h 44m

Saint Thomas Island Cyril E King

Wed 9/7

4:05 p.m.-2:20 p.m.

1 stop22h 15m

C$ 734

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Wed 16/7

6:10 a.m.-3:43 p.m.

1 stop9h 33m

Saint Thomas Island Cyril E King

Wed 23/7

4:45 p.m.-5:19 p.m.

1 stop24h 34m

C$ 829

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Wed 16/7

6:00 a.m.-3:22 p.m.

1 stop9h 22m

Saint Thomas Island Cyril E King

Wed 23/7

11:34 a.m.-9:30 p.m.

1 stop9h 56m

C$ 872

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Mon 14/7

2:20 p.m.-12:17 p.m.

1 stop21h 57m

Saint Thomas Island Cyril E King

Fri 18/7

4:45 p.m.-7:45 p.m.

1 stop27h 00m

C$ 971

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Fri 11/7

7:00 a.m.-3:00 p.m.

1 stop8h 00m

Saint Thomas Island Cyril E King

Fri 18/7

1:27 p.m.-11:55 p.m.

1 stop10h 28m

C$ 1,221

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Sat 22/11

6:15 p.m.-12:00 p.m.

1 stop16h 45m

Saint Thomas Island Cyril E King

Sat 29/11

5:25 p.m.-6:23 p.m.

2 stops25h 58m

C$ 1,557

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Mon 30/6

6:10 a.m.-3:43 p.m.

1 stop9h 33m

C$ 366

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Mon 30/6

4:40 p.m.-1:58 p.m.

2 stops21h 18m

C$ 433

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Sat 22/11

8:10 p.m.-12:00 p.m.

1 stop14h 50m

C$ 746

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Fri 21/11

6:00 a.m.-3:50 p.m.

1 stop8h 50m

C$ 874

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

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 12 June 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 12 June 2025.
Delta
8.0
Very good
7,950 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Air Canada
7.1
Good
9,531 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

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$ 366. Air Canada flights start at C$ 746 while deals on American Airlines start at C$ 874 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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 453AverageC$ 658FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 514AverageC$ 833FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 527AverageC$ 780FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJet EncoreCheapestC$ 855AverageC$ 1,112FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
Air CanadaCheapestC$ 972AverageC$ 1,151FlexibilityNo 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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