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Cheap flights from Ontario to Saint Thomas Island from C$ 416

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STT
24 Jul — 31 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Saint Thomas Island

Enter your travel dates to find the best prices.

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 24 June 2026.

Wed 21/105:15 p.m.
YYZ
-
STT
2 stops19h 25m
American Airlines
Mon 26/105:40 p.m.
STT
-
YYZ
2 stops19h 35m
American Airlines
Deal found 22/6C$ 787
Fri 18/95:27 p.m.
YYZ
-
STT
2 stops19h 24m
American Airlines
Fri 25/91:41 p.m.
STT
-
YYZ
2 stops22h 54m
American Airlines
Deal found 23/6C$ 840
Thu 16/76:10 a.m.
YYZ
-
STT
1 stop9h 33m
United Airlines
Wed 22/74:45 p.m.
STT
-
YYZ
1 stop7h 09m
United Airlines
Deal found 23/6C$ 847
Fri 28/87:27 p.m.
YYZ
-
STT
2 stops17h 26m
American Airlines
Tue 1/91:49 p.m.
STT
-
YYZ
2 stops21h 21m
American Airlines
Deal found 23/6C$ 931
Fri 28/86:34 p.m.
YYZ
-
STT
1 stop19h 00m
Delta
Tue 1/92:49 p.m.
STT
-
YYZ
1 stop19h 36m
Delta
Deal found 23/6C$ 952
Sun 11/107:00 a.m.
YYZ
-
STT
2 stops12h 20m
Multiple Airlines
Sun 18/101:56 p.m.
STT
-
YYZ
2 stops19h 23m
Multiple Airlines
Deal found 19/6C$ 978
Fri 28/87:00 p.m.
YYZ
-
STT
1 stop20h 43m
Multiple Airlines
Tue 1/91:46 p.m.
STT
-
YYZ
2 stops10h 08m
Multiple Airlines
Deal found 23/6C$ 1,037
Sat 18/77:00 a.m.
YYZ
-
STT
1 stop7h 54m
United Airlines
Sat 25/76:05 p.m.
STT
-
YYZ
1 stop17h 38m
United Airlines
Deal found 20/6C$ 1,054
Tue 8/127:00 a.m.
YUL
-
STT
1 stop28h 00m
United Airlines
Fri 11/121:02 p.m.
STT
-
YUL
1 stop7h 36m
United Airlines
Deal found 23/6C$ 1,075
Sun 6/96:10 a.m.
YUL
-
STT
2 stops13h 10m
Multiple Airlines
Sun 13/98:39 a.m.
STT
-
YUL
2 stops13h 27m
Multiple Airlines
Deal found 19/6C$ 1,122
Sun 6/97:14 a.m.
YUL
-
STT
1 stop8h 38m
American Airlines
Sun 13/91:41 p.m.
STT
-
YUL
2 stops20h 08m
American Airlines
Deal found 19/6C$ 1,126
Tue 8/1211:10 a.m.
YUL
-
STT
2 stops23h 50m
Air Canada
Fri 11/122:15 p.m.
STT
-
YUL
1 stop22h 42m
Air Canada
Deal found 23/6C$ 1,142

Find 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 24 June 2026.

Round-trip from

C$ 787

One-way from

C$ 416

Popular in

December

Cheapest in

August

Average price

C$ 861
American Airlines
  • American Airlines
  • 21/10-26/10
  • 4 total stops
  • 39h 00m total
  • Ontario to Saint Thomas Island
Search Deals
United Airlines
  • United Airlines
  • 5/8
  • 1 total stop
  • 9h 33m total
  • Ontario to Saint Thomas Island
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 24 June 2026.
Use the filters below to find and compare flights from Ontario to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Fri 18/9

5:27 p.m.-12:51 p.m.

2 stops19h 24m

Saint Thomas Island Cyril E King

Fri 25/9

1:41 p.m.-12:35 p.m.

2 stops22h 54m

C$ 840

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Fri 28/8

6:34 p.m.-1:34 p.m.

1 stop19h 00m

Saint Thomas Island Cyril E King

Tue 1/9

2:49 p.m.-10:25 a.m.

1 stop19h 36m

C$ 952

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Sun 11/10

7:00 a.m.-7:20 p.m.

2 stops12h 20m

Saint Thomas Island Cyril E King

Sun 18/10

1:56 p.m.-9:19 a.m.

2 stops19h 23m

C$ 978

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Fri 28/8

7:00 p.m.-3:43 p.m.

1 stop20h 43m

Saint Thomas Island Cyril E King

Tue 1/9

1:46 p.m.-11:54 p.m.

2 stops10h 08m

C$ 1,037

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Sat 18/7

7:00 a.m.-2:54 p.m.

1 stop7h 54m

Saint Thomas Island Cyril E King

Sat 25/7

6:05 p.m.-11:43 a.m.

1 stop17h 38m

C$ 1,054

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Tue 8/12

7:00 a.m.-12:00 p.m.

1 stop28h 00m

Saint Thomas Island Cyril E King

Fri 11/12

1:02 p.m.-7:38 p.m.

1 stop7h 36m

C$ 1,075

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

6:10 a.m.-7:20 p.m.

2 stops13h 10m

Saint Thomas Island Cyril E King

Sun 13/9

8:39 a.m.-10:06 p.m.

2 stops13h 27m

C$ 1,122

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

7:14 a.m.-3:52 p.m.

1 stop8h 38m

Saint Thomas Island Cyril E King

Sun 13/9

1:41 p.m.-9:49 a.m.

2 stops20h 08m

C$ 1,126

TorontoSaint Thomas Island

YTZ - STT

YTZSTT

Toronto Island

Thu 6/8

8:30 p.m.-3:09 p.m.

2 stops18h 39m

Saint Thomas Island Cyril E King

Thu 13/8

3:45 p.m.-8:00 a.m.

2 stops16h 15m

C$ 1,229
Quickest round-trip

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Thu 16/7

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

1 stop9h 33m

Saint Thomas Island Cyril E King

Wed 22/7

1:46 p.m.-11:59 p.m.

2 stops10h 13m

C$ 1,233

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/6

Showing 1-10 of 37 resultsSorted by cheapest first
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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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Region of Ontario to Saint Thomas Island?

    A quick flight from Region of Ontario to Saint Thomas Island can take about 19h. American Airlines provides one of the quickest options available for as low as C$ 952. The distance between Region of Ontario and Saint Thomas Island is about 3132 km. This flight may include one or multiple stops.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Ontario to Saint Thomas Island

Discover the top 3 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 24 June 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 608AverageC$ 610FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 615AverageC$ 1,016FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 651AverageC$ 853FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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