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Cheap flights from Ontario to Saint Thomas Island from C$ 407

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STT
1 Jun — 8 Jun1
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 2 May 2026.

Fri 8/56:10 a.m.
YYZ
-
STT
1 stop9h 33m
United Airlines
Fri 15/51:22 p.m.
STT
-
YYZ
1 stop9h 14m
United Airlines
Deal found 30/4C$ 752
Sun 14/64:50 p.m.
YYZ
-
STT
1 stop21h 26m
Multiple Airlines
Sun 21/64:39 p.m.
STT
-
YYZ
1 stop24h 06m
Multiple Airlines
Deal found 30/4C$ 758
Sun 7/66:45 a.m.
YUL
-
STT
3 stops30h 02m
Multiple Airlines
Sun 14/63:21 p.m.
STT
-
YUL
2 stops33h 04m
Multiple Airlines
Deal found 28/4C$ 775
Sun 17/56:00 a.m.
YUL
-
STT
1 stop7h 08m
United Airlines
Sat 23/54:45 p.m.
STT
-
YUL
1 stop7h 28m
United Airlines
Deal found 2/5C$ 813
Tue 21/76:02 p.m.
YYZ
-
STT
2 stops18h 50m
American Airlines
Fri 24/74:50 p.m.
STT
-
YYZ
2 stops18h 09m
American Airlines
Deal found 1/5C$ 819
Sun 10/56:10 a.m.
YYZ
-
STT
1 stop9h 33m
United Airlines
Thu 14/51:22 p.m.
STT
-
YYZ
1 stop9h 14m
United Airlines
Deal found 29/4C$ 841
Sun 6/127:14 p.m.
YYZ
-
STT
2 stops19h 11m
American Airlines
Sun 13/126:17 p.m.
STT
-
YYZ
2 stops16h 59m
American Airlines
Deal found 28/4C$ 854
Sat 13/67:20 a.m.
YYZ
-
STT
3 stops30h 56m
Multiple Airlines
Sat 20/64:39 p.m.
STT
-
YYZ
1 stop17h 05m
Multiple Airlines
Deal found 29/4C$ 862
Tue 19/52:32 p.m.
YUL
-
STT
2 stops21h 03m
American Airlines
Thu 28/511:43 a.m.
STT
-
YUL
1 stop22h 07m
American Airlines
Deal found 29/4C$ 862
Fri 8/57:10 a.m.
YYZ
-
STT
1 stop31h 06m
Multiple Airlines
Fri 15/53:21 p.m.
STT
-
YYZ
2 stops44h 14m
Multiple Airlines
Deal found 30/4C$ 868
Sat 7/113:59 p.m.
YUL
-
STT
2 stops22h 16m
American Airlines
Tue 24/116:17 p.m.
STT
-
YUL
2 stops20h 32m
American Airlines
Deal found 2/5C$ 870
Wed 11/112:29 p.m.
YUL
-
STT
2 stops23h 46m
American Airlines
Mon 23/116:17 p.m.
STT
-
YUL
2 stops18h 58m
American Airlines
Deal found 2/5C$ 876

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 2 May 2026.

Round-trip from

C$ 758

One-way from

C$ 407

Popular in

July

Cheapest in

August

Average price

C$ 815
14/6-21/6
  • 14/6-21/6
  • 2 total stops
  • 45h 32m total
  • Ontario to Saint Thomas Island
Search Deals
30/5
  • 30/5
  • 2 total stops
  • 42h 56m total
  • Ontario to Saint Thomas Island
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 2 May 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
Quickest round-trip

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

6:00 a.m.-1:08 p.m.

1 stop7h 08m

Saint Thomas Island Cyril E King

Sat 23/5

4:45 p.m.-12:13 a.m.

1 stop7h 28m

C$ 813

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Tue 21/7

6:02 p.m.-12:52 p.m.

2 stops18h 50m

Saint Thomas Island Cyril E King

Fri 24/7

4:50 p.m.-10:59 a.m.

2 stops18h 09m

C$ 819

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Sun 7/6

6:45 a.m.-12:47 p.m.

3 stops30h 02m

Saint Thomas Island Cyril E King

Sun 14/6

3:21 p.m.-12:25 a.m.

3 stops33h 04m

C$ 822

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Sat 13/6

7:25 p.m.-2:16 p.m.

2 stops18h 51m

Saint Thomas Island Cyril E King

Sat 20/6

4:39 p.m.-9:44 a.m.

1 stop17h 05m

C$ 854

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Sun 12/7

6:00 a.m.-1:48 p.m.

1 stop7h 48m

Saint Thomas Island Cyril E King

Wed 15/7

4:50 p.m.-10:59 a.m.

2 stops18h 09m

C$ 934

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Wed 27/5

6:15 a.m.-3:28 p.m.

1 stop9h 13m

Saint Thomas Island Cyril E King

Wed 3/6

1:16 p.m.-9:55 p.m.

1 stop8h 39m

C$ 944

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Thu 28/5

6:00 a.m.-12:06 p.m.

1 stop30h 06m

Saint Thomas Island Cyril E King

Thu 4/6

4:38 p.m.-5:47 p.m.

1 stop25h 09m

C$ 968

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Mon 15/6

6:02 p.m.-12:44 p.m.

2 stops18h 42m

Saint Thomas Island Cyril E King

Mon 22/6

4:49 p.m.-10:58 a.m.

2 stops18h 09m

C$ 972

TorontoSaint Thomas Island

YYZ - STT

YYZSTT

Toronto Pearson Intl

Thu 8/10

7:20 a.m.-2:35 p.m.

1 stop7h 15m

Saint Thomas Island Cyril E King

Mon 12/10

1:50 p.m.-10:20 a.m.

2 stops20h 30m

C$ 976

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

4:10 p.m.-2:16 p.m.

2 stops22h 06m

Saint Thomas Island Cyril E King

Sat 23/5

1:52 p.m.-10:16 a.m.

2 stops20h 24m

C$ 980

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/4

Showing 1-10 of 38 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

How much does it cost to fly round-trip from Region of Ontario to Saint Thomas Island?

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 7h 08m. United Airlines provides one of the quickest options available for as low as C$ 813. The distance between Region of Ontario and Saint Thomas Island is about 3121 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, Toronto Island - Saint Thomas Island Cyril E King and Montreal Pierre Elliott Trudeau Intl - 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 2 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 582AverageC$ 584FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 589AverageC$ 829FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 623AverageC$ 781FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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