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Cheap flights from Ontario to Saint Thomas Island from C$ 435

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STT
5 Sep — 12 Sep1
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 6 August 2026.

Sat 29/87:30 a.m. -
1 stop8h 13m
Sat 5/92:10 p.m. -
1 stop8h 13m
Deal found 2/8C$ 695
Mon 7/127:14 p.m. -
2 stops19h 11m
Thu 10/1212:27 p.m. -
1 stop7h 01m
Deal found 5/8C$ 753
Fri 6/115:14 p.m. -
2 stops18h 03m
Fri 13/113:15 p.m. -
1 stop9h 22m
Deal found 5/8C$ 792
Tue 24/113:57 p.m. -
2 stops21h 30m
Wed 2/124:22 p.m. -
2 stops18h 50m
Deal found 6/8C$ 838
Wed 25/113:57 p.m. -
2 stops19h 15m
Wed 2/124:22 p.m. -
2 stops18h 50m
Deal found 6/8C$ 844
Thu 8/104:15 p.m. -
2 stops22h 40m
Mon 12/103:46 p.m. -
2 stops20h 40m
Deal found 2/8C$ 931
Fri 28/812:30 a.m. -
2 stops15h 13m
Sat 5/92:10 p.m. -
1 stop20h 30m
Deal found 2/8C$ 933
Thu 12/117:05 a.m. -
1 stop7h 48m
Mon 16/113:15 p.m. -
2 stops21h 15m
Deal found 3/8C$ 944
Fri 13/117:05 a.m. -
1 stop7h 48m
Sat 21/113:15 p.m. -
2 stops22h 08m
Deal found 1/8C$ 1,028
Mon 21/96:00 a.m. -
2 stops13h 20m
Sat 26/94:45 p.m. -
1 stop21h 55m
Deal found 2/8C$ 1,097
Tue 3/1112:10 p.m. -
2 stops24h 46m
Thu 5/111:07 p.m. -
2 stops28h 34m
Deal found 4/8C$ 1,201
Sat 21/114:06 p.m. -
2 stops21h 21m
Sat 28/1112:35 p.m. -
1 stop11h 16m
Deal found 3/8C$ 1,257

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 6 August 2026.

Round-trip from

C$ 695

One-way from

C$ 435
United Airlines
  • United Airlines
  • 29/8-5/9
  • 2 total stops
  • 16h 26m total
  • Ontario to Saint Thomas Island
Search Deals
American Airlines
  • American Airlines
  • 30/1
  • 2 total stops
  • 21h 03m total
  • Ontario to Saint Thomas Island
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 6 August 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

TorontoSaint Thomas Island

YYZ Toronto Pearson Intl - STT Saint Thomas Island Cyril E King

YYZSTT

Toronto Pearson Intl

Sat 29/8

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

1 stop8h 13m

Saint Thomas Island Cyril E King

Sat 5/9

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

1 stop8h 13m

C$ 706

TorontoSaint Thomas Island

YYZ Toronto Pearson Intl - STT Saint Thomas Island Cyril E King

YYZSTT

Toronto Pearson Intl

Tue 26/1

6:15 a.m.-4:15 p.m.

1 stop9h 00m

Saint Thomas Island Cyril E King

Fri 29/1

3:10 p.m.-4:51 p.m.

1 stop26h 41m

C$ 843

TorontoSaint Thomas Island

YYZ Toronto Pearson Intl - STT Saint Thomas Island Cyril E King

YYZSTT

Toronto Pearson Intl

Sun 24/1

6:15 a.m.-3:05 p.m.

1 stop7h 50m

Saint Thomas Island Cyril E King

Thu 28/1

3:10 p.m.-11:09 a.m.

1 stop20h 59m

C$ 845

MontrealSaint Thomas Island

YUL Montreal Pierre Elliott Trudeau Intl - STT Saint Thomas Island Cyril E King

YULSTT

Montreal Pierre Elliott Trudeau Intl

Fri 15/1

3:59 p.m.-2:02 p.m.

2 stops21h 03m

Saint Thomas Island Cyril E King

Mon 25/1

6:39 p.m.-12:24 p.m.

2 stops18h 45m

C$ 906

MontrealSaint Thomas Island

YUL Montreal Pierre Elliott Trudeau Intl - STT Saint Thomas Island Cyril E King

YULSTT

Montreal Pierre Elliott Trudeau Intl

Thu 12/11

7:05 a.m.-3:53 p.m.

1 stop7h 48m

Saint Thomas Island Cyril E King

Mon 16/11

3:15 p.m.-11:30 a.m.

2 stops21h 15m

C$ 944

TorontoSaint Thomas Island

YYZ Toronto Pearson Intl - STT Saint Thomas Island Cyril E King

YYZSTT

Toronto Pearson Intl

Sat 7/11

6:07 p.m.-12:17 p.m.

2 stops17h 10m

Saint Thomas Island Cyril E King

Sat 21/11

4:40 p.m.-11:47 p.m.

1 stop8h 07m

C$ 966

MontrealSaint Thomas Island

YUL Montreal Pierre Elliott Trudeau Intl - STT Saint Thomas Island Cyril E King

YULSTT

Montreal Pierre Elliott Trudeau Intl

Fri 13/11

2:24 p.m.-12:17 p.m.

2 stops20h 53m

Saint Thomas Island Cyril E King

Sat 21/11

3:15 p.m.-12:23 p.m.

2 stops22h 08m

C$ 1,028

MontrealSaint Thomas Island

YUL Montreal Pierre Elliott Trudeau Intl - STT Saint Thomas Island Cyril E King

YULSTT

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

6:00 a.m.-7:20 p.m.

2 stops13h 20m

Saint Thomas Island Cyril E King

Sat 26/9

4:45 p.m.-2:40 p.m.

1 stop21h 55m

C$ 1,097

MontrealSaint Thomas Island

YUL Montreal Pierre Elliott Trudeau Intl - STT Saint Thomas Island Cyril E King

YULSTT

Montreal Pierre Elliott Trudeau Intl

Thu 14/1

6:15 p.m.-12:40 p.m.

1 stop17h 25m

Saint Thomas Island Cyril E King

Sat 23/1

4:15 p.m.-11:51 p.m.

1 stop8h 36m

C$ 1,139

MontrealSaint Thomas Island

YUL Montreal Pierre Elliott Trudeau Intl - STT Saint Thomas Island Cyril E King

YULSTT

Montreal Pierre Elliott Trudeau Intl

Tue 19/1

3:10 p.m.-12:00 p.m.

2 stops19h 50m

Saint Thomas Island Cyril E King

Thu 21/1

5:25 p.m.-8:32 a.m.

1 stop16h 07m

C$ 1,142

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

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

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 7h 50m. United Airlines provides one of the quickest options available for as low as C$ 843. 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

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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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 411AverageC$ 828FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 602AverageC$ 604FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 645AverageC$ 777FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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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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