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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 momondo user in the last 72 hours by searching for a flight from Ontario to Saint Thomas Island departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:15 p.m. - 12:40 p.m.
YYZ
-
STT
19h 25m
2 stops
American Airlines Logo
5:40 p.m. - 1:15 p.m.
STT
-
YYZ
19h 35m
2 stops
C$ 787American Airlines
Wed, 21 Oct - Mon, 26 Oct
American Airlines Logo
5:27 p.m. - 12:51 p.m.
YYZ
-
STT
19h 24m
2 stops
American Airlines Logo
1:41 p.m. - 12:35 p.m.
STT
-
YYZ
22h 54m
2 stops
C$ 840American Airlines
Fri, 18 Sep - Fri, 25 Sep
American Airlines Logo
6:04 p.m. - 12:51 p.m.
YYZ
-
STT
18h 47m
2 stops
American Airlines Logo
1:41 p.m. - 10:59 a.m.
STT
-
YYZ
21h 18m
2 stops
C$ 841American Airlines
Fri, 18 Sep - Fri, 25 Sep
United Airlines Logo
6:10 a.m. - 3:43 p.m.
YYZ
-
STT
9h 33m
1 stop
United Airlines Logo
4:45 p.m. - 11:54 p.m.
STT
-
YYZ
7h 09m
1 stop
C$ 847United Airlines
Thu, 16 Jul - Wed, 22 Jul
Delta Logo
6:34 p.m. - 1:34 p.m.
YYZ
-
STT
19h 00m
1 stop
Delta Logo
2:49 p.m. - 10:25 a.m.
STT
-
YYZ
19h 36m
1 stop
C$ 952Delta
Fri, 28 Aug - Tue, 1 Sep
Multiple Airlines Logo
7:00 a.m. - 7:20 p.m.
YYZ
-
STT
12h 20m
2 stops
Multiple Airlines Logo
1:56 p.m. - 9:19 a.m.
STT
-
YYZ
19h 23m
2 stops
C$ 978Multiple Airlines
Sun, 11 Oct - Sun, 18 Oct
United Airlines Logo
7:00 a.m. - 12:00 p.m.
YUL
-
STT
28h 00m
1 stop
United Airlines Logo
1:02 p.m. - 7:38 p.m.
STT
-
YUL
7h 36m
1 stop
C$ 1,075United Airlines
Tue, 8 Dec - Fri, 11 Dec
Multiple Airlines Logo
6:10 a.m. - 7:20 p.m.
YUL
-
STT
13h 10m
2 stops
Multiple Airlines Logo
8:39 a.m. - 10:06 p.m.
STT
-
YUL
13h 27m
2 stops
C$ 1,122Multiple Airlines
Sun, 6 Sep - Sun, 13 Sep
Air Canada Logo
11:10 a.m. - 12:00 p.m.
YUL
-
STT
23h 50m
2 stops
Air Canada Logo
2:15 p.m. - 11:57 a.m.
STT
-
YUL
22h 42m
1 stop
C$ 1,142Air Canada
Tue, 8 Dec - Fri, 11 Dec
Air Canada Logo
1:15 p.m. - 12:00 p.m.
YUL
-
STT
21h 45m
1 stop
Air Canada Logo
2:15 p.m. - 11:23 a.m.
STT
-
YUL
22h 08m
2 stops
C$ 1,144Air Canada
Tue, 8 Dec - Fri, 11 Dec

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Air Canada flights from Region of Ontario to Saint Thomas Island

Our best Air Canada deals on Region of Ontario to Saint Thomas Island flight tickets
Air Canada
8 Dec
YUL11:10 a.m.Montreal Pierre Elliott Trudeau Intl
23h 50m
2 stops
STT12:00 p.m.Saint Thomas Island Cyril E King
11 Dec
STT2:15 p.m.Saint Thomas Island Cyril E King
22h 42m
1 stop
YUL11:57 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,142
Air Canada
8 Dec
YUL1:15 p.m.Montreal Pierre Elliott Trudeau Intl
21h 45m
1 stop
STT12:00 p.m.Saint Thomas Island Cyril E King
11 Dec
STT2:15 p.m.Saint Thomas Island Cyril E King
22h 08m
2 stops
YUL11:23 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,144
Air Canada
8 Dec
YUL11:10 a.m.Montreal Pierre Elliott Trudeau Intl
23h 50m
2 stops
STT12:00 p.m.Saint Thomas Island Cyril E King
11 Dec
STT2:15 p.m.Saint Thomas Island Cyril E King
22h 52m
1 stop
YUL12:07 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,145

United Airlines flights from Region of Ontario to Saint Thomas Island

Our best United Airlines deals on Region of Ontario to Saint Thomas Island flight tickets
United Airlines
16 Jul
YYZ6:10 a.m.Toronto Pearson Intl
9h 33m
1 stop
STT3:43 p.m.Saint Thomas Island Cyril E King
22 Jul
STT4:45 p.m.Saint Thomas Island Cyril E King
7h 09m
1 stop
YYZ11:54 p.m.Toronto Pearson Intl
C$ 847
United Airlines
18 Jul
YYZ7:00 a.m.Toronto Pearson Intl
7h 54m
1 stop
STT2:54 p.m.Saint Thomas Island Cyril E King
25 Jul
STT6:05 p.m.Saint Thomas Island Cyril E King
17h 38m
1 stop
YYZ11:43 a.m.Toronto Pearson Intl
C$ 1,054
United Airlines
8 Dec
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
28h 00m
1 stop
STT12:00 p.m.Saint Thomas Island Cyril E King
11 Dec
STT1:02 p.m.Saint Thomas Island Cyril E King
7h 36m
1 stop
YUL7:38 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,075

momondo Fare Finder

 
Customize your flight search to find flights from Region of 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, momondo users made 96,600 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

Wed 21/10

5:15 p.m.-12:40 p.m.

2 stops19h 25m

Saint Thomas Island Cyril E King

Mon 26/10

5:40 p.m.-1:15 p.m.

2 stops19h 35m

C$ 787

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 18/9

6:04 p.m.-12:51 p.m.

2 stops18h 47m

Saint Thomas Island Cyril E King

Fri 25/9

1:41 p.m.-10:59 a.m.

2 stops21h 18m

C$ 841
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

4:45 p.m.-11:54 p.m.

1 stop7h 09m

C$ 847

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

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

Tue 8/12

11:10 a.m.-12:00 p.m.

2 stops23h 50m

Saint Thomas Island Cyril E King

Fri 11/12

2:15 p.m.-11:57 a.m.

1 stop22h 42m

C$ 1,142

MontrealSaint Thomas Island

YUL - STT

YULSTT

Montreal Pierre Elliott Trudeau Intl

Tue 8/12

1:15 p.m.-12:00 p.m.

1 stop21h 45m

Saint Thomas Island Cyril E King

Fri 11/12

2:15 p.m.-11:23 a.m.

2 stops22h 08m

C$ 1,144

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Region of Ontario to Saint Thomas Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Saint Thomas Island?

The cheapest month to fly to Saint Thomas Island from Region of Ontario is in October. Flight prices, which tend to average around C$ 0, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Saint Thomas Island from Region of Ontario during September instead. Flights to Saint Thomas Island in September, while not as cheap as those in October, still average around C$ 0.

Cheap Region of Ontario to Saint Thomas Island flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Saint Thomas Island

Fastest flight time

6h 50m

Direct flights

None
The fastest flight from Region of Ontario to Saint Thomas Island takes 6h 50m
There are no direct flights from Region of Ontario to Saint Thomas Island. There are no popular flight routes from Region of Ontario to Saint Thomas Island.
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Frequently asked questions about flying from Ontario to Saint Thomas Island

  • When did momondo last update prices for flights from Ontario to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Ontario to Saint Thomas Island Cyril E King Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Ontario to Saint Thomas Island Cyril E King Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents you'll need for your trip to Saint Thomas Island Cyril E King Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Region of Ontario to Saint Thomas Island

Compare and see reviews for airlines that fly from Region of Ontario to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom C$ 608Free CancellationRating
7.8
8,432 reviews
Search Delta flights
United AirlinesPriceFrom C$ 615Free CancellationRating
7.4
9,881 reviews
Search United Airlines flights
American AirlinesPriceFrom C$ 651Free CancellationRating
7.1
11,751 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Saint Thomas Island?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint Thomas Island from Ontario.

Can I find flights from Ontario to Saint Thomas Island with flexible booking policies on momondo?

All flight searches from Ontario to Saint Thomas Island on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Saint Thomas Island?

momondo provides multiple filters to help you find the best flight to Saint Thomas Island from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Saint Thomas Island right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Saint Thomas Island flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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