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Cheap flights from Ontario to St. Louis from C$ 223

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 St. Louis departing on 19/11. 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

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Find the cheapest flights from Ontario to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to St. Louis.

Cheap last-minute flights

Planning a quick getaway from Ontario to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ontario to St. Louis

Find recent round-trip train or bus tickets from Ontario to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
7:05 a.m. - 3:21 p.m.YYZ-STL
9h 16m1 stop
12:00 p.m. - 11:50 p.m.STL-YYZ
34h 50m3 stops
C$ 651
Find Deal
Thu, 5 Dec - Sun, 8 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 652Air Canada
Find Deal
Wed, 11 Dec - Wed, 18 Dec
6:15 a.m. - 3:30 p.m.YYZ-STL
10h 15m1 stop
11:00 a.m. - 9:20 p.m.STL-YYZ
9h 20m1 stop
C$ 663American Airlines
Find Deal
Thu, 5 Dec - Mon, 9 Dec
1:14 p.m. - 10:13 p.m.YYZ-STL
9h 59m1 stop
11:00 a.m. - 9:20 p.m.STL-YYZ
9h 20m1 stop
C$ 665American Airlines
Find Deal
Thu, 5 Dec - Mon, 9 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 667United Airlines
Find Deal
Thu, 5 Dec - Sun, 8 Dec
6:15 a.m. - 12:04 p.m.YYZ-STL
6h 49m1 stop
6:30 a.m. - 11:27 a.m.STL-YYZ
3h 57m1 stop
C$ 674Delta
Find Deal
Thu, 5 Dec - Sun, 8 Dec
6:15 p.m. - 11:41 p.m.YYZ-STL
6h 26m1 stop
6:30 a.m. - 11:27 a.m.STL-YYZ
3h 57m1 stop
C$ 676Delta
Find Deal
Thu, 5 Dec - Sun, 8 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 677United Airlines
Find Deal
Thu, 5 Dec - Mon, 9 Dec
6:30 p.m. - 6:21 p.m.YYZ-STL
24h 51m2 stops
5:17 p.m. - 11:07 a.m.STL-YYZ
16h 50m1 stop
C$ 819WestJet
Find Deal
Sun, 15 Dec - Sun, 22 Dec
6:45 a.m. - 12:05 p.m.YUL-STL
30h 20m2 stops
11:46 a.m. - 12:30 p.m.STL-YUL
23h 44m2 stops
C$ 864WestJet
Find Deal
Mon, 16 Dec - Wed, 25 Dec
5:35 p.m. - 7:41 a.m.YYZ-STL
15h 06m1 stop
C$ 223
Find Deal
Tue, 19 Nov
8:00 p.m. - 7:41 a.m.YYZ-STL
12h 41m1 stop
C$ 224
Find Deal
Thu, 21 Nov
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
C$ 362Air Canada
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Thu, 12 Dec
6:30 a.m. - 5:36 p.m.YYZ-STL
12h 06m2 stops
C$ 367United Airlines
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Tue, 21 Jan
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
C$ 373Air Canada
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Sun, 15 Dec
6:15 a.m. - 9:36 a.m.YYZ-STL
4h 21m1 stop
C$ 404American Airlines
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Fri, 20 Dec
7:15 a.m. - 3:34 p.m.YYZ-STL
9h 19m2 stops
C$ 428United Airlines
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Tue, 3 Dec
6:15 a.m. - 9:36 a.m.YYZ-STL
4h 21m1 stop
C$ 432American Airlines
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Fri, 20 Dec
6:45 a.m. - 9:55 p.m.YUL-STL
40h 10m2 stops
C$ 534WestJet
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Sun, 1 Dec
6:30 a.m. - 10:06 p.m.YYZ-STL
16h 36m1 stop
C$ 565WestJet
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Sun, 22 Dec
11:15 a.m. - 4:34 p.m.YYZ-STL
30h 19m1 stop
7:41 p.m. - 9:47 p.m.STL-YYZ
25h 06m2 stops
C$ 680
Find Deal
Mon, 18 Nov - Mon, 25 Nov
7:05 a.m. - 4:34 p.m.YYZ-STL
10h 29m1 stop
5:29 p.m. - 9:32 p.m.STL-YYZ
27h 03m1 stop
C$ 744
Find Deal
Sun, 17 Nov - Tue, 19 Nov
6:30 a.m. - 11:58 a.m.YYZ-STL
6h 28m1 stop
6:00 a.m. - 4:11 p.m.STL-YYZ
9h 11m1 stop
C$ 1,030Delta
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Mon, 18 Nov - Mon, 25 Nov
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
6:30 a.m. - 1:42 p.m.STL-YYZ
6h 12m1 stop
C$ 1,266Air Canada
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Fri, 15 Nov - Sat, 30 Nov
9:00 a.m. - 2:25 p.m.YYZ-STL
6h 25m1 stop
8:05 a.m. - 1:42 p.m.STL-YYZ
4h 37m1 stop
C$ 1,274Air Canada
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Fri, 15 Nov - Sat, 30 Nov
10:00 a.m. - 9:55 p.m.YYZ-STL
12h 55m2 stops
6:00 a.m. - 11:11 p.m.STL-YYZ
16h 11m2 stops
C$ 1,329WestJet
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Fri, 15 Nov - Sat, 30 Nov
6:30 a.m. - 9:55 p.m.YYZ-STL
16h 25m2 stops
10:21 a.m. - 11:34 p.m.STL-YYZ
12h 13m2 stops
C$ 1,506WestJet
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Mon, 18 Nov - Mon, 25 Nov
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 1,590United Airlines
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Mon, 18 Nov - Mon, 25 Nov
6:00 a.m. - 2:40 p.m.YYZ-STL
9h 40m2 stops
6:30 a.m. - 5:55 p.m.STL-YYZ
10h 25m2 stops
C$ 1,870Delta
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Sat, 16 Nov - Tue, 19 Nov
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 1,923United Airlines
Find Deal
Sat, 16 Nov - Tue, 19 Nov
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 652Air Canada
Find Deal
Wed, 11 Dec - Wed, 18 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 653Air Canada
Find Deal
Wed, 11 Dec - Wed, 18 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 656Air Canada
Find Deal
Thu, 5 Dec - Mon, 9 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 667United Airlines
Find Deal
Thu, 5 Dec - Sun, 8 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 677United Airlines
Find Deal
Thu, 5 Dec - Mon, 9 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 707Air Canada
Find Deal
Wed, 11 Dec - Tue, 17 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 736Air Canada
Find Deal
Wed, 11 Dec - Wed, 18 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 750Air Canada
Find Deal
Wed, 27 Nov - Wed, 4 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 859United Airlines
Find Deal
Tue, 24 Dec - Sun, 29 Dec
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 880
Find Deal
Fri, 18 Apr - Sun, 20 Apr

Delta flights from Region of Ontario to St. Louis

Our best Delta deals on Region of Ontario to St. Louis flight tickets
Delta
5 Dec
YYZ6:15 a.m.Toronto Pearson Intl
6h 49m
1 stop
STL12:04 p.m.Lambert-St Louis
8 Dec
STL6:30 a.m.Lambert-St Louis
3h 57m
1 stop
YYZ11:27 a.m.Toronto Pearson Intl
Delta
5 Dec
YYZ6:15 p.m.Toronto Pearson Intl
6h 26m
1 stop
STL11:41 p.m.Lambert-St Louis
8 Dec
STL6:30 a.m.Lambert-St Louis
3h 57m
1 stop
YYZ11:27 a.m.Toronto Pearson Intl
Delta
16 Jan
YUL11:20 a.m.Montreal Pierre Elliott Trudeau Intl
10h 46m
1 stop
STL9:06 p.m.Lambert-St Louis
19 Jan
STL10:20 a.m.Lambert-St Louis
9h 46m
1 stop
YUL9:06 p.m.Montreal Pierre Elliott Trudeau Intl

WestJet flights from Region of Ontario to St. Louis

Our best WestJet deals on Region of Ontario to St. Louis flight tickets
WestJet
15 Dec
YYZ6:30 p.m.Toronto Pearson Intl
24h 51m
2 stops
STL6:21 p.m.Lambert-St Louis
22 Dec
STL5:17 p.m.Lambert-St Louis
16h 50m
1 stop
YYZ11:07 a.m.Toronto Pearson Intl
WestJet
16 Dec
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
30h 20m
2 stops
STL12:05 p.m.Lambert-St Louis
25 Dec
STL11:46 a.m.Lambert-St Louis
23h 44m
2 stops
YUL12:30 p.m.Montreal Pierre Elliott Trudeau Intl
WestJet
16 Dec
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
30h 20m
2 stops
STL12:05 p.m.Lambert-St Louis
26 Dec
STL6:04 a.m.Lambert-St Louis
16h 39m
1 stop
YUL11:43 p.m.Montreal Pierre Elliott Trudeau Intl

How to get the cheapest flight ticket from Region of Ontario to St. Louis

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 airline that flies to St. Louis from Region of Ontario?

United Airlines. United Airlines and Air Canada are the most popular carriers operating from Region of Ontario to St. Louis

What is the cheapest Region of Ontario to St. Louis flight route?

Toronto Pearson Intl - Lambert-St Louis. Fly from Toronto Pearson Intl to Lambert-St Louis for the best Region of Ontario - St. Louis flight prices

Can stopping save me money on Region of Ontario to St. Louis flights?

You could potentially save up to 40% on your flight if you consider stops on a Region of Ontario to St. Louis flight.

Cheap Region of Ontario to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to St. Louis

Best price found

C$ 223

Fastest flight time

2h 16m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Region of Ontario in the past 72 hours is C$ 223. The best round-trip flight deal from Region of Ontario to St. Louis found on momondo in the last 72 hours is C$ 650.
The fastest flight from Region of Ontario to St. Louis takes 2h 16m
Direct flights go from Region of Ontario to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • When did momondo last update prices for flights from Ontario to Lambert-St Louis Airport?

    Prices for flights from Ontario to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario to Lambert-St Louis Airport?

  • How old do you have to be to fly from Ontario to Lambert-St Louis 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 Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis 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 Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Region of Ontario to St. Louis?


Best airlines flying from Region of Ontario to St. Louis

Compare and see reviews for airlines that fly from Region of Ontario to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom C$ 485Free CancellationRating
7.4
9,194 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 510Free CancellationRating
7.0
8,198 reviews
Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to St. Louis?

It is quick and easy to find Ontario to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Can I find flights from Ontario to St. Louis with flexible booking policies on momondo?

Flights from Ontario to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to St. Louis?

Once you have performed a search for Ontario to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to St. Louis from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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