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

Prices for flights from Lambert-St Louis Airport to London Airport are updated daily.

How old do you have to be to fly from Lambert-St Louis Airport to London Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to London Airport.

What documentation or ID do you need to fly to London Airport?

The necessary travel and health documents for your London Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 596 Cheap Flights from St. Louis to London, Ontario in 2026

Find the cheapest flights from St. Louis to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:40 p.m. - 9:40 p.m.

STL

YXU

6h 00m

1 stop

10:05 a.m. - 2:00 p.m.

YXU

STL

4h 55m

1 stop

C$ 1,036Air Canada

Tue, 8 Sep - Wed, 9 Sep

12:10 p.m. - 9:40 p.m.

STL

YXU

8h 30m

2 stops

10:05 a.m. - 2:00 p.m.

YXU

STL

4h 55m

1 stop

C$ 1,048Air Canada

Tue, 8 Sep - Wed, 9 Sep

2:40 p.m. - 9:40 p.m.

STL

YXU

6h 00m

1 stop

10:05 a.m. - 6:41 p.m.

YXU

STL

9h 36m

2 stops

C$ 1,049Air Canada

Tue, 8 Sep - Wed, 9 Sep

12:10 p.m. - 9:40 p.m.

STL

YXU

8h 30m

2 stops

10:05 a.m. - 6:41 p.m.

YXU

STL

9h 36m

2 stops

C$ 1,060Air Canada

Tue, 8 Sep - Wed, 9 Sep

2:40 p.m. - 8:32 p.m.

STL

YXU

4h 52m

1 stop

10:05 a.m. - 2:02 p.m.

YXU

STL

4h 57m

1 stop

C$ 1,087Air Canada

Wed, 15 Jul - Sat, 18 Jul

12:10 p.m. - 9:17 a.m.

STL

YXU

20h 07m

2 stops

10:05 a.m. - 2:02 p.m.

YXU

STL

4h 57m

1 stop

C$ 1,175Air Canada

Wed, 15 Jul - Sat, 18 Jul

2:40 p.m. - 8:32 p.m.

STL

YXU

4h 52m

1 stop

10:05 a.m. - 2:02 p.m.

YXU

STL

4h 57m

1 stop

C$ 1,193Air Canada

Fri, 10 Jul - Tue, 14 Jul

8:55 a.m. - 2:52 p.m.

STL

YXU

4h 57m

1 stop

10:05 a.m. - 6:42 p.m.

YXU

STL

9h 37m

2 stops

C$ 1,204Air Canada

Fri, 10 Jul - Tue, 14 Jul

12:10 p.m. - 9:40 p.m.

STL

YXU

8h 30m

2 stops

10:05 a.m. - 6:41 p.m.

YXU

STL

9h 36m

2 stops

C$ 1,217Air Canada

Tue, 8 Sep - Wed, 9 Sep

6:00 a.m. - 2:52 p.m.

STL

YXU

7h 52m

2 stops

10:05 a.m. - 6:42 p.m.

YXU

STL

9h 37m

2 stops

C$ 1,278Air Canada

Fri, 10 Jul - Tue, 14 Jul

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Air Canada flights from St. Louis to London, Ontario

Our best Air Canada deals on St. Louis to London, Ontario flight tickets

Air Canada

8 Sep

STL2:40 p.m.Lambert-St Louis

6h 00m

1 stop

YXU9:40 p.m.London

9 Sep

YXU10:05 a.m.London

4h 55m

1 stop

STL2:00 p.m.Lambert-St Louis

C$ 1,036

Air Canada

8 Sep

STL12:10 p.m.Lambert-St Louis

8h 30m

2 stops

YXU9:40 p.m.London

9 Sep

YXU10:05 a.m.London

4h 55m

1 stop

STL2:00 p.m.Lambert-St Louis

C$ 1,048

Air Canada

8 Sep

STL2:40 p.m.Lambert-St Louis

6h 00m

1 stop

YXU9:40 p.m.London

9 Sep

YXU10:05 a.m.London

9h 36m

2 stops

STL6:41 p.m.Lambert-St Louis

C$ 1,049

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Tue 8/9

2:40 p.m.-9:40 p.m.

1 stop6h 00m

London

Wed 9/9

10:05 a.m.-2:00 p.m.

1 stop4h 55m

C$ 1,036

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Tue 8/9

12:10 p.m.-9:40 p.m.

2 stops8h 30m

London

Wed 9/9

10:05 a.m.-2:00 p.m.

1 stop4h 55m

C$ 1,048

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Tue 8/9

2:40 p.m.-9:40 p.m.

1 stop6h 00m

London

Wed 9/9

10:05 a.m.-6:41 p.m.

2 stops9h 36m

C$ 1,049

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Tue 8/9

12:10 p.m.-9:40 p.m.

2 stops8h 30m

London

Wed 9/9

10:05 a.m.-6:41 p.m.

2 stops9h 36m

C$ 1,060

Quickest round-trip

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Wed 15/7

2:40 p.m.-8:32 p.m.

1 stop4h 52m

London

Sat 18/7

10:05 a.m.-2:02 p.m.

1 stop4h 57m

C$ 1,087

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Wed 15/7

12:10 p.m.-9:17 a.m.

2 stops20h 07m

London

Sat 18/7

10:05 a.m.-2:02 p.m.

1 stop4h 57m

C$ 1,175

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Fri 10/7

2:40 p.m.-8:32 p.m.

1 stop4h 52m

London

Tue 14/7

10:05 a.m.-2:02 p.m.

1 stop4h 57m

C$ 1,193

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Fri 10/7

8:55 a.m.-2:52 p.m.

1 stop4h 57m

London

Tue 14/7

10:05 a.m.-6:42 p.m.

2 stops9h 37m

C$ 1,204

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Tue 8/9

12:10 p.m.-9:40 p.m.

2 stops8h 30m

London

Wed 9/9

10:05 a.m.-6:41 p.m.

2 stops9h 36m

C$ 1,217

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Fri 10/7

6:00 a.m.-2:52 p.m.

2 stops7h 52m

London

Tue 14/7

10:05 a.m.-6:42 p.m.

2 stops9h 37m

C$ 1,278

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to London, Ontario

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 from Lambert-St Louis to London?

United Airlines is the most popular carrier operating from Lambert-St Louis to London

When to book flights from St. Louis to London, Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to London, Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to London, Ontario (STL to YXU) flight deals and tips

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

Fastest flight time	7h 52m
Direct flights	None

The fastest flight from St. Louis to London, Ontario takes 7h 52m

There are no direct flights from St. Louis to London, Ontario. There are no popular flight routes from St. Louis to London, Ontario.

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Frequently asked questions about flying from St. Louis to London, Ontario

How far is Lambert-St Louis to London by plane?
London is 895.2 km away from Lambert-St Louis. In terms of flight time, this usually takes a little over 7h 52m.
When did momondo last update prices for flights from Lambert-St Louis Airport to London Airport?
Prices for flights from Lambert-St Louis Airport to London Airport are updated daily.
How old do you have to be to fly from Lambert-St Louis Airport to London Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to London Airport.
What documentation or ID do you need to fly to London Airport?
The necessary travel and health documents for your London Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Grand Bend

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from St. Louis and alert you when they change.