How does KAYAK find such low prices on flights from Missouri to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Missouri to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Missouri with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

C$ 527 CHEAP FLIGHTS from Missouri to London

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Flight Deals

Cheap Flights from Missouri to London

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Missouri to London

Sat, 16 Jan - Tue, 19 Jan

4:05 p.m. - 9:47 p.m.STL Lambert-St Louis-YXU London

4h 42m1 stop Toronto Pearson Intl

9:15 a.m. - 3:26 p.m.YXU London-STL Lambert-St Louis

7h 11m1 stop Toronto Pearson Intl

C$ 1,146Air Canada

Thu, 22 Oct - Mon, 26 Oct

2:40 p.m. - 7:40 p.m.STL Lambert-St Louis-YXU London

4h 00m1 stop Toronto Pearson Intl

3:25 p.m. - 9:40 p.m.YXU London-STL Lambert-St Louis

7h 15m2 stops Toronto Pearson Intl Chicago O'Hare Intl

C$ 1,312Air Canada

Thu, 22 Oct - Mon, 26 Oct

6:00 a.m. - 2:50 p.m.STL Lambert-St Louis-YXU London

7h 50m2 stops Chicago O'Hare Intl Toronto Pearson Intl

3:25 p.m. - 11:24 p.m.YXU London-STL Lambert-St Louis

8h 59m2 stops Toronto Pearson Intl Chicago O'Hare Intl

C$ 1,325Air Canada

Thu, 22 Oct - Mon, 26 Oct

8:55 a.m. - 2:50 p.m.STL Lambert-St Louis-YXU London

4h 55m1 stop Toronto Pearson Intl

3:25 p.m. - 8:53 a.m.YXU London-STL Lambert-St Louis

18h 28m2 stops Toronto Pearson Intl Newark

C$ 1,341United Airlines

Thu, 22 Oct - Thu, 29 Oct

6:47 a.m. - 5:20 a.m.STL Lambert-St Louis-YXU London

21h 33m2 stops Detroit Metropolitan Wayne County Calgary

7:40 a.m. - 9:09 a.m.YXU London-STL Lambert-St Louis

26h 29m2 stops Calgary Atlanta Hartsfield-Jackson

C$ 1,349WestJet

Thu, 22 Oct - Mon, 26 Oct

8:00 a.m. - 9:40 p.m.STL Lambert-St Louis-YXU London

12h 40m2 stops Chicago O'Hare Intl Toronto Pearson Intl

3:25 p.m. - 8:53 a.m.YXU London-STL Lambert-St Louis

18h 28m2 stops Toronto Pearson Intl Newark

C$ 1,354United Airlines

Thu, 22 Oct - Thu, 29 Oct

8:55 a.m. - 2:50 p.m.STL Lambert-St Louis-YXU London

4h 55m1 stop Toronto Pearson Intl

9:15 a.m. - 3:23 p.m.YXU London-STL Lambert-St Louis

7h 08m1 stop Toronto Pearson Intl

C$ 1,360Air Canada

Thu, 22 Oct - Mon, 26 Oct

2:40 p.m. - 7:40 p.m.STL Lambert-St Louis-YXU London

4h 00m1 stop Toronto Pearson Intl

3:25 p.m. - 9:40 p.m.YXU London-STL Lambert-St Louis

7h 15m2 stops Toronto Pearson Intl Chicago O'Hare Intl

C$ 1,381Air Canada

Thu, 22 Oct - Mon, 26 Oct

8:55 a.m. - 2:50 p.m.STL Lambert-St Louis-YXU London

4h 55m1 stop Toronto Pearson Intl

9:15 a.m. - 3:23 p.m.YXU London-STL Lambert-St Louis

7h 08m1 stop Toronto Pearson Intl

C$ 1,392Air Canada

Thu, 22 Oct - Mon, 26 Oct

10:27 a.m. - 9:40 p.m.STL Lambert-St Louis-YXU London

10h 13m2 stops Chicago O'Hare Intl Toronto Pearson Intl

3:25 p.m. - 9:40 p.m.YXU London-STL Lambert-St Louis

7h 15m2 stops Toronto Pearson Intl Chicago O'Hare Intl

C$ 1,393United Airlines

Useful Info

How does KAYAK find such low prices on flights from Missouri to London?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Missouri to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Missouri with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to London?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.