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Cheap flights from Missouri to London, ON from C$ 1,377

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YXU
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Missouri to London

Keep the following information in mind while searching for Missouri to London flight deals. Data was last updated 30 October 2025.

Round-trip from

C$ 1,184
United Airlines
  • United Airlines
  • 3/3-4/3
  • 4 total stops
  • 25h 15m total
  • Missouri to London
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Find flight deals from Missouri to London

Enter your travel dates to find the best prices.

Cheapest flights from Missouri to London
Explore the most affordable flight options available from Missouri to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2025.

Sat 13/124:05 p.m.STL - YXU
1 stop4h 16mAir Canada
Sat 20/129:25 a.m.YXU - STL
1 stop7h 04mAir Canada
Deal found 29/10C$ 1,377
Sat 13/126:30 a.m.STL - YXU
2 stops13h 51mUnited Airlines
Sat 20/129:25 a.m.YXU - STL
2 stops14h 18mUnited Airlines
Deal found 29/10C$ 1,441

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to London 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 30 October 2025.
Use the filters below to find and compare flights from Missouri to London that are best for you.

Fly from

Missouri

Fly to

London

Route

Depart

Return

Price

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Sat 13/12

4:05 p.m.-9:21 p.m.

1 stop4h 16m

London

Sat 20/12

9:25 a.m.-3:29 p.m.

1 stop7h 04m

C$ 1,377

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Sat 13/12

6:30 a.m.-9:21 p.m.

2 stops13h 51m

London

Sat 20/12

9:25 a.m.-10:43 p.m.

2 stops14h 18m

C$ 1,441

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Best time to book a flight from Missouri to London

Have a flexible travel schedule? Discover the best time to fly to London from Missouri 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 Missouri to London

What is the cheapest month to book a flight from Missouri to London, Ontario?

Currently, June is the cheapest month in which you can book a flight from Missouri to London, Ontario (average of C$ 250). Flying from Missouri to London, Ontario in February is currently the most expensive (average of C$ 508). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Missouri to London. 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 London from Missouri?

    Most people fly into London (YXU) if they book a flight to London from Missouri. London is conveniently located just 8.6 km from London’s city centre.

  • How long is the flight from Missouri to London, Ontario?

    A quick flight from Missouri to London, Ontario can take about 4h 16m. Air Canada provides one of the quickest options available for as low as C$ 1,377. The distance between Missouri and London, Ontario is about 908 km. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Missouri to London that include hotel bookings?

    Yes. In addition to deals on Missouri to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to London.

  • Can I find deals for business class flights from Missouri to London?

    Yes. Cheapflights offers flight deals from Missouri to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to London, Ontario?

    Currently, June is the cheapest month in which you can book a flight from Missouri to London, Ontario (average of C$ 250). Flying from Missouri to London, Ontario in February is currently the most expensive (average of C$ 508). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Port Stanley
Grand Bend

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How does Cheapflights help users find flights from Missouri to London?

Deals for Missouri to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Missouri to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Missouri to London.

Can Cheapflights find flights from Missouri to London with no change fees?

Certainly. Search results for flights to London from Missouri shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Missouri to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Missouri today and book when prices fit your budget.

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