$272 Cheap flight deals from St. Louis (STL) to London (YXU)

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Airfares from $272 One Way, $595 Round Trip from St. Louis to London

Prices starting at $595 for return flights and $272 for one-way flights to London were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 21 - Sat, Jul 25
STL
St. Louis
YKF
Kitchener
$595 Roundtrip, found 1 day ago
$595
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Jul 21 from St. Louis to Kitchener, returning Sat, Jul 25, priced at $595 found 1 day ago
Tue, Jul 21 - Sat, Jul 25
STL
St. Louis
YHM
Hamilton
$595 Roundtrip, found 1 day ago
$595
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Jul 21 from St. Louis to Hamilton, returning Sat, Jul 25, priced at $595 found 1 day ago
Mon, Aug 3 - Thu, Aug 6
STL
St. Louis
YKF
Kitchener
$650 Roundtrip, found 20 hours ago
$650
Roundtrip
found 20 hours ago
Select Air Canada flight, departing Mon, Aug 3 from St. Louis to Kitchener, returning Thu, Aug 6, priced at $650 found 20 hours ago
Mon, Jul 20 - Fri, Jul 24
STL
St. Louis
YKF
Kitchener
$661 Roundtrip, found 7 hours ago
$661
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Mon, Jul 20 from St. Louis to Kitchener, returning Fri, Jul 24, priced at $661 found 7 hours ago
Wed, Jul 29 - Tue, Aug 4
STL
St. Louis
YKF
Kitchener
$671 Roundtrip, found 5 days ago
$671
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Jul 29 from St. Louis to Kitchener, returning Tue, Aug 4, priced at $671 found 5 days ago

More About Flying To London from St. Louis

Route Information for Flights from St. Louis to London

Origin Airport IATA Code
STL
Destination Airport IATA Code
YXU
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

St. Louis to London

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Frequently asked questions

What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.