Cheap flights from St. Louis (STL) to London (YXU)

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How to find the cheapest flight from
St. Louis (STL) to London (YXU)

All the information you need to plan the best STL to YXU flight in 2022: compare St. Louis to London flight prices with the expected peak season, weather and rainfall in London.
What is the cheapest day to fly round-trip from St. Louis to London, Ontario?

Wednesday is generally a great day to depart. Flying on this day could help you save up to 2%.

When is the cheapest time to fly from St. Louis to London, Ontario (STL - YXU)?

When flying from St. Louis to London, Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">London</span> flights.

COVID Restrictions

View COVID Travel Restrictions for London, Canada

Do I need a COVID test to fly to London from St. Louis?

Information is based on travel restrictions from Lambert-St Louis to London

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter London.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to London.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering London.

Do I need a test to fly back to St. Louis from London?

Returning to Lambert-St Louis from London

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Lambert-St Louis.

Quarantine requirements
Visitors from London are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for London, Canada

Alternative routes for St. Louis to London

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for London

Things to know before you go - useful duration and weather info for your trip from St. Louis to London.
Today's exchange rate
$1 = C$ 1.30
Average temperature for May in London
66.2 °F
Avg rainfall for May in London
3.0 ″

Airports servicing St. Louis

Airports servicing London

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