St. Louis, MO to London, United Kingdom flights

Flights starting at $342. Choose between Delta Air Lines, Spirit Airlines, or Frontier Airlines to find the best price.

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St. Louis STLAtlanta ATLOrlando MCOLondon LGW
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Travelers usually depart from St. Louis Lambert International, or St. Louis Union Station when they travel from St. Louis to London. Book your trip to arrive at Gatwick, Heathrow, London Stansted, Luton, or London City. The most popular airlines for this route are Delta Air Lines, Spirit Airlines, Frontier Airlines, Ryanair, and WestJet. St. Louis and London have 401 direct flights per week. When you arrive at London, consider visiting Natural History Museum, St. Paul's Cathedral, Tower of London, British Museum, Roman Baths, Bath, Stonehenge, Avebury, Tate Modern, Isle of Wight, Canterbury Cathedral, and Portsea Island.

Check-in for a flight from St. Louis to London

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
RyanairRYRFRNoOpens 24 days before flight
Closes 2 hours before flight
WestJetWJAWSNoOpens 24 days before flight
Closes 1 hours before flight

United Kingdom COVID-19 travel restrictions

Your trip summary

Departure

Travel restrictions
  • Travel is allowed
  • Proof of pre-departure COVID-19 test is not required
  • Quarantine is not required
Visa requirements
  • Visa is not required
Additional information
  • Masks are recommended in certain situations

Return

Travel restrictions
  • Travel is allowed
  • Proof of pre-departure COVID-19 test is not required
  • Quarantine is not required
Visa requirements
  • Visa is not required

Frequently asked questions

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