Cheap flights from St. Louis to London from $550

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1 stop
Sun, May 18
St. Louis STLLondon LHR

$550
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1 stop
Tue, May 20
St. Louis STLLondon LHR

$555
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1 stop
Tue, May 20
St. Louis STLLondon LHR

$555
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1 stop
Tue, May 20
St. Louis STLLondon LHR

$555
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1 stop
Tue, May 20
St. Louis STLLondon LHR

$555
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1 stop
Tue, May 20
St. Louis STLLondon LHR

$555
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Prices updated:

1 stop
Mon, May 19 – Thu, May 22
St. Louis STLLondon LHR

$942
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1 stop
Mon, May 19 – Thu, May 22
St. Louis STLLondon LHR

$942
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1 stop
Mon, May 19 – Thu, May 22
St. Louis STLLondon LHR

$942
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1 stop
Sun, May 18 – Thu, May 22
St. Louis STLLondon LHR

$953
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1 stop
Sun, May 18 – Thu, May 22
St. Louis STLLondon LHR

$953
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1 stop
Mon, May 19 – Sat, May 24
St. Louis STLLondon LHR

$961
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Prices updated:

How much do flights to London cost?

Key info about flying to London

Depart from
St. Louis Lambert International
Arrive to
Heathrow
Average flights per week
216
Flight distance
Worth visiting
Roman Baths, Bath - Avebury - St. David's Cathedral, Cardiff - Tintern Abbey, United Kingdom - St Fagans: National History Museum - Portsea Island - Natural History Museum - Tower of London - British Museum - Canterbury Cathedral - Stonehenge - St. Paul's Cathedral - Tate Modern - Isle of Wight

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

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUANo
Virgin Atlantic AirwaysVIRVSYes
Frontier AirlinesFFTF9No
IcelandairICEFINo
Southern Airways ExpressFDY9XYes

Weather in London

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C3°C
March11°C4°C
April14°C5°C
May17°C8°C
June20°C11°C
July22°C14°C
August22°C14°C
September19°C12°C
October15°C9°C
November10°C6°C
December8°C3°C
Hottest Month
22°C
July
Coldest month
2°C
January
Sunny days
278
days per year
Snow days
3
days per year

14 day forecast

Saturday
26 Apr
16°C9°C
3 May
18°C9°C
Sunday
27 Apr
86%
20°C8°C
4 May
19°C8°C
Monday
28 Apr
22°C11°C
5 May
18°C9°C
Tuesday
29 Apr
21°C10°C
6 May
16°C8°C
Wednesday
30 Apr
23°C10°C
7 May
16°C6°C
Thursday
1 May
26°C12°C
8 May
18°C7°C
Friday
2 May
22°C12°C
9 May
82%
12°C9°C
Book your trip to arrive at Heathrow, Gatwick, London Stansted, Luton, or London City. The most popular airlines for this route are United Airlines, Virgin Atlantic Airways, Frontier Airlines, Icelandair, and Southern Airways Express. St. Louis and London have 216 direct flights per week. When you arrive at London, consider visiting Roman Baths, Bath, Avebury, St. David's Cathedral, Cardiff, Tintern Abbey, United Kingdom, St Fagans: National History Museum, Portsea Island, Natural History Museum, Tower of London, British Museum, Canterbury Cathedral, Stonehenge, St. Paul's Cathedral, Tate Modern, and Isle of Wight.

Frequently asked questions

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What time do nonstop (direct) flights between St. Louis and London depart?
What time do nonstop (direct) flights between St. Louis and London arrive?
What time do flights between St. Louis and London depart?
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