Cheap flights from London, United Kingdom to Sun Valley, ID

Flights starting at $435. Choose between Alaska Airlines, Aer Lingus, or JetBlue Airways to find the best price.

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Travelers usually depart from Gatwick, Heathrow, Luton, London Stansted, or London City when they travel from London to Sun Valley. The most popular airlines for this route are Alaska Airlines, Aer Lingus, JetBlue Airways, easyJet, and Iberia Airlines. London and Sun Valley have 105 direct flights per week.

Check-in for a flight from London to Sun Valley

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Aer LingusEINEINoOpens 48 days before flight
Closes 5 hours before flight
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight
easyJetEZYU2NoOpens 720 days before flight
Closes 2 hours before flight
Iberia AirlinesIBEIBYesOpens 24 days before flight
Closes 3 hours before flight

Weather in Sun Valley

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January-2°C-12°C
February-2°C-11°C
March1°C-8°C
April5°C-4°C
May11°C1°C
June18°C6°C
July25°C12°C
August24°C11°C
September19°C7°C
October10°C0°C
November2°C-7°C
December-3°C-13°C
Hottest Month
25°C
July
Coldest month
-13°C
December
Sunny days
244
days per year
Snow days
40
days per year

14 day forecast

Tuesday
19 Mar
5°C-4°C
26 Mar
18%
-2°C-4°C
Wednesday
20 Mar
6°C-3°C
27 Mar
74%
1°C-4°C
Thursday
21 Mar
88%
4°C-3°C
28 Mar
87%
1°C-5°C
Friday
22 Mar
4°C-4°C
29 Mar
79%
-4°C-9°C
Saturday
23 Mar
74%
3°C-6°C
30 Mar
70%
-2°C-9°C
Sunday
24 Mar
70%
-3°C-8°C
31 Mar
88%
0°C-7°C
Monday
25 Mar
81%
0°C-7°C
1 Apr
89%
3°C-5°C

Frequently asked questions

What are the most popular routes to and from London?
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Which airports are there in London?
What airports are near London?
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Which airlines fly between London and Sun Valley?
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