How does KAYAK find such low prices on flights from Idaho to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho to London. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Idaho is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Idaho to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Idaho with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$367 CHEAP FLIGHTS from Idaho to London

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Flight Deals

Cheap Flights from Idaho to London

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Idaho to London

Tue, Feb 17 - Thu, Feb 26

2:00 pm - 12:50 pmBOI-LHR

15h 50m1 stop

12:20 pm - 8:13 pmLHR-BOI

14h 53m1 stop

$571Virgin Atlantic

Find Deal

Tue, Feb 17 - Thu, Feb 26

1:10 pm - 10:00 amBOI-LHR

13h 50m1 stop

6:20 am - 4:26 pmLHR-BOI

17h 06m2 stops

$593Multiple Airlines

Find Deal

Wed, Nov 19 - Wed, Nov 26

5:35 am - 7:05 amBOI-LHR

18h 30m1 stop

8:40 am - 10:27 pmLHR-BOI

20h 47m2 stops

$594Delta

Find Deal

Wed, Nov 12 - Wed, Dec 3

2:45 pm - 4:50 pmGEG-LHR

18h 05m1 stop

6:30 am - 8:10 pmLHR-GEG

21h 40m2 stops

$594Delta

Find Deal

Tue, Feb 17 - Thu, Feb 26

1:43 pm - 11:40 amBOI-LHR

14h 57m1 stop

12:20 pm - 6:25 pmLHR-BOI

13h 05m1 stop

$600KLM

Find Deal

Wed, Nov 5 - Wed, Nov 19

12:51 pm - 11:40 amGEG-LHR

14h 49m1 stop

11:05 am - 8:03 pmLHR-GEG

16h 58m1 stop

$601KLM

Find Deal

Mon, Nov 24 - Wed, Dec 3

6:00 am - 10:00 amIDA-LHR

21h 00m1 stop

10:45 am - 6:26 pmLHR-IDA

14h 41m1 stop

$601Air France

Find Deal

Sun, Dec 7 - Sun, Dec 14

3:54 pm - 6:30 pmBOI-LHR

19h 36m2 stops

6:40 am - 10:05 pmLHR-BOI

22h 25m3 stops

$627Scandinavian Airlines

Find Deal

Sun, Dec 7 - Sun, Dec 14

3:54 pm - 6:30 pmBOI-LHR

19h 36m2 stops

6:40 am - 10:05 pmLHR-BOI

22h 25m3 stops

$629Scandinavian Airlines

Find Deal

Thu, Nov 27 - Thu, Dec 4

6:00 am - 6:50 amGEG-LHR

16h 50m2 stops

6:20 am - 3:40 pmLHR-GEG

17h 20m2 stops

$647Air France

Find Deal

Cheapest round-trip

$571

Overall average: $830

Virgin Atlantic

Tue 2/17Thu 2/26

BOI - LHR • 1 stop

Cheapest one-way

$367

Multiple Airlines

Sat 11/8

BOI - LHR • 3 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to London!

Useful Info

Low season	January
High season	July
Cheapest flight	$367

Best time to beat the crowds with an average 17% drop in price.

Most popular time to fly with an average 25% increase in price.

Flight from Boise to London Heathrow Airport

How does KAYAK find such low prices on flights from Idaho to London?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Idaho is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Idaho to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Idaho with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to London?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Hounslow

Slough

Wembley

Hayes

Richmond

Luton

Ilford

Crawley

Guildford

Watford

Kingston upon Thames

Eastbourne

Colchester

Ipswich

St. Albans

Harrow

Hastings

Worthing

Bedford

Maidenhead

Everything you need to know for your flight to London

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Idaho

First Class flights to London

Business Class flights to London

Prem Econ Class flights to London

Economy Class flights to London

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$269 Find Cheap Flights from Idaho to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

Cheap Flights from Idaho to London

Recent round-trip flight deals from Idaho to London

Recent one-way flight deals from Idaho to London

Recent last minute flight deals from Idaho to London

Everything you should know

Good to know

FAQs for booking flights from Idaho to London

How does KAYAK find such low prices on flights from Idaho to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Idaho to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Idaho with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near London?

Everything you need to know for your flight to London

Cabin class types available on flights to Idaho

Complete your trip to London with a hotel stay or car rental

Find direct flights for London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London

Find deals for your return flight