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>

$298 CHEAP FLIGHTS from Idaho to London

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

...and more

Travelers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$572

Overall average: $805

Virgin Atlantic

Tue 2/17Thu 2/26

BOI - LHR • 1 stop

Cheapest one-way

$298

Multiple Airlines

Sat 2/28

GEG - 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!

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

7:00 am - 4:50 pm

BOI

LHR

26h 50m

1 stop

12:20 pm - 9:56 pm

LHR

BOI

16h 36m

1 stop

$572Virgin Atlantic

Tue, Feb 17 - Tue, Feb 24

7:00 am - 10:00 am

BOI

LHR

20h 00m

1 stop

8:50 pm - 10:22 pm

LHR

BOI

32h 32m

2 stops

$578Iberia

Tue, Feb 24 - Tue, Mar 10

6:00 am - 11:40 am

GEG

LHR

21h 40m

1 stop

8:50 pm - 9:12 pm

LHR

GEG

31h 22m

2 stops

$578Iberia

Tue, Feb 17 - Thu, Feb 26

2:40 pm - 9:40 am

BOI

LHR

12h 00m

1 stop

11:10 am - 11:48 pm

LHR

BOI

19h 38m

2 stops

$588United Airlines

Tue, Feb 17 - Tue, Feb 24

10:25 am - 9:40 am

BOI

LHR

16h 15m

1 stop

11:10 am - 1:38 pm

LHR

BOI

33h 28m

2 stops

$593United Airlines

Wed, Mar 4 - Mon, Mar 9

6:00 am - 9:00 am

GEG

LGW

19h 00m

2 stops

12:30 pm - 11:44 am

LGW

GEG

30h 14m

2 stops

$597American Airlines

Wed, Feb 11 - Wed, Feb 18

7:20 am - 6:50 am

BOI

LHR

16h 30m

1 stop

8:20 am - 10:22 pm

LHR

BOI

21h 02m

1 stop

$598Finnair

Tue, Feb 17 - Thu, Feb 26

10:41 am - 10:30 am

BOI

LHR

16h 49m

1 stop

5:20 pm - 10:45 pm

LHR

BOI

36h 25m

1 stop

$600KLM

Tue, Feb 3 - Mon, Feb 9

12:58 pm - 10:00 am

JAC

LHR

14h 02m

1 stop

8:25 pm - 4:24 pm

LHR

JAC

26h 59m

2 stops

$603KLM

Tue, Apr 7 - Tue, Apr 14

7:30 am - 10:50 am

IDA

LHR

20h 20m

1 stop

10:05 am - 11:39 pm

LHR

IDA

20h 34m

1 stop

$624American Airlines

Useful Info

Low season	January
High season	April
Cheapest flight	$298

Best time to beat the crowds with an average 10% drop in price.

Most popular time to fly and prices are also 16% lower on average.

Flight from Spokane 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

Hayes

Wembley

Richmond

Luton

Ilford

Crawley

Watford

Guildford

Eastbourne

Kingston upon Thames

Colchester

St. Albans

Ipswich

Twickenham

Bedford

Barnet

Harrow

Hastings

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

$298 Find Cheap Flights from Idaho to London

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

Everything you should know

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

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