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.

$329 CHEAP FLIGHTS from Idaho to London (LHR)

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from Idaho to London

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, Mar 2 - Fri, Mar 5

5:22 pm - 8:30 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

32h 08m2 stops Denver Intl Toronto Pearson Intl

6:35 am - 11:59 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

24h 24m2 stops Munich Franz Josef Strauss San Francisco

$761United Airlines

Tue, Mar 2 - Fri, Mar 5

5:22 pm - 8:30 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

32h 08m2 stops Denver Intl Toronto Pearson Intl

6:35 am - 9:15 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

21h 40m2 stops Munich Franz Josef Strauss San Francisco

$762United Airlines

Tue, Mar 2 - Fri, Mar 5

4:05 pm - 11:15 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

36h 10m1 stop San Francisco

6:35 am - 7:16 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

19h 41m2 stops Munich Franz Josef Strauss San Francisco

$820United Airlines

Tue, Jan 12 - Tue, Jan 19

9:08 am - 12:20 pmIDA Idaho Falls Fanning Field-LHR London Heathrow

20h 12m1 stop Seattle/Tacoma Intl

2:45 pm - 10:53 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

15h 08m1 stop Seattle/Tacoma Intl

$879Alaska Airlines

Tue, Mar 2 - Fri, Mar 5

12:00 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

17h 20m1 stop Seattle/Tacoma Intl

2:45 pm - 12:11 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

16h 26m1 stop Seattle/Tacoma Intl

$879Alaska Airlines

Tue, Mar 2 - Fri, Mar 5

12:00 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

17h 20m1 stop Seattle/Tacoma Intl

2:45 pm - 12:11 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

16h 26m1 stop Seattle/Tacoma Intl

$880Alaska Airlines

Thu, Jan 21 - Sun, Jan 31

8:40 am - 10:40 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

19h 00m1 stop Seattle/Tacoma Intl

6:30 am - 4:00 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

16h 30m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$994Delta

Thu, Nov 26 - Thu, Dec 3

12:24 pm - 1:45 pmLWS Lewiston Nez Perce Rgnl-LHR London Heathrow

17h 21m2 stops Salt Lake City Paris Charles de Gaulle

6:30 am - 11:04 pmLHR London Heathrow-LWS Lewiston Nez Perce Rgnl

24h 34m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$1,010Delta

Wed, Dec 16 - Thu, Dec 24

4:44 pm - 4:30 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

16h 46m1 stop Los Angeles

6:20 am - 7:17 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

19h 57m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$1,046Virgin Atlantic

Wed, Dec 16 - Thu, Dec 24

5:15 am - 6:50 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

18h 35m2 stops Minneapolis St Paul Boston Logan Intl

8:55 am - 7:17 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

17h 22m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$1,198Virgin Atlantic

Recent last minute flight deals from Idaho to London

Sun, Oct 18 - Mon, Nov 2

7:00 am - 12:50 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

22h 50m1 stop Dallas/Fort Worth

10:05 am - 10:42 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

19h 37m1 stop Dallas/Fort Worth

$1,065Finnair

Sun, Oct 18 - Mon, Nov 2

2:02 pm - 10:30 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

13h 28m1 stop Phoenix Sky Harbor Intl

10:05 am - 10:42 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

19h 37m1 stop Dallas/Fort Worth

$1,065American Airlines

Sun, Oct 18 - Mon, Nov 2

11:25 am - 11:55 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

17h 30m2 stops Denver Intl Reykjavik Keflavik Intl

8:35 pm - 10:30 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

32h 55m2 stops Reykjavik Keflavik Intl Denver Intl

$1,065Multiple Airlines

Sun, Oct 18 - Mon, Nov 2

7:00 am - 12:50 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

22h 50m1 stop Dallas/Fort Worth

10:05 am - 10:42 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

19h 37m1 stop Dallas/Fort Worth

$1,066Finnair

Sun, Oct 18 - Mon, Nov 2

6:45 am - 11:20 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

21h 35m1 stop Seattle/Tacoma Intl

6:30 am - 10:08 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

22h 38m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$1,080Delta

Sun, Oct 18 - Mon, Nov 2

12:08 pm - 11:20 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

16h 12m1 stop Seattle/Tacoma Intl

6:30 am - 5:14 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

17h 44m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$1,080Delta

Sun, Oct 18 - Mon, Nov 2

5:30 am - 6:25 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

17h 55m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

6:30 am - 10:08 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

22h 38m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$1,085Delta

Sat, Oct 17 - Sat, Oct 24

10:35 am - 9:20 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

15h 45m2 stops Denver Intl Newark

4:40 pm - 9:52 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

24h 12m2 stops Washington, D.C. Dulles Intl Denver Intl

$1,366United Airlines

Sat, Oct 17 - Sat, Oct 24

10:35 am - 8:30 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

14h 55m2 stops Denver Intl Chicago O'Hare Intl

4:40 pm - 9:52 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

24h 12m2 stops Washington, D.C. Dulles Intl Denver Intl

$1,366United Airlines

Fri, Oct 16 - Sat, Oct 24

10:30 am - 9:00 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

15h 30m2 stops Denver Intl Chicago O'Hare Intl

11:05 am - 10:33 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

18h 28m2 stops Chicago O'Hare Intl Denver Intl

$2,883United Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$329

Best time to beat the crowds with an average 24% drop in price.

Most popular time to fly with an average 23% 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

Hayes

Slough

Richmond

Wembley

Salisbury

Luton

Eastbourne

Ilford

Guildford

Northampton

Swindon

Kingston upon Thames

Bedford

Crawley

Watford

Harrow

Twickenham

Ipswich

St. Albans

More options for your flight to London

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other destinations

Return flight

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

Car rentals in London

LHR

$329 Find Cheap Flights from Idaho to London - Compare and Save

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

Low season

High season

Cheapest flight

FAQs for booking Idaho to London flights

Traveling to a place near London?

More options for your flight to London

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

Information on your arrival and departure airports

Cabin class types available on flights to London

Find direct flights for London

Flights from domestic origins to Idaho

Flights to other popular destinations

Find deals for your return flight