How long is the flight from United Kingdom to Idaho?

Flight times from United Kingdom to Idaho vary, but if you’re flying out of London and flying into Boise (one of the most popular routes), then the duration is 17h 35m on average. Another popular route from United Kingdom to Idaho is flying from Manchester to Boise, which will take roughly 34h 20m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from United Kingdom to Idaho?

United Airlines is the most popular carrier operating from United Kingdom to Idaho

When did momondo last update prices for flights from United Kingdom to Idaho?

Prices for flights from United Kingdom to Idaho are updated daily.

How old do you have to be to fly from United Kingdom to Idaho?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Idaho.

What documentation or ID do you need to fly to Idaho?

The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$547 Cheap Flights from the United Kingdom to Idaho in 2026/27

Find the cheapest flights from the United Kingdom to Idaho

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United Kingdom to Idaho

Enter your travel dates to find the best prices.

6:40 am - 10:52 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

23h 12m2 stops Kastrup Copenhagen Los Angeles

4:10 pm - 6:30 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

19h 20m2 stops Los Angeles Kastrup Copenhagen

$869Scandinavian Airlines

Mon, Nov 9 - Sat, Nov 14

9:00 am - 9:35 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

19h 35m2 stops Zurich San Francisco

8:52 pm - 9:40 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

30h 48m2 stops San Francisco Denver Intl

$891United Airlines

Tue, Jan 19 - Mon, Mar 15

2:30 pm - 11:08 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

27h 38m2 stops Vancouver Intl San Francisco

6:20 am - 7:10 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

17h 50m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

$914Air Canada

Mon, Dec 7 - Mon, Jan 25

3:20 pm - 11:08 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

26h 48m2 stops Los Angeles San Francisco

4:08 pm - 9:40 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

34h 32m2 stops San Francisco Denver Intl

$919United Airlines

Mon, Dec 7 - Sun, Feb 28

1:35 pm - 11:16 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

28h 41m2 stops Chicago O'Hare Intl San Francisco

2:43 pm - 9:40 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

12h 57m1 stop Denver Intl

$933United Airlines

Tue, Jan 19 - Mon, Mar 15

6:00 pm - 2:52 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

27h 52m2 stops Toronto Pearson Intl San Francisco

4:10 pm - 5:55 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

30h 45m2 stops San Francisco Chicago O'Hare Intl

$937United Airlines

Tue, Jan 5 - Tue, Jan 12

2:30 pm - 11:08 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

27h 38m2 stops Vancouver Intl San Francisco

12:37 pm - 5:55 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

34h 18m1 stop Chicago O'Hare Intl

$942Multiple Airlines

Mon, Dec 7 - Sun, Feb 28

2:45 pm - 6:23 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

34h 38m1 stop Seattle/Tacoma Intl

4:00 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

13h 20m1 stop Seattle/Tacoma Intl

$963Alaska Airlines

Mon, Dec 7 - Sun, Feb 28

2:45 pm - 2:19 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

30h 34m1 stop Seattle/Tacoma Intl

2:12 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

15h 08m1 stop Seattle/Tacoma Intl

$964Alaska Airlines

Fri, Dec 11 - Thu, Dec 24

6:30 am - 4:20 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

16h 50m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

2:00 pm - 10:40 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

13h 40m1 stop Seattle/Tacoma Intl

$965Multiple Airlines

Thu, Feb 4 - Fri, Feb 12

Recent last minute flight deals from the United Kingdom to Idaho

Enter your travel dates to find the best prices.

2:45 pm - 10:07 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

25h 22m1 stop Seattle/Tacoma Intl

6:00 am - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

23h 20m1 stop Seattle/Tacoma Intl

$1,166Alaska Airlines

Sat, Oct 31 - Sun, Feb 28

2:45 pm - 11:49 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

16h 04m1 stop Seattle/Tacoma Intl

8:21 am - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

20h 59m2 stops San Francisco Seattle/Tacoma Intl

$1,197Alaska Airlines

Mon, Nov 2 - Mon, Nov 23

2:45 pm - 11:49 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

16h 04m1 stop Seattle/Tacoma Intl

7:21 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

33h 59m1 stop Seattle/Tacoma Intl

$1,205Alaska Airlines

Mon, Nov 2 - Sat, Nov 21

2:45 pm - 9:07 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

25h 22m1 stop Seattle/Tacoma Intl

9:47 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

31h 33m1 stop Seattle/Tacoma Intl

$1,206Alaska Airlines

Tue, Nov 3 - Sat, Nov 21

2:45 pm - 10:33 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

25h 48m2 stops Seattle/Tacoma Intl Portland

6:00 am - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

23h 20m1 stop Seattle/Tacoma Intl

$1,216Alaska Airlines

Sat, Oct 31 - Sun, Feb 28

2:45 pm - 12:08 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

28h 23m2 stops Seattle/Tacoma Intl Los Angeles

7:06 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

34h 14m2 stops Los Angeles Seattle/Tacoma Intl

$1,226Alaska Airlines

Mon, Nov 2 - Sat, Nov 21

2:45 pm - 10:20 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

14h 35m1 stop Seattle/Tacoma Intl

7:06 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

34h 14m2 stops Los Angeles Seattle/Tacoma Intl

$1,230Alaska Airlines

Mon, Nov 2 - Sat, Nov 21

2:45 pm - 11:46 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

16h 01m2 stops Seattle/Tacoma Intl Portland

8:21 am - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

20h 59m2 stops San Francisco Seattle/Tacoma Intl

$1,238Alaska Airlines

Mon, Nov 2 - Mon, Nov 23

2:45 pm - 9:07 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

25h 22m1 stop Seattle/Tacoma Intl

7:00 am - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

22h 20m2 stops Spokane Seattle/Tacoma Intl

$1,260Alaska Airlines

Mon, Nov 2 - Sun, Nov 22

2:45 pm - 11:46 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

16h 01m2 stops Seattle/Tacoma Intl Portland

8:10 am - 12:20 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

21h 10m2 stops Los Angeles Seattle/Tacoma Intl

$1,272Alaska Airlines

Mon, Nov 2 - Tue, Nov 24

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Scandinavian Airlines flights from United Kingdom to Idaho

Our best Scandinavian Airlines deals on United Kingdom to Idaho flight tickets

Scandinavian Airlines

Nov 9

LHR6:40 amLondon Heathrow

23h 12m

2 stops

BOI10:52 pmBoise Air Term. Gowen Fld

Nov 14

BOI4:10 pmBoise Air Term. Gowen Fld

19h 20m

2 stops

LHR6:30 pmLondon Heathrow

$869

Scandinavian Airlines

Nov 4

LHR7:05 amLondon Heathrow

22h 59m

3 stops

BOI11:04 pmBoise Air Term. Gowen Fld

Nov 8

BOI4:00 pmBoise Air Term. Gowen Fld

22h 35m

3 stops

LHR9:35 pmLondon Heathrow

$877

Scandinavian Airlines

Nov 9

LHR6:40 amLondon Heathrow

23h 12m

2 stops

BOI10:52 pmBoise Air Term. Gowen Fld

Nov 14

BOI4:10 pmBoise Air Term. Gowen Fld

22h 25m

3 stops

LHR9:35 pmLondon Heathrow

$1,332

Icelandair flights from United Kingdom to Idaho

Our best Icelandair deals on United Kingdom to Idaho flight tickets

Icelandair

Nov 9

LHR12:15 pmLondon Heathrow

18h 31m

2 stops

BOI11:46 pmBoise Air Term. Gowen Fld

Nov 12

BOI12:49 pmBoise Air Term. Gowen Fld

23h 41m

2 stops

LHR7:30 pmLondon Heathrow

$1,032

Icelandair

Nov 21

MAN11:55 amManchester

17h 17m

2 stops

BOI10:12 pmBoise Air Term. Gowen Fld

Nov 28

BOI6:33 amBoise Air Term. Gowen Fld

21h 12m

2 stops

MAN10:45 amManchester

$1,227

Icelandair

Nov 5

LHR12:15 pmLondon Heathrow

17h 05m

2 stops

BOI10:20 pmBoise Air Term. Gowen Fld

Nov 24

BOI10:52 amBoise Air Term. Gowen Fld

25h 38m

2 stops

LHR7:30 pmLondon Heathrow

$1,315

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Mon 11/9

6:40 am-10:52 pm

2 stops23h 12m

Boise Air Term. Gowen Fld

Sat 11/14

4:10 pm-6:30 pm

2 stops19h 20m

$869

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Tue 1/19

9:00 am-9:35 pm

2 stops19h 35m

Boise Air Term. Gowen Fld

Mon 3/15

8:52 pm-9:40 am

2 stops30h 48m

$891

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Mon 12/7

2:30 pm-11:08 am

2 stops27h 38m

Boise Air Term. Gowen Fld

Mon 1/25

6:20 am-7:10 am

2 stops17h 50m

$914

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Mon 12/7

3:20 pm-11:08 am

2 stops26h 48m

Boise Air Term. Gowen Fld

Sun 2/28

4:08 pm-9:40 am

2 stops34h 32m

$919

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Tue 1/19

1:35 pm-11:16 am

2 stops28h 41m

Boise Air Term. Gowen Fld

Mon 3/15

2:43 pm-9:40 am

1 stop12h 57m

$933

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Tue 1/5

6:00 pm-2:52 pm

2 stops27h 52m

Boise Air Term. Gowen Fld

Tue 1/12

4:10 pm-5:55 am

2 stops30h 45m

$937

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Mon 12/7

2:30 pm-11:08 am

2 stops27h 38m

Boise Air Term. Gowen Fld

Sun 2/28

12:37 pm-5:55 am

1 stop34h 18m

$942

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Mon 12/7

2:45 pm-6:23 pm

1 stop34h 38m

Boise Air Term. Gowen Fld

Sun 2/28

4:00 pm-12:20 pm

1 stop13h 20m

$963

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Fri 12/11

2:45 pm-2:19 pm

1 stop30h 34m

Boise Air Term. Gowen Fld

Thu 12/24

2:12 pm-12:20 pm

1 stop15h 08m

$964

Quickest round-trip

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Thu 2/4

6:30 am-4:20 pm

2 stops16h 50m

Boise Air Term. Gowen Fld

Fri 2/12

2:00 pm-10:40 am

1 stop13h 40m

$965

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United Kingdom to Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Idaho?

In general, March is the cheapest month to fly from United Kingdom to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $874. If you don’t want to visit Idaho in March, then you should wait until February to fly from United Kingdom, when ticket prices are also cheap, with an average price of $876.

Can stopping save me money on United Kingdom to Idaho flights?

You could potentially save up to 17% on your flight if you consider stops on a United Kingdom to Idaho flight.

Cheap United Kingdom to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Idaho

Best Price Found	$547
Fastest flight time	16h 53m
Direct flights	None

The best one-way flight to Idaho from United Kingdom in the past 72 hours is $547. The best round-trip flight deal from United Kingdom to Idaho found on momondo in the last 72 hours is $869.

The fastest flight from United Kingdom to Idaho takes 16h 53m

There are no direct flights from United Kingdom to Idaho. There are no popular flight routes from United Kingdom to Idaho.

Search flight deals

Frequently asked questions about flying from the United Kingdom to Idaho

When did momondo last update prices for flights from United Kingdom to Idaho?
Prices for flights from United Kingdom to Idaho are updated daily.
How old do you have to be to fly from United Kingdom to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Idaho.
What documentation or ID do you need to fly to Idaho?
The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Idaho?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United Kingdom to Idaho. momondo saves you time and could save you money on your trip.

Can I find flights from United Kingdom to Idaho with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for United Kingdom to Idaho flights to just show those with flexible booking policies.

How can momondo help me find flights from United Kingdom to Idaho?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to Idaho.

I’m not ready to book a flight from United Kingdom to Idaho right now. Can momondo alert me if prices change?

If you are not ready to book a flight from United Kingdom to Idaho now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho and let you know when they change.