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 Edinburgh and flying into Boise (one of the most popular routes), then the duration is 16h 46m on average. Another popular route from United Kingdom to Idaho is flying from London to Boise, which will take roughly 18h 30m. Keep in mind that layovers or delays could extend your travel time.

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

Lufthansa, Finnair, and Delta are the most popular carriers 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.

$369 Cheap Flights from the United Kingdom to Idaho in 2025/26

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Find the cheapest flights from the United Kingdom to Idaho

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

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11:55 am - 11:01 pmLGW-BOI

18h 06m2 stops

9:50 am - 10:55 amBOI-LGW

18h 05m2 stops

$682Multiple Airlines

Find Deal

Mon, Feb 9 - Mon, Feb 16

12:15 pm - 11:01 pmLHR-BOI

17h 46m2 stops

6:28 am - 10:50 amBOI-LHR

21h 22m2 stops

$686Multiple Airlines

Find Deal

Mon, Feb 9 - Mon, Feb 16

7:40 am - 9:59 amLHR-BOI

33h 19m2 stops

1:50 pm - 1:30 pmBOI-LHR

16h 40m1 stop

$725United Airlines

Find Deal

Mon, Dec 8 - Mon, Dec 15

7:40 am - 9:59 amLHR-BOI

33h 19m2 stops

8:15 am - 5:55 amBOI-LHR

14h 40m1 stop

$726United Airlines

Find Deal

Mon, Dec 8 - Mon, Dec 15

7:40 am - 6:07 pmLHR-BOI

17h 27m2 stops

2:49 pm - 10:50 amBOI-LHR

37h 01m2 stops

$747Lufthansa

Find Deal

Tue, Dec 9 - Sun, Dec 14

7:40 am - 6:07 pmLHR-BOI

17h 27m2 stops

2:49 pm - 10:50 amBOI-LHR

37h 01m2 stops

$748Lufthansa

Find Deal

Tue, Dec 9 - Sun, Dec 14

11:55 am - 8:59 pmLGW-GEG

16h 04m2 stops

12:00 pm - 10:55 amGEG-LGW

15h 55m2 stops

$770Icelandair

Find Deal

Tue, Mar 10 - Tue, Mar 17

1:25 pm - 9:23 pmLHR-BOI

38h 58m2 stops

5:10 pm - 11:20 amBOI-LHR

35h 10m2 stops

$795Air Canada

Find Deal

Mon, Feb 9 - Sun, Feb 15

11:55 am - 8:59 pmLGW-GEG

16h 04m2 stops

12:44 pm - 10:55 amGEG-LGW

15h 11m2 stops

$801Icelandair

Find Deal

Tue, Mar 10 - Tue, Mar 17

2:10 pm - 11:59 pmLHR-BOI

16h 49m2 stops

6:20 am - 6:35 amBOI-LHR

17h 15m2 stops

$829Air Canada

Find Deal

Wed, Apr 29 - Sun, May 3

United Airlines flights from United Kingdom to Idaho

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

United Airlines

Dec 8

LHR7:40 amLondon Heathrow

33h 19m

2 stops

BOI9:59 amBoise Air Term. Gowen Fld

Dec 15

BOI1:50 pmBoise Air Term. Gowen Fld

16h 40m

1 stop

LHR1:30 pmLondon Heathrow

$725

Find similar

United Airlines

Dec 8

LHR7:40 amLondon Heathrow

33h 19m

2 stops

BOI9:59 amBoise Air Term. Gowen Fld

Dec 15

BOI8:15 amBoise Air Term. Gowen Fld

14h 40m

1 stop

LHR5:55 amLondon Heathrow

$726

Find similar

United Airlines

Feb 9

LHR9:00 amLondon Heathrow

19h 23m

2 stops

BOI9:23 pmBoise Air Term. Gowen Fld

Feb 16

BOI5:10 pmBoise Air Term. Gowen Fld

33h 30m

1 stop

LHR9:40 amLondon Heathrow

$731

Find similar

Lufthansa flights from United Kingdom to Idaho

Our best Lufthansa deals on United Kingdom to Idaho flight tickets

Lufthansa

Dec 9

LHR7:40 amLondon Heathrow

17h 27m

2 stops

BOI6:07 pmBoise Air Term. Gowen Fld

Dec 14

BOI2:49 pmBoise Air Term. Gowen Fld

37h 01m

2 stops

LHR10:50 amLondon Heathrow

$747

Find similar

Lufthansa

Dec 9

LHR7:40 amLondon Heathrow

17h 27m

2 stops

BOI6:07 pmBoise Air Term. Gowen Fld

Dec 14

BOI2:49 pmBoise Air Term. Gowen Fld

37h 01m

2 stops

LHR10:50 amLondon Heathrow

$748

Find similar

Lufthansa

Dec 9

LHR7:40 amLondon Heathrow

17h 27m

2 stops

BOI6:07 pmBoise Air Term. Gowen Fld

Dec 14

BOI2:49 pmBoise Air Term. Gowen Fld

32h 06m

2 stops

LHR5:55 amLondon Heathrow

$754

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 2/9

11:55 am-11:01 pm

2 stops18h 06m

Boise Air Term. Gowen Fld

Mon 2/16

9:50 am-10:55 am

2 stops18h 05m

$682

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 2/9

12:15 pm-11:01 pm

2 stops17h 46m

Boise Air Term. Gowen Fld

Mon 2/16

6:28 am-10:50 am

2 stops21h 22m

$686

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 12/8

7:40 am-9:59 am

2 stops33h 19m

Boise Air Term. Gowen Fld

Mon 12/15

1:50 pm-1:30 pm

1 stop16h 40m

$725

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 12/8

7:40 am-9:59 am

2 stops33h 19m

Boise Air Term. Gowen Fld

Mon 12/15

8:15 am-5:55 am

1 stop14h 40m

$726

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 12/9

7:40 am-6:07 pm

2 stops17h 27m

Boise Air Term. Gowen Fld

Sun 12/14

2:49 pm-10:50 am

2 stops37h 01m

$747

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 12/9

7:40 am-6:07 pm

2 stops17h 27m

Boise Air Term. Gowen Fld

Sun 12/14

2:49 pm-10:50 am

2 stops37h 01m

$748

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Tue 3/10

11:55 am-8:59 pm

2 stops16h 04m

Spokane

Tue 3/17

12:00 pm-10:55 am

2 stops15h 55m

$770

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 2/9

1:25 pm-9:23 pm

2 stops38h 58m

Boise Air Term. Gowen Fld

Sun 2/15

5:10 pm-11:20 am

2 stops35h 10m

$795

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Tue 3/10

11:55 am-8:59 pm

2 stops16h 04m

Spokane

Tue 3/17

12:44 pm-10:55 am

2 stops15h 11m

$801

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 4/29

2:10 pm-11:59 pm

2 stops16h 49m

Boise Air Term. Gowen Fld

Sun 5/3

6:20 am-6:35 am

2 stops17h 15m

$829

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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, September 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 $792. If you don’t want to visit Idaho in September, then you should wait until February to fly from United Kingdom, when ticket prices are also cheap, with an average price of $803.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Thursday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $907. On the other hand, Sunday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,365.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from United Kingdom to Idaho at noon for as low as $1,053. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Idaho, so prices are often more expensive at around $1,056 per ticket.

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $935 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from United Kingdom for as low as $770 on momondo.

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

Direct flights	None

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

Search flight deals

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.