How long does it take to fly to London City Airport?

On average, it takes 11h 23m to fly from Idaho to London City Airport if you fly out of Idaho Falls (the most popular airport in Idaho) and into London Heathrow Airport (the most popular airport in London City Airport). If you’re flying out of Boise and into London Heathrow Airport, then the flight time is around 13h 44m.

When did momondo last update prices for flights from Idaho to London City Airport?

Prices for flights from Idaho to London City Airport are refreshed on a daily basis.

How old do you have to be to fly from Idaho to London City Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to London City Airport.

What documentation or ID do you need to fly to London City Airport?

The required travel and health documents for your London City Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London City Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$402 Cheap Flights from Idaho to London City Airport in 2025/26

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Find the cheapest flights from Idaho to London

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Cheap round-trip flights

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5:00 am - 11:40 amGEG-LCY

22h 40m3 stops

7:10 pm - 6:03 pmLCY-GEG

30h 53m2 stops

$663Multiple Airlines

Find Deal

Fri, Feb 6 - Mon, Feb 23

2:20 pm - 5:40 pmBOI-LCY

20h 20m2 stops

7:20 pm - 10:57 pmLCY-BOI

34h 37m2 stops

$670Multiple Airlines

Find Deal

Sun, Feb 1 - Sun, Feb 8

2:20 pm - 5:40 pmBOI-LCY

20h 20m2 stops

7:20 pm - 9:23 pmLCY-BOI

33h 03m3 stops

$674Multiple Airlines

Find Deal

Sun, Feb 1 - Sun, Feb 8

11:25 am - 12:55 pmGEG-LCY

17h 30m2 stops

9:50 am - 12:46 pmLCY-GEG

34h 56m3 stops

$674Multiple Airlines

Find Deal

Wed, Feb 4 - Mon, Feb 9

2:49 pm - 4:40 pmJAC-LCY

18h 51m2 stops

5:15 pm - 8:37 pmLCY-JAC

34h 22m2 stops

$690Lufthansa

Find Deal

Wed, Dec 3 - Mon, Dec 8

9:20 am - 4:35 pmGEG-LCY

23h 15m2 stops

8:40 am - 10:45 pmLCY-GEG

45h 05m2 stops

$704Delta

Find Deal

Thu, Mar 5 - Mon, Mar 9

7:10 am - 4:35 pmGEG-LCY

25h 25m2 stops

10:00 am - 4:10 pmLCY-GEG

37h 10m2 stops

$705Delta

Find Deal

Thu, Mar 5 - Mon, Mar 9

2:43 pm - 5:40 pmBOI-LCY

20h 57m2 stops

9:15 am - 9:16 pmLCY-BOI

19h 01m2 stops

$758Lufthansa

Find Deal

Sun, Mar 22 - Tue, Mar 31

2:43 pm - 6:35 pmBOI-LCY

20h 52m2 stops

9:15 am - 9:16 pmLCY-BOI

19h 01m2 stops

$772Lufthansa

Find Deal

Tue, Apr 7 - Fri, Apr 17

11:47 pm - 7:15 amBOI-LCY

24h 28m2 stops

1:45 pm - 5:27 pmLCY-BOI

34h 42m2 stops

$2,046Delta

Find Deal

Sat, Dec 20 - Sun, Dec 28

Delta flights from Idaho to London City Airport

Our best Delta deals on Idaho to London City Airport flight tickets

Delta

Mar 5

GEG9:20 amSpokane

23h 15m

2 stops

LCY4:35 pmLondon City

Mar 9

LCY8:40 amLondon City

45h 05m

2 stops

GEG10:45 pmSpokane

$704

Find similar

Delta

Mar 5

GEG7:10 amSpokane

25h 25m

2 stops

LCY4:35 pmLondon City

Mar 9

LCY10:00 amLondon City

37h 10m

2 stops

GEG4:10 pmSpokane

$705

Find similar

Delta

Dec 20

BOI11:47 pmBoise Air Term. Gowen Fld

24h 28m

2 stops

LCY7:15 amLondon City

Dec 28

LCY1:45 pmLondon City

34h 42m

2 stops

BOI5:27 pmBoise Air Term. Gowen Fld

$2,046

Find similar

Lufthansa flights from Idaho to London City Airport

Our best Lufthansa deals on Idaho to London City Airport flight tickets

Lufthansa

Dec 3

JAC2:49 pmJackson Hole

18h 51m

2 stops

LCY4:40 pmLondon City

Dec 8

LCY5:15 pmLondon City

34h 22m

2 stops

JAC8:37 pmJackson Hole

$690

Find similar

Lufthansa

Mar 22

BOI2:43 pmBoise Air Term. Gowen Fld

20h 57m

2 stops

LCY5:40 pmLondon City

Mar 31

LCY9:15 amLondon City

19h 01m

2 stops

BOI9:16 pmBoise Air Term. Gowen Fld

$758

Find similar

Lufthansa

Apr 7

BOI2:43 pmBoise Air Term. Gowen Fld

20h 52m

2 stops

LCY6:35 pmLondon City

Apr 17

LCY9:15 amLondon City

19h 01m

2 stops

BOI9:16 pmBoise Air Term. Gowen Fld

$772

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Idaho to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Fri 2/6

5:00 am-11:40 am

3 stops22h 40m

London City

Mon 2/23

7:10 pm-6:03 pm

2 stops30h 53m

$663

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 2/1

2:20 pm-5:40 pm

2 stops20h 20m

London City

Sun 2/8

7:20 pm-10:57 pm

2 stops34h 37m

$670

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 2/1

2:20 pm-5:40 pm

2 stops20h 20m

London City

Sun 2/8

7:20 pm-9:23 pm

3 stops33h 03m

$674

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 2/4

11:25 am-12:55 pm

2 stops17h 30m

London City

Mon 2/9

9:50 am-12:46 pm

3 stops34h 56m

$674

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Wed 12/3

2:49 pm-4:40 pm

2 stops18h 51m

London City

Mon 12/8

5:15 pm-8:37 pm

2 stops34h 22m

$690

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 3/5

9:20 am-4:35 pm

2 stops23h 15m

London City

Mon 3/9

8:40 am-10:45 pm

2 stops45h 05m

$704

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 3/5

7:10 am-4:35 pm

2 stops25h 25m

London City

Mon 3/9

10:00 am-4:10 pm

2 stops37h 10m

$705

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 3/22

2:43 pm-5:40 pm

2 stops20h 57m

London City

Tue 3/31

9:15 am-9:16 pm

2 stops19h 01m

$758

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 4/7

2:43 pm-6:35 pm

2 stops20h 52m

London City

Fri 4/17

9:15 am-9:16 pm

2 stops19h 01m

$772

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sat 12/20

11:47 pm-7:15 am

2 stops24h 28m

London City

Sun 12/28

1:45 pm-5:27 pm

2 stops34h 42m

$2,046

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 Idaho to London City Airport

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

Airlines

Other information

What is the cheapest airline that flies from Idaho to London City?

Lufthansa, United Airlines, and Delta are the most popular carriers operating from Idaho to London City

Cheap Idaho to London City Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to London City Airport

Direct flights	None

There are no direct flights from Idaho to London City Airport. There are no popular flight routes from Idaho to London City Airport.

Search flight deals

When did momondo last update prices for flights from Idaho to London City Airport?
Prices for flights from Idaho to London City Airport are refreshed on a daily basis.
How old do you have to be to fly from Idaho to London City Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to London City Airport.
What documentation or ID do you need to fly to London City Airport?
The required travel and health documents for your London City Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London City Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Chelmsford

Wembley

Folkestone

Romford

Ilford

Cobham

Stansted

Harrow

Watford

Why use momondo?

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

Finding the right flight to London from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to London from Idaho with this policy.

How can momondo help me find flights from Idaho to London?

momondo provides multiple filters to help you find the best flight to London from Idaho. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to London from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.