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

The flight from Idaho to London City Airport depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Boise (a popular airport in Idaho) to London Heathrow Airport (the most popular airport in London City Airport), then the flight time is 13h 01m on average. If you fly from Idaho Falls (another popular airport in Idaho) to London Heathrow Airport, then the average flight time is 15h 55m.

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

Prices for flights from Idaho to London City Airport are updated daily.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho to London City Airport.

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

The travel and health documents required for your trip to London City Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£308 Cheap Flights from Idaho to London City Airport in 2025/26

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Idaho to London

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

14:20 - 17:40BOI-LCY

20h 20m2 stops

19:20 - 22:57LCY-BOI

34h 37m2 stops

£514Multiple Airlines

Find Deal

Sun, 1 Feb - Sun, 8 Feb

14:20 - 17:40BOI-LCY

20h 20m2 stops

19:20 - 21:23LCY-BOI

33h 03m3 stops

£517Multiple Airlines

Find Deal

Sun, 1 Feb - Sun, 8 Feb

05:00 - 12:55GEG-LCY

23h 55m3 stops

09:50 - 10:44LCY-GEG

32h 54m3 stops

£517Multiple Airlines

Find Deal

Wed, 4 Feb - Mon, 9 Feb

11:25 - 12:55GEG-LCY

17h 30m2 stops

09:50 - 10:44LCY-GEG

32h 54m2 stops

£518Multiple Airlines

Find Deal

Wed, 4 Feb - Mon, 9 Feb

07:10 - 16:35GEG-LCY

25h 25m2 stops

10:00 - 16:10LCY-GEG

37h 10m2 stops

£541Delta

Find Deal

Thu, 5 Mar - Mon, 9 Mar

14:43 - 17:40BOI-LCY

20h 57m2 stops

09:15 - 21:16LCY-BOI

19h 01m2 stops

£582Lufthansa

Find Deal

Sun, 22 Mar - Tue, 31 Mar

14:43 - 18:35BOI-LCY

20h 52m2 stops

09:15 - 21:16LCY-BOI

19h 01m2 stops

£592Lufthansa

Find Deal

Tue, 7 Apr - Fri, 17 Apr

12:45 - 09:15JAC-LCY

14h 30m2 stops

09:15 - 21:02LCY-JAC

18h 47m2 stops

£593Lufthansa

Find Deal

Sun, 22 Mar - Fri, 3 Apr

23:47 - 07:15BOI-LCY

24h 28m2 stops

13:45 - 17:39LCY-BOI

34h 54m2 stops

£1,570Delta

Find Deal

Sat, 20 Dec - Sun, 28 Dec

05:30 - 08:10BOI-LCY

19h 40m2 stops

08:40 - 23:53LCY-BOI

22h 13m2 stops

£1,838Delta

Find Deal

Fri, 26 Dec - Fri, 2 Jan

Delta flights from Idaho to London City Airport

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

Delta

5 Mar

GEG07:10Spokane

25h 25m

2 stops

LCY16:35London City

9 Mar

LCY10:00London City

37h 10m

2 stops

GEG16:10Spokane

£541

Find similar

Delta

20 Dec

BOI23:47Boise Air Term. Gowen Fld

24h 28m

2 stops

LCY07:15London City

28 Dec

LCY13:45London City

34h 54m

2 stops

BOI17:39Boise Air Term. Gowen Fld

£1,570

Find similar

Delta

26 Dec

BOI05:30Boise Air Term. Gowen Fld

19h 40m

2 stops

LCY08:10London City

2 Jan

LCY08:40London City

22h 13m

2 stops

BOI23:53Boise Air Term. Gowen Fld

£1,838

Find similar

Lufthansa flights from Idaho to London City Airport

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

Lufthansa

22 Mar

BOI14:43Boise Air Term. Gowen Fld

20h 57m

2 stops

LCY17:40London City

31 Mar

LCY09:15London City

19h 01m

2 stops

BOI21:16Boise Air Term. Gowen Fld

£582

Find similar

Lufthansa

7 Apr

BOI14:43Boise Air Term. Gowen Fld

20h 52m

2 stops

LCY18:35London City

17 Apr

LCY09:15London City

19h 01m

2 stops

BOI21:16Boise Air Term. Gowen Fld

£592

Find similar

Lufthansa

22 Mar

JAC12:45Jackson Hole

14h 30m

2 stops

LCY09:15London City

3 Apr

LCY09:15London City

18h 47m

2 stops

JAC21:02Jackson Hole

£593

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

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 1/2

14:20-17:40

2 stops20h 20m

London City

Sun 8/2

19:20-22:57

2 stops34h 37m

£514

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 1/2

14:20-17:40

2 stops20h 20m

London City

Sun 8/2

19:20-21:23

3 stops33h 03m

£517

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 4/2

05:00-12:55

3 stops23h 55m

London City

Mon 9/2

09:50-10:44

3 stops32h 54m

£517

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 4/2

11:25-12:55

2 stops17h 30m

London City

Mon 9/2

09:50-10:44

2 stops32h 54m

£518

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 5/3

07:10-16:35

2 stops25h 25m

London City

Mon 9/3

10:00-16:10

2 stops37h 10m

£541

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 22/3

14:43-17:40

2 stops20h 57m

London City

Tue 31/3

09:15-21:16

2 stops19h 01m

£582

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 7/4

14:43-18:35

2 stops20h 52m

London City

Fri 17/4

09:15-21:16

2 stops19h 01m

£592

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Sun 22/3

12:45-09:15

2 stops14h 30m

London City

Fri 3/4

09:15-21:02

2 stops18h 47m

£593

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sat 20/12

23:47-07:15

2 stops24h 28m

London City

Sun 28/12

13:45-17:39

2 stops34h 54m

£1,570

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Fri 26/12

05:30-08:10

2 stops19h 40m

London City

Fri 2/1

08:40-23:53

2 stops22h 13m

£1,838

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 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 updated daily.
How old do you have to be to fly from Idaho to London City Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho to London City Airport.
What documentation or ID do you need to fly to London City Airport?
The travel and health documents required for your trip to London City Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Canterbury

Southend-on-Sea

Ipswich

Ilford

Guildford

Dover

Colchester

Chelmsford

Hayes

Worthing

Ramsgate

Dartford

Bedford

Winchester

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to London for you.

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

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

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

Once all potential Idaho to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Idaho to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.