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Cheap flights from Idaho to London from $351

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to London departing on 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Idaho to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:45 am - 7:55 am
GEG
-
LCY
17h 10m
2 stops
Delta Logo
9:20 am - 9:10 pm
LCY
-
GEG
19h 50m
2 stops
$952Delta
Fri, Oct 2 - Fri, Oct 23
Iberia Logo
5:25 am - 2:05 pm
GEG
-
LCY
24h 40m
2 stops
Iberia Logo
7:50 am - 8:55 pm
LCY
-
GEG
21h 05m
2 stops
$980Iberia
Wed, Nov 18 - Wed, Nov 25
Iberia Logo
5:25 am - 2:05 pm
GEG
-
LCY
24h 40m
2 stops
Iberia Logo
7:50 am - 8:55 pm
LCY
-
GEG
21h 05m
2 stops
$981Iberia
Wed, Nov 18 - Wed, Nov 25
Delta Logo
11:09 am - 9:30 am
GEG
-
LCY
14h 21m
2 stops
Delta Logo
10:00 am - 10:56 pm
LCY
-
GEG
20h 56m
2 stops
$994Delta
Wed, Aug 12 - Tue, Sep 15
Lufthansa Logo
1:40 pm - 5:55 pm
GEG
-
LCY
20h 15m
2 stops
Lufthansa Logo
9:50 am - 9:05 pm
LCY
-
GEG
18h 15m
2 stops
$997Lufthansa
Sat, Oct 3 - Tue, Oct 27
Lufthansa Logo
2:44 pm - 5:55 pm
BOI
-
LCY
20h 11m
2 stops
Lufthansa Logo
9:15 am - 9:35 pm
LCY
-
BOI
19h 20m
2 stops
$1,019Lufthansa
Tue, Sep 29 - Wed, Oct 7
Lufthansa Logo
2:44 pm - 5:55 pm
BOI
-
LCY
20h 11m
2 stops
Lufthansa Logo
9:15 am - 9:35 pm
LCY
-
BOI
19h 20m
2 stops
$1,020Lufthansa
Tue, Sep 29 - Wed, Oct 7
Lufthansa Logo
2:44 pm - 5:55 pm
BOI
-
LCY
20h 11m
2 stops
Lufthansa Logo
9:15 am - 9:37 pm
LCY
-
BOI
19h 22m
2 stops
$1,026Lufthansa
Thu, Aug 13 - Thu, Aug 20
Lufthansa Logo
2:44 pm - 5:55 pm
BOI
-
LCY
20h 11m
2 stops
Lufthansa Logo
9:15 am - 9:35 pm
LCY
-
BOI
19h 20m
2 stops
$1,034Lufthansa
Tue, Sep 29 - Wed, Oct 7
Lufthansa Logo
2:44 pm - 5:55 pm
BOI
-
LCY
20h 11m
2 stops
Lufthansa Logo
9:15 am - 9:35 pm
LCY
-
BOI
19h 20m
2 stops
$1,035Lufthansa
Tue, Sep 29 - Wed, Oct 7

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Lufthansa flights from Idaho to London City Airport

Our best Lufthansa deals on Idaho to London City Airport flight tickets
Lufthansa
Oct 3
GEG1:40 pmSpokane
20h 15m
2 stops
LCY5:55 pmLondon City
Oct 27
LCY9:50 amLondon City
18h 15m
2 stops
GEG9:05 pmSpokane
$997
Lufthansa
Sep 29
BOI2:44 pmBoise Air Term. Gowen Fld
20h 11m
2 stops
LCY5:55 pmLondon City
Oct 7
LCY9:15 amLondon City
19h 20m
2 stops
BOI9:35 pmBoise Air Term. Gowen Fld
$1,019
Lufthansa
Sep 29
BOI2:44 pmBoise Air Term. Gowen Fld
20h 11m
2 stops
LCY5:55 pmLondon City
Oct 7
LCY9:15 amLondon City
19h 20m
2 stops
BOI9:35 pmBoise Air Term. Gowen Fld
$1,020

Iberia flights from Idaho to London City Airport

Our best Iberia deals on Idaho to London City Airport flight tickets
Iberia
Nov 18
GEG5:25 amSpokane
24h 40m
2 stops
LCY2:05 pmLondon City
Nov 25
LCY7:50 amLondon City
21h 05m
2 stops
GEG8:55 pmSpokane
$980
Iberia
Nov 18
GEG5:25 amSpokane
24h 40m
2 stops
LCY2:05 pmLondon City
Nov 25
LCY7:50 amLondon City
21h 05m
2 stops
GEG8:55 pmSpokane
$981
Iberia
Nov 19
GEG5:25 amSpokane
19h 25m
2 stops
LCY8:50 amLondon City
Nov 25
LCY7:50 amLondon City
21h 05m
2 stops
GEG8:55 pmSpokane
$1,036

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to London City Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 4, 2026.
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

Cheapest round-trip

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Fri 10/2

6:45 am-7:55 am

2 stops17h 10m

London City

Fri 10/23

9:20 am-9:10 pm

2 stops19h 50m

$952

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 11/18

5:25 am-2:05 pm

2 stops24h 40m

London City

Wed 11/25

7:50 am-8:55 pm

2 stops21h 05m

$980

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 11/18

5:25 am-2:05 pm

2 stops24h 40m

London City

Wed 11/25

7:50 am-8:55 pm

2 stops21h 05m

$981
Quickest round-trip

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 8/12

11:09 am-9:30 am

2 stops14h 21m

London City

Tue 9/15

10:00 am-10:56 pm

2 stops20h 56m

$994

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sat 10/3

1:40 pm-5:55 pm

2 stops20h 15m

London City

Tue 10/27

9:50 am-9:05 pm

2 stops18h 15m

$997

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 9/29

2:44 pm-5:55 pm

2 stops20h 11m

London City

Wed 10/7

9:15 am-9:35 pm

2 stops19h 20m

$1,019

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 9/29

2:44 pm-5:55 pm

2 stops20h 11m

London City

Wed 10/7

9:15 am-9:35 pm

2 stops19h 20m

$1,020

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Thu 8/13

2:44 pm-5:55 pm

2 stops20h 11m

London City

Thu 8/20

9:15 am-9:37 pm

2 stops19h 22m

$1,026

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 9/29

2:44 pm-5:55 pm

2 stops20h 11m

London City

Wed 10/7

9:15 am-9:35 pm

2 stops19h 20m

$1,034

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 9/29

2:44 pm-5:55 pm

2 stops20h 11m

London City

Wed 10/7

9:15 am-9:35 pm

2 stops19h 20m

$1,035

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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

Iberia, Delta, and Lufthansa 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

Fastest flight time

14h 21m

Direct flights

None
The fastest flight from Idaho to London City Airport takes 14h 21m
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

Frequently asked questions about flying from Idaho to London City Airport

  • 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.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Dover
Crawley
Croydon
Wembley
Stansted
Harrow
Slough
Watford
Ilford
Cobham
Brentwood
Folkestone
Guildford
Romford
Uxbridge

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.

An easier way to manage your London City Airport trip

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