Cheap flights from Idaho to London from $444

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 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Idaho to London

Cheap round-trip flights

 Logo
7:23 am - 12:30 pmGEG-LCY
21h 07m2 stops
 Logo
8:45 am - 11:15 pmLCY-GEG
22h 30m3 stops
Tue, Sep 23 - Tue, Sep 30
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12:27 pm - 4:25 pmBOI-LCY
20h 58m2 stops
 Logo
8:45 am - 11:44 pmLCY-BOI
21h 59m2 stops
Wed, Sep 24 - Wed, Oct 1
Lufthansa Logo
7:00 am - 4:30 pmGEG-LCY
25h 30m2 stops
Lufthansa Logo
6:10 pm - 6:44 pmLCY-GEG
32h 34m2 stops
$728Lufthansa
Find Deal
Wed, Nov 12 - Wed, Dec 3
Delta Logo
11:19 am - 11:40 amGEG-LCY
16h 21m2 stops
Delta Logo
9:20 am - 7:46 pmLCY-GEG
18h 26m2 stops
$729Delta
Find Deal
Fri, Oct 3 - Fri, Oct 10
 Logo
7:23 am - 12:30 pmGEG-LCY
21h 07m2 stops
 Logo
8:45 am - 10:39 amLCY-GEG
33h 54m2 stops
Tue, Sep 23 - Tue, Sep 30
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12:27 pm - 6:35 pmBOI-LCY
23h 08m2 stops
 Logo
8:45 am - 10:30 pmLCY-BOI
20h 45m3 stops
Wed, Sep 24 - Wed, Oct 1
Lufthansa Logo
2:42 pm - 4:25 pmBOI-LCY
18h 43m2 stops
Lufthansa Logo
8:45 am - 9:24 pmLCY-BOI
19h 39m2 stops
$753Lufthansa
Find Deal
Tue, Sep 23 - Wed, Oct 1
Lufthansa Logo
1:38 pm - 4:25 pmGEG-LCY
18h 47m2 stops
Lufthansa Logo
8:45 am - 9:03 pmLCY-GEG
20h 18m2 stops
$853Lufthansa
Find Deal
Thu, Sep 11 - Mon, Sep 22
Delta Logo
11:30 pm - 7:15 amBOI-LCY
24h 45m2 stops
Delta Logo
1:45 pm - 4:26 pmLCY-BOI
33h 41m2 stops
$1,728Delta
Find Deal
Sat, Dec 20 - Sun, Dec 28
Delta Logo
11:30 pm - 7:15 amBOI-LCY
24h 45m2 stops
Delta Logo
1:45 pm - 4:26 pmLCY-BOI
33h 41m2 stops
$1,835Delta
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
Oct 3
GEG11:19 amSpokane
16h 21m
2 stops
LCY11:40 amLondon City
Oct 10
LCY9:20 amLondon City
18h 26m
2 stops
GEG7:46 pmSpokane
Delta
Dec 20
BOI11:30 pmBoise Air Term. Gowen Fld
24h 45m
2 stops
LCY7:15 amLondon City
Dec 28
LCY1:45 pmLondon City
33h 41m
2 stops
BOI4:26 pmBoise Air Term. Gowen Fld
Delta
Dec 20
BOI11:30 pmBoise Air Term. Gowen Fld
24h 45m
2 stops
LCY7:15 amLondon City
Dec 28
LCY1:45 pmLondon City
33h 41m
2 stops
BOI4:26 pmBoise Air Term. Gowen Fld

Lufthansa flights from Idaho to London City Airport

Our best Lufthansa deals on Idaho to London City Airport flight tickets
Lufthansa
Nov 12
GEG7:00 amSpokane
25h 30m
2 stops
LCY4:30 pmLondon City
Dec 3
LCY6:10 pmLondon City
32h 34m
2 stops
GEG6:44 pmSpokane
Lufthansa
Sep 23
BOI2:42 pmBoise Air Term. Gowen Fld
18h 43m
2 stops
LCY4:25 pmLondon City
Oct 1
LCY8:45 amLondon City
19h 39m
2 stops
BOI9:24 pmBoise Air Term. Gowen Fld
Lufthansa
Sep 11
GEG1:38 pmSpokane
18h 47m
2 stops
LCY4:25 pmLondon City
Sep 22
LCY8:45 amLondon City
20h 18m
2 stops
GEG9:03 pmSpokane

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 August 11, 2025.
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

Tue 9/23

7:23 am-12:30 pm

2 stops21h 07m

London City

Tue 9/30

8:45 am-11:15 pm

3 stops22h 30m

$687

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Wed 9/24

12:27 pm-4:25 pm

2 stops20h 58m

London City

Wed 10/1

8:45 am-11:44 pm

2 stops21h 59m

$689

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 11/12

7:00 am-4:30 pm

2 stops25h 30m

London City

Wed 12/3

6:10 pm-6:44 pm

2 stops32h 34m

$728

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Fri 10/3

11:19 am-11:40 am

2 stops16h 21m

London City

Fri 10/10

9:20 am-7:46 pm

2 stops18h 26m

$729

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Tue 9/23

7:23 am-12:30 pm

2 stops21h 07m

London City

Tue 9/30

8:45 am-10:39 am

2 stops33h 54m

$738

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Wed 9/24

12:27 pm-6:35 pm

2 stops23h 08m

London City

Wed 10/1

8:45 am-10:30 pm

3 stops20h 45m

$744

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 9/23

2:42 pm-4:25 pm

2 stops18h 43m

London City

Wed 10/1

8:45 am-9:24 pm

2 stops19h 39m

$753

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 9/11

1:38 pm-4:25 pm

2 stops18h 47m

London City

Mon 9/22

8:45 am-9:03 pm

2 stops20h 18m

$853

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sat 12/20

11:30 pm-7:15 am

2 stops24h 45m

London City

Sun 12/28

1:45 pm-4:26 pm

2 stops33h 41m

$1,728

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sat 12/20

11:30 pm-7:15 am

2 stops24h 45m

London City

Sun 12/28

1:45 pm-4:26 pm

2 stops33h 41m

$1,835

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?

Lufthansa 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

Best Price Found

$444

Fastest flight time

16h 21m

Direct flights

None
The best one-way flight to London City Airport from Idaho in the past 72 hours is $444. The best round-trip flight deal from Idaho to London City Airport found on momondo in the last 72 hours is $687.
The fastest flight from Idaho to London City Airport takes 16h 21m
There are no direct flights from Idaho to London City Airport. Popular non-direct routes for this connection are Jackson Hole Airport - London City Airport, Boise Air Term. Gowen Fld Airport - London City Airport and Spokane Airport - 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
Gatwick
Hounslow
Dover
Slough
Luton
Guildford
Milton Keynes
Dartford
Crawley
Hayes
Chelmsford
Stansted
Ilford
Brentwood
Colchester
Folkestone
Watford
Canterbury
Richmond
Wembley

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.

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1 adult
Sat 8/16
Sat 8/23

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