Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Idaho to London from $456

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 7/26. 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
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Idaho to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
2:37 pm - 5:55 pm
BOI
-
LCY
20h 18m
2 stops
Lufthansa Logo
9:15 am - 9:22 pm
LCY
-
BOI
19h 07m
2 stops
$1,008Lufthansa
Tue, Apr 21 - Tue, Apr 28
Lufthansa Logo
2:37 pm - 5:55 pm
BOI
-
LCY
20h 18m
2 stops
Lufthansa Logo
9:15 am - 9:22 pm
LCY
-
BOI
19h 07m
2 stops
$1,063Lufthansa
Tue, Apr 21 - Tue, Apr 28
KLM Logo
11:05 am - 9:30 am
GEG
-
LCY
14h 25m
2 stops
KLM Logo
8:45 pm - 3:31 pm
LCY
-
GEG
26h 46m
2 stops
$1,070KLM
Sun, May 10 - Sun, May 17
Multiple Airlines Logo
12:10 pm - 6:20 pm
BOI
-
LCY
23h 10m
2 stops
Multiple Airlines Logo
6:45 am - 10:27 pm
LCY
-
BOI
22h 42m
2 stops
$1,149Multiple Airlines
Sun, Sep 13 - Tue, Sep 22
Iberia Logo
6:00 am - 3:15 pm
GEG
-
LCY
25h 15m
2 stops
Iberia Logo
9:35 am - 8:33 pm
LCY
-
GEG
42h 58m
2 stops
$1,183Iberia
Tue, May 5 - Tue, May 19
Iberia Logo
6:00 am - 9:10 am
GEG
-
LCY
43h 10m
2 stops
Iberia Logo
9:35 am - 8:47 pm
LCY
-
GEG
43h 12m
2 stops
$1,185Iberia
Wed, Aug 12 - Tue, Sep 15
Multiple Airlines Logo
2:57 pm - 5:55 pm
BOI
-
LCY
19h 58m
2 stops
Multiple Airlines Logo
9:15 am - 11:02 pm
LCY
-
BOI
20h 47m
2 stops
$1,190Multiple Airlines
Sun, Apr 26 - Tue, May 12
Delta Logo
6:41 pm - 4:40 pm
BOI
-
LCY
14h 59m
2 stops
Delta Logo
10:00 am - 10:28 pm
LCY
-
BOI
19h 28m
2 stops
$1,293Delta
Sun, May 31 - Tue, Jun 9
KLM Logo
1:21 pm - 11:40 am
JAC
-
LCY
15h 19m
2 stops
KLM Logo
9:20 am - 8:10 pm
LCY
-
JAC
17h 50m
2 stops
$2,244KLM
Fri, Jun 19 - Mon, Jun 29
Delta Logo
7:00 am - 7:15 am
JAC
-
LCY
17h 15m
2 stops
Delta Logo
7:45 am - 9:29 pm
LCY
-
JAC
20h 44m
2 stops
$2,682Delta
Mon, Jul 6 - Sat, Jul 11

Lufthansa flights from Idaho to London City Airport

Our best Lufthansa deals on Idaho to London City Airport flight tickets
Lufthansa
Apr 21
BOI2:37 pmBoise Air Term. Gowen Fld
20h 18m
2 stops
LCY5:55 pmLondon City
Apr 28
LCY9:15 amLondon City
19h 07m
2 stops
BOI9:22 pmBoise Air Term. Gowen Fld
$1,008
Lufthansa
Aug 10
BOI2:41 pmBoise Air Term. Gowen Fld
20h 14m
2 stops
LCY5:55 pmLondon City
Aug 21
LCY9:15 amLondon City
19h 10m
2 stops
BOI9:25 pmBoise Air Term. Gowen Fld
$1,090
Lufthansa
May 5
GEG12:25 pmSpokane
21h 30m
2 stops
LCY5:55 pmLondon City
May 19
LCY9:15 amLondon City
20h 25m
2 stops
GEG9:40 pmSpokane
$1,118

KLM flights from Idaho to London City Airport

Our best KLM deals on Idaho to London City Airport flight tickets
KLM
May 10
GEG11:05 amSpokane
14h 25m
2 stops
LCY9:30 amLondon City
May 17
LCY8:45 pmLondon City
26h 46m
2 stops
GEG3:31 pmSpokane
$1,070
KLM
Jun 19
JAC1:21 pmJackson Hole
15h 19m
2 stops
LCY11:40 amLondon City
Jun 29
LCY9:20 amLondon City
17h 50m
2 stops
JAC8:10 pmJackson Hole
$2,244

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 March 30, 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

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 4/21

2:37 pm-5:55 pm

2 stops20h 18m

London City

Tue 4/28

9:15 am-9:22 pm

2 stops19h 07m

$1,008

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 4/21

2:37 pm-5:55 pm

2 stops20h 18m

London City

Tue 4/28

9:15 am-9:22 pm

2 stops19h 07m

$1,063

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sun 5/10

11:05 am-9:30 am

2 stops14h 25m

London City

Sun 5/17

8:45 pm-3:31 pm

2 stops26h 46m

$1,070

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 9/13

12:10 pm-6:20 pm

2 stops23h 10m

London City

Tue 9/22

6:45 am-10:27 pm

2 stops22h 42m

$1,149

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Tue 5/5

6:00 am-3:15 pm

2 stops25h 15m

London City

Tue 5/19

9:35 am-8:33 pm

2 stops42h 58m

$1,183

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 8/12

6:00 am-9:10 am

2 stops43h 10m

London City

Tue 9/15

9:35 am-8:47 pm

2 stops43h 12m

$1,185

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 4/26

2:57 pm-5:55 pm

2 stops19h 58m

London City

Tue 5/12

9:15 am-11:02 pm

2 stops20h 47m

$1,190

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 5/31

6:41 pm-4:40 pm

2 stops14h 59m

London City

Tue 6/9

10:00 am-10:28 pm

2 stops19h 28m

$1,293
Quickest round-trip

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Fri 6/19

1:21 pm-11:40 am

2 stops15h 19m

London City

Mon 6/29

9:20 am-8:10 pm

2 stops17h 50m

$2,244

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Mon 7/6

7:00 am-7:15 am

2 stops17h 15m

London City

Sat 7/11

7:45 am-9:29 pm

2 stops20h 44m

$2,682

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, 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

Fastest flight time

14h 59m

Direct flights

None
The fastest flight from Idaho to London City Airport takes 14h 59m
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.

Traveling to a place near London?

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

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 4/29
Wed 5/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $488
Flights to London Gatwick Airportfrom $431
Flights to London Stansted Airportfrom $508
Flights to London Luton Airportfrom $545
Flights to Glasgow Intl Airportfrom $579
Flights to Belfast Intl Airportfrom $704
Flights to London Southend Airportfrom $680
Flights to Belfast City Airportfrom $687