HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London City

$434+ Cheap flights from Idaho to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LCY
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to London City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho to London City

Keep the following information in mind while searching for Idaho to London City flight deals. Data was last updated July 29, 2025.

Round-trip from

$681
(Delta)

One-way from

$434
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,232
From Idaho to London City
Search Deals
One-way flight from Idaho to London City
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($291 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Idaho to London City

Cheapest flights from Idaho to London City
Explore the most affordable flight options available from Idaho to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:00 pmBOI - LCY
2 stops15h 40mDelta
Tue 9/1610:00 amLCY - BOI
2 stops20h 59mDelta
Deal found 7/27$681
This Lufthansa deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:42 pmBOI - LCY
2 stops18h 43mLufthansa
Wed 9/178:45 amLCY - BOI
2 stops19h 29mLufthansa
Deal found 7/28$692
This Gurufare deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:00 amGEG - LCY
2 stops25h 30mLufthansa
Wed 11/126:10 pmLCY - GEG
2 stops34h 35mLufthansa
Deal found 7/27$731
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/311:25 amGEG - LCY
2 stops17h 25mMultiple Airlines
Tue 11/117:10 pmLCY - GEG
3 stops33h 35mMultiple Airlines
Deal found 7/28$733
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/108:00 amJAC - LCY
2 stops18h 30mDelta
Wed 9/179:20 amLCY - JAC
2 stops19h 09mDelta
Deal found 7/27$878
This Expedia deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:42 pmBOI - LCY
2 stops18h 43mMultiple Airlines
Thu 9/187:20 pmLCY - BOI
2 stops32h 54mMultiple Airlines
Deal found 7/27$1,052
This Booking.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/202:40 pmJAC - LCY
2 stops20h 00mLufthansa
Fri 11/286:15 pmLCY - JAC
2 stops33h 22mLufthansa
Deal found 7/28$1,471
This KLM deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/288:00 amJAC - LCY
2 stops16h 15mKLM
Fri 12/196:55 pmLCY - JAC
2 stops26h 08mKLM
Deal found 7/29$1,804
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:30 amGEG - LCY
2 stops18h 20mDelta
Fri 1/27:45 amLCY - GEG
2 stops21h 48mDelta
Deal found 7/28$3,801

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to London City 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, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Idaho to London City Airport that are best for you.

Fly from

Idaho

Fly to

London City

Route

Depart

Return

Price

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Wed 9/3

6:00 pm-4:40 pm

2 stops15h 40m

London City

Tue 9/16

10:00 am-11:59 pm

2 stops20h 59m

$681

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 9/9

2:42 pm-4:25 pm

2 stops18h 43m

London City

Wed 9/17

8:45 am-9:14 pm

2 stops19h 29m

$692

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 8/14

1:37 pm-4:25 pm

2 stops18h 48m

London City

Thu 9/4

8:45 am-9:03 pm

2 stops20h 18m

$846

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Wed 9/10

8:00 am-9:30 am

2 stops18h 30m

London City

Wed 9/17

9:20 am-9:29 pm

2 stops19h 09m

$878

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Thu 9/11

2:42 pm-4:25 pm

2 stops18h 43m

London City

Thu 9/18

7:20 pm-9:14 pm

2 stops32h 54m

$1,052

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 8/14

7:00 am-12:30 pm

2 stops21h 30m

London City

Thu 9/4

8:45 am-11:05 pm

3 stops22h 20m

$1,127

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Thu 11/20

2:40 pm-5:40 pm

2 stops20h 00m

London City

Fri 11/28

6:15 pm-8:37 pm

2 stops33h 22m

$1,471

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Thu 8/28

8:00 am-7:15 am

2 stops16h 15m

London City

Fri 12/19

6:55 pm-2:03 pm

2 stops26h 08m

$1,804

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 10/15

1:52 pm-10:20 am

3 stops36h 28m

$434

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Mon 8/25

7:45 am-12:30 pm

2 stops21h 45m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 19 results
1
2

Best time to book a flight from Idaho to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to London City Airport
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Delta, KLM, and United Airlines from Idaho to London City Airport. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,265 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Idaho to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Idaho to London City Airport one-way?

    $436 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Lufthansa and Delta, with prices starting from $442 and $524, respectively.

  • What are the most popular routes from Idaho to London City Airport?

    The most popular flight routes from Idaho to London City Airport are Boise Air Term. Gowen Fld - London City, Spokane - London City and Jackson Hole - London City.

  • Can I find deals for flights from Idaho to London City that include hotel bookings?

    Yes. In addition to deals on Idaho to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to London City.

  • Can I find deals for business class flights from Idaho to London City?

    Yes. Cheapflights offers flight deals from Idaho to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to London City Airport?

    Currently, April is the cheapest month in which you can book a flight from Idaho to London City Airport (average of $686). Flying from Idaho to London City Airport in July is currently the most expensive (average of $1,046). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Orpington
Watford
Gatwick
Borehamwood
Dartford
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Arundel
Milton Keynes
Bishop's Stortford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to London City

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Heathrow flights
John F Kennedy Intl to Heathrow flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Gatwick flights
Newark to Gatwick flights
LaGuardia to Heathrow flights
Newark to London City flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
Boston to Heathrow flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to Luton flights
O'Hare Intl to Heathrow flights
Newark to Stansted flights
Dallas/Fort Worth to Heathrow flights
Seattle to Heathrow flights
Baltimore to Heathrow flights
San Francisco to Heathrow flights
Newark to Luton flights
Miami to Heathrow flights
Atlanta to Heathrow flights
Boston to Gatwick flights
Reagan-National to Heathrow flights
Denver to Heathrow flights
Orlando to Heathrow flights
Philadelphia to Heathrow flights
Boston to London City flights
Dulles Intl to Gatwick flights
Hobby to Heathrow flights
Dulles Intl to London City flights
Seattle to Gatwick flights
O'Hare Intl to Gatwick flights
O'Hare Intl to London City flights
Baltimore to Gatwick flights
San Francisco to Gatwick flights
LaGuardia to Stansted flights
Los Angeles to London City flights
Dallas/Fort Worth to Gatwick flights
Los Angeles to Gatwick flights
San Francisco to London City flights
Reagan-National to Gatwick flights
Orlando to Gatwick flights
Minneapolis to Heathrow flights
Seattle to London City flights
George Bush Intcntl to Heathrow flights
Detroit to Heathrow flights
Atlanta to Gatwick flights
Tampa to Heathrow flights
Charlotte to Heathrow flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.