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Cheap flights from Idaho to London City Airport from £280

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LCY
8 May — 15 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Idaho to London City

Enter your travel dates to find the best prices.

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 8 April 2026.

Wed 30/917:00
GEG
-
LCY
2 stops15h 40m
Delta
Wed 14/1009:20
LCY
-
GEG
2 stops18h 07m
Delta
Deal found 6/4£672
Tue 13/1014:43
BOI
-
LCY
2 stops20h 12m
Lufthansa
Wed 21/1009:15
LCY
-
BOI
2 stops19h 01m
Lufthansa
Deal found 6/4£688
Wed 30/913:45
GEG
-
LCY
2 stops20h 10m
Lufthansa
Wed 7/1009:15
LCY
-
GEG
2 stops19h 54m
Lufthansa
Deal found 6/4£688
Sat 3/1013:45
GEG
-
LCY
2 stops20h 10m
Lufthansa
Mon 5/1009:15
LCY
-
GEG
2 stops46h 23m
Lufthansa
Deal found 6/4£701
Mon 28/914:43
BOI
-
LCY
2 stops20h 12m
Lufthansa
Wed 14/1009:15
LCY
-
BOI
2 stops19h 01m
Lufthansa
Deal found 6/4£712
Wed 12/809:10
GEG
-
LCY
2 stops16h 20m
Delta
Tue 15/908:25
LCY
-
GEG
2 stops18h 55m
Delta
Deal found 4/4£720
Mon 5/1010:50
GEG
-
LCY
2 stops14h 40m
Delta
Mon 12/1008:25
LCY
-
GEG
2 stops19h 02m
Delta
Deal found 6/4£747
Sun 30/819:21
GEG
-
LCY
2 stops52h 34m
Delta
Thu 10/908:25
LCY
-
GEG
2 stops23h 19m
Delta
Deal found 7/4£755
Tue 5/513:00
JAC
-
LCY
2 stops20h 40m
Delta
Tue 12/509:20
LCY
-
JAC
2 stops17h 55m
Delta
Deal found 5/4£767
Sun 13/914:55
BOI
-
LCY
2 stops43h 25m
Multiple Airlines
Tue 22/906:45
LCY
-
BOI
2 stops22h 42m
Multiple Airlines
Deal found 4/4£837
Wed 30/913:45
GEG
-
LCY
2 stops20h 10m
Lufthansa
Thu 8/1009:15
LCY
-
GEG
2 stops19h 54m
Lufthansa
Deal found 6/4£843
Tue 5/514:57
BOI
-
LCY
2 stops19h 58m
Multiple Airlines
Tue 12/509:15
LCY
-
BOI
2 stops17h 56m
Multiple Airlines
Deal found 5/4£847

Find 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 8 April 2026.

Round-trip from

£672

One-way from

£280

Popular in

January

Cheapest in

October

Average price

£526
Delta
  • Delta
  • 30/9-14/10
  • 4 total stops
  • 33h 47m total
  • Idaho to London
Search Deals
Delta
  • Delta
  • 27/9
  • 2 total stops
  • 16h 20m total
  • Idaho to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£167 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£49 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 8 April 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 return flight

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 30/9

17:00-16:40

2 stops15h 40m

London City

Wed 14/10

09:20-19:27

2 stops18h 07m

£672

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 12/8

09:10-09:30

2 stops16h 20m

London City

Tue 15/9

08:25-19:20

2 stops18h 55m

£720
Fastest return journey

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Mon 5/10

10:50-09:30

2 stops14h 40m

London City

Mon 12/10

08:25-19:27

2 stops19h 02m

£747

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sun 30/8

19:21-07:55

2 stops52h 34m

London City

Thu 10/9

08:25-23:44

2 stops23h 19m

£755

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Tue 5/5

13:00-16:40

2 stops20h 40m

London City

Tue 12/5

08:25-20:15

2 stops18h 50m

£767

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sun 13/9

14:55-17:20

2 stops43h 25m

London City

Tue 22/9

06:45-22:27

2 stops22h 42m

£837

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 30/9

13:45-17:55

2 stops20h 10m

London City

Thu 8/10

09:15-21:09

2 stops19h 54m

£843

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Sat 22/8

14:44-17:55

2 stops20h 11m

London City

Wed 26/8

09:15-21:25

2 stops19h 10m

£854

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sat 3/10

13:45-17:55

2 stops20h 10m

London City

Tue 27/10

09:50-23:38

2 stops20h 48m

£859

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Tue 5/5

14:26-17:55

2 stops20h 29m

London City

Tue 12/5

09:15-21:17

2 stops19h 02m

£860

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Showing 1-10 of 41 resultsSorted by cheapest first
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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 return 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.

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.

  • How long is the flight from Idaho to London City Airport?

    Departing from Idaho to London City Airport will take you 15h 40m. The distance from Idaho to London City Airport is about 4655 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Most travelers choose Boise Air Term. Gowen Fld - London City, Spokane - London City or Jackson Hole - London City when deciding on the best route from Idaho to London City Airport.

  • 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 holiday 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.

See more FAQs

Travelling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Hounslow
Gatwick
Luton
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Chelmsford
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Idaho to London City

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Idaho to London City?

When you search for this flight from Idaho to London City, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Idaho to London City?

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Can Cheapflights find flights from Idaho to London City with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Idaho to London City flexibly with Cheapflights today.

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