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Cheap flights from Idaho to London City Airport from £259

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 16/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LCY
8 Jun — 15 Jun1
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 9 May 2026.

Wed 9/913:30
GEG
-
LCY
2 stops36h 00m
Delta
Thu 24/908:25
LCY
-
GEG
2 stops20h 39m
Delta
Deal found 5/5£667
Sat 12/917:40
GEG
-
LCY
2 stops31h 50m
Delta
Tue 29/908:25
LCY
-
GEG
2 stops20h 39m
Delta
Deal found 5/5£671
Sun 27/913:37
GEG
-
LCY
2 stops20h 18m
Lufthansa
Tue 13/1009:15
LCY
-
GEG
2 stops19h 38m
Lufthansa
Deal found 6/5£687
Tue 6/1013:37
GEG
-
LCY
2 stops20h 18m
Lufthansa
Tue 20/1009:15
LCY
-
GEG
2 stops19h 38m
Lufthansa
Deal found 7/5£702
Thu 10/909:10
GEG
-
LCY
2 stops16h 20m
Delta
Thu 24/908:25
LCY
-
GEG
2 stops20h 39m
Delta
Deal found 5/5£704
Thu 1/1010:50
GEG
-
LCY
2 stops14h 40m
KLM
Thu 15/1009:20
LCY
-
GEG
2 stops20h 17m
KLM
Deal found 8/5£705
Sat 3/1013:37
GEG
-
LCY
2 stops20h 18m
Lufthansa
Tue 27/1009:50
LCY
-
GEG
2 stops18h 19m
Lufthansa
Deal found 7/5£706
Fri 11/917:40
GEG
-
LCY
2 stops54h 15m
Delta
Tue 29/908:25
LCY
-
GEG
2 stops20h 39m
Delta
Deal found 5/5£709
Tue 11/813:38
GEG
-
LCY
2 stops20h 17m
Lufthansa
Fri 21/809:15
LCY
-
GEG
2 stops19h 59m
Lufthansa
Deal found 8/5£717
Thu 1/1013:37
GEG
-
LCY
2 stops20h 18m
Lufthansa
Tue 13/1009:15
LCY
-
GEG
2 stops19h 38m
Lufthansa
Deal found 6/5£724
Sun 9/810:35
BOI
-
LCY
2 stops15h 55m
Delta
Sat 15/809:20
LCY
-
BOI
2 stops20h 10m
Delta
Deal found 7/5£753
Mon 10/814:41
BOI
-
LCY
2 stops20h 14m
Lufthansa
Thu 20/809:15
LCY
-
BOI
2 stops19h 22m
Lufthansa
Deal found 7/5£831

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 9 May 2026.

Round-trip from

£667

One-way from

£259

Popular in

January

Cheapest in

October

Average price

£637
Delta
  • Delta
  • 9/9-24/9
  • 4 total stops
  • 56h 39m total
  • Idaho to London
Search Deals
Delta
  • Delta
  • 16/8
  • 2 total stops
  • 37h 40m total
  • Idaho to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£158 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£47 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 9 May 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

Mon 14/9

05:20-16:40

2 stops27h 20m

London City

Tue 29/9

08:25-21:04

2 stops20h 39m

£667

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sun 13/9

05:20-09:30

2 stops20h 10m

London City

Thu 24/9

10:00-19:20

2 stops41h 20m

£667

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sat 12/9

17:40-09:30

2 stops31h 50m

London City

Tue 29/9

08:25-21:04

2 stops20h 39m

£671

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 1/10

10:50-09:30

2 stops14h 40m

London City

Thu 15/10

09:20-21:37

2 stops20h 17m

£705

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sat 3/10

13:37-17:55

2 stops20h 18m

London City

Tue 27/10

09:50-21:09

2 stops18h 19m

£706

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Fri 11/9

17:40-07:55

2 stops54h 15m

London City

Wed 23/9

09:20-19:20

2 stops18h 00m

£709

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Tue 11/8

13:38-17:55

2 stops20h 17m

London City

Fri 21/8

09:15-21:14

2 stops19h 59m

£717

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sat 12/9

17:40-09:30

2 stops31h 50m

London City

Fri 25/9

10:00-21:04

2 stops19h 04m

£765

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Tue 11/8

13:37-17:55

2 stops20h 18m

London City

Tue 18/8

09:15-21:14

2 stops19h 59m

£794

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 10/9

09:10-09:30

2 stops16h 20m

London City

Fri 25/9

10:00-21:04

2 stops19h 04m

£798

Flights are sorted by cheapest return flights first.

Deals found on 6/5

Showing 1-10 of 44 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 14h 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 Spokane - London City, Boise Air Term. Gowen Fld - 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
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford
Chelmsford

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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Fly with Cheapflights

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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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Not ready to book yet? You can track prices for flights from Idaho to London City on Cheapflights with our Price Alert feature and get notified when better prices are available.

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