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Cheap flights from Idaho to London City Airport from £371

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 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LCY
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

Round-trip from

£581

One-way from

£371

Popular in

June

Cheapest in

October

Average price

£1,043
Lufthansa
  • Lufthansa
  • 9/11-20/11
  • 4 total stops
  • 37h 40m total
  • Idaho to London
Search Deals
SWISS
  • SWISS
  • 23/7
  • 2 total stops
  • 35h 18m total
  • Idaho to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£148 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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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 13 June 2025.

Sun 9/1114:31BOI - LCY
2 stops18h 59mLufthansa
Thu 20/1109:40LCY - BOI
2 stops18h 41mLufthansa
Deal found 11/6£581
Tue 30/913:38GEG - LCY
2 stops18h 47mLufthansa
Fri 10/1008:55LCY - GEG
2 stops19h 29mLufthansa
Deal found 12/6£590
Mon 8/914:42BOI - LCY
2 stops35h 08mSWISS
Mon 22/908:10LCY - BOI
2 stops20h 04mSWISS
Deal found 11/6£609
Sun 9/1111:25GEG - LCY
2 stops17h 25mMultiple Airlines
Sat 22/1112:20LCY - GEG
3 stops40h 25mMultiple Airlines
Deal found 12/6£611
Wed 12/1114:40JAC - LCY
2 stops20h 00mLufthansa
Thu 20/1109:40LCY - JAC
2 stops17h 57mLufthansa
Deal found 12/6£679
Mon 15/916:34BOI - LCY
2 stops17h 56mMultiple Airlines
Wed 1/1006:45LCY - BOI
2 stops22h 55mMultiple Airlines
Deal found 12/6£792
Fri 27/610:24BOI - LCY
2 stops13h 51mDelta
Mon 21/710:00LCY - BOI
2 stops19h 17mDelta
Deal found 11/6£1,130
Sat 20/912:39JAC - LCY
2 stops41h 06mMultiple Airlines
Sun 28/919:30LCY - JAC
2 stops47h 29mMultiple Airlines
Deal found 11/6£1,186
Sun 27/715:38GEG - LCY
2 stops17h 42mKLM
Sat 2/807:45LCY - GEG
2 stops19h 25mKLM
Deal found 10/6£1,339
Sat 20/1213:15BOI - LCY
2 stops21h 05mKLM
Sun 28/1218:55LCY - BOI
2 stops28h 31mKLM
Deal found 12/6£1,386
Mon 29/915:05GEG - LCY
2 stops17h 35mDelta
Thu 9/1010:00LCY - GEG
2 stops19h 04mDelta
Deal found 11/6£4,171

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 13 June 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

Sun 9/11

14:31-16:30

2 stops18h 59m

London City

Thu 20/11

09:40-21:21

2 stops18h 41m

£581

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Wed 6/8

07:25-16:25

2 stops25h 00m

London City

Wed 20/8

08:45-21:03

2 stops20h 18m

£590

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Mon 8/9

14:42-08:50

2 stops35h 08m

London City

Mon 22/9

08:10-21:14

2 stops20h 04m

£609

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Wed 12/11

14:40-17:40

2 stops20h 00m

London City

Thu 20/11

09:40-20:37

2 stops17h 57m

£679

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Mon 15/9

16:34-17:30

2 stops17h 56m

London City

Wed 1/10

06:45-22:40

2 stops22h 55m

£792

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Thu 7/8

11:37-12:30

2 stops16h 53m

London City

Sat 30/8

09:20-10:38

2 stops33h 18m

£815

JacksonLondon

JAC - LCY

JACLCY

Jackson Hole

Fri 25/7

07:00-11:40

3 stops21h 40m

London City

Fri 1/8

17:00-17:55

2 stops31h 55m

£1,116

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Fri 27/6

10:24-07:15

2 stops13h 51m

London City

Mon 21/7

10:00-22:17

2 stops19h 17m

£1,130

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Sun 27/7

15:38-17:20

2 stops17h 42m

London City

Sat 2/8

07:45-19:10

2 stops19h 25m

£1,339

SpokaneLondon

GEG - LCY

GEGLCY

Spokane

Mon 29/9

15:05-16:40

2 stops17h 35m

London City

Thu 9/10

10:00-21:04

2 stops19h 04m

£4,171

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 21 results
1
2
3

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

Rainfall in London City by month

Plan your trip to London City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London City Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London City Airport when rainfall is around 40.0 mm.

Temperature in London City by month

Plan your trip to London City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London City Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 13 June 2025.
See what other customers who have flown with Delta, KLM and SWISS from Idaho to London have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
1,358 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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!
SWISS
7.5
Good
1,624 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,139 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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?

    For one-way options, check prices for SWISS. According to our data, you can fly for as low as £371. Users have also found prices from £454 and £467 on United Airlines and Delta, respectively.

  • 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.

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

    Currently, February is the cheapest month in which you can book a flight from Idaho to London City Airport (average of £161). Flying from Idaho to London City Airport in August is currently the most expensive (average of £214). 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

Travelling to a place near Idaho?

Book flights to Idaho if you plan to visit one of these locations
Deal
Hounslow
Croydon
Milton Keynes
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Dartford
Guildford

Browse thousands of different options on Cheapflights for your next trip

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