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Cheap flights from the United Kingdom to Boise from £552

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Boise

Keep the following information in mind while searching for United Kingdom to Boise flight deals. Data was last updated 14 November 2025.

Round-trip from

£552

Popular in

July

Cheapest in

September

Average price

£646
Lufthansa
  • Lufthansa
  • 9/12-15/12
  • 3 total stops
  • 33h 27m total
  • United Kingdom to Boise
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£83 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from United Kingdom to Boise

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Boise
Explore the most affordable flight options available from United Kingdom to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.

Sat 6/1211:55LGW - BOI
2 stops16h 50mIcelandair
Thu 11/1212:19BOI - LGW
2 stops15h 36mIcelandair
Deal found 13/11£657
Sat 6/1212:15LHR - BOI
2 stops16h 30mIcelandair
Thu 11/1212:19BOI - LHR
2 stops15h 31mIcelandair
Deal found 13/11£660
Thu 11/1207:40LHR - BOI
2 stops17h 27mLufthansa
Fri 9/112:19BOI - LHR
1 stop12h 36mLufthansa
Deal found 13/11£668
Mon 8/1212:15LHR - BOI
2 stops17h 55mMultiple Airlines
Tue 16/1211:45BOI - LHR
2 stops16h 05mMultiple Airlines
Deal found 12/11£699
Tue 9/1212:15LHR - BOI
2 stops17h 41mMultiple Airlines
Mon 15/1211:45BOI - LHR
2 stops16h 05mMultiple Airlines
Deal found 13/11£711
Thu 4/1211:55LGW - BOI
2 stops18h 55mMultiple Airlines
Mon 15/1220:16BOI - LGW
2 stops31h 39mMultiple Airlines
Deal found 13/11£714
Mon 8/1220:35LHR - BOI
2 stops32h 10mMultiple Airlines
Mon 15/1205:45BOI - LHR
2 stops22h 05mMultiple Airlines
Deal found 13/11£715
Tue 9/1211:05LHR - BOI
1 stop20h 04mVirgin Atlantic
Sun 14/1215:54BOI - LHR
2 stops32h 56mVirgin Atlantic
Deal found 12/11£717
Thu 11/1211:55LGW - BOI
2 stops18h 15mMultiple Airlines
Fri 9/109:02BOI - LGW
2 stops18h 53mMultiple Airlines
Deal found 12/11£758
Mon 8/1211:45LGW - BOI
2 stops31h 42mIberia
Tue 16/1206:44BOI - LGW
2 stops29h 16mIberia
Deal found 12/11£805
Mon 8/1209:50LCY - BOI
2 stops32h 44mMultiple Airlines
Mon 15/1208:15BOI - LCY
2 stops21h 40mMultiple Airlines
Deal found 13/11£805
Mon 8/1211:55LGW - BOI
2 stops16h 50mMultiple Airlines
Tue 16/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 14/11£825

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Boise 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 14 November 2025.
Use the filters below to find and compare flights from the United Kingdom to Boise that are best for you.

Fly from

United Kingdom

Fly to

Boise

Route

Depart

Return

Price

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 20/4

07:25-09:54

2 stops33h 29m

Boise Air Term. Gowen Fld

Mon 27/4

17:30-20:40

2 stops20h 10m

£569

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 29/4

10:50-22:35

2 stops18h 45m

Boise Air Term. Gowen Fld

Sun 3/5

14:11-10:10

1 stop36h 59m

£578

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

10:25-22:57

1 stop19h 32m

Boise Air Term. Gowen Fld

Thu 19/2

08:41-07:25

1 stop15h 44m

£581

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 11/2

10:05-21:23

1 stop18h 18m

Boise Air Term. Gowen Fld

Wed 18/2

06:25-09:40

1 stop20h 15m

£581

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 10/2

13:45-21:23

1 stop14h 38m

Boise Air Term. Gowen Fld

Thu 19/2

08:41-07:25

1 stop15h 44m

£581

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

10:25-22:57

1 stop19h 32m

Boise Air Term. Gowen Fld

Tue 17/2

10:53-07:25

1 stop13h 32m

£581

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

13:45-21:23

1 stop14h 38m

Boise Air Term. Gowen Fld

Wed 18/2

12:16-07:55

1 stop12h 39m

£581

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 10/2

11:35-21:52

1 stop17h 17m

Boise Air Term. Gowen Fld

Mon 16/2

10:53-07:25

1 stop13h 32m

£581

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 11/2

11:35-18:07

1 stop13h 32m

Boise Air Term. Gowen Fld

Mon 16/2

05:00-09:40

1 stop21h 40m

£581

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Tue 7/4

15:40-22:21

2 stops37h 41m

Boise Air Term. Gowen Fld

Tue 14/4

16:30-14:40

2 stops15h 10m

£632

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 41 results
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Best time to book a flight from United Kingdom to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from United Kingdom 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 the United Kingdom to Boise

What is the cheapest month to book a flight from United Kingdom to Boise?

Currently, September is the cheapest month in which you can book a flight from United Kingdom to Boise (average of £512). Flying from United Kingdom to Boise in July is currently the most expensive (average of £671). 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.

What is the cheapest time of day to fly from GB to BOI?

Find hourly flight availability from United Kingdom to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.

When flying from United Kingdom to Boise, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 14% versus a flight in the afternoon.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated 14 November 2025.
See what other customers who have flown with KLM, Virgin Atlantic, andUnited Airlines from the United Kingdom to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,411 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,017 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.1
Good
578 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,572 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Boarding

7.8

Comfort

7.7

Food

7.3

Overall

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

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

  • What airport do you fly into for flights to Boise from United Kingdom?

    Boise Air Term. Gowen Fld (BOI) is the airport you will fly into if you book a flight from United Kingdom to Boise. It is only a 3.3 mi journey from Air Term. Gowen Fld (BOI) to Boise’s city center.

  • How long is the flight from United Kingdom to Boise?

    There are many flights that can get you from United Kingdom to Boise in 33h 29m. Fly via United Airlines, Icelandair, or American Airlines to get the fastest option. There are 4829 mi between United Kingdom and Boise. This flight may include one or multiple stops.

  • What are the most popular routes from United Kingdom to Boise?

    When deciding which route to take from United Kingdom to Boise consider London Heathrow - Boise Air Term. Gowen Fld, London Gatwick - Boise Air Term. Gowen Fld or London City - Boise Air Term. Gowen Fld as they are the most popular.

  • Can I find deals for flights from United Kingdom to Boise that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Boise flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Boise.

  • Can I find deals for business class flights from United Kingdom to Boise?

    Yes. Cheapflights offers flight deals from United Kingdom to Boise 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 United Kingdom to Boise?

    Currently, September is the cheapest month in which you can book a flight from United Kingdom to Boise (average of £512). Flying from United Kingdom to Boise in July is currently the most expensive (average of £671). 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

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.

Top 9 airlines flying from United Kingdom to Boise

Discover the top 9 airlines that operate flights from United Kingdom to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£528Average£682FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£546Average£712FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£553Average£720FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£612Average£815FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£614Average£953FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£638Average£846FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£662Average£745FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£669Average£794FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£699Average£825FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Boise?

Cheapflights makes it easy to find United Kingdom to Boise flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Boise?

Millions of users choose and trust Cheapflights to book the best flight deals from United Kingdom to Boise for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from United Kingdom to Boise with no change fees?

Yes, we can. To see specific flights from United Kingdom to Boise with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from United Kingdom to Boise become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Boise from United Kingdom today and book when prices fit your budget.

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