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Cheap flights from the United Kingdom to Boise from £550

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
7 Dec — 14 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 7 November 2025.

Round-trip from

£480

Popular in

July

Cheapest in

September

Average price

£657
9/2-16/2
  • 9/2-16/2
  • 4 total stops
  • 40h 06m total
  • United Kingdom to Boise
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£93 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£17 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 7 November 2025.

Tue 9/1206:35LHR - BOI
2 stops34h 24mUnited Airlines
Mon 15/1209:40BOI - LHR
1 stop17h 00mUnited Airlines
Deal found 6/11£550
Mon 8/1206:30LHR - BOI
2 stops20h 13mUnited Airlines
Mon 15/1210:40BOI - LHR
1 stop16h 00mUnited Airlines
Deal found 6/11£552
Tue 9/1206:35LHR - BOI
2 stops18h 32mUnited Airlines
Sun 14/1217:25BOI - LHR
1 stop33h 15mUnited Airlines
Deal found 6/11£558
Mon 8/1211:35LHR - BOI
1 stop13h 32mLufthansa
Mon 15/1214:49BOI - LHR
1 stop11h 51mLufthansa
Deal found 6/11£562
Tue 9/1206:35LHR - BOI
2 stops18h 32mLufthansa
Sun 14/1214:49BOI - LHR
2 stops37h 01mLufthansa
Deal found 7/11£571
Mon 8/1211:55LGW - BOI
2 stops18h 01mMultiple Airlines
Tue 16/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 6/11£670
Mon 8/1211:55LGW - BOI
2 stops18h 01mMultiple Airlines
Mon 15/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 7/11£710
Thu 11/1211:55LGW - BOI
2 stops18h 15mMultiple Airlines
Fri 9/109:02BOI - LGW
2 stops18h 53mMultiple Airlines
Deal found 5/11£719
Thu 4/1209:25EDI - BOI
2 stops20h 20mUnited Airlines
Thu 11/1208:15BOI - EDI
2 stops19h 15mUnited Airlines
Deal found 6/11£734
Mon 8/1208:40LCY - BOI
2 stops22h 29mVirgin Atlantic
Mon 15/1205:35BOI - LCY
2 stops28h 00mVirgin Atlantic
Deal found 5/11£777
Mon 8/1209:50LCY - BOI
2 stops32h 44mMultiple Airlines
Mon 15/1208:15BOI - LCY
2 stops21h 40mMultiple Airlines
Deal found 6/11£826
Mon 8/1208:40LCY - BOI
2 stops22h 29mVirgin Atlantic
Tue 16/1205:35BOI - LCY
2 stops28h 00mVirgin Atlantic
Deal found 6/11£850

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 7 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

Tue 9/12

06:35-09:59

2 stops34h 24m

Boise Air Term. Gowen Fld

Mon 15/12

09:40-09:40

1 stop17h 00m

£550

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 8/12

07:30-19:43

2 stops19h 13m

Boise Air Term. Gowen Fld

Mon 15/12

06:20-06:40

2 stops17h 20m

£552

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Wed 18/2

10:53-07:25

1 stop13h 32m

£558

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Tue 17/2

14:40-09:40

1 stop12h 00m

£558

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Thu 19/2

12:16-07:55

1 stop12h 39m

£558

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Sun 15/2

12:16-05:55

1 stop34h 39m

£567

LondonBoise

LCY - BOI

LCYBOI

London City

Mon 20/4

09:15-21:36

2 stops19h 21m

Boise Air Term. Gowen Fld

Mon 27/4

12:00-18:35

2 stops47h 35m

£615

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 20/4

15:40-22:21

2 stops37h 41m

Boise Air Term. Gowen Fld

Mon 27/4

17:30-14:40

2 stops38h 10m

£625

BirminghamBoise

BHX - BOI

BHXBOI

Birmingham

Mon 9/2

13:20-11:25

2 stops29h 05m

Boise Air Term. Gowen Fld

Wed 18/2

18:55-12:35

2 stops34h 40m

£668

BirminghamBoise

BHX - BOI

BHXBOI

Birmingham

Mon 9/2

08:45-22:57

2 stops21h 12m

Boise Air Term. Gowen Fld

Thu 19/2

06:25-12:35

2 stops23h 10m

£668

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 42 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 £515). Flying from United Kingdom to Boise in July is currently the most expensive (average of £674). 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 7 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 7 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
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

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
1,405 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

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
672 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

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
9,007 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

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
572 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

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
7,558 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

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 19h 21m. Fly via United Airlines, Lufthansa, or Icelandair to get the fastest option. There are 4843 mi between United Kingdom and Boise. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from United Kingdom to Boise one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as £712. However, be on the lookout for offers from Delta and Icelandair, as they are both options that can get you from United Kingdom to Boise for a low price.

  • 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 £515). Flying from United Kingdom to Boise in July is currently the most expensive (average of £674). 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£530Average£685FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£549Average£716FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£556Average£724FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£615Average£819FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£617Average£958FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£642Average£851FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£665Average£749FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£673Average£798FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£703Average£830FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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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