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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BOI
18 Jan — 25 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Boise Air Term. Gowen Fld are usually found in September or February, booked 16 days in advance, depart on a Tuesday or Wednesday and return on a Monday
Cheap flight deals from London to Boise
Enter your travel dates to find the best prices.
Cheapest flights from London to Boise
Explore the most affordable flight options available from London to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2025.
Sat 20/1206:30LHR - BOI
2 stops21h 56mLufthansa
Mon 22/1210:42BOI - LHR
1 stop15h 58mLufthansa
Deal found 16/12£1,345
Sat 20/1210:15LHR - BOI
1 stop18h 47mIberia
Mon 22/1207:00BOI - LHR
1 stop20h 00mIberia
Deal found 16/12£1,369
Sat 20/1218:00LHR - BOI
2 stops25h 39mMultiple Airlines
Mon 22/1210:42BOI - LHR
3 stops17h 38mMultiple Airlines
Deal found 16/12£3,722
Best flights from London to Boise
Discover carefully curated flight deals from London to Boise that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 2025.
Sat 31/112:15LHR - BOI
2 stops17h 46mMultiple Airlines
Sat 7/209:02BOI - LHR
2 stops18h 48mMultiple Airlines
Deal found 17/12£490
Tue 10/306:35LHR - BOI
2 stops20h 54mLufthansa
Tue 31/314:40BOI - LHR
2 stops19h 25mLufthansa
Deal found 17/12£552
Wed 18/311:10LHR - BOI
2 stops40h 19mUnited Airlines
Tue 19/508:20BOI - LHR
1 stop19h 50mUnited Airlines
Deal found 17/12£572
Thu 22/111:55LGW - BOI
2 stops16h 10mIcelandair
Mon 26/111:35BOI - LGW
2 stops16h 20mIcelandair
Deal found 17/12£787
Tue 17/307:40LHR - BOI
2 stops19h 49mLufthansa
Tue 31/310:35BOI - LHR
1 stop18h 45mLufthansa
Deal found 17/12£559
Tue 17/313:35LHR - BOI
1 stop15h 21mUnited Airlines
Tue 31/310:35BOI - LHR
1 stop16h 05mUnited Airlines
Deal found 17/12£583
Tue 10/311:35LHR - BOI
1 stop15h 54mUnited Airlines
Tue 31/314:40BOI - LHR
1 stop14h 40mUnited Airlines
Deal found 17/12£583
Fri 27/211:10LHR - BOI
2 stops19h 38mUnited Airlines
Mon 9/310:21BOI - LHR
1 stop17h 19mUnited Airlines
Deal found 18/12£588
Fri 20/206:35LHR - BOI
2 stops34h 37mUnited Airlines
Mon 2/310:53BOI - LHR
1 stop13h 32mUnited Airlines
Deal found 18/12£588
Thu 22/106:35LHR - BOI
2 stops18h 32mUnited Airlines
Mon 26/114:37BOI - LHR
1 stop12h 03mUnited Airlines
Deal found 17/12£588
Sat 7/311:55LGW - BOI
2 stops17h 45mMultiple Airlines
Sat 14/311:54BOI - LGW
2 stops17h 01mMultiple Airlines
Deal found 17/12£1,035
Sat 7/308:40LCY - BOI
3 stops44h 20mMultiple Airlines
Sat 14/308:16BOI - LCY
3 stops44h 34mMultiple Airlines
Deal found 17/12£9,847
Last-minute flights from London to Boise
Discover last-minute flight deals from London to Boise. Data last updated 19 December 2025 and is based on user searches.
Sat 20/1206:30LHR - BOI
2 stops21h 56mLufthansa
Mon 22/1210:42BOI - LHR
1 stop15h 58mLufthansa
Deal found 16/12£1,345
Sat 20/1210:15LHR - BOI
1 stop18h 47mIberia
Mon 22/1207:00BOI - LHR
1 stop20h 00mIberia
Deal found 16/12£1,369
Thu 15/109:10LHR - BOI
2 stops20h 47mUnited Airlines
Mon 19/114:37BOI - LHR
1 stop12h 03mUnited Airlines
Deal found 18/12£642
Thu 22/106:35LHR - BOI
2 stops18h 32mUnited Airlines
Mon 26/114:37BOI - LHR
1 stop12h 03mUnited Airlines
Deal found 17/12£588
Thu 22/111:55LGW - BOI
2 stops16h 10mIcelandair
Mon 26/111:35BOI - LGW
2 stops16h 20mIcelandair
Deal found 17/12£787
Sat 31/112:15LHR - BOI
2 stops17h 46mMultiple Airlines
Sat 7/209:02BOI - LHR
2 stops18h 48mMultiple Airlines
Deal found 17/12£490
Sat 31/106:35LHR - BOI
2 stops19h 38mLufthansa
Sat 7/208:15BOI - LHR
1 stop20h 00mLufthansa
Deal found 17/12£619
One-way flights from London to Boise
Search for one-way flight options from London to Boise. Find affordable one-way fares based on user searches. Data last updated 19 December 2025.
Thu 15/114:50LHR - BOI
2 stops15h 11mMultiple Airlines
Deal found 17/12£389
Sun 25/119:30LHR - BOI
2 stops29h 37mLufthansa
Deal found 16/12£495
Sun 25/114:30LHR - BOI
2 stops32h 40mAir Canada
Deal found 16/12£537
Sun 25/113:45LHR - BOI
1 stop17h 03mUnited Airlines
Deal found 16/12£544
Thu 15/111:35LHR - BOI
1 stop13h 32mLufthansa
Deal found 17/12£550
Sun 25/111:55LGW - BOI
2 stops16h 10mIcelandair
Deal found 16/12£670
Sun 25/106:40LHR - BOI
3 stops22h 38mScandinavian Airlines
Deal found 16/12£2,747
Sun 25/112:35LCY - BOI
3 stops40h 34mMultiple Airlines
Deal found 16/12£6,207
Sun 25/118:40LGW - BOI
3 stops35h 22mMultiple Airlines
Deal found 16/12£6,208
Find flight deals from London to Boise
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 December 2025.
Customise your flight search to find flights from London 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 19 December 2025.
Use the filters below to find and compare flights from London to Boise that are best for you.
Fly from
London
Fly to
Boise
Route
Depart
Return
Price
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Sat 31/1
12:15-23:01
2 stops17h 46m
Boise Air Term. Gowen Fld
Sat 7/2
09:02-10:50
2 stops18h 48m
£490
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Tue 10/3
06:35-21:29
2 stops20h 54m
Boise Air Term. Gowen Fld
Tue 31/3
14:40-17:05
2 stops19h 25m
£552
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Tue 17/3
07:40-21:29
2 stops19h 49m
Boise Air Term. Gowen Fld
Tue 31/3
10:35-12:20
1 stop18h 45m
£559
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Wed 18/3
11:10-21:29
2 stops40h 19m
Boise Air Term. Gowen Fld
Tue 19/5
08:20-11:10
1 stop19h 50m
£572
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Tue 17/3
13:35-22:56
1 stop15h 21m
Boise Air Term. Gowen Fld
Tue 31/3
10:35-09:40
1 stop16h 05m
£583
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Tue 10/3
11:35-21:29
1 stop15h 54m
Boise Air Term. Gowen Fld
Tue 31/3
14:40-12:20
1 stop14h 40m
£583
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Fri 27/2
11:10-23:48
2 stops19h 38m
Boise Air Term. Gowen Fld
Mon 9/3
10:21-09:40
1 stop17h 19m
£588
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Fri 20/2
06:35-10:12
2 stops34h 37m
Boise Air Term. Gowen Fld
Mon 2/3
10:53-07:25
1 stop13h 32m
£588
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Thu 22/1
06:35-18:07
2 stops18h 32m
Boise Air Term. Gowen Fld
Mon 26/1
14:37-09:40
1 stop12h 03m
£588
LondonBoise
LGW - BOI
LGWBOI
London Gatwick
Thu 22/1
11:55-21:05
2 stops16h 10m
Boise Air Term. Gowen Fld
Mon 26/1
11:35-10:55
2 stops16h 20m
£787
Flights are sorted by cheapest return flights first.
Deals found on 17/12
Showing 1-10 of 21 results
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Best time to book a flight from London to Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from London 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 London to Boise
How far ahead should I book a flight from London to Boise?
Use this chart to determine the optimal time to book a return flight from London to Boise. Price data was last updated on 12 December 2025.
To ensure you get the cheapest price possible for a flight from London to Boise, you should look to book at least 16 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from London to Boise?
Currently, March is the cheapest month in which you can book a flight from London to Boise (average of £512). Flying from London to Boise in February is currently the most expensive (average of £714). 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 LON to BOI?
Find hourly flight availability from London 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 19 December 2025.
It’s typically best to fly out from London to Boise at midday. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.
What’s the top stopover airport for flights from London to Boise?
Share of one-stop return flights from London to Boise chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Denver (DEN) – chosen by Cheapflights users on 49% of one-stop itineraries from London to Boise on Cheapflights.
What’s the cheapest stopover airport for flights from London to Boise?
Average return fare for one-stop flights from London to Boise, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Salt Lake City (SLC) is the most affordable one-stop option, with an average return flight price of £629.
What’s the fastest stopover option from London to Boise?
Shortest average travel time for one-stop one-way flights from London to Boise, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Salt Lake City (SLC) have the shortest average one-way travel time for one-stop routes: 12h 57m.
Which airport typically offers the quickest stopover for flights from London to Boise?
Average stopover duration for one-stop one-way flights from London to Boise, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average stopover time of 1h 27m.
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 19 December 2025.
See what other customers who have flown with KLM, Virgin Atlantic, andUnited Airlines from London 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.
Not literally sitting in the very last row in the middle
Related info for your journey
Find useful and relevant information for your journey from London 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 London?
Located just 3.3 mi from the city center, Boise Air Term. Gowen Fld is the airport most travelers will use when flying to Boise from London. Booking flights from London to Air Term. Gowen Fld (BOI) should be relatively easy as there are 0 daily inbound flights from London from 3 different airlines.
How long is the flight from London to Boise?
Departing from London to Boise will take you 16h 10m. London and Boise are separated by a distance of 4853 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London to Boise round-trip?
According to our current data, Lufthansa (£537), United Airlines (£540), and Virgin Atlantic (£602) offers the cheapest pricing from London to Boise. Lufthansa is priced at 26% lower than the current average price of a flight leaving 3 months from now.
What are the most popular routes from London to Boise?
The most popular flight routes from London to Boise are London Heathrow - Boise Air Term. Gowen Fld, London Gatwick - Boise Air Term. Gowen Fld and London City - Boise Air Term. Gowen Fld.
Can I find deals for flights from London to Boise that include hotel bookings?
Yes. In addition to deals on London to Boise flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Boise?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Boise.
Can I find deals for business class flights from London to Boise?
Yes. Cheapflights offers flight deals from London 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 London to Boise?
Currently, March is the cheapest month in which you can book a flight from London to Boise (average of £512). Flying from London to Boise in February is currently the most expensive (average of £714). 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.
Discover the top 3 airlines that operate flights from London 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 19 December 2025.
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 London to Boise?
Deals for London to Boise flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from London to Boise?
Cheapflights helps you find that perfect flight to Boise from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from London to Boise with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Boise flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from London to Boise become cheaper?
Yes, Cheapflights offers price alerts on London to Boise flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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