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.
LON — BOI
7 Dec — 14 Dec1
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
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 7 November 2025.
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 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 6/11£716
Thu 11/1211:55LGW - BOI
2 stops18h 15mMultiple Airlines
Fri 9/109:02BOI - LGW
2 stops18h 53mMultiple Airlines
Deal found 5/11£719
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
Mon 10/1111:55LGW - BOI
2 stops17h 25mIcelandair
Mon 15/1212:19BOI - LGW
2 stops15h 36mIcelandair
Deal found 5/11£1,246
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 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 20/409:15LCY - BOI
2 stops19h 21mLufthansa
Mon 27/412:00BOI - LCY
2 stops47h 35mLufthansa
Deal found 7/11£615
Mon 20/415:40LGW - BOI
2 stops37h 41mIcelandair
Mon 27/417:30BOI - LGW
2 stops38h 10mIcelandair
Deal found 6/11£632
Mon 8/1211:55LGW - BOI
2 stops18h 01mMultiple Airlines
Tue 16/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 6/11£670
Thu 8/111:20LGW - BOI
2 stops32h 48mAmerican Airlines
Thu 22/107:20BOI - LGW
2 stops17h 10mAmerican Airlines
Deal found 6/11£745
Mon 8/1208:40LCY - BOI
2 stops22h 29mVirgin Atlantic
Mon 15/1205:35BOI - LCY
2 stops28h 00mVirgin Atlantic
Deal found 6/11£806
Mon 8/1207:30LHR - BOI
2 stops19h 13mUnited Airlines
Mon 15/1206:20BOI - LHR
2 stops17h 20mUnited Airlines
Deal found 6/11£552
Mon 9/206:30LHR - BOI
2 stops20h 21mUnited Airlines
Wed 18/210:53BOI - LHR
1 stop13h 32mUnited Airlines
Deal found 6/11£558
Mon 9/206:30LHR - BOI
2 stops20h 21mUnited Airlines
Tue 17/214:40BOI - LHR
1 stop12h 00mUnited Airlines
Deal found 6/11£558
Mon 9/209:50LCY - BOI
2 stops32h 35mMultiple Airlines
Mon 16/210:53BOI - LCY
2 stops23h 47mMultiple Airlines
Deal found 6/11£677
Fri 10/415:40LGW - BOI
2 stops37h 41mIcelandair
Wed 15/416:30BOI - LGW
2 stops15h 10mIcelandair
Deal found 5/11£693
Mon 9/206:30LHR - BOI
2 stops20h 21mUnited Airlines
Thu 19/212:16BOI - LHR
1 stop12h 39mUnited Airlines
Deal found 6/11£558
Mon 8/1211:55LGW - BOI
2 stops18h 01mMultiple Airlines
Mon 15/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 6/11£716
Fri 6/311:55LGW - BOI
2 stops17h 25mIcelandair
Fri 13/313:30BOI - LGW
2 stops15h 25mIcelandair
Deal found 5/11£721
Mon 9/206:30LHR - BOI
2 stops20h 21mUnited Airlines
Sun 15/212:16BOI - LHR
1 stop34h 39mUnited Airlines
Deal found 5/11£567
Thu 11/1211:55LGW - BOI
2 stops18h 15mMultiple Airlines
Fri 9/109:02BOI - LGW
2 stops18h 53mMultiple Airlines
Deal found 5/11£719
Mon 8/1207:45LCY - BOI
2 stops23h 24mVirgin Atlantic
Tue 16/1211:44BOI - LCY
2 stops21h 51mVirgin Atlantic
Deal found 7/11£979
Fri 9/111:55LGW - BOI
2 stops16h 10mIcelandair
Fri 16/111:35BOI - LGW
2 stops16h 20mIcelandair
Deal found 5/11£853
Mon 8/1209:50LCY - BOI
2 stops32h 44mMultiple Airlines
Mon 15/1208:15BOI - LCY
2 stops21h 40mMultiple Airlines
Deal found 6/11£826
Last-minute flights from London to Boise
Discover last-minute flight deals from London to Boise. Data last updated 7 November 2025 and is based on user searches.
Mon 10/1111:55LGW - BOI
2 stops17h 25mIcelandair
Mon 15/1212:19BOI - LGW
2 stops15h 36mIcelandair
Deal found 5/11£1,246
Mon 8/1206:30LHR - BOI
2 stops20h 13mUnited Airlines
Mon 15/1210:40BOI - LHR
1 stop16h 00mUnited Airlines
Deal found 6/11£552
Mon 8/1211:35LHR - BOI
1 stop13h 32mLufthansa
Mon 15/1214:49BOI - LHR
1 stop11h 51mLufthansa
Deal found 6/11£562
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
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
Tue 9/1206:35LHR - BOI
2 stops34h 24mUnited Airlines
Mon 15/1212:16BOI - LHR
2 stops15h 49mUnited Airlines
Deal found 6/11£550
Tue 9/1206:35LHR - BOI
2 stops18h 32mUnited Airlines
Sun 14/1217:25BOI - LHR
1 stop33h 15mUnited Airlines
Deal found 6/11£558
Tue 9/1206:35LHR - BOI
2 stops18h 32mLufthansa
Sun 14/1214:49BOI - LHR
2 stops37h 01mLufthansa
Deal found 7/11£571
Thu 11/1211:55LGW - BOI
2 stops18h 15mMultiple Airlines
Fri 9/109:02BOI - LGW
2 stops18h 53mMultiple Airlines
Deal found 5/11£719
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 7 November 2025.
Wed 12/1116:20LHR - BOI
3 stops53h 52mMultiple Airlines
Deal found 5/11£682
Wed 12/1111:40LHR - BOI
2 stops31h 55mAmerican Airlines
Deal found 5/11£712
Wed 12/1111:05LHR - BOI
1 stop20h 04mDelta
Deal found 5/11£735
Thu 18/1220:35LHR - BOI
2 stops31h 35mIcelandair
Deal found 5/11£851
Thu 18/1211:35LHR - BOI
1 stop16h 56mLufthansa
Deal found 5/11£946
Thu 18/1213:45LHR - BOI
1 stop14h 45mAir New Zealand
Deal found 7/11£947
Sun 21/1220:45LHR - BOI
2 stops33h 52mMultiple Airlines
Deal found 6/11£968
Sun 21/1210:05LHR - BOI
1 stop16h 08mAir New Zealand
Deal found 6/11£1,000
Sun 21/1218:05LCY - BOI
2 stops36h 32mMultiple Airlines
Deal found 6/11£1,052
Sun 21/1211:55LGW - BOI
2 stops16h 15mIcelandair
Deal found 6/11£1,646
Thu 18/1207:05LHR - BOI
3 stops22h 00mScandinavian Airlines
Deal found 6/11£2,122
Cheapflights Fare Finder
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 7 November 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
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
£632
LondonBoise
LGW - BOI
LGWBOI
London Gatwick
Mon 8/12
11:55-22:56
2 stops18h 01m
Boise Air Term. Gowen Fld
Tue 16/12
11:45-10:55
2 stops16h 10m
£670
LondonBoise
LCY - BOI
LCYBOI
London City
Mon 9/2
09:50-11:25
2 stops32h 35m
Boise Air Term. Gowen Fld
Mon 16/2
10:53-17:40
2 stops23h 47m
£677
Flights are sorted by cheapest return flights first.
Deals found on 5/11
Showing 1-10 of 30 results
1
2
3
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 31 October 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, May is the cheapest month in which you can book a flight from London to Boise (average of £552). Flying from London to Boise in July is currently the most expensive (average of £691). 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 7 November 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.
How much does it cost for a return flight from London to Boise?
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 £643.
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: 13h 00m.
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 7 November 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.
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.
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.
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.
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.
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.
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 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 4 different airlines.
How long is the flight from London to Boise?
Departing from London to Boise will take you 19h 21m. London and Boise are separated by a distance of 4843 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, Finnair (£530), United Airlines (£554), and Lufthansa (£556) offers the cheapest pricing from London to Boise. Finnair is priced at 26% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from London 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 London to Boise for a low price.
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, May is the cheapest month in which you can book a flight from London to Boise (average of £552). Flying from London to Boise in July is currently the most expensive (average of £691). 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 4 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 7 November 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.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.