LON - BOI

£423 Find Cheap Flights from London to Boise – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Boise departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Boise, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£623
Typical prices: £600-£551
United Airlines
Wed 4/11Sun 8/11
LHR - BOI • 2 stops
Cheapest one-way flight
£423
Multiple Airlines
Mon 5/10
LGW - BOI • 2 stops
Top airlines
Cheapest • from £623 (return)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between London and Boise. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £597 (return)
Shortest trip • 13h 16m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 10% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Boise (LON-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Boise that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Boise

Wed, 4 Nov - Sun, 8 Nov
United Airlines Logo
07:40 - 23:59
LHR
-
BOI
23h 19m
2 stops
United Airlines Logo
10:39 - 07:30
BOI
-
LHR
37h 51m
2 stops
£623United Airlines
Wed, 4 Nov - Sun, 8 Nov
United Airlines Logo
07:40 - 23:59
LHR
-
BOI
23h 19m
2 stops
United Airlines Logo
17:22 - 09:40
BOI
-
LHR
33h 18m
1 stop
£625United Airlines
Sun, 20 Sep - Wed, 7 Oct
United Airlines Logo
16:40 - 11:04
LHR
-
BOI
25h 24m
2 stops
United Airlines Logo
06:25 - 06:55
BOI
-
LHR
17h 30m
2 stops
£654United Airlines
Wed, 4 Nov - Wed, 11 Nov
Lufthansa Logo
09:50 - 21:16
LCY
-
BOI
18h 26m
2 stops
Lufthansa Logo
14:43 - 17:40
BOI
-
LCY
19h 57m
2 stops
£733Lufthansa
Mon, 21 Sep - Mon, 5 Oct
Multiple Airlines Logo
10:20 - 22:38
LGW
-
BOI
19h 18m
2 stops
Multiple Airlines Logo
14:08 - 18:50
BOI
-
LGW
21h 42m
2 stops
£768Multiple Airlines
Wed, 11 Nov - Sat, 14 Nov
Multiple Airlines Logo
11:55 - 22:25
LGW
-
BOI
17h 30m
2 stops
Multiple Airlines Logo
12:49 - 10:55
BOI
-
LGW
15h 06m
2 stops
£811Multiple Airlines
Mon, 21 Sep - Mon, 5 Oct
Lufthansa Logo
09:15 - 21:37
LCY
-
BOI
19h 22m
2 stops
Lufthansa Logo
14:44 - 17:55
BOI
-
LCY
20h 11m
2 stops
£821Lufthansa
Tue, 14 Jul - Tue, 28 Jul
American Airlines Logo
10:30 - 11:19
LGW
-
BOI
31h 49m
2 stops
American Airlines Logo
06:21 - 08:40
BOI
-
LGW
19h 19m
2 stops
£875American Airlines
Tue, 14 Jul - Thu, 30 Jul
Delta Logo
10:35 - 23:51
LGW
-
BOI
20h 16m
2 stops
Delta Logo
06:51 - 16:00
BOI
-
LGW
26h 09m
2 stops
£894Delta
Mon, 13 Jul - Thu, 30 Jul
Delta Logo
10:25 - 09:29
LGW
-
BOI
54h 04m
2 stops
Delta Logo
08:42 - 09:25
BOI
-
LGW
17h 43m
2 stops
£903Delta
Booking Insights

KAYAK’s insights & trends for London to Boise flights

Get data-powered insights and trends into flights from London to Boise to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London to Boise?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Boise departing in November.

What is the cheapest month to fly from London to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Boise, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Boise is January, where tickets cost £502 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £659 and £591 respectively.

Good to know - Cheap tickets from London to Boise

Low seasonJanuary
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (6% more expensive on average)

When to book flights from London to Boise

Are your dates flexible? Find out the best times to travel from London to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Boise

  • What is the cheapest flight from London to Boise?

    In the last 3 days, the lowest price for a flight from London to Boise was £423 for a one-way ticket and £623 for a return.

  • Which airports will I be using when flying from London to Boise?

    On your way to Boise, you’ll fly out from one of these London airports: London City or London Heathrow. You’ll be landing at Boise Air Term. Gowen Fld.

  • Which aircraft models fly most regularly from London to Boise?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Boise?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between London and Boise, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from London to Boise, Virgin Atlantic or United Airlines?

    The two airlines most popular with KAYAK users for flights from London to Boise are Virgin Atlantic and United Airlines. With an average price for the route of £800 and an overall rating of 7.5, Virgin Atlantic is the most popular choice. United Airlines is also a great choice for the route, with an average price of £735 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from London to Boise?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Boise.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Boise?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Boise?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Boise with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Boise?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boise from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines flying from London to Boise

 
See real verified KAYAK customer reviews for airlines flying from London to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Boise? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Virgin AtlanticOverall score based on 690 reviews
8.1Crew
7.5Entertainment
7.7Boarding
7.3Comfort
6.9Food
Airline reviews

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

10.0 ExcellentLye Sim, Jun 2026
LHR - JFK
Read more Virgin Atlantic reviews

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

I missed my flight and had to buy new tickets Rome- Boston

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

I flew from Barcelona to Chicago on UA yesterday. The flight was on time, the pilots did a great job and the flight attendants were super nice. All of them. Also food was good, and the drinks, including wine were served a few times during our flight. I highly recommend this airline.

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

Repurchased food and it was moldy and expensive. But I figured it was bad luck so I purchased a cup-o-noodles, halfway through them we hit turbulence and the flight attendant was passing with the garbage, it would have been two seconds to grab it, but he was snarky grabbed someone else’s plastic cups and went to buckle up… I used the puke bags to secure the soup before it became an accessory. When he finally came around he gave me a face like a petulant child as I handed him the soup neatly wrapped in the paper then plastic bag. I watched a movie in silence as the rental or headphones was ridiculous at 4€ for those .10€ cheap plastic toys. No English subtitles on an American movie… crazy. I disliked the whinny little tourist trap and now I hope that it sinks into the ocean or erupts in a catastrophic eruption for their beloved “I live on an active volcano” pride.

At least one soda free, felt like I was nickeled to death.

Pleasant, attentive flight attendants, but they’ve got to upgrade their seats to be a true “business class” carrier.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

The food on this flight was better than what we had getting to Rome. The flight was comfortable and the staff was great. One of the staff members was a stickler about the blankets in the aisle, which I get, but still. Overall, great flight and will fly with them again!

Our screen kept turning off ...3 times...had to get crew attention to turn it on again

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

The flight attendants were wonderful - one man put my carry on in the bin for me. Very attentive service. Loved the blanket and pillow waiting for me in economy. Food was excellent which is a surprise given the reputation of any airline food. Wine was fine with the meals. Delighted with the new movies - flight went by very quickly. I would definitely fly Lufthansa again.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

Service was excellent. Flight was only about half full, which meant we had tons of room to stretch out. Boarding area was nice and well organized, flight attendants were super friendly and attentive and we loved the 3 snacks!

My flight was cancelled, but it was not Kayak's fault. Kayak did require me to pay for the ticket twice to two different venders who paid Lufthansa. Kayak/Lufthansa owes me for the first booking I made first was fraudulent on the part of the subcontracting ticket seller. There will be litigation over this issue under the current passenger protection laws.

flight was half full, plenty of empty seats, was able to lie down across 4 seats, food was good, arrived on time

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Everything you need to know for your flight from London to Boise

Information on your arrival and departure airports