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Cheap flights from London to Boise from £390

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Boise departing on 15/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:15 - 23:01
LHR
-
BOI
17h 46m2 stops
Multiple Airlines Logo
09:02 - 10:50
BOI
-
LHR
18h 48m2 stops
£490Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Lufthansa Logo
06:35 - 21:29
LHR
-
BOI
20h 54m2 stops
Lufthansa Logo
14:40 - 17:05
BOI
-
LHR
19h 25m2 stops
£553Lufthansa
Tue, 10 Mar - Tue, 31 Mar
Lufthansa Logo
07:40 - 21:29
LHR
-
BOI
19h 49m2 stops
Lufthansa Logo
10:35 - 09:40
BOI
-
LHR
16h 05m1 stop
£559Lufthansa
Tue, 10 Mar - Tue, 31 Mar
Multiple Airlines Logo
14:55 - 23:01
LHR
-
BOI
15h 06m1 stop
Multiple Airlines Logo
13:55 - 12:20
BOI
-
LHR
15h 25m1 stop
£568Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
United Airlines Logo
09:00 - 22:35
LHR
-
BOI
20h 35m2 stops
United Airlines Logo
07:11 - 10:10
BOI
-
LHR
19h 59m1 stop
£570United Airlines
Mon, 20 Apr - Mon, 27 Apr
United Airlines Logo
09:00 - 22:35
LHR
-
BOI
20h 35m2 stops
United Airlines Logo
14:40 - 09:40
BOI
-
LHR
12h 00m1 stop
£571United Airlines
Mon, 20 Apr - Mon, 27 Apr
Icelandair Logo
15:40 - 22:21
LGW
-
BOI
37h 41m2 stops
Icelandair Logo
17:30 - 14:40
BOI
-
LGW
38h 10m2 stops
£639Icelandair
Mon, 20 Apr - Mon, 27 Apr
Icelandair Logo
15:40 - 22:21
LGW
-
BOI
37h 41m2 stops
Icelandair Logo
17:30 - 14:40
BOI
-
LGW
38h 10m2 stops
£641Icelandair
Mon, 20 Apr - Mon, 27 Apr
Iberia Logo
19:40 - 13:08
LGW
-
BOI
24h 28m2 stops
Iberia Logo
07:20 - 19:00
BOI
-
LGW
28h 40m2 stops
£705Iberia
Fri, 30 Jan - Fri, 6 Feb
Delta Logo
08:40 - 20:55
LCY
-
BOI
19h 15m2 stops
Delta Logo
05:20 - 08:10
BOI
-
LCY
19h 50m2 stops
£5,131Delta
Fri, 30 Jan - Fri, 6 Feb

United Airlines flights from London to Boise

Our best United Airlines deals on London to Boise flight tickets
United Airlines
20 Apr
LHR09:00London Heathrow
20h 35m
2 stops
BOI22:35Boise Air Term. Gowen Fld
27 Apr
BOI07:11Boise Air Term. Gowen Fld
19h 59m
1 stop
LHR10:10London Heathrow
£570
Find similar
United Airlines
20 Apr
LHR09:00London Heathrow
20h 35m
2 stops
BOI22:35Boise Air Term. Gowen Fld
27 Apr
BOI14:40Boise Air Term. Gowen Fld
12h 00m
1 stop
LHR09:40London Heathrow
£571
Find similar
United Airlines
18 Mar
LHR11:10London Heathrow
40h 19m
2 stops
BOI21:29Boise Air Term. Gowen Fld
19 May
BOI08:20Boise Air Term. Gowen Fld
19h 50m
1 stop
LHR11:10London Heathrow
£572
Find similar

Scandinavian Airlines flights from London to Boise

Our best Scandinavian Airlines deals on London to Boise flight tickets
Scandinavian Airlines
20 Apr
LHR18:40London Heathrow
35h 24m
2 stops
BOI23:04Boise Air Term. Gowen Fld
27 Apr
BOI13:00Boise Air Term. Gowen Fld
44h 00m
2 stops
LHR16:00London Heathrow
£602
Find similar
Scandinavian Airlines
20 Apr
LHR10:20London Heathrow
19h 44m
2 stops
BOI23:04Boise Air Term. Gowen Fld
27 Apr
BOI13:00Boise Air Term. Gowen Fld
22h 30m
2 stops
LHR18:30London Heathrow
£603
Find similar
Scandinavian Airlines
20 Apr
LHR10:20London Heathrow
19h 44m
2 stops
BOI23:04Boise Air Term. Gowen Fld
27 Apr
BOI13:00Boise Air Term. Gowen Fld
25h 35m
3 stops
LHR21:35London Heathrow
£641
Find similar

momondo 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, momondo users made 279,928 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from London to Boise that are best for you.

Fly from

Fly to

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

£553

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 10/3

07:40-21:29

2 stops19h 49m

Boise Air Term. Gowen Fld

Tue 31/3

10:35-09:40

1 stop16h 05m

£559

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 31/1

14:55-23:01

1 stop15h 06m

Boise Air Term. Gowen Fld

Sat 7/2

13:55-12:20

1 stop15h 25m

£568

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 20/4

09:00-22:35

2 stops20h 35m

Boise Air Term. Gowen Fld

Mon 27/4

07:11-10:10

1 stop19h 59m

£570

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 20/4

09:00-22:35

2 stops20h 35m

Boise Air Term. Gowen Fld

Mon 27/4

14:40-09:40

1 stop12h 00m

£571

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

£639

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

£641

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Fri 30/1

19:40-13:08

2 stops24h 28m

Boise Air Term. Gowen Fld

Fri 6/2

07:20-19:00

2 stops28h 40m

£705

LondonBoise

LCY - BOI

LCYBOI

London City

Fri 30/1

08:40-20:55

2 stops19h 15m

Boise Air Term. Gowen Fld

Fri 6/2

05:20-08:10

2 stops19h 50m

£5,131

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Boise from

How to get the cheapest flight ticket from London to Boise

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Boise?

The month of September is, on average, the cheapest month to fly to Boise from London, with most prices found around £591. If you aren’t able to travel during the month of September, then book flights to Boise from London during February instead. Flights to Boise in February, while not as cheap as those in September, still average around £600.

What is the cheapest day to depart on your flight to Boise?

The cheapest day to depart from London to Boise is on a Tuesday. Travellers who choose to depart for Boise on a Tuesday will often find tickets for as low as £634. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Boise on Monday is £778.

What is the cheapest time of day to depart on your flight to Boise?

The cheapest time of day to fly to Boise is at midday when flights can be purchased for as low as £662. Flights to Boise are more costly in the evening, with an average ticket price of £863. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Boise?

You are more likely to see cheaper flights to Boise from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Boise for around £752 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from London for as low as £573 on momondo.

When to book flights from London to Boise

Are you open to changing your travel dates? Check out the ideal times to fly from London to Boise according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Boise (LON to BOI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Boise

Fastest flight time

14h 38m

Direct flights

None
The fastest flight from London to Boise takes 14h 38m
There are no direct flights from London to Boise. There are no popular flight routes from London to Boise.
Search flight deals

  • How far is London to Boise Air Term. Gowen Fld by plane?

    Boise Air Term. Gowen Fld is 4834.5 mi away from London. A reasonable flight in good conditions will take 14h 38m.

  • When did momondo last update prices for flights from London to Boise Air Term. Gowen Fld Airport?

    Prices for flights from London to Boise Air Term. Gowen Fld Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to Boise Air Term. Gowen Fld Airport?

  • How old do you have to be to fly from London to Boise Air Term. Gowen Fld Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Boise Air Term. Gowen Fld Airport.

  • What documentation or ID do you need to fly to Boise Air Term. Gowen Fld Airport?

    The travel and health documents required for your trip to Boise Air Term. Gowen Fld Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Boise Air Term. Gowen Fld Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from London to Boise?

Best airlines flying from London to Boise

Compare and see reviews for airlines that fly from London to Boise with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom £537Free CancellationRating
6.8
7,634 reviews
Search Lufthansa flights
United AirlinesPriceFrom £540Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £602Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights

Travelling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Caldwell

Why use momondo?

Why should I use momondo to find a flight deal from London to Boise?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Boise from London.

Can I find flights from London to Boise with flexible booking policies on momondo?

All flight searches from London to Boise on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Boise?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Boise from London.

I’m not ready to book a flight from London to Boise right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Boise now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Boise and let you know when they change.

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