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Cheap flights from the United Kingdom to Boise from £409

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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 11 June 2026.

Mon 22/613:00
LHR
-
BOI
1 stop17h 55m
United Airlines
Sun 28/617:46
BOI
-
LHR
1 stop11h 49m
United Airlines
Deal found 8/6£632
Sat 5/906:55
LHR
-
BOI
2 stops19h 29m
United Airlines
Mon 7/912:24
BOI
-
LHR
1 stop35h 21m
United Airlines
Deal found 7/6£688
Fri 4/911:25
LHR
-
BOI
1 stop13h 33m
Lufthansa
Mon 7/912:24
BOI
-
LHR
1 stop35h 21m
Lufthansa
Deal found 8/6£728
Wed 8/706:55
LHR
-
BOI
2 stops18h 01m
United Airlines
Wed 15/710:35
BOI
-
LHR
1 stop13h 50m
United Airlines
Deal found 10/6£778
Thu 10/909:40
EDI
-
BOI
2 stops20h 00m
United Airlines
Mon 14/906:30
BOI
-
EDI
2 stops18h 35m
United Airlines
Deal found 7/6£792
Thu 10/910:20
BHX
-
BOI
2 stops31h 44m
United Airlines
Mon 14/919:05
BOI
-
BHX
2 stops39h 30m
United Airlines
Deal found 7/6£799
Thu 9/710:20
LGW
-
BOI
2 stops20h 44m
Multiple Airlines
Wed 22/711:42
BOI
-
LGW
2 stops24h 03m
Multiple Airlines
Deal found 8/6£825
Tue 23/613:00
LGW
-
BOI
2 stops16h 24m
Multiple Airlines
Sat 4/718:10
BOI
-
LGW
2 stops37h 30m
Multiple Airlines
Deal found 11/6£844
Thu 17/911:30
EDI
-
BOI
1 stop18h 23m
United Airlines
Mon 21/912:28
BOI
-
EDI
1 stop12h 57m
United Airlines
Deal found 6/6£846
Thu 9/709:15
LCY
-
BOI
2 stops19h 14m
Lufthansa
Wed 22/714:41
BOI
-
LCY
2 stops20h 14m
Lufthansa
Deal found 8/6£873
Tue 14/710:30
LGW
-
BOI
2 stops31h 49m
American Airlines
Tue 28/706:21
BOI
-
LGW
2 stops19h 19m
American Airlines
Deal found 11/6£877
Tue 14/710:35
LGW
-
BOI
2 stops20h 16m
Delta
Mon 27/710:35
BOI
-
LGW
2 stops22h 25m
Delta
Deal found 11/6£896

Find 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 11 June 2026.

Round-trip from

£632

One-way from

£409

Popular in

December

Cheapest in

January

Average price

£806
United Airlines
  • United Airlines
  • 22/6-28/6
  • 2 total stops
  • 29h 44m total
  • United Kingdom to Boise
Search Deals
22/6
  • 22/6
  • 3 total stops
  • 48h 17m total
  • United Kingdom to Boise
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£41 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 11 June 2026.
Use the filters below to find and compare flights from the United Kingdom to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 5/9

06:55-17:58

2 stops18h 03m

Boise Air Term. Gowen Fld

Mon 7/9

17:44-09:40

1 stop32h 56m

£688
Fastest return journey

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 8/7

06:55-17:56

2 stops18h 01m

Boise Air Term. Gowen Fld

Wed 15/7

10:35-07:25

1 stop13h 50m

£778

EdinburghBoise

EDI - BOI

EDIBOI

Edinburgh Turnhouse

Thu 17/9

09:40-21:37

2 stops18h 57m

Boise Air Term. Gowen Fld

Mon 21/9

10:31-10:35

2 stops17h 04m

£792

EdinburghBoise

EDI - BOI

EDIBOI

Edinburgh Turnhouse

Thu 10/9

09:40-22:40

2 stops20h 00m

Boise Air Term. Gowen Fld

Mon 14/9

06:30-08:05

2 stops18h 35m

£792

BirminghamBoise

BHX - BOI

BHXBOI

Birmingham

Thu 10/9

10:20-11:04

2 stops31h 44m

Boise Air Term. Gowen Fld

Mon 14/9

19:05-17:35

2 stops39h 30m

£799

BirminghamBoise

BHX - BOI

BHXBOI

Birmingham

Thu 24/9

06:05-09:34

2 stops34h 29m

Boise Air Term. Gowen Fld

Mon 28/9

18:50-17:35

2 stops39h 45m

£799

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Thu 9/7

10:20-00:04

2 stops20h 44m

Boise Air Term. Gowen Fld

Wed 22/7

11:42-18:45

2 stops24h 03m

£825

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Tue 23/6

13:00-22:24

2 stops16h 24m

Boise Air Term. Gowen Fld

Sat 4/7

18:10-14:40

2 stops37h 30m

£869

LondonBoise

LCY - BOI

LCYBOI

London City

Thu 9/7

09:15-21:29

2 stops19h 14m

Boise Air Term. Gowen Fld

Wed 22/7

14:41-17:55

2 stops20h 14m

£873

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Thu 16/7

10:20-00:04

2 stops20h 44m

Boise Air Term. Gowen Fld

Tue 28/7

13:06-18:50

2 stops22h 44m

£900

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 56 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from United Kingdom to Boise (average of £503). Flying from United Kingdom to Boise in July is currently the most expensive (average of £660). 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.

How far ahead should I book a flight from United Kingdom to Boise?

The best time to book flights from United Kingdom to Boise is 75 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 11 June 2026.
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
7.8
Good
1,527 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,527 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Virgin Atlantic
7.5
Good
689 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
United Airlines
7.4
Good
9,809 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Icelandair
7.0
Good
673 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Lufthansa
6.8
Okay
8,058 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 18h 03m. Fly via United Airlines, Lufthansa, or Delta to get the fastest option. There are 4829 mi between United Kingdom and Boise. This flight may include one or multiple stops.

  • 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, January is the cheapest month in which you can book a flight from United Kingdom to Boise (average of £503). Flying from United Kingdom to Boise in July is currently the most expensive (average of £660). 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 7 airlines flying from United Kingdom to Boise

Discover the top 7 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 11 June 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£509Average£643FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£548Average£691FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£596Average£798FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£657Average£1,106FlexibilityNo cancel feeOn-time75%
Search KLM flights
IcelandairCheapest£702Average£715FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Alaska AirlinesCheapest£837Average£1,121FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest£1,040Average£1,167FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Fly with Cheapflights

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 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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