Find flights
When to book
Airlines
FAQs

Cheap flights from the United Kingdom to Boise from £375

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
16 Mar — 23 Mar1
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 14 February 2026.

Wed 2/908:40
LHR
-
BOI
2 stops19h 35m
United Airlines
Wed 30/917:22
BOI
-
LHR
1 stop33h 18m
United Airlines
Deal found 12/2£567
Wed 2/909:30
LHR
-
BOI
2 stops19h 52m
United Airlines
Mon 28/905:00
BOI
-
LHR
1 stop21h 40m
United Airlines
Deal found 12/2£572
Mon 20/416:00
LHR
-
BOI
2 stops24h 54m
Lufthansa
Mon 27/419:03
BOI
-
LHR
2 stops28h 42m
Lufthansa
Deal found 13/2£586
Thu 12/309:30
LHR
-
BOI
2 stops17h 43m
United Airlines
Thu 19/310:49
BOI
-
LHR
1 stop14h 36m
United Airlines
Deal found 11/2£590
Thu 17/906:30
LHR
-
BOI
2 stops18h 25m
Lufthansa
Tue 29/914:43
BOI
-
LHR
1 stop14h 37m
Lufthansa
Deal found 12/2£591
Tue 1/913:05
LHR
-
BOI
1 stop16h 17m
United Airlines
Tue 29/914:43
BOI
-
LHR
1 stop11h 57m
United Airlines
Deal found 12/2£594
Thu 17/908:45
LHR
-
BOI
2 stops19h 30m
United Airlines
Tue 29/905:00
BOI
-
LHR
1 stop21h 40m
United Airlines
Deal found 13/2£596
Thu 17/908:40
LHR
-
BOI
2 stops22h 19m
United Airlines
Wed 30/910:39
BOI
-
LHR
1 stop16h 01m
United Airlines
Deal found 10/2£597
Wed 2/909:30
LHR
-
BOI
2 stops19h 52m
United Airlines
Sat 3/1014:43
BOI
-
LHR
1 stop11h 57m
United Airlines
Deal found 12/2£602
Mon 4/505:55
BHX
-
BOI
2 stops47h 50m
United Airlines
Mon 18/506:23
BOI
-
BHX
2 stops28h 02m
United Airlines
Deal found 12/2£682
Mon 20/415:40
LGW
-
BOI
2 stops38h 17m
Multiple Airlines
Mon 27/416:27
BOI
-
LGW
2 stops39h 13m
Multiple Airlines
Deal found 12/2£688
Wed 4/1106:00
BHX
-
BOI
2 stops41h 49m
United Airlines
Sun 8/1114:43
BOI
-
BHX
2 stops38h 52m
United Airlines
Deal found 12/2£688

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 14 February 2026.

Round-trip from

£586

One-way from

£375

Popular in

December

Cheapest in

January

Average price

£590
Lufthansa
  • Lufthansa
  • 20/4-27/4
  • 3 total stops
  • 43h 38m total
  • United Kingdom to Boise
Search Deals
7/3
  • 7/3
  • 2 total stops
  • 55h 55m total
  • United Kingdom to Boise
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 14 February 2026.
Use the filters below to find and compare flights from the United Kingdom to Boise that are best for you.

Fly from

United Kingdom

Fly to

Boise

Route

Depart

Return

Price

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 20/4

16:00-09:54

2 stops24h 54m

Boise Air Term. Gowen Fld

Mon 27/4

19:03-06:45

2 stops28h 42m

£586

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 12/3

09:30-21:13

2 stops17h 43m

Boise Air Term. Gowen Fld

Thu 19/3

10:49-07:25

1 stop14h 36m

£590

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 5/5

10:35-21:17

1 stop17h 42m

Boise Air Term. Gowen Fld

Wed 20/5

08:22-07:25

1 stop16h 03m

£594

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 5/5

14:50-21:17

1 stop13h 27m

Boise Air Term. Gowen Fld

Tue 19/5

16:20-14:10

1 stop14h 50m

£594

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 5/5

14:10-22:45

1 stop15h 35m

Boise Air Term. Gowen Fld

Thu 21/5

06:35-07:25

1 stop17h 50m

£594

BirminghamBoise

BHX - BOI

BHXBOI

Birmingham

Tue 5/5

05:55-09:54

2 stops34h 59m

Boise Air Term. Gowen Fld

Tue 19/5

08:20-17:35

2 stops26h 15m

£682

BirminghamBoise

BHX - BOI

BHXBOI

Birmingham

Tue 5/5

05:55-09:54

2 stops34h 59m

Boise Air Term. Gowen Fld

Mon 18/5

06:23-17:25

2 stops28h 02m

£682

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 20/4

15:40-22:57

2 stops38h 17m

Boise Air Term. Gowen Fld

Mon 27/4

16:27-14:40

2 stops39h 13m

£688

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Sun 3/5

13:00-23:02

2 stops41h 02m

Boise Air Term. Gowen Fld

Mon 18/5

16:19-14:40

2 stops39h 21m

£695

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Sun 3/5

13:00-23:02

2 stops41h 02m

Boise Air Term. Gowen Fld

Tue 19/5

16:19-14:40

2 stops39h 21m

£695

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 48 results
1
2
3
...
5

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, March is the cheapest month in which you can book a flight from United Kingdom to Boise (average of £501). Flying from United Kingdom to Boise in July is currently the most expensive (average of £659). 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.

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 14 February 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
7.7
Good
1,454 reviews
Check prices

Crew

8.4

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,454 reviews
KLM
7.7
Good
1,454 reviews
Check prices

Crew

8.4

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,454 reviews
Check prices

Crew

8.4

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,289 reviews
KLM
7.7
Good
1,454 reviews
Check prices

Crew

8.4

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Icelandair
7.1
Good
614 reviews
KLM
7.7
Good
1,454 reviews
Check prices

Crew

8.4

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,784 reviews
KLM
7.7
Good
1,454 reviews
Check prices

Crew

8.4

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 24h 54m. Fly via Lufthansa, United Airlines, or Icelandair 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, March is the cheapest month in which you can book a flight from United Kingdom to Boise (average of £501). Flying from United Kingdom to Boise in July is currently the most expensive (average of £659). 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 14 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£462Average£702FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£527Average£666FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£591Average£773FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£593Average£921FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£639Average£720FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£646Average£830FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£690Average£796FlexibilityNo cancel feeOn-time75%
Search KLM 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.

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.