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Boise

$545+ Cheap flights from the United Kingdom to Boise (BOI)

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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Cheap flight deals from United Kingdom to Boise

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 April 1, 2026.

This Globehunters deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:50 pm
LHR
-
BOI
1 stop13h 26m
Lufthansa
Wed 10/2112:29 pm
BOI
-
LHR
1 stop16h 26m
Lufthansa
Deal found 3/29$858
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:25 am
LHR
-
BOI
2 stops17h 30m
United Airlines
Wed 10/218:40 am
BOI
-
LHR
1 stop15h 05m
United Airlines
Deal found 3/30$876
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:25 am
LHR
-
BOI
2 stops17h 52m
United Airlines
Tue 5/198:02 am
BOI
-
LHR
1 stop19h 08m
United Airlines
Deal found 3/28$878
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:30 am
LHR
-
BOI
2 stops18h 46m
United Airlines
Thu 10/2210:39 am
BOI
-
LHR
2 stops14h 51m
United Airlines
Deal found 3/30$908
This Air Canada deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:05 pm
LHR
-
BOI
2 stops25h 38m
Air Canada
Mon 10/194:05 pm
BOI
-
LHR
2 stops31h 25m
Air Canada
Deal found 3/30$911
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:30 am
LHR
-
BOI
2 stops19h 52m
United Airlines
Tue 9/297:00 am
BOI
-
LHR
2 stops15h 55m
United Airlines
Deal found 3/30$915
This Air Canada deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:40 pm
LHR
-
BOI
2 stops28h 16m
Air Canada
Tue 10/2011:45 am
BOI
-
LHR
2 stops18h 35m
Air Canada
Deal found 3/30$916
This Air Canada deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:40 pm
LHR
-
BOI
2 stops28h 16m
Air Canada
Sun 10/186:20 am
BOI
-
LHR
2 stops44h 40m
Air Canada
Deal found 3/30$919
This ChecknFly deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:00 pm
LGW
-
BOI
2 stops17h 02m
Icelandair
Tue 5/194:19 pm
BOI
-
LGW
2 stops15h 21m
Icelandair
Deal found 3/28$940
This Icelandair deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/153:40 pm
LGW
-
BOI
2 stops38h 17m
Icelandair
Tue 5/54:38 pm
BOI
-
LGW
2 stops15h 02m
Icelandair
Deal found 3/30$962
This Icelandair deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:40 pm
LGW
-
BOI
2 stops38h 22m
Icelandair
Tue 5/124:38 pm
BOI
-
LGW
2 stops15h 02m
Icelandair
Deal found 3/30$963
This FlightHub deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:20 am
LGW
-
BOI
2 stops19h 37m
Multiple Airlines
Mon 4/272:57 pm
BOI
-
LGW
2 stops20h 53m
Multiple Airlines
Deal found 3/29$969

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 April 1, 2026.

Round-trip from

$878
(United Airlines)

One-way from

$545
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$840
From United Kingdom to Boise Air Term. Gowen Fld
Search Deals
One-way flight from United Kingdom to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated April 1, 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 round-trip

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 5/12

6:55 am-6:17 pm

2 stops18h 22m

Boise Air Term. Gowen Fld

Tue 5/19

6:30 am-7:15 am

2 stops17h 45m

$878

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Tue 5/12

1:00 pm-11:02 pm

2 stops17h 02m

Boise Air Term. Gowen Fld

Tue 5/19

4:19 pm-2:40 pm

2 stops15h 21m

$940

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 4/20

10:20 am-10:57 pm

2 stops19h 37m

Boise Air Term. Gowen Fld

Mon 4/27

2:57 pm-6:50 pm

2 stops20h 53m

$969

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 5/12

2:50 pm-9:17 pm

1 stop13h 27m

Boise Air Term. Gowen Fld

Tue 6/2

5:46 pm-9:40 am

1 stop32h 54m

$986

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Thu 4/16

3:40 pm-10:57 pm

2 stops38h 17m

Boise Air Term. Gowen Fld

Tue 5/5

4:38 pm-2:40 pm

2 stops15h 02m

$1,011

EdinburghBoise

EDI - BOI

EDIBOI

Edinburgh Turnhouse

Mon 4/27

12:30 pm-11:06 am

2 stops29h 36m

Boise Air Term. Gowen Fld

Mon 5/4

4:20 pm-8:25 am

2 stops33h 05m

$1,011

EdinburghBoise

EDI - BOI

EDIBOI

Edinburgh Turnhouse

Tue 5/12

9:40 am-10:16 pm

2 stops19h 36m

Boise Air Term. Gowen Fld

Tue 5/19

6:30 am-8:25 am

2 stops42h 55m

$1,014

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Wed 4/15

3:40 pm-10:57 pm

2 stops38h 17m

Boise Air Term. Gowen Fld

Thu 5/7

4:38 pm-2:40 pm

2 stops15h 02m

$1,020

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Tue 4/21

3:40 pm-11:02 pm

2 stops38h 22m

Boise Air Term. Gowen Fld

Thu 5/7

4:38 pm-2:40 pm

2 stops15h 02m

$1,022

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 5/13

7:25 am-9:17 pm

2 stops20h 52m

Boise Air Term. Gowen Fld

Wed 5/20

12:30 pm-2:10 pm

1 stop18h 40m

$1,024

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 46 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 round-trip 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 $685). Flying from United Kingdom to Boise in February is currently the most expensive (average of $914). 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.

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?

    For a flight from United Kingdom to Boise, you will be flying into Air Term. Gowen Fld. Boise Air Term. Gowen Fld (BOI) is just 3.3 mi from the center of the city.

  • How long is the flight from United Kingdom to Boise?

    Airlines like United Airlines, Icelandair, and Lufthansa fly from United Kingdom to Boise in about 17h 02m. The time it takes to get you to your destination can typically vary by up to 4h 25m. There are 4853 mi between United Kingdom and Boise. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from United Kingdom to Boise?

    When deciding which route to take from United Kingdom to Boise consider Manchester - Boise Air Term. Gowen Fld, London Heathrow - Boise Air Term. Gowen Fld or London Gatwick - 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 vacation 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 $685). Flying from United Kingdom to Boise in February is currently the most expensive (average of $914). 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

Traveling to a place near Boise?

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