BOI - LHR

$334 Find Cheap Flights from Boise to London Heathrow Airport - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$724
Typical prices: $790-$1,135
Iberia
Sat 10/27Sat 11/3
BOI - LHR • 1 stop
Cheapest one-way
$334
Typical prices: $444-$630
Delta
Sat 3/10
BOI - LHR • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boise and London Heathrow Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
10 weeks
in advance
Our data shows that travelers who book at least 10 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 21% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
San Francisco (SFO)
Cheapest • Avg $708 (round-trip)
Portland (PDX)
Shortest trip • 12h 39m (one-way)
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Insights
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We hope you love your trip to London Heathrow Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to London (BOI-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to London

Tue, Oct 27 - Tue, Nov 3
Iberia Logo
7:00 am - 8:15 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
19h 15m1 stop Dallas/Fort Worth
Iberia Logo
6:05 am - 10:42 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
23h 37m2 stops Madrid Barajas Dallas/Fort Worth
$724Iberia
Mon, Feb 22 - Wed, Mar 3
Iberia Logo
7:00 am - 12:00 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
22h 00m1 stop Dallas/Fort Worth
Iberia Logo
7:35 am - 9:30 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
20h 55m2 stops Madrid Barajas Dallas/Fort Worth
$729Iberia
Tue, Oct 27 - Tue, Nov 3
Iberia Logo
7:00 am - 10:35 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
21h 35m2 stops Dallas/Fort Worth Madrid Barajas
Iberia Logo
7:30 am - 10:42 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
22h 12m2 stops Madrid Barajas Dallas/Fort Worth
$733Iberia
Wed, Oct 28 - Wed, Nov 4
United Airlines Logo
2:51 pm - 9:40 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
12h 49m1 stop Denver Intl
United Airlines Logo
1:00 pm - 11:31 amLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
29h 31m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$736United Airlines
Wed, Sep 30 - Wed, Oct 7
United Airlines Logo
5:00 am - 9:40 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
21h 40m1 stop Denver Intl
United Airlines Logo
7:25 am - 7:29 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
19h 04m2 stops Munich Franz Josef Strauss San Francisco
$743United Airlines
Tue, Sep 29 - Wed, Oct 7
United Airlines Logo
6:25 am - 12:25 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
23h 00m1 stop Denver Intl
United Airlines Logo
7:25 am - 7:29 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
19h 04m2 stops Munich Franz Josef Strauss San Francisco
$743United Airlines
Tue, Sep 29 - Wed, Oct 7
Delta Logo
3:28 pm - 11:20 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
12h 52m1 stop Seattle/Tacoma Intl
Delta Logo
6:30 am - 5:14 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
17h 44m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$749Delta
Wed, Oct 7 - Tue, Oct 13
Delta Logo
4:00 pm - 3:00 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
16h 00m1 stop Los Angeles Los Angeles
Delta Logo
6:30 am - 6:33 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
19h 03m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$749Delta
Wed, Oct 28 - Wed, Nov 4
Virgin Atlantic Logo
5:30 am - 6:50 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
19h 20m2 stops Minneapolis St Paul Boston Logan Intl
Virgin Atlantic Logo
6:20 am - 10:25 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
23h 05m2 stops Paris Charles de Gaulle Minneapolis St Paul
$754Virgin Atlantic
Tue, Oct 13 - Tue, Oct 20
Virgin Atlantic Logo
11:32 am - 11:00 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
16h 28m1 stop Salt Lake City
Virgin Atlantic Logo
2:30 pm - 11:04 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
15h 34m1 stop Los Angeles Los Angeles
$755Virgin Atlantic
Booking Insights

Price, demand and travel trends for Boise to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Boise to London Heathrow Airport with more confidence.

How much is a round-trip flight from Boise to London Heathrow Airport?

Round-trip flights from Boise to London Heathrow Airport start at $724. Prices are below average for this route right now, with typical round-trip fares ranging from $790 to $1,135. The lowest price found in the past 5 days was $724 on Iberia.

What's the cheapest day of the week to fly from Boise to London Heathrow Airport?

Tuesday is the cheapest day of the week to fly from Boise to London Heathrow Airport, it is 16% cheaper than the average day. Friday is the most expensive day with flight prices 7% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • November is the cheapest month to fly from Boise to London Heathrow Airport at $742 round-trip.
  • June ($1,423) and July ($1,171) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 91% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Boise to London Heathrow Airport the cheapest?

Flights from Boise to London Heathrow Airport are cheapest 10 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Boise to London Heathrow Airport flights

Low season

December

Cheapest flight

$334
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Boise to London Heathrow Airport

When to book flights from Boise to London

Are your dates flexible? Find out the best times to travel from Boise to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boise to London Heathrow Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Boise to London Heathrow Airport?

    Flights from Boise to London Heathrow Airport usually depart from Boise Air Term. Gowen Fld (BOI) and arrive at London Heathrow (LHR).

  • What cabin classes can I book on flights from Boise to London Heathrow Airport?

    Four cabin classes are available on flights from Boise to London Heathrow Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • Which airports do connecting flights from Boise to London Heathrow Airport pass through?

    One-stop flights from Boise to London Heathrow Airport most commonly connect through:

    • Seattle/Tacoma Intl (SEA) - 56% of one-stop connections
    • Denver Intl (DEN) - 34% of one-stop connections
    • Dallas/Fort Worth (DFW) - 3% of one-stop connections
    • Salt Lake City (SLC) - 3% of one-stop connections

    Seattle/Tacoma Intl (SEA) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Boise to London Heathrow Airport?

    Yes. Being flexible with your travel dates can save you up to 22% on the Boise to London Heathrow Airport route. Tuesday is the cheapest departure day at $792 round-trip on average, while Friday is the most expensive at $1,003, a difference of $211. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Paddington Station, Central London and London Victoria Station. These are among the most viewed places in London Heathrow Airport on KAYAK.

  • How expensive are last-minute Boise to London Heathrow Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 30% above the route average of $935. Book 10 weeks before departure for the lowest fares.

  • How long is a flight from Boise to London Heathrow Airport?

    A nonstop flight from Boise to London Heathrow Airport takes 0h 00m, covering 4,829 miles.

  • Do I need a passport to fly from Boise to London Heathrow Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Boise to London Heathrow Airport looking right now?

    One-way fares from Boise to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $363, which is 32% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Boise to London Heathrow Airport?

    Flying via Portland (PDX) gives the shortest average 1-stop total travel time at 12h 39m, compared with 12h 48m via Denver Intl (DEN) and 13h 37m via Salt Lake City (SLC).

  • What is the time difference between Boise and London Heathrow Airport?

    London Heathrow Airport is 7 hours ahead of Boise (British Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:
    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Hertz

  • How much should I expect to pay for a Boise to London Heathrow Airport flight?

    Round-trip flights from Boise to London Heathrow Airport range from $790 to $1,135, with an average of $935 over the past 12 months. Anything below $790 counts as a good deal.

Your guide to booking Boise to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Friday. On this route, Tuesday flights average $792 - about $211 less than Friday (21% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boise to London Heathrow Airport trip for November. Fares historically average $742 round-trip in that month - typically $681 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.
    - Hilton London Heathrow Airport

More options for your flight from Boise to London

Complete your trip to London with a hotel stay or car rental

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