$572 Find Cheap Flights from London to Idaho - Compare and Save

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Cheap Flights from London to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Boise
Boise
13h 35m2 stops
from $835per person
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Book Cheap London to Idaho Plane Tickets

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

Recent round-trip flight deals from London to Idaho

Thu, Feb 25 - Mon, Mar 1
Scandinavian Airlines Logo
6:40 pm - 10:05 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
34h 25m2 stops Kastrup Copenhagen Los Angeles
Scandinavian Airlines Logo
4:00 pm - 9:40 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
22h 40m2 stops Los Angeles Kastrup Copenhagen
$835Scandinavian Airlines
Thu, Feb 25 - Mon, Mar 1
Scandinavian Airlines Logo
7:30 pm - 10:05 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
33h 35m2 stops Kastrup Copenhagen Los Angeles
Scandinavian Airlines Logo
4:00 pm - 4:00 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
41h 00m2 stops Los Angeles Kastrup Copenhagen
$843Scandinavian Airlines
Mon, Jan 11 - Fri, Jan 22
Alaska Airlines Logo
2:45 pm - 10:17 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
14h 32m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
12:48 pm - 12:20 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
16h 32m1 stop Seattle/Tacoma Intl
$869Alaska Airlines
Fri, Feb 26 - Tue, Mar 16
Scandinavian Airlines Logo
7:05 am - 10:05 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
22h 00m3 stops Oslo Gardermoen Kastrup Copenhagen Los Angeles
Scandinavian Airlines Logo
4:50 pm - 9:40 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
22h 50m2 stops Los Angeles Kastrup Copenhagen
$932Scandinavian Airlines
Tue, Apr 20 - Tue, Apr 27
Multiple Airlines Logo
6:55 am - 8:10 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
20h 15m2 stops Frankfurt am Main Seattle/Tacoma Intl
Multiple Airlines Logo
2:00 pm - 3:35 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
18h 35m2 stops Seattle/Tacoma Intl Frankfurt am Main
$933Multiple Airlines
Fri, Feb 26 - Tue, Mar 16
Scandinavian Airlines Logo
7:05 am - 10:05 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
22h 00m3 stops Oslo Gardermoen Kastrup Copenhagen Los Angeles
Scandinavian Airlines Logo
4:50 pm - 9:20 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
22h 30m3 stops Los Angeles Kastrup Copenhagen Stockholm Arlanda
$938Scandinavian Airlines
Wed, Mar 3 - Wed, Mar 10
Alaska Airlines Logo
2:45 pm - 10:13 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
14h 28m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
8:16 am - 12:20 pmBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
21h 04m1 stop Seattle/Tacoma Intl
$958Alaska Airlines
Mon, Jan 11 - Fri, Jan 22
Multiple Airlines Logo
8:35 pm - 11:10 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
33h 35m2 stops Reykjavik Keflavik Intl Denver Intl
Multiple Airlines Logo
8:20 am - 10:50 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
19h 30m2 stops Denver Intl Reykjavik Keflavik Intl
$960Multiple Airlines
Mon, Jan 25 - Tue, Feb 9
United Airlines Logo
4:20 pm - 11:16 amLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
25h 56m2 stops Washington, D.C. Dulles Intl San Francisco
United Airlines Logo
12:36 pm - 10:50 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
15h 14m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
$962United Airlines
Mon, Mar 1 - Tue, Mar 9
Air Canada Logo
1:25 pm - 9:56 pmLHR  London Heathrow-BOI Boise Air Term. Gowen Fld
39h 31m2 stops Calgary Denver Intl
Air Canada Logo
8:52 pm - 11:50 amBOI  Boise Air Term. Gowen Fld-LHR London Heathrow
31h 58m2 stops San Francisco Vancouver Intl
$966Air Canada
Booking Insights

Price, demand and travel trends for London to Idaho flights

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

What are the cheapest fares from London to Idaho recently?

The cheapest fare from London to Idaho in the last week was $835 round-trip, to Boise Air Term. Gowen Fld (BOI).

How do fares into airports in Idaho compare?

Flights from London to Idaho arrive at a single airport, Boise Air Term. Gowen Fld (BOI). Round-trip fares average about $1,090.

Are flights from London to Idaho cheaper or more expensive than last year?

Fares from London to Idaho are about 2% lower than they were in November last year, averaging $797 round-trip.

What's the cheapest month to fly from London to Idaho?

March is typically the cheapest month to fly from London to Idaho, with round-trip fares averaging $904. December and August are usually the most expensive, averaging $1,586 and $1,512, respectively.

How do fares from London to Idaho vary by day of the week?

On average, Wednesday is the cheapest day to fly from London to Idaho and Sunday is the most expensive. Looking at the past 12 months of KAYAK data, it's 51% more expensive to fly on a Sunday compared to Wednesday.

What's the best time of day to fly from London to Idaho?

It's cheapest to fly to Idaho in the morning with average prices of $1,175. The evening is the most expensive time to fly, with average prices of $1,227.

What's the best time to book a flight from London to Idaho?

Book your flights 17 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 47% compared to booking at the last minute (within 2 weeks of departure).

Find deals

Key details for London to Idaho flights

Low season

December

Cheapest flight

$572
Beat the crowds with an average 37% drop in travelers.
The most popular month to fly with an average 77% increase in travelers.
One-way flight from London Heathrow Airport to Boise

Your London to Idaho flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from London to Idaho?

    Yes. Fares from London to Idaho are low right now. As a rule of thumb, a round-trip under $967 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from London to Idaho?

    Over the past 12 months, round-trip fares from London to Idaho have typically cost between $967 and $1,496.

  • What are the main airports serving Idaho?

    Idaho has 9 airports. 100% of KAYAK users choose Boise Air Term. Gowen Fld (BOI) as their arrival airport.

  • Which airlines fly nonstop from London to Idaho?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from London to Idaho. One-stop options include:

    • American Airlines
    • British Airways
    • United Airlines

  • Which destinations in Idaho can I fly nonstop from London?

    Based on the flight schedule for the next 3 months, there are no nonstop flights from London to Idaho. The most popular destination you can reach with one stop is Boise.

  • Which cabin classes are available from London to Idaho?

    On flights from London to Idaho you can book Economy Class or Business Class.

  • What are some popular landmarks around Idaho?

    Idaho is home to many popular sights. KAYAK travelers' favorites include:

    • Idaho Central Arena
    • Julia Davis Park
    • Discovery Center of Idaho
    • Boise Art Museum

Your guide to booking London to Idaho flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 17 weeks before your trip. KAYAK data shows fares in this window are around 47% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • Flexible with your dates? Fly in March to save some money. It's typically the cheapest month on this route, while flights in December will cost you the most.
  • Fly out on a Wednesday to get the cheapest fares. Avoid Sunday flights, which are about 51% more expensive.
  • Start your trip in Boise, the most popular destination in Idaho. From there, it's easy to continue on to other popular spots such as Idaho Falls, Coeur d'Alene and Twin Falls.

More options for your flight from London to Idaho

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

Car rentals in Idaho
Hotels in Idaho
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