Question 1

What is the cheapest flight from London Heathrow Airport to Boise?

Accepted Answer

In the last 3 days, the lowest price for a flight from London Heathrow Airport to Boise was $521 for a one-way ticket and $778 for a round-trip. <a href='/flight-routes/London-Heathrow-LHR/Boise-Air-Term-Gowen-Fld-BOI'>Visit our flight page for the latest deals!>/a>

Question 2

Do I need a passport to fly between London and Boise?

Accepted Answer

Yes, you’ll need a passport to travel to Boise from London. <a href='/flight-routes/London-Heathrow-LHR/Boise-Air-Term-Gowen-Fld-BOI'>Visit our flight page for the latest deals!>/a>

Question 3

Which aircraft models fly most regularly from London to Boise?

Accepted Answer

We unfortunately don’t have that data for this specific route.

Question 4

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

Accepted Answer

The cheapest month for flights from London Heathrow Airport to Boise is November, where tickets cost $781 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $1,325 and $1,294 respectively.

Question 5

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

Accepted Answer

The cheapest month for flights from London Heathrow Airport to Boise is November, where tickets cost $781 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $1,325 and $1,294 respectively.

Question 6

How does KAYAK find such low prices on flights from London to Boise?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Boise. <a href='/flight-routes/London-Heathrow-LHR/Boise-Air-Term-Gowen-Fld-BOI'>Visit our flight page for the latest deals!>/a>

Question 7

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Boise?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from London is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/London-Heathrow-LHR/Boise-Air-Term-Gowen-Fld-BOI'>Visit our flight page for the latest deals!>/a>

Question 8

What is the Hacker Fare option on flights from London to Boise?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boise with an airline and back to London with another airline. Booking your flights between London and BOI can sometimes prove cheaper using this method. <a href='/flight-routes/London-Heathrow-LHR/Boise-Air-Term-Gowen-Fld-BOI'>Visit our flight page for the latest deals!>/a>

Question 9

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Boise?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boise from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/London-Heathrow-LHR/Boise-Air-Term-Gowen-Fld-BOI'>Visit our flight page for the latest deals!>/a>

Question 10

What is the cheapest layover airport when flying from London to Boise?

Accepted Answer

Flights via Denver (DEN) offer the most affordable fares, with an average round-trip price of $897.

Question 11

What is the most popular layover airport when flying from London to Boise?

Accepted Answer

Denver (DEN) is the top choice – 67% of KAYAK users who clicked on 1-stop flights from London to Boise picked an itinerary connecting there.

Question 12

Which layover airport has the quickest connection when flying from London to Boise?

Accepted Answer

If you prefer a quick connection, Seattle (SEA) often has the shortest layovers from London to Boise, with an average of 1h 07m.

Question 13

Which layover airport offers the shortest total travel time from London to Boise?

Accepted Answer

Consider flying via Seattle (SEA) for the shortest journey. The average one-way travel time for flights connecting there is 13h 25m.

Question 14

Which airlines provide the cheapest flights from London to Boise?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from London to Boise were found on United Airlines ($778) and Lufthansa ($795).

Question 15

Which airlines provide the cheapest flights from London to Boise?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from London to Boise were found on United Airlines ($778) and Lufthansa ($795).

Question 16

How far in advance should I book a flight from London Heathrow Airport to Boise?

Accepted Answer

To get a below average price on the flight from London Heathrow Airport to Boise, you should book around 2 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Question 17

How far in advance should I book a flight from London Heathrow Airport to Boise?

Accepted Answer

To get a below average price on the flight from London Heathrow Airport to Boise, you should book around 2 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Low season	February
High season	July
Cheapest flight	$521

LHR - BOI

$521 Find Cheap Flights from London to Boise

KAYAK searches hundreds of travel sites at once for deals on flights to Boise

Everything you should know

Cheap Flights from London to Boise (LHR-BOI)

Recent round-trip flight deals from London to Boise

Recent one-way flight deals from London to Boise

KAYAK's insights & trends for London to Boise flights

Get data-powered insights and trends into flights from London to Boise to help you find the cheapest flights, the best time to fly and much more.

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

The cheapest month for flights from London Heathrow Airport to Boise is November, where tickets cost $781 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $1,325 and $1,294 respectively.

How far in advance should I book a flight from London Heathrow Airport to Boise?

To get a below average price on the flight from London Heathrow Airport to Boise, you should book around 2 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Which airlines provide the cheapest flights from London to Boise?

In the past 3 days, the cheapest round-trip tickets from London to Boise were found on United Airlines ($778) and Lufthansa ($795).

What is the most popular layover airport when flying from London to Boise?

Denver (DEN) is the top choice – 67% of KAYAK users who clicked on 1-stop flights from London to Boise picked an itinerary connecting there.

What is the cheapest layover airport when flying from London to Boise?

Flights via Denver (DEN) offer the most affordable fares, with an average round-trip price of $897.

Which layover airport offers the shortest total travel time from London to Boise?

Consider flying via Seattle (SEA) for the shortest journey. The average one-way travel time for flights connecting there is 13h 25m.

Which layover airport has the quickest connection when flying from London to Boise?

If you prefer a quick connection, Seattle (SEA) often has the shortest layovers from London to Boise, with an average of 1h 07m.

Good to know

When to book flights from London to Boise

FAQs for booking London to Boise flights

What is the cheapest flight from London Heathrow Airport to Boise?

In the last 3 days, the lowest price for a flight from London Heathrow Airport to Boise was $521 for a one-way ticket and $778 for a round-trip.

Do I need a passport to fly between London and Boise?

Yes, you’ll need a passport to travel to Boise from London.

Which aircraft models fly most regularly from London to Boise?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from London to Boise?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Boise.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Boise?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from London is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from London to Boise?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boise with an airline and back to London with another airline. Booking your flights between London and BOI can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Boise?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boise from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to Boise

Information on your arrival and departure airports

Cabin class types available on flights to Boise

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

Find direct flights to and from London and Boise

Flights to other popular destinations

Flights from domestic origins to Boise

Choose which airport to fly into in London

Find deals for your return flight