BOI

£389 Find Cheap Flights to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boise departing on 22/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Boise
These are the airlines KAYAK users have selected most often from within our search results for flights to Boise
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Everything you should know

Cheapest return fare
£400
Typical prices: £609-£997
United Airlines
Mon 2/2Sun 8/2
LHR - BOI • 1 stop
Cheapest one-way flight
£389
Typical prices: £602-£713
Multiple Airlines
Sun 22/3
LHR - BOI • 3 stops
When to travel
September
Cheapest • 20% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Boise

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Boise that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Boise

Mon, 2 Feb - Sun, 8 Feb
United Airlines Logo
11:35 - 21:52
LHR
-
BOI
17h 17m1 stop
United Airlines Logo
14:37 - 09:40
BOI
-
LHR
12h 03m1 stop
£400United Airlines
Fri, 27 Feb - Mon, 9 Mar
United Airlines Logo
11:10 - 23:48
LHR
-
BOI
19h 38m2 stops
United Airlines Logo
14:40 - 09:40
BOI
-
LHR
13h 00m1 stop
£505United Airlines
Fri, 16 Jan - Fri, 23 Jan
Lufthansa Logo
11:10 - 19:13
LHR
-
BOI
39h 03m2 stops
Lufthansa Logo
08:15 - 05:55
BOI
-
LHR
14h 40m1 stop
£506Lufthansa
Fri, 16 Jan - Fri, 23 Jan
Lufthansa Logo
11:10 - 19:13
LHR
-
BOI
39h 03m2 stops
Lufthansa Logo
08:15 - 09:45
BOI
-
LHR
18h 30m2 stops
£510Lufthansa
Mon, 20 Apr - Mon, 27 Apr
Icelandair Logo
15:40 - 22:21
LGW
-
BOI
37h 41m2 stops
Icelandair Logo
17:30 - 14:40
BOI
-
LGW
38h 10m2 stops
£643Icelandair
Mon, 20 Apr - Mon, 27 Apr
Icelandair Logo
15:40 - 22:21
LGW
-
BOI
37h 41m2 stops
Icelandair Logo
17:30 - 14:40
BOI
-
LGW
38h 10m2 stops
£644Icelandair
Fri, 16 Jan - Fri, 23 Jan
Multiple Airlines Logo
11:55 - 23:01
LGW
-
BOI
18h 06m2 stops
Multiple Airlines Logo
11:35 - 10:55
BOI
-
LGW
16h 20m2 stops
£704Multiple Airlines
Sun, 11 Jan - Sat, 9 May
Multiple Airlines Logo
09:15 - 21:18
EDI
-
BOI
43h 03m2 stops
Multiple Airlines Logo
07:31 - 09:15
BOI
-
EDI
18h 44m2 stops
£872Multiple Airlines
Wed, 4 Feb - Sun, 8 Feb
Finnair Logo
10:30 - 19:25
INV
-
BOI
39h 55m2 stops
Finnair Logo
07:20 - 19:00
BOI
-
INV
28h 40m2 stops
£916Finnair
Wed, 4 Feb - Sun, 8 Feb
Finnair Logo
10:30 - 19:25
INV
-
BOI
39h 55m2 stops
Finnair Logo
07:20 - 19:00
BOI
-
INV
28h 40m2 stops
£922Finnair
Booking Insights

KAYAK's insights & trends for flights to Boise

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

What is the cheapest month to fly to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Boise, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Boise is January, where tickets cost £569 on average for one-way flights. On the other hand, the most expensive months are December and August, where the average cost of tickets from the United Kingdom is £1,229 and £942 respectively. For return trips, the best month to travel is September with an average price of £594.

How far in advance should I book a flight to Boise?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 82 days before departure.

Good to know - Cheap tickets to Boise

Low seasonJanuary
Cheapest flight£389
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (2% more expensive on average)
Flight from London Heathrow Airport to Boise

When to book flights to Boise

Are your dates flexible? Find out the best times to travel to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Boise based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Boise flights

  • How far is Boise Air Term. Gowen Fld Airport from central Boise?

    There are 3 miles between Boise city centre and Boise Air Term. Gowen Fld Airport.

  • What is the name of Boise’s airport?

    When flying to Boise, you'll arrive at Boise Air Term. Gowen Fld Airport (BOI). The airport is also known as Air Term Gowen Fld, Air Term. Gowen Fld, or Boise.

  • What is the cheapest day to fly to Boise?

    Based on KAYAK data, the cheapest day to fly to Boise is Wednesday where tickets can be as cheap as £667. On the other hand, the most expensive day to fly is Sunday, where prices are £859 on average.

  • How does KAYAK find such low prices on flights 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 to Boise.

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Boise?

    The cheapest time of day to fly to Boise is generally in the afternoon, when flights cost £666 on average. The most expensive time of day to fly to Boise is generally at night, which is peak travel time and where the average cost of a ticket is £868.

Top tips for finding cheap flights to Boise

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boise flight deals.

Reviews of the top 5 airlines flying to Boise

 
See real verified KAYAK customer reviews for airlines flying to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Boise. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Boise? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
KLMOverall score based on 1430 reviews
7.2Food
8.4Crew
7.8Boarding
7.6Comfort
7.1Entertainment
Airline reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

2.0 MediocreElizabeth, Oct 2025
CDG - AMS
Read more KLM reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

We boarded late. The crew at the airport was dismissive. The seat cushion on the plane was uncomfortable.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

Airline food is airline food, but the plane was wonderful and the seating comfort outstanding. One of my best flights in quite a while.

Crew was outstanding, helpful and friendly. Food is deteriorating. The snack at the end of the flight was not good, a greasy moosh of toast cheese snd other unidentifiable ingredients. Coming from Germany a pretzl with butter would have been better. Entertainment had a great selection.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

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Everything you need to know for your flight to Boise

Information on the airport you'll fly into in Boise