Find flights
Airlines
Travel Guide

£420+ Cheap flights to Idaho

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 19/3. Fares are subject to change and may not be available on all flights or dates of travel.
— BOI
27 déc. — 3 janv.1
1 adult
1 adult, Economy, 0 bags

Flights to Idaho in 2025

Find the latest flights to Idaho in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 27 novembre 2025.

Return from

£567

One-way from

£334

Popular in

December

Cheapest in

September

Average price

£644
United Airlines
  • United Airlines
  • 20/4-27/4
  • 3 total stops
  • 42h 09m total
  • London to Boise
Search Deals
4/3
  • 4/3
  • 3 total stops
  • 34h 34m total
  • London to Idaho
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for return flights in November 2025
Search Deals

Find flights to Idaho

Browse one-way and return flights deals to Idaho on Cheapflights. Flight deals are based on user searches and were last updated on 27 novembre 2025
Explore Idaho
Flights to Boise
Flights to Idaho Falls
Flights to Hailey

Find flight deals to Idaho

Enter your travel dates to find the best prices.

Cheapest flights to Idaho
Explore the most affordable flight options available to Idaho. Find the lowest fares based on data from user searches, with prices last updated on 27 novembre 2025.

mer. 10/1208:20LHR - GEG
1 stop16h 20mMultiple Airlines
mar. 10/313:23GEG - LHR
1 stop15h 57mMultiple Airlines
Deal found 25/11£609
mer. 10/1206:30LHR - GEG
2 stops16h 25mKLM
mar. 10/312:40GEG - LHR
1 stop16h 00mKLM
Deal found 25/11£660
mar. 9/1211:55LHR - BOI
1 stop17h 30mFinnair
dim. 14/1206:44BOI - LHR
1 stop20h 16mFinnair
Deal found 25/11£667
lun. 8/1208:20LHR - BOI
1 stop21h 05mMultiple Airlines
lun. 15/1216:20BOI - LHR
1 stop12h 00mMultiple Airlines
Deal found 26/11£687
mar. 9/1214:45LHR - BOI
1 stop14h 31mVirgin Atlantic
lun. 15/1213:54BOI - LHR
1 stop15h 56mVirgin Atlantic
Deal found 25/11£692
lun. 8/1214:45LHR - BOI
1 stop35h 06mVirgin Atlantic
mar. 16/1214:04BOI - LHR
1 stop33h 21mVirgin Atlantic
Deal found 24/11£697
mar. 9/1210:05LHR - BOI
1 stop32h 29mLufthansa
dim. 14/1219:11BOI - LHR
2 stops29h 44mLufthansa
Deal found 25/11£701
mar. 9/1212:15LHR - BOI
2 stops16h 30mMultiple Airlines
lun. 15/1211:45BOI - LHR
2 stops16h 05mMultiple Airlines
Deal found 24/11£708
mar. 9/1210:05LHR - BOI
1 stop20h 39mLufthansa
lun. 15/1219:11BOI - LHR
2 stops19h 09mLufthansa
Deal found 24/11£709
mar. 23/1217:35LHR - GEG
2 stops30h 38mDelta
lun. 12/119:25GEG - LHR
1 stop31h 05mDelta
Deal found 25/11£712
mar. 9/1206:35LHR - BOI
2 stops18h 32mUnited Airlines
lun. 15/1212:16BOI - LHR
1 stop12h 39mUnited Airlines
Deal found 24/11£715
lun. 8/1207:40LHR - BOI
2 stops33h 19mUnited Airlines
lun. 15/1209:40BOI - LHR
2 stops18h 40mUnited Airlines
Deal found 24/11£720

Cheapflights Fare Finder

 
Locate flights to Idaho that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 27 novembre 2025.
Use the filters below to find and compare flights to Idaho that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

lun. 4/5

08:45-23:38

2 stops22h 53m

Spokane

dim. 10/5

07:02-11:10

1 stop20h 08m

£515

LondonSpokane

LCY - GEG

LCYGEG

London City

jeu. 5/3

09:40-21:03

2 stops19h 23m

Spokane

mer. 11/3

13:43-17:40

2 stops20h 57m

£530

LondonSpokane

LCY - GEG

LCYGEG

London City

mer. 4/3

09:50-21:07

2 stops19h 17m

Spokane

mer. 11/3

13:43-17:40

2 stops20h 57m

£530

LondonSpokane

LCY - GEG

LCYGEG

London City

ven. 6/3

09:55-21:03

2 stops19h 08m

Spokane

mer. 11/3

13:43-17:40

2 stops20h 57m

£530

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

mar. 10/3

06:35-21:03

2 stops21h 28m

Spokane

mar. 17/3

06:00-06:20

2 stops17h 20m

£555

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

mar. 3/3

08:30-21:17

2 stops20h 47m

Spokane

mar. 17/3

12:42-13:30

2 stops17h 48m

£555

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

mer. 4/3

09:30-21:07

2 stops19h 37m

Spokane

lun. 16/3

13:43-17:05

2 stops20h 22m

£558

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

lun. 9/2

07:30-18:07

2 stops17h 37m

Boise Air Term. Gowen Fld

lun. 16/2

14:40-14:45

2 stops17h 05m

£560

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

mer. 11/2

06:35-12:42

2 stops38h 07m

Spokane

dim. 15/2

12:38-07:25

1 stop34h 47m

£563

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

lun. 20/4

06:55-22:35

2 stops22h 40m

Boise Air Term. Gowen Fld

lun. 27/4

06:15-09:40

1 stop20h 25m

£568

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 32 results
1
2
3
4

Best time to book a flight to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho with our price prediction graph.
Estimated return 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 to Idaho

How long is the flight to Idaho?

On average, a flight from London to Idaho takes 20 hours 24 minutes. Flights to Idaho from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Idaho?

The most popular airlines flying from London to Idaho are United Airlines, Virgin Atlantic and Lufthansa.

United Airlines
United Airlines
From £544
Virgin Atlantic
Virgin Atlantic
From £591
Lufthansa
Lufthansa
From £543
KLM
KLM
From £558

What are the cheapest airlines that fly to Idaho?

The cheapest airlines flying from London to Idaho are United Airlines, Lufthansa and Virgin Atlantic.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 5.0 - 41.0 inches per month. December is typically the wettest month, when rainfall can reach 41.0 mm. August is typically the driest time to visit Idaho when rainfall is around 5.0 mm.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around -1.0 C).

What are the most popular places to fly to in Idaho?

Destination popularity is based on the amount of flight searches to Idaho in the last few years. This data was updated on 27 novembre 2025.
The most popular places in Idaho to fly to are Boise, Idaho Falls, Hailey, Twin Falls and Lewiston.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated 27 novembre 2025.
Check out reviews from past customers who have flown KLM, Virgin Atlantic, andUnited Airlines to the United States to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,423 reviews
Check prices

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,423 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
675 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,046 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,594 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,539 reviews
KLM
7.7
Good
1,423 reviews
Check prices

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

FAQs about flying to Idaho

Idaho climate

The climate in Idaho varies from region to region. Winter in the north is cloudy, humid and rainy. In the south summers are dry but wet. Generally it can get very hot in summer. Winters can be very cold.

Getting around Idaho

The best way to get around the state is to hire a car, RV or camper.

Idaho’s largest urban centre is Boise and buses are offered around the city by the Boise Urban Stages. Daily bus services are also available in Ketchum.

What is good to know if travelling to Idaho?

  • Hot springs are synonymous with Idaho but the best known is the Lava Hot Springs in the south of the state. Here million-year old springs bubble at a temperature of 40 degrees Celsius soothing away tired limbs. There’s also an Olympic-sized swimming pool, massage services or tube rides on the river.
  • In Ketchum celebrate the city’s mining heritage at The Wagon Days festival in Ketchum. For four days celebrations take place around town, including a shoot-out, a fiddler’s contest, a rodeo and the Big Hitch Parade.
  • The City of Trees, Boise, is surrounded by greenery making it a very popular golfing destination with more than 20 golf courses in the area.
  • Head to the great outdoors and take a trip to Bone Road for some stunning scenery. More than a track this 60-mile span has some of the best views of Idaho landscapes than anywhere else, guaranteeing some great wildlife sightings of moose or deer.
  • Known by the locals as the “ghost town” Silver City outside Bois was once used as silver mine for the War Eagle Mountain. Today, photography workshops take place in its old houses and saloons

  • When is the best time to fly to Idaho?

    The weather in Idaho is split into four seasons but the length of them varies on the area.  Spring comes early and winter later to Boise. Temperatures in winter drop down to -1 to -6  degrees (C) and in summer go up to the mid-20s. Flooding can occur in April and May after the snow melts. Peak Season Idaho gets very busy and flights and accommodation are higher in summer from late May to mid-September. The ski season also means peak-season rates and conditions. The ski runs are open by late November and the season lasts until March or early April. Off Season The best time to find cheap flights to Idaho is from mid-September to October. During this time the weather is still warm. Spring is also a good time to visit.

  • Can I find cheaper flights to Idaho if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Idaho on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Idaho?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Idaho.

  • What is the cheapest airport to fly to in Idaho?

    Boise Air Term. Gowen Fld is currently the cheapest airport to fly to in Idaho. One-way flights to Boise Air Term. Gowen Fld typically cost £58, while return flights cost around £309.

  • Where does the fastest flight to Idaho depart from?

    For those looking to save time traveling to Idaho, London offers the quickest one-way flight (14 hours 11 minutes).

  • Does Boise Air Term. Gowen Fld have car hire?

    Yes. Those touching down at Boise Air Term. Gowen Fld can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Boise Air Term. Gowen Fld?

    Yes. Boise Air Term. Gowen Fld has hotels nearby for those requiring accommodations. Rodeway Inn Boise Airport is the closest property to Boise Air Term. Gowen Fld (0.0 mi away from Boise Air Term. Gowen Fld).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find flights to Idaho cities and airports

Select your preferred flight destination in Idaho from the list below.
Flights to Boise
Flights to Idaho Falls
Flights to Hailey
Flights to Twin Falls
Flights to Lewiston
Flights to Pocatello

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Idaho?

Cheapflights helps you search for flights to Idaho via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets to Idaho?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Idaho.

Can Cheapflights find flights to Idaho with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to Idaho flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to Idaho become cheaper?

Yes, Cheapflights offers price alerts on Idaho flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.