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£286+ 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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
— BOI
23 Nov — 30 Nov1
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 24 October 2025.

Return from

£535

One-way from

£286

Popular in

July

Cheapest in

September

Average price

£730
United Airlines
  • United Airlines
  • 8/12-15/12
  • 3 total stops
  • 47h 59m total
  • London to Boise
Search Deals
30/1
  • 30/1
  • 3 total stops
  • 52h 59m total
  • London to Idaho
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£120 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for return flights in October 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 24 October 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 24 October 2025.

Wed 19/1109:00LHR - GEG
2 stops22h 29mUnited Airlines
Wed 26/1111:25GEG - LHR
2 stops35h 15mUnited Airlines
Deal found 22/10£532
Mon 8/1207:40LHR - BOI
2 stops33h 19mUnited Airlines
Mon 15/1208:15BOI - LHR
1 stop14h 40mUnited Airlines
Deal found 22/10£535
Wed 19/1111:35LHR - GEG
1 stop17h 10mLufthansa
Wed 26/1106:00GEG - LHR
1 stop17h 25mLufthansa
Deal found 22/10£545
Mon 8/1211:35LHR - BOI
1 stop13h 32mLufthansa
Mon 15/1214:49BOI - LHR
1 stop11h 51mLufthansa
Deal found 21/10£547
Mon 8/1218:00LHR - BOI
2 stops35h 45mMultiple Airlines
Mon 15/1214:49BOI - LHR
1 stop11h 51mMultiple Airlines
Deal found 21/10£550
Fri 5/1206:35LHR - GEG
2 stops22h 24mLufthansa
Sun 7/1212:33GEG - LHR
1 stop34h 52mLufthansa
Deal found 22/10£568
Fri 5/1206:35LHR - GEG
2 stops22h 24mUnited Airlines
Sun 7/1213:47GEG - LHR
2 stops22h 48mUnited Airlines
Deal found 22/10£573
Mon 8/1218:00LHR - BOI
2 stops26h 39mAir Canada
Mon 15/1206:20BOI - LHR
2 stops17h 10mAir Canada
Deal found 21/10£588
Sun 7/1208:30LHR - BOI
2 stops21h 15mUnited Airlines
Sun 14/1217:25BOI - LHR
2 stops20h 55mUnited Airlines
Deal found 23/10£593
Sat 6/1206:35LHR - GEG
2 stops22h 24mUnited Airlines
Sat 13/1216:10GEG - LHR
2 stops20h 25mUnited Airlines
Deal found 22/10£595
Fri 5/1208:30LHR - BOI
2 stops21h 15mUnited Airlines
Fri 12/1219:11BOI - LHR
2 stops18h 24mUnited Airlines
Deal found 21/10£598
Mon 17/1111:35LHR - BOI
1 stop16h 46mLufthansa
Mon 24/1114:31BOI - LHR
1 stop12h 09mLufthansa
Deal found 21/10£601

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 24 October 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

Wed 19/11

09:00-23:29

2 stops22h 29m

Spokane

Wed 26/11

12:45-07:25

1 stop34h 40m

£532

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 8/12

07:40-09:59

2 stops33h 19m

Boise Air Term. Gowen Fld

Mon 15/12

06:20-05:55

2 stops16h 35m

£535

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 2/3

09:00-21:07

2 stops20h 07m

Spokane

Mon 9/3

07:00-07:25

1 stop17h 25m

£536

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 10/3

06:35-21:20

2 stops21h 45m

Spokane

Tue 17/3

06:05-06:20

2 stops17h 15m

£538

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 11/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Tue 17/2

08:41-07:25

1 stop15h 44m

£541

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 11/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Mon 16/2

13:27-12:00

1 stop15h 33m

£543

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 19/11

11:35-20:45

1 stop17h 10m

Spokane

Wed 26/11

06:00-07:25

1 stop17h 25m

£545

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 11/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Sun 15/2

12:16-05:55

1 stop34h 39m

£550

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 20/4

16:25-21:16

2 stops35h 51m

Boise Air Term. Gowen Fld

Mon 27/4

17:22-12:20

1 stop11h 58m

£552

LondonSpokane

LCY - GEG

LCYGEG

London City

Mon 2/3

09:50-21:07

2 stops19h 17m

Spokane

Mon 9/3

06:05-12:50

2 stops23h 45m

£559

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 32 results
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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 19 hours 51 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 £539
Virgin Atlantic
Virgin Atlantic
From £585
Lufthansa
Lufthansa
From £537
KLM
KLM
From £552

What are the cheapest airlines that fly to Idaho?

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

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 24 October 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 24 October 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
1,405 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Crew

8.4

Boarding

7.8

Food

7.3

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
1,405 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Crew

8.4

Boarding

7.8

Food

7.3

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
670 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Crew

8.4

Boarding

7.8

Food

7.3

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
8,995 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Crew

8.4

Boarding

7.8

Food

7.3

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
7,518 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Crew

8.4

Boarding

7.8

Food

7.3

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
7,469 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.6

Entertainment

7.1

Crew

8.4

Boarding

7.8

Food

7.3

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, Finnair is rated the highest out of the airlines that fly to Idaho.

  • 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 (16 hours 4 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

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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 Lewiston
Flights to Twin Falls
Flights to Pocatello

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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.

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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.

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