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£317+ 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 21/6. Fares are subject to change and may not be available on all flights or dates of travel.
— BOI
30 Apr — 7 May1
1 adult

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 25 April 2025.

Return from

£583

One-way from

£317

Popular in

August

Cheapest in

November

Average price

£678
Lufthansa
  • Lufthansa
  • 26/9-6/10
  • 2 total stops
  • 45h 35m total
  • London to Boise
21/6
  • 21/6
  • 2 total stops
  • 58h 02m total
  • London to Idaho
Highest demand for flights based on searches. 17% potential increase in price (£113 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Average for return flights in April 2025

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 25 April 2025
Explore Idaho

Find flight deals to Idaho

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 25 April 2025.

Fri 26/908:30LHR - BOI
2 stops22h 14mLufthansa
Mon 6/1019:09BOI - LHR
2 stops18h 31mLufthansa
Deal found 25/4£583
Fri 26/914:05LHR - BOI
2 stops28h 26mUnited Airlines
Mon 6/1014:13BOI - LHR
1 stop13h 57mUnited Airlines
Deal found 25/4£599
Mon 9/610:45LGW - BOI
1 stop34h 59mMultiple Airlines
Mon 30/608:18BOI - LGW
1 stop19h 37mMultiple Airlines
Deal found 25/4£621
Sun 8/614:45LHR - GEG
2 stops41h 21mVirgin Atlantic
Sun 15/617:35GEG - LHR
2 stops29h 40mVirgin Atlantic
Deal found 25/4£634
Fri 10/1007:30LHR - GEG
2 stops21h 02mUnited Airlines
Sun 2/1116:00GEG - LHR
2 stops21h 20mUnited Airlines
Deal found 25/4£652
Fri 10/1012:20LHR - GEG
1 stop18h 55mLufthansa
Sun 2/1114:05GEG - LHR
1 stop33h 20mLufthansa
Deal found 25/4£653
Tue 21/1015:40LGW - GEG
2 stops37h 19mIcelandair
Tue 28/1020:40GEG - LGW
2 stops31h 15mIcelandair
Deal found 25/4£655
Tue 21/1021:25LHR - GEG
2 stops31h 34mIcelandair
Tue 28/1011:35GEG - LHR
2 stops16h 15mIcelandair
Deal found 25/4£659
Thu 8/506:30LHR - IDA
2 stops23h 21mDelta
Sun 11/518:50IDA - LHR
2 stops28h 55mDelta
Deal found 24/4£678
Wed 18/614:05LHR - BOI
2 stops50h 41mAir Canada
Mon 23/617:43BOI - LHR
2 stops29h 52mAir Canada
Deal found 25/4£680
Sun 8/610:55LGW - GEG
1 stop38h 12mMultiple Airlines
Sun 15/618:49GEG - LGW
1 stop32h 06mMultiple Airlines
Deal found 25/4£680
Sat 27/912:20LHR - JAC
2 stops31h 24mLufthansa
Sat 4/1016:20JAC - LHR
1 stop13h 00mLufthansa
Deal found 24/4£690

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 25 April 2025.
Use the filters below to find and compare flights to Idaho that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 26/9

08:30-23:44

2 stops22h 14m

Boise Air Term. Gowen Fld

Mon 6/10

19:09-20:40

2 stops18h 31m

£583

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 26/9

14:05-11:31

2 stops28h 26m

Boise Air Term. Gowen Fld

Mon 6/10

14:13-11:10

1 stop13h 57m

£599

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 9/6

10:45-14:44

1 stop34h 59m

Boise Air Term. Gowen Fld

Mon 30/6

08:18-10:55

1 stop19h 37m

£621

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Sun 8/6

14:45-00:06

2 stops41h 21m

Spokane

Sun 15/6

17:35-11:20

1 stop33h 45m

£634

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 9/6

08:40-23:14

2 stops22h 34m

Spokane

Mon 16/6

13:37-09:40

1 stop12h 03m

£669

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 8/5

06:30-22:51

2 stops23h 21m

Idaho Falls Fanning Field

Sun 11/5

18:50-06:45

2 stops28h 55m

£678

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 18/6

14:05-09:46

2 stops50h 41m

Boise Air Term. Gowen Fld

Mon 23/6

17:43-06:35

2 stops29h 52m

£680

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Sun 8/6

10:55-17:07

1 stop38h 12m

Spokane

Sun 15/6

18:49-10:55

1 stop32h 06m

£680

LondonJackson

LHR - JAC

LHRJAC

London Heathrow

Sat 27/9

12:20-12:44

2 stops31h 24m

Jackson Hole

Sat 4/10

16:20-06:20

2 stops31h 00m

£690

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/6

06:40-20:22

2 stops20h 42m

Boise Air Term. Gowen Fld

Mon 16/6

14:00-18:50

3 stops21h 50m

£712

Flights are sorted by cheapest return flights first.

Deals found on 25/4

Showing 1-10 of 54 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 18 hours 6 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 cheapest airlines that fly to Idaho?

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

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 25 April 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 25 April 2025.
See what other customers who have flown with Delta, KLM and SWISS to Idaho have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 (13 hours 9 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 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.

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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.

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