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£337+ 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
— BOI
12 Apr — 19 Apr1
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 7 April 2025.

Return from

£567

One-way from

£337

Popular in

August

Cheapest in

November

Average price

£699
United Airlines
  • United Airlines
  • 24/5-2/6
  • 3 total stops
  • 50h 19m total
  • London to Boise
7/5
  • 7/5
  • 3 total stops
  • 45h 31m total
  • London to Idaho
Highest demand for flights based on searches. 17% potential increase in price (£120 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 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 7 April 2025
Explore Idaho

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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 7 April 2025.

Fri 16/510:55LGW - GEG
1 stop19h 27mMultiple Airlines
Sun 25/507:10GEG - LGW
1 stop19h 45mMultiple Airlines
Deal found 7/4£550
Mon 5/507:25LHR - GEG
2 stops39h 16mUnited Airlines
Mon 12/506:00GEG - LHR
1 stop17h 25mUnited Airlines
Deal found 7/4£554
Sat 24/516:15LHR - BOI
2 stops30h 44mUnited Airlines
Mon 2/607:50BOI - LHR
1 stop19h 35mUnited Airlines
Deal found 7/4£567
Mon 5/510:35LHR - GEG
1 stop21h 03mLufthansa
Mon 12/506:00GEG - LHR
1 stop20h 25mLufthansa
Deal found 7/4£568
Mon 5/509:55LHR - GEG
2 stops16h 50mDelta
Mon 12/519:00GEG - LHR
2 stops17h 00mDelta
Deal found 7/4£585
Thu 1/506:15LHR - GEG
2 stops22h 29mVirgin Atlantic
Fri 9/509:45GEG - LHR
2 stops17h 40mVirgin Atlantic
Deal found 6/4£611
Thu 1/510:55LHR - GEG
1 stop13h 20mKLM
Fri 9/515:30GEG - LHR
1 stop14h 45mKLM
Deal found 6/4£619
Fri 19/916:40LHR - JAC
2 stops28h 03mUnited Airlines
Sat 27/914:44JAC - LHR
1 stop14h 36mUnited Airlines
Deal found 7/4£626
Mon 5/509:55LCY - GEG
2 stops21h 43mLufthansa
Mon 12/506:00GEG - LCY
2 stops26h 25mLufthansa
Deal found 7/4£634
Fri 25/413:05LHR - BOI
1 stop16h 23mKLM
Fri 2/514:15BOI - LHR
1 stop13h 55mKLM
Deal found 7/4£658
Wed 18/614:50LHR - BOI
1 stop13h 36mLufthansa
Mon 23/619:07BOI - LHR
2 stops28h 13mLufthansa
Deal found 7/4£671
Sat 7/621:25LHR - BOI
2 stops56h 17mIcelandair
Sat 14/620:24BOI - LHR
2 stops40h 56mIcelandair
Deal found 6/4£703

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 7 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

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Fri 16/5

10:55-22:22

1 stop19h 27m

Spokane

Sun 25/5

07:10-10:55

1 stop19h 45m

£550

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 5/5

07:25-14:41

2 stops39h 16m

Spokane

Mon 12/5

06:00-07:25

1 stop17h 25m

£554

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 24/5

16:15-15:59

2 stops30h 44m

Boise Air Term. Gowen Fld

Mon 2/6

07:50-10:25

1 stop19h 35m

£567

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 5/5

10:35-23:38

1 stop21h 03m

Spokane

Mon 12/5

06:00-10:25

1 stop20h 25m

£568

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 5/5

09:55-18:45

2 stops16h 50m

Spokane

Mon 12/5

19:00-20:00

2 stops17h 00m

£585

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 1/5

06:15-20:44

2 stops22h 29m

Spokane

Fri 9/5

09:45-11:25

2 stops17h 40m

£611

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 1/5

10:55-16:15

1 stop13h 20m

Spokane

Fri 9/5

15:30-14:15

1 stop14h 45m

£619

LondonJackson

LHR - JAC

LHRJAC

London Heathrow

Fri 19/9

16:40-13:43

2 stops28h 03m

Jackson Hole

Sat 27/9

14:44-12:20

1 stop14h 36m

£626

LondonSpokane

LCY - GEG

LCYGEG

London City

Mon 5/5

09:55-23:38

2 stops21h 43m

Spokane

Mon 12/5

06:00-16:25

2 stops26h 25m

£634

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 25/4

13:05-22:28

1 stop16h 23m

Boise Air Term. Gowen Fld

Fri 2/5

14:15-11:10

1 stop13h 55m

£658

Flights are sorted by cheapest return flights first.

Deals found on 7/4

Showing 1-10 of 55 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 20 hours 0 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 7 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 7 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.

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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, Glasgow offers the quickest one-way flight (15 hours 16 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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