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£273+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
— BOI
20 Jul — 27 Jul1
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 15 July 2025.

Return from

£511

One-way from

£273

Popular in

July

Cheapest in

November

Average price

£930
27/8-6/9
  • 27/8-6/9
  • 2 total stops
  • 38h 39m total
  • London to Boise
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1/9
  • 1/9
  • 3 total stops
  • 47h 51m total
  • London to Idaho
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£109 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for return flights in July 2025
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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 15 July 2025
Explore Idaho
Flights to Boise
Flights to Idaho Falls
Flights to Hailey

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 15 July 2025.

Thu 28/810:45LGW - GEG
1 stop32h 50mMultiple Airlines
Thu 4/906:25GEG - LGW
1 stop20h 30mMultiple Airlines
Deal found 14/7£462
Wed 27/810:55LGW - BOI
1 stop18h 59mMultiple Airlines
Sat 6/908:10BOI - LGW
1 stop19h 40mMultiple Airlines
Deal found 14/7£511
Mon 1/908:40LHR - GEG
2 stops22h 25mUnited Airlines
Mon 22/905:15GEG - LHR
2 stops17h 05mUnited Airlines
Deal found 14/7£516
Sun 31/807:25LHR - GEG
2 stops21h 38mLufthansa
Mon 22/907:23GEG - LHR
1 stop22h 47mLufthansa
Deal found 14/7£518
Wed 24/908:25LHR - GEG
2 stops18h 52mAmerican Airlines
Sun 28/912:36GEG - LHR
2 stops34h 19mAmerican Airlines
Deal found 14/7£519
Fri 5/909:30LHR - GEG
2 stops19h 33mMultiple Airlines
Fri 19/905:15GEG - LHR
2 stops44h 45mMultiple Airlines
Deal found 13/7£528
Wed 24/913:25LHR - GEG
1 stop13h 20mDelta
Sun 28/922:58GEG - LHR
1 stop23h 47mDelta
Deal found 14/7£559
Mon 1/909:25LCY - GEG
2 stops21h 40mMultiple Airlines
Mon 22/907:23GEG - LCY
2 stops21h 07mMultiple Airlines
Deal found 14/7£562
Wed 24/908:40LCY - GEG
2 stops18h 05mVirgin Atlantic
Sun 28/914:23GEG - LCY
2 stops34h 27mVirgin Atlantic
Deal found 14/7£579
Wed 24/909:20LCY - GEG
2 stops17h 25mDelta
Sun 28/917:30GEG - LCY
2 stops39h 10mDelta
Deal found 13/7£580
Mon 1/920:40LGW - GEG
2 stops53h 59mIberia
Sun 21/912:36GEG - LGW
2 stops47h 24mIberia
Deal found 14/7£592
Sat 30/807:25LHR - BOI
2 stops20h 50mUnited Airlines
Sat 13/908:15BOI - LHR
2 stops15h 05mUnited Airlines
Deal found 14/7£595

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 15 July 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

Thu 28/8

10:45-11:35

1 stop32h 50m

Spokane

Thu 4/9

06:25-10:55

1 stop20h 30m

£462

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Wed 27/8

10:55-22:54

1 stop18h 59m

Boise Air Term. Gowen Fld

Sat 6/9

08:10-10:50

1 stop19h 40m

£511

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 1/9

08:40-23:05

2 stops22h 25m

Spokane

Mon 22/9

07:23-07:25

1 stop16h 02m

£516

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Sun 31/8

07:25-21:03

2 stops21h 38m

Spokane

Sat 20/9

12:35-10:25

1 stop13h 50m

£518

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 24/9

08:25-19:17

2 stops18h 52m

Spokane

Sun 28/9

12:36-06:55

2 stops34h 19m

£519

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Fri 5/9

09:30-21:03

2 stops19h 33m

Spokane

Fri 19/9

05:15-10:00

2 stops44h 45m

£528

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 24/9

13:25-18:45

1 stop13h 20m

Spokane

Sun 28/9

22:58-06:45

1 stop23h 47m

£559

LondonSpokane

LCY - GEG

LCYGEG

London City

Mon 1/9

09:25-23:05

2 stops21h 40m

Spokane

Mon 22/9

07:23-12:30

2 stops21h 07m

£562

LondonSpokane

LCY - GEG

LCYGEG

London City

Wed 24/9

08:40-18:45

2 stops18h 05m

Spokane

Sun 28/9

14:23-08:50

2 stops34h 27m

£579

LondonSpokane

LCY - GEG

LCYGEG

London City

Wed 24/9

09:20-18:45

2 stops17h 25m

Spokane

Sun 28/9

17:30-16:40

2 stops39h 10m

£580

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 52 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 17 hours 13 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 £718
Virgin Atlantic
Virgin Atlantic
From £809
Lufthansa
Lufthansa
From £709
KLM
KLM
From £712

What are the cheapest airlines that fly to Idaho?

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

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 15 July 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 15 July 2025.
Check out reviews from past customers who have flown Delta, KLM, andFinnair 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.
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,956 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,657 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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, KLM 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 55 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

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 Lewiston
Flights to Twin Falls
Flights to Pocatello

Fly with Cheapflights

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How does Cheapflights help users find flights to Idaho?

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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.

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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