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£377+ 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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
— BOI
22 May — 29 May1
1 adult
1 adult, Economy, 0 bags

Flights to Idaho in 2026

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 22 April 2026.

Wed 2/906:55
LHR
-
GEG
2 stops22h 09m
Lufthansa
Wed 9/912:57
GEG
-
LHR
1 stop14h 13m
Lufthansa
Deal found 21/4£642
Mon 1/615:40
LGW
-
GEG
2 stops16h 19m
Multiple Airlines
Mon 8/613:59
GEG
-
LGW
2 stops16h 41m
Multiple Airlines
Deal found 17/4£649
Wed 2/906:55
LHR
-
GEG
2 stops22h 09m
United Airlines
Wed 9/916:00
GEG
-
LHR
2 stops21h 20m
United Airlines
Deal found 21/4£660
Wed 2/910:50
LHR
-
BOI
2 stops20h 00m
United Airlines
Mon 14/907:05
BOI
-
LHR
2 stops17h 20m
United Airlines
Deal found 21/4£660
Wed 2/914:10
LHR
-
BOI
1 stop15h 36m
Lufthansa
Mon 14/914:44
BOI
-
LHR
1 stop11h 56m
Lufthansa
Deal found 21/4£666
Mon 7/920:25
LHR
-
BOI
2 stops32h 00m
Lufthansa
Mon 21/912:23
BOI
-
LHR
1 stop13h 07m
Lufthansa
Deal found 21/4£668
Fri 25/906:40
LHR
-
BOI
2 stops20h 38m
Scandinavian Airlines
Sun 11/1012:42
BOI
-
LHR
2 stops20h 18m
Scandinavian Airlines
Deal found 19/4£676
Fri 29/517:00
LHR
-
BOI
2 stops36h 13m
Scandinavian Airlines
Sat 6/612:15
BOI
-
LHR
2 stops38h 05m
Scandinavian Airlines
Deal found 21/4£679
Mon 18/519:30
LHR
-
BOI
2 stops34h 28m
Scandinavian Airlines
Tue 2/610:39
BOI
-
LHR
2 stops24h 51m
Scandinavian Airlines
Deal found 18/4£681
Tue 1/914:50
LHR
-
BOI
1 stop13h 35m
United Airlines
Mon 14/908:15
BOI
-
LHR
1 stop16h 10m
United Airlines
Deal found 21/4£684
Tue 8/909:30
LHR
-
BOI
2 stops31h 05m
Air Canada
Wed 23/906:30
BOI
-
LHR
2 stops17h 00m
Air Canada
Deal found 21/4£689
Wed 2/907:25
LHR
-
BOI
2 stops22h 07m
United Airlines
Fri 18/906:30
BOI
-
LHR
1 stop20h 10m
United Airlines
Deal found 21/4£690

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 22 April 2026
Explore Idaho
Flights to Boise
Flights to Idaho Falls
Flights to Hailey

Find flight deals to Idaho

Find the latest flights to Idaho in 2026, 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 22 April 2026.

Return from

£660

One-way from

£377

Popular in

December

Cheapest in

January

Average price

£621
United Airlines
  • United Airlines
  • 2/9-14/9
  • 4 total stops
  • 37h 20m total
  • London to Boise
Search Deals
20/5
  • 20/5
  • 3 total stops
  • 22h 08m total
  • London to Idaho
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£39 potential savings vs. average return price).
Search Deals
Average for return flights in April 2026
Search Deals

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 22 April 2026.
Use the filters below to find and compare flights to Idaho that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Mon 1/6

15:40-23:59

2 stops16h 19m

Spokane

Mon 8/6

13:59-14:40

2 stops16h 41m

£649
Fastest return journey

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 2/9

11:25-17:53

1 stop13h 28m

Boise Air Term. Gowen Fld

Mon 14/9

14:44-09:40

1 stop11h 56m

£684

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 2/6

06:40-16:57

2 stops18h 17m

Spokane

Tue 9/6

11:19-16:00

2 stops20h 41m

£718

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 1/7

06:55-17:56

2 stops18h 01m

Boise Air Term. Gowen Fld

Wed 30/9

14:31-12:35

1 stop15h 04m

£719

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 29/9

06:40-18:35

2 stops18h 55m

Boise Air Term. Gowen Fld

Sat 3/10

12:42-17:40

2 stops21h 58m

£727

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 29/5

06:40-23:58

2 stops24h 18m

Boise Air Term. Gowen Fld

Fri 5/6

06:35-13:35

2 stops24h 00m

£733

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Sat 10/10

07:45-20:53

2 stops21h 08m

Spokane

Mon 12/10

05:00-11:55

2 stops22h 55m

£773

LondonBoise

LCY - BOI

LCYBOI

London City

Mon 18/5

10:00-23:58

2 stops20h 58m

Boise Air Term. Gowen Fld

Tue 2/6

06:35-16:40

2 stops27h 05m

£773

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 3/6

06:55-21:40

2 stops21h 45m

Boise Air Term. Gowen Fld

Wed 10/6

10:41-10:40

2 stops16h 59m

£779

LondonSpokane

LCY - GEG

LCYGEG

London City

Wed 2/9

09:15-21:16

2 stops20h 01m

Spokane

Wed 9/9

13:38-17:55

2 stops20h 17m

£793

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 32 resultsSorted by cheapest first
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 17 hours 15 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 £466
Virgin Atlantic
Virgin Atlantic
From £595
Lufthansa
Lufthansa
From £505
KLM
KLM
From £655

What are the cheapest airlines that fly to Idaho?

The cheapest airlines flying from London to Idaho are Lufthansa, United Airlines 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 22 April 2026.
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 22 April 2026.
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
7.8
Good
1,501 reviews
Check prices

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,501 reviews
KLM
7.8
Good
1,501 reviews
Check prices

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.5
Good
687 reviews
KLM
7.8
Good
1,501 reviews
Check prices

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,622 reviews
KLM
7.8
Good
1,501 reviews
Check prices

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Icelandair
7.0
Good
639 reviews
KLM
7.8
Good
1,501 reviews
Check prices

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,938 reviews
KLM
7.8
Good
1,501 reviews
Check prices

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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.

  • 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 19 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. Layover 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.

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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