£509+ Cheap flights to Idaho

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
— BOI
14 Apr — 21 Apr1
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 15 March 2026.

Mon 27/410:35
LHR
-
BOI
1 stop17h 42m
United Airlines
Sun 3/506:23
BOI
-
LHR
1 stop18h 02m
United Airlines
Deal found 12/3£509
Thu 9/407:25
LHR
-
GEG
2 stops23h 27m
Multiple Airlines
Thu 23/407:09
GEG
-
LHR
1 stop19h 01m
Multiple Airlines
Deal found 12/3£604
Mon 20/407:25
LHR
-
BOI
2 stops19h 28m
United Airlines
Mon 27/410:35
BOI
-
LHR
2 stops16h 50m
United Airlines
Deal found 12/3£608
Mon 4/508:40
LHR
-
GEG
2 stops21h 00m
United Airlines
Sun 10/505:00
GEG
-
LHR
2 stops42h 40m
United Airlines
Deal found 12/3£614
Mon 13/407:30
LHR
-
GEG
2 stops21h 41m
Lufthansa
Mon 20/407:00
GEG
-
LHR
1 stop20h 10m
Lufthansa
Deal found 14/3£615
Wed 29/407:25
LHR
-
GEG
2 stops19h 26m
United Airlines
Sun 3/505:00
GEG
-
LHR
2 stops42h 40m
United Airlines
Deal found 11/3£617
Wed 23/907:30
LHR
-
BOI
2 stops20h 49m
United Airlines
Sun 27/918:55
BOI
-
LHR
1 stop33h 15m
United Airlines
Deal found 11/3£618
Wed 29/407:25
LHR
-
GEG
2 stops19h 26m
United Airlines
Wed 6/506:00
GEG
-
LHR
1 stop17h 25m
United Airlines
Deal found 14/3£620
Tue 1/906:55
LHR
-
BOI
2 stops17h 58m
United Airlines
Tue 15/906:30
BOI
-
LHR
2 stops16h 25m
United Airlines
Deal found 14/3£623
Wed 2/909:30
LHR
-
BOI
2 stops18h 55m
United Airlines
Mon 14/910:37
BOI
-
LHR
1 stop18h 43m
United Airlines
Deal found 14/3£624
Mon 27/407:25
LHR
-
GEG
2 stops19h 26m
United Airlines
Mon 4/505:00
GEG
-
LHR
2 stops17h 45m
United Airlines
Deal found 13/3£627
Mon 27/409:15
LCY
-
GEG
2 stops20h 20m
Lufthansa
Mon 4/512:25
GEG
-
LCY
2 stops21h 30m
Lufthansa
Deal found 14/3£636

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 March 2026
Explore Idaho

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 15 March 2026.

Return from

£509

One-way from

£312

Popular in

December

Cheapest in

January

Average price

£633
United Airlines
  • United Airlines
  • 27/4-3/5
  • 2 total stops
  • 35h 44m total
  • London to Boise
3/6
  • 3/6
  • 2 total stops
  • 41h 07m total
  • London to Idaho
Highest demand for flights based on searches. 9% potential increase in price (£74 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (£42 potential savings vs. average return price).
Average for return flights in March 2026

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 March 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

LHR - GEG

LHRGEG

London Heathrow

Wed 29/4

07:25-21:11

2 stops21h 46m

Spokane

Sun 3/5

16:10-09:40

1 stop33h 30m

£617

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 29/4

07:25-18:51

2 stops19h 26m

Spokane

Wed 6/5

05:00-08:20

2 stops19h 20m

£620

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 4/5

08:40-21:40

2 stops21h 00m

Spokane

Sun 10/5

16:10-09:40

1 stop33h 30m

£625

LondonSpokane

LCY - GEG

LCYGEG

London City

Mon 27/4

09:15-21:35

2 stops20h 20m

Spokane

Mon 4/5

12:25-17:55

2 stops21h 30m

£636
Fastest return journey

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 20/4

13:05-22:03

1 stop15h 58m

Boise Air Term. Gowen Fld

Mon 27/4

14:37-09:40

1 stop12h 03m

£647

LondonSpokane

LCY - GEG

LCYGEG

London City

Mon 4/5

09:15-21:16

2 stops20h 01m

Spokane

Sun 10/5

12:25-17:55

2 stops45h 30m

£663

LondonSpokane

LCY - GEG

LCYGEG

London City

Mon 13/4

09:15-21:11

2 stops19h 56m

Spokane

Mon 20/4

12:35-17:55

2 stops21h 20m

£725

LondonBoise

LCY - BOI

LCYBOI

London City

Mon 20/4

09:15-21:22

2 stops19h 07m

Boise Air Term. Gowen Fld

Mon 27/4

08:20-08:40

2 stops17h 20m

£736

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 20/4

15:40-22:57

2 stops38h 17m

Boise Air Term. Gowen Fld

Mon 27/4

16:38-14:40

2 stops15h 02m

£740

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 10/6

09:00-23:55

2 stops21h 55m

Boise Air Term. Gowen Fld

Wed 17/6

10:35-12:20

2 stops18h 45m

£742

Flights are sorted by cheapest return flights first.

Deals found on 15/3

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 53 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 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 15 March 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 15 March 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.

Food

7.3

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.8

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

Food

7.3

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.8

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

Food

7.3

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.8

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

Food

7.3

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.8

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

Food

7.3

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.8

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

Food

7.3

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.8

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 22 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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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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