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£368+ Cheap flights to Idaho

— BOI
29 Sep — 6 Oct1
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

Fri 25/906:40 -
2 stops22h 54m
Sat 3/1010:34 -
2 stops24h 06m
Deal found 25/8£595
Tue 13/1014:30 -
1 stop15h 27m
Tue 20/1007:20 -
1 stop19h 55m
Deal found 28/8£596
Tue 13/1014:30 -
1 stop17h 05m
Tue 20/1014:51 -
1 stop18h 44m
Deal found 29/8£615
Sat 3/1006:40 -
2 stops19h 00m
Sat 10/1012:08 -
2 stops26h 32m
Deal found 25/8£625
Thu 15/1017:00 -
1 stop13h 59m
Tue 27/1016:18 -
1 stop14h 02m
Deal found 28/8£639
Sun 11/1011:40 -
1 stop19h 19m
Sun 18/1016:18 -
1 stop16h 17m
Deal found 27/8£666
Tue 17/1106:35 -
2 stops20h 06m
Tue 24/1107:00 -
1 stop16h 25m
Deal found 26/8£668
Mon 16/1107:30 -
2 stops22h 21m
Mon 30/1114:51 -
1 stop11h 49m
Deal found 26/8£669
Fri 25/911:25 -
1 stop17h 10m
Sat 3/1008:08 -
1 stop17h 22m
Deal found 25/8£677
Sat 21/1106:35 -
2 stops21h 40m
Sat 28/1117:44 -
1 stop32h 56m
Deal found 26/8£686
Tue 17/1109:50 -
2 stops19h 21m
Tue 24/1107:00 -
2 stops26h 40m
Deal found 26/8£686
Fri 20/1107:30 -
2 stops17h 33m
Sun 29/1110:34 -
1 stop16h 06m
Deal found 26/8£687

Find flights to Idaho

Explore Idaho
Flights to Boise
Flights to Idaho Falls
Flights to Hailey

Find flight deals to Idaho

Return from

£595

One-way from

£368

Popular in

December

Cheapest in

January

Average price

£1,098
Scandinavian Airlines
  • Scandinavian Airlines
  • 25/9-3/10
  • 4 total stops
  • 47h 00m total
  • London to Boise
Search Deals
21/10
  • 21/10
  • 3 total stops
  • 39h 13m total
  • London to Idaho
Search Deals
Highest demand for flights based on searches. 1% potential increase in price.
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Cheapest flight prices on average. 4% potential price decrease (£33 potential savings vs. average return price).
Search Deals
Average for return flights in August 2026
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Cheapflights Fare Finder

 
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

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Sat 21/11

11:10-22:59

2 stops18h 49m

Boise Air Term. Gowen Fld

Sun 29/11

10:34-09:40

1 stop16h 06m

£686

LondonSpokane

LCY London City - GEG Spokane

LCYGEG

London City

Tue 17/11

09:50-21:11

2 stops19h 21m

Spokane

Tue 24/11

07:00-17:40

2 stops26h 40m

£686

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Fri 20/11

09:30-21:15

2 stops18h 45m

Boise Air Term. Gowen Fld

Fri 27/11

06:30-05:55

2 stops16h 25m

£694

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Sat 31/10

06:35-21:32

2 stops20h 57m

Boise Air Term. Gowen Fld

Sun 6/12

16:24-07:10

2 stops31h 46m

£695

LondonSpokane

LHR London Heathrow - GEG Spokane

LHRGEG

London Heathrow

Thu 14/1

11:35-11:24

2 stops31h 49m

Spokane

Mon 18/1

07:02-11:15

1 stop20h 13m

£708
Fastest return journey

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Fri 20/11

13:35-22:51

1 stop16h 16m

Boise Air Term. Gowen Fld

Sun 29/11

14:51-09:40

1 stop11h 49m

£711

LondonHailey

LHR London Heathrow - SUN Hailey Sun Valley-Friedman

LHRSUN

London Heathrow

Thu 14/1

14:45-10:41

1 stop26h 56m

Hailey Sun Valley-Friedman

Mon 18/1

19:37-12:20

1 stop33h 43m

£722

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Thu 28/1

14:45-15:21

1 stop31h 36m

Idaho Falls Fanning Field

Mon 1/2

13:56-12:20

1 stop15h 24m

£722

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Fri 9/10

15:05-09:33

2 stops25h 28m

Boise Air Term. Gowen Fld

Fri 16/10

14:44-09:40

1 stop11h 56m

£728

LondonBoise

LGW London Gatwick - BOI Boise Air Term. Gowen Fld

LGWBOI

London Gatwick

Mon 16/11

10:25-22:20

2 stops18h 55m

Boise Air Term. Gowen Fld

Mon 30/11

14:00-15:00

2 stops18h 00m

£739

Flights are sorted by cheapest return flights first.

Deals found on 29/8

Showing 1-10 of 32 resultsSorted by cheapest first
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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

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 59 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 £520
Virgin Atlantic
Virgin Atlantic
From £553
Lufthansa
Lufthansa
From £504
Icelandair
Icelandair
From £697

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

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

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?

The most popular places in Idaho to fly to are Boise, Idaho Falls, Hailey, Twin Falls and Lewiston.

Reviews of airlines servicing Idaho

Check out reviews from past customers who have flown United Airlines,Virgin Atlantic, andLufthansa 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.
United Airlines
7.4
Good
10,138 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
United Airlines
7.4
Good
10,138 reviews
United Airlines
7.4
Good
10,138 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
Virgin Atlantic
7.4
Good
695 reviews
United Airlines
7.4
Good
10,138 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
Lufthansa
6.8
Okay
8,229 reviews
United Airlines
7.4
Good
10,138 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!

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, Lufthansa 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 18 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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Flights to Boise
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Flights to Pocatello

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Users can book flights with no change fees policies with our dedicated filters. Book flights to Idaho flexibly with Cheapflights today.

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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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