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Cheap Flights to Idaho
| Popular in | August | High demand for flights, 17% potential price rise |
| Cheapest in | February | Best time to find cheap flights, 5% potential price drop |
| Average price | £727 | Average for round-trip flights in April 2020 |
| Round-trip from | £833 | From London to Boise |
Cheapest prices for Idaho flights by month
When is the best time to fly to Idaho?
Choose a month below to see average flight price and weather conditions.
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LON - BOI Price
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£255 - £998
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BOI Temperature
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5 - 34 °C
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BOI Rainfall
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4 - 37 mm
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When is the best time to book flights to Idaho?
Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Which day is cheapest to fly to Idaho?
The cheapest flights to Idaho are usually found when departing on a Monday. The departure day with the highest cost at present is Friday.
What time of day is cheapest to fly?
Idaho flights can be made cheaper if you choose a flight in the morning. Booking a flight in the afternoon will likely mean higher prices.
The jewel in the so-called Gem State’s crown is its stunning and remarkably unspoilt scenery. Adventurous types flock here to hike, climb, raft, ride and ski – or simply goggle at the views. Much of the terrain is mountainous, wild and wooded, with some spectacular gorges; at 8913ft, the dramatic Hells Canyon is deeper than the Grand Canyon.
In central Idaho, the ski resorts of Ketchum and Sun Valley are beloved of affluent second-homers and celebrities. Ernest Hemingway loved the area’s tranquillity (not to mention the hunting and fly fishing) and is buried at Ketchum, where he spent the last few years of his life.
An hour’s drive away is one of Idaho’s many wilderness areas, the Craters of the Moon National Monument. It’s an unearthly, eerily desolate 83sq mile volcanic landscape; in winter, cross-country skiers tackle the 11km loop road.
In the far north, bordering onto Canada, the panhandle region is famed for its lakes, watersports and angling; down south, adrenaline junkies take to the Salmon and Snake Rivers for whitewater rafting and kayaking.
Search and compare: cheap flights 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.
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.
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.
