£503 Cheap flights to Idaho

The average flight to Idaho costs £228/per person and the cheapest flight to Idaho is £58/per person. This price varies based on a multitude of factors such as departure airport, airline, time of booking and when you plan on travelling.

85% of momondo users visit Boise more often than any other city in Idaho. When travelling to Boise, typically the most convenient airport to fly into is Boise Airport.

Temperatures in Idaho can vary between -1 °C and 24 °C based on the time of year. Typically, the coldest month in Idaho will be December, and the warmest month will be July. It is also worth noting that those looking to avoid rain and/or snow should consider travelling to Idaho in August, July, and September, as that is when precipitation is least likely.

Of the 10 airlines that fly to Idaho, United Airlines, Virgin Atlantic and Lufthansa happen to be the most favoured based on our user data. United Airlines is the most popular among the three airlines, with 40% of users choosing them for their travels to Idaho.

If your travel plans are flexible and you’re looking to save money on flights to Idaho, then be sure to book your departure on a Wednesday. Flying out on a Wednesday, as well as a Tuesday, is your best option. Departing on a Sunday tends to be the most expensive day of the week to fly to Idaho.

Prices for flights to Idaho were last updated today.

As of December 2025, there are 10 operators available to choose from for flights to Idaho.

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Idaho.

The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.