$140 Cheap flights to Idaho

81% of momondo users visit Boise more often than any other city in Idaho. When traveling to Boise, typically the most convenient airport to fly into is Boise Airport.

For the quickest drive from an arrival airport to Discovery Center of Idaho, fly into Boise Airport or Hailey Airport, which are closest to the area.

When visiting Idaho, the majority of people tend to find Discovery Center of Idaho, Julia Davis Park and Zoo Boise to be the most notable landmarks in the area.

Idaho typically has a temperature range from 30.2 °F(December) to 75.2 °F(July). Those looking to avoid rain and/or snow while visiting Idaho should plan their trip in August, July, or September, as these months are relatively less likely to have precipitation.

Delta is the most popular airline offering flights to Idaho, with 31% of our users opting to fly with them when traveling to Idaho. Other popular options include United Airlines and Alaska Airlines. There are a total of 10 different airlines flying to Idaho.

The cost to fly to Idaho varies based on a variety of factors, but you can expect to find prices as low as $34 or as high as $1,887. Based on recent airfare data, we’ve found that a ticket to Idaho for $259 or less is a good deal, whereas $337 is the average cost.

Consider booking a flight to Idaho on a Saturday, which is the cheapest day of the week. You will also find that flying out on a Wednesday is another low-cost option. Try to avoid booking your flight to Idaho on Sunday, which tends to be the most expensive day of the week.

If you're headed to Idaho, consider flying into Idaho Falls Fanning Field airport in Idaho Falls for the best deals, with an average airfare of $34. Alternatively, Boise Air Term. Gowen Fld airport in Boise is a close second for cheapest flights to Idaho with an average airfare of $78.

Prices for flights to Idaho are updated daily.

As of April 2026, there are 11 operators available to choose from for flights to Idaho.

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for 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.