Car hire prices at Boise Airport

Boise Airport car hire runs to around £46 a day in October 2026 for a Compact car like a Nissan Versa booked about a month ahead, with an Economy at £47 and an Intermediate at £53. Leave booking to the last 2 weeks and the Compact car edges up to £49 a day. Across the year, November 2026 is cheapest for a Compact car at £54 a day, while March 2027 peaks at £104 for a Fullsize car. If your quote sits well above these, check your exact dates with the price checker.

For October 2026 at Boise Airport, booking about a month ahead costs £46 a day for a Compact car, and prices barely move if you wait until the last 2 weeks, when it is £49. Booking 9 months before your trip across the year averaged £75 a day for an Intermediate, so holding off has not cost you. Across the 395 airports we track car hire prices for, 48% of our customers book within 16 days of pickup. When you book barely moves the rate at Boise, so lock in a fair price once your dates are settled.

Budget, Sixt and Enterprise are the cheapest companies at Boise Airport for an Intermediate car, each averaging £53 a day over the last 12 months, including 1,865 prices for Budget. All 6 desks are in the terminal, but every single one requires a credit card and refuses debit cards. Sixt scores 89/100 from 543 reviews, whereas Enterprise scores 90/100 from 786 reviews and Alamo averages £58 a day with a 91/100 score.

The cheapest company can cost you a longer queue or a bigger deposit, so check the review score and desk wait beside each car in the results before you book.

National is the best-reviewed company at Boise Airport, scoring 92 out of 100 from 279 customer reviews, with an average desk wait of 24 minutes. National is also the dearest supplier, averaging £66 a day for an Intermediate car over the last 12 months from 3,567 prices. Alamo follows closely on reviews with 91 out of 100 from 1,450 reviews, while Alamo costs £58 a day. Budget is among the cheapest at £53 a day, but Budget does not yet have enough reviews for a score.

Review scores are CarTrawler customers' own, from the last five months; the score and the desk wait sit beside each car in the results.

At Boise Airport, security deposits held on your card range from £148 with Budget and Sixt to £222 with Avis, and all 6 desks take credit cards only. None of the rental desks accept a debit card for deposits. Filter for your card type on the price checker before comparing offers so you do not choose a car you cannot collect. Any optional extras charged at the desk are listed beside each car with their price.

If you bring your own child seat, check your airline's rules first: most carry one free, some charge.

Every counter at Boise Airport requires a credit card in the main driver's name, and desk waits stretch to 33 minutes at Budget. All 6 desks operate on-site, but none of them accept a debit card for the deposit, so turning up without a credit card leaves you stranded. Long road trips across Idaho make a cramped car miserable, yet travellers still book the smallest model and spend hours wishing for knee room. Avis has the shortest queue, averaging 17 minutes.

Only 50% of prices at Boise Airport are full tank out, full tank back, so read the fuel line under the car before you book.

For longer drives from Boise Airport, pick an Intermediate car like the Volkswagen Jetta, which seats 5 with room for 3 bags at around £53 a day in October 2026. The smaller Economy class, like a Mitsubishi Mirage, costs £47 a day but only takes 2 bags, which makes long highway stretches cramped. A Fullsize car like a Chevrolet Malibu seats 6 and takes 4 bags at £63 a day. Every car offered is automatic at no extra charge, and none of the fleet is electric or hybrid, so you will be filling up with petrol.