BOI car rental

Boise Air Terminal/Gowen Field. 11 on-airport branches and 2 more within 5 miles. Off-airport lots are often cheaper; the search shows the full total for each.

Search BOI

Pick dates and your age to see every option and the real total.

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Companies and age rules

At age 21

Avis
Minimum age 21 · 3 branches in Idaho
Rents at 21· unverified
Young-driver fee: amount not published
Source: avis.com · checked 2026-10-19 · all Avis rules
Enterprise
Minimum age 21 · 3 branches in Idaho
Rents at 21· unverified
Young-driver fee: amount not published
Source: enterprise.com · checked 2026-10-19 · all Enterprise rules
National
Minimum age 21 · 2 branches in Idaho
Rents at 21· unverified
Young-driver fee: amount not published
Source: nationalcar.com · checked 2026-10-19 · all National rules
Hertz
Minimum age 20 · 1 branch in Idaho
Rents at 21· unverified
Young-driver fee: $19/day
Estimate — from Hertz policy page, verify at booking · hertz.com · checked 2026-10-19 · all Hertz rules
Budget
Minimum age 21 · 1 branch in Idaho
Rents at 21· unverified
Young-driver fee: amount not published
Source: budget.com · checked 2026-10-19 · all Budget rules
Alamo
Minimum age 21 · 1 branch in Idaho
Rents at 21· unverified
Young-driver fee: $25/day
Estimate — from Alamo policy page, verify at booking · alamo.com · checked 2026-10-19 · all Alamo rules
Dollar
Minimum age 20 · 1 branch in Idaho
Rents at 21· unverified
Young-driver fee: amount not published
Source: dollar.com · checked 2026-10-19 · all Dollar rules
Thrifty
Minimum age 20 · 1 branch in Idaho
Rents at 21· unverified
Young-driver fee: amount not published
Source: thrifty.com · checked 2026-10-19 · all Thrifty rules

BOI car rental

Companies and age rules

At the airport

Nearby (within 5 miles)