Car rental prices at St. Louis Airport

An Intermediate car like the Volkswagen Jetta at St. Louis Airport typically costs around $74 a day for October 2026 when booked about a month ahead. A smaller Economy car like the Mitsubishi Mirage is about $67 a day, while a Fullsize Chevrolet Malibu averages $88. Leaving your booking to the last 2 weeks edges the Intermediate up to $75. June 2027 is the dearest month across the year at $121 a day for a Fullsize, compared to $73 in November 2026 for an Economy, and the price checker will show the exact rate for your dates.

At St. Louis Airport, booking late saves about 36%, with prices dropping from $105 9 months before travel to $75 around 2 weeks before your trip. For October 2026, an Intermediate car costs $74 a day booked a month before your trip and $75 in the final 2 weeks. If you have not booked yet, you have not missed out, as prices start high at $105 across the year. Across the 395 airports we track car hire prices for on our sites, 48% of people book within 2 weeks of pickup.

Budget is the cheapest company for car rental at St. Louis Airport, at $61 a day on average for an Intermediate from 1,872 prices. Avis at $65 and Hertz at $69 are the next cheapest at St. Louis Airport. The most expensive is Alamo at $111 a day. On reviews, National scores best at 92 out of 100 from 279 reviews; Budget does not yet have enough reviews for a 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 St. Louis Airport, scoring 92/100 from 279 reviews, with desk wait times averaging 24 minutes. National is among the pricier options at $104 a day over the last 12 months for an Intermediate car. Hertz is the next highest rated at 85/100 from 627 reviews and averages $69 a day with a 14-minute wait. Budget is the cheapest supplier at $61 a day, but it 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 St. Louis Airport, typical deposits range from $200 with Budget to $299 with Avis, and none of the 6 counters take a standard debit card across all vehicles. Of the 6 counters, 5 are strictly credit-card only, while Hertz accepts a debit card for some cars only. Filter for a debit card before comparing prices so you only see cars you can release. Extras charged at the desk are listed under each car with their price.

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

Payment rules and desk queues catch people out at St. Louis Airport, where 5 of the 6 counters refuse debit cards and counter waits can reach 40 minutes. Alamo's desk wait averages 40 minutes, which is quite a delay when you only want to hit the interstate. Only 1 provider takes a debit card for certain models, so bring a credit card in the main driver's name. All 6 providers are based at the airport, so you will not need an off-site shuttle bus.

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

For comfortable highway driving, pick an Intermediate car like the Volkswagen Jetta at St. Louis Airport, priced at about $74 a day in October 2026. It seats 5 people and holds 3 bags, providing a smooth ride for long business corridors. Stepping down to an Economy car like the Mitsubishi Mirage costs $67 a day but holds only 2 bags, while stepping up to a Fullsize Chevrolet Malibu costs $88 for 4 bags. Every car offered is an automatic, while electric and hybrid cars are not available in the fleet, so expect petrol models.