
Yes, you can often rent a car using air miles, but it's not as straightforward as booking a flight. Most major airline loyalty programs, including those from Delta SkyMiles, American AAdvantage, and United MileagePlus, allow you to redeem miles for car rentals through their online travel portals. The process typically involves searching for a rental on the airline's website, where you'll see an option to pay with miles instead of cash.
However, the value you get per mile can vary significantly. It's crucial to do a quick calculation to see if it's a good deal. For example, if a rental costs $300 or 30,000 miles, you're getting a value of 1 cent per mile. If you can get better value by using those miles for a flight, it might not be the most efficient use. These redemptions are usually handled through partnerships with major rental car companies like Hertz, Avis, and Enterprise.
The main advantage is convenience, especially if you're short on cash but have a large mileage balance. The primary drawback is that these redemptions often don't include mandatory fees like taxes, airport surcharges, or charges for additional drivers, which you'll still need to pay out-of-pocket. You also typically won't earn rental car loyalty points or airline miles on a mileage-based booking.
| Airline Program | Partner Rental Companies | Typical Redemption Value (Cents per Mile) | Key Consideration |
|---|---|---|---|
| Delta SkyMiles | Hertz, Avis, Alamo | 0.8 - 1.2 | SkyMiles are often valued lower for cars than for flights. |
| American AAdvantage | Hertz, Budget, Avis | 1.0 - 1.5 | Better value can sometimes be found during promotional periods. |
| United MileagePlus | Hertz, Avis, Budget | 0.9 - 1.3 | United often runs "MileagePlus Exclusive Deals" for better value. |
| Chase Ultimate Rewards | National, Avis, Silvercar | 1.0 - 1.5 (if transferred to partner) | Using points from credit card programs can offer more flexibility. |
Before you book, always compare the mileage cost directly with the cash price on the rental company's own website. For the best value, consider using a general travel rewards credit card that offers points redeemable for travel purchases at a fixed rate, as this can sometimes be a smarter option than dipping into your airline-specific miles.

It's possible, but I rarely find it worthwhile. I check my airline's travel portal, and the mileage price always seems high. I'd rather save those miles for a flight upgrade. Instead, I use a card that gives me bonus points on travel purchases to pay for the rental. It's simpler, and I always know exactly what I'm paying for without any complex math. For me, cash and credit card points are just more transparent.

You can, but you have to be a savvy points-and-miles person to get a good deal. The key is to treat it like any other purchase: compare the cost. Look up the cash price on Kayak or directly with Hertz, then see how many miles your airline wants. If the math works out to more than 1.2 cents per mile, it might be okay. Otherwise, pay with a card that has good travel and save your miles for a last-minute flight where they're truly valuable.

Sure, the option is there on the airline's website. But watch out for the fine print. You might think you're getting a free rental, but you'll still be on the hook for all sorts of fees and taxes when you pick up the car. Those charges can add up, especially at airport locations. I'd only consider it if I had miles about to expire and no other use for them. For a regular rental, a discount code or corporate rate is almost always a better financial decision.

As someone who travels weekly for work, I use this feature for convenience, not for maximum value. When I need a rental car last-minute and the company is slow to issue a purchase order, I'll often just book it through my United portal using miles to avoid the personal expense. It's seamless and gets the job done. I wouldn't plan a vacation around it, but for business travel hiccups, it's a useful backup tool that saves me from fronting large amounts of cash.


