If you have ever returned a rental car and felt surprised by the fuel charge, you are not alone. Gas is a travel cost that can sneak up quickly. Heck, these days, with gas prices at record highs, they can put a damper on your summer road trip even when you are paying attention.
That is why this new and now extended offer from SIXT caught my attention. SIXT USA is extending its $49.99 flat-rate prepaid fuel option through June 30, 2026, for members of its free loyalty program, SIXT ONE. It applies to all vehicle types and is available across the U.S., including major airports and city locations.
I just signed up myself (it took 30 seconds using this link), and we just confirmed a rental for an upcoming trip (we’re partnering with them). What is great is that instead of worrying about what gas will cost during your trip or rushing to refill the tank right before returning your car, you can lock in a flat fuel price when you book.
Here is how it works
If you are a SIXT ONE member, you just:
- Book your rental through SIXT.com or the SIXT app
- Select the $49.99 prepaid fuel option at checkout
- You are done
No guessing. No last-minute stop at a gas station near the airport. Just a fixed fuel cost built into your reservation.
Why this matters right now
With summer travel in full swing, families and road trippers are already dealing with higher airfare and hotel rates, so it is a relief to take advantage of a solid promotion that can help save money and reduce stress.
Whenever I rent a car, I almost always turn down the fuel option since it is usually overpriced (unless, of course, a client is offering to pay). But when I do, I always have to set mulitple reminders to leave plenty of time to fill the car up the night before or do it on the way back to the airport, which can be stressful, especially if you are running late. With fuel prices so high, this is a great deal.
By the way
SIXT ONE is not just about gas. The program is free to join and also includes:
- Up to 20% savings on rentals depending on status
- Skip-the-counter pickup at select locations
- Faster points accumulation
- Complimentary upgrades when available
- Rewards you can use toward future rentals
What many American travelers do not realize is that SIXT has a strong U.S. footprint, with more than 120 locations across 27 states and availability at 56 major airports. So this is not a niche program. It is widely usable for most domestic trips.
If you are planning a summer rental car trip and want to avoid thinking about fuel costs, joining SIXT ONE before you book might be worth it. It is free, takes less than a minute, and gives you more control over a cost that is usually unpredictable.
