One-way rental · MCI → STL
Picking up at Kansas City International and returning the car in St. Louis? Here's whether the different drop-off works, what the one-way fee might add, where you return the car at STL, and what to watch for on the 250 miles drive — so the return location doesn't eat your budget.
Search Kansas City pickup on Discover Cars →A Kansas City-to-St. Louis one-way that survives on simple backtracking pain: pay the drop fee or spend most of a day returning the car to MCI. It's roughly 250 miles, about 3.5 to 4 hours via I-70, mainly on I-70 east across Missouri through Columbia toward St. Louis.
Route heads-up: Missouri has no toll roads, so this is a clean fee-versus-time calculation. I-70 construction, weather and game-day traffic near St. Louis can still affect whether returning at STL is worth the drop charge.
At St. Louis Lambert International, drop-offs are at the each company's off-airport facility (a short shuttle ride). To reach it you take your rental company's free shuttle from Terminal 1 (Exit 17) or Terminal 2 (Exit 12). Knowing this before you arrive helps you leave enough buffer for your flight — and confirm your brand actually has a return desk at STL, since one-way returns must be booked to a participating location.
Local toll heads-up at STL: Missouri has no toll roads, so driving around St. Louis is toll-free.
One-way fees are set by the rental brand, not the airport, and they change — confirm with your supplier. Here's how the major brands handle a different drop-off:
| Company | One-way rentals | Drop-off fee | Cross-region | Good to know |
|---|---|---|---|---|
| Enterprise Enterprise US one-way policy ↗ · checked Jun 2026 |
Yes | May apply; varies by route & season | Yes | One-way rentals must be booked in advance. Returns within the same city can still trigger a drop charge, mileage charge, or a higher rate. |
| National National US one-way fees ↗ · checked Jun 2026 |
Yes | Often none airport-to-airport | Yes | Unlimited mileage on most U.S. and Canada one-ways; some specialty vehicles (large vans, large SUVs) have mileage limits. Certain one-way routes are not allowed. |
| Alamo Alamo one-way policy ↗ · checked Jun 2026 |
Yes | May apply; varies by location | Yes | Book one-way rentals in advance. Same-city returns can still be charged, and certain one-way routes are not allowed. |
| Hertz Hertz US one-way rentals ↗ · checked Jun 2026 |
Yes | No separate drop-off fee (US) | Yes | About 1,700 U.S. locations (airport and neighborhood). Free unlimited mileage on most rentals; SUVs, minivans and Prestige vehicles can be rented one-way. |
| Avis Avis one-way car rental FAQ ↗ · checked Jun 2026 |
Yes | Most locations: none | Yes | Book one-way rentals in advance. Driving out of state is allowed; review any fees during booking. Car type and availability vary by participating location. |
| Budget Budget one-way car rental ↗ · checked Jun 2026 |
Yes | May apply; same metro usually free | Yes | One-way hire is available from most Budget locations; the price quoted online already includes any applicable one-way charge. |
| Sixt Sixt USA rental information ↗ · checked Jun 2026 |
Yes | Shown upfront; free on select FL/CA/NV routes | With conditions | U.S. one-way rentals are generally allowed between Sixt locations; international one-ways are not permitted, and driving outside permitted areas adds a per-mile fee. |
| Dollar Dollar general policies (one-way) ↗ · checked Jun 2026 |
Yes | Drop fee applies; varies | Yes | One-way rentals within the U.S. and within Canada vary by Dollar location and vehicle availability. Book in advance. |
| Thrifty Thrifty one-way car rental ↗ · checked Jun 2026 |
Yes | Drop fee applies; varies | Yes | One-way rentals within the U.S. and within Canada vary by Thrifty location and vehicle availability. Prices vary by location, date, length and car class. |
How we source this: each row links to the rental company's own published one-way / drop-off policy, with the month we last checked it. These policies change often and vary by route, location and vehicle class, so treat them as a guide and always confirm the current one-way fee and terms with your supplier before you book.
There's no single "one-way only" button on the big search engines, but on a comparison site like Discover Cars you can set the different drop-off in a couple of steps:
Arriving the night before your flight out of STL? Compare hotels around St. Louis:
Yes. Most major brands — including Enterprise, Hertz, Avis, Budget, National, Alamo and Sixt — allow you to pick up at Kansas City International (MCI) and return at St. Louis Lambert International (STL), as long as you book the one-way in advance. Availability and the car classes offered vary by location, so reserve early.
It depends entirely on the brand, dates and vehicle. Some suppliers charge no separate drop-off fee on domestic one-ways, while others add a one-time drop charge or a higher one-way rate that is disclosed when you book. The Kansas City to St. Louis corridor is well served, so it is worth comparing a few suppliers on the drop fee, not just the daily rate.
At St. Louis Lambert International, the rental cars are at the each company's off-airport facility (a short shuttle ride); to reach it you take your rental company's free shuttle from Terminal 1 (Exit 17) or Terminal 2 (Exit 12). Confirm your specific brand's drop-off location and hours before you travel.
Missouri has no toll roads, so this is a clean fee-versus-time calculation. I-70 construction, weather and game-day traffic near St. Louis can still affect whether returning at STL is worth the drop charge. Ask your rental company how it handles tolls so you are not surprised by add-on fees.
It is roughly 250 miles, about 3.5 to 4 hours via I-70, mainly on I-70 east across Missouri through Columbia toward St. Louis. Build in extra time for traffic, fuel and the rental return process at STL.