Sea-Tac Hidden Fee Calculator
Don't get shocked at the rental counter. Enter your advertised daily rate below to instantly calculate the hidden airport fees and surcharges you will actually pay.
Quote Parameters
Many online rental sites show you a cheap "base rate" in search results, hiding the mandatory 17.2% local surcharges and $6.00/day facility fee until you are ready to checkout.
Estimated Final Price
Why is renting a car at Sea-Tac so expensive?
When renting through third-party platforms like Expedia, Kayak, or Priceline, the initial search results often highlight a "Base Rate." However, visitors to Seattle are frequently shocked at the rental counter when the final bill is 30% to 50% higher than expected.
This is due to three mandatory, non-negotiable fees applied to all rentals at the Sea-Tac Facility:
- State and Local Surcharges (17.2%): A combination of the standard Washington State sales tax plus a specialized King County high-occupancy vehicle / stadium rental surcharge.
- Customer Facility Charge ($6.00 per day): This CFC is collected by the Port of Seattle (not the rental agency) to pay off the $419 million construction bonds for the physical rental car facility.
- Vehicle License Recovery Fee ($1.20 per day): Recoups the cost of registering the vehicle in Washington state.
Our True Cost Estimator bypasses the "Base Rate" illusion and calculates the exact final price you should expect to see on your contract.