Is there long term parking at the airport, or do you have to pay to park in a lot and transfer to the airport?

yes

You don’t want to pay a fortune for parking. We understand your time and money are valuable, which is why we offer convenient and affordable parking options at St. Louis Lambert International Airport. Lot D is perfect for parkers who are looking for the best possible value in parking. The daily parking rate is $7.00. We accept Visa, MasterCard, American Express and Discover cards. Payment is due at the time of exit. Tax is included in all of our rates. Be sure to leave yourself 30 minutes for parking in case you run into traffic. We provide a free shuttle service that runs 24 hours a day and makes pick-ups every 10 minutes. Tax is always included in our fees. Accessible parking on Lot D is located at row four (4). For wheelchair assistance, please contact your airline for curbside assistance. https://superparkinglot.com/lot-d

Yes...drive to long term parking then s bus will take u to terminal entrance...when returning u will pay the parking fee upon leaving...the farther away parking, the cheaper

There is a lot that is adjacent to the terminal that you just have to walk into the terminal from it's $23 a day