How Space-A travel actually works.
Space-Available is a benefit that lets eligible service members, retirees, and their families fly for free on military aircraft with empty seats. The system has some quirks — here's the whole thing, start to finish, in six steps.
Confirm you’re eligible
Space-A is organized into six priority categories (Cat I through Cat VI). Your category controls when you board and who else you can bring — spouse, dependents, or only yourself. Use our eligibility wizard to figure out your category in under a minute.
Check my eligibilityPick a terminal to fly out of
There are 40+ AMC passenger terminals worldwide — Travis, Ramstein, Kadena, Norfolk, and many more. Each has its own signup process, hours, and contact info. Our terminal directory gives you the phone numbers, VRC links, and Patriot Express flags for every one of them.
Browse terminalsSee what’s actually flying
AMC releases a 72-hour flight schedule for each terminal. We parse those PDFs and put every flight on an interactive map, so you can see at a glance which destinations are realistic for your dates. No login required to preview.
View live flightsSign up (correctly)
Once you pick your terminal and window, you send a signup email. Every terminal wants it formatted slightly differently — miss a field, and you go to the bottom of the list. Our signup generator produces the exact right email for each terminal, so you don’t have to hunt for the format.
See signup toolsBring the right documents
ID, orders, passport, pet paperwork, kids’ birth certificates — what you need depends on your category, where you’re going, and who’s coming with you. Our checklist filters by your situation so you arrive with nothing missing.
Build my checklistShow up, wait for roll call, fly
Arrive a few hours early, check in, and wait for roll call. They call names in priority order until the plane is full. If you make it on — you fly free. If you don’t, you roll over to the next flight. Our tracker helps you see how competitive each roll call looks before you commit.
Ready to try it?
Everything above is free to start. No SSN, no credit card, no signup needed to see live flights.