Space-A Scout › Routes › Joint Base Elmendorf-Richardson to Osan AB
In the year ending November 2026, 23 Space-A flights went from Joint Base Elmendorf-Richardson to Osan AB. That is every week or two, and roughly 11 percent of Joint Base Elmendorf-Richardson's recorded departures. On the 20 of those where the terminal reported who made the cut, Category VI travelers, the retirees and veterans at the back of the line, got a seat 90 percent of the time.
By raw volume, June and July saw the most departures on this route in the year ending November 2026, and November the fewest. The route was active in 10 of the 14 months on record.
Category VI is the last group called at roll call. On this route, 90 percent of the 20 reported flights still had room by the time Cat VI was called. Those are good odds by any standard.
The lowest category that made each reported flight, in the year ending November 2026:
| Category III | 2 flights |
| Category VI | 18 flights |
Seats are the other half of the picture. On the 23 flights that reported both numbers, the terminal released an average of 52 seats and 2 were taken, so a typical flight on this route left with about 50 Space-A seats empty. That is a lot of room, and it is why the Category VI number above is as good as it is.
A schedule on the 72-hour board is a plan, not a promise, and on this route the record says how much of a plan. Of the 21 flights posted to Joint Base Elmendorf-Richardson's board for Osan AB in the last 120 days, 4 (19 percent) disappeared from the board more than twelve hours before they were due to fly, 9 (43 percent) changed their roll-call time after first posting, and 8 (38 percent) changed their seat count. Normal turbulence for Space-A. Check the board the night before and again the morning of.
Sign-up at Joint Base Elmendorf-Richardson is free and does not commit you to anything. You can email the terminal at SpaceA5@us.af.mil (the email doubles as your dated proof of sign-up), use the AMC online sign-up portal and call (907) 552-8588 / (907) 552-4616 to confirm anything time-sensitive. Do it 45 to 60 days before you want to travel, because your place in line at roll call is your sign-up date, and a sign-up is good for 60 days.
In the year ending November 2026, Joint Base Elmendorf-Richardson recorded 23 Space-A flights to Osan AB, which works out to every week or two. Firm schedules only appear about 72 hours ahead; the free live boards at spaceascout.com show what is posted now.
In the year ending November 2026, Category VI travelers, which covers retirees and eligible veterans, made the cut on 90 percent of the 20 flights where Joint Base Elmendorf-Richardson reported a category for this route.
Email SpaceA5@us.af.mil with your name, category, number of travelers and desired destinations, or use the AMC online portal. Sign up 45 to 60 days before you want to fly. It is free and the email gives you a dated record.
Everything Joint Base Elmendorf-Richardson flies · Everything Osan AB flies
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Space-A Scout collects 72-hour schedules, Patriot Express calendars and roll-call results from more than a hundred passenger terminals, refreshed every twenty minutes. It is free and no account is required. Built by Luke Connally, USMC, Retired, who flies Space-A himself. See every route we hold records for, every base, or start with the five-minute primer.