Route guide

Saint Croix to Miami (STX-MIA): Nonstop Upgrade & Award Space

American Airlines flies nonstop between Saint Croix (STX) and Miami (MIA), roughly 14 times a week. With American Airlines operating this route so often, premium seats still turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every STX to MIA departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

See STX to MIA on the interactive map Get started free
14
Nonstop flights a week
1,139 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every STX to MIA departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Saint Croix to Miami to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each STX to MIA departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See STX to MIA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Saint Croix to Miami nonstop

Carriers operating STX to MIA nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • American Airlines
See STX to MIA on the interactive map →

Frequently asked questions about STX to MIA

How far is Miami from Saint Croix?
STX to MIA covers about 1,139 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from STX to MIA?
American Airlines is currently the only airline flying STX to MIA nonstop. 2LNR tracks confirmed upgrade and award space on every American Airlines departure.
How many flights a week are there from STX to MIA?
About 14 nonstop flights a week run between Saint Croix and Miami in the current schedule, operated by American Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on STX to MIA?
Open the STX to MIA calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Saint Croix to Miami route, and 2LNR will notify you when space opens. It's free to start.

Never miss STX to MIA upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

Get started free