Route guide

Miami to St. Louis (MIA-STL): Nonstop Upgrade & Award Space

American Airlines and Southwest Airlines fly nonstop between Miami (MIA) and St. Louis (STL), roughly 14 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every MIA to STL 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.

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14
Nonstop flights a week
1,070 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every MIA to STL 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 Miami to St. Louis 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 MIA to STL 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 MIA to STL on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Miami to St. Louis nonstop

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

  • American Airlines
  • Southwest Airlines
See MIA to STL on the interactive map →

Frequently asked questions about MIA to STL

How far is St. Louis from Miami?
MIA to STL covers about 1,070 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from MIA to STL?
American Airlines and Southwest Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How many flights a week are there from MIA to STL?
About 14 nonstop flights a week run between Miami and St. Louis in the current schedule, operated by American Airlines and Southwest Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on MIA to STL?
Open the MIA to STL calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Miami to St. Louis route, and 2LNR will notify you when space opens. It's free to start.

Never miss MIA to STL upgrade or award space

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

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