Route guide

New Orleans to St. Louis (MSY-STL): Nonstop Upgrade & Award Space

Southwest Airlines flies the MSY to STL nonstop about 6 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every MSY to STL departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

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

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6
Nonstop flights a week
605 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every MSY 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 New Orleans 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 MSY 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 MSY to STL on the interactive route map, with schedules, connections, and route statistics.

Airlines flying New Orleans to St. Louis nonstop

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

  • Southwest Airlines
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Frequently asked questions about MSY to STL

How far is St. Louis from New Orleans?
MSY to STL covers about 605 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from MSY to STL?
Southwest Airlines is currently the only airline flying MSY to STL nonstop. 2LNR tracks confirmed upgrade and award space on every Southwest Airlines departure.
How many flights a week are there from MSY to STL?
About 6 nonstop flights a week run between New Orleans and St. Louis in the current schedule, operated by 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 MSY to STL?
Open the MSY to STL calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the New Orleans to St. Louis route, and 2LNR will notify you when space opens. It's free to start.

Never miss MSY 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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