How often are MSP to STL flights on time?

Flights from Minneapolis (MSP) to St. Louis (STL) arrive on time 86% of the time across 11,681 flights of official data.

Which airline is most reliable on the MSP to STL route?

Delta Air Lines has the best on-time record on this route at 87% across 8,676 flights.

Route reliability

Flights from Minneapolis to St. Louis arrive on time 86% of the time across 11,681 flights. Here’s how each airline really performs.

0.0

On-time rate

11,681 flights

Airline	On-time	Flights
Delta Air Lines	87%	8,676
Southwest Airlines	86%	3,005

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg STL → MSP.

How to Pick a Reliable Flight (Not Just the Cheapest)

A practical checklist for booking the flight that gets you there — not just the cheap one.

Nonstop vs. Connecting Flights: The Reliability Trade-off

A stop multiplies the ways a trip can break. When it's worth it — and how to de-risk it.

Do Morning Flights Really Have Fewer Delays?

Yes — and there's a clear reason. How delays snowball through the day.

Are Some Airlines Really More Reliable Than Others?

The reliability gap between airlines is real — here's what actually drives it.

Score real MSP–STL flights on reliability, weather, and connection safety — not just price.