Direct (nonstop) flights from Jacksonville to Saint Louis
1 airline flys nonstop from Jacksonville International (JAX) to Saint Louis Airport (STL). It's 754 miles (1,213 km), about 2h 10m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 31, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Jacksonville to Saint Louis with one stop · direct emits 139 kg CO₂ per passenger
Looking for the return flight?
STL → JAX: Flights from Saint Louis to JacksonvilleOther direct flights from Jacksonville
Direct flights from Saint Louis (STL)
Frequently Asked Questions
How long is the direct flight from Jacksonville to Saint Louis?
A nonstop flight from Jacksonville (JAX) to Saint Louis (STL) takes approximately 2 hours and 10 minutes. The distance is 754 miles (1,213 km).
Which airlines fly nonstop from Jacksonville to Saint Louis?
Just Southwest Airlines.
Is there a nonstop flight from Jacksonville to Saint Louis?
Yes. 1 airline: Southwest Airlines.
How far is Jacksonville from Saint Louis?
The flight distance from Jacksonville to Saint Louis is 754 miles (1,213 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as the length of Italy.
What type of aircraft flies from Jacksonville to Saint Louis?
At 2h 10m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Jacksonville to Saint Louis?
Roughly 139 kg CO2 per passenger one-way. That's about the same as driving 695 km.
Is the return flight from Saint Louis to Jacksonville also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Jacksonville to Saint Louis?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Jacksonville International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.