Direct (nonstop) flights from Raleigh/Durham to Saint Louis

1 airline flys nonstop from Raleigh–Durham Airport (RDU) to Saint Louis Airport (STL). It's 667 miles (1,074 km), about 2h 5m in the air. Operated by Southwest Airlines.

RDU
Raleigh–Durham Airport
🇺🇸 Raleigh/Durham, USA
STL
Saint Louis Airport
🇺🇸 Saint Louis, USA
Flight Time
2h 5m
Distance
667 mi
1,074 km
CO₂/pax
124 kg
−33 kg vs. layover
Airlines
1
Southwest Airlines
Time Diff
-1h
Operated by Southwest Airlines Southwest Airlines

Route data last updated: May 29, 2026

Airlines with non-stop flights

Southwest Airlines WN Southwest Airlines
Route
RDU → STL
Flight Time
2h 5m
Distance
667 mi

Alternative Routes

Other ways to fly from Raleigh/Durham to Saint Louis with one stop · direct emits 124 kg CO₂ per passenger

RDU IND (Indianapolis) STL
Leg 1: 1h 53m (488 mi) Leg 2: 1h (229 mi) Total: ~2h 53m 🍃 157 kg CO₂ (+27% vs. direct)
Leg 1
RDU → IND
1h 53m · 488 mi
View RDU to IND flights →
Leg 2
IND → STL
1h · 229 mi
View IND to STL flights →
RDU CMH (Columbus) STL
Leg 1: 1h 28m (362 mi) Leg 2: 1h 30m (410 mi) Total: ~2h 58m 🍃 168 kg CO₂ (+35% vs. direct)
Leg 1
RDU → CMH
1h 28m · 362 mi
View RDU to CMH flights →
Leg 2
CMH → STL
1h 30m · 410 mi
View CMH to STL flights →
RDU BNA (Nashville) STL
Leg 1: 1h 45m (441 mi) Leg 2: 1h 15m (272 mi) Total: ~3h 🍃 157 kg CO₂ (+27% vs. direct)
Leg 1
RDU → BNA
1h 45m · 441 mi
View RDU to BNA flights →
Leg 2
BNA → STL
1h 15m · 272 mi
View BNA to STL flights →
RDU PIT (Pittsburgh) STL
Leg 1: 1h 27m (328 mi) Leg 2: 1h 45m (552 mi) Total: ~3h 12m 🍃 188 kg CO₂ (+52% vs. direct)
Leg 1
RDU → PIT
1h 27m · 328 mi
View RDU to PIT flights →
Leg 2
PIT → STL
1h 45m · 552 mi
View PIT to STL flights →
RDU ATL (Atlanta) STL
Leg 1: 1h 33m (356 mi) Leg 2: 1h 42m (483 mi) Total: ~3h 15m 🍃 180 kg CO₂ (+45% vs. direct)
Leg 1
RDU → ATL
1h 33m · 356 mi
View RDU to ATL flights →
Leg 2
ATL → STL
1h 42m · 483 mi
View ATL to STL flights →

Frequently Asked Questions

How long is the direct flight from Raleigh/Durham to Saint Louis?

A nonstop flight from Raleigh/Durham (RDU) to Saint Louis (STL) takes approximately 2 hours and 5 minutes. The distance is 667 miles (1,074 km).

Which airlines fly nonstop from Raleigh/Durham to Saint Louis?

Just Southwest Airlines.

Is there a nonstop flight from Raleigh/Durham to Saint Louis?

Yes. 1 airline: Southwest Airlines.

How far is Raleigh/Durham from Saint Louis?

The flight distance from Raleigh/Durham to Saint Louis is 667 miles (1,074 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 Raleigh/Durham to Saint Louis?

At 2h 5m, 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 Raleigh/Durham to Saint Louis?

Roughly 124 kg CO2 per passenger one-way. That's about the same as driving 620 km.

Is the return flight from Saint Louis to Raleigh/Durham 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 Raleigh/Durham 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 Raleigh–Durham Airport for this flight?

1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.