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RDU STL · 666 mi · 2h 00m

Raleigh-Durham to St. Louis Flights

Everything you need to know about the RDU → STL domestic route — flight time, airlines, fares, and booking tips. Track your flight in real time with TripTrack.

$80-$190 round trip · 15+ daily flights · Updated March 2026


✈️ Route Overview

Key facts for the Raleigh-Durham to St. Louis route

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Distance
666 miles (1,072 km)
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Avg Flight Time
2h 00m
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Timezone Change
-1 hour
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Daily Flights
15+
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Typical Fare
$80-$190 round trip
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Red-Eye Available
No overnight flights on this route

🛫 Airlines on This Route

Carriers operating RDU → STL flights

Airline Notes
Delta SkyMiles frequent flyer program
American Airlines AAdvantage frequent flyer program
United MileagePlus frequent flyer program
Southwest Rapid Rewards — bags fly free
Alaska Airlines Mileage Plan — generous earning rates
JetBlue TrueBlue — free snacks, above-average legroom

💡 Booking Tips

How to get the best deal on Raleigh-Durham to St. Louis flights

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Best Days to Fly

Tuesday and Thursday tend to have lower demand and better fares

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Fare Range

$80-$190 round trip. Book 3–6 weeks in advance for domestic routes, 2–3 months for international.

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Red-Eye Flights

✗ Not available

No overnight options on this route — plan for daytime travel.

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Track Your Flight

Once booked, TripTrack automatically imports your flight from your confirmation email. Real-time gate changes and delay alerts — no manual entry needed.


🧳 Travel Tips for This Route

Practical advice from frequent travelers on the RDU → STL route

  • 1 Avoid checking bags to save time and fees on short hops.
  • 2 Midweek flights are typically less crowded and cheaper.


📱 Real-Time Flight Tracking

Track Your RDU → STL Flight — Automatically

TripTrack monitors your flight in real time — gate changes, delays, and departure updates sent to your phone the moment they happen. Connect your Gmail once and your trips appear automatically. No manual entry.


Frequently Asked Questions — Raleigh-Durham to St. Louis Flights

How long is the flight from Raleigh-Durham to St. Louis?

The average flight time from Raleigh-Durham (RDU) to St. Louis (STL) is 2h 00m. This is an estimate including taxi, climb, and descent time — actual flight time may vary based on winds and routing.

Which airlines fly from Raleigh-Durham to St. Louis?

Airlines operating the RDU to STL route include Delta, American Airlines, United and 3 more. Check each airline's website for current schedules and availability.

How far is Raleigh-Durham from St. Louis?

The great-circle distance from Raleigh-Durham to St. Louis is 666 miles (1,072 km). This is the straight-line distance — actual flight paths may be slightly longer.

What are the cheapest days to fly from Raleigh-Durham to St. Louis?

Tuesday and Thursday tend to have lower demand and better fares. Fares on this route typically range $80-$190 round trip.

Is there a time zone change flying from Raleigh-Durham to St. Louis?

Yes — there is a -1 hour when flying from Raleigh-Durham to St. Louis. TripTrack automatically shows local times for both your departure and arrival airports.

Are there red-eye flights from Raleigh-Durham to St. Louis?

No, there are currently no overnight (red-eye) flights on the RDU to STL route. All flights operate during daytime hours.

How can I track my Raleigh-Durham to St. Louis flight in real time?

TripTrack automatically tracks your RDU to STL flight — showing real-time gate changes, delays, and departure updates. Connect your Gmail once and your booking confirmation is imported automatically. Available free on iOS and Android.