Cheap Flights from St Louis to Raleigh / Durham

Compare St Louis to Raleigh / Durham flight deals

Find the cheapest month or even day of the year to fly to Raleigh / Durham

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Flight deals from St Louis to Raleigh / Durham

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Raleigh / Durham Airport? If you want to travel next month, return fares start from Rs37,844. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Raleigh / Durham

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Raleigh / Durham flights are currently cheapest in September.

Direct flights from St Louis to Raleigh / Durham

St Louis to Raleigh / Durham: Alternative routes

Compare routes from St Louis to Durham below. You may find an airport to fly into that's cheaper, faster, or easier than Raleigh / Durham.

St Louis to Durham: Flight information

The things to know before you go.
Cheapest flight foundRs19,116
Cheapest month to flySeptember
Average flight time1 hr, 50 mins
Most popular airlineSouthwest Airlines
Average flights per week17

Finding cheap flights from St Louis to Raleigh / Durham: Frequently asked questions

The best price we found for a return flight from St Louis to Raleigh / Durham is Rs37,844. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 50 minutes is the average flight time from St Louis to Raleigh / Durham.
Southwest Airlines flies direct from St Louis to Raleigh / Durham.
As of July 2026, there are 17 flights per week flying from St Louis to Raleigh / Durham.
The cheapest month to fly from St Louis to Raleigh / Durham is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Raleigh / Durham Airport on Thursday, 20 August 2026.
Yes – the average flight time is 1 hour and 50 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Raleigh / Durham but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Durham is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to Raleigh / Durham.

Travelling from St Louis Airport (STL) to Raleigh / Durham Airport (RDU): what you need to know

  • The average time for a direct flight from St Louis Airport to Raleigh / Durham Airport is 1 hour 50 minutes.

  • Durham is one hour ahead of St Louis and observes the UTC-5 timezone.

  • Take your pick of eight weekly St Louis Airport to Raleigh / Durham Airport flights. The 07:20 departure with Southwest Airlines is the earliest flight available. Southwest Airlines operates the last service of the day at 21:40.

  • Leave enough time to catch your STL to RDU flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for bigger queues during popular months like July. Arriving up to four hours ahead of international flights and two hours for domestic departures is a smart move.

  • Jetting into Durham (and then seeing more of the United States!) is a breeze with Southwest Airlines. This popular carrier has direct flights from St Louis Airport to Raleigh / Durham Airport.

  • Most passengers choose to fly with Southwest Airlines on this route.

  • With 79.28% of services arriving as planned, Southwest Airlines is the most punctual carrier operating STL to RDU flights.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from St Louis Airport to Raleigh / Durham Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to explore your chosen city. Stopovers between STL and RDU include:

    • Charlotte Douglas Airport

    • Nashville Airport

    • Chicago Midway Airport

How to find the cheapest flights from St Louis Airport (STL) to Raleigh / Durham Airport (RDU)

  • Rs19,116 is currently the best price for a one-way St Louis Airport to Raleigh / Durham Airport flight. A return flight starts from Rs37,857. These prices may change based on demand.

  • To pick up cheap tickets from STL to RDU, book your trip four months ahead of your departure.

  • The cheapest month for flights from St Louis Airport to Raleigh / Durham Airport is September. Use the 'Whole month' tool to see the lowest airfares if you have a flexible travel schedule.

  • Snapping up cheap flights from STL to RDU is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll notify you as soon as a lower fare pops up.

  • Pick your ideal departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from St Louis Airport to Raleigh / Durham Airport.

Handy information about St Louis Airport (STL)

Arriving at Raleigh / Durham Airport (RDU)

Getting from Raleigh / Durham Airport (RDU) to central Durham

  • Raleigh / Durham Airport to the centre of Durham has a drive time of about 20 minutes. It's approximately 18 kilometres away.

  • It'll take around 45 minutes if you're travelling on public transport.

When to fly to Raleigh / Durham Airport (RDU)

  • July is the most popular month for flights from St Louis Airport to Raleigh / Durham Airport. For smaller crowds, visit Durham in March.

  • Lock in your flight from St Louis Airport to Raleigh / Durham Airport for July if you'd like to explore Durham during its warmest month. You can expect temperatures of between 19ºC and 33ºC.

  • Search for cheap tickets from STL to RDU in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -3ºC and 13ºC on average.

Explore more of the United States

  • Durham has plenty to offer, but there are so many other corners of the United States you should also see. About 193 kilometres south-west of Durham, a visit to Charlotte will keep you on the move. Start with leading attractions like Bechtler Museum of Modern Art, Discovery Place and NASCAR Hall of Fame.

  • If you're looking to explore another major stop in the United States, consider Baltimore, about 418 kilometres north-east of Durham. National Aquarium, Baltimore Aquarium and Washington Monument and Mount Vernon Place are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.