$55 Cheap Flights from St. Louis (STL) to Raleigh (RDU)

View $55 flight on Mon, Nov 17, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Raleigh-Durham International Airport (RDU)

Cheap Flights from St. Louis to Raleigh (STL-RDU)

Prices were available within the past 7 days and start at $55 for one-way flights and $110 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Dec 4 - Mon, Dec 8
STL
St. Louis
RDU
Raleigh
$110 Roundtrip, found 1 hour ago
$110
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Dec 4 from St. Louis to Raleigh, returning Mon, Dec 8, priced at $110 found 1 hour ago
Frontier Airlines
Wed, Jan 28 - Thu, Jan 29
STL
St. Louis
RDU
Raleigh
$120 Roundtrip, just found
$120
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jan 28 from St. Louis to Raleigh, returning Thu, Jan 29, priced at $120 just found
Frontier Airlines
Thu, Dec 11 - Sun, Dec 14
STL
St. Louis
RDU
Raleigh
$124 Roundtrip, found 13 hours ago
$124
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from St. Louis to Raleigh, returning Sun, Dec 14, priced at $124 found 13 hours ago
Frontier Airlines
Wed, Nov 19 - Sun, Nov 23
STL
St. Louis
RDU
Raleigh
$127 Roundtrip, found 16 hours ago
$127
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Wed, Nov 19 from St. Louis to Raleigh, returning Sun, Nov 23, priced at $127 found 16 hours ago
Frontier Airlines
Fri, Dec 12 - Mon, Dec 15
STL
St. Louis
RDU
Raleigh
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Dec 12 from St. Louis to Raleigh, returning Mon, Dec 15, priced at $128 just found
Frontier Airlines
Wed, Jan 28 - Fri, Jan 30
STL
St. Louis
RDU
Raleigh
$134 Roundtrip, just found
$134
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jan 28 from St. Louis to Raleigh, returning Fri, Jan 30, priced at $134 just found
American Airlines
Thu, Dec 11 - Sun, Dec 14
STL
St. Louis
RDU
Raleigh
$159 Roundtrip, found 13 hours ago
$159
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Thu, Dec 11 from St. Louis to Raleigh, returning Sun, Dec 14, priced at $159 found 13 hours ago
Spirit Airlines
Sat, Nov 22 - Thu, Nov 27
STL
St. Louis
RDU
Raleigh
$167 Roundtrip, just found
$167
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Nov 22 from St. Louis to Raleigh, returning Thu, Nov 27, priced at $167 just found
Southwest Airlines
Thu, Dec 4 - Mon, Dec 8
STL
St. Louis
RDU
Raleigh
$301 Roundtrip, found 1 hour ago
$301
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Thu, Dec 4 from St. Louis to Raleigh, returning Mon, Dec 8, priced at $301 found 1 hour ago
United
Tue, Dec 2 - Wed, Dec 3
STL
St. Louis
RDU
Raleigh
$311 Roundtrip, just found
$311
Roundtrip
just found
Select United flight, departing Tue, Dec 2 from St. Louis to Raleigh, returning Wed, Dec 3, priced at $311 just found

Find the cheapest month to fly from St. Louis (STL) to Raleigh (RDU)

October is typically the cheapest month to fly

From $146 - $364 per traveler.

Alternative airports near Raleigh

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Raleigh - Durham Intl. RDU. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $312
RDU
Raleigh - Durham Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $312
Flights from St. Louis (STL) to Raleigh (RDU)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Raleigh - Durham Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$110
Distance
665 mi
Average flight time
2 hours 46 mins

St. Louis to Raleigh Flights

The cheapest times to fly from St. Louis to Raleigh

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Raleigh are during the month of December. You can find some of the cheapest flights from St. Louis to Raleigh with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Raleigh

Sunday is one of the best days to book for cheap flights from St. Louis to Raleigh: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Raleigh

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Raleigh in 2025. You can also book with separate airlines for your outbound and return journeys, from $55 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Raleigh flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Raleigh airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU) cost?
Grab a cheap one-way flight from $55 or cheap return flight from $110 from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
December is the least expensive month to fly from STL to RDU. Timing your trip outside of the busy season is often the key to finding better fares.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
Catch a direct flight with Southwest Airlines and journey straight from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU).
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to RDU flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
On average, there's only 1 direct flight operating from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU) per day. If this doesn't fit your plans, think about flights with a layover. Simply filter your search on Expedia to include one or two stops to find a better alternative.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
More passengers fly between STL and RDU at 6 PM than at any other time. Looking for a quieter experience? Pick a flight outside the busiest times and there's a chance you'll save on your fare as well.
What day of the week has the most flights from STL to RDU?
Travel on a Friday if you're after the best choice of flights from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU).
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
The earliest flight jetting off from Lambert-St. Louis Intl. Airport (STL) is at around 3:10PM UTC-6. Catch this flight and you'll reach Raleigh - Durham Intl. Airport (RDU) at approximately 5:55PM UTC-5. The overall travel time is 1h 45m.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
The average flight time from STL to RDU is 1 hour and 48 minutes, covering a total distance of 670 mi.
What airline has the least delays from STL to RDU?
Consider traveling with American Airlines if you'd like to go straight from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU) without any interruptions. This airline has the strongest track record for punctuality, with an on-time score of 100%. Want to get notified of any changes? You can check your flight status using the Expedia App.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU) route, aim to fly before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Raleigh from Lambert-St. Louis Intl. Airport (STL)?
Raleigh - Durham Intl. Airport (RDU) is the only airport in Raleigh with direct flights from Lambert-St. Louis Intl. Airport (STL). Compare the available options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU) last-minute?
Holding off until right before your break to book a ticket from STL to RDU generally means paying more. While you may come across some last-minute discounts, there's no guarantee. Be flexible with your itinerary to boost your chances of scoring a bargain.
Is it cheaper to book a STL to RDU flight and hotel package?
Opting for a STL to RDU flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our wide range of stays and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Raleigh - Durham Intl. Airport (RDU)?
You can usually reschedule or cancel your STL to RDU flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.