Cheap Flights From Raleigh - Durham Intl. (RDU) To Lambert-St. Louis Intl. (STL)

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Cheapest Flights from Raleigh (RDU) to St. Louis (STL)

The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were CA $486 round trip and CA $328 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Dec 25 - Thu, Jan 1
RDU
Raleigh
STL
St. Louis
CA $486 Roundtrip, found 12 hours ago
CA $486
Roundtrip
found 12 hours ago
Select Delta flight, departing Thu, Dec 25 from Raleigh to St. Louis, returning Thu, Jan 1, priced at CA $486 found 12 hours ago
Wed, Dec 24 - Tue, Dec 30
RDU
Raleigh
STL
St. Louis
CA $521 Roundtrip, found 12 hours ago
CA $521
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Dec 24 from Raleigh to St. Louis, returning Tue, Dec 30, priced at CA $521 found 12 hours ago
Tue, Dec 23 - Tue, Dec 30
RDU
Raleigh
STL
St. Louis
CA $554 Roundtrip, found 12 hours ago
CA $554
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Tue, Dec 23 from Raleigh to St. Louis, returning Tue, Dec 30, priced at CA $554 found 12 hours ago
Sun, Dec 28 - Thu, Jan 1
RDU
Raleigh
STL
St. Louis
CA $555 Roundtrip, found 12 hours ago
CA $555
Roundtrip
found 12 hours ago
Select Delta flight, departing Sun, Dec 28 from Raleigh to St. Louis, returning Thu, Jan 1, priced at CA $555 found 12 hours ago
Fri, Dec 26 - Tue, Dec 30
RDU
Raleigh
STL
St. Louis
CA $564 Roundtrip, found 12 hours ago
CA $564
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Dec 26 from Raleigh to St. Louis, returning Tue, Dec 30, priced at CA $564 found 12 hours ago
Thu, Dec 25 - Mon, Dec 29
RDU
Raleigh
STL
St. Louis
CA $570 Roundtrip, found 12 hours ago
CA $570
Roundtrip
found 12 hours ago
Select Delta flight, departing Thu, Dec 25 from Raleigh to St. Louis, returning Mon, Dec 29, priced at CA $570 found 12 hours ago
Fri, Dec 26 - Tue, Dec 30
RDU
Raleigh
STL
St. Louis
CA $596 Roundtrip, found 12 hours ago
CA $596
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Fri, Dec 26 from Raleigh to St. Louis, returning Tue, Dec 30, priced at CA $596 found 12 hours ago
Fri, Dec 26 - Tue, Dec 30
RDU
Raleigh
STL
St. Louis
CA $598 Roundtrip, found 12 hours ago
CA $598
Roundtrip
found 12 hours ago
Select United flight, departing Fri, Dec 26 from Raleigh to St. Louis, returning Tue, Dec 30, priced at CA $598 found 12 hours ago
Fri, Dec 26 - Tue, Dec 30
RDU
Raleigh
STL
St. Louis
CA $614 Roundtrip, found 12 hours ago
CA $614
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Dec 26 from Raleigh to St. Louis, returning Tue, Dec 30, priced at CA $614 found 12 hours ago
Sun, Dec 28 - Tue, Dec 30
RDU
Raleigh
STL
St. Louis
CA $625 Roundtrip, found 12 hours ago
CA $625
Roundtrip
found 12 hours ago
Select Delta flight, departing Sun, Dec 28 from Raleigh to St. Louis, returning Tue, Dec 30, priced at CA $625 found 12 hours ago

Frequently asked questions

Are there direct flights from RDU to Lambert-St. Louis Intl. Airport (STL)?
If you're not exactly fond of stopovers, it's a good idea to organize your flight from Raleigh - Durham Intl. Airport (RDU) to Lambert Field as early as possible. Southwest Airlines is the only carrier that offers nonstop flights on this route.
What airlines fly from RDU to STL?
With Southwest Airlines, you won't have to bother with long layovers or hanging about waiting for your connecting flight. This popular airline will fly you nonstop from Raleigh to St. Louis on one of the 26 flights servicing this route every month.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Raleigh (RDU)

Travelers at RDU love to visit these top cities. Roam to the top destinations from Raleigh (RDU) today with the cheap prices from Travelocity!

Popular Flight Routes from St. Louis (STL)

Travelers at STL love to visit these top cities. Roam to the top destinations from St. Louis(STL) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.