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

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.

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.

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.

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.