Cheap flights from St. Louis (STL) to Kaua'i from $540

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Kaua'i. Flights to Kaua'i from St. Louis in November are about $770 on average during November, but can be found for as low as $407.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Kaua'i as you normally would.

Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Kaua'i.

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, United Airlines, and Delta flying from Lambert-St Louis to Kaua'i have implemented new flexible cancellation policies.

Yes, there are multiple flights from St. Louis to Kaua'i for under $600. The cheapest flight booked recently is on American Airlines for just $540, but on average you can expect to pay $659.

The most popular airlines flying from St. Louis to Kaua'i are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

Looking at all options, your cheapest flight can be booked for $383. While the most popular route (Lambert-St Louis - Lihue) can be booked for $583 on average our data indicates $1,501 when flying from St. Louis to Kaua'i.

STL and LIH are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to LIH refers to a flight route from Lambert-St Louis Airport to Lihue Airport.