Cheap Flights To St. Louis

Finding Cheap Flights To St. Louis

St. Louis is served by St. Louis Lambert International Airport (STL), a major Midwestern hub with a strong domestic arrival network and select international service. While no longer a primary hub for a legacy carrier, STL offers a wide variety of nonstop arrivals from destinations across the United States into STL, providing competitive options for both business and leisure travelers.

Top domestic arrival routes to St. Louis (STL) include frequent and often affordable service from major cities and airline hubs. Key departure points include Atlanta (ATL), Dallas/Fort Worth (DFW), Chicago (ORD/MDW), Denver (DEN), Las Vegas (LAS), Phoenix (PHX), Charlotte (CLT), and Orlando (MCO) into STL. STL also offers nonstop arrivals from several international destinations in Mexico and the Caribbean into St. Louis, along with seasonal service from Canada.

The airport for arrivals into St. Louis is served by a diverse mix of airlines, including Southwest Airlines (which maintains a major focus city operation at STL for incoming flights), American Airlines, Delta Air Lines, and United Airlines. The strong presence of Southwest provides significant low-fare competition on many arrival routes into STL, particularly from other focus cities and leisure destinations.

To find cheap flights to St. Louis, book domestic arrivals 3-5 weeks in advance into STL and international arrival routes 2-3 months ahead. Leverage Southwest's extensive arrival network into STL, but always compare their prices (including checked bag policies) with the major legacy carriers for flights into St. Louis. Flying into STL on Tuesday, Wednesday, or Saturday typically offers the lowest fares. For international arrivals from beyond Mexico and the Caribbean into St. Louis, be prepared for a connection, and compare through-fares into STL with potential drive-and-fly options from other major hubs — flying into Chicago or Dallas first on a competitive long-haul route, then taking a domestic flight to St. Louis, may be cheaper.

Flight deals from Vancouver, Canada to St. Louis, USA | Secret Flying

June 1, 2026

SUMMER: Business Class from Nairobi, Kenya to St. Louis or Tampa, USA from only $1541 USD roundtrip (Mar-Oct dates) (lie-flat seats)

Business Class, summer flights from Nairobi, Kenya to St. Louis or Tampa, USA from only $1541 USD roundtrip with British Airways and American Airlines.

Cheap Flights To St. Louis

Finding Cheap Flights To St. Louis

Vancouver, Canada to St. Louis, USA for only $363 CAD roundtrip

St. Louis to Kona, Hawaii (& vice versa) for only $444 roundtrip

St. Louis to Lihue, Hawaii (& vice versa) for only $444 roundtrip

Non-stop from Seattle to St. Louis (& vice versa) for only $147 roundtrip

Sydney, Australia to US cities from only $1174 AUD roundtrip

Aguadilla, Puerto Rico to St. Louis, USA for only $264 USD roundtrip

Non-stop from Los Angeles to St. Louis (& vice versa) for only $153 roundtrip

SUMMER: Non-stop from Phoenix, Arizona to St. Louis (& vice versa) for only $141 roundtrip

SUMMER: Business Class from Nairobi, Kenya to St. Louis or Tampa, USA from only $1541 USD roundtrip (Mar-Oct dates) (lie-flat seats)