Cheap Flights to St. Louis in 2026
Economy flights to St. Louis typically range from $300 to $1,400 round-trip, depending on your departure city and travel dates. Top carriers serving this route include Delta Air Lines, American Airlines, United Airlines. The best months to find cheap fares are generally outside the peak season (Jun-Aug).
Price Overview from Major US Cities
New York → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
2 hr 31 min (Direct)View Route
Los Angeles → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
3 hr 55 min (Direct)View Route
Chicago → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
1 hr 15 min (Direct)View Route
Miami → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
2 hr 53 min (Direct)View Route
San Francisco → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
4 hr 12 min (Direct)View Route
Boston → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
2 hr 50 min (Direct)View Route
Seattle → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
4 hr 9 min (Direct)View Route
Denver → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
2 hr 17 min (Direct)View Route
Washington D.C. → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
2 hr 8 min (Direct)View Route
Dallas → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
1 hr 50 min (Direct)View Route
Atlanta → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
1 hr 43 min (Direct)View Route
Houston → STL
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
2 hr 5 min (Direct)View Route
Top Airlines Flying to St. Louis
Best Time to Book
For international flights to St. Louis, airlines generally release their best economy fares 2-6 months prior to departure. Peak pricing usually occurs during Jun-Aug. If your dates are flexible, avoiding these peak periods will yield the cheapest flights.
St. Louis Quick Guide
Best Months to Visit
April through May and September through October for pleasant weather; fall colors along the Mississippi are beautiful
Currency
US Dollar (USD)
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