Cheap flights to St. Louis, MO
Search 5 airlines flying nonstop to St. Louis. Fares shown include taxes and our service fee.
Deals to St. Louis
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*All fares in USD and shown per person, one way. They are typical fares based on historical data (2025 Q2 (Apr-Jun 2025); dataset as of 2026-11-11), include taxes and fees, and are not guaranteed. Prices change often, so the fare at booking may differ. See our taxes & fees, service fees and terms and conditions.
Airlines flying to St. Louis
Planning a trip to St. Louis?
St. Louis is served by one airport: St. Louis Lambert International Airport (STL). Comparing both can reveal cheaper days and shorter trips.
Prefer to talk it through? Call +1-800-000-0000 for help with dates, bags and changes.
Frequently asked questions
Which airlines fly to St. Louis?+
American Airlines, Delta Air Lines, United Airlines, Southwest Airlines, Frontier Airlines operate nonstop service to or from St. Louis, based on our route data (BTS Marketing Carrier On-Time (to 2026-08-31) and Southwest official route map).
Which airports serve St. Louis?+
St. Louis Lambert International Airport (STL).
How much is a typical flight to St. Louis?+
Among sampled fares, one of the lowest typical one-way fares is $77.41 from Denver. Fares are historical averages (2025 Q2 (Apr-Jun 2025)) and change often, so check live pricing before booking.
Can I talk to someone before I book?+
Yes. Call +1-800-000-0000 any time of day and an agent will help.