$131 Cheap United flights St. Louis (STL) to Tampa (TPA)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap United Airlines round-trip flights from $261 from STL to TPA. Affordable one-way tickets from $131 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

September is one of the most affordable months to fly to Tampa with United Airlines. You could also find excellent prices on one-way and round-trip fares in November.

Search for affordable United Airlines flights from Lambert-St. Louis Intl. Airport (STL) to Tampa Intl. Airport (TPA) one to three months prior to your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day of the week to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct route from STL to TPA with United Airlines or any other carriers, check the “Nonstop” box when searching for tickets.

To find the earliest departures from STL to TPA with United Airlines, filter your search by “Morning” and “Early Morning.” Booking an early flight generally means you’ll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Tampa Intl. Airport (TPA) is the primary Tampa gateway for United Airlines flights from Lambert-St. Louis Intl. Airport (STL).

A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to travel from STL to TPA with United Airlines. Plus, when you sign up to Expedia’s free One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the ticket type you purchased, a fee may apply if you change or cancel your flight more than 24 hours after confirmation. To find tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when searching for flights. To learn more about canceling or modifying your reservation, visit “Trips,” select your flight and click on “Manage Booking.”