$142 Cheap American Airlines flights Kansas City (MCI) to San Antonio (SAT)

Finding cheap one-way American Airlines flights from MCI to SAT from $142 on Expedia is easy — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $283 for your next break.**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.

Look for affordable American Airlines flights from Kansas City Intl. Airport (MCI) to San Antonio Intl. Airport (SAT) one to three months ahead of your departure day. 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. No matter the fare class and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive is typically 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.

Sort your results by "Early Morning" and "Morning" to see the earliest departures from MCI to SAT. Heading off early means you're less likely to experience 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.