$258 Cheap American Airlines flights Killeen (GRK) to Miami (MIA)

Apply the “Price (lowest to highest)” filter on Expedia to look for cheap American Airlines round-trip flights from $437 from GRK to MIA. Affordable one-way options from $258 are also available.**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 cheapest months to jet away to Miami with American Airlines. You could also find excellent prices on return and one-way tickets in October.

Look for cheap American Airlines flights from Killeen-Fort Hood Regional Airport (GRK) to Miami Intl. Airport (MIA) one to three months before your departure date. 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 type and journey, the best day 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.

Click on our “Nonstop” filter when looking for direct American Airlines flights from GRK to MIA. You’ll also be able to compare other carriers servicing the same direct trip.

Sort your results by “Early Morning” and “Morning” to browse the earliest flights from GRK to MIA. Taking off early means flight cancellations are less likely.**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.

American Airlines flights from Killeen-Fort Hood Regional Airport (GRK) to Miami come in to Miami Intl. Airport (MIA). This is the main gateway here.

Changes are generally free within 24 hours of making your booking, but your airline may charge you after that. For more information about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to adjust your plans without additional costs, check the “Changes included” or “No cancel fee” filter when planning your next break.