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Southwest Airlines serves Jacksonville International Airport (JAX) with nonstop flights from Baltimore, Chicago Midway, Houston Hobby, Nashville, Denver, Dallas Love Field, St. Louis, and other cities across its network. JAX sits about 15 miles north of downtown Jacksonville, and Southwest operates from Concourse C with gates C1, C2, and C4.
Cheapest Months to Travel
Late January through February and the September to October window usually have the cheapest fares. Jacksonville's summer is hot and humid, which actually keeps some travelers away and can bring prices down from June through August too.
Peak Travel Seasons to Avoid
Spring break (March through April) and major event weekends like the Florida-Georgia football game in late October drive prices up. December holidays also see higher fares.
Best Time to Book
Book 4 to 8 weeks ahead for the best balance of price and availability. Southwest's no-change-fee policy means you can rebook if fares drop.
Midweek Advantage
Tuesdays and Wednesdays consistently offer the lowest fares on this route. Weekend flights, especially Fridays, tend to run $30 to $60 more.
Time Zone Info
Jacksonville is on Eastern Time (ET). Travelers from Central Time cities like Dallas or Houston gain 1 hour on arrival. From Denver, you gain 2 hours.