American Airlines, other airlines add new routes to Austin, Texas By Lauren Reid AUSTIN, Texas - Has COVID left you with a desire to travel? American Airlines, the largest airline in Texas, is going to make it easier for you to travel by adding 10 new, returning, and seasonal routes to Austin. American Airlines said in a press release that it plans to introduce seven year-round and three seasonal routes to Austin in response to customer demand. American is also introducing four new codeshare routes with West Coast International Alliance partner Alaska Airlines for flights beginning May 6. The new Austin service and new codeshare routes will be available for purchase starting March 15, according to the press release.