Wednesday flights are generally found to be more expensive for flights from St Louis to Harlingen. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Harlingen.
When flying from St Louis to Harlingen, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 37% versus a flight in the afternoon.