It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
To save up to 96% on this flight, we recommend booking at least 31 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Harlingen to St Louis from $374 1-2 weeks out and tickets from $553 for flights departing within the next 72 hours.
The best pricing can be found in the month of August. Prices to St Louis from Harlingen average $266. You can even find prices in August for less than $266, as users have found deals to St Louis from as low as $158. The month of December appears to be one of the more expensive times to travel to St Louis from Harlingen. Flying in the targeted month can save you up to 23%.
Unlike at noon, when flights are generally more expensive, you can save up to 23% on flights from Harlingen to St Louis by exploring options for tickets in the morning.
|Afternoon Noon to 6 PM||100% of HRL to STL departures|
|Early morning Midnight to 6 AM||0% of HRL to STL departures|
|Morning 6 AM to noon||0% of HRL to STL departures|
|Evening 6 PM to midnight||0% of HRL to STL departures|