Southwest now offering TSA PreCheck for international flights

Posted on August 12, 2016 by in Known Traveler Number, Southwest Rapid Rewards, Travel Deals

TSA PreCheck

Southwest Airlines is now offering TSA Pre✓ on international itineraries

If you’re tired of waiting in those long airport security lines for a Southwest flight and have paid for the PreCheck service, you’ll be happy to know that it looks like the airline is now offering TSA Pre✓ on international itineraries, as shown on this official facebook post:

TSA PreCheck

Readers and FlyerTalkers report now being able to add your Known Traveler Number over the phone with Southwest Airlines, but the site’s FAQ has also been updated; it now says that any reservation booked on, or Southwest Vacations allows entry of a KTN.

How to add your Known Traveler Number

You can add your Known Traveler Number to an international reservation by calling Southwest Reservations on 1-800-435-9792, by contacting Southwest Customer Relations or you can try adding it online to your Rapid Rewards frequent flyer profile.


This FlyerTalker recently had issues when traveling from LA to Costa Rica. After being told at check-in that the family’s Known Traveler Numbers would be added, most of the family were then turned away from the PreCheck lane, so it seems that Southwest has teething problems with TSA Pre✓ right now…