Airlines are prepping for millions of travelers over Labor Day weekend. United Airlines expects to fly nearly 3.5 million passengers between Sept. 3 and Sept.

Airlines are prepping for millions of travelers over Labor Day weekend. United Airlines expects to fly nearly 3.5 million passengers between Sept. 3 and Sept. 8. [▻](https://video.twimg.com/ext_tw_video/2091956368224006144/pu/vid/avc1/720x1280/zEQni8eKsZRZoEAp.mp4)