For now, if you're a passenger who's been affected by the delays, it seems your best bet is to reach out to United on X via DMs with your confirmation number and email address for assistance. You can also head to United's website to use the chatbot or call an agent, or you can text "UNITED" to 32050 for United Customer Service.

United Airlines flights on major routes were grounded Wednesday because of a technology issue, and additional flight delays were expected into the evening, the airline said.

The United ground stop has been lifted at airports in multiple cities as the airline resolved a technical issue. There are still residual delays.