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.

The outage began just after 6 p.m. ET and was resolved a few hours later, though delays are expected to continue into the night.

United Airlines flights at San Francisco International Airport (SFO) were grounded Wednesday evening due to a “technology issue,” the airline said in a statement. As of 6:20 p.m., the ground stops for United flights have been lifted,