Southwest Airlines flights were grounded nationwide. What we know.

There was a "computer issue."
By Mike Pearl  on 
Airline passengers at a Southwest gate with their lugggage.
Delayed passengers from another Southwest glitch a few months ago. Credit: Michael Ciaglo / Getty Images

Southwest Airlines departures all over the country were briefly halted on Tuesday due to a computer issue, causing significant disruptions at airports.

At a little after 11 a.m. ET, 36 percent(opens in a new tab) of Southwest's flights were paused, according to Leslie Josephs of CNBC. The pause ended not long after it was announced, but flight delays continued.

As of this writing, many Southwest flights were still not departing on time. Jennie Runevitch, a reporter for the local NBC affiliate in Indianapolis, noted that the departure board at her local airport showed that "most" Southwest flights were delayed by roughly an hour. The board in her photo, it should be noted, also showed some Southwest flights departing on time.

Southwest's statement(opens in a new tab) about the incident said the temporary delay was caused by "data connection issues resulting from a firewall failure." Southwest was plagued by similar delays over the holidays last year and earlier this year, which were at least partly caused by a glitch in its weather software(opens in a new tab).

Recommended For You

'Quordle' today: Here are the answers and hints for March 1

How ChatGPT could be changing poker

'A Disturbance in the Force' trailer unveils the secrets behind the 'Star Wars Holiday Special'

Trending on Mashable
Facebook likely owes you money. How to see if you're eligible.

'Wordle' today: Here's the answer, hints for April 19

'Wordle' today: Here's the answer, hints for April 18

This fake song from Drake and The Weeknd is AI-generated and scary good

National Weather Service accounts were not granted API exemptions by Twitter
The biggest stories of the day delivered to your inbox.
By signing up to the Mashable newsletter you agree to receive electronic communications from Mashable that may sometimes include advertisements or sponsored content.
Thanks for signing up. See you at your inbox!