Maintenance on an air conditioning unit inside Terminal 4 at Phoenix Sky Harbor International Airport on Wednesday morning resulted in long wait times at security checkpoints for travelers.

PHOENIX — Phoenix Sky Harbor International Airport says a planned air-conditioning outage impacted the airport Wednesday morning ahead of record-breaking heat.

An air conditioning unit in Terminal 4 of the Phoenix Sky Harbor Airport was deactivated for routine maintenance and stayed off longer than expected.

An air conditioning unit in Terminal 4 of the Phoenix Sky Harbor Airport was deactivated for routine maintenance and stayed off longer than expected.

An air conditioning unit in Terminal 4 of the Phoenix Sky Harbor Airport was deactivated for routine maintenance and stayed off longer than expected.

An air conditioning unit in Terminal 4 of the Phoenix Sky Harbor Airport was deactivated for routine maintenance and stayed off longer than expected.

An air conditioning unit in Terminal 4 of the Phoenix Sky Harbor Airport was deactivated for routine maintenance and stayed off longer than expected.

A Washington Post ranking of the top 50 U.S. airports failed to mention Phoenix Sky Harbor International Airport, which seems like a big oversight.

You don't have to drive yourself and pay to park next time you fly out of Phoenix Sky Harbor Airport. Try these options and leave your car at home.

Uber and Lyft can pick you up and drop you off at Phoenix Sky Harbor Airport. Taxis offer a flat rate to downtown Phoenix. Valley Metro light rail and bus routes connect to the airport's free PHX ...