Threats made over social media delayed travelers on board two planes that had departed Sunday from Southern California airports.
Delta Airlines Flight 1061, a nonstop flight from Los Angeles International Airport to Orlando, was grounded in Dallas because of "a security concern," said airline spokesman Morgan Durrant.
After touching down at Dallas-Fort Worth International Airport about 3:30 p.m., the Boeing 737 underwent a security sweep, Durrant said. All of the nearly 180 passengers and six crew members were also screened.
No security threats were located on board, and the plane resumed its trip to Orlando at 7:22 p.m.
At Seattle-Tacoma International Airport, a "security situation" prompted a JetBlue flight from Long Beach to undergo a security sweep after the plane landed as scheduled, said JetBlue Airways spokesman Sebastian White.
Flight 1006, which left Long Beach at 2:02 p.m. and landed in Seattle at 4:09 p.m., was taken to a remote parking area where the 150 passengers and their luggage were screened.
"We treat all threats seriously and apply the appropriate security response to these situations," White said.
Both airlines declined to specify the nature of the threats.