Scottish holidaymakers heading to Spain and France could face delays today due to air traffic control problems.
French air traffic controllers are experiencing a "partial system failure" which means flights passing through or near France may see disruption.
Passengers heading away to the sun are being urged to check their airlines to get further updates before heading to the airport.
Jet2, easyjet and Ryanair passengers leaving from Glasgow and Edinburgh could be affected.
Some customers have been delayed for up to three hours so far today.
A Ryanair statement read: "We regret to advise customers that there has been a serious French ATC equipment failure early on Sunday morning.
"Long French ATC slot delays of up to 3 hours are being suffered. If this equipment is not repaired quickly it could lead to long delays and possible ATC cancellations later on Sunday especially to flights operating across France.
"We apologise sincerely for these ATC delays which we are doing all we can to minimise."
A statement from Jet2 read: "We are currently experiencing delays across our flight programme due to French ATC system issues.
"If you’re affected, rest assured we’ll try to keep any disruption to a minimum."
While a statement from easyjet said "We are currently experiencing disruption due to a partial failure of French air traffic control systems."
