The Luton airport website reports: "Owing to technical issues with Air Traffic Control, flights in or out of London Luton Airport may be affected.
"Passengers are advised to check in for their flights as normal."
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Norwich City manager Alex Neil has slammed his side for their "lack of hunger" after they were beaten by Brentford at Carrow Road.
After a bright cold start to the day cloud will thicken from the west and it will become quite breezy, though for most a dry day.
It's been the coldest week in the Anglia region since January 2013 with temperatures dipping close to -8°C.