As a result, the airline Flybe, has cancelled all its scheduled flights from Exeter Airport after 3pm today (1 March).
The extreme weather brought plunging temperatures and heavy snow with up to 40cm falling in some areas. Homeless shelters have prepared emergency transport to the welfare centre in Luton should their own facilities reach capacity.
Indeed it received seven flight diversions between 4.20 am and 7am this morning as flights bound for Dublin diverted to Shannon Airport due to the temporary closure of Dublin Airport.
"Due to the Red Weather Alert for heavy snow all airlines have now suspended their flight operations to and from Dublin Airport for the remainder of today and tomorrow (Friday)".
Other London airports, including Gatwick, have also seen dozens of flights cancelled.
Bosses have now declared all flights out of the airport have finished for today.
Shannon handled 20 flight diversions alone from Dublin and Cork Airports starting from 04.20 on Wednesday morning until midnight.
Gatwick Airport has announced, "Flights are arriving and departing from Gatwick as normal".
While wintry weather conditions across Europe may result in minor delays and some airlines consolidating flights, significant disruption at Heathrow is not now expected today. Travelers on cancelled flights can claim a full refund if they no longer wish to travel.