Two airlines have cancelled all flights between the Egyptian resort of Sharm el-Sheikh and the UK until January.
British Airways has cancelled flights up to and including 14 January while Easyjet has suspended flights until at least 6 January.
Easyjet said the move was made to provide some certainty to passengers travelling over the Christmas period.
BA said the decision was made following discussions with the government about the situation in Sharm el-Sheikh.
Monarch, Thomson and Thomas Cook have cancelled flights until dates in December.
Flights were halted after the UK government said the Sinai plane crash, which killed 224 people on 31 October, may have been caused by a bomb.
Easyjet said customers on affected flights could go to another destination, receive a full refund or get a flight voucher for future travel.
People wanting to travel back to the UK have been asked to contact the airline's customer service team.
BA said customers due to travel on affected flights can claim a full refund, rebook to a later date or switch to an alternative destination.
The airline said it was keeping flights, which are scheduled to operate from 16 January, "under review".
It added: "The safety and security of our customers will continue to be our top priorities in any decisions we may make."
Image copyrightAP
Image captionThe arrivals hall at Sharm el-Sheikh airport has been empty of tourists
Easyjet said on its website: "We are sorry for the inconvenience this will obviously cause, but we hope that being clear with all our customers at this point helps you to manage your plans with more certainty.
"The situation is beyond our control and passenger safety will always be our number one priority."
Other dates flights have been cancelled until are:
Security measures
George McGregor from London, who had been due to fly to Sharm el-Sheikh told the BBC it was "excellent news" - but Easyjet should have cancelled the flights sooner.
"We were due to fly out on 23 December for Christmas and New Year. Total outlay, £1,444," he said.
"Until today we could not get our money back to fund an alternative holiday, and faced a charge of £180 if we wanted to change flights."
Ian Harrison, also from London, said he was first told he would only receive an exchange of flights but Easyjet has since offered him a refund.
"It was pretty hard to get alternative accommodation that close to Christmas, or alternative flights, so not much of an offer.
"I've pretty much cancelled my holiday."
The Foreign Office, which advises against all but essential air travel to or from Sharm el-Sheikh, says there are currently no UK airlines operating flights to the resort.
Regular flights between the UK and Sharm el-Sheikh were were suspended on 4 November.
Special security measures for flights returning to the UK, such as transporting hold baggage on separate planes, were put in place up to 17 November.
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