Brits returning home from France must self-isolate for 14 days from Saturday.
The country was removed from the 'safe list' following fears that it could be experiencing a second wave of Covid-19.
The Netherlands, Monaco, Malta, Turks & Caicos and the island of Aruba were also added to the quarantine list.
The new measures, which are set to put thousands of holidays at risk, begin at 4am on Saturday.
France currently has 32.1 cases per 100,000 people according to the latest figures from the European Centre for Disease Prevention and Control.
Meanwhile, the UK's rate currently stands at 18.5.
Spain was removed from the list when the rate hit 30, with holidaymakers learning that quarantine would be imposed less than five hours before it was introduced.
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On August 11, Jean Castex, the prime minister, said the figures were "going the wrong way."
The Foreign and Commonwealth Office (FCO) is not advising holidaymakers who are already in the listed countries to leave immediately.
But it is advising British nationals against “all but essential travel” to the the countries on the quarantine list,
The Association of British Insurers (ABI) said travel insurance will remain valid for people who are already in the quarantined countries until they return home.
The airline said it is currently operating a limited schedule to France.
If your flight is cancelled by the airline, you'll secure a voucher or full refund.
If you've booked a package holiday with BA that is set to depart in the next three weeks and don't want to travel, you can secure a refund or a voucher.
A spokesman added: "Our Booking with Confidence policy now covers customers due to travel up to the end of September 2020.
"It allows customers to book a trip now, with the confidence that they can change the date or destination and re-book their journey for travel until April 2022.
"This means that if a customer wants to change their booking they can – re-booking or taking a voucher for future travel."
The airline has confirmed that they will continue to fly to France despite the change in government advice.
The budget airline said it would be operating a "full schedule" in the coming days.
A spokeswoman for easyJet said: "EasyJet notes the Government’s decision to impose a quarantine requirement for those travelling from France, Malta and the Netherlands.
"We plan to operate our full schedule in the coming days.
"Customers who no longer wish to travel can transfer their flights without a change fee or receive a voucher for the value of the booking.
"Should any flights be cancelled for later in August customers will be notified and informed of their options which includes transferring to an alternative flight free of charge, receiving a voucher or applying for a refund via a webform on our dedicated Covid Help Hub at easyJet.com."
Eurotunnel has advised holidaymakers in France not to turn up at the station without a valid booking.
Unfortunately it is fully booked for today as desperate Brits try to race home before quarantine is imposed.
Last night, John Keefe, director of public affairs for Eurotunnel, said it was "highly unlikely" Brits would be able to secure a booking for today.
Following the announcement late last night, he said the website was flooded with demands.
He told the BBC: "I think on the basis that last night when the news was announced our website went from zero to 12,000 waiting to get on the booking amendment page in just a few minutes I think it is highly unlikely anybody will find a space to travel today."
A spokesman said: “In light of the change to quarantine requirements for UK travellers returning from France, Eurotunnel Le Shuttle would like to advise customers currently in France, and hoping to return early, that they must amend their tickets online at eurotunnel.com, before travelling to the French terminal.
"The service is already very busy this weekend and there is no additional capacity.
"To avoid long queues and severe disruption we strongly advise against turning up at the terminal outside the allocated time. Customers will be unable to board alternative shuttles without a valid booking.”
The airline hasn't announced whether it will be cancelling any flights yet.
But following the announcement that Spain was being added to the quarantine list, the tour operator cancelled thousands of flights and holidays.
They also flew many customers home early in order to stop flying half-filled planes back and forth.
Jet2 has been contacted for comment.
The Irish airline hasn't announced whether it will be cancelling any flights yet.
But they didn't cancel any flights to Spain when it was added to the quarantine list, meaning it's possible they'll make the same decision here.
One customer has said on Twitter that their flight is still going ahead.
They tweeted: "What utter rubbish. No refund or voucher as the flight to France is still going.
"Even though departure is when it is only essential travel so we're not allowed.
"Apparently if I get a letter from the embassy, they'll *consider* a refund. Great. Thanks for that."