LONDON — Irish airline Ryanair has lost its legal action against the country’s government over its coronavirus-related travel restrictions.

Ryanair had claimed the restrictions were “unlawful” and amounted to a disproportionate interference in the rights of the airline and its passengers.

As well as urging people to quarantine for 14 days after their arrival from countries not on the so-called “green list,” people have been advised not to travel outside the island of Ireland except for essential purposes.

Ryanair said the guidelines went “well beyond mere travel advice” and represented the “imposition of restrictions on international travel.”

However, Justice Garrett Simons rejected Ryanair’s claims, ruling that the government had acted lawfully and was “entitled, in the exercise of the executive power, to provide such advice to the public.”

“The advice to avoid non-essential travel and to restrict movements on entry to the State is just that: advice,” the ruling read.