Qantas is offering refunds to any passengers travelling from Australia to the United States who are affected by a new entry ban. Dozens of travellers have been detained at US airports and protests have erupted around the country.

The executive order signed by US President Donald Trump has barred citizens of seven predominantly Muslim countries – Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen – from entering the US for 90 days. That includes legal US residents temporarily out of the country.

Qantas was seeking a government bailout in 2014 after reporting a loss of $2.8 billion. Credit:Getty Images

The order has also barred all refugees from entering the US for 120 days and Syrian refugees indefinitely.

Additionally, Australian citizens who have travelled to the seven countries since March 1, 2011 are no longer eligible to enter the US under the Visa Waiver Program, and are now required to apply for a US visa.