The AirUnion alliance of airlines in Russia continues to face numerous problems, with over 1500 passengers stranded in most Russian airports. AirUnion reported that the delays in  departure and arrival of flights in several airports was largely due to the aviation fuel crisis.  Dalavia Airlines informed airport authorities that two of its flights which are due to arrive in Sochi, would be delayed by over three days. Most passengers have had to book tickets with other available airlines to reach their respective destinations.