Spirit Airlines said Sunday that it has nearly finished issuing refunds to passengers and returning flight crews to their home bases after its abrupt decision to halt operations over the weekend.

The airline canceled flights without warning on Shabbos, leaving travelers and staff stranded across the United States, the Caribbean, and Latin America. The shutdown followed mounting financial strain, including a sharp spike in fuel expenses tied to the war involving Iran.

According to figures from Cirium, the carrier had scheduled more than 4,000 domestic flights through May 15 before ceasing service.

The company reported that most passengers who purchased tickets using credit or debit cards had received refunds by Motzoei Shabbos, with only a small portion still awaiting processing.

Spirit also said that roughly 1,500 remaining crew members were reassigned back to their home bases over the course of the weekend.

In response to the disruption, several other airlines stepped in to offer reduced “rescue fares” to assist stranded travelers.