Plan an escape to Europe or beyond starting at less than $500 thanks to this KLM Royal Dutch Airlines fall and winter sale.

The airline’s “Real Deal Days” promotion, which travelers must book by Sept. 24, is available on travel across the world from Nov. 1 through March 24, 2025, KLM shared with Travel + Leisure. Sale flights are available in all fare classes from economy and premium economy to business class.

“At KLM, we believe travel is about making meaningful connections with people, places, and experiences,” Boaz Hulsman, the vice president of commercial for North American at Air France KLM, told T+L. “We’re happy to bring back the Real Deal Days, offering attractive fares to many destinations around the world, and helping travelers start their journey to create these everlasting memories.”

Travel roundtrip from New York to Rome starting at just $436, or fly from Los Angeles to Barcelona starting at just $520. For just $563, travelers can fly roundtrip from Washington D.C. to Berlin, or fly from New York all the way to Dubai starting at just $819. 

For more space, book a trip in KLM’s Premium Comfort class starting at just $1,406 from Los Angeles to Warsaw, or starting at just $1,347 from Austin to Amsterdam.

KLM is also putting its World Business Class on sale with flights starting at $2,900 roundtrip from New York to Amsterdam, starting at $2,774 from New York to Barcelona, and starting at $4,068 from New York to Berlin. Flights from the carrier’s newest gateway city in Portland, Oregon — which KLM plans to launch next month — are also on sale with business class tickets starting at $3,619 to Mumbai.

As part of the sale, travelers heading to Europe are required to stay at least seven days and purchase at least 50 days in advance of their departure. Travelers flying to Africa, India, or the Middle East must stay for a minimum of 14 days and purchase their ticket at least 28 days in advance.

Weekend surcharges also apply for travel from Thursday to Sunday. Specific travel and blackout dates vary by destination and fare class.

KLM is the world’s oldest airline still operating under its original name and is part of the SkyTeam Alliance.