Book an unforgettable European trip this spring with your brother, sister, or even your best friend with new deals on discount flights to major European destinations.

Low-cost Icelandic carrier Play Airlines is celebrating National Sibling Day on April 10 with deals on flights from the U.S. to Europe. This particular deal is valid for certain flights purchased between April 10 to April 15 and booked for travel in May and September through December 2025.

The available flights will depart from Baltimore/Washington International Thurgood Marshall Airport (BWI), Boston Logan International Airport (BOS), and New York Stewart International Airport (SWF). Travelers can purchase introductory fare tickets to Iceland’s Keflavík International Airport (KEF) starting from $99.

The deal also includes flights to Amsterdam Airport Schiphol (AMS), Berlin Brandenburg Airport (BER), Dublin Airport (DUB), Paris Charles de Gaulle Airport (CDG), Copenhagen Airport (CPH), and London Stansted Airport (STN). Introductory fare for those destinations starts from $129.

All of Play’s flights to European cities outside of Iceland include a layover at KEF airport, which means travelers have the opportunity to take advantage of the airline’s generous stopover policy. For no additional cost, travelers can stay in Iceland for up to 10 days on either leg of their journey. That means a totally free stop before returning home or continuing on to another destination in Play’s network—or both.

When booking the flight deal, travelers should note the lowest-priced fares are in the “Play basic” category, which is Play’s bare bones fare class. Passengers with Play basic fares are only allowed a personal item on board. Extra baggage and seat selection is not included in the deal, and can be booked for an additional fee.

Travelers can also choose to purchase a “basic plus” or “value” ticket. Play’s value fares include a carry-on bag, one checked bag, priority boarding, and seat selection, but can cost up to an extra $180 or more, according to our searches.