Round-trip flights start at just $149.

Budget carrier WOW Air is already known for its cheap flights from the U.S. to Europe, and travelers looking to head to popular European stops can now book the lowest airfares the airline has ever offered with its latest sale.

The airline is currently offering travelers $49 one-way flights from various U.S. cities to several stops in Europe, with the price including all taxes and carrier charges.

Deals are available from U.S. cities including Boston, New York, Detroit, and Washington, D.C. to stops that include Dublin, Brussels, Frankfurt, London, and Reykjavik.

The $49 one-way flights can be found from each of the mentioned U.S. cities to the European stops, with return fares starting as low as $99.99 to give you a round-trip total of about $149.

Travelers who can’t make the January through March dates will also find $99.99 one-way flights across several routes in April and May.

The fares are available for booking through midnight of Jan. 18 (or until seats sell out) for travel between Jan. 21 and March 11 only when booking round-trip fares. The deal is only available on 1,000 seats on selected flights, so you’ll want to act fast to grab the best bargain.

Travelers will also want to note that WOW Air is a budget carrier and charges additional fees for amenities that include seat selection, checked baggage, and in-flight meals and drinks.