Flying to Europe for your next vacation could be cheaper than flying to somewhere domestic. Norwegian Airlines is currently running a US-to-Europe sale with roundtrip fares to be found for as low as $226.
The cheapest fares are available from September through March, and Airfare Watchdog has a list of the best available routes, with links to the best available dates. Just remember to use promo code FRIENDS2019 at checkout to save even more.