Go ahead, head across the pond this summer. You can finally afford it.

Even as domestic flight prices are going up, prices for flights to Europe from the U.S. have been steadily dropping, says Hopper’s chief data scientist Patrick Surry. European flight prices are down roughly 14% between 2015 and 2016, and down about 18% from last year.

“I am amazed at how cheap it is to fly to Europe this summer,” says AirfareWatchdog founder George Hobica. Hopper’s Surry adds that “these are the best prices we’ve ever seen to get to Europe.”

One big reason: The expansion of ultra-low-cost airlines into the U.S. market is causing other carriers to lower their rates to compete, says Hobica. Indeed, in the past couple weeks both Norwegian and Wow have announced new U.S. cities they’ll be serving — Denver and Seattle for Norwegian and Chicago for Wow. Plus, consumer demand for flights to Europe is down, says Surry, which is depressing prices. (People are flying more domestically though.)

That’s a big win for travelers, who can now easily find one-way fares to Europe for under $200 on airlines ranging from Norwegian and Wow to traditional carriers. And this is true even if they don’t get their fares via a limited-time flash sale. (Those often yield even bigger savings — Wow is notorious for its $99 fares — though they are generally harder to secure.)

Here are 5 cities in Europe where flight prices have plummeted.

% change from 2016 to 2017 Average round-trip price, 2017
Ibiza Town, Spain -45% $514
Glasgow, United Kingdom -43% $549
Split, Croatia -34% $765
Oslo, Norway -32% $539
Stockholm, Sweden -31% $537

Remember, these flight prices are just averages, so someone who has flexible dates and a longer lead time can often score a significantly better deal. Other cities where flight prices have dropped a ton include: Paris and Manchester (-30%), Dubrovnik (-29%) and Amsterdam (-28%). And travel deal expert Jonathan Jones of Travelzoo adds that they’re seeing a ton of deals out of Iceland, Ireland and Italy as well.

Generally, you’ll find the lowest prices on airfare to Europe from major airports that are served by many airlines, including New York, Boston, Chicago and Los Angeles, Surry adds.