Some of the best airfares may not be on U.S. based online travel websites.

It often pays to surf the web globally.

Don’t just go to sites like travelzoo.com or airfarewatchdog.com. Go to the British websites — travelzoo.co.uk or airfarewatchdog.co.uk.

There’s also a Danish based site called Momondo.com. This site scours 700 other websites in Europe that you’ve never heard of but can provide great deals between European cities on airlines you may not have heard about either. And the savings can be impressive — up to 70% off of what you might pay if purchasing the tickets on a U.S. based website.