You don't even have to be Irish.

Orbitz Irish Goodbye Trip
Credit: Getty Images/AWL Images RM

Travel booking site is getting into the St. Patrick’s Day spirit. On March 11, they helped two friends pull off one of the greatest “Irish goodbyes” in history. (Also known as ghosting, an Irish goodbye is leaving a social event without telling your hosts you're leaving.)

When Orbitz surprised two revelers at Chicago’s St. Patrick’s Day parade with an all-expenses paid trip to Ireland, the only condition was that they had to pull off the World’s Most Irish-Irish Goodbye.

The friends had to ditch their friends and immediately make their way to the Emerald Isle for a week of pint-pouring, castle touring, and celebrating St. Patrick’s Day in Dublin.

Orbitz is giving away another trip to Ireland: Winners will receive Delta Air Lines vouchers (valued at nearly $4,000) and $1,000 in Orbucks — the site’s rewards points — to use on a hotel.

If you win (or decide to go to Ireland on your own dime), consider staying at the Merrion Hotel, which occupies four Georgian houses overlooking landscaped gardens, and features a subterranean cellar bar with vaulted ceilings. To be considered, Irish merrymakers must participate in an Orbitz Instagram contest.

To enter, follow @Orbitz, comment on their Irish goodbye video, tag the friend you’ll take with you to Ireland, and use the hashtag #IrishGoodbyeSweepstakes.

A winner will be announced on March 27.