Delta Air Lines is adding a new type of entertainment to its onboard offerings: a collaboration with sports entertainment gambling company DraftKings.

The Atlanta-based airline has launched SkyPicks, a free-to-play sports contest that gives SkyMiles frequent flyer members the ability to test their sports knowledge and compete for Delta gift cards.

No wagering, deposits, miles or real money is involved, according to a news release announcing the partnership. Gambling is outlawed on commercial aircraft, dictated by a law passed more the 50 years ago.

SkyMiles members over 21 can use their laptop or mobile devices during their flight to make predictions tied to real matchups. It is not available on seat back screens.

Read more at AJC.