United Airlines (UAL) on Monday announced a contest offering a full year of free flights, the latest corporate giant to join the White House's national effort to encourage people to get the COVID-19 vaccination shot.

With governments around the world stepping up their mass vaccination campaigns — and citizens rapidly making up for lost time after more than a year of COVID-related restrictions — United is offering a sweet deal, especially with travel prices soaring.

Between Monday and June 22nd, passengers can upload their vaccination record to the airline's mobile app or website to enter the “Your Shot to Fly” sweepstakes. United plans to give away 30 pairs of tickets throughout the month of June.

Then, on July 1st, five randomly selected MileagePlus members who have entered the contest will be chosen to win the grand prize of free travel for a year for themselves and one other person, including any class of service and any location across the globe.

“We’re proud to do our part to incentivize people to get their shot," United CEO Scott Kirby said in a press release.

"Thanks to the vaccine, more and more destinations are opening up for travel and we know our customers are eager to fly. We’re excited to give people one more reason to get vaccinated so they can reunite with friends and family or take that long-awaited vacation which all could be just one shot away," he added.

United is the latest company to join the battle to nudge citizens into getting their shot in the arm, which include McDonald's, Shake Shack, OkCupid, Uber, Lyft and Krispy Kreme.

Brooke DiPalma is a producer and reporter for Yahoo Finance. Follow her on Twitter at @BrookeDiPalma or email her at bdipalma@yahoofinance.com. Check out her latest:

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