You could win a year of free United Airlines flights with your vaccination record. Here's how to enter the sweepstakes.

• United Airlines just unveiled its new "Your Shot to Fly" sweepstakes.
• United will give away 30 pairs of round-trip tickets, and five contestants will win a year of free travel.
• MileagePlus members must submit their vaccine records to be eligible to for the sweepstakes.

Vaccinated with nowhere to go? Don't want to deal with rising airfare prices? You're in luck: United Airlines is now offering its vaccinated MileagePlus members the chance to win a year of free flights.

Pent-up demand for travel has stayed constant throughout the COVID-19 pandemic. But now, this demand is hitting an inflection point as vaccine rollout continues globally and people are traveling again. As a result, leisure airfare with airlines like Southwest are nearing pre-pandemic prices again, CNBC reported.

If you're interested in having your post-vaccination "revenge vacation" but deterred by these steadily increasing airfare costs, look into United's new "Your Shot to Fly" sweepstakes, which was created to help "incentivize people to get their shot," Scott Kirby, United's CEO, said in the press release. You could win a free round trip or, even better, a year of free travel.

United's MileagePlus members interested in entering the sweepstakes must upload their COVID-19 vaccine records onto the airline's Travel-Ready Center via its website or app by June 22.

From there, throughout June, the airline will give away 30 pairs of round trip tickets under any class of service to any destination United flies to. And on July 1, the airline will announce the five winners of its ultimate sweepstake prize: the five contestants and their plus ones will win a year of free travel with the airline, once again to any destination and under any class.

"Thanks to the vaccine, more and more destinations are opening up for travel - and we know our customers are eager to fly," Kirby said.