United Airlines aircraft are seen on the tarmac at Los Angeles International Airport in Los Angeles, California in October 1, 2020. - American Airlines has announced it will start furlouging 19,000 employees today due to the ongoing coronavirus pandemic as the Payroll Suppport Program (PSP) under the CARES Act expires today. (Photo by Frederic J. BROWN / AFP) (Photo by FREDERIC J. BROWN/AFP via Getty Images)
CNN  — 

In an effort to encourage Americans to get their Covid-19 shots, United Airlines is offering vaccinated members of its MileagePlus loyalty program the chance to win a year’s worth of travel and free flights in its “Your Shot to Fly” sweepstakes.

According to a release from the airline Monday, any member who uploads proof of vaccination to United’s website or app between today and June 22 will be entered for a chance to win one of 30 roundtrip flights for two anywhere in the world United flies.