Examples:

• When she found out she got the job, she felt like she could walk on air.
• Winning the championship made him walk on air for weeks.
• After the surprise party, she was walking on air all evening.
• When they announced their engagement, they both seemed to be walking on air.
• Receiving that scholarship made her walk on air with pride.
• He's been walking on air ever since he got that promotion.
• The team's victory had them all walking on air as they left the stadium.
• Graduating at the top of her class made her walk on air at the graduation ceremony.
• They felt like they were walking on air after their dream vacation.
• The news of her recovery had her family and friends walking on air.
• She couldn't stop smiling and felt like she was walking on air on her wedding day.
• His success in the competition had him walking on air with excitement.
• After finishing her first marathon, she was walking on air with a sense of accomplishment.
• Getting an A+ on his final exam had him walking on air with pride.
• When they announced the pregnancy, the couple was walking on air.
• The children were walking on air after receiving their long-awaited presents.
• Their love story was so romantic that it had everyone feeling like they were walking on air.
• Reuniting with her childhood friend after years apart had her walking on air.
• Achieving her lifelong dream of becoming an astronaut had her walking on air.
• Getting a clean bill of health from the doctor had him walking on air with relief.