Frontier’s St. Patrick’s Day deals are good on regular and sale fares for flights into May.
- Book by: May 18 (11:59 p.m. eastern)
- Use promo code: POTOGOLD
- Travel dates: Through May 21
- Blackout dates: March 21-23, 28-30; April 4-6, 11-13
LISTEN: Get ready to travel with Rick Seaney’s vacation to-do list.