$$+1.866.579.8033 Can I Cancel My Flight And Get A Refund On Frontier?

Most Frontier Airlines tickets are non-refundable, but you can receive a full refund in certain situations. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) If you do not qualify for a refund, you may still receive a travel credit toward a future flight. 

When you can get a full refund

Within 24 hours of booking: You can cancel your flight for a full refund if you do so within 24 hours of purchase, as long as your flight is at least seven days away.
If Frontier cancels or significantly delays your flight: If the airline cancels your flight or has a significant schedule change (more than three hours for domestic flights), you are entitled to a full refund to your original form of payment if you decide not to travel. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) 
Medical or family emergency: Frontier may offer a refund for the death of an immediate family member. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) In the case of serious communicable diseases, you might be eligible for a transferable travel credit.