Cheap Flights from Great Falls to San Diego

Featured airlines

Lufthansa
Aer Lingus
Stobart Air
Ryanair
British Airways
American Airlines
Air France
Virgin Atlantic
Iberia

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 15% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in
*Available to Expedia members.