Cheap Flights from Washington to Carlsbad

Popular airlines from Washington to Carlsbad

  • 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

Find the cheapest month to fly from Washington (WAS) to San Diego (SAN)

August is typically the cheapest month to fly

From €94 - €211 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.