California Tower and palm trees in Balboa Park, San Diego

Cheap Flights from Seattle (SEA) to San Diego (SAN)

  • About 1,052 miles
  • About 2.6 hours
  • Best months: May, Jun, Oct
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From Seattle (SEA) to San Diego (SAN), it is 1,052 miles and around 2.6 hours of flying. Recent fares from $155 give you room in the budget for San Diego Zoo.

Tips for finding a lower fare

  • Start searching 6 to 10 weeks before departure for the best mix of price and choice.
  • Flexible dates matter most. Shift your trip by a day or two and compare the results.
  • Check what each carrier includes on SEA to SAN so a cheap fare does not turn into an expensive one.

Airlines on this route

Southwest, Alaska, Delta

Things to see in San Diego

  • San Diego Zoo
  • Coronado Beach

Frequently asked questions

When is the cheapest time to fly from Seattle to San Diego?

Fares on SEA to SAN are often lower in May, Jun and Oct. Prices move with demand, so compare a few dates on the partner site before you decide.

How long is the flight from SEA to SAN?

A nonstop flight takes about 2.6 hours. Itineraries with a connection take longer, depending on the layover.

Which airlines fly from Seattle to San Diego?

Carriers we commonly see on this route include Southwest, Alaska and Delta. Schedules and availability change, so check current options when you search.

How far ahead should I book SEA to SAN?

For most domestic trips, booking about 1 to 3 months ahead gives a good balance of price and choice. Holiday travel is better booked earlier.

Is the price I see here the final price?

No. Fares shown on this page are indicative and change often. The final price, taxes and fees are shown on the partner site at booking.

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