SEA to SAN Flight Guide: Find Cheap Flights from Seattle to San Diego
Cheapest flight found
$110
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the May 7, 2026 departure — the cheapest date we found.
Price Behavior: SEA → SAN
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$110
Highest Fare
$250
Median Fare
$181
Price Spread
$141
Prices vary significantly — hourly tracking is especially valuable here.
Cheapest month to fly: May 2026 (from $110)
Most expensive month: April 2026 (from $250)
Biggest price drop caught: $76 between consecutive checks
Most frequent cheapest airline: United
What This Means for You
Flights from Seattle to San Diego range from $110 to $250, a $141 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Because prices on this route change significantly, setting up hourly price alerts gives you the best chance of catching a short-lived drop before it corrects. We have caught drops as large as $76 between hourly checks on this route.
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From
Seattle (SEA)
To
San Diego (SAN)
Airport Information
Seattle (SEA)
Seattle-Tacoma International Airport, commonly referred to as Sea-Tac, serves as the primary gateway for the Pacific Northwest and is a major hub for Alaska Airlines and Delta Air Lines. Located about 14 miles south of downtown Seattle, the airport offers extensive amenities including local Pacific Northwest dining options, impressive art installations, and the Central Terminal’s massive glass wall overlooking the runways. Travelers can easily reach the airport via the Link Light Rail, which provides a cost-effective and reliable connection from the city center.
San Diego (SAN)
San Diego International Airport is uniquely situated just three miles northwest of downtown San Diego, making it one of the most conveniently located major airports in the United States. As you land, you will experience a thrilling descent over the city's skyscrapers before arriving at one of the two main terminals. The airport is well-served by the Flyer Shuttle, which connects passengers to the Old Town Transit Center, and a variety of ride-share options that can get you to the beach or your hotel in less than fifteen minutes.
Frequently Asked Questions
How long is the flight from Seattle to San Diego?
A direct flight typically takes between 2 hours and 45 minutes to 3 hours, covering a distance of approximately 1,050 miles.
Which airlines offer non-stop flights between SEA and SAN?
Alaska Airlines, Delta Air Lines, and Southwest Airlines are the primary carriers offering frequent daily non-stop service on this route.
Is there a time difference between Seattle and San Diego?
No, both cities are located in the Pacific Time Zone, so you will not need to adjust your watch upon arrival.
What is the best way to get from SAN to downtown San Diego?
The most efficient options are ride-sharing services like Uber or Lyft, or the Route 992 bus which provides a direct link to the Santa Fe Depot and the Gaslamp Quarter.
Do I need a passport for this flight?
No, since this is a domestic flight within the United States, you only need a valid government-issued photo ID, such as a driver's license.
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