Affordable Flights from SAN to SEA: Your Pacific Coast Guide
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: SAN → SEA
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$110
Highest Fare
$210
Median Fare
$191
Price Spread
$101
Prices vary significantly — hourly tracking is especially valuable here.
Cheapest month to fly: May 2026 (from $110)
Most expensive month: April 2026 (from $210)
Biggest price drop caught: $76 between consecutive checks
Most frequent cheapest airline: Southwest
What This Means for You
Flights from San Diego to Seattle range from $110 to $210, a $101 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
San Diego (SAN)
To
Seattle (SEA)
Airport Information
San Diego (SAN)
San Diego International Airport (SAN), formerly known as Lindbergh Field, is conveniently located just three miles northwest of downtown San Diego, making it one of the most accessible major airports in the United States. It is famous for its single-runway operation, which handles an impressive volume of domestic and international traffic daily. Passengers can enjoy a variety of local dining options and art installations throughout the terminals while waiting for their departure, all while enjoying the refreshing breeze from the nearby San Diego Bay.
Seattle (SEA)
Seattle-Tacoma International Airport (SEA), commonly referred to as Sea-Tac, serves as the primary gateway to the Pacific Northwest and is located approximately 14 miles south of downtown Seattle. As a major international hub, it features state-of-the-art facilities, including the recently renovated Central Terminal and the sleek International Arrivals Facility. The airport is well-connected to the city via the Link Light Rail, offering travelers a budget-friendly and efficient way to reach the city center without worrying about the region's infamous highway traffic.
Frequently Asked Questions
How long is the average flight from San Diego to Seattle?
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 SAN and SEA?
Alaska Airlines, Southwest Airlines, and Delta Air Lines frequently offer direct, non-stop service on this route.
Is there a time difference between San Diego and Seattle?
No, both San Diego and Seattle are in the Pacific Time Zone, so you will not need to adjust your watch upon arrival.
What is the cheapest month to fly to Seattle?
January and February are typically the most affordable months to fly, as demand drops following the winter holiday season.
How can I get from Sea-Tac Airport to downtown Seattle?
The Sound Transit Link Light Rail is the most popular option, departing every 8-15 minutes and reaching downtown in about 40 minutes.
Learn More About Price Tracking
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Trip Manta vs Google Flights
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Our Methodology
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How Often Do Prices Drop?
Data study: drop frequency, average savings, and how long drops last.
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