Route guide
Cheap Flights from Seattle to San Diego: Book Airline Tickets
- Distance
- about 1,050 mi
- Typical flight time
- 2 h 15 min – 3 h 15 min
- Airports
- 1 × 1
- Time difference
- None
This page covers the practical side of flying between Seattle and San Diego: which airports to compare, how long the trip takes, and when it is busy. It works for either direction. For a price on your dates, ask a specialist.
Quick answer: Seattle to San Diego is about 1,050 miles (1,690 km) and a typical flight takes 2 h 15 min to 3 h 15 min. There is no time difference. Seattle has 1 airport to compare and San Diego has 1.
Airport pairs to compare
Seattle's airport is connected to downtown by light rail, which makes arrival simple even at busy times. San Diego's airport is only a few miles from downtown, and it operates with a single runway.
| Pair | Departure airport | Arrival airport |
|---|---|---|
| SEA to SAN | Seattle-Tacoma International | San Diego International |
About the airports
- SEA · Seattle-Tacoma International
Connected to downtown by Link light rail. - SAN · San Diego International
Only a few miles from downtown, with a single runway.
Airlines with a major base at either end
- At Seattle: Delta Air Lines, Alaska Airlines
Airlines with a base at one end often connect through their hub. A specialist can compare nonstop and connecting options on your dates.
When to go and what to expect
Seattle
July through September is the driest and busiest period. From November to March it is rainy, and fares are often lower.
San Diego
The climate is mild year-round. Summer and holidays are busiest, and May and June often have morning cloud along the coast.
How long is Seattle to San Diego?
At about 1,050 miles, Seattle to San Diego is a short-to-medium flight. Fares on routes this length are sensitive to the day of the week and the time of day, so check a few departure times before you settle.
Getting between the airport and town
Seattle: Link light rail runs from the airport to downtown in roughly 40 minutes.
San Diego: Downtown is a short taxi or ride-hail trip from the airport.
Planning ground transport too? See our car rental guide.
Good to know
- Alaska cruises depart from the city roughly from spring through early fall, which can lift demand and hotel prices at that time.
- San Diego Comic-Con in July fills hotels and raises demand. On busy days, delays at the single-runway airport can ripple.
- Compare the total with bags included, not just the base fare. See baggage fees and taxes and fees.
Flying San Diego to Seattle?
This route guide works in both directions. For other trips, see all flights from Seattle or all flights from San Diego.
Frequently asked questions
How far is Seattle from San Diego?
The straight-line distance between the main airports is about 1,050 miles (1,690 km). Routes can be longer in practice because of air traffic and weather.
How long is a flight from Seattle to San Diego?
A typical scheduled flight takes roughly 2 h 15 min to 3 h 15 min in the air, depending on winds, the aircraft and the airports. Connecting itineraries take longer, and nonstop availability depends on the airline and dates.
Which airports can I use?
At Seattle: SEA (Seattle-Tacoma International). At San Diego: SAN (San Diego International). Ask for prices on more than one pairing.
Is there a time difference?
There is no time difference.
When is the best time to fly from Seattle to San Diego?
In Seattle: July through September is the driest and busiest period. From November to March it is rainy, and fares are often lower. In San Diego: The climate is mild year-round. Summer and holidays are busiest, and May and June often have morning cloud along the coast. Fares are usually highest in the busy periods described for each city, so flexible dates can help.
Which airlines should I compare for Seattle to San Diego?
Airlines with a major base at either end include Delta Air Lines and Alaska Airlines. A specialist compares them with other carriers on your dates, since schedules and availability change.
Do you show fares on this page?
No. Fares change constantly, so we do not publish prices that might be out of date. A specialist checks live availability and confirms the full total, including taxes and bags, before you pay.
Route details updated October 18, 2026.