Direct flights from Seattle to San Diego SEA → SAN

Alaska Airlines, Delta Air Lines and Southwest Airlines fly nonstop from Seattle (SEA) to San Diego (SAN), several times daily. The flight takes about 2h 40m and covers 1,051 miles (1,692 km). Round-trip fares typically run around $233. Arrivals run on time 80.8% at SEA and 75.8% at SAN — BTS data for the last three months, counting arrivals within 15 minutes of schedule. Fares last checked 6 August 2026.

60-day flexibility overview based on 2 recent fares across the next 60 days

Cheapest
$137
Typical
$233
Most expensive
$329

What flexibility is worth here

How long you stay changes it too

  • 1–5 nights $329
  • 6–9 nights $137

Staying 6–9 nights typically costs $192 less than 1–5 nights.

Most people pick dates first and see the price second. We watch every date combination on this route and tell you when a good one gets cheap. Watch SEA → SAN →

Prices last updated 24 days ago. Fares change frequently — check the airline for current pricing.

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Alaska Airlines AS Delta Air Lines DL NetJets Aviation 1I Southwest Airlines WN

Nonstop departures observed in recent fares

Across 2 recent dates we priced, Seattle (SEA) to San Diego (SAN) showed up to 1 nonstop departure a day, with the earliest around 07:15 and the latest around 21:08, operated by Delta and Alaska.

07:15 21:08

Departure times seen while pricing this route over the last few weeks — a sample, not the full timetable. Airlines adjust schedules seasonally.

More nonstops from Seattle

SEA → LAX Los Angeles 7 airlines SEA → PHX Phoenix 7 airlines SEA → DEN Denver 6 airlines SEA → LAS Las Vegas 5 airlines SEA → BOS Boston 4 airlines SEA → ONT Ontario 4 airlines SEA → ORD Chicago 4 airlines SEA → PDX Portland 4 airlines

Frequently asked questions

Is there a direct flight from Seattle to San Diego?

Yes, Alaska Airlines, Delta Air Lines and 1 more airline operate nonstop flights from Seattle (SEA) to San Diego (SAN).

Which airlines fly direct from Seattle to San Diego?

Alaska Airlines, Delta Air Lines, Southwest Airlines operate nonstop flights from Seattle to San Diego.

How long is the flight from Seattle to San Diego?

The nonstop flight from Seattle to San Diego takes ~2h 40m (approximately 1692 km).

How often do direct flights operate from Seattle to San Diego?

Nonstop flights from Seattle to San Diego operate multiple daily.

What is the on-time performance for flights from Seattle to San Diego?

Arrivals run on time 80.8% at SEA and 75.8% at SAN — BTS data for the last three months, counting arrivals within 15 minutes of schedule.

How much is a round-trip flight from Seattle to San Diego?

Round-trip flights from Seattle (SEA) to San Diego (SAN) start at $137, with a typical fare around $233. Based on 2 recent fare combinations.

Does trip length change the round-trip fare from Seattle to San Diego?

Typical round-trip fares from Seattle (SEA) to San Diego (SAN) by trip length: a short trip (1–5 nights) about $329 and a week away (6–9 nights) about $137. Medians from 2 recent fare combinations.

Explore More

SEA All direct flights from Seattle SAN All direct flights from San Diego SAN → SEA Return: San Diego to Seattle

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