Cheap flights from Seattle to San Diego

Seattle-Tacoma
SEA
San Diego
SAN

Flight deals from Seattle to San Diego

Below you can see the best deals on flights Seattle — San Diego for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 23 September, from $77.

Top 10 cheap flights from Seattle to San Diego

F9
F9
$ 100

Seattle — San Diego

21:45—20:17
9 Sep 2026
22 h 32 m
1 stop
DL
$ 108

Seattle — San Diego

15:14—17:59
14 Sep 2026
2 h 45 m
Direct flight
DL
$ 108

Seattle — San Diego

07:15—10:09
14 Sep 2026
2 h 54 m
Direct flight
DL
$ 108

Seattle — San Diego

09:45—12:42
14 Sep 2026
2 h 57 m
Direct flight
DL
$ 108

Seattle — San Diego

18:15—21:09
9 Sep 2026
2 h 54 m
Direct flight
DL
$ 108

Seattle — San Diego

07:15—10:09
9 Sep 2026
2 h 54 m
Direct flight
DL
$ 108

Seattle — San Diego

09:45—12:42
9 Sep 2026
2 h 57 m
Direct flight
DL
$ 108

Seattle — San Diego

12:28—15:27
9 Sep 2026
2 h 59 m
Direct flight
DL
$ 108

Seattle — San Diego

18:15—21:09
8 Sep 2026
2 h 54 m
Direct flight
DL
$ 108

Seattle — San Diego

12:28—15:27
8 Sep 2026
2 h 59 m
Direct flight

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Seattle — San Diego flight

Looking for cheap flights from Seattle to San Diego? Compare fares from different airlines, check the flight schedule and travel time — and book your Seattle — San Diego ticket online at the best price.

The route has direct flights — around 458 flights per week, flights are operated by Hawaiian Airlines, Alaska Airlines, American Airlines, Delta and 6 more airlines, a nonstop flight takes about 2 h 48 min, the distance between the cities is around 1,710 km.

Planning your trip? You may find our San Diego travel guide, how to get from the airport into town and San Diego weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $77Min. price
SeptemberCheapest
AugustPeak season
YesDirect flights
1,710 kmDistance
2 h 48 minTravel time
10Airlines
458 / wkFlights

Flight schedule from Seattle to San Diego

The table shows direct flights from Seattle to San Diego on the selected date. The flight takes approximately 2 h 48 min. Regular flights are operated by Hawaiian Airlines, Alaska Airlines, American Airlines and Delta. Departures from Seattle-Tacoma International Airport and Paine Field airports, arrivals at San Diego International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 15 Aug 2026

Flight ticket prices by day: Seattle — San Diego

Below is a calendar of the lowest flight ticket prices for Seattle — San Diego by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $77 in September, and the most expensive are around $194 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Seattle to San Diego by month. Tickets are usually cheapest in January (around $171) and priciest in July (about $262) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$171lowMay$200mediumSep$205medium
Feb$182lowJun$239highOct$194low
Mar$205mediumJul$262highNov$217medium
Apr$194lowAug$251highDec$251high

Some values are estimated based on seasonality.

When to fly

Weather in San Diego: it is warmest in August (up to 26 °C on average) and coolest in March (around 17 °C). The driest month is July.

Tickets are usually cheapest in September and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · San Diego

Dry and wet days · San Diego

Wind speed and direction · San Diego

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How to get the best deal on a Seattle — San Diego ticket

  • Book ahead: fares for Seattle — San Diego are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Seattle is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to San Diego is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Seattle — San Diego route are operated by 10 airlines; Hawaiian Airlines runs the most flights (around 37% of all flights). Compare carriers, flight shares and schedules below.

  • Hawaiian AirlinesHA
    56x/week
    WebsiteFleet: 7511M pax/year
    • Direct flight SEA → SAN50x/week
    • Direct flight PAE → SAN7x/week
    36.9%
  • Alaska AirlinesAS
    52x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight SEA → SAN47x/week
      Duration
      2h 57m
      Days
      MTWTFSS
    • Direct flight PAE → SAN5x/week
      Duration
      2h 56m
      Days
      MTWTFSS
    34.1%Open →
  • American AirlinesAA
    17x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight SEA → SAN17x/week
      Duration
      2h 57m
      Days
      MTWTFSS
    • Direct flight PAE → SAN1x/week
      Duration
      3h
      Days
      MTWTFSS
    11.4%Open →
  • DeltaDL
    17x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight SEA → SAN17x/week
      Duration
      2h 57m
      Days
      MTWTFSS
    11.1%Open →
  • Southwest AirlinesWN
    4x/week
    WebsiteFleet: 817140M pax/year
    • Direct flight SEA → SAN4x/week
      Duration
      2h 49m
      Days
      MTWTFSS
    2.4%Open →
  • Qatar AirwaysQR
    3x/week
    WebsiteFleet: 26640M pax/year
    • Direct flight SEA → SAN3x/week
    2.2%Open →
  • Japan AirlinesJL
    1x/week
    WebsiteFleet: 14540M pax/year
    • Direct flight SEA → SAN1x/week
    0.9%Open →
  • CondorDE
    1x/week
    WebsiteFleet: 508.5M pax/year
    • Direct flight SEA → SAN1x/week
    0.4%Open →
  • Korean AirKE
    1x/week
    WebsiteFleet: 16025M pax/year
    • Direct flight SEA → SAN1x/week
    0.4%Open →
  • IcelandairFI
    1x/week
    WebsiteFleet: 524.7M pax/year
    • Direct flight SEA → SAN1x/week
    0.2%Open →

Cities and airports on the Seattle — San Diego route

Flights Seattle — San Diego depart from Seattle-Tacoma International Airport and Paine Field and arrive at San Diego International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Seattle

SEA
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

San Diego

SAN
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Seattle — San Diego flight

How long is the flight from Seattle to San Diego?

A nonstop Seattle — San Diego flight takes about 2 h 48 min — the distance between the cities is around 1,710 km.

How far is it from Seattle to San Diego?

The distance from Seattle to San Diego is about 1,710 km, which a nonstop flight covers in around 2 h 48 min.

Are there direct flights from Seattle to San Diego?

Yes, there are nonstop flights Seattle — San Diego — around 458 flights per week.

Which airlines fly from Seattle to San Diego?

Airlines operating Seattle — San Diego include Hawaiian Airlines, Alaska Airlines, American Airlines, Delta, Southwest Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Seattle — San Diego flights use?

Flights from Seattle depart from Seattle-Tacoma International Airport, Paine Field, and arrive at San Diego International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Seattle to San Diego?

The price of a Seattle — San Diego ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in August. Tickets typically cost between $77 and $194. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Seattle — San Diego?

Flights Seattle — San Diego are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Seattle to San Diego?

To catch a low fare Seattle — San Diego, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Seattle

See all
Los AngelesAnchorageVancouverSan FranciscoPhoenixSan JoseSpokanePortlandSanta AnaNew York CityBoiseDenverChicagoDallasSalt Lake CitySacramentoLas VegasRedmondBostonAtlantaHonoluluWashington, D.C.MinneapolisPascoBurbankAustinFairbanksEugeneJuneauNashvilleHoustonCalgaryBozemanDetroitPalm SpringsMissoulaMedfordRenoOrlandoVictoria

Where else you can fly from San Diego

See all
San FranciscoLas VegasSan JosePhoenixDenverChicagoSacramentoNew York CityDallasSalt Lake CityAtlantaFresnoLos AngelesPortlandBostonHonoluluOrlandoAustinSanta RosaWashington, D.C.OaklandVancouverSan Jose del CaboBoiseRenoRedmondMinneapolisCharlotteKahuluiSan Luis ObispoHoustonEugeneDetroitMiamiTorontoMontrealFort LauderdaleMontereyKailua-KonaTampa

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