Trip.com
>
Flights
>
Flights to United States
>
Flights to California
>
Flights to San Diego
>
Seattle to San Diego flight
>
Seattle Tacoma Intl. Airport to San Diego International Airport flight

Explore the cheapest one-way and round-trip flights from Seattle Tacoma Intl. Airport to San Diego International Airport over the next 90 days, with one-way fares from $54 and round-trip from $90. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 9:08 PM
        2h 51m
        Nonstop
        SAN 11:59 PM
        Seattle - San Diego | Thu, Oct 15 | Alaska Airlines
        SAN 9:20 AM
        3h 8m
        Nonstop
        SEA 12:28 PM
        San Diego - Seattle | Sat, Oct 17 | Alaska Airlines
        $90 $582
        85% off
        85% off
        $582 $90
      • SEA 11:31 AM
        3h 7m
        Nonstop
        SAN 2:38 PM
        Seattle - San Diego | Sat, Oct 24 | Alaska Airlines
        SAN 6:15 AM
        3h 13m
        Nonstop
        SEA 9:28 AM
        San Diego - Seattle | Sat, Oct 31 | Alaska Airlines
        $91 $582
        84% off
        84% off
        $582 $91
      • SEA 7:04 AM
        3h 2m
        Nonstop
        SAN 10:06 AM
        Seattle - San Diego | Wed, Oct 28 | Alaska Airlines
        SAN 6:15 AM
        3h 13m
        Nonstop
        SEA 9:28 AM
        San Diego - Seattle | Sat, Oct 31 | Alaska Airlines
        $91 $582
        84% off
        84% off
        $582 $91
      • SEA 7:15 AM
        2h 52m
        Nonstop
        SAN 10:07 AM
        Seattle - San Diego | Thu, Oct 15 | Delta Air Lines
        SAN 7:45 AM
        3h 13m
        Nonstop
        SEA 10:58 AM
        San Diego - Seattle | Sat, Oct 17 | Delta Air Lines
        $100
        83% off
        $582 $100
      • SEA 7:15 AM
        2h 56m
        Nonstop
        SAN 10:11 AM
        Seattle - San Diego | Wed, Dec 2 | Delta Air Lines
        SAN 6:47 PM
        3h 18m
        Nonstop
        SEA 10:05 PM
        San Diego - Seattle | Mon, Dec 7 | Delta Air Lines
        $114
        80% off
        $582 $114
      • SEA 7:04 AM
        3h 2m
        Nonstop
        SAN 10:06 AM
        Seattle - San Diego | Sat, Oct 31 | Alaska Airlines
        SAN 6:16 AM
        3h 12m
        Nonstop
        SEA 9:28 AM
        San Diego - Seattle | Thu, Nov 5 | Alaska Airlines
        $121
        79% off
        $582 $121
      • SEA 7:15 AM
        2h 52m
        Nonstop
        SAN 10:07 AM
        Seattle - San Diego | Thu, Oct 22 | Delta Air Lines
        SAN 7:45 AM
        3h 13m
        Nonstop
        SEA 10:58 AM
        San Diego - Seattle | Fri, Oct 30 | Delta Air Lines
        $213
        63% off
        $582 $213
      • SEA 9:08 PM
        2h 51m
        Nonstop
        SAN 11:59 PM
        Seattle - San Diego | Fri, Oct 16 | Alaska Airlines
        SAN 8:28 PM
        3h 9m
        Nonstop
        SEA 11:37 PM
        San Diego - Seattle | Thu, Oct 22 | Alaska Airlines
        $436
        25% off
        $582 $436
      • SEA 1:00 PM
        17h 25m
        1 stop
        SAN 2:00 PM
        Seattle - San Diego | Sat, Oct 10 | Normal Airline
        SAN 3:00 PM
        6h
        Nonstop
        SEA 4:00 PM
        San Diego - Seattle | Mon, Oct 12 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        SEA 7:59 PM
        2h 53m
        Nonstop
        SAN 10:52 PM
        Seattle - San Diego | Sat, Dec 5 | Delta Air Lines
        $54 $100
        46% off
        46% off
        $100 $54
      • SEA 7:15 AM
        2h 56m
        Nonstop
        SAN 10:11 AM
        Seattle - San Diego | Sun, Dec 6 | Delta Air Lines
        $54 $100
        46% off
        46% off
        $100 $54
      • SEA 7:59 PM
        2h 55m
        Nonstop
        SAN 10:54 PM
        Seattle - San Diego | Wed, Nov 11 | Delta Air Lines
        $55 $100
        45% off
        45% off
        $100 $55
      • SEA 7:15 AM
        2h 52m
        Nonstop
        SAN 10:07 AM
        Seattle - San Diego | Mon, Nov 9 | Delta Air Lines
        $56
        44% off
        $100 $56
      • SEA 7:59 PM
        2h 52m
        Nonstop
        SAN 10:51 PM
        Seattle - San Diego | Sat, Oct 31 | Delta Air Lines
        $58
        42% off
        $100 $58
      • SEA 11:31 AM
        3h 7m
        Nonstop
        SAN 2:38 PM
        Seattle - San Diego | Sat, Oct 31 | Alaska Airlines
        $75
        25% off
        $100 $75
      • SEA 4:27 PM
        7h 30m
        1 stop
        SAN 11:57 PM
        Seattle - San Diego | Wed, Nov 11 | Frontier Airlines
        $66
        34% off
        $100 $66
      • SEA 4:58 PM
        17h 21m
        1 stop
        SAN 10:19 AM
        Seattle - San Diego | Sat, Dec 5 | Frontier Airlines
        $72
        28% off
        $100 $72
      • SEA 1:00 PM
        17h 25m
        1 stop
        SAN 2:00 PM
        Seattle - San Diego | Sat, Oct 10 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Seattle Tacoma Intl. Airport to San Diego International Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Seattle Tacoma Intl. Airport to San Diego International Airport

What is the cheapest month for one-way flights from Seattle Tacoma Intl. Airport to San Diego International Airport?

Data is based on average one-way flight prices from Seattle Tacoma Intl. Airport to San Diego International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Seattle Tacoma Intl. Airport to San Diego International Airport, the best time to buy is in December, with an average price of $164. You’ll want to avoid February, when the average price can reach as high as $315.

$315
$240
$164
$89
    Cheapest
  • $220
    Oct
  • $243
    Nov
  • $164
    Dec
  • $232
    Jan
  • $315
    Feb
  • $196
    Mar
  • $208
    Apr
  • $190
    May
  • $242
    Jun
  • $256
    Jul
  • $250
    Aug
  • $192
    Sep

What’s the cheapest month to fly round-trip from Seattle Tacoma Intl. Airport to San Diego International Airport?

The data is based on the past 12 months and shows the average monthly round-trip fares from Seattle Tacoma Intl. Airport to San Diego International Airport in the Trip.com database.

Based on Trip.com’s data from the past 12 months, August is typically the cheapest month to find flights from Seattle Tacoma Intl. Airport to San Diego International Airport, with an average price of $188. In contrast, November is usually the most expensive month, with average fares reaching $530.

$530
$359
$188
$17
    Cheapest
  • $249
    Oct
  • $530
    Nov
  • $412
    Dec
  • $297
    Jan
  • $245
    Feb
  • $393
    Mar
  • $414
    Apr
  • $382
    May
  • $317
    Jun
  • $390
    Jul
  • $188
    Aug
  • $284
    Sep

What is the cheapest day of the week to fly from Seattle Tacoma Intl. Airport to San Diego International Airport?

The data is based on the past 12 months and shows the average ticket prices from Seattle Tacoma Intl. Airport to San Diego International Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Seattle Tacoma Intl. Airport to San Diego International Airport is Tuesday, with average fares typically lower than other days. You’ll want to avoid flying on Sunday, as ticket prices are usually the highest that day.

$281
$231
$180
$130
  • $225
    Mon
  • $180
    Tue
  • $206
    Wed
  • $229
    Thu
  • $199
    Fri
  • $208
    Sat
  • $281
    Sun

Which airline offers the cheapest flights from Seattle Tacoma Intl. Airport to San Diego International Airport?

The cheapest airline flying from Seattle Tacoma Intl. Airport to San Diego International Airport is Delta Air Lines (from $54) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Delta Air Lines
From $54
Frontier Airlines
From $66
Alaska Airlines
From $75
American Airlines
From $80
United Airlines
From $134
KLM
From $161
Sun Country Airlines
From $360

Find more flights and airlines

What is the flight schedule from Seattle Tacoma Intl. Airport to San Diego International Airport?

Check the schedule for flights from Seattle to San Diego and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS254

    Seattle Tacoma Intl. Airport

    8:07 PM

    SEA

    2h 51m

    10:58 PM

    SAN

    S M T W T F S
    Search

  2. AS623

    Seattle Tacoma Intl. Airport

    6:05 PM

    SEA

    2h 58m

    9:03 PM

    SAN

    S M T W T F S
    Search

  3. DL2672

    Seattle Tacoma Intl. Airport

    7:59 PM

    SEA

    2h 50m

    10:49 PM

    SAN

    S M T W T F S
    Search

  4. DL2508

    Seattle Tacoma Intl. Airport

    7:15 AM

    SEA

    2h 52m

    10:07 AM

    SAN

    S M T W T F S
    Search

  5. AS650

    Seattle Tacoma Intl. Airport

    10:20 AM

    SEA

    3h 3m

    1:23 PM

    SAN

    S M T W T F S
    Search

  6. F93406

    Seattle Tacoma Intl. Airport

    4:27 PM

    SEA

    2h 50m

    Nonstop

    8:17 PM

    DEN

    S M T W T F S
    Search

  7. F92711

    Denver International Airport

    10:29 PM

    DEN

    2h 28m

    Nonstop

    11:57 PM

    SAN

    S M T W T F S
Find more flights and airlines

About Seattle Tacoma Intl. Airport and San Diego International Airport

Learn about Seattle Tacoma Intl. Airport (SEA) and San Diego International Airport (SAN) — including location, terminals, transportation, and travel tips.

Flight distance 1,693.46 km
Cheapest one-way ticket price $54
Cheapest return ticket price $90

FAQs for Seattle Tacoma Intl. Airport to San Diego International Airport Flights

  • How long is the flight from Seattle Tacoma Intl. Airport to San Diego International Airport?

    Seattle Tacoma Intl. Airport to San Diego International Airport takes about 2 hours 21 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 11 daily flights from Seattle Tacoma Intl. Airport (SEA) to San Diego International Airport (SAN).
  • The earliest flight from Seattle Tacoma Intl. Airport to San Diego International Airport departs at 06:45, and the last departs at 21:08, with about 27 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Seattle Tacoma Intl. Airport (SEA) to San Diego International Airport (SAN) is quite popular. Without considering departure times or holidays, tickets cost around $217 in October, the most expensive month to book this route.
  • The earliest flight departs from Seattle Tacoma Intl. Airport (SEA) at 07:05 and arrives in San Diego International Airport (SAN) at 09:58.
  • The latest flight departs from Seattle Tacoma Intl. Airport (SEA) at 21:22 and arrives in San Diego International Airport (SAN) at 00:12.
    • The distance from San Diego International Airport to downtown is about 3 km. It takes about 20 minutes by taxi.
    • The distance from McClellan-Palomar Airport to downtown is about 47 km. It takes about 1 hour by taxi.
  • Delta Air Lines is a very popular airline operating an average of 2627 flights per month.
  • One-way flights from Seattle Tacoma Intl. Airport to San Diego International Airport currently start from $54, and round-trip fares start from $90. The current lowest fare is a Delta Air Lines flight departing on Sat, Dec 5; prices may vary depending on availability.
  • Yes. Alaska Airlines and Delta Air Lines operate direct flights from Seattle Tacoma Intl. Airport to San Diego International Airport, with an average flight time of 2 hours 17 minutes, and around 99 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Seattle Tacoma Intl. Airport to San Diego International Airport is $177. Prices may vary depending on the departure date, airline, and availability.
  • WestJet and Condor are the most popular budget airlines flying from Seattle Tacoma Intl. Airport to San Diego International Airport, with one-way fares starting from $54. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle Tacoma Intl. Airport to San Diego International Airport operates around 105 weekly flights, mainly by Alaska Airlines and Delta Air Lines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Seattle Tacoma Intl. Airport and San Diego International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Popular Destinations

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.