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San Diego International Airport to Seattle Tacoma Intl. Airport flight

Explore the cheapest one-way and round-trip flights from San Diego International Airport to Seattle Tacoma Intl. Airport over the next 90 days, with one-way fares from $71 and round-trip from $86. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SAN 1:53 PM
        3h 7m
        Nonstop
        SEA 5:00 PM
        San Diego - Seattle | Sun, Oct 11 | Delta Air Lines
        SEA 7:15 AM
        2h 52m
        Nonstop
        SAN 10:07 AM
        Seattle - San Diego | Tue, Oct 13 | Delta Air Lines
        $86 $610
        86% off
        86% off
        $610 $86
      • SAN 7:27 PM
        3h 6m
        Nonstop
        SEA 10:33 PM
        San Diego - Seattle | Thu, Oct 22 | Alaska Airlines
        SEA 7:04 AM
        3h 2m
        Nonstop
        SAN 10:06 AM
        Seattle - San Diego | Thu, Oct 29 | Alaska Airlines
        $88 $610
        86% off
        86% off
        $610 $88
      • SAN 11:30 AM
        3h 9m
        Nonstop
        SEA 2:39 PM
        San Diego - Seattle | Sat, Oct 3 | Alaska Airlines
        SEA 8:49 AM
        3h 1m
        Nonstop
        SAN 11:50 AM
        Seattle - San Diego | Tue, Oct 6 | Alaska Airlines
        $89 $610
        85% off
        85% off
        $610 $89
      • SAN 7:27 PM
        3h 6m
        Nonstop
        SEA 10:33 PM
        San Diego - Seattle | Mon, Oct 5 | Alaska Airlines
        SEA 8:49 AM
        3h 1m
        Nonstop
        SAN 11:50 AM
        Seattle - San Diego | Tue, Oct 6 | Alaska Airlines
        $89
        85% off
        $610 $89
      • SAN 9:20 AM
        3h 8m
        Nonstop
        SEA 12:28 PM
        San Diego - Seattle | Sun, Oct 18 | Alaska Airlines
        SEA 9:08 PM
        2h 51m
        Nonstop
        SAN 11:59 PM
        Seattle - San Diego | Tue, Oct 20 | Alaska Airlines
        $89
        85% off
        $610 $89
      • SAN 5:20 PM
        3h 6m
        Nonstop
        SEA 8:26 PM
        San Diego - Seattle | Fri, Oct 23 | Alaska Airlines
        SEA 7:04 AM
        3h 2m
        Nonstop
        SAN 10:06 AM
        Seattle - San Diego | Fri, Oct 30 | Alaska Airlines
        $90
        85% off
        $610 $90
      • SAN 6:27 PM
        3h 6m
        Nonstop
        SEA 9:33 PM
        San Diego - Seattle | Mon, Oct 19 | Alaska Airlines
        SEA 8:49 AM
        3h 1m
        Nonstop
        SAN 11:50 AM
        Seattle - San Diego | Mon, Oct 26 | Alaska Airlines
        $90
        85% off
        $610 $90
      • SAN 7:45 PM
        3h 12m
        Nonstop
        SEA 10:57 PM
        San Diego - Seattle | Sun, Nov 8 | Alaska Airlines
        SEA 11:43 AM
        3h 4m
        Nonstop
        SAN 2:47 PM
        Seattle - San Diego | Thu, Nov 12 | Alaska Airlines
        $91
        85% off
        $610 $91
      • SAN 7:20 AM
        3h 18m
        Nonstop
        SEA 10:38 AM
        San Diego - Seattle | Mon, Nov 16 | Delta Air Lines
        SEA 7:15 AM
        2h 52m
        Nonstop
        SAN 10:07 AM
        Seattle - San Diego | Wed, Nov 18 | Delta Air Lines
        $91
        85% off
        $610 $91
      • SAN 11:02 AM
        3h 16m
        Nonstop
        SEA 2:18 PM
        San Diego - Seattle | Fri, Oct 9 | Delta Air Lines
        SEA 7:15 AM
        2h 52m
        Nonstop
        SAN 10:07 AM
        Seattle - San Diego | Wed, Oct 14 | Delta Air Lines
        $91
        85% off
        $610 $91
      • SAN 11:02 AM
        3h 16m
        Nonstop
        SEA 2:18 PM
        San Diego - Seattle | Mon, Nov 2 | Delta Air Lines
        SEA 7:15 AM
        2h 52m
        Nonstop
        SAN 10:07 AM
        Seattle - San Diego | Thu, Nov 5 | Delta Air Lines
        $91
        85% off
        $610 $91
      • SAN 7:45 AM
        3h 13m
        Nonstop
        SEA 10:58 AM
        San Diego - Seattle | Sat, Oct 10 | Delta Air Lines
        SEA 7:15 AM
        2h 52m
        Nonstop
        SAN 10:07 AM
        Seattle - San Diego | Tue, Oct 13 | Delta Air Lines
        $433
        28% off
        $610 $433
      • SAN 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        San Diego - Seattle | Sat, Sep 26 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        SAN 4:00 PM
        Seattle - San Diego | Mon, Sep 28 | Normal Airline
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      • Cheapest nonstop
        SAN 6:22 PM
        3h 7m
        Nonstop
        SEA 9:29 PM
        San Diego - Seattle | Wed, Nov 4 | Alaska Airlines
        $74 $112
        34% off
        34% off
        $112 $74
      • SAN 6:27 PM
        3h 6m
        Nonstop
        SEA 9:33 PM
        San Diego - Seattle | Sat, Oct 31 | Alaska Airlines
        $74 $112
        34% off
        34% off
        $112 $74
      • SAN 7:27 PM
        3h 6m
        Nonstop
        SEA 10:33 PM
        San Diego - Seattle | Fri, Oct 30 | Alaska Airlines
        $74 $112
        34% off
        34% off
        $112 $74
      • SAN 8:28 PM
        3h 9m
        Nonstop
        SEA 11:37 PM
        San Diego - Seattle | Thu, Oct 22 | Alaska Airlines
        $77
        31% off
        $112 $77
      • SAN 6:57 PM
        3h 8m
        Nonstop
        SEA 10:05 PM
        San Diego - Seattle | Thu, Oct 22 | Delta Air Lines
        $77
        31% off
        $112 $77
      • SAN 3:59 PM
        3h 6m
        Nonstop
        SEA 7:05 PM
        San Diego - Seattle | Wed, Nov 4 | Delta Air Lines
        $78
        30% off
        $112 $78
      • SAN 3:59 PM
        3h 6m
        Nonstop
        SEA 7:05 PM
        San Diego - Seattle | Sat, Oct 31 | Delta Air Lines
        $78
        30% off
        $112 $78
      • SAN 6:57 PM
        3h 8m
        Nonstop
        SEA 10:05 PM
        San Diego - Seattle | Fri, Oct 30 | Delta Air Lines
        $78
        30% off
        $112 $78
      • SAN 6:25 AM
        8h 47m
        1 stop
        SEA 3:12 PM
        San Diego - Seattle | Wed, Nov 4 | Frontier Airlines
        $71
        37% off
        $112 $71
      • SAN 6:25 AM
        8h 47m
        1 stop
        SEA 3:12 PM
        San Diego - Seattle | Sat, Oct 31 | Frontier Airlines
        $72
        36% off
        $112 $72
      • SAN 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        San Diego - Seattle | Sat, Sep 26 | Normal Airline
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Displayed flight fares from San Diego International Airport to Seattle Tacoma Intl. 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 San Diego International Airport to Seattle Tacoma Intl. Airport

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

Data is based on average one-way flight prices from San Diego International Airport to Seattle Tacoma Intl. 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 San Diego International Airport to Seattle Tacoma Intl. Airport, the best time to buy is in September, with an average price of $131. You’ll want to avoid March, when the average price can reach as high as $274.

$274
$203
$131
$60
  • $131
    Sep
  • $214
    Oct
  • $218
    Nov
  • $230
    Dec
  • $194
    Jan
  • $204
    Feb
  • $274
    Mar
  • $177
    Apr
  • $223
    May
  • $242
    Jun
  • $269
    Jul
  • $225
    Aug

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

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

Based on Trip.com’s data from the past 12 months, April is typically the cheapest month to find flights from San Diego International Airport to Seattle Tacoma Intl. Airport, with an average price of $176. In contrast, November is usually the most expensive month, with average fares reaching $462.

$462
$319
$176
$33
    Cheapest
  • $224
    Sep
  • $286
    Oct
  • $462
    Nov
  • $351
    Dec
  • $237
    Jan
  • $275
    Feb
  • $438
    Mar
  • $176
    Apr
  • $246
    May
  • $290
    Jun
  • $271
    Jul
  • $354
    Aug

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

The data is based on the past 12 months and shows the average ticket prices from San Diego International Airport to Seattle Tacoma Intl. 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 San Diego International Airport to Seattle Tacoma Intl. 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.

$302
$245
$187
$130
  • $197
    Mon
  • $187
    Tue
  • $187
    Wed
  • $219
    Thu
  • $253
    Fri
  • $215
    Sat
  • $302
    Sun

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

The cheapest airline flying from San Diego International Airport to Seattle Tacoma Intl. Airport is Frontier Airlines (from $71) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From $71
Alaska Airlines
From $74
Delta Air Lines
From $77
American Airlines
From $80
Hahn Air
From $85
United Airlines
From $128

Find more flights and airlines

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

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS1373

    San Diego International Airport

    7:27 PM

    SAN

    3h 6m

    10:33 PM

    SEA

    S M T W T F S
    Search

  2. DL2572

    San Diego International Airport

    4:23 PM

    SAN

    2h 57m

    7:20 PM

    SEA

    S M T W T F S
    Search

  3. AS574

    San Diego International Airport

    6:22 PM

    SAN

    3h 7m

    9:29 PM

    SEA

    S M T W T F S
    Search

  4. DL2613

    San Diego International Airport

    6:54 PM

    SAN

    3h 11m

    10:05 PM

    SEA

    S M T W T - S
    Search

  5. F92818

    San Diego International Airport

    6:30 AM

    SAN

    2h 36m

    Nonstop

    10:06 AM

    DEN

    S M T W T F S
    Search

  6. F91175

    Denver International Airport

    1:07 PM

    DEN

    3h 5m

    Nonstop

    3:12 PM

    SEA

    S M T W T F S

  7. F91326

    San Diego International Airport

    6:22 PM

    SAN

    1h 43m

    Nonstop

    8:05 PM

    LAS

    S - - W T - S
    Search

  8. F92407

    Harry Reid Intl. Airport

    10:03 AM

    LAS

    2h 59m

    Nonstop

    1:02 PM

    SEA

    S M T W T F S

  9. F91326

    San Diego International Airport

    6:22 PM

    SAN

    1h 43m

    Nonstop

    8:05 PM

    LAS

    S - - W T - S
    Search

  10. F94203

    Harry Reid Intl. Airport

    4:39 PM

    LAS

    3h 1m

    Nonstop

    7:40 PM

    SEA

    S - - - T - -

  11. F94990

    San Diego International Airport

    4:53 PM

    SAN

    2h 31m

    Nonstop

    8:24 PM

    DEN

    S M T W T F S
    Search

  12. F91175

    Denver International Airport

    1:07 PM

    DEN

    3h 5m

    Nonstop

    3:12 PM

    SEA

    S M T W T F S
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About San Diego International Airport and Seattle Tacoma Intl. Airport

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

Flight distance 1,693.46 km
Cheapest one-way ticket price $71
Cheapest return ticket price $86

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

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

    San Diego International Airport to Seattle Tacoma Intl. Airport takes about 2 hours 34 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 8 daily flights from San Diego International Airport (SAN) to Seattle Tacoma Intl. Airport (SEA).
  • The earliest flight from San Diego International Airport to Seattle Tacoma Intl. Airport departs at 06:15, and the last departs at 20:20, with about 21 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from San Diego International Airport (SAN) to Seattle Tacoma Intl. Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around $334 in September, the most expensive month to book this route.
  • The earliest flight departs from San Diego International Airport (SAN) at 06:15 and arrives in Seattle Tacoma Intl. Airport (SEA) at 09:25.
  • The latest flight departs from San Diego International Airport (SAN) at 21:24 and arrives in Seattle Tacoma Intl. Airport (SEA) at 00:41.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • Delta Air Lines is a very popular airline operating an average of 2518 flights per month.
  • One-way flights from San Diego International Airport to Seattle Tacoma Intl. Airport currently start from $71, and round-trip fares start from $86. The current lowest fare is a Frontier Airlines flight departing on Wed, Nov 4; prices may vary depending on availability.
  • Yes. Alaska Airlines, Delta Air Lines and United Airlines operate direct flights from San Diego International Airport to Seattle Tacoma Intl. Airport, with an average flight time of 2 hours 35 minutes, and around 112 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 San Diego International Airport to Seattle Tacoma Intl. Airport is $180. Prices may vary depending on the departure date, airline, and availability.
  • Condor and WestJet are the most popular budget airlines flying from San Diego International Airport to Seattle Tacoma Intl. Airport, with one-way fares starting from $71. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • San Diego International Airport to Seattle Tacoma Intl. Airport operates around 111 weekly flights, mainly by Alaska Airlines and Delta Air Lines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter San Diego International Airport and Seattle Tacoma Intl. 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.

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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.