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Low Price Flights from Seattle to San Diego

Seattle to San Diego Flight Information

The approximate distance between Seattle and San Diego is 1,692.33km. Average flight time from Seattle to San Diego is around 2 hours 52 minutes. According to Trip.com data, travel demand hits its peak in July. The cheapest month to book flights is November.

Cheapest one-way
AU$ 102
Frontier Airlines Frontier Airlines SEA-SAN 9h 14m · 1 stop Wed, Sep 2
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Cheapest return
AU$ 141
Alaska Airlines Alaska Airlines SEA-SAN 3h 6m · Direct Tue, Sep 15 - Tue, Sep 22
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Recommended airlines
Frontier Airlines Frontier Airlines Cheapest · From AU$ 102 Delta Air Lines Delta Air Lines Most booked
Best time to book
December
Cheapest
July
Peak season for travel
Route details
1,692.33km
Flight distance
2h 52m
Average flight time

Explore the cheapest flights from Seattle to San Diego in the next three months. Based on Trip.com's data from the latest 7 days, one-way fares start at AU$ 102, and return tickets start at AU$ 141.

      • Cheapest nonstop
        SEA 07:40
        3h 6m
        Direct
        SAN 10:46
        Seattle - San Diego | Tue, Sep 15 | Alaska Airlines
        SAN 15:50
        3h 2m
        Direct
        SEA 18:52
        San Diego - Seattle | Tue, Sep 22 | Alaska Airlines
        AU$ 141 AU$ 235
        40% off
        40% off
        AU$ 235 AU$ 141
      • SEA 07:40
        2h 59m
        Direct
        SAN 10:39
        Seattle - San Diego | Sat, Sep 5 | Alaska Airlines
        SAN 06:15
        3h 5m
        Direct
        SEA 09:20
        San Diego - Seattle | Sat, Sep 12 | Alaska Airlines
        AU$ 155 AU$ 235
        34% off
        34% off
        AU$ 235 AU$ 155
      • SEA 07:04
        3h 2m
        Direct
        SAN 10:06
        Seattle - San Diego | Wed, Oct 14 | Alaska Airlines
        SAN 09:20
        3h 8m
        Direct
        SEA 12:28
        San Diego - Seattle | Tue, Oct 20 | Alaska Airlines
        AU$ 157 AU$ 235
        33% off
        33% off
        AU$ 235 AU$ 157
      • SEA 07:40
        3h 6m
        Direct
        SAN 10:46
        Seattle - San Diego | Tue, Sep 22 | Alaska Airlines
        SAN 15:50
        3h 2m
        Direct
        SEA 18:52
        San Diego - Seattle | Sat, Sep 26 | Alaska Airlines
        AU$ 159
        32% off
        AU$ 235 AU$ 159
      • SEA 20:49
        2h 55m
        Direct
        SAN 23:44
        Seattle - San Diego | Sat, Sep 12 | Alaska Airlines
        SAN 16:50
        3h 2m
        Direct
        SEA 19:52
        San Diego - Seattle | Sat, Sep 19 | Alaska Airlines
        AU$ 159
        32% off
        AU$ 235 AU$ 159
      • SEA 20:49
        2h 55m
        Direct
        SAN 23:44
        Seattle - San Diego | Mon, Sep 14 | Alaska Airlines
        SAN 06:15
        3h 5m
        Direct
        SEA 09:20
        San Diego - Seattle | Mon, Sep 21 | Alaska Airlines
        AU$ 169
        28% off
        AU$ 235 AU$ 169
      • SEA 13:00
        17h 25m
        1 stop
        SAN 14:00
        Seattle - San Diego | Wed, Aug 19 | Normal Airline
        SAN 15:00
        6h
        Direct
        SEA 16:00
        San Diego - Seattle | Fri, Aug 21 | Normal Airline
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      • SEA 14:37
        9h 14m
        1 stop
        SAN 23:51
        Seattle - San Diego | Wed, Sep 2 | Frontier Airlines
        AU$ 102 AU$ 157
        35% off
        35% off
        AU$ 157 AU$ 102
      • SEA 21:45
        19h 14m
        1 stop
        SAN 16:59
        Seattle - San Diego | Fri, Sep 25 | Frontier Airlines
        AU$ 110 AU$ 157
        30% off
        30% off
        AU$ 157 AU$ 110
      • SEA 14:37
        9h 14m
        1 stop
        SAN 23:51
        Seattle - San Diego | Sat, Sep 5 | Frontier Airlines
        AU$ 112 AU$ 157
        28% off
        28% off
        AU$ 157 AU$ 112
      • SEA 16:27
        7h 24m
        1 stop
        SAN 23:51
        Seattle - San Diego | Thu, Sep 10 | Frontier Airlines
        AU$ 113
        28% off
        AU$ 157 AU$ 113
      • SEA 16:27
        7h 24m
        1 stop
        SAN 23:51
        Seattle - San Diego | Sat, Sep 26 | Frontier Airlines
        AU$ 113
        28% off
        AU$ 157 AU$ 113
      • SEA 13:00
        17h 25m
        1 stop
        SAN 14:00
        Seattle - San Diego | Wed, Aug 19 | Normal Airline
        Find more flights
        Find more flights

Find Cheapest Airlines Flying from Seattle to San Diego

Choose from 1 carriers that fly from Seattle to San Diego, including Delta Air Lines, Enjoy the cheapest tickets on this route with Frontier Airlines.
Delta Air Lines logo Delta Air Lines
Airlines are determined based on actual purchased flight tickets from Seattle to San Diego according to previous 12 months data from Trip.com.

Trip.com Price Insights on Flights from Seattle to San Diego

What is the cheapest month for one-way flights from Seattle to San Diego?

Average price of one-way flights from Seattle to San Diego purchased by Trip.com users by month over the past 12 months.

According to Trip.com's data, the cheapest month for flights from Seattle to San Diego is December, with an average price of AU$ 228. Conversely, the most expensive month is typically February, with an average price of up to AU$ 441.

AU$ 441
AU$ 335
AU$ 228
AU$ 122
    Cheapest
  • AU$ 408
    Aug
  • AU$ 295
    Sep
  • AU$ 309
    Oct
  • AU$ 340
    Nov
  • AU$ 228
    Dec
  • AU$ 324
    Jan
  • AU$ 441
    Feb
  • AU$ 274
    Mar
  • AU$ 290
    Apr
  • AU$ 265
    May
  • AU$ 338
    Jun
  • AU$ 357
    Jul

What is the cheapest month for return flights from Seattle to San Diego?

Average price of round-trip flights from Seattle to San Diego purchased by Trip.com users by month over the past 12 months.

According to historical data from Trip.com, the lowest prices for flights from Seattle to San Diego are found during August, with an average price of AU$ 341. Conversely, the highest prices are found during November, with an average price of up to AU$ 741.

AU$ 741
AU$ 541
AU$ 341
AU$ 141
  • AU$ 341
    Aug
  • AU$ 406
    Sep
  • AU$ 348
    Oct
  • AU$ 741
    Nov
  • AU$ 576
    Dec
  • AU$ 415
    Jan
  • AU$ 342
    Feb
  • AU$ 549
    Mar
  • AU$ 578
    Apr
  • AU$ 533
    May
  • AU$ 471
    Jun
  • AU$ 545
    Jul

What's the cheapest day to fly from Seattle to San Diego?

Data is based on the average flight price for each day of the week from Seattle to San Diego on Trip.com over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Seattle to San Diego is Tuesday, with average prices lower than on other days. Avoid Sunday, as prices are usually highest then.

AU$ 373
AU$ 329
AU$ 285
AU$ 241
  • AU$ 324
    Mon
  • AU$ 285
    Tue
  • AU$ 293
    Wed
  • AU$ 320
    Thu
  • AU$ 297
    Fri
  • AU$ 305
    Sat
  • AU$ 373
    Sun

Flight FAQs

  • Which airlines offer the cheapest flights from Seattle (SEA) to San Diego (SAN)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as AU$ 102 on Cheapest nonstop routes (e.g. SEA to SAN on Wed, Sep 2), while Alaska Airlines offers Cheapest nonstop round-trips from AU$ 141 departing on Tue, Sep 15 and returning on Tue, Sep 22.
  • At the moment, you can catch a direct flight from Seattle to San Diego with the following airlines, including: Delta Air Lines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 2 hours 52 minutes to fly from Seattle (SEA) to San Diego (SAN).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to San Diego is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 96 flight per week flying from Seattle to San Diego. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL2508 (07:37)
  • To find best deals on flights from Seattle to San Diego, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Sep 2, with one-way flights priced at just AU$ 102.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Diego travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to San Diego is November, when demand for travel is lower.
  • You can land at any one of the following hubs in San Diego, with Seattle-Tacoma International Airport to San Diego International Airport (SEA-SAN) is by far the most common option on this route: McClellan-Palomar Airport (CLD) Marine Corps Air Station Miramar (NKX) San Diego International Airport (SAN).
  • The time difference between San Diego and Seattle is 0m.
  • Tickets can only be changed or cancelled if permitted by airline policy. 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. However, 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Seattle to San Diego is AU$ 234. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Seattle to San Diego is AU$ 374. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Seattle and San Diego, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

Trip.com Airline Insights on Flights from Seattle toSan Diego

Which airlines offer the cheapest nonstop flights from Seattle to San Diego?

Data is based on the average price of all nonstop flights from Seattle to San Diego on Trip.com in the past 12 months.

Based on Trip.com data from the past 12 months, Frontier Airlines offers the cheapest nonstop flights from Seattle to San Diego, with an average price of AU$ 192.

AU$ 62
AU$ 192
AU$ 323
AU$ 454
AU$ 584
Frontier Airlines
AU$ 192
Frontier Airlines
Delta Air Lines
AU$ 338
Delta Air Lines
Alaska Airlines
AU$ 393
Alaska Airlines
Hawaiian Airlines
AU$ 475
Hawaiian Airlines
United Airlines
AU$ 584
United Airlines

Which airlines operate the most flights from Seattle to San Diego?

Data is based on the number of flights from Seattle to San Diego operated by each airline on Trip.com in the past month.

Based on Trip.com data from the past month, Alaska Airlines operates the most flights from Seattle to San Diego, with 66 flight per week.

0
15
41
66
Alaska Airlines
66
Alaska Airlines
Qatar Airways
37
Qatar Airways
Delta Air Lines
36
Delta Air Lines
American Airlines
19
American Airlines
Icelandair
15
Icelandair
Condor Airlines
15
Condor Airlines

How many flights are there each day from Seattle to San Diego?

The data is based on the flight numbers for each day of the week from Seattle to San Diego within the Trip.com database over the past month.

Based on Trip.com data from the past month, the most flights from Seattle to San Diego depart on Friday, and the fewest flights depart on Wednesday.

219
183
147
111
Highest
165
Mon
178
Tue
147
Wed
164
Thu
219
Fri
169
Sat
190
Sun

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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.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, regulatory fees, etc) with all fees confirmed before payment. Fees for baggage, meals, Wi-Fi, 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.