Cheap flights from Seattle-Tacoma International to San Diego (SEA - SAN)

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The best prices from Seattle-Tacoma International to San Diego are usually found in January or October, booked 60 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

How to find the cheapest flight from
Seattle-Tacoma International (SEA) to San Diego (SAN)

All the information you need to plan the best SEA to SAN flight in 2021: compare Seattle-Tacoma International to San Diego flight prices with the expected peak season, weather and rainfall in San Diego.
SEA - SAN
Price
$137 - $249
SAN
Temperature
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 inches

Popular in

December

High demand for flights, 28% potential price rise

Cheapest in

January

Best time to find cheap flights, 23% potential price drop

Round-trip from

$137

From Seattle-Tacoma International to San Diego

One-way from

$88

One-way flight from Seattle-Tacoma International to San Diego

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle-Tacoma International to San Diego?

Flights from Seattle-Tacoma International to San Diego are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Diego.

How far in advance should I book a flight from Seattle-Tacoma International to San Diego?

To save on the cost of your flight from Seattle-Tacoma International to San Diego, book at least 17 days before your planned departure. Booking around this time can save you about 27% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $73 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $98.

What is the cheapest month to fly from Seattle-Tacoma International to San Diego?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, July can be a great choice for travel to San Diego. Flights to San Diego from Seattle-Tacoma International in July are about $80 on average during July, but can be found for as low as $44.

When is the cheapest time to fly from Seattle-Tacoma International to San Diego (SEA - SAN)?

It’s optimal to fly from Seattle-Tacoma International to San Diego at noon. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight in the morning.

Cheap flights from Seattle-Tacoma International to San Diego in May, June 2021

The best prices found for SEA to SAN flights for May, June
2 Jun - 5 Jun
$99pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
15 Jun - 18 Jun
$101pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
SAN
San Diego
SAN
San Diego
Delta
Non-Stop
SEA
Seattle/Tacoma Intl
2 Jun - 2 Jun
$112pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Seattle-Tacoma International to San Diego 2021 flight deals

Cheap flights to San Diego from Seattle-Tacoma International found for this year
2 Jun - 5 Jun
$99pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
15 Jun - 18 Jun
$101pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
SAN
San Diego
SAN
San Diego
Delta
Non-Stop
SEA
Seattle/Tacoma Intl
2 Jun - 2 Jun
$112pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Non-stop flights to San Diego from Seattle-Tacoma International

Save time with Seattle-Tacoma International to San Diego direct flight deals
2 Jun - 5 Jun
$99pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
15 Jun - 18 Jun
$101pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
SAN
San Diego
SAN
San Diego
Delta
Non-Stop
SEA
Seattle/Tacoma Intl
2 Jun - 2 Jun
$112pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle-Tacoma International to San Diego

Late deals on round-trip flights to San Diego from Seattle-Tacoma International, departing today and this week
17 May - 14 Jun
$136pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
18 May - 24 May
$139pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
19 May - 26 May
$143pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to San Diego from Seattle-Tacoma International

The cheapest one-way flights from Seattle-Tacoma International to San Diego
12:00 pm - 6:30 pm
Delta
1 Stop
6h 30m
SEA - SAN
Delta
$88
Delta
2:25 pm - 7:52 am
Spirit Airlines
1 Stop
17h 27m
SEA - SAN
Spirit Airlines
$101
Gotogate
5:29 pm - 5:50 am
Frontier
1 Stop
12h 21m
SEA - SAN
Frontier
$105
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle-Tacoma International</span> to <span class="emphasized">San Diego</span> flights.

Flight FAQs

From Seattle-Tacoma International to San Diego

Are flight prices decreasing from Seattle to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to San Diego to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Alaska Airlines is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Seattle/Tacoma Intl to San Diego. Policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to San Diego have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Seattle/Tacoma Intl to San Diego that may be offering flexible cancellation policies are Delta, Alaska Airlines, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

What airports do I use to fly from Seattle to San Diego?

Booking a flight from Seattle/Tacoma Intl (SEA) to San Diego (SAN) is your only option if you wish to fly from Seattle to San Diego. On a typical day, there are 15 flights from Seattle/Tacoma Intl to San Diego, all of which are around 2h 39m for a nonstop flight. You can also purchase a plane ticket from 9 airlines when you book a flight from Seattle/Tacoma Intl to San Diego.

Can I find flights from Seattle-Tacoma International to San Diego for under $100 on Cheapflights?

Yes, there are multiple flights from Seattle-Tacoma International to San Diego for under $100. The cheapest flight booked recently is on Alaska Airlines for just $99, but on average you can expect to pay $126.

Are there nonstop flights from Seattle-Tacoma International to San Diego for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle-Tacoma International to San Diego under $100. A good price for a nonstop flight from Seattle-Tacoma International to San Diego is less than $134.

Are there last-minute flights available from Seattle-Tacoma International to San Diego for under $200?

There are currently 20+ open flights from Seattle-Tacoma International to San Diego within the next 7 days for less than $200.

What days are nonstop flights available from Seattle to San Diego?

You can find nonstop flights on the following days: Tuesday, Wednesday, Friday.

How popular is this flight route?

This flight path from Seattle/Tacoma Intl to San Diego was viewed by 343 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from Seattle-Tacoma International to San Diego on average per day?

5 flight departures from Seattle/Tacoma Intl to San Diego per day on average.
Evening (6pm - Midnight) - 100% of flight departures

Does it rain more in Seattle or San Diego?

Expected rainfall in Seattle is less than in San Diego. You can expect this to be the case over the next 17 days.

Is Seattle weather warmer or cooler than San Diego?

Expect the weather to be around 81 °F on average in August. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in San Diego is generally hotter than in Seattle.

How long is the flight from Seattle-Tacoma International to San Diego?

Departing from Seattle-Tacoma International to San Diego will take you 2h 45m. Seattle-Tacoma International and San Diego are separated by a distance of 1057 mi. All flights are typically nonstop.

What are the cheapest airlines flying from Seattle-Tacoma International to San Diego round-trip?

According to our current data, Alaska Airlines ($99), and Delta ($101) offers the cheapest pricing from Seattle-Tacoma International to San Diego. Alaska Airlines is currently priced 44% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Seattle-Tacoma International to San Diego one-way?

One-way options have recently been found by users for as low as $41 on Alaska Airlines. Other airlines that offer cheap prices include Spirit Airlines from $53 and Delta from $59 one-way.

Related searches

Flights to San Diego from Seattle-Tacoma International
Flights to Seattle-Tacoma International Flights to San Diego Flights from San Diego

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Alternative routes for Seattle-Tacoma International to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Diego

Things to know before you go - useful duration and weather info for your trip from Seattle-Tacoma International to San Diego.
Flight duration
2h 53m
Average temperature for May in San Diego
71.6 °F
Avg rainfall for May in San Diego
0.2 ″

Airports servicing Seattle

Airports servicing San Diego

Top 8 airlines flying from Seattle-Tacoma International to San Diego

The chart below displays the airlines Cheapflights users traveling from Seattle-Tacoma International to San Diego choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$67 $173 No cancel fee 69%
Spirit Airlines
$74 $174 No cancel fee 65%
Frontier
$106 $182 No cancel fee 62%
Alaska Airlines
$68 $199 No cancel fee 75%
Delta
$68 $207 No cancel fee N/A
Southwest
$78 $263 No cancel fee 63%
Endeavor Airlines
$125 $274 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by Endeavor Airlines. Please check directly on their website for additional information.

American Airlines
$102 $329 No cancel fee 71%

Hourly flight availability from Seattle-Tacoma International to San Diego

See what time of day planes typically take off from Seattle-Tacoma International towards San Diego.
Morning 6 AM to noon 52% of SEA to SAN departures
Afternoon Noon to 6 PM 32% of SEA to SAN departures
Evening 6 PM to midnight 9% of SEA to SAN departures
Early morning Midnight to 6 AM 7% of SEA to SAN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle-Tacoma International to San Diego
See how many times per day planes take to the skies headed from Seattle-Tacoma International to San Diego.
Sunday
21 daily flights
Monday
13 daily flights
Tuesday
11 daily flights
Wednesday
16 daily flights
Thursday
12 daily flights
Friday
18 daily flights
Saturday
17 daily flights
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