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

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The best prices from Seattle 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 (SEA) to San Diego (SAN)

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 to San Diego

One-way from

$68

One-way flight from Seattle 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 to San Diego?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 25% on the overall cost on flights from Seattle to San Diego.

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

Travelers have found it’s best to book a flight 35 days in advance to save up to 42% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 35 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to San Diego 1-2 weeks in advance for as low as $381, or $460 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to San Diego. Flights to San Diego from Seattle in August are about $326 on average during August, but can be found for as low as $138.

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

A simple way to save on the total cost of your ticket is to fly from Seattle to San Diego at noon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the evening.

Cheap flights from Seattle to San Diego in November, December 2020

The best prices found for SEA to SAN flights for November, December
7 Dec - 9 Dec
$59pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
10 Dec - 2 Jan
$68pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
3 Dec - 10 Dec
$73pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to San Diego 2021 flight deals

Cheap flights to San Diego from Seattle found for next year
7 Dec - 9 Dec
$59pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
10 Dec - 2 Jan
$68pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
3 Dec - 10 Dec
$73pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

Non-stop flights to San Diego from Seattle

Save time with Seattle to San Diego direct flight deals
11 Dec - 12 Dec
$96pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
SAN
San Diego
SAN
San Diego
Delta
Non-Stop
SEA
Seattle/Tacoma Intl
11 Dec - 13 Dec
$97pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
9 Dec - 11 Dec
$111pp
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
SAN
San Diego
SAN
San Diego
Delta
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to San Diego

Late deals on round-trip flights to San Diego from Seattle, departing today and this week
3 Dec - 10 Dec
$73pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
4 Dec - 9 Dec
$85pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
3 Dec - 9 Dec
$88pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to San Diego from Seattle

The cheapest one-way flights from Seattle to San Diego
5:20 am - 8:05 am
Alaska Airlines
Nonstop
2h 45m
SEA - SAN
Alaska Airlines
$68
Alaska Airlines
2:45 am - 5:26 am
Delta
Nonstop
2h 41m
SEA - SAN
Delta
$88
Delta
3:40 am - 12:09 pm
United Airlines
2 Stops
8h 29m
SEA - SAN
United Airlines
$92
United

Related info for your journey

Useful info, stats and facts about Seattle to San Diego flights.

Flight FAQs

From Seattle 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, Southwest, and Delta are some of the many airlines that have done so. 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.

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

Yes, there are multiple flights from Seattle to San Diego for under $100. The cheapest flight booked recently is on Frontier for just $59, but on average you can expect to pay $89.

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

Cheapflights has at least 20 direct flights from Seattle to San Diego under $100. A good price for a nonstop flight from Seattle to San Diego is less than $140.

Are there last-minute flights available from Seattle to San Diego for under $100?

There are currently 20+ open flights from Seattle to San Diego within the next 7 days for less than $100.

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

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

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

24 flight departures from Seattle/Tacoma Intl to San Diego per day on average.
Morning (6am - Noon) - 38% of flight departures
Afternoon (Noon - 6pm) - 42% of flight departures
Evening (6pm - Midnight) - 21% 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 23 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 to San Diego?

Airlines like Delta, Alaska Airlines, and Frontier fly from Seattle to San Diego in about 2h 33m. The time it takes to get you to your destination can typically vary by up to 3h 35m. Seattle and San Diego are separated by a distance of 1057 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Currently priced at $59, Frontier will fly you from Seattle to San Diego and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Alaska Airlines - these airlines can fly you to your destination from $96 and $116, respectively. Frontier is priced at 66% lower than the current average price of a flight leaving 3 months from now.

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

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $34. Users have also found prices from $49 and $53 on Frontier and Delta, respectively.

Alternative routes for Seattle to San Diego

Destination information for San Diego

Things to know before you go. Useful info for your trip from Seattle to San Diego
Flight duration
2h 47m
Average temperature for November in San Diego
71.6 °F
Avg rainfall for November in San Diego
2.0 ″

Airports servicing Seattle

Airports servicing San Diego

Top 8 airlines from Seattle to San Diego

The chart below displays the airlines Cheapflights users traveling from Seattle 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 to San Diego

Afternoon Noon to 6 PM 46% of SEA to SAN departures
Evening 6 PM to midnight 30% of SEA to SAN departures
Morning 6 AM to noon 15% of SEA to SAN departures
Early morning Midnight to 6 AM 9% of SEA to SAN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to San Diego
Sunday
13 daily flights
Monday
17 daily flights
Tuesday
16 daily flights
Wednesday
15 daily flights
Thursday
4 daily flights
Friday
7 daily flights
Saturday
11 daily flights
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