Cheap flights from Seattle to San Diego

Round-trip
Economy
Seattle (SEA)
San Diego (SAN)
Depart
Return
Any month
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How to find the cheapest flight from
Seattle (SEA) to San Diego (SAN)

All the information you need to plan the best SEA to SAN flight in 2021: compare Seattle to San Diego flight prices with the expected peak season, weather and rainfall in San Diego.
SEA - SAN
Price
C$ 167 - C$ 303
SAN
Temperature
19 - 27 °C
SAN
Rainfall
1 - 70 mm

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

C$ 167

From Seattle to San Diego

One-way from

C$ 109

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?

Flights from Seattle to San Diego are generally found to be more expensive on Sunday. 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 to San Diego?

Find a great deal and save up to 0% by booking at least 13 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle to San Diego within the next two weeks, with the cheapest ticket starting at C$ 481.

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, April can be a great choice for travel to San Diego. Flights to San Diego from Seattle in April are about C$ 499 on average during April, but can be found for as low as C$ 357.

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

It’s typically best to fly out from Seattle to San Diego in the evening. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.

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

The best prices found for SEA to SAN flights for May, June
2 Jun - 2 Jun
C$ 136pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SAN
San Diego
SAN
San Diego
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
8 Jun - 16 Jun
C$ 142pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl
23 Jun - 24 Jun
C$ 143pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl

Seattle to San Diego 2021 flight deals

Cheap flights to San Diego from Seattle found for this year
2 Jun - 2 Jun
C$ 136pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SAN
San Diego
SAN
San Diego
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
8 Jun - 16 Jun
C$ 142pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl
23 Jun - 24 Jun
C$ 143pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl

Direct flights to San Diego from Seattle

Save time with Seattle to San Diego direct flight deals
2 Jun - 2 Jun
C$ 136pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SAN
San Diego
SAN
San Diego
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
8 Jun - 16 Jun
C$ 142pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl
23 Jun - 24 Jun
C$ 143pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
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
17 May - 14 Jun
C$ 240pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl
18 May - 25 May
C$ 288pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SAN
San Diego
SAN
San Diego
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
15 May - 22 May
C$ 299pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl

One-way flights to San Diego from Seattle

The cheapest one-way flights from Seattle to San Diego
10:09 a.m. - 3:13 p.m.
Spirit Airlines
1 stop
5h 04m
SEA - SAN
Spirit Airlines
C$ 110
Spirit
2:59 p.m. - 7:30 p.m.
Delta
1 stop
4h 31m
SEA - SAN
Delta
C$ 193
Delta
4:36 a.m. - 4:16 p.m.
United Airlines
2 stops
11h 40m
SEA - SAN
United Airlines
C$ 222
United

Related info for your journey

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

Flight FAQs

From Seattle to San Diego

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

To fly from Seattle to San Diego, you need to book a flight from Seattle/Tacoma Intl (SEA) to San Diego (SAN). Nonstop flights to San Diego from Seattle/Tacoma Intl take 4h 31m on average. When it comes time to book airfare, you have a few options: there are 14 outbound flights from Seattle/Tacoma Intl to San Diego offered by 5 different airlines.

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

Alaska Airlines and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travellers flying from Seattle/Tacoma Intl to San Diego are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

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

Alaska Airlines, Delta, and Spirit Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Seattle to San Diego for under C$ 243 on Cheapflights?

Yes, there are multiple flights from Seattle to San Diego for under C$ 243. The cheapest flight booked recently is on Alaska Airlines for just C$ 136, but on average you can expect to pay C$ 186.

Are there direct flights from Seattle to San Diego for under C$ 243 on Cheapflights?

Cheapflights has 20 direct flights from Seattle to San Diego under C$ 243. A good price for a direct flight from Seattle to San Diego is less than C$ 199.

Are there last-minute flights available from Seattle to San Diego for under C$ 243?

There are currently 20+ open flights from Seattle to San Diego within the next 7 days for less than C$ 243.

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

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

How popular is this flight route?

Flights from Seattle/Tacoma Intl to San Diego have been viewed 119 times in the past calendar month.

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

4 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?

The rainfall in Seattle is generally less than the rainfall in San Diego. This will continue over the next 17 days.

Is Seattle weather warmer or cooler than San Diego?

You can imagine temperatures to be in the 27 °C range in August. The weather in San Diego is generally hotter than Seattle's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Seattle to San Diego?

For as low as C$ 230, Alaska Airlines can have you in San Diego from Seattle in 2h 40m. There are 1701 km between Seattle and San Diego. All flights are typically direct.

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

Flying on Alaska Airlines is currently your cheapest option to San Diego, with prices starting at C$ 137. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at C$ 143 and C$ 208, respectively. Alaska Airlines is priced at 37% 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?

One-way options have recently been found by users for as low as C$ 72 on Delta. Other airlines that offer cheap prices include Alaska Airlines from C$ 109 and Spirit Airlines from C$ 110 one-way.

Related searches

Flights to San Diego from Seattle
Flights to Seattle Flights to San Diego

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Destination information for San Diego

Things to know before you go - useful duration and weather info for your trip from Seattle to San Diego.
Flight duration
2h 53m
Average temperature for May in San Diego
22.0 °C
Avg rainfall for May in San Diego
4.0 mm

Airports servicing Seattle

Airports servicing San Diego

Top 4 airlines flying from Seattle to San Diego

The chart below displays the airlines Cheapflights users travelling 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
Alaska Airlines
C$ 58 C$ 161 No cancel fee 75%
Search Alaska Airlines flights
Delta
C$ 78 C$ 179 No cancel fee N/A
Search Delta flights
Spirit Airlines
C$ 79 C$ 183 No cancel fee 65%
Search Spirit Airlines flights
American Airlines
C$ 117 C$ 304 No cancel fee 71%
Search American Airlines flights

Hourly flight availability from Seattle to San Diego

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