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 2022: compare Seattle to San Diego flight prices with the expected peak season, weather and rainfall in San Diego.
SEA - SAN
Price
C$ 137 - C$ 249
SAN
Temperature
14 - 22 °C
SAN
Precipitation
0 - 58 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$ 173

From Seattle/Tacoma Intl to San Diego

One-way from

C$ 161

One-way flight from Seattle/Tacoma Intl to San Diego

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
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.

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

Find a great deal and save up to 89% by booking at least 61 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$ 276.

What is the cheapest day to fly round-trip from Seattle to San Diego?

Travellers have found that booking a Monday departure is the best way to save up to 55% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

Cheap flights from Seattle to San Diego in January, February 2022

The best prices found for SEA to SAN flights for January, February
15 Feb - 18 Feb
C$ 149pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SAN
San Diego
SAN
San Diego
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
15 Feb - 16 Feb
C$ 160pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
15 Feb - 16 Feb
C$ 171pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to San Diego 2022 flight deals

Cheap flights to San Diego from Seattle found for this year
15 Feb - 18 Feb
C$ 149pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SAN
San Diego
SAN
San Diego
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
15 Feb - 17 Feb
C$ 160pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl
15 Feb - 16 Feb
C$ 171pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl

Direct flights to San Diego from Seattle

Save time with Seattle to San Diego direct flight deals
15 Feb - 18 Feb
C$ 149pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SAN
San Diego
SAN
San Diego
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
12 Feb - 16 Feb
C$ 174pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl
28 Feb - 3 Mar
C$ 187pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
SAN
San Diego
SAN
San Diego
Alaska Airlines
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
2 Feb - 16 Feb
C$ 325pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl
3 Feb - 23 Feb
C$ 350pp
SEA
Seattle/Tacoma Intl
Delta
Direct
SAN
San Diego
SAN
San Diego
Delta
Direct
SEA
Seattle/Tacoma Intl
3 Feb - 23 Feb
C$ 362pp
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
11:50 a.m. - 7:20 p.m.
Delta
1 stop
7h 30m
SEA - SAN
Delta
C$ 161
Delta
3:45 a.m. - 2:59 p.m.
United Airlines
2 stops
11h 14m
SEA - SAN
United Airlines
C$ 173
United
3:40 p.m. - 3:32 a.m.
Alaska Airlines
1 stop
11h 52m
SEA - SAN
Alaska Airlines
C$ 212

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 2h 41m on average. When it comes time to book airfare, you have a few options: there are 15 outbound flights from Seattle/Tacoma Intl to San Diego offered by 5 different airlines.

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$ 200 on Cheapflights?

Yes, there are multiple flights from Seattle to San Diego for under C$ 200. The cheapest flight booked recently is on Alaska Airlines for just C$ 149, but on average you can expect to pay C$ 195.

Are there direct flights from Seattle to San Diego for under C$ 200 on Cheapflights?

Cheapflights has 20 direct flights from Seattle to San Diego under C$ 200. A good price for a direct flight from Seattle to San Diego is less than C$ 236.

Are there last-minute flights available from Seattle to San Diego for under C$ 400?

There are currently 20+ open flights from Seattle to San Diego within the next 7 days for less than C$ 400.

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

Days when direct flights are available for this flight are: Sunday, Monday, Thursday, Friday, Saturday.

How popular is this Seattle to San Diego 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?

On average, you can expect to see 17 flights from Seattle to San Diego a day.
Early Morning (Midnight to 6am) - 12% of flight departures
Morning (6am - Midday) - 18% of flight departures
Afternoon (Noon - 6pm) - 35% of flight departures
Evening (6pm - Midnight) - 35% of flight departures

How long is the flight from Seattle to San Diego?

A quick flight from Seattle to San Diego can take about 2h 45m. Alaska Airlines provides one of the quickest options available for as low as C$ 149. Seattle and San Diego are separated by a distance of 1701 km. Both multi-stop and direct flights can be found to your destination and back.

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

Alaska Airlines, at C$ 149, was found to be the cheapest airline from Seattle to San Diego.Alternate airlines to your destination round-trip include Delta and Spirit Airlines. Alaska Airlines is priced at 33% 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$ 74 on Alaska Airlines. Other airlines that offer cheap prices include Delta from C$ 86 and United Airlines from C$ 173 one-way.

What are the most reliable airlines from Seattle to San Diego?

No one likes to see their flight delayed. When booking a flight from Seattle to San Diego consider choosing Japan Airlines (74%), Delta (74%) or KLM (74%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Seattle to San Diego?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Seattle to San Diego.

What are the cheapest flights from Seattle to San Diego?

The cheapest flight price from Seattle to San Diego is C$ 131. On average you can expect to pay C$ 183. The most popular route, (Seattle/Tacoma Intl - San Diego), can usually be booked for C$ 310.

COVID Restrictions

View COVID Travel Restrictions for San Diego, CA

Do I need a COVID test to fly to San Diego from Seattle?

Information is based on travel restrictions for travel to San Diego within the United States

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter San Diego.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to San Diego.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering San Diego.

Do I need a test to fly back to Seattle from San Diego?

Returning to Seattle/Tacoma Intl from San Diego

COVID-19 testing requirements
Visitors from San Diego must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from San Diego are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for San Diego, CA

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 from SEA to SAN
2h 53m
Average temperature for January in San Diego
20.0 °C
Avg rainfall for January in San Diego
68.0 mm

Airports servicing Seattle

Airports servicing San Diego

Top 4 airlines flying from Seattle/Tacoma Intl 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$ 74 C$ 203 No cancel fee 75%
Search Alaska Airlines flights
Delta
C$ 98 C$ 225 No cancel fee N/A
Search Delta flights
Spirit Airlines
C$ 100 C$ 231 No cancel fee 65%
Search Spirit Airlines flights
American Airlines
C$ 148 C$ 383 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.
Afternoon Noon to 6 PM 66% of flight departures
Morning 6 AM to noon 21% of flight departures
Evening 6 PM to midnight 10% of flight departures
Early morning Midnight to 6 AM 3% 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
10 daily flights
Monday
18 daily flights
Tuesday
16 daily flights
Wednesday
20 daily flights
Thursday
16 daily flights
Friday
16 daily flights
Saturday
11 daily flights
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