Plan to arrive at SEA at least two hours before your flight. Use SEA Spot Saver for security appointments to reduce wait times.
Round-trip from | $177 (Delta) |
---|---|
One-way from | $94 (Southwest) |
Popular in | December |
Cheapest in | January |
Average price | $222 |
Good round-trip deal | $197 or less |
Good one-way deal | $127 or less |
Fly from
Fly to
Route
Depart
Return
Price
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Wed 11/19
7:55 pm-10:47 pm
Nonstop2h 52m
San Diego
Sun 11/23
6:15 am-9:36 am
Nonstop3h 21m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Mon 10/13
9:35 am-2:30 pm
1 stop4h 55m
San Diego
Mon 10/20
5:00 pm-10:45 pm
1 stop5h 45m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Sat 10/18
11:25 am-2:11 pm
Nonstop2h 46m
San Diego
Tue 10/21
3:15 pm-6:19 pm
Nonstop3h 04m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Thu 10/23
6:30 am-12:20 pm
1 stop5h 50m
San Diego
Mon 10/27
7:35 pm-12:50 am
1 stop5h 15m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Sat 10/11
7:45 pm-10:31 pm
Nonstop2h 46m
San Diego
Wed 10/15
1:40 pm-4:50 pm
Nonstop3h 10m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Tue 10/28
7:45 pm-10:31 pm
Nonstop2h 46m
San Diego
Tue 11/4
1:40 pm-4:50 pm
Nonstop3h 10m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Sat 10/11
7:05 am-3:45 pm
1 stop8h 40m
San Diego
Wed 10/15
3:35 pm-10:00 pm
2 stops6h 25m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Sat 10/11
3:28 pm-8:49 pm
1 stop5h 21m
San Diego
Tue 10/14
11:08 am-9:15 pm
2 stops10h 07m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Fri 11/28
5:50 am-11:35 am
1 stop5h 45m
San Diego
Tue 12/9
1:30 pm-10:55 pm
1 stop9h 25m
SeattleSan Diego
SEA - SAN
SEASAN
Seattle/Tacoma Intl
Sat 10/18
7:45 pm-10:31 pm
Nonstop2h 46m
San Diego
Thu 10/23
1:40 pm-4:50 pm
Nonstop3h 10m
To ensure you get the cheapest price possible for a flight from Seattle to San Diego, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, August is the cheapest month in which you can book a flight from Seattle to San Diego (average of $286). Flying from Seattle to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from Seattle to San Diego in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their Seattle to San Diego flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Las Vegas (LAS) – chosen by Cheapflights users on 80% of 1-stop itineraries from Seattle to San Diego on Cheapflights.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 8h 54m.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 8h 54m.
Flights via Las Vegas (LAS) offer the fastest connection on this route, with an average layover time of 6h 22m.
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Sep 2025
SEA - MKE
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$71 | Average$155 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$102 | Average$215 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$132 | Average$256 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$132 | Average$278 | FlexibilityNo cancel fee | On-time85% | |
Cheapest$156 | Average$320 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$156 | Average$306 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$176 | Average$321 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$226 | Average$311 | FlexibilityNo cancel fee | On-time71% |