Find cheap Southwest flights to San Diego
WAS — SAN
Nov 13 — Nov 201
Round-trip
1 adult, Economy
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Cheapest Southwest flights from USA to San DiegoExplore the most affordable Southwest flight options available from USA to San Diego. Find the lowest fares with prices last updated on October 14, 2026.
Explore the most affordable Southwest flight options available from USA to San Diego. Find the lowest fares with prices last updated on October 14, 2026.
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:05 am -
Nonstop1h 15m
Sat 11/144:30 pm -
Nonstop1h 25m
Deal found 10/13![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:55 pm -
Nonstop1h 40m
Tue 11/172:30 pm -
Nonstop1h 45m
Deal found 10/13![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:35 am -
1 stop3h 05m
Mon 11/96:25 pm -
Nonstop1h 20m
Deal found 10/10![Southwest logo]()
$123
Best Southwest flights from USA to San DiegoDiscover carefully curated Southwest flight deals from USA to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
Discover carefully curated Southwest flight deals from USA to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:35 pm -
Nonstop1h 10m
Mon 11/234:25 pm -
Nonstop1h 20m
Deal found 10/14![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:25 am -
Nonstop1h 20m
Sat 11/147:15 am -
Nonstop1h 25m
Deal found 10/12![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:20 am -
Nonstop1h 20m
Sat 11/146:30 pm -
Nonstop1h 25m
Deal found 10/13![Southwest logo]()
$117
Direct Southwest flights from USA to San DiegoExplore non-stop Southwest flight options from USA to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 14, 2026.
Explore non-stop Southwest flight options from USA to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 14, 2026.
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:05 am -
Nonstop1h 15m
Sat 11/144:30 pm -
Nonstop1h 25m
Deal found 10/13![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/53:50 pm -
Nonstop1h 40m
Mon 12/72:30 pm -
Nonstop1h 45m
Deal found 10/14![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:50 am -
Nonstop1h 35m
Sun 11/157:30 am -
Nonstop1h 45m
Deal found 10/10![Southwest logo]()
$137
Last-minute Southwest flights from USA to San DiegoDiscover last-minute Southwest flight deals from USA to San Diego. Data last updated October 14, 2026 and is based on user searches.
Discover last-minute Southwest flight deals from USA to San Diego. Data last updated October 14, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:05 am -
Nonstop1h 15m
Sat 11/144:30 pm -
Nonstop1h 25m
Deal found 10/13![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:55 pm -
Nonstop1h 40m
Tue 11/172:30 pm -
Nonstop1h 45m
Deal found 10/13![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:35 am -
1 stop3h 05m
Mon 11/96:25 pm -
Nonstop1h 20m
Deal found 10/10![Southwest logo]()
$123
One-way Southwest flights to San DiegoSearch for one-way Southwest flight options to San Diego. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
Search for one-way Southwest flight options to San Diego. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
This Southwest deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:25 am -
Nonstop1h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Southwest logo]()
$59
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1810:30 pm -
Nonstop1h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Southwest logo]()
$59
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:35 am -
1 stop3h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Southwest logo]()
$64
Flights to San Diego with Southwest at a glance
Find detailed information about Southwest flights from USA to San Diego. Explore the options provided by Southwest to plan your journey from USA to San Diego. Data last updated October 14, 2026.
Cheapflights Insights
Find cheap Southwest flights to San Diego
US0-SAN
PHX-SAN
SFO-SAN
How long is the flight to San Diego with Southwest?
On average, Southwest flights from the United States to San Diego take 4 hours 30 minutes. Flights to San Diego from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Southwest weekly flight availability to San Diego
The most flights to San Diego operated by Southwest are scheduled on a Monday (138 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (91 on average).
When is the best time to book a flight to San Diego with Southwest?
The best time to book a flight to San Diego with Southwest is 23 days before departure. On average, fares are higher if you book 2 days before departure.
When is the cheapest time to fly to San Diego with Southwest?
Users looking for the cheapest Southwest fares to San Diego should consider flying on Friday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at noon, when prices are usually at their highest.
FAQs about flights to San Diego with Southwest
Reviews of Southwest
See what Cheapflights users have to say about their Southwest experience.
Overview
Reviews
Southwest
4,215 reviews
Overview
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Recent reviews
8.0
|Oct 2026I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
10.0
|Sep 2026Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.
4.0
|Sep 2026It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
10.0
|Sep 2026I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
10.0
|Aug 2026great
1 out of 1405
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