Find cheap Southwest flights to San Francisco
RDU — SFO
Aug 26 — Sep 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Leverage Cheapflights for Your Next Trip
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Find Southwest flight deals to San Francisco
Cheapest
Best
Direct
Last-minute
One-way
Cheapest Southwest flights from USA to San FranciscoExplore the most affordable Southwest flight options available from USA to San Francisco. Find the lowest fares with prices last updated on July 27, 2026.
Explore the most affordable Southwest flight options available from USA to San Francisco. Find the lowest fares with prices last updated on July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 8/139:00 am
LAX
- SFO
Nonstop1h 25m
Southwest
Mon 8/179:55 am
SFO
- LAX
Nonstop1h 30m
Southwest
Deal found 7/22![Southwest logo]()
$97
This Southwest deal was found by Cheapflights users on 7/22. 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 8/225:20 am
LAX
- SFO
1 stop6h 15m
Southwest
Mon 8/245:05 pm
SFO
- LAX
Nonstop1h 30m
Southwest
Deal found 7/22![Southwest logo]()
$107
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 8/209:00 am
LAX
- SFO
Nonstop1h 25m
Southwest
Thu 8/202:50 pm
SFO
- LAX
2 stops7h 30m
Southwest
Deal found 7/22![Southwest logo]()
$112
Best Southwest flights from USA to San FranciscoDiscover carefully curated Southwest flight deals from USA to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
Discover carefully curated Southwest flight deals from USA to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/23. 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 9/55:00 pm
LAX
- SFO
Nonstop1h 15m
Southwest
Tue 9/85:40 am
SFO
- LAX
1 stop7h 25m
Southwest
Deal found 7/23![Southwest logo]()
$107
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 9/1011:20 am
LAX
- SFO
2 stops7h 10m
Southwest
Mon 9/1411:30 am
SFO
- LAX
Nonstop1h 35m
Southwest
Deal found 7/23![Southwest logo]()
$112
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 10/225:45 am
LAX
- SFO
1 stop4h 20m
Southwest
Sat 10/245:00 am
SFO
- LAX
1 stop3h 50m
Southwest
Deal found 7/22![Southwest logo]()
$117
Direct Southwest flights from USA to San FranciscoExplore non-stop Southwest flight options from USA to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
Explore non-stop Southwest flight options from USA to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 9/105:50 pm
LAX
- SFO
Nonstop1h 15m
Southwest
Mon 9/143:00 pm
SFO
- LAX
Nonstop1h 30m
Southwest
Deal found 7/22![Southwest logo]()
$97
This Southwest deal was found by Cheapflights users on 7/26. 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.
Thu 8/205:50 pm
LAX
- SFO
Nonstop1h 15m
Southwest
Mon 8/249:55 am
SFO
- LAX
Nonstop1h 30m
Southwest
Deal found 7/26![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 7/27. 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.
Mon 12/216:00 am
LAX
- SFO
Nonstop1h 35m
Southwest
Thu 12/318:15 am
SFO
- LAX
Nonstop1h 30m
Southwest
Deal found 7/27![Southwest logo]()
$134
Last-minute Southwest flights from USA to San FranciscoDiscover last-minute Southwest flight deals from USA to San Francisco. Data last updated July 27, 2026 and is based on user searches.
Discover last-minute Southwest flight deals from USA to San Francisco. Data last updated July 27, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 8/139:00 am
LAX
- SFO
Nonstop1h 25m
Southwest
Mon 8/179:55 am
SFO
- LAX
Nonstop1h 30m
Southwest
Deal found 7/22![Southwest logo]()
$97
This Southwest deal was found by Cheapflights users on 7/22. 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 8/225:20 am
LAX
- SFO
1 stop6h 15m
Southwest
Mon 8/245:05 pm
SFO
- LAX
Nonstop1h 30m
Southwest
Deal found 7/22![Southwest logo]()
$107
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 8/209:00 am
LAX
- SFO
Nonstop1h 25m
Southwest
Thu 8/202:50 pm
SFO
- LAX
2 stops7h 30m
Southwest
Deal found 7/22![Southwest logo]()
$112
One-way Southwest flights to San FranciscoSearch for one-way Southwest flight options to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
Search for one-way Southwest flight options to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/27. 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 8/191:20 pm
LAX
- SFO
Nonstop1h 20m
Southwest
Deal found 7/27![Southwest logo]()
$59
This Southwest deal was found by Cheapflights users on 7/22. 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 9/81:25 pm
LAX
- SFO
2 stops5h 40m
Southwest
Deal found 7/22![Southwest logo]()
$64
This Southwest deal was found by Cheapflights users on 7/26. 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 10/175:40 am
LAX
- SFO
1 stop5h 15m
Southwest
Deal found 7/26![Southwest logo]()
$69
Flights to San Francisco with Southwest at a glance
Find detailed information about Southwest flights from USA to San Francisco. Explore the options provided by Southwest to plan your journey from USA to San Francisco. Data last updated July 27, 2026.
Cheapflights Insights
Find cheap Southwest flights to San Francisco
US0-SFO
LAX-SFO
How long is the flight to San Francisco with Southwest?
On average, Southwest flights from the United States to San Francisco take 4 hours 7 minutes. Flights to San Francisco 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 Francisco
The most flights to San Francisco operated by Southwest are scheduled on a Monday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).
When is the best time to book a flight to San Francisco with Southwest?
The best time to book a flight to San Francisco with Southwest is 52 days before departure. On average, fares are higher if you book 1 day before departure.
When is the cheapest time to fly to San Francisco with Southwest?
Users looking for the cheapest Southwest fares to San Francisco should consider flying on Saturday at noon, 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 Francisco with Southwest
Reviews of Southwest
See what Cheapflights users have to say about their Southwest experience.
Overview
Reviews
Southwest
4,229 reviews
Overview
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Recent reviews
10.0
|Jul 2026Good
8.0
|Jun 2026One delay in a 2 layover flight=a good trip. The crew was great.
6.0
|Jun 2026The seats were super cramped and couldn’t move without hitting other passengers
8.0
|Jun 2026The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
10.0
|Jun 2026On time and no problems
1 out of 1410
Popular Southwest flights
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airports nearby
California flights
Complete your trip
Domestic flights to San Francisco
Flights by cabin class
Flights from SFO
Flights to SFO
Popular destinations
Popular flights
Popular routes
Popular United States flight routes
Southwest