$48+ Cheap flights from Fremont, CA to San Diego (SAN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAN
Sep 13 — Sep 201
Round-trip
1 adult, Economy
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Find cheap flights from Fremont to San Diego with Cheapflights
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.Cheapflights Tip: The best prices from Fremont to San Diego are usually found in October or September, booked 82 days in advance, depart on a Saturday or Tuesday and return on a Friday
Cheap flight deals from Fremont to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from Fremont to San DiegoExplore the most affordable flight options available from Fremont to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
Explore the most affordable flight options available from Fremont to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
This CheapOair deal was found by Cheapflights users on 8/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:07 pm -
Nonstop1h 43m
Tue 9/110:00 am -
Nonstop1h 52m
Deal found 8/11![Frontier logo]()
$75
This Super.com deal was found by Cheapflights users on 8/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:07 pm -
Nonstop1h 43m
Wed 9/210:00 am -
Nonstop1h 52m
Deal found 8/10![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:31 pm -
Nonstop1h 48m
Thu 10/84:36 pm -
Nonstop1h 46m
Deal found 8/13![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 8/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:07 pm -
Nonstop1h 43m
Sun 8/2310:00 am -
Nonstop1h 52m
Deal found 8/9![Frontier logo]()
$78
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:31 pm -
Nonstop1h 48m
Mon 10/510:28 am -
Nonstop1h 57m
Deal found 8/11![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:07 pm -
Nonstop1h 43m
Wed 9/91:38 pm -
Nonstop1h 55m
Deal found 8/12![Frontier logo]()
$80
This Booking.com deal was found by Cheapflights users on 8/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:07 pm -
Nonstop1h 43m
Thu 8/2010:00 am -
Nonstop1h 52m
Deal found 8/11![Frontier logo]()
$81
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:31 pm -
Nonstop1h 48m
Sun 10/410:28 am -
Nonstop1h 57m
Deal found 8/11![Frontier logo]()
$82
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:31 pm -
Nonstop1h 48m
Sun 10/410:28 am -
Nonstop1h 57m
Deal found 8/11![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:31 pm -
Nonstop1h 48m
Sun 10/410:28 am -
Nonstop1h 57m
Deal found 8/10![Frontier logo]()
$84
This Expedia deal was found by Cheapflights users on 8/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:31 pm -
Nonstop1h 48m
Sat 9/269:30 pm -
Nonstop1h 42m
Deal found 8/11![Multiple Airlines logo]()
$85
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:31 pm -
Nonstop1h 48m
Sat 10/39:03 am -
1 stop13h 25m
Deal found 8/11![Frontier logo]()
$86
Best flights from Fremont to San DiegoDiscover carefully curated flight deals from Fremont to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
Discover carefully curated flight deals from Fremont to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
This Southwest deal was found by Cheapflights users on 8/13. 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 10/3011:45 am -
2 stops8h 20m
Wed 11/44:30 pm -
Nonstop1h 40m
Deal found 8/13![Southwest logo]()
$120
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:13 pm -
Nonstop1h 46m
Mon 9/77:00 am -
Nonstop1h 46m
Deal found 8/13![Alaska Airlines logo]()
$142
This Southwest deal was found by Cheapflights users on 8/10. 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.
Thu 9/105:10 am -
1 stop3h 40m
Mon 9/148:10 pm -
Nonstop1h 35m
Deal found 8/10![Southwest logo]()
$135
This Southwest deal was found by Cheapflights users on 8/11. 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 9/285:10 am -
1 stop4h 25m
Thu 10/14:25 pm -
1 stop6h 50m
Deal found 8/11![Southwest logo]()
$143
This Southwest deal was found by Cheapflights users on 8/12. 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 10/146:55 am -
1 stop4h 50m
Sat 10/176:40 am -
1 stop5h 35m
Deal found 8/12![Southwest logo]()
$144
This Southwest deal was found by Cheapflights users on 8/13. 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.
Wed 9/912:05 pm -
2 stops6h 25m
Sat 9/1211:10 am -
1 stop6h 25m
Deal found 8/13![Southwest logo]()
$148
This Southwest deal was found by Cheapflights users on 8/12. 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.
Sat 10/36:05 am -
2 stops7h 00m
Mon 10/57:15 pm -
1 stop5h 20m
Deal found 8/12![Southwest logo]()
$149
This Southwest deal was found by Cheapflights users on 8/10. 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.
Sat 9/125:00 am -
2 stops6h 15m
Mon 9/145:05 pm -
1 stop6h 25m
Deal found 8/10![Southwest logo]()
$150
This Southwest deal was found by Cheapflights users on 8/11. 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 10/15:05 am -
2 stops7h 00m
Mon 10/54:25 pm -
2 stops5h 50m
Deal found 8/11![Southwest logo]()
$155
This Southwest deal was found by Cheapflights users on 8/12. 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.
Thu 11/58:00 am -
1 stop7h 50m
Sat 11/76:50 am -
2 stops7h 40m
Deal found 8/12![Southwest logo]()
$155
This Southwest deal was found by Cheapflights users on 8/11. 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 10/176:05 am -
2 stops5h 50m
Sun 10/186:35 am -
Nonstop1h 35m
Deal found 8/11![Southwest logo]()
$155
This Southwest deal was found by Cheapflights users on 8/10. 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 10/166:25 am -
Nonstop1h 35m
Mon 10/194:00 pm -
2 stops6h 15m
Deal found 8/10![Southwest logo]()
$161
Last-minute flights from Fremont to San DiegoDiscover last-minute flight deals from Fremont to San Diego. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from Fremont to San Diego. Data last updated August 14, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:07 pm -
Nonstop1h 43m
Tue 8/2510:00 am -
Nonstop1h 52m
Deal found 8/10![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:07 pm -
Nonstop1h 43m
Wed 9/91:38 pm -
Nonstop1h 55m
Deal found 8/12![Frontier logo]()
$80
This Booking.com deal was found by Cheapflights users on 8/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:07 pm -
Nonstop1h 43m
Thu 8/2010:00 am -
Nonstop1h 52m
Deal found 8/11![Frontier logo]()
$81
This Super.com deal was found by Cheapflights users on 8/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:07 pm -
Nonstop1h 43m
Sun 8/2310:00 am -
Nonstop1h 52m
Deal found 8/9![Frontier logo]()
$78
This CheapOair deal was found by Cheapflights users on 8/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:07 pm -
Nonstop1h 43m
Tue 9/110:00 am -
Nonstop1h 52m
Deal found 8/11![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:07 pm -
Nonstop1h 43m
Tue 9/110:00 am -
Nonstop1h 52m
Deal found 8/10![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 8/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:07 pm -
Nonstop1h 43m
Wed 9/210:00 am -
Nonstop1h 52m
Deal found 8/10![Frontier logo]()
$76
This Expedia deal was found by Cheapflights users on 8/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:31 pm -
Nonstop1h 48m
Sat 9/269:30 pm -
Nonstop1h 42m
Deal found 8/11![Multiple Airlines logo]()
$85
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:31 pm -
Nonstop1h 48m
Sun 10/410:28 am -
Nonstop1h 57m
Deal found 8/10![Frontier logo]()
$84
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:31 pm -
Nonstop1h 48m
Sat 10/39:03 am -
1 stop13h 25m
Deal found 8/11![Frontier logo]()
$86
This Booking.com deal was found by Cheapflights users on 8/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:31 pm -
Nonstop1h 48m
Mon 10/54:54 pm -
1 stop7h 20m
Deal found 8/14![Frontier logo]()
$82
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:31 pm -
Nonstop1h 48m
Sun 10/410:28 am -
Nonstop1h 57m
Deal found 8/11![Frontier logo]()
$83
One-way flights from Fremont to San DiegoSearch for one-way flight options from Fremont to San Diego. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
Search for one-way flight options from Fremont to San Diego. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
This Super.com deal was found by Cheapflights users on 8/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:07 pm -
Nonstop1h 43m
Deal found 8/14![Frontier logo]()
$48
This Booking.com deal was found by Cheapflights users on 8/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:31 pm -
Nonstop1h 48m
Deal found 8/11![Frontier logo]()
$49
This Southwest deal was found by Cheapflights users on 8/10. 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 9/116:45 am -
Nonstop1h 30m
Deal found 8/10![Southwest logo]()
$50
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:07 pm -
Nonstop1h 43m
Deal found 8/11![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:07 pm -
Nonstop1h 43m
Deal found 8/11![Frontier logo]()
$56
This Kissandfly.com deal was found by Cheapflights users on 8/11. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:25 am -
Nonstop1h 43m
Deal found 8/11![Alaska Airlines logo]()
$58
This Super.com deal was found by Cheapflights users on 8/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:52 pm -
Nonstop1h 45m
Deal found 8/13![Frontier logo]()
$59
This Super.com deal was found by Cheapflights users on 8/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:35 pm -
1 stop6h 16m
Deal found 8/11![Frontier logo]()
$61
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:55 pm -
Nonstop1h 50m
Deal found 8/13![United Airlines logo]()
$62
This Southwest deal was found by Cheapflights users on 8/10. 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.
Mon 8/316:15 pm -
Nonstop1h 30m
Deal found 8/10![Southwest logo]()
$63
Find flight deals from Fremont to San Diego
Keep the following information in mind while searching for Fremont to San Diego flight deals. Data was last updated August 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $75 (CheapOair) |
One-way from | $48 (Super.com) |
Popular in | March |
Cheapest in | October |
Average price | $198 |
Cheapflights Fare Finder
Customize your flight search to find flights from Fremont to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2026.
Use the filters below to find and compare flights from Fremont to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Fri 10/30
11:45 am-8:05 pm
2 stops8h 20m
San Diego
Wed 11/4
4:30 pm-6:10 pm
Nonstop1h 40m
$120
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Thu 9/10
5:10 am-8:50 am
1 stop3h 40m
San Diego
Mon 9/14
8:10 pm-9:45 pm
Nonstop1h 35m
$135
Quickest round-trip
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Sat 9/5
9:13 pm-10:59 pm
Nonstop1h 46m
San Diego
Mon 9/7
7:00 am-8:46 am
Nonstop1h 46m
$142
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Mon 9/28
5:10 am-9:35 am
1 stop4h 25m
San Diego
Thu 10/1
4:25 pm-11:15 pm
1 stop6h 50m
$143
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Wed 10/14
6:55 am-11:45 am
1 stop4h 50m
San Diego
Sat 10/17
6:40 am-12:15 pm
1 stop5h 35m
$144
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Wed 9/9
12:05 pm-6:30 pm
2 stops6h 25m
San Diego
Sat 9/12
11:10 am-5:35 pm
1 stop6h 25m
$148
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Sat 10/3
6:05 am-1:05 pm
2 stops7h 00m
San Diego
Mon 10/5
7:15 pm-12:35 am
1 stop5h 20m
$149
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Sat 9/12
5:00 am-11:15 am
2 stops6h 15m
San Diego
Mon 9/14
5:05 pm-11:30 pm
1 stop6h 25m
$150
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Thu 10/1
5:05 am-12:05 pm
2 stops7h 00m
San Diego
Mon 10/5
4:25 pm-10:15 pm
2 stops5h 50m
$155
San FranciscoSan Diego
SFO San Francisco - SAN San Diego
SFOSAN
San Francisco
Thu 11/5
8:00 am-3:50 pm
1 stop7h 50m
San Diego
Sat 11/7
6:50 am-2:30 pm
2 stops7h 40m
$155
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from Fremont to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Fremont with our price prediction graph.
SFO-SAN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Fremont to San Diego
FR8-SAN
SFO-SAN
What is the cheapest time of day to fly from FR8 to SAN?
Find hourly flight availability from Fremont to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2026.
One of the essential ways to save on airfare from Fremont to San Diego is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 13% on airfare.
Weekly flight availability from Fremont to San Diego
Explore weekly flight availability from Fremont to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 14, 2026.
The most flights from FR8 to SAN are scheduled on a Thursday (78 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (45 on average).
How much does it cost to fly round-trip from Fremont to San Diego?
Airfare is below average for this route at the moment.
Fremont to San Diego flights typically cost between $135 and $277 in August.The cheapest round-trip price found within the last 5 days was $75 on Frontier (Aug 25-Sep 1).
What is the cheapest day to fly from Fremont to San Diego?
Use this chart to determine the cheapest time to fly round-trip from Fremont to San Diego. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Fremont to San Diego flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated August 14, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andHawaiian Airlines from Fremont to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Related info for your journey
Find useful and relevant information for your journey from Fremont to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
Poway
Coronado
San Ysidro
La Mesa
Santee
Julian
Lemon Grove
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Top 8 airlines flying from Fremont to San Diego
Discover the top 8 airlines that operate flights from Fremont to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$38 | Average$146 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$53 | Average$214 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$77 | Average$251 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$77 | Average$177 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$78 | Average$184 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$97 | Average$219 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$97 | Average$222 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$217 | Average$410 | FlexibilityNo cancel fee | On-time71% |