$50+ Cheap flights from San Diego (SAN) to Fremont, CA
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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
Sep 24 — Oct 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Diego to Fremont 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 San Diego to Fremont are usually found in October or September, booked 59 days in advance, depart on a Friday or Thursday and return on a Saturday
Cheap flight deals from San Diego to Fremont
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to FremontExplore the most affordable flight options available from San Diego to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2026.
Explore the most affordable flight options available from San Diego to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/810:00 am -
Nonstop1h 52m
Wed 9/164:31 pm -
Nonstop1h 48m
Deal found 8/24![Frontier logo]()
$72
This FlightHub deal was found by Cheapflights users on 8/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:28 am -
Nonstop1h 57m
Mon 9/214:31 pm -
Nonstop1h 48m
Deal found 8/24![Frontier logo]()
$73
This Trip.com deal was found by Cheapflights users on 8/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:50 am -
Nonstop1h 47m
Tue 10/64:31 pm -
Nonstop1h 48m
Deal found 8/24![Multiple Airlines logo]()
$74
This CheapOair deal was found by Cheapflights users on 8/21. 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.
Wed 9/91:38 pm -
Nonstop1h 55m
Fri 9/114:31 pm -
Nonstop1h 48m
Deal found 8/21![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Thu 10/1510:27 am -
Nonstop1h 50m
Wed 10/214:17 pm -
Nonstop1h 49m
Deal found 8/21![Frontier logo]()
$76
This Super.com deal was found by Cheapflights users on 8/21. 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.
Sat 9/121:38 pm -
Nonstop1h 55m
Mon 9/144:31 pm -
Nonstop1h 48m
Deal found 8/21![Frontier logo]()
$77
This Expedia deal was found by Cheapflights users on 8/25. 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.
Tue 9/1510:28 am -
Nonstop1h 57m
Thu 9/1711:17 am -
1 stop9h 00m
Deal found 8/25![Frontier logo]()
$78
This Booking.com deal was found by Cheapflights users on 8/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:54 pm -
1 stop7h 20m
Wed 10/74:31 pm -
Nonstop1h 48m
Deal found 8/22![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Sun 10/410:28 am -
Nonstop1h 57m
Wed 10/144:17 pm -
Nonstop1h 49m
Deal found 8/21![Frontier logo]()
$80
This FlightHub deal was found by Cheapflights users on 8/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:54 pm -
1 stop7h 20m
Sat 9/264:31 pm -
Nonstop1h 48m
Deal found 8/21![Frontier logo]()
$81
This Super.com deal was found by Cheapflights users on 8/21. 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.
Mon 9/2110:28 am -
Nonstop1h 57m
Fri 9/254:31 pm -
Nonstop1h 48m
Deal found 8/21![Frontier logo]()
$82
This Expedia deal was found by Cheapflights users on 8/25. 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.
Thu 9/1710:28 am -
Nonstop1h 57m
Mon 9/216:04 am -
1 stop9h 54m
Deal found 8/25![Frontier logo]()
$83
Best flights from San Diego to FremontDiscover carefully curated flight deals from San Diego to Fremont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2026.
Discover carefully curated flight deals from San Diego to Fremont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 25, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/24. 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.
Fri 10/306:51 pm -
Nonstop1h 42m
Sun 11/15:00 pm -
Nonstop1h 41m
Deal found 8/24![Alaska Airlines logo]()
$117
This Southwest deal was found by Cheapflights users on 8/24. 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 9/211:05 pm -
Nonstop1h 35m
Fri 9/256:45 am -
Nonstop1h 30m
Deal found 8/24![Southwest logo]()
$117
This Delta deal was found by Cheapflights users on 8/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:00 pm -
1 stop4h 42m
Tue 10/206:38 pm -
1 stop5h 04m
Deal found 8/21![Delta logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Fri 9/259:30 pm -
Nonstop1h 42m
Sun 9/277:08 am -
Nonstop1h 40m
Deal found 8/20![Alaska Airlines logo]()
$117
This Southwest deal was found by Cheapflights users on 8/23. 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.
Fri 9/181:20 pm -
2 stops5h 45m
Sun 9/209:20 pm -
Nonstop1h 45m
Deal found 8/23![Southwest logo]()
$132
This Southwest deal was found by Cheapflights users on 8/22. 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 9/171:20 pm -
2 stops5h 45m
Fri 9/186:45 am -
Nonstop1h 30m
Deal found 8/22![Southwest logo]()
$132
This Delta deal was found by Cheapflights users on 8/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:01 pm -
1 stop4h 49m
Fri 10/166:38 pm -
1 stop4h 17m
Deal found 8/21![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 8/20. 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 9/1211:10 am -
1 stop6h 25m
Tue 9/1512:05 pm -
2 stops6h 25m
Deal found 8/20![Southwest logo]()
$142
This Alaska Airlines deal was found by Cheapflights users on 8/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:05 am -
1 stop5h 59m
Sun 9/138:25 am -
Nonstop1h 43m
Deal found 8/22![Alaska Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 8/21. 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 10/14:25 pm -
2 stops5h 50m
Sun 10/410:35 pm -
Nonstop1h 40m
Deal found 8/21![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 8/20. 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 9/178:00 am -
2 stops5h 30m
Mon 9/217:00 am -
1 stop5h 35m
Deal found 8/20![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 8/23. 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.
Wed 10/77:00 am -
1 stop4h 25m
Wed 10/146:55 am -
2 stops7h 45m
Deal found 8/23![Southwest logo]()
$142
Last-minute flights from San Diego to FremontDiscover last-minute flight deals from San Diego to Fremont. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Fremont. Data last updated August 25, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 8/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:00 am -
Nonstop1h 52m
Wed 9/21:07 pm -
Nonstop1h 43m
Deal found 8/22![Frontier logo]()
$88
This eDestinos deal was found by Cheapflights users on 8/22. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:00 am -
Nonstop1h 52m
Thu 9/31:07 pm -
Nonstop1h 43m
Deal found 8/22![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 8/24. 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 9/110:00 am -
Nonstop1h 52m
Wed 9/21:07 pm -
Nonstop1h 43m
Deal found 8/24![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Wed 9/210:00 am -
Nonstop1h 52m
Thu 9/174:31 pm -
Nonstop1h 48m
Deal found 8/24![Frontier logo]()
$75
This Trip.com deal was found by Cheapflights users on 8/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:00 am -
Nonstop1h 52m
Thu 9/31:07 pm -
Nonstop1h 43m
Deal found 8/21![Frontier logo]()
$85
This Booking.com deal was found by Cheapflights users on 8/21. 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.
Wed 9/210:00 am -
Nonstop1h 52m
Tue 9/81:07 pm -
Nonstop1h 43m
Deal found 8/21![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Wed 9/210:00 am -
Nonstop1h 52m
Fri 9/184:31 pm -
Nonstop1h 48m
Deal found 8/24![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 8/23. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:00 am -
Nonstop1h 52m
Sun 9/61:07 pm -
Nonstop1h 43m
Deal found 8/23![Frontier logo]()
$89
One-way flights from San Diego to FremontSearch for one-way flight options from San Diego to Fremont. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
Search for one-way flight options from San Diego to Fremont. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
This Trip.com deal was found by Cheapflights users on 8/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:28 am -
Nonstop1h 57m
Deal found 8/25![Frontier logo]()
$50
This Trip.com deal was found by Cheapflights users on 8/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:00 am -
Nonstop1h 46m
Deal found 8/21![Alaska Airlines logo]()
$54
This Trip.com deal was found by Cheapflights users on 8/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:00 am -
Nonstop1h 46m
Deal found 8/20![Alaska Airlines logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Sun 8/3010:00 am -
Nonstop1h 52m
Deal found 8/21![Frontier logo]()
$58
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Thu 9/246:15 am -
Nonstop1h 46m
Deal found 8/25![United Airlines logo]()
$59
This CheapOair deal was found by Cheapflights users on 8/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:53 pm -
1 stop7h 27m
Deal found 8/23![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:01 pm -
Nonstop1h 55m
Deal found 8/23![Frontier logo]()
$62
This Super.com deal was found by Cheapflights users on 8/25. 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 11/2411:45 am -
Nonstop1h 55m
Deal found 8/25![Frontier logo]()
$63
This Super.com deal was found by Cheapflights users on 8/24. 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 9/610:00 am -
Nonstop1h 52m
Deal found 8/24![Frontier logo]()
$65
This Priceline deal was found by Cheapflights users on 8/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:00 am -
Nonstop1h 52m
Deal found 8/24![Frontier logo]()
$66
Find flight deals from San Diego to Fremont
Keep the following information in mind while searching for San Diego to Fremont flight deals. Data was last updated August 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $72 (Kiwi.com) |
One-way from | $49 (Frontier) |
Popular in | March |
Cheapest in | October |
Average price | $173 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Fremont 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 7,457,451 searches. Data last updated August 25, 2026.
Use the filters below to find and compare flights from San Diego to Fremont that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Fri 10/30
6:51 pm-8:33 pm
Nonstop1h 42m
San Francisco
Sun 11/1
5:00 pm-6:41 pm
Nonstop1h 41m
$117
Quickest round-trip
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Mon 9/21
1:05 pm-2:40 pm
Nonstop1h 35m
San Francisco
Fri 9/25
6:45 am-8:15 am
Nonstop1h 30m
$117
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Fri 9/25
9:30 pm-11:12 pm
Nonstop1h 42m
San Francisco
Sun 9/27
7:08 am-8:48 am
Nonstop1h 40m
$117
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Fri 9/18
1:20 pm-7:05 pm
2 stops5h 45m
San Francisco
Sun 9/20
9:20 pm-11:05 pm
Nonstop1h 45m
$132
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Thu 9/17
1:20 pm-7:05 pm
2 stops5h 45m
San Francisco
Fri 9/18
6:45 am-8:15 am
Nonstop1h 30m
$132
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Sat 9/12
11:10 am-5:35 pm
1 stop6h 25m
San Francisco
Tue 9/15
12:05 pm-6:30 pm
2 stops6h 25m
$142
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Thu 10/1
4:25 pm-10:15 pm
2 stops5h 50m
San Francisco
Sun 10/4
10:35 pm-12:15 am
Nonstop1h 40m
$142
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Thu 9/17
8:00 am-1:30 pm
2 stops5h 30m
San Francisco
Mon 9/21
7:00 am-12:35 pm
1 stop5h 35m
$142
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Wed 10/7
7:00 am-11:25 am
1 stop4h 25m
San Francisco
Wed 10/14
6:55 am-2:40 pm
2 stops7h 45m
$142
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Tue 10/13
3:00 pm-7:42 pm
1 stop4h 42m
San Francisco
Tue 10/20
6:38 pm-11:42 pm
1 stop5h 04m
$157
Showing 1-10 of 23 resultsSorted by cheapest first
Best time to book a flight from San Diego to Fremont
Have a flexible travel schedule? Discover the best time to fly to Fremont from San Diego with our price prediction graph.
SAN-SFO
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 San Diego to Fremont
SAN-FR8
SAN-SFO
What is the cheapest time of day to fly from SAN to FR8?
Find hourly flight availability from San Diego to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 25, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 19% on flights from San Diego to Fremont by exploring options for tickets at noon.
Weekly flight availability from San Diego to Fremont
Explore weekly flight availability from San Diego to Fremont. 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 25, 2026.
The most flights from SAN to FR8 are scheduled on a Sunday (92 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (51 on average).
How much does it cost to fly round-trip from San Diego to Fremont?
Airfare is below average for this route at the moment.
San Diego to Fremont flights typically cost between $114 and $233 in September.The cheapest round-trip price found within the last 5 days was $72 on Frontier (Sep 8-Sep 19).
What is the cheapest day to fly from San Diego to Fremont?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Fremont. Price data was last updated on August 22, 2026.
Travelers seeking maximum savings on their San Diego to Fremont flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Fremont
Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated August 25, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andUnited Airlines from San Diego to Fremont to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
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 San Diego to Fremont. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Diego
Popular flights
Top destinations
Alternative routes for San Diego to Fremont
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Fremont by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Fremont by cabin class
Find flights from San Diego to Fremont, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Fremont flights
Browse other San Diego and Fremont flight options. Last updated on August 25, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on August 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Diego to Fremont flights
Consider these flights traveling from San Diego to Fremont.
Top 7 airlines flying from San Diego to Fremont
Discover the top 7 airlines that operate flights from San Diego to Fremont. 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 7,457,451 searches. Data last updated August 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$43 | Average$115 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$58 | Average$152 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$68 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$77 | Average$250 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$97 | Average$209 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$102 | Average$218 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$217 | Average$386 | FlexibilityNo cancel fee | On-time71% |