$58+ Cheap flights from Irvine, CA 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SFO
Sep 1 — Sep 81
Round-trip
1 adult, Economy
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Find cheap flights from Irvine 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 Irvine to Fremont are usually found in October or September, booked 77 days in advance, depart on a Friday or Thursday and return on a Friday
Cheap flight deals from Irvine to Fremont
Cheapest
Best
Last-minute
One-way
Cheapest flights from Irvine to FremontExplore the most affordable flight options available from Irvine to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.
Explore the most affordable flight options available from Irvine to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.
This Frontier deal was found by Cheapflights users on 7/29. 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 8/187:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Thu 8/208:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/29![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/277:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Mon 8/313:38 pm
SFO
- LAX
1 stop7h 01m
Frontier
Deal found 7/29![Frontier logo]()
$88
This Booking.com deal was found by Cheapflights users on 7/29. 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.
Sat 9/57:13 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Mon 9/78:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/29![Frontier logo]()
$89
This Frontier deal was found by Cheapflights users on 8/1. 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 8/267:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Thu 8/278:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 8/1![Frontier logo]()
$90
This Trip.com deal was found by Cheapflights users on 7/30. 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.
Thu 8/277:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Thu 9/38:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/30![Frontier logo]()
$91
This Frontier deal was found by Cheapflights users on 7/30. 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 8/259:39 am
LAX
- SFO
1 stop13h 15m
Frontier
Wed 9/28:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/30![Frontier logo]()
$92
This Frontier deal was found by Cheapflights users on 7/29. 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 9/128:44 am
LAX
- SFO
Nonstop1h 38m
Frontier
Sat 9/199:00 am
SFO
- LAX
Nonstop1h 37m
Frontier
Deal found 7/29![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 7/30. 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 8/197:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Sat 8/228:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/30![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/1010:04 pm
LAX
- SFO
1 stop10h 10m
Frontier
Mon 9/1412:07 pm
SFO
- LAX
Nonstop1h 36m
Frontier
Deal found 7/28![Frontier logo]()
$95
This Frontier deal was found by Cheapflights users on 7/30. 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 10/27:44 pm
LAX
- SFO
Nonstop1h 43m
Frontier
Sun 10/412:07 pm
SFO
- LAX
Nonstop1h 36m
Frontier
Deal found 7/30![Frontier logo]()
$98
Best flights from Irvine to FremontDiscover carefully curated flight deals from Irvine to Fremont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
Discover carefully curated flight deals from Irvine to Fremont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
This Southwest deal was found by Cheapflights users on 7/28. 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 8/183:25 pm
LAX
- SFO
2 stops6h 15m
Southwest
Sat 8/294:55 pm
SFO
- LAX
Nonstop1h 35m
Southwest
Deal found 7/28![Southwest logo]()
$132
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 9/47:45 am
LAX
- SFO
Nonstop1h 33m
United Airlines
Sun 9/65:44 pm
SFO
- LAX
Nonstop1h 37m
United Airlines
Deal found 7/31![United Airlines logo]()
$169
This Southwest deal was found by Cheapflights users on 7/28. 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 pm
LAX
- SFO
Nonstop1h 15m
Southwest
Sat 9/196:10 am
SFO
- LAX
2 stops9h 25m
Southwest
Deal found 7/28![Southwest logo]()
$132
This Southwest deal was found by Cheapflights users on 7/30. 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 11/185:45 am
LAX
- SFO
2 stops7h 05m
Southwest
Wed 11/182:20 pm
SFO
- LAX
1 stop5h 35m
Southwest
Deal found 7/30![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 7/29. 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 9/91:25 pm
LAX
- SFO
2 stops7h 45m
Southwest
Thu 9/1011:55 am
SFO
- LAX
1 stop7h 25m
Southwest
Deal found 7/29![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 7/30. 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 8/207:30 am
LAX
- SFO
1 stop4h 25m
Southwest
Mon 8/242:50 pm
SFO
- LAX
2 stops7h 30m
Southwest
Deal found 7/30![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 7/30. 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 9/1411:55 am
SFO
- LAX
2 stops8h 55m
Southwest
Deal found 7/30![Southwest logo]()
$147
This Southwest deal was found by Cheapflights users on 7/29. 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 9/86:45 am
LAX
- SFO
2 stops7h 20m
Southwest
Wed 9/910:40 am
SFO
- LAX
2 stops8h 15m
Southwest
Deal found 7/29![Southwest logo]()
$147
This Southwest deal was found by Cheapflights users on 7/29. 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 9/217:50 am
LAX
- SFO
2 stops6h 50m
Southwest
Fri 9/257:00 am
SFO
- LAX
1 stop10h 30m
Southwest
Deal found 7/29![Southwest logo]()
$178
This Southwest deal was found by Cheapflights users on 7/28. 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 9/16:45 am
LAX
- SFO
1 stop6h 30m
Southwest
Fri 9/46:00 am
SFO
- LAX
Nonstop1h 30m
Southwest
Deal found 7/28![Southwest logo]()
$179
Last-minute flights from Irvine to FremontDiscover last-minute flight deals from Irvine to Fremont. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Irvine to Fremont. Data last updated August 2, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/29. 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 8/187:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Thu 8/208:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/29![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/187:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Wed 8/198:56 pm
SFO
- LAX
1 stop12h 33m
Frontier
Deal found 7/28![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 7/30. 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 8/197:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Sat 8/228:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/30![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/205:00 pm
LAX
- SFO
Nonstop1h 23m
Multiple Airlines
Wed 9/28:23 pm
SFO
- LAX
Nonstop1h 31m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$95
This Frontier deal was found by Cheapflights users on 7/30. 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 8/207:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Thu 8/278:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/30![Frontier logo]()
$97
This Expedia deal was found by Cheapflights users on 7/30. 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 8/257:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Wed 8/2611:20 am
SFO
- LAX
1 stop22h 09m
Frontier
Deal found 7/30![Frontier logo]()
$92
This Frontier deal was found by Cheapflights users on 8/1. 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 8/267:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Thu 8/278:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 8/1![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/277:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Mon 8/313:38 pm
SFO
- LAX
1 stop7h 01m
Frontier
Deal found 7/29![Frontier logo]()
$88
This Frontier deal was found by Cheapflights users on 7/30. 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 8/277:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Sun 9/68:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/30![Frontier logo]()
$89
This Trip.com deal was found by Cheapflights users on 7/30. 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.
Thu 8/277:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Thu 9/38:23 pm
SFO
- LAX
Nonstop1h 31m
Frontier
Deal found 7/30![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/317:07 pm
LAX
- SFO
Nonstop1h 33m
Frontier
Tue 9/18:56 pm
SFO
- LAX
1 stop12h 33m
Frontier
Deal found 7/29![Frontier logo]()
$98
One-way flights from Irvine to FremontSearch for one-way flight options from Irvine to Fremont. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
Search for one-way flight options from Irvine to Fremont. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
This Super.com deal was found by Cheapflights users on 7/30. 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 9/1511:30 am
LAX
- SFO
1 stop6h 54m
Frontier
Deal found 7/30![Frontier logo]()
$58
This Delta deal was found by Cheapflights users on 7/29. 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 8/2010:33 pm
LAX
- SFO
Nonstop1h 22m
Delta
Deal found 7/29![Delta logo]()
$59
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:50 am
LAX
- SFO
1 stop6h 56m
Frontier
Deal found 7/30![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/142:50 pm
LAX
- SFO
1 stop23h 39m
Frontier
Deal found 7/31![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/3110:22 pm
LAX
- SFO
1 stop21h 34m
Frontier
Deal found 7/30![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/52:50 pm
LAX
- SFO
1 stop27h 34m
Frontier
Deal found 7/30![Frontier logo]()
$64
This Frontier deal was found by Cheapflights users on 7/30. 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 8/199:39 am
LAX
- SFO
1 stop13h 15m
Frontier
Deal found 7/30![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/246:55 am
LAX
- SFO
1 stop9h 41m
Frontier
Deal found 7/28![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/1810:15 am
LAX
- SFO
1 stop9h 41m
Frontier
Deal found 7/29![Frontier logo]()
$68
This Southwest deal was found by Cheapflights users on 7/29. 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 12/55:15 am
LAX
- SFO
1 stop4h 10m
Southwest
Deal found 7/29![Southwest logo]()
$69
Find flight deals from Irvine to Fremont
Keep the following information in mind while searching for Irvine to Fremont flight deals. Data was last updated August 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $87 (Frontier) |
One-way from | $58 (Super.com) |
Popular in | June |
Cheapest in | October |
Average price | $192 |
Cheapflights Fare Finder
Customize your flight search to find flights from Irvine 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 2,558,603 searches. Data last updated August 2, 2026.
Use the filters below to find and compare flights from Irvine to Fremont that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Tue 8/18
3:25 pm-9:40 pm
2 stops6h 15m
San Francisco
Sat 8/29
4:55 pm-6:30 pm
Nonstop1h 35m
$132
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Sat 9/12
5:00 pm-6:15 pm
Nonstop1h 15m
San Francisco
Sat 9/19
6:10 am-3:35 pm
2 stops9h 25m
$132
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Wed 11/18
5:45 am-12:50 pm
2 stops7h 05m
San Francisco
Wed 11/18
2:20 pm-7:55 pm
1 stop5h 35m
$142
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Wed 9/9
1:25 pm-9:10 pm
2 stops7h 45m
San Francisco
Thu 9/10
11:55 am-7:20 pm
1 stop7h 25m
$142
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Thu 8/20
7:30 am-11:55 am
1 stop4h 25m
San Francisco
Mon 8/24
2:50 pm-10:20 pm
2 stops7h 30m
$142
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Thu 9/10
11:20 am-6:30 pm
2 stops7h 10m
San Francisco
Mon 9/14
11:55 am-8:50 pm
2 stops8h 55m
$147
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Tue 9/8
6:45 am-2:05 pm
2 stops7h 20m
San Francisco
Wed 9/9
10:40 am-6:55 pm
2 stops8h 15m
$147
Quickest round-trip
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Fri 9/4
7:45 am-9:18 am
Nonstop1h 33m
San Francisco
Sun 9/6
5:44 pm-7:21 pm
Nonstop1h 37m
$169
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Mon 9/21
7:50 am-2:40 pm
2 stops6h 50m
San Francisco
Fri 9/25
7:00 am-5:30 pm
1 stop10h 30m
$178
Los AngelesSan Francisco
LAX - SFO
LAXSFO
Los Angeles
Tue 9/1
6:45 am-1:15 pm
1 stop6h 30m
San Francisco
Fri 9/4
6:00 am-7:30 am
Nonstop1h 30m
$179
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Irvine to Fremont
Have a flexible travel schedule? Discover the best time to fly to Fremont from Irvine with our price prediction graph.
LAX-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 Irvine to Fremont
IR9-FR8
LAX-SFO
What is the cheapest time of day to fly from IR9 to FR8?
Find hourly flight availability from Irvine 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 2, 2026.
It’s typically best to fly out from Irvine to Fremont in the afternoon. Doing so could potentially save you 19% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from Irvine to Fremont
Explore weekly flight availability from Irvine 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 2, 2026.
The most flights from IR9 to FR8 are scheduled on a Friday (175 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (41 on average).
How much does it cost to fly round-trip from Irvine to Fremont?
Airfare is below average for this route at the moment.
Irvine to Fremont flights typically cost between $125 and $239 in August.The cheapest round-trip price found within the last 5 days was $87 on Frontier (Aug 18-Aug 20).
What is the cheapest day to fly from Irvine to Fremont?
Use this chart to determine the cheapest time to fly round-trip from Irvine to Fremont. Price data was last updated on October 12, 2025.
Travelers seeking maximum savings on their Irvine to Fremont flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday mornings 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 2, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Irvine to Fremont by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Related info for your journey
Find useful and relevant information for your journey from Irvine to Fremont. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Irvine and Fremont flights
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Top 9 airlines flying from Irvine to Fremont
Discover the top 9 airlines that operate flights from Irvine 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 2,558,603 searches. Data last updated August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$29 | Average$122 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$53 | Average$203 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$68 | Average$227 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$77 | Average$247 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$88 | Average$274 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$104 | Average$243 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$107 | Average$330 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$110 | Average$405 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$488 | Average$559 | FlexibilityNo cancel fee | On-timeN/A |