$158+ Cheap flights from Chicago (CHI) 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
Jul 25 — Aug 11
Round-trip
1 adult, Economy
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Find cheap flights from Chicago 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 Chicago to Fremont are usually found in September or October, booked 69 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap flight deals from Chicago to Fremont
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Best
Last-minute
One-way
Cheapest flights from Chicago to FremontExplore the most affordable flight options available from Chicago to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.
Explore the most affordable flight options available from Chicago to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.
This Frontier deal was found by Cheapflights users on 6/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:05 am
MDW
- SFO
1 stop15h 13m
Frontier
Mon 7/2711:00 pm
SFO
- MDW
1 stop10h 07m
Frontier
Deal found 6/21![Frontier logo]()
$307
This Frontier deal was found by Cheapflights users on 6/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:05 am
ORD
- SFO
1 stop14h 13m
Frontier
Mon 7/278:23 pm
SFO
- ORD
1 stop7h 54m
Frontier
Deal found 6/20![Frontier logo]()
$307
This Frontier deal was found by Cheapflights users on 6/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:15 am
ORD
- SFO
1 stop10h 10m
Frontier
Tue 7/289:00 pm
SFO
- ORD
1 stop6h 37m
Frontier
Deal found 6/20![Frontier logo]()
$308
This Frontier deal was found by Cheapflights users on 6/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:05 am
MDW
- SFO
1 stop15h 13m
Frontier
Wed 7/2911:00 pm
SFO
- MDW
1 stop10h 07m
Frontier
Deal found 6/25![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 6/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:05 am
ORD
- SFO
1 stop14h 13m
Frontier
Mon 7/278:23 pm
SFO
- ORD
1 stop7h 54m
Frontier
Deal found 6/25![Frontier logo]()
$309
This Trip.com deal was found by Cheapflights users on 6/21. 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.
Sat 8/811:06 am
MDW
- SFO
1 stop10h 07m
Frontier
Wed 8/1211:05 pm
SFO
- MDW
1 stop8h 46m
Frontier
Deal found 6/21![Frontier logo]()
$310
This Orbitz deal was found by Cheapflights users on 6/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:20 am
ORD
- SFO
1 stop7h 29m
Multiple Airlines
Fri 7/179:00 pm
SFO
- ORD
1 stop6h 37m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:15 am
ORD
- SFO
1 stop14h 37m
Frontier
Wed 7/228:23 pm
SFO
- ORD
1 stop7h 54m
Frontier
Deal found 6/20![Frontier logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Sat 12/122:03 pm
ORD
- SFO
1 stop7h 46m
Alaska Airlines
Mon 1/412:02 pm
SFO
- ORD
1 stop9h 39m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$312
This Trip.com deal was found by Cheapflights users on 6/21. 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.
Fri 7/1012:11 pm
MDW
- SFO
1 stop9h 07m
Frontier
Tue 7/1410:10 pm
SFO
- MDW
1 stop10h 57m
Frontier
Deal found 6/21![Frontier logo]()
$313
This CheapOair deal was found by Cheapflights users on 6/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:06 am
ORD
- SFO
1 stop15h 09m
Frontier
Fri 10/29:00 pm
SFO
- ORD
1 stop6h 42m
Frontier
Deal found 6/25![Frontier logo]()
$313
This Gotogate deal was found by Cheapflights users on 6/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:05 am
ORD
- SFO
1 stop14h 13m
Multiple Airlines
Sat 7/257:04 pm
SFO
- ORD
1 stop7h 56m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$314
Best flights from Chicago to FremontDiscover carefully curated flight deals from Chicago to Fremont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 25, 2026.
Discover carefully curated flight deals from Chicago to Fremont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 25, 2026.
This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:35 pm
ORD
- SFO
Nonstop4h 57m
United Airlines
Wed 8/126:00 am
SFO
- ORD
Nonstop4h 29m
United Airlines
Deal found 6/22![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 6/24. 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.
Thu 8/1310:15 am
MDW
- SFO
Nonstop4h 35m
Southwest
Tue 8/1811:40 pm
SFO
- MDW
Nonstop4h 10m
Southwest
Deal found 6/24![Southwest logo]()
$332
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:40 pm
ORD
- SFO
1 stop6h 12m
Delta
Tue 8/41:30 pm
SFO
- ORD
1 stop6h 00m
Delta
Deal found 6/22![Delta logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 6/24. 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.
Tue 7/286:00 am
ORD
- SFO
2 stops10h 51m
Alaska Airlines
Fri 7/317:20 am
SFO
- ORD
1 stop19h 40m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$422
This KAYAK deal was found by Cheapflights users on 6/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:17 pm
ORD
- SFO
Nonstop4h 42m
American Airlines
Tue 7/144:20 pm
SFO
- ORD
Nonstop4h 40m
American Airlines
Deal found 6/20![American Airlines logo]()
$450
This Sun Country Air deal was found by Cheapflights users on 6/20. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:05 pm
ORD
- SFO
1 stop15h 01m
Sun Country Air
Sat 7/2511:59 pm
SFO
- ORD
1 stop15h 40m
Sun Country Air
Deal found 6/20![Sun Country Air logo]()
$455
This Southwest deal was found by Cheapflights users on 6/24. 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 8/249:10 pm
MDW
- SFO
Nonstop4h 35m
Southwest
Sat 8/298:00 am
SFO
- MDW
Nonstop4h 00m
Southwest
Deal found 6/24![Southwest logo]()
$332
This United Airlines deal was found by Cheapflights users on 6/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:10 am
ORD
- SFO
Nonstop4h 37m
United Airlines
Mon 7/203:10 pm
SFO
- ORD
Nonstop4h 28m
United Airlines
Deal found 6/20![United Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 6/21. 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.
Fri 10/3012:30 pm
MDW
- SFO
1 stop6h 48m
Delta
Sun 11/112:40 am
SFO
- MDW
1 stop9h 11m
Delta
Deal found 6/21![Delta logo]()
$364
This Southwest deal was found by Cheapflights users on 6/20. 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.
Mon 7/209:30 pm
MDW
- SFO
Nonstop4h 45m
Southwest
Mon 7/2711:40 pm
SFO
- MDW
Nonstop4h 15m
Southwest
Deal found 6/20![Southwest logo]()
$335
This United Airlines deal was found by Cheapflights users on 6/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:10 am
ORD
- SFO
Nonstop4h 37m
United Airlines
Thu 7/233:10 pm
SFO
- ORD
Nonstop4h 28m
United Airlines
Deal found 6/23![United Airlines logo]()
$366
This Southwest deal was found by Cheapflights users on 6/24. 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.
Thu 11/59:30 pm
MDW
- SFO
Nonstop4h 50m
Southwest
Mon 11/161:05 pm
SFO
- MDW
1 stop6h 45m
Southwest
Deal found 6/24![Southwest logo]()
$345
This Delta deal was found by Cheapflights users on 6/21. 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 8/203:51 pm
ORD
- SFO
1 stop7h 11m
Delta
Sun 8/237:13 am
SFO
- ORD
1 stop8h 27m
Delta
Deal found 6/21![Delta logo]()
$391
This United Airlines deal was found by Cheapflights users on 6/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:40 am
ORD
- SFO
Nonstop4h 45m
United Airlines
Sat 9/263:00 pm
SFO
- ORD
Nonstop4h 20m
United Airlines
Deal found 6/23![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 6/23. 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 10/15:10 am
MDW
- SFO
2 stops8h 00m
Southwest
Mon 10/511:40 pm
SFO
- MDW
Nonstop4h 10m
Southwest
Deal found 6/23![Southwest logo]()
$350
This Southwest deal was found by Cheapflights users on 6/20. 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 8/12:55 pm
MDW
- SFO
2 stops8h 40m
Southwest
Wed 8/56:00 pm
SFO
- MDW
1 stop8h 30m
Southwest
Deal found 6/20![Southwest logo]()
$354
This United Airlines deal was found by Cheapflights users on 6/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/117:30 am
ORD
- SFO
Nonstop4h 49m
United Airlines
Wed 7/224:21 pm
SFO
- ORD
Nonstop4h 38m
United Airlines
Deal found 6/20![United Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 6/20. 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.
Fri 9/43:20 pm
MDW
- SFO
1 stop8h 35m
Southwest
Mon 9/711:40 pm
SFO
- MDW
Nonstop4h 10m
Southwest
Deal found 6/20![Southwest logo]()
$354
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:36 am
ORD
- SFO
1 stop6h 34m
Delta
Fri 7/36:19 pm
SFO
- ORD
2 stops12h 16m
Delta
Deal found 6/23![Delta logo]()
$506
This Southwest deal was found by Cheapflights users on 6/21. 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.
Wed 8/510:30 am
MDW
- SFO
2 stops7h 30m
Southwest
Wed 8/125:40 am
SFO
- MDW
2 stops9h 30m
Southwest
Deal found 6/21![Southwest logo]()
$359
This Southwest deal was found by Cheapflights users on 6/24. 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.
Thu 8/274:00 pm
MDW
- SFO
1 stop6h 35m
Southwest
Mon 8/317:00 am
SFO
- MDW
2 stops8h 20m
Southwest
Deal found 6/24![Southwest logo]()
$360
This Southwest deal was found by Cheapflights users on 6/20. 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.
Fri 9/44:55 pm
MDW
- SFO
1 stop8h 10m
Southwest
Tue 9/85:40 am
SFO
- MDW
2 stops9h 30m
Southwest
Deal found 6/20![Southwest logo]()
$366
This Southwest deal was found by Cheapflights users on 6/22. 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 8/1510:30 am
MDW
- SFO
Nonstop4h 30m
Southwest
Sun 8/2311:40 pm
SFO
- MDW
Nonstop4h 10m
Southwest
Deal found 6/22![Southwest logo]()
$368
Last-minute flights from Chicago to FremontDiscover last-minute flight deals from Chicago to Fremont. Data last updated June 25, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Fremont. Data last updated June 25, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:55 am
ORD
- SFO
1 stop15h 00m
Frontier
Sun 8/23:43 pm
SFO
- ORD
1 stop11h 54m
Frontier
Deal found 6/24![Frontier logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Tue 7/79:57 pm
ORD
- SFO
1 stop15h 30m
Frontier
Mon 7/136:00 am
SFO
- ORD
1 stop12h 52m
Frontier
Deal found 6/21![Frontier logo]()
$313
This Trip.com deal was found by Cheapflights users on 6/21. 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.
Fri 7/1012:11 pm
MDW
- SFO
1 stop9h 07m
Frontier
Tue 7/1410:10 pm
SFO
- MDW
1 stop10h 57m
Frontier
Deal found 6/21![Frontier logo]()
$313
This Frontier deal was found by Cheapflights users on 6/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:15 am
ORD
- SFO
1 stop10h 10m
Frontier
Tue 7/289:00 pm
SFO
- ORD
1 stop6h 37m
Frontier
Deal found 6/20![Frontier logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:15 am
ORD
- SFO
1 stop14h 37m
Frontier
Wed 7/228:23 pm
SFO
- ORD
1 stop7h 54m
Frontier
Deal found 6/20![Frontier logo]()
$311
This Orbitz deal was found by Cheapflights users on 6/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:20 am
ORD
- SFO
1 stop7h 29m
Multiple Airlines
Fri 7/179:00 pm
SFO
- ORD
1 stop6h 37m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$310
This Frontier deal was found by Cheapflights users on 6/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:05 am
ORD
- SFO
1 stop14h 13m
Frontier
Mon 7/278:23 pm
SFO
- ORD
1 stop7h 54m
Frontier
Deal found 6/20![Frontier logo]()
$307
This Gotogate deal was found by Cheapflights users on 6/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:05 am
ORD
- SFO
1 stop14h 13m
Multiple Airlines
Sat 7/257:04 pm
SFO
- ORD
1 stop7h 56m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$314
This Frontier deal was found by Cheapflights users on 6/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:05 am
MDW
- SFO
1 stop15h 13m
Frontier
Mon 7/2711:00 pm
SFO
- MDW
1 stop10h 07m
Frontier
Deal found 6/21![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Sat 7/257:05 am
ORD
- SFO
1 stop14h 13m
Frontier
Thu 7/309:00 pm
SFO
- ORD
1 stop6h 37m
Frontier
Deal found 6/24![Frontier logo]()
$312
This Frontier deal was found by Cheapflights users on 6/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:05 am
MDW
- SFO
1 stop15h 13m
Frontier
Wed 7/2911:00 pm
SFO
- MDW
1 stop10h 07m
Frontier
Deal found 6/25![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 6/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:05 am
ORD
- SFO
1 stop14h 13m
Frontier
Mon 7/278:23 pm
SFO
- ORD
1 stop7h 54m
Frontier
Deal found 6/25![Frontier logo]()
$309
One-way flights from Chicago to FremontSearch for one-way flight options from Chicago to Fremont. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
Search for one-way flight options from Chicago to Fremont. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
This Frontier deal was found by Cheapflights users on 6/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:25 am
MDW
- SFO
1 stop12h 55m
Frontier
Deal found 6/25![Frontier logo]()
$158
This Booking.com deal was found by Cheapflights users on 6/22. 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.
Sat 7/259:57 pm
ORD
- SFO
1 stop28h 26m
Frontier
Deal found 6/22![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Tue 7/219:57 pm
ORD
- SFO
2 stops24h 48m
Frontier
Deal found 6/21![Frontier logo]()
$159
This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:05 am
MDW
- SFO
1 stop15h 13m
Frontier
Deal found 6/24![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 9/22:41 pm
ORD
- SFO
2 stops21h 34m
Frontier
Deal found 6/24![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/297:15 am
ORD
- SFO
2 stops16h 23m
Frontier
Deal found 6/24![Frontier logo]()
$161
This CheapOair deal was found by Cheapflights users on 6/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:17 pm
ORD
- SFO
1 stop14h 29m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:13 pm
ORD
- SFO
1 stop25h 17m
Frontier
Deal found 6/20![Frontier logo]()
$164
This Southwest deal was found by Cheapflights users on 6/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:30 pm
MDW
- SFO
Nonstop4h 45m
Southwest
Deal found 6/25![Southwest logo]()
$165
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Tue 7/289:35 pm
ORD
- SFO
Nonstop4h 57m
United Airlines
Deal found 6/25![United Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:20 pm
MDW
- SFO
2 stops22h 47m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:15 am
ORD
- SFO
2 stops16h 23m
Frontier
Deal found 6/22![Frontier logo]()
$166
Find flight deals from Chicago to Fremont
Keep the following information in mind while searching for Chicago to Fremont flight deals. Data was last updated June 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $307 (Frontier) |
One-way from | $158 (Frontier) |
Popular in | June |
Cheapest in | September |
Average price | $461 |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago 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 June 25, 2026.
Use the filters below to find and compare flights from Chicago to Fremont that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoSan Francisco
ORD - SFO
ORDSFO
Chicago O'Hare Intl
Wed 7/22
9:35 pm-12:32 am
Nonstop4h 57m
San Francisco
Wed 8/12
6:00 am-12:29 pm
Nonstop4h 29m
$329
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Thu 8/13
10:15 am-12:50 pm
Nonstop4h 35m
San Francisco
Tue 8/18
11:40 pm-5:50 am
Nonstop4h 10m
$332
Quickest round-trip
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Mon 8/24
9:10 pm-11:45 pm
Nonstop4h 35m
San Francisco
Sat 8/29
8:00 am-2:00 pm
Nonstop4h 00m
$332
ChicagoSan Francisco
ORD - SFO
ORDSFO
Chicago O'Hare Intl
Sat 7/18
6:10 am-8:47 am
Nonstop4h 37m
San Francisco
Mon 7/20
3:10 pm-9:38 pm
Nonstop4h 28m
$332
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Mon 7/20
9:30 pm-12:15 am
Nonstop4h 45m
San Francisco
Mon 7/27
11:40 pm-5:55 am
Nonstop4h 15m
$335
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Thu 11/5
9:30 pm-12:20 am
Nonstop4h 50m
San Francisco
Mon 11/16
1:05 pm-9:50 pm
1 stop6h 45m
$345
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Thu 10/1
5:10 am-11:10 am
2 stops8h 00m
San Francisco
Mon 10/5
11:40 pm-5:50 am
Nonstop4h 10m
$350
ChicagoSan Francisco
ORD - SFO
ORDSFO
Chicago O'Hare Intl
Thu 7/30
7:40 pm-11:52 pm
1 stop6h 12m
San Francisco
Tue 8/4
1:30 pm-9:30 pm
1 stop6h 00m
$352
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Sat 8/1
2:55 pm-9:35 pm
2 stops8h 40m
San Francisco
Wed 8/5
6:00 pm-4:30 am
1 stop8h 30m
$354
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Fri 9/4
3:20 pm-9:55 pm
1 stop8h 35m
San Francisco
Mon 9/7
11:40 pm-5:50 am
Nonstop4h 10m
$354
Showing 1-10 of 46 resultsSorted by cheapest first
Best time to book a flight from Chicago to Fremont
Have a flexible travel schedule? Discover the best time to fly to Fremont from Chicago with our price prediction graph.
MDW-SFO
ORD-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 Chicago to Fremont
CHI-FR8
MDW-SFO
ORD-SFO
What is the cheapest time of day to fly from CHI to FR8?
Find hourly flight availability from Chicago 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 June 25, 2026.
It’s typically best to fly out from Chicago to Fremont in the afternoon. Doing so could potentially save you 14% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from Chicago to Fremont
Explore weekly flight availability from Chicago 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 June 25, 2026.
The most flights from CHI to FR8 are scheduled on a Thursday (93 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (49 on average).
How much does it cost to fly round-trip from Chicago to Fremont?
What is the cheapest day to fly from Chicago to Fremont?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Fremont. Price data was last updated on June 20, 2026.
Travelers seeking maximum savings on their Chicago to Fremont flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at noon 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 June 25, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, andUnited Airlines from Chicago to Fremont have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Chicago 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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Find flights from Chicago to Fremont, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Fremont flights
Browse other Chicago and Fremont flight options. Last updated on June 25, 2026.
Other flights from Chicago
Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on June 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Chicago to Fremont
Discover the top 7 airlines that operate flights from Chicago 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 June 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$213 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$363 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$138 | Average$428 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$159 | Average$301 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$165 | Average$366 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$207 | Average$476 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$240 | Average$470 | FlexibilityNo cancel fee | On-time69% |