$132+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
May 24 — May 311
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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 July, booked 56 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap flight deals from Chicago to Fremont
Cheapest
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 April 24, 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 April 24, 2026.
This Frontier deal was found by Cheapflights users on 4/20. 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.
Sat 6/136:00 am
MDW
- SFO
1 stop15h 26m
Frontier
Mon 6/2210:10 pm
SFO
- MDW
1 stop11h 02m
Frontier
Deal found 4/20![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 4/20. 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
Thu 7/99:35 pm
SFO
- ORD
1 stop21h 18m
Frontier
Deal found 4/20![Frontier logo]()
$244
This Trip.com deal was found by Cheapflights users on 4/20. 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.
Thu 4/306:00 am
MDW
- SFO
1 stop13h 34m
Frontier
Mon 5/410:38 pm
SFO
- MDW
1 stop10h 31m
Frontier
Deal found 4/20![Frontier logo]()
$245
This Frontier deal was found by Cheapflights users on 4/20. 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 5/289:37 pm
ORD
- SFO
1 stop12h 24m
Frontier
Wed 6/1011:57 pm
SFO
- ORD
1 stop14h 08m
Frontier
Deal found 4/20![Frontier logo]()
$245
This Southwest deal was found by Cheapflights users on 4/20. 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 9/107:00 am
MDW
- SFO
1 stop8h 30m
Southwest
Wed 9/1611:40 pm
SFO
- MDW
Nonstop4h 10m
Southwest
Deal found 4/20![Southwest logo]()
$246
This Frontier deal was found by Cheapflights users on 4/20. 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 5/57:15 am
ORD
- SFO
1 stop14h 19m
Frontier
Wed 5/136:00 am
SFO
- ORD
1 stop12h 32m
Frontier
Deal found 4/20![Frontier logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/319:37 pm
ORD
- SFO
1 stop12h 24m
Frontier
Tue 6/98:21 pm
SFO
- ORD
1 stop7h 58m
Frontier
Deal found 4/19![Frontier logo]()
$247
This Southwest deal was found by Cheapflights users on 4/20. 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.
Wed 6/39:00 pm
MDW
- SFO
Nonstop4h 35m
Southwest
Sat 6/611:40 pm
SFO
- MDW
Nonstop4h 15m
Southwest
Deal found 4/20![Southwest logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Fri 6/196:55 am
ORD
- SFO
1 stop14h 31m
Frontier
Mon 6/228:21 pm
SFO
- ORD
1 stop7h 58m
Frontier
Deal found 4/21![Frontier logo]()
$248
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:12 am
ORD
- SFO
1 stop29h 16m
Frontier
Mon 6/153:59 pm
SFO
- ORD
1 stop11h 33m
Frontier
Deal found 4/21![Frontier logo]()
$249
This Expedia deal was found by Cheapflights users on 4/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:27 pm
MDW
- SFO
1 stop9h 07m
Frontier
Sun 5/3110:15 pm
SFO
- MDW
1 stop10h 54m
Frontier
Deal found 4/20![Frontier logo]()
$250
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:21 pm
ORD
- SFO
1 stop28h 18m
Frontier
Fri 5/86:00 am
SFO
- ORD
1 stop12h 32m
Frontier
Deal found 4/20![Frontier logo]()
$250
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 April 24, 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 April 24, 2026.
This Southwest deal was found by Cheapflights users on 4/20. 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 6/49:30 pm
MDW
- SFO
Nonstop4h 40m
Southwest
Tue 6/95:10 am
SFO
- MDW
Nonstop4h 10m
Southwest
Deal found 4/20![Southwest logo]()
$271
This Delta deal was found by Cheapflights users on 4/23. 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.
Sat 6/271:16 pm
MDW
- SFO
1 stop6h 57m
Delta
Thu 7/911:56 pm
SFO
- MDW
1 stop7h 12m
Delta
Deal found 4/23![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/1412:40 pm
ORD
- SFO
Nonstop4h 55m
United Airlines
Sat 5/1612:45 am
SFO
- ORD
Nonstop4h 22m
United Airlines
Deal found 4/23![United Airlines logo]()
$364
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:44 pm
ORD
- SFO
2 stops17h 46m
Alaska Airlines
Mon 6/2211:52 am
SFO
- ORD
1 stop9h 44m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$460
This Southwest deal was found by Cheapflights users on 4/21. 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.
Fri 5/297:40 pm
MDW
- SFO
1 stop6h 30m
Southwest
Tue 6/25:25 am
SFO
- MDW
Nonstop4h 10m
Southwest
Deal found 4/21![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 4/21. 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.
Sat 5/236:15 am
MDW
- SFO
1 stop7h 25m
Southwest
Tue 5/2611:25 pm
SFO
- MDW
Nonstop4h 15m
Southwest
Deal found 4/21![Southwest logo]()
$284
This Southwest deal was found by Cheapflights users on 4/20. 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 9/49:30 pm
MDW
- SFO
Nonstop4h 35m
Southwest
Wed 9/96:00 am
SFO
- MDW
1 stop6h 45m
Southwest
Deal found 4/20![Southwest logo]()
$293
This Delta deal was found by Cheapflights users on 4/19. 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 6/911:23 am
ORD
- SFO
1 stop8h 22m
Delta
Sun 7/511:39 am
SFO
- ORD
1 stop6h 52m
Delta
Deal found 4/19![Delta logo]()
$365
This United Airlines deal was found by Cheapflights users on 4/19. 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 6/286:10 am
ORD
- SFO
Nonstop4h 37m
United Airlines
Fri 7/36:34 pm
SFO
- ORD
Nonstop4h 25m
United Airlines
Deal found 4/19![United Airlines logo]()
$380
This Southwest deal was found by Cheapflights users on 4/22. 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 5/2310:00 am
MDW
- SFO
Nonstop4h 35m
Southwest
Wed 5/275:25 am
SFO
- MDW
Nonstop4h 10m
Southwest
Deal found 4/22![Southwest logo]()
$310
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/2211:09 am
ORD
- SFO
1 stop8h 40m
Delta
Sun 5/245:55 am
SFO
- ORD
1 stop9h 18m
Delta
Deal found 4/23![Delta logo]()
$381
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Wed 5/136:20 am
ORD
- SFO
Nonstop4h 51m
United Airlines
Sun 5/1712:45 am
SFO
- ORD
Nonstop4h 22m
United Airlines
Deal found 4/20![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 4/19. 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 6/66:10 am
ORD
- SFO
Nonstop4h 37m
United Airlines
Tue 7/74:21 pm
SFO
- ORD
Nonstop4h 38m
United Airlines
Deal found 4/19![United Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 4/20. 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 9/1010:15 am
MDW
- SFO
Nonstop4h 35m
Southwest
Sun 9/138:50 am
SFO
- MDW
Nonstop4h 15m
Southwest
Deal found 4/20![Southwest logo]()
$333
This Southwest deal was found by Cheapflights users on 4/23. 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 10/169:40 am
MDW
- SFO
Nonstop4h 40m
Southwest
Mon 10/195:30 am
SFO
- MDW
Nonstop4h 05m
Southwest
Deal found 4/23![Southwest logo]()
$344
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/294:40 pm
ORD
- SFO
Nonstop4h 57m
United Airlines
Sat 5/212:45 am
SFO
- ORD
Nonstop4h 22m
United Airlines
Deal found 4/21![United Airlines logo]()
$443
This Southwest deal was found by Cheapflights users on 4/19. 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 7/216:45 am
MDW
- SFO
1 stop6h 50m
Southwest
Mon 7/2711:40 pm
SFO
- MDW
Nonstop4h 15m
Southwest
Deal found 4/19![Southwest logo]()
$345
This Southwest deal was found by Cheapflights users on 4/19. 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 6/15:30 am
MDW
- SFO
2 stops9h 05m
Southwest
Wed 6/310:30 am
SFO
- MDW
1 stop7h 25m
Southwest
Deal found 4/19![Southwest logo]()
$351
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sat 5/910:30 am
ORD
- SFO
Nonstop4h 42m
United Airlines
Sat 8/226:34 pm
SFO
- ORD
Nonstop4h 21m
United Airlines
Deal found 4/23![United Airlines logo]()
$471
This Southwest deal was found by Cheapflights users on 4/21. 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.
Sat 5/306:10 pm
MDW
- SFO
Nonstop4h 35m
Southwest
Mon 6/811:40 pm
SFO
- MDW
Nonstop4h 15m
Southwest
Deal found 4/21![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 4/19. 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 6/146:10 am
ORD
- SFO
Nonstop4h 37m
United Airlines
Sun 7/56:34 pm
SFO
- ORD
Nonstop4h 25m
United Airlines
Deal found 4/19![United Airlines logo]()
$498
This Southwest deal was found by Cheapflights users on 4/23. 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 5/88:00 am
ORD
- SFO
2 stops8h 35m
Southwest
Tue 5/1211:25 am
SFO
- ORD
2 stops9h 30m
Southwest
Deal found 4/23![Southwest logo]()
$427
This Southwest deal was found by Cheapflights users on 4/23. 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.
Tue 5/267:45 am
ORD
- SFO
2 stops12h 45m
Southwest
Sat 5/307:45 am
SFO
- ORD
2 stops12h 35m
Southwest
Deal found 4/23![Southwest logo]()
$430
Last-minute flights from Chicago to FremontDiscover last-minute flight deals from Chicago to Fremont. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Fremont. Data last updated April 24, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Mon 4/277:50 am
ORD
- SFO
1 stop9h 54m
Frontier
Fri 5/111:16 pm
SFO
- ORD
1 stop7h 47m
Frontier
Deal found 4/20![Frontier logo]()
$248
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:21 pm
ORD
- SFO
1 stop28h 18m
Frontier
Fri 5/86:00 am
SFO
- ORD
1 stop12h 32m
Frontier
Deal found 4/20![Frontier logo]()
$250
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:21 pm
ORD
- SFO
1 stop28h 18m
Frontier
Sun 5/310:38 pm
SFO
- ORD
1 stop10h 54m
Frontier
Deal found 4/20![Frontier logo]()
$251
This Trip.com deal was found by Cheapflights users on 4/20. 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.
Thu 4/306:00 am
MDW
- SFO
1 stop13h 34m
Frontier
Mon 5/410:38 pm
SFO
- MDW
1 stop10h 31m
Frontier
Deal found 4/20![Frontier logo]()
$245
This Expedia deal was found by Cheapflights users on 4/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:15 am
MDW
- SFO
1 stop11h 49m
Frontier
Wed 5/611:59 pm
SFO
- MDW
1 stop12h 13m
Frontier
Deal found 4/20![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 4/20. 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 5/57:15 am
ORD
- SFO
1 stop14h 19m
Frontier
Wed 5/136:00 am
SFO
- ORD
1 stop12h 32m
Frontier
Deal found 4/20![Frontier logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/99:17 am
ORD
- SFO
2 stops10h 49m
Multiple Airlines
Tue 5/126:00 am
SFO
- ORD
1 stop12h 32m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$249
This Frontier deal was found by Cheapflights users on 4/20. 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.
Sat 5/93:07 pm
MDW
- SFO
1 stop9h 57m
Frontier
Sun 5/1711:59 pm
SFO
- MDW
1 stop12h 13m
Frontier
Deal found 4/20![Frontier logo]()
$251
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:37 pm
ORD
- SFO
1 stop28h 46m
Frontier
Fri 5/1511:59 pm
SFO
- ORD
1 stop9h 01m
Frontier
Deal found 4/20![Frontier logo]()
$244
This Frontier deal was found by Cheapflights users on 4/20. 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 5/289:37 pm
ORD
- SFO
1 stop12h 24m
Frontier
Wed 6/1011:57 pm
SFO
- ORD
1 stop14h 08m
Frontier
Deal found 4/20![Frontier logo]()
$245
This Expedia deal was found by Cheapflights users on 4/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:27 pm
MDW
- SFO
1 stop9h 07m
Frontier
Sun 5/3110:15 pm
SFO
- MDW
1 stop10h 54m
Frontier
Deal found 4/20![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/319:37 pm
ORD
- SFO
1 stop12h 24m
Frontier
Sun 6/78:48 pm
SFO
- ORD
1 stop7h 16m
Frontier
Deal found 4/19![Frontier logo]()
$247
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 April 24, 2026.
Search for one-way flight options from Chicago to Fremont. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 6/23:07 pm
MDW
- SFO
2 stops21h 34m
Frontier
Deal found 4/19![Frontier logo]()
$132
This flugladen.de deal was found by Cheapflights users on 4/21. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:37 pm
ORD
- SFO
1 stop28h 46m
Frontier
Deal found 4/21![Frontier logo]()
$132
This Trip.com deal was found by Cheapflights users on 4/20. 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.
Thu 4/306:00 am
MDW
- SFO
1 stop13h 34m
Frontier
Deal found 4/20![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Fri 6/196:55 am
ORD
- SFO
1 stop14h 31m
Frontier
Deal found 4/21![Frontier logo]()
$133
This Trip.com deal was found by Cheapflights users on 4/21. 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 4/296:10 am
MDW
- SFO
1 stop13h 24m
Frontier
Deal found 4/21![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Tue 5/199:37 pm
ORD
- SFO
2 stops39h 01m
Frontier
Deal found 4/22![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 5/154:48 pm
ORD
- SFO
2 stops17h 42m
Frontier
Deal found 4/22![Frontier logo]()
$136
This Southwest deal was found by Cheapflights users on 4/22. 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.
Wed 5/139:00 pm
MDW
- SFO
Nonstop4h 35m
Southwest
Deal found 4/22![Southwest logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 6/212:40 pm
ORD
- SFO
2 stops11h 15m
Frontier
Deal found 4/20![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 5/319:37 pm
ORD
- SFO
1 stop12h 24m
Frontier
Deal found 4/21![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/86:55 am
ORD
- SFO
1 stop14h 39m
Frontier
Deal found 4/23![Frontier logo]()
$139
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:22 am
MDW
- SFO
1 stop6h 53m
Delta
Deal found 4/20![Delta logo]()
$140
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 April 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $244 (Frontier) |
One-way from | $132 (Kiwi.com) |
Popular in | February |
Cheapest in | September |
Average price | $380 |
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 April 24, 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
MDW - SFO
MDWSFO
Chicago Midway
Thu 6/4
9:30 pm-12:10 am
Nonstop4h 40m
San Francisco
Tue 6/9
5:10 am-11:20 am
Nonstop4h 10m
$271
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Fri 5/29
7:40 pm-12:10 am
1 stop6h 30m
San Francisco
Tue 6/2
5:25 am-11:35 am
Nonstop4h 10m
$277
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Sat 5/23
6:15 am-11:40 am
1 stop7h 25m
San Francisco
Tue 5/26
11:25 pm-5:40 am
Nonstop4h 15m
$284
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Fri 9/4
9:30 pm-12:05 am
Nonstop4h 35m
San Francisco
Wed 9/9
6:00 am-2:45 pm
1 stop6h 45m
$293
Quickest round-trip
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Sat 5/23
10:00 am-12:35 pm
Nonstop4h 35m
San Francisco
Wed 5/27
5:25 am-11:35 am
Nonstop4h 10m
$310
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Thu 9/10
10:15 am-12:50 pm
Nonstop4h 35m
San Francisco
Sun 9/13
8:50 am-3:05 pm
Nonstop4h 15m
$333
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Fri 10/16
9:40 am-12:20 pm
Nonstop4h 40m
San Francisco
Mon 10/19
5:30 am-11:35 am
Nonstop4h 05m
$344
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Tue 7/21
6:45 am-11:35 am
1 stop6h 50m
San Francisco
Mon 7/27
11:40 pm-5:55 am
Nonstop4h 15m
$345
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Mon 6/1
5:30 am-12:35 pm
2 stops9h 05m
San Francisco
Wed 6/3
10:30 am-7:55 pm
1 stop7h 25m
$351
ChicagoSan Francisco
MDW - SFO
MDWSFO
Chicago Midway
Sat 5/30
6:10 pm-8:45 pm
Nonstop4h 35m
San Francisco
Mon 6/8
11:40 pm-5:55 am
Nonstop4h 15m
$352
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 April 24, 2026.
It’s typically best to fly out from Chicago to Fremont at noon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.
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 April 18, 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.
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 April 24, 2026.
The most flights from CHI to FR8 are scheduled on a Thursday (85 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (60 on average).
How much does it cost to fly round-trip from Chicago to Fremont?
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 April 24, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, 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
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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 Chicago
Popular flights
Alternative routes for Chicago 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 Chicago to Fremont by cabin class
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 April 24, 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 April 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from Chicago to Fremont
Discover the top 8 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 April 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$217 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$120 | Average$230 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$138 | Average$428 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$159 | Average$304 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$186 | Average$311 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$197 | Average$435 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$216 | Average$445 | FlexibilityNo cancel fee | On-time69% |