$81+ Cheap flights from Illinois to San Jose, CA (SJC)
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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SJC
Mar 5 — Mar 121
1 adult, Economy
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Cheapest flights from Illinois to San JoseExplore the most affordable flight options available from Illinois to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from Illinois to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:15 am
ORD
- SJC
2 stops38h 29m
Multiple Airlines
Mon 3/98:20 pm
SJC
- ORD
1 stop7h 48m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Wed 3/411:51 am
ORD
- SJC
2 stops31h 53m
Frontier
Mon 3/98:20 pm
SJC
- ORD
1 stop7h 48m
Frontier
Deal found 1/31![Frontier logo]()
$192
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:52 pm
ORD
- SJC
1 stop9h 03m
Multiple Airlines
Mon 4/278:20 pm
SJC
- ORD
1 stop8h 27m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$207
This CheapOair deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:20 am
ORD
- SJC
1 stop11h 13m
Alaska Airlines
Thu 3/57:00 am
SJC
- ORD
1 stop14h 59m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:02 pm
ORD
- SJC
2 stops41h 37m
Frontier
Mon 3/98:20 pm
SJC
- ORD
1 stop7h 48m
Frontier
Deal found 2/1![Frontier logo]()
$217
This Trip.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/23:54 pm
ORD
- SJC
1 stop9h 05m
Multiple Airlines
Mon 3/98:20 pm
SJC
- ORD
1 stop7h 48m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$219
This CheapOair deal was found by Cheapflights users on 1/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:21 pm
ORD
- SJC
1 stop26h 04m
Frontier
Thu 4/236:57 pm
SJC
- ORD
1 stop9h 50m
Frontier
Deal found 1/31![Frontier logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 4/303:52 pm
ORD
- SJC
1 stop9h 03m
Alaska Airlines
Wed 5/610:21 am
SJC
- ORD
1 stop6h 42m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 4/83:29 pm
ORD
- SJC
2 stops29h 33m
Frontier
Mon 4/1310:29 am
SJC
- ORD
1 stop18h 18m
Frontier
Deal found 2/2![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 4/159:18 pm
ORD
- SJC
1 stop22h 44m
Frontier
Sun 4/198:20 pm
SJC
- ORD
1 stop8h 27m
Frontier
Deal found 2/2![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/38:20 am
ORD
- SJC
1 stop7h 53m
Hawaiian Airlines
Tue 3/38:05 pm
SJC
- ORD
1 stop16h 53m
Hawaiian Airlines
Deal found 2/2![Hawaiian Airlines logo]()
$234
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/198:06 pm
STL
- SJC
1 stop15h 19m
Multiple Airlines
Tue 3/242:29 pm
SJC
- STL
1 stop7h 30m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$253
Best flights from Illinois to San JoseDiscover carefully curated flight deals from Illinois to San Jose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from Illinois to San Jose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:20 am
ORD
- SJC
1 stop7h 53m
Alaska Airlines
Tue 3/1010:24 am
SJC
- ORD
1 stop26h 34m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:00 pm
STL
- SJC
1 stop6h 21m
Delta
Sat 4/257:20 am
SJC
- STL
2 stops12h 11m
Delta
Deal found 2/1![Delta logo]()
$285
This Southwest deal was found by Cheapflights users on 2/3. 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 4/15:45 am
MDW
- SJC
1 stop7h 50m
Southwest
Tue 4/79:10 pm
SJC
- MDW
1 stop5h 50m
Southwest
Deal found 2/3![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 2/3. 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 4/17:41 pm
ORD
- SJC
Nonstop4h 55m
United Airlines
Tue 4/76:30 am
SJC
- ORD
Nonstop4h 26m
United Airlines
Deal found 2/3![United Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/113:58 pm
MLI
- SJC
1 stop7h 31m
American Airlines
Wed 2/182:07 pm
SJC
- MLI
1 stop7h 21m
American Airlines
Deal found 2/2![American Airlines logo]()
$463
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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.
Mon 3/23:54 pm
ORD
- SJC
1 stop9h 05m
Alaska Airlines
Tue 3/1012:45 pm
SJC
- ORD
1 stop9h 14m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/18:20 am
ORD
- SJC
1 stop7h 38m
Alaska Airlines
Mon 4/67:05 pm
SJC
- ORD
1 stop9h 34m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 1/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/23:36 pm
BMI
- SJC
1 stop7h 42m
Delta
Mon 3/98:35 pm
SJC
- BMI
2 stops12h 44m
Delta
Deal found 1/31![Delta logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:59 pm
ORD
- SJC
1 stop17h 47m
Alaska Airlines
Wed 3/2510:22 am
SJC
- ORD
1 stop11h 37m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 2/3. 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 4/13:45 pm
ORD
- SJC
2 stops9h 25m
Southwest
Tue 4/72:20 pm
SJC
- ORD
2 stops7h 35m
Southwest
Deal found 2/3![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:00 pm
STL
- SJC
1 stop6h 36m
Delta
Sun 4/54:50 pm
SJC
- STL
1 stop5h 31m
Delta
Deal found 2/1![Delta logo]()
$316
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Sat 4/187:00 am
ORD
- SJC
1 stop8h 35m
United Airlines
Thu 4/236:30 am
SJC
- ORD
Nonstop4h 26m
United Airlines
Deal found 1/31![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:00 am
ORD
- SJC
1 stop9h 35m
Alaska Airlines
Wed 3/2510:22 am
SJC
- ORD
1 stop11h 37m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$283
This Southwest deal was found by Cheapflights users on 2/3. 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 4/175:15 pm
STL
- SJC
1 stop7h 10m
Southwest
Mon 4/202:45 pm
SJC
- STL
1 stop5h 20m
Southwest
Deal found 2/3![Southwest logo]()
$343
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:00 pm
STL
- SJC
1 stop6h 36m
Delta
Mon 4/64:50 pm
SJC
- STL
1 stop5h 31m
Delta
Deal found 2/1![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 2/2. 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 5/1610:10 am
MDW
- SJC
2 stops7h 35m
Southwest
Wed 5/209:10 pm
SJC
- MDW
1 stop5h 50m
Southwest
Deal found 2/2![Southwest logo]()
$344
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:59 pm
STL
- SJC
1 stop5h 43m
Delta
Wed 5/277:36 am
SJC
- STL
2 stops14h 54m
Delta
Deal found 2/1![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:25 pm
MDW
- SJC
Nonstop4h 35m
Southwest
Mon 5/1810:55 pm
SJC
- MDW
Nonstop4h 05m
Southwest
Deal found 2/1![Southwest logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/173:07 pm
ORD
- SJC
1 stop9h 49m
Alaska Airlines
Thu 3/197:00 am
SJC
- ORD
1 stop10h 02m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$318
This American Airlines deal was found by Cheapflights users on 2/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/173:45 pm
BMI
- SJC
1 stop7h 45m
American Airlines
Sat 2/216:00 am
SJC
- BMI
1 stop7h 15m
American Airlines
Deal found 2/1![American Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/192:22 pm
STL
- SJC
2 stops9h 56m
Delta
Tue 3/2411:40 am
SJC
- STL
2 stops10h 41m
Delta
Deal found 2/1![Delta logo]()
$323
This Southwest deal was found by Cheapflights users on 2/2. 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 3/306:25 pm
MDW
- SJC
1 stop7h 20m
Southwest
Tue 4/710:55 pm
SJC
- MDW
Nonstop4h 05m
Southwest
Deal found 2/2![Southwest logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:59 pm
ORD
- SJC
1 stop15h 59m
Alaska Airlines
Mon 4/138:39 pm
SJC
- ORD
1 stop15h 42m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 2/3. 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 4/246:45 pm
STL
- SJC
1 stop6h 56m
Delta
Mon 4/2710:55 pm
SJC
- STL
1 stop7h 35m
Delta
Deal found 2/3![Delta logo]()
$343
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/173:33 pm
MLI
- SJC
1 stop7h 57m
American Airlines
Sat 2/216:00 am
SJC
- MLI
1 stop7h 03m
American Airlines
Deal found 2/2![American Airlines logo]()
$505
This Southwest deal was found by Cheapflights users on 2/2. 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 4/153:00 pm
MDW
- SJC
1 stop8h 05m
Southwest
Sun 4/1910:55 pm
SJC
- MDW
Nonstop4h 05m
Southwest
Deal found 2/2![Southwest logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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.
Sun 3/18:20 am
ORD
- SJC
1 stop29h 48m
Alaska Airlines
Tue 3/1011:58 am
SJC
- ORD
2 stops9h 58m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 2/2. 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.
Mon 3/307:25 am
ORD
- SJC
1 stop9h 32m
Delta
Tue 4/78:35 pm
SJC
- ORD
2 stops10h 05m
Delta
Deal found 2/2![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 2/2. 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 4/295:25 pm
PIA
- SJC
1 stop7h 11m
United Airlines
Sun 5/36:30 am
SJC
- PIA
1 stop8h 20m
United Airlines
Deal found 2/2![United Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:44 am
PIA
- SJC
1 stop9h 02m
American Airlines
Sat 8/86:00 am
SJC
- PIA
2 stops9h 49m
American Airlines
Deal found 2/2![American Airlines logo]()
$526
Last-minute flights from Illinois to San JoseDiscover last-minute flight deals from Illinois to San Jose. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to San Jose. Data last updated February 3, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/287:00 am
ORD
- SJC
1 stop8h 42m
Alaska Airlines
Mon 3/92:53 pm
SJC
- ORD
1 stop7h 06m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$240
This Trip.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/23:54 pm
ORD
- SJC
1 stop9h 05m
Multiple Airlines
Mon 3/98:20 pm
SJC
- ORD
1 stop7h 48m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/23:54 pm
ORD
- SJC
1 stop9h 05m
Hawaiian Airlines
Tue 3/312:45 pm
SJC
- ORD
1 stop9h 14m
Hawaiian Airlines
Deal found 2/2![Hawaiian Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:02 pm
ORD
- SJC
2 stops41h 37m
Frontier
Mon 3/98:20 pm
SJC
- ORD
1 stop7h 48m
Frontier
Deal found 2/1![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/38:20 am
ORD
- SJC
1 stop7h 53m
Hawaiian Airlines
Tue 3/38:05 pm
SJC
- ORD
1 stop16h 53m
Hawaiian Airlines
Deal found 2/2![Hawaiian Airlines logo]()
$234
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:20 am
ORD
- SJC
1 stop7h 53m
Alaska Airlines
Tue 3/1010:24 am
SJC
- ORD
1 stop26h 34m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:15 am
ORD
- SJC
2 stops38h 29m
Multiple Airlines
Mon 3/98:20 pm
SJC
- ORD
1 stop7h 48m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Wed 3/411:51 am
ORD
- SJC
2 stops31h 53m
Frontier
Mon 3/98:20 pm
SJC
- ORD
1 stop7h 48m
Frontier
Deal found 1/31![Frontier logo]()
$192
This CheapOair deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:20 am
ORD
- SJC
1 stop11h 13m
Alaska Airlines
Thu 3/57:00 am
SJC
- ORD
1 stop14h 59m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$210
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/53:07 pm
ORD
- SJC
1 stop9h 49m
Alaska Airlines
Mon 3/912:45 pm
SJC
- ORD
1 stop9h 14m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$223
This CheapOair deal was found by Cheapflights users on 1/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:40 am
ORD
- SJC
1 stop17h 16m
Alaska Airlines
Tue 3/178:05 pm
SJC
- ORD
1 stop16h 16m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$250
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/198:06 pm
STL
- SJC
1 stop15h 19m
Multiple Airlines
Tue 3/242:29 pm
SJC
- STL
1 stop7h 30m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$253
One-way flights from Illinois to San JoseSearch for one-way flight options from Illinois to San Jose. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from Illinois to San Jose. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 4/298:53 pm
ORD
- SJC
1 stop23h 09m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/1111:25 am
MDW
- SJC
2 stops32h 42m
Frontier
Deal found 2/3![Frontier logo]()
$99
This CheapOair deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/113:07 pm
ORD
- SJC
1 stop9h 49m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/1111:25 am
MDW
- SJC
2 stops32h 42m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$101
This Mytrip deal was found by Cheapflights users on 2/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:55 pm
ORD
- SJC
1 stop23h 12m
Frontier
Deal found 2/1![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 5/116:15 am
MDW
- SJC
2 stops13h 47m
Frontier
Deal found 2/2![Frontier logo]()
$102
This CheapOair deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:20 am
ORD
- SJC
1 stop11h 13m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Wed 3/2512:35 pm
ORD
- SJC
1 stop31h 32m
Frontier
Deal found 1/31![Frontier logo]()
$107
This Trip.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:50 pm
ORD
- SJC
1 stop8h 47m
Frontier
Deal found 2/2![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/411:51 am
ORD
- SJC
3 stops31h 53m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$111
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/58:20 am
ORD
- SJC
1 stop7h 56m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$112
This CheapOair deal was found by Cheapflights users on 2/2. 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.
Thu 3/510:11 pm
STL
- SJC
1 stop21h 56m
Frontier
Deal found 2/2![Frontier logo]()
$115
Find flight deals from Illinois to San Jose
Keep the following information in mind while searching for Illinois to San Jose flight deals. Data was last updated February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $190 (Kiwi.com) |
One-way from | $81 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $433 |
Good round-trip deal | $380 or less |
Good one-way deal | $193 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to San Jose 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 February 3, 2026.
Use the filters below to find and compare flights from Illinois to San Jose that are best for you.
Fly from
Illinois
Fly to
San Jose
Route
Depart
Return
Price
ChicagoSan Jose
ORD - SJC
ORDSJC
Chicago O'Hare Intl
Tue 3/3
8:20 am-2:13 pm
1 stop7h 53m
San Jose
Tue 3/10
10:24 am-2:58 pm
1 stop26h 34m
$253
ChicagoSan Jose
ORD - SJC
ORDSJC
Chicago O'Hare Intl
Mon 3/2
3:54 pm-10:59 pm
1 stop9h 05m
San Jose
Tue 3/10
12:45 pm-11:59 pm
1 stop9h 14m
$263
ChicagoSan Jose
ORD - SJC
ORDSJC
Chicago O'Hare Intl
Wed 4/1
8:20 am-1:58 pm
1 stop7h 38m
San Jose
Mon 4/6
7:05 pm-6:39 am
1 stop9h 34m
$263
ChicagoSan Jose
ORD - SJC
ORDSJC
Chicago O'Hare Intl
Mon 3/23
7:59 pm-11:46 am
1 stop17h 47m
San Jose
Wed 3/25
10:22 am-11:59 pm
1 stop11h 37m
$270
ChicagoSan Jose
ORD - SJC
ORDSJC
Chicago O'Hare Intl
Wed 3/18
6:00 am-1:35 pm
1 stop9h 35m
San Jose
Wed 3/25
10:22 am-11:59 pm
1 stop11h 37m
$283
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Sat 4/18
5:00 pm-9:21 pm
1 stop6h 21m
San Jose
Sat 4/25
7:20 am-9:31 pm
2 stops12h 11m
$285
BloomingtonSan Jose
BMI - SJC
BMISJC
Bloomington-Normal
Mon 3/2
3:36 pm-9:18 pm
1 stop7h 42m
San Jose
Mon 3/9
8:35 pm-11:19 am
2 stops12h 44m
$314
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Sat 4/4
5:00 pm-9:36 pm
1 stop6h 36m
San Jose
Sun 4/5
4:50 pm-12:21 am
1 stop5h 31m
$316
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Sat 4/4
5:00 pm-9:36 pm
1 stop6h 36m
San Jose
Mon 4/6
4:50 pm-12:21 am
1 stop5h 31m
$316
ChicagoSan Jose
MDW - SJC
MDWSJC
Chicago Midway
Wed 4/1
5:45 am-11:35 am
1 stop7h 50m
San Jose
Tue 4/7
9:10 pm-5:00 am
1 stop5h 50m
$317
Showing 1-10 of 60 results
Best time to book a flight from Illinois to San Jose
Have a flexible travel schedule? Discover the best time to fly to San Jose from Illinois with our price prediction graph.
ORD-SJC
STL-SJC
MDW-SJC
MLI-SJC
BMI-SJC
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 Illinois to San Jose
USIL-SJC
ORD-SJC
STL-SJC
MDW-SJC
MLI-SJC
What is the cheapest month to book a flight from Illinois to San Jose, California?
Currently, October is the cheapest month in which you can book a flight from Illinois to San Jose, California (average of $80). Flying from Illinois to San Jose, California in November is currently the most expensive (average of $207). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to SJC?
Find hourly flight availability from Illinois to San Jose. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 37% on flights from Illinois to San Jose, California by exploring options for tickets at noon.
Related info for your journey
Find useful and relevant information for your journey from Illinois to San Jose. 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.
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Complete your trip
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Popular flights
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Top destinations
Alternative routes for Illinois to San Jose
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Jose by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to San Jose by cabin class
Find flights from Illinois to San Jose, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and San Jose flights
Browse other Illinois and San Jose flight options. Last updated on February 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Jose
Explore flights to San Jose departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 3, 2026.
Illinois to San Jose flights
Consider these flights traveling from Illinois to San Jose.
Top 7 airlines flying from Illinois to San Jose
Discover the top 7 airlines that operate flights from Illinois to San Jose. 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 February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$193 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$133 | Average$201 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$189 | Average$363 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$262 | Average$366 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$288 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$594 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$333 | Average$475 | FlexibilityNo cancel fee | On-time63% |