$162+ Cheap flights from Santa Rosa (STS) to O'Hare Intl (ORD)
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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
STS — ORD
Jun 22 — Jun 291
Round-trip
1 adult, Economy
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Cheapest flights from Santa Rosa to O'Hare IntlExplore the most affordable flight options available from Santa Rosa to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 23, 2026.
Explore the most affordable flight options available from Santa Rosa to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:03 am
STS
- ORD
1 stop8h 58m
Alaska Airlines
Wed 9/307:20 am
ORD
- STS
1 stop8h 52m
Alaska Airlines
Deal found 5/20![Alaska Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/141:18 pm
STS
- ORD
1 stop9h 10m
American Airlines
Mon 11/165:00 am
ORD
- STS
1 stop9h 48m
American Airlines
Deal found 5/22![American Airlines logo]()
$358
This Alaska Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:03 am
STS
- ORD
1 stop8h 58m
Alaska Airlines
Sat 10/36:00 am
ORD
- STS
1 stop9h 06m
Alaska Airlines
Deal found 5/20![Alaska Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 5/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:12 pm
STS
- ORD
1 stop6h 39m
American Airlines
Wed 7/225:00 am
ORD
- STS
1 stop9h 30m
American Airlines
Deal found 5/21![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 7/112:45 pm
STS
- ORD
1 stop9h 54m
American Airlines
Wed 7/157:00 am
ORD
- STS
1 stop7h 03m
American Airlines
Deal found 5/18![American Airlines logo]()
$380
This Orbitz deal was found by Cheapflights users on 5/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:13 am
STS
- ORD
1 stop10h 50m
Alaska Airlines
Mon 9/143:52 pm
ORD
- STS
1 stop8h 04m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 8/46:00 am
ORD
- STS
1 stop7h 58m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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 11/142:13 pm
STS
- ORD
1 stop7h 36m
Alaska Airlines
Mon 11/169:31 am
ORD
- STS
2 stops28h 09m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$392
Best flights from Santa Rosa to O'Hare IntlDiscover carefully curated flight deals from Santa Rosa to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 23, 2026.
Discover carefully curated flight deals from Santa Rosa to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Tue 6/306:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:56 pm
STS
- ORD
1 stop17h 25m
Alaska Airlines
Tue 7/77:59 pm
ORD
- STS
1 stop16h 25m
Alaska Airlines
Deal found 5/20![Alaska Airlines logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Thu 7/26:00 am
ORD
- STS
1 stop7h 58m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$421
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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.
Tue 9/16:13 am
STS
- ORD
1 stop10h 50m
Alaska Airlines
Wed 9/22:22 pm
ORD
- STS
1 stop9h 23m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$432
This Alaska Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/307:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 7/146:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/47:40 pm
STS
- ORD
1 stop15h 34m
Alaska Airlines
Tue 6/167:59 pm
ORD
- STS
1 stop16h 25m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$458
This Alaska Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:03 am
STS
- ORD
1 stop8h 58m
Alaska Airlines
Fri 10/23:52 pm
ORD
- STS
1 stop8h 04m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$481
This Alaska Airlines deal was found by Cheapflights users on 5/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:03 am
STS
- ORD
1 stop8h 58m
Alaska Airlines
Sun 9/276:00 am
ORD
- STS
1 stop8h 46m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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.
Sun 9/277:03 am
STS
- ORD
1 stop8h 58m
Alaska Airlines
Sat 10/36:00 am
ORD
- STS
2 stops15h 19m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:26 am
STS
- ORD
1 stop10h 31m
Alaska Airlines
Wed 7/222:20 pm
ORD
- STS
1 stop10h 38m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Mon 7/277:59 pm
ORD
- STS
1 stop24h 24m
Alaska Airlines
Deal found 5/20![Alaska Airlines logo]()
$500
Last-minute flights from Santa Rosa to O'Hare IntlDiscover last-minute flight deals from Santa Rosa to O'Hare Intl. Data last updated May 23, 2026 and is based on user searches.
Discover last-minute flight deals from Santa Rosa to O'Hare Intl. Data last updated May 23, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/47:40 pm
STS
- ORD
1 stop15h 34m
Alaska Airlines
Tue 6/167:59 pm
ORD
- STS
1 stop16h 25m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$458
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Tue 6/306:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Sat 7/45:59 pm
ORD
- STS
1 stop6h 59m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Wed 7/16:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Fri 7/36:00 am
ORD
- STS
1 stop7h 58m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$421
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Mon 7/66:20 am
ORD
- STS
1 stop18h 38m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Thu 6/113:43 pm
ORD
- STS
1 stop9h 08m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$438
This Alaska Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Thu 7/26:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 5/20![Alaska Airlines logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/297:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Wed 7/157:20 am
ORD
- STS
1 stop7h 06m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$471
This American Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/301:09 pm
STS
- ORD
1 stop9h 19m
American Airlines
Wed 7/155:00 am
ORD
- STS
1 stop9h 03m
American Airlines
Deal found 5/18![American Airlines logo]()
$423
This Alaska Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/307:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 7/146:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/307:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Sat 7/185:59 pm
ORD
- STS
1 stop6h 59m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$456
One-way flights from Santa Rosa to O'Hare IntlSearch for one-way flight options from Santa Rosa to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated May 23, 2026.
Search for one-way flight options from Santa Rosa to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated May 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:59 pm
STS
- ORD
1 stop8h 01m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$162
This Alaska Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:03 am
STS
- ORD
1 stop8h 58m
Alaska Airlines
Deal found 5/20![Alaska Airlines logo]()
$180
This American Airlines deal was found by Cheapflights users on 5/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:58 pm
STS
- ORD
1 stop7h 02m
American Airlines
Deal found 5/20![American Airlines logo]()
$182
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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.
Tue 9/297:03 am
STS
- ORD
1 stop8h 58m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$199
This American Airlines deal was found by Cheapflights users on 5/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/241:09 pm
STS
- ORD
1 stop9h 19m
American Airlines
Deal found 5/21![American Airlines logo]()
$212
This American Airlines deal was found by Cheapflights users on 5/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:09 pm
STS
- ORD
2 stops9h 30m
American Airlines
Deal found 5/21![American Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:44 pm
STS
- ORD
1 stop7h 34m
American Airlines
Deal found 5/22![American Airlines logo]()
$222
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:21 pm
STS
- ORD
1 stop6h 04m
American Airlines
Deal found 5/22![American Airlines logo]()
$229
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:21 pm
STS
- ORD
1 stop6h 04m
American Airlines
Deal found 5/22![American Airlines logo]()
$230
This Alaska Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:40 pm
STS
- ORD
2 stops32h 19m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$239
This Expedia deal was found by Cheapflights users on 5/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:26 am
STS
- ORD
1 stop10h 31m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$250
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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.
Thu 9/247:03 am
STS
- ORD
1 stop8h 58m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$256
Find flight deals from Santa Rosa to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $323 (American Airlines) |
One-way from | $162 (American Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $453 |
Cheapflights Fare Finder
Customize your flight search to find flights from Santa Rosa to O'Hare Intl 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 May 23, 2026.
Use the filters below to find and compare flights from Santa Rosa to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Tue 6/9
6:59 pm-5:00 am
1 stop8h 01m
Chicago O'Hare Intl
Tue 6/30
6:20 am-5:16 pm
2 stops12h 56m
$384
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Thu 7/2
5:56 pm-1:21 pm
1 stop17h 25m
Chicago O'Hare Intl
Tue 7/7
7:59 pm-10:24 am
1 stop16h 25m
$406
Quickest round-trip
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Tue 6/9
6:59 pm-5:00 am
1 stop8h 01m
Chicago O'Hare Intl
Thu 7/2
6:00 am-11:58 am
1 stop7h 58m
$421
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Tue 9/1
6:13 am-7:03 pm
1 stop10h 50m
Chicago O'Hare Intl
Wed 9/2
2:22 pm-9:45 pm
1 stop9h 23m
$432
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Tue 6/30
7:03 pm-5:00 am
1 stop7h 57m
Chicago O'Hare Intl
Tue 7/14
6:20 am-5:16 pm
2 stops12h 56m
$454
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Thu 6/4
7:40 pm-1:14 pm
1 stop15h 34m
Chicago O'Hare Intl
Tue 6/16
7:59 pm-10:24 am
1 stop16h 25m
$458
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Wed 9/30
7:03 am-6:01 pm
1 stop8h 58m
Chicago O'Hare Intl
Fri 10/2
3:52 pm-9:56 pm
1 stop8h 04m
$481
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Sat 9/26
7:03 am-6:01 pm
1 stop8h 58m
Chicago O'Hare Intl
Sun 9/27
6:00 am-12:46 pm
1 stop8h 46m
$489
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Sun 9/27
7:03 am-6:01 pm
1 stop8h 58m
Chicago O'Hare Intl
Sat 10/3
6:00 am-7:19 pm
2 stops15h 19m
$489
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Wed 7/8
6:26 am-6:57 pm
1 stop10h 31m
Chicago O'Hare Intl
Wed 7/22
2:20 pm-10:58 pm
1 stop10h 38m
$489
Showing 1-10 of 22 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Santa Rosa-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Santa Rosa-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Santa Rosa-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Santa Rosa-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Santa Rosa-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Santa Rosa to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Santa Rosa with our price prediction graph.
STS-ORD
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.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated May 23, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines from Santa Rosa to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from Santa Rosa to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsRosemont
Schaumburg
Benton Harbor
Naperville
Delavan
Oakbrook Terrace
Lake Geneva
Gurnee
Downers Grove
Des Plaines
Hoffman Estates
Oak Brook
South Holland
Libertyville
Warrenville
Great Lakes
Arlington Heights
Northbrook
Waukegan
Rockford
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Top airline flying from Santa Rosa to O'Hare Intl
Discover the top airline that operate flights from Santa Rosa to O'Hare Intl. 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 May 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$276 | Average$350 | FlexibilityNo cancel fee | On-time75% |