$190+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
STS — ORD
Aug 6 — Aug 131
Round-trip
1 adult, Economy
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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
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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 July 7, 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 July 7, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Sat 10/33:49 pm
ORD
- STS
1 stop8h 07m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/37:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 8/46:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 7/3. 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.
Sat 10/1711:29 am
STS
- ORD
1 stop8h 31m
Delta
Tue 10/279:59 am
ORD
- STS
2 stops8h 09m
Delta
Deal found 7/3![Delta logo]()
$384
This Expedia deal was found by Cheapflights users on 7/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:06 pm
STS
- ORD
2 stops13h 54m
Alaska Airlines
Wed 8/126:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 9/610:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Wed 9/92:22 pm
ORD
- STS
1 stop8h 37m
Alaska Airlines
Deal found 7/5![Alaska Airlines logo]()
$390
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Sat 8/296:01 am
ORD
- STS
1 stop10h 11m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/2810:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Wed 9/303:52 pm
ORD
- STS
1 stop8h 07m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Fri 7/247:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 7/287:20 am
ORD
- STS
1 stop7h 06m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 7/3. 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 10/2311:29 am
STS
- ORD
1 stop8h 31m
Delta
Tue 10/279:59 am
ORD
- STS
2 stops8h 09m
Delta
Deal found 7/3![Delta logo]()
$404
This American Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/312:58 pm
STS
- ORD
1 stop9h 30m
American Airlines
Sun 9/65:00 am
ORD
- STS
1 stop9h 28m
American Airlines
Deal found 7/4![American Airlines logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Thu 8/276:01 am
ORD
- STS
1 stop10h 11m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$409
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 July 7, 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 July 7, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/2910:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Wed 9/303:52 pm
ORD
- STS
1 stop8h 07m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/37:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 8/46:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$381
This Alaska Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 10/210:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Sat 10/33:49 pm
ORD
- STS
1 stop8h 07m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 7/227:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 7/287:20 am
ORD
- STS
1 stop7h 06m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Tue 8/47:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Thu 8/136:20 am
ORD
- STS
1 stop18h 38m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/2910:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Thu 10/13:52 pm
ORD
- STS
1 stop8h 07m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 10/283:40 pm
STS
- ORD
2 stops12h 40m
Alaska Airlines
Sat 10/316:00 am
ORD
- STS
1 stop9h 06m
Alaska Airlines
Deal found 7/4![Alaska Airlines logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/1210:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Wed 9/168:00 am
ORD
- STS
2 stops15h 31m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 9/510:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Mon 9/78:17 pm
ORD
- STS
1 stop15h 37m
Alaska Airlines
Deal found 7/5![Alaska Airlines logo]()
$462
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:58 pm
STS
- ORD
2 stops32h 01m
Alaska Airlines
Sun 10/186:00 am
ORD
- STS
1 stop9h 06m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/276:13 am
STS
- ORD
1 stop15h 46m
Alaska Airlines
Fri 10/23:52 pm
ORD
- STS
1 stop8h 07m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$476
Last-minute flights from Santa Rosa to O'Hare IntlDiscover last-minute flight deals from Santa Rosa to O'Hare Intl. Data last updated July 7, 2026 and is based on user searches.
Discover last-minute flight deals from Santa Rosa to O'Hare Intl. Data last updated July 7, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Fri 7/247:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 7/287:20 am
ORD
- STS
1 stop7h 06m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$401
This Expedia deal was found by Cheapflights users on 7/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:56 pm
STS
- ORD
1 stop17h 25m
Alaska Airlines
Wed 8/56:00 am
ORD
- STS
2 stops12h 55m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/37:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Tue 8/46:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$381
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Tue 8/47:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Thu 8/136:20 am
ORD
- STS
1 stop18h 38m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$415
This Expedia deal was found by Cheapflights users on 7/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:06 pm
STS
- ORD
2 stops13h 54m
Alaska Airlines
Wed 8/126:20 am
ORD
- STS
2 stops12h 56m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Sat 8/226:00 am
ORD
- STS
1 stop8h 56m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Sat 8/226:00 am
ORD
- STS
1 stop8h 56m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Sat 8/296:01 am
ORD
- STS
1 stop10h 11m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Thu 8/276:01 am
ORD
- STS
1 stop10h 11m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Thu 8/276:01 am
ORD
- STS
1 stop10h 11m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$409
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 July 7, 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 July 7, 2026.
This Delta deal was found by Cheapflights users on 7/2. 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.
Wed 11/1811:25 am
STS
- ORD
1 stop8h 28m
Delta
Deal found 7/2![Delta logo]()
$190
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Fri 7/247:03 pm
STS
- ORD
1 stop7h 57m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$201
This Delta deal was found by Cheapflights users on 7/3. 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.
Thu 10/1511:29 am
STS
- ORD
1 stop8h 31m
Delta
Deal found 7/3![Delta logo]()
$205
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:34 am
STS
- ORD
1 stop6h 47m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$210
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Tue 7/285:56 pm
STS
- ORD
1 stop27h 40m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$226
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 11/1911:25 am
STS
- ORD
1 stop8h 28m
Delta
Deal found 7/5![Delta logo]()
$250
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 7/231:00 pm
STS
- ORD
1 stop9h 51m
American Airlines
Deal found 7/2![American Airlines logo]()
$251
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:13 am
STS
- ORD
1 stop29h 09m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$252
This Expedia deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 8/35:56 pm
STS
- ORD
1 stop17h 25m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$255
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 7/271:00 pm
STS
- ORD
2 stops9h 50m
American Airlines
Deal found 7/2![American Airlines logo]()
$256
This Alaska Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/106:13 am
STS
- ORD
1 stop15h 46m
Alaska Airlines
Deal found 7/4![Alaska Airlines logo]()
$257
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 July 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (Alaska Airlines) |
One-way from | $190 (Delta) |
Popular in | June |
Cheapest in | September |
Average price | $432 |
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 July 7, 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
Quickest round-trip
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Tue 9/29
10:34 am-7:21 pm
1 stop6h 47m
Chicago O'Hare Intl
Wed 9/30
3:52 pm-9:59 pm
1 stop8h 07m
$379
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Mon 8/3
7:03 pm-5:00 am
1 stop7h 57m
Chicago O'Hare Intl
Tue 8/4
6:20 am-5:16 pm
2 stops12h 56m
$381
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Fri 10/2
10:34 am-7:21 pm
1 stop6h 47m
Chicago O'Hare Intl
Sat 10/3
3:49 pm-9:56 pm
1 stop8h 07m
$399
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Wed 7/22
7:03 pm-5:00 am
1 stop7h 57m
Chicago O'Hare Intl
Tue 7/28
7:20 am-12:26 pm
1 stop7h 06m
$401
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Tue 8/4
7:03 pm-5:00 am
1 stop7h 57m
Chicago O'Hare Intl
Thu 8/13
6:20 am-10:58 pm
1 stop18h 38m
$415
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Tue 9/29
10:34 am-7:21 pm
1 stop6h 47m
Chicago O'Hare Intl
Thu 10/1
3:52 pm-9:59 pm
1 stop8h 07m
$429
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Wed 10/28
3:40 pm-6:20 am
2 stops12h 40m
Chicago O'Hare Intl
Sat 10/31
6:00 am-1:06 pm
1 stop9h 06m
$443
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Sat 9/12
10:34 am-7:21 pm
1 stop6h 47m
Chicago O'Hare Intl
Wed 9/16
8:00 am-9:31 pm
2 stops15h 31m
$455
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Sat 9/5
10:34 am-7:21 pm
1 stop6h 47m
Chicago O'Hare Intl
Mon 9/7
8:17 pm-9:54 am
1 stop15h 37m
$462
Santa RosaChicago
STS - ORD
STSORD
Santa Rosa Sonoma County
Thu 10/15
1:58 pm-11:59 pm
2 stops32h 01m
Chicago O'Hare Intl
Sun 10/18
6:00 am-1:06 pm
1 stop9h 06m
$466
Showing 1-10 of 20 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 July 7, 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.
Food
7.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.0
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
7.9
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 locationsBenton Harbor
Rosemont
Schaumburg
Naperville
Lake Geneva
Oak Brook
Gurnee
Delavan
Oakbrook Terrace
Downers Grove
Des Plaines
South Holland
Libertyville
Hoffman Estates
Warrenville
Rockford
Racine
Great Lakes
Northbrook
Waukegan
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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 July 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$276 | Average$350 | FlexibilityNo cancel fee | On-time75% |