$139+ Cheap flights from O'Hare Intl (ORD) to San Francisco (SFO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SFO
Sep 14 — Sep 211
Round-trip
1 adult, Economy
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Find cheap flights from O'Hare Intl to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Francisco are usually found in September or October, booked 72 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap flight deals from O'Hare Intl to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from O'Hare Intl to San FranciscoExplore the most affordable flight options available from O'Hare Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.
Explore the most affordable flight options available from O'Hare Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.
This Frontier deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:05 am -
1 stop13h 58m
Wed 9/1610:05 pm -
1 stop9h 15m
Deal found 8/14![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:50 pm -
2 stops20h 57m
Sat 9/127:11 pm -
1 stop8h 27m
Deal found 8/14![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:20 pm -
1 stop25h 26m
Wed 9/911:58 pm -
2 stops22h 25m
Deal found 8/13![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:20 pm -
1 stop25h 26m
Tue 9/88:23 pm -
1 stop7h 54m
Deal found 8/13![Frontier logo]()
$256
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 9/51:50 pm -
1 stop10h 10m
Sat 9/126:00 am -
1 stop8h 37m
Deal found 8/14![Delta logo]()
$257
This Cheapflightsfares deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:20 am -
1 stop11h 00m
Mon 10/126:00 am -
1 stop26h 01m
Deal found 8/11![Frontier logo]()
$258
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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.
Fri 9/43:35 pm -
Nonstop4h 49m
Sun 9/66:38 pm -
Nonstop4h 21m
Deal found 8/12![United Airlines logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:20 pm -
1 stop25h 26m
Wed 9/97:11 pm -
1 stop8h 27m
Deal found 8/12![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:55 pm -
1 stop13h 19m
Tue 9/297:11 pm -
1 stop8h 27m
Deal found 8/10![Frontier logo]()
$261
This Frontier deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:05 am -
1 stop13h 58m
Wed 9/167:11 pm -
1 stop8h 27m
Deal found 8/12![Frontier logo]()
$262
This Frontier deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:20 am -
1 stop11h 00m
Sun 10/187:17 pm -
1 stop12h 44m
Deal found 8/11![Frontier logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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.
Thu 9/108:55 pm -
1 stop16h 00m
Fri 9/2510:05 pm -
1 stop11h 46m
Deal found 8/10![Frontier logo]()
$264
Best flights from O'Hare Intl to San FranciscoDiscover carefully curated flight deals from O'Hare Intl to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
Discover carefully curated flight deals from O'Hare Intl to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/32:36 pm -
1 stop6h 54m
Tue 9/82:30 pm -
1 stop7h 01m
Deal found 8/13![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:44 am -
Nonstop4h 49m
Tue 10/136:38 pm -
Nonstop4h 17m
Deal found 8/13![United Airlines logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/87:20 am -
1 stop9h 25m
Tue 9/157:08 am -
1 stop10h 13m
Deal found 8/12![Alaska Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:40 am -
Nonstop4h 46m
Wed 9/236:00 am -
Nonstop4h 29m
Deal found 8/11![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 11/27:00 am -
1 stop8h 08m
Mon 11/910:38 am -
2 stops9h 09m
Deal found 8/14![Delta logo]()
$445
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am -
Nonstop4h 38m
Wed 9/1610:35 pm -
Nonstop4h 26m
Deal found 8/14![United Airlines logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 8/306:05 am -
1 stop6h 48m
Thu 9/33:25 pm -
1 stop6h 34m
Deal found 8/14![Alaska Airlines logo]()
$481
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/256:59 pm -
1 stop6h 41m
Mon 9/288:59 pm -
2 stops9h 31m
Deal found 8/12![Delta logo]()
$446
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 8/198:09 pm -
Nonstop4h 46m
Sat 8/226:38 pm -
Nonstop4h 21m
Deal found 8/13![United Airlines logo]()
$473
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 10/85:48 pm -
1 stop8h 08m
Sun 10/118:59 pm -
2 stops9h 54m
Deal found 8/14![Delta logo]()
$497
This KAYAK deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:00 am -
2 stops13h 22m
Sun 9/205:37 pm -
2 stops10h 43m
Deal found 8/12![Alaska Airlines logo]()
$586
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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.
Sun 11/17:35 am -
1 stop6h 49m
Fri 11/1310:38 am -
2 stops9h 09m
Deal found 8/11![Delta logo]()
$585
Last-minute flights from O'Hare Intl to San FranciscoDiscover last-minute flight deals from O'Hare Intl to San Francisco. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to San Francisco. Data last updated August 15, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:05 am -
1 stop13h 58m
Wed 9/1610:05 pm -
1 stop9h 15m
Deal found 8/14![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:20 pm -
1 stop25h 26m
Tue 9/88:23 pm -
1 stop7h 54m
Deal found 8/13![Frontier logo]()
$256
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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.
Fri 9/43:35 pm -
Nonstop4h 49m
Sun 9/66:38 pm -
Nonstop4h 21m
Deal found 8/12![United Airlines logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:20 pm -
1 stop25h 26m
Wed 9/97:11 pm -
1 stop8h 27m
Deal found 8/12![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:05 am -
1 stop6h 48m
Tue 9/88:23 pm -
1 stop7h 54m
Deal found 8/14![Multiple Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:20 pm -
1 stop25h 26m
Wed 9/911:58 pm -
2 stops22h 25m
Deal found 8/13![Frontier logo]()
$255
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 9/51:50 pm -
1 stop10h 10m
Sat 9/126:00 am -
1 stop8h 37m
Deal found 8/14![Delta logo]()
$257
This Cheapflightsfares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:05 am -
1 stop13h 58m
Tue 9/227:11 pm -
1 stop8h 27m
Deal found 8/12![Frontier logo]()
$258
This Frontier deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:05 am -
1 stop13h 58m
Wed 9/167:11 pm -
1 stop8h 27m
Deal found 8/12![Frontier logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:50 pm -
2 stops20h 57m
Sat 9/127:11 pm -
1 stop8h 27m
Deal found 8/14![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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.
Thu 9/108:55 pm -
1 stop16h 00m
Fri 9/2510:05 pm -
1 stop11h 46m
Deal found 8/10![Frontier logo]()
$264
This Frontier deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:26 am -
1 stop11h 22m
Fri 9/2510:05 pm -
1 stop11h 46m
Deal found 8/10![Frontier logo]()
$261
One-way flights from O'Hare Intl to San FranciscoSearch for one-way flight options from O'Hare Intl to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
Search for one-way flight options from O'Hare Intl to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 9/46:59 am -
1 stop9h 28m
Deal found 8/14![Delta logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:10 pm -
2 stops29h 08m
Deal found 8/12![Frontier logo]()
$140
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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.
Fri 9/48:09 pm -
Nonstop4h 46m
Deal found 8/12![United Airlines logo]()
$141
This Super.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/41:01 pm -
1 stop11h 27m
Deal found 8/13![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/19:20 am -
2 stops13h 26m
Deal found 8/11![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 8/319:20 pm -
1 stop25h 26m
Deal found 8/12![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:01 pm -
2 stops23h 21m
Deal found 8/14![Frontier logo]()
$149
This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/16:05 am -
1 stop6h 48m
Deal found 8/11![Alaska Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:20 am -
2 stops18h 08m
Deal found 8/10![Frontier logo]()
$152
Find flight deals from O'Hare Intl to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to San Francisco (SFO). 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 August 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $253 (Frontier) |
One-way from | $139 (Delta) |
Popular in | June |
Cheapest in | September |
Average price | $403 |
Good round-trip deal | $350 or less |
Good one-way deal | $236 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to San Francisco 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 August 15, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Thu 9/3
2:36 pm-7:30 pm
1 stop6h 54m
San Francisco
Tue 9/8
2:30 pm-11:31 pm
1 stop7h 01m
$302
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Sun 9/27
7:44 am-10:33 am
Nonstop4h 49m
San Francisco
Tue 10/13
6:38 pm-12:55 am
Nonstop4h 17m
$318
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Tue 9/8
7:20 am-2:45 pm
1 stop9h 25m
San Francisco
Tue 9/15
7:08 am-7:21 pm
1 stop10h 13m
$319
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Thu 9/17
7:40 am-10:26 am
Nonstop4h 46m
San Francisco
Wed 9/23
6:00 am-12:29 pm
Nonstop4h 29m
$319
Quickest round-trip
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Sun 9/13
6:00 am-8:38 am
Nonstop4h 38m
San Francisco
Wed 9/16
10:35 pm-5:01 am
Nonstop4h 26m
$427
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Mon 11/2
7:00 am-1:08 pm
1 stop8h 08m
San Francisco
Mon 11/9
10:38 am-9:47 pm
2 stops9h 09m
$445
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Fri 9/25
6:59 pm-11:40 pm
1 stop6h 41m
San Francisco
Mon 9/28
8:59 pm-8:30 am
2 stops9h 31m
$446
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Wed 8/19
8:09 pm-10:55 pm
Nonstop4h 46m
San Francisco
Sat 8/22
6:38 pm-12:59 am
Nonstop4h 21m
$473
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Sun 8/30
6:05 am-10:53 am
1 stop6h 48m
San Francisco
Thu 9/3
3:25 pm-11:59 pm
1 stop6h 34m
$481
ChicagoSan Francisco
ORD Chicago O'Hare Intl - SFO San Francisco
ORDSFO
Chicago O'Hare Intl
Thu 10/8
5:48 pm-11:56 pm
1 stop8h 08m
San Francisco
Sun 10/11
8:59 pm-8:53 am
2 stops9h 54m
$497
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl to San Francisco
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to San Francisco in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-San Francisco 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 Chicago O'Hare Intl Airport-San Francisco 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 O'Hare Intl to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from O'Hare Intl with our price prediction graph.
ORD-SFO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Chicago O'Hare Intl Airport to San Francisco
Prices
Airlines
Delays
How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Francisco?
The price you pay for your flight from Chicago O'Hare Intl Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Francisco?
Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Francisco (average of $337). Flying from Chicago O'Hare Intl Airport to San Francisco in June is currently the most expensive (average of $478). 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 ORD to SFO?
Find hourly flight availability from O'Hare Intl to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 15, 2026.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 30% on flights from Chicago O'Hare Intl Airport to San Francisco by exploring options for tickets at noon.
What is the cheapest day to fly from Chicago O'Hare Intl Airport to San Francisco?
Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to San Francisco. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to San Francisco flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Chicago to San Francisco delayed?
About 25% of weekly flights between Chicago and San Francisco have experienced delays in the past year, with the average delay time being 180 minutes.
What is the most punctual flight time for Chicago to San Francisco flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to San Francisco flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 23% of flights being delayed.
The best insider tips for Chicago O'Hare Intl Airport to San Francisco flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to San Francisco trip
Our travel experts
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated August 15, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from Chicago O'Hare Intl Airport to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJames,Aug 2023
SEA - SFO
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJames,Aug 2023
SEA - SFO
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJames,Aug 2023
SEA - SFO
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJames,Aug 2023
SEA - SFO
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJames,Aug 2023
SEA - SFO
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJames,Aug 2023
SEA - SFO
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to San Francisco. 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 San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
San Bruno
Fairfield
Emeryville
Roseville
Burlingame
Rancho Cordova
Vallejo
Cupertino
Newark
Hayward
San Ramon
Redwood City
San Carlos
Manteca
Turlock
San Lorenzo
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O'Hare Intl and San Francisco flights
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Top 6 airlines flying from O'Hare Intl to San Francisco
Discover the top 6 airlines that operate flights from O'Hare Intl to San Francisco. 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 August 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$257 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$159 | Average$308 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$205 | Average$364 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$217 | Average$374 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$230 | Average$390 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$245 | Average$476 | FlexibilityNo cancel fee | On-time69% |