$121+ Cheap flights from San Francisco (SFO) to O'Hare Intl (ORD)
This is the cheapest round-trip 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.
SFO — ORD
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to O'Hare Intl 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
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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 San Francisco to Chicago O'Hare Intl are usually found in January or February, booked 67 days in advance, depart on a Wednesday or Thursday and return on a Thursday
Cheap flight deals from San Francisco to O'Hare Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Francisco to O'Hare IntlExplore the most affordable flight options available from San Francisco to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
Explore the most affordable flight options available from San Francisco to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
This Mytrip deal was found by Cheapflights users on 9/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:11 am -
2 stops19h 23m
Wed 10/286:30 am -
1 stop6h 47m
Deal found 9/19![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 9/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:20 pm -
1 stop10h 01m
Tue 11/107:15 am -
1 stop12h 55m
Deal found 9/19![Frontier logo]()
$258
This Frontier deal was found by Cheapflights users on 9/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:21 pm -
1 stop12h 52m
Thu 11/1210:26 am -
1 stop12h 14m
Deal found 9/21![Frontier logo]()
$259
This Mytrip deal was found by Cheapflights users on 9/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:02 pm -
1 stop10h 32m
Mon 10/266:30 am -
2 stops16h 08m
Deal found 9/19![Frontier logo]()
$260
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:30 am -
1 stop16h 24m
Mon 12/147:25 am -
1 stop28h 14m
Deal found 9/20![Frontier logo]()
$261
This Cheapflightsfares deal was found by Cheapflights users on 9/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:58 am -
1 stop19h 36m
Sun 10/256:30 am -
1 stop19h 45m
Deal found 9/22![Frontier logo]()
$262
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:11 am -
2 stops19h 23m
Mon 10/266:30 am -
2 stops16h 08m
Deal found 9/20![Frontier logo]()
$263
This Cheapflightsfares deal was found by Cheapflights users on 9/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:25 pm -
1 stop9h 09m
Sat 10/1712:37 pm -
1 stop11h 48m
Deal found 9/22![Frontier logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:14 pm -
1 stop9h 07m
Tue 10/208:01 pm -
1 stop26h 37m
Deal found 9/22![Frontier logo]()
$266
This Cheapflightsfares deal was found by Cheapflights users on 9/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:52 pm -
1 stop7h 43m
Mon 11/96:30 am -
1 stop6h 47m
Deal found 9/19![Frontier logo]()
$267
Best flights from San Francisco to O'Hare IntlDiscover carefully curated flight deals from San Francisco to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
Discover carefully curated flight deals from San Francisco to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:35 am -
Nonstop4h 26m
Mon 11/29:57 pm -
Nonstop4h 56m
Deal found 9/22![United Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 9/21. 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.
Sun 3/217:49 pm -
1 stop16h 05m
Thu 3/256:00 am -
1 stop9h 48m
Deal found 9/21![Alaska Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:00 am -
Nonstop4h 25m
Wed 10/212:32 pm -
Nonstop4h 48m
Deal found 9/21![United Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:00 am -
Nonstop4h 25m
Mon 10/196:07 am -
Nonstop4h 38m
Deal found 9/22![United Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:41 pm -
Nonstop4h 19m
Mon 10/269:57 pm -
Nonstop4h 56m
Deal found 9/23![United Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:42 pm -
Nonstop4h 19m
Mon 10/199:40 pm -
Nonstop4h 50m
Deal found 9/23![United Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:53 pm -
Nonstop4h 23m
Thu 12/243:59 pm -
Nonstop5h 00m
Deal found 9/19![United Airlines logo]()
$360
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1711:30 pm -
Nonstop4h 26m
Mon 12/219:51 pm -
Nonstop5h 08m
Deal found 9/20![United Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:42 pm -
Nonstop4h 17m
Fri 11/276:00 am -
Nonstop4h 44m
Deal found 9/21![United Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/206:53 pm -
Nonstop4h 23m
Tue 12/228:17 pm -
Nonstop5h 08m
Deal found 9/22![United Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:00 am -
Nonstop4h 24m
Mon 11/231:30 pm -
Nonstop4h 50m
Deal found 9/21![United Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/42:17 pm -
Nonstop4h 23m
Mon 12/74:00 pm -
Nonstop4h 54m
Deal found 9/19![United Airlines logo]()
$415
Last-minute flights from San Francisco to O'Hare IntlDiscover last-minute flight deals from San Francisco to O'Hare Intl. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to O'Hare Intl. Data last updated September 23, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:25 pm -
1 stop9h 09m
Fri 10/168:01 pm -
1 stop26h 37m
Deal found 9/22![Frontier logo]()
$259
This Cheapflightsfares deal was found by Cheapflights users on 9/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:25 pm -
1 stop9h 09m
Sat 10/1712:37 pm -
1 stop11h 48m
Deal found 9/22![Frontier logo]()
$265
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:39 am -
2 stops17h 55m
Wed 10/218:01 pm -
1 stop15h 53m
Deal found 9/23![Frontier logo]()
$261
This Frontier deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:25 pm -
1 stop9h 09m
Thu 10/2910:40 am -
1 stop13h 49m
Deal found 9/20![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:14 pm -
1 stop9h 07m
Tue 10/208:01 pm -
1 stop26h 37m
Deal found 9/22![Frontier logo]()
$266
This Mytrip deal was found by Cheapflights users on 9/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:11 am -
2 stops19h 23m
Wed 10/286:30 am -
1 stop6h 47m
Deal found 9/19![Frontier logo]()
$257
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:11 am -
2 stops19h 23m
Mon 10/266:30 am -
2 stops16h 08m
Deal found 9/20![Frontier logo]()
$263
This Cheapflightsfares deal was found by Cheapflights users on 9/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:58 am -
1 stop19h 36m
Sun 10/256:30 am -
1 stop19h 45m
Deal found 9/22![Frontier logo]()
$262
This Mytrip deal was found by Cheapflights users on 9/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:02 pm -
1 stop10h 32m
Mon 10/266:30 am -
2 stops16h 08m
Deal found 9/19![Frontier logo]()
$260
This Cheapflightsfares deal was found by Cheapflights users on 9/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:52 pm -
1 stop7h 43m
Mon 11/26:30 am -
1 stop19h 50m
Deal found 9/19![Frontier logo]()
$267
One-way flights from San Francisco to O'Hare IntlSearch for one-way flight options from San Francisco to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
Search for one-way flight options from San Francisco to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:20 pm -
1 stop10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:11 am -
2 stops19h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$123
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:25 pm -
1 stop9h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$124
This Super.com deal was found by Cheapflights users on 9/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:25 pm -
1 stop9h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$125
This Cheapflightsfares deal was found by Cheapflights users on 9/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:58 am -
1 stop19h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$126
This Cheapflightsfares deal was found by Cheapflights users on 9/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:59 pm -
1 stop7h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$127
This Mytrip deal was found by Cheapflights users on 9/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:11 am -
2 stops19h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:25 pm -
2 stops26h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$131
This Super.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:17 pm -
1 stop12h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$132
This CheapOair deal was found by Cheapflights users on 9/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:21 pm -
1 stop12h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 9/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:17 pm -
1 stop12h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$135
Find flight deals from San Francisco to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 September 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Mytrip) |
One-way from | $121 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $410 |
Good round-trip deal | $377 or less |
Good one-way deal | $209 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco 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 7,457,451 searches. Data last updated September 23, 2026.
Use the filters below to find and compare flights from San Francisco to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Wed 11/4
12:55 am-7:13 am
Nonstop4h 18m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$169
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Sat 10/10
11:10 pm-1:50 pm
1 stop12h 40m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$169
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Sat 10/24
6:10 am-12:45 pm
Nonstop4h 35m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$169
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Tue 11/10
3:20 pm-9:45 pm
Nonstop4h 25m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$169
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Sat 10/10
10:25 pm-8:39 am
1 stop8h 14m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$179
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Mon 1/4
1:00 pm-11:59 pm
1 stop8h 59m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$182
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Sat 12/26
6:34 am-1:03 pm
Nonstop4h 29m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$183
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Sun 10/11
6:15 pm-10:38 am
1 stop14h 23m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$198
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Thu 10/29
6:07 am-6:20 pm
1 stop10h 13m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$201
San FranciscoChicago
SFO San Francisco - ORD Chicago O'Hare Intl
SFOORD
San Francisco
Sun 12/20
11:59 pm-9:48 am
1 stop7h 49m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$213
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from San Francisco to O'Hare Intl
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 San Francisco to O'Hare Intl in September.
| 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 Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Francisco-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 San Francisco-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-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 San Francisco-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 San Francisco to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from San Francisco with our price prediction graph.
SFO-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.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Chicago O'Hare Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from San Francisco to Chicago O'Hare Intl Airport?
The price you pay for your flight from San Francisco to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 66 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 San Francisco to Chicago O'Hare Intl Airport?
Currently, January is the cheapest month in which you can book a flight from San Francisco to Chicago O'Hare Intl Airport (average of $377). Flying from San Francisco to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $508). 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 SFO to ORD?
Find hourly flight availability from San Francisco to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 23, 2026.
One of the essential ways to save on airfare from San Francisco to Chicago O'Hare Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 10% on airfare.
What is the cheapest day to fly from San Francisco to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from San Francisco to O'Hare Intl. Price data was last updated on September 19, 2026.
Travelers seeking maximum savings on their San Francisco to Chicago O'Hare Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from San Francisco to Chicago delayed?
About 10% of weekly flights between San Francisco and Chicago have experienced delays in the past year, with the average delay time being 186 minutes.
What is the most punctual flight time for San Francisco to Chicago 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 Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Francisco to Chicago flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 9% of flights being delayed.
The best insider tips for San Francisco to Chicago O'Hare Intl Airport 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 San Francisco to Chicago O'Hare Intl Airport trip
Our travel experts
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 September 23, 2026.
See what other customers who have flown with Alaska Airlines,United Airlines, andJetBlue from San Francisco to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
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 San Francisco 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
Des Plaines
Lake Geneva
Naperville
Glenview
Schaumburg
Oakbrook Terrace
Delavan
Oak Brook
Aurora
Libertyville
Rockford
Hoffman Estates
Beloit
Orland Park
South Holland
Elgin
Racine
Janesville
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Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 23, 2026.
San Francisco and O'Hare Intl flights
Browse other San Francisco and O'Hare Intl flight options. Last updated on September 23, 2026.
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Top 6 airlines flying from San Francisco to O'Hare Intl
Discover the top 6 airlines that operate flights from San Francisco 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 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$122 | Average$352 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$157 | Average$311 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$204 | Average$402 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$225 | Average$324 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$237 | Average$416 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$263 | Average$495 | FlexibilityNo cancel fee | On-time69% |