$131+ Cheap flights from San Diego (SAN) 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ORD
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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Find cheap flights from San Diego 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
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 San Diego to Chicago O'Hare Intl are usually found in January or February, booked 72 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from San Diego to O'Hare Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to O'Hare IntlExplore the most affordable flight options available from San Diego to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
Explore the most affordable flight options available from San Diego to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
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.
Sat 10/176:25 am -
2 stops10h 42m
Mon 10/194:20 pm -
1 stop19h 22m
Deal found 8/12![Frontier logo]()
$260
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:03 am -
Nonstop4h 19m
Tue 9/19:20 am -
1 stop8h 21m
Deal found 8/12![Multiple Airlines logo]()
$261
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:03 pm -
Nonstop4h 18m
Sun 9/278:55 pm -
1 stop25h 22m
Deal found 8/12![Multiple Airlines logo]()
$262
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.
Fri 9/112:00 pm -
1 stop7h 59m
Mon 9/215:10 pm -
1 stop6h 56m
Deal found 8/13![Delta logo]()
$263
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.
Wed 9/28:00 am -
1 stop8h 49m
Wed 9/91:51 pm -
1 stop7h 35m
Deal found 8/14![Delta logo]()
$264
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:25 am -
1 stop29h 11m
Thu 9/177:20 am -
Nonstop4h 40m
Deal found 8/13![Multiple Airlines logo]()
$265
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:45 pm -
1 stop19h 51m
Tue 8/252:41 pm -
1 stop20h 24m
Deal found 8/13![Frontier logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/117:03 am -
Nonstop4h 19m
Mon 9/146:30 am -
1 stop11h 28m
Deal found 8/16![Multiple Airlines logo]()
$267
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.
Sat 9/53:45 pm -
1 stop19h 51m
Sun 9/207:20 am -
Nonstop4h 40m
Deal found 8/14![Multiple Airlines logo]()
$268
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:17 pm -
1 stop10h 31m
Thu 9/101:01 pm -
1 stop6h 59m
Deal found 8/12![Multiple Airlines logo]()
$269
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.
Sat 10/318:32 pm -
1 stop12h 29m
Fri 11/611:06 am -
1 stop6h 35m
Deal found 8/14![Frontier logo]()
$270
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:03 pm -
1 stop6h 35m
Sun 10/41:01 pm -
1 stop6h 59m
Deal found 8/13![Frontier logo]()
$271
Best flights from San Diego to O'Hare IntlDiscover carefully curated flight deals from San Diego to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from San Diego to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 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.
Mon 10/1210:00 pm -
1 stop7h 41m
Fri 10/162:45 pm -
1 stop6h 29m
Deal found 8/13![Delta logo]()
$263
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.
Wed 9/912:41 pm -
1 stop7h 04m
Tue 9/151:30 pm -
Nonstop4h 19m
Deal found 8/14![United Airlines logo]()
$287
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.
Sat 10/3112:35 pm -
Nonstop4h 18m
Tue 11/37:00 am -
1 stop9h 47m
Deal found 8/14![Alaska Airlines logo]()
$297
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.
Fri 9/1112:52 pm -
1 stop9h 07m
Sat 9/191:51 pm -
1 stop9h 28m
Deal found 8/13![Delta logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:03 am -
Nonstop4h 19m
Tue 10/69:00 am -
1 stop10h 52m
Deal found 8/16![Alaska Airlines logo]()
$297
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.
Thu 9/106:18 am -
Nonstop4h 21m
Sun 9/137:05 am -
Nonstop4h 27m
Deal found 8/14![United Airlines logo]()
$307
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.
Sat 9/58:45 pm -
1 stop13h 22m
Wed 9/92:18 pm -
Nonstop4h 37m
Deal found 8/14![Alaska Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/16. 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 12/184:29 pm -
Nonstop4h 12m
Thu 1/75:00 am -
1 stop6h 17m
Deal found 8/16![United Airlines logo]()
$343
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 8/306:18 am -
Nonstop4h 19m
Sat 9/54:00 pm -
Nonstop4h 30m
Deal found 8/14![United Airlines logo]()
$346
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 8/291:03 pm -
Nonstop4h 18m
Wed 9/26:05 am -
Nonstop4h 27m
Deal found 8/16![Alaska Airlines logo]()
$355
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:35 pm -
1 stop9h 45m
Sun 9/207:20 am -
Nonstop4h 40m
Deal found 8/13![Alaska Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/16. 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 12/234:28 pm -
1 stop6h 02m
Tue 12/297:00 am -
Nonstop4h 35m
Deal found 8/16![United Airlines logo]()
$376
Last-minute flights from San Diego to O'Hare IntlDiscover last-minute flight deals from San Diego to O'Hare Intl. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to O'Hare Intl. Data last updated August 17, 2026 and is based on user searches.
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:45 pm -
1 stop19h 51m
Tue 8/252:41 pm -
1 stop20h 24m
Deal found 8/13![Frontier logo]()
$266
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:25 am -
1 stop29h 11m
Thu 9/177:20 am -
Nonstop4h 40m
Deal found 8/13![Multiple Airlines logo]()
$265
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:03 am -
Nonstop4h 19m
Tue 9/19:20 am -
1 stop8h 21m
Deal found 8/12![Multiple Airlines logo]()
$261
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.
Wed 9/28:00 am -
1 stop8h 49m
Wed 9/91:51 pm -
1 stop7h 35m
Deal found 8/14![Delta logo]()
$264
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:45 pm -
Nonstop4h 14m
Sun 9/69:20 am -
1 stop8h 21m
Deal found 8/14![Multiple Airlines 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.
Sat 9/53:45 pm -
1 stop19h 51m
Sun 9/207:20 am -
Nonstop4h 40m
Deal found 8/14![Multiple Airlines logo]()
$268
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:17 pm -
1 stop10h 31m
Thu 9/101:01 pm -
1 stop6h 59m
Deal found 8/12![Multiple Airlines logo]()
$269
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 9/112:00 pm -
1 stop7h 59m
Wed 9/166:59 pm -
1 stop6h 48m
Deal found 8/12![Delta logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/117:03 am -
Nonstop4h 19m
Mon 9/146:30 am -
1 stop11h 28m
Deal found 8/16![Multiple Airlines logo]()
$267
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 9/111:03 pm -
Nonstop4h 18m
Sun 9/206:30 am -
1 stop19h 21m
Deal found 8/14![Multiple Airlines logo]()
$270
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:03 pm -
Nonstop4h 18m
Sun 9/278:55 pm -
1 stop25h 22m
Deal found 8/12![Multiple Airlines logo]()
$262
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:03 pm -
1 stop6h 35m
Sun 10/41:01 pm -
1 stop6h 59m
Deal found 8/13![Frontier logo]()
$271
One-way flights from San Diego to O'Hare IntlSearch for one-way flight options from San Diego to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from San Diego to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
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.
Thu 9/247:04 pm -
2 stops27h 41m
Deal found 8/14![Frontier logo]()
$131
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.
Tue 8/253:45 pm -
1 stop19h 51m
Deal found 8/13![Frontier logo]()
$132
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.
Mon 8/313:00 pm -
1 stop6h 48m
Deal found 8/13![Delta logo]()
$133
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:25 am -
1 stop29h 11m
Deal found 8/14![Frontier logo]()
$134
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 9/279:03 pm -
1 stop6h 35m
Deal found 8/14![Frontier logo]()
$135
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 11/69:57 am -
2 stops22h 04m
Deal found 8/14![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 8/16. 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 9/139:03 pm -
1 stop6h 35m
Deal found 8/16![Frontier logo]()
$138
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.
Thu 10/155:46 pm -
Nonstop4h 13m
Deal found 8/14![Alaska Airlines logo]()
$139
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 9/121:38 pm -
2 stops17h 42m
Deal found 8/13![Frontier logo]()
$140
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:25 am -
1 stop15h 59m
Deal found 8/12![Frontier logo]()
$141
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:59 pm -
1 stop20h 03m
Deal found 8/12![Frontier logo]()
$142
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.
Tue 9/156:25 am -
2 stops12h 04m
Deal found 8/13![Frontier logo]()
$143
Find flight deals from San Diego to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) 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 August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $260 (Priceline) |
One-way from | $131 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $356 |
Good round-trip deal | $327 or less |
Good one-way deal | $201 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego 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 August 17, 2026.
Use the filters below to find and compare flights from San Diego to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Mon 10/12
10:00 pm-7:41 am
1 stop7h 41m
Chicago O'Hare Intl
Fri 10/16
2:45 pm-7:14 pm
1 stop6h 29m
$263
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Fri 9/11
12:52 pm-11:59 pm
1 stop9h 07m
Chicago O'Hare Intl
Sat 9/19
1:51 pm-9:19 pm
1 stop9h 28m
$263
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Wed 9/9
12:41 pm-9:45 pm
1 stop7h 04m
Chicago O'Hare Intl
Tue 9/15
1:30 pm-3:49 pm
Nonstop4h 19m
$287
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Sat 10/31
12:35 pm-6:53 pm
Nonstop4h 18m
Chicago O'Hare Intl
Tue 11/3
7:00 am-2:47 pm
1 stop9h 47m
$297
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Wed 9/30
7:03 am-1:22 pm
Nonstop4h 19m
Chicago O'Hare Intl
Tue 10/6
9:00 am-5:52 pm
1 stop10h 52m
$297
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Sat 9/5
8:45 pm-12:07 pm
1 stop13h 22m
Chicago O'Hare Intl
Wed 9/9
2:18 pm-4:55 pm
Nonstop4h 37m
$299
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Thu 9/10
6:18 am-12:39 pm
Nonstop4h 21m
Chicago O'Hare Intl
Sun 9/13
7:05 am-9:32 am
Nonstop4h 27m
$307
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Fri 12/18
4:29 pm-10:41 pm
Nonstop4h 12m
Chicago O'Hare Intl
Thu 1/7
5:00 am-9:17 am
1 stop6h 17m
$343
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Sun 8/30
6:18 am-12:37 pm
Nonstop4h 19m
Chicago O'Hare Intl
Sat 9/5
4:00 pm-6:30 pm
Nonstop4h 30m
$346
Quickest round-trip
San DiegoChicago
SAN San Diego - ORD Chicago O'Hare Intl
SANORD
San Diego
Sat 8/29
1:03 pm-7:21 pm
Nonstop4h 18m
Chicago O'Hare Intl
Wed 9/2
6:05 am-8:32 am
Nonstop4h 27m
$355
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from San Diego 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 Diego to O'Hare Intl 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 Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Diego-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 Diego-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-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 Diego-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 Diego-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 Diego to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from San Diego with our price prediction graph.
SAN-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 Diego to Chicago O'Hare Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from San Diego to Chicago O'Hare Intl Airport?
To ensure you get the cheapest price possible for a flight from San Diego to Chicago O'Hare Intl Airport, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Diego to Chicago O'Hare Intl Airport?
Currently, January is the cheapest month in which you can book a flight from San Diego to Chicago O'Hare Intl Airport (average of $247). Flying from San Diego to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $384). 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 SAN to ORD?
Find hourly flight availability from San Diego 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 August 17, 2026.
It’s typically best to fly out from San Diego to Chicago O'Hare Intl Airport in the afternoon. Doing so could potentially save you 25% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from San Diego to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from San Diego to O'Hare Intl. Price data was last updated on August 15, 2026.
Travelers seeking maximum savings on their San Diego to Chicago O'Hare Intl Airport flight should consider departing on Thursday 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 Diego to Chicago delayed?
About 10% of weekly flights between San Diego 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 Diego to Chicago flights?
Historically, flights departing at night 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 Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Diego to Chicago flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 7% of flights being delayed.
The best insider tips for San Diego 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 Diego 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 August 17, 2026.
Read through reviews of airlines operating flights from San Diego to Chicago O'Hare Intl Airport, such as Alaska Airlines,Hawaiian Airlines, andUnited Airlines. Reviews also offer insight into each airline's 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
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Entertainment
7.0
Boarding
8.1
Overall
7.9
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Related info for your journey
Find useful and relevant information for your journey from San Diego 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
Oakbrook Terrace
Delavan
South Holland
Libertyville
Gurnee
Orland Park
Hoffman Estates
Beloit
Rockford
Aurora
Racine
Great Lakes
Janesville
Joliet
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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 August 17, 2026.
San Diego and O'Hare Intl flights
Browse other San Diego and O'Hare Intl flight options. Last updated on August 17, 2026.
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Top 5 airlines flying from San Diego to O'Hare Intl
Discover the top 5 airlines that operate flights from San Diego 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 August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$119 | Average$263 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$197 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$156 | Average$322 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$165 | Average$351 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$176 | Average$367 | FlexibilityNo cancel fee | On-time69% |