$133+ Cheap flights from O'Hare Intl (ORD) to San Diego (SAN)
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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SAN
Dec 11 — Dec 181
Round-trip
1 adult, Economy
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Find cheap flights from O'Hare Intl to San Diego 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 Diego are usually found in February or April, booked 50 days in advance, depart on a Thursday or Wednesday and return on a Thursday
Cheap flight deals from O'Hare Intl to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from O'Hare Intl to San DiegoExplore the most affordable flight options available from O'Hare Intl to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 11, 2026.
Explore the most affordable flight options available from O'Hare Intl to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 11, 2026.
This Trip.com deal was found by Cheapflights users on 11/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:25 am -
1 stop18h 33m
Mon 12/148:57 am -
1 stop18h 04m
Deal found 11/7![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/97:25 am -
1 stop18h 33m
Tue 12/158:57 am -
1 stop18h 04m
Deal found 11/7![Frontier logo]()
$259
This Cheapflightsfares deal was found by Cheapflights users on 11/11. 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.
Tue 12/16:21 am -
1 stop7h 16m
Sat 12/58:57 am -
1 stop18h 04m
Deal found 11/11![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:25 am -
1 stop28h 54m
Tue 12/158:57 am -
2 stops29h 36m
Deal found 11/6![Frontier logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:25 am -
1 stop18h 33m
Tue 12/158:57 am -
2 stops29h 36m
Deal found 11/6![Frontier logo]()
$262
This Cheapflightsfares deal was found by Cheapflights users on 11/9. 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 12/26:21 am -
1 stop7h 16m
Mon 12/76:30 am -
1 stop16h 24m
Deal found 11/9![Frontier logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/87:25 am -
1 stop18h 33m
Wed 12/911:14 am -
1 stop11h 40m
Deal found 11/9![Frontier logo]()
$267
This Travelocity deal was found by Cheapflights users on 11/9. 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.
Wed 12/26:21 am -
1 stop7h 16m
Fri 12/411:16 am -
1 stop11h 37m
Deal found 11/9![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 11/7. 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 12/16:21 am -
1 stop7h 16m
Wed 12/911:14 am -
1 stop11h 40m
Deal found 11/7![Frontier logo]()
$269
Best flights from O'Hare Intl to San DiegoDiscover carefully curated flight deals from O'Hare Intl to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 11, 2026.
Discover carefully curated flight deals from O'Hare Intl to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 11/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/159:00 am -
1 stop15h 59m
Tue 12/225:37 pm -
Nonstop4h 22m
Deal found 11/10![Alaska Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/168:50 am -
Nonstop4h 37m
Sat 12/194:20 pm -
Nonstop4h 09m
Deal found 11/10![United Airlines logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 11/8. 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 12/222:17 pm -
Nonstop4h 45m
Sat 12/267:00 am -
Nonstop4h 19m
Deal found 11/8![Alaska Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2012:40 pm -
Nonstop4h 34m
Tue 12/2910:30 pm -
Nonstop4h 12m
Deal found 11/6![United Airlines logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/122:13 pm -
Nonstop4h 47m
Mon 12/146:15 am -
1 stop9h 34m
Deal found 11/6![Alaska Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 11/9. 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 11/207:00 am -
Nonstop4h 27m
Fri 11/2710:30 pm -
Nonstop4h 04m
Deal found 11/9![United Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 11/9. 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 12/17:27 am -
Nonstop4h 45m
Sat 12/510:29 am -
Nonstop4h 18m
Deal found 11/9![Alaska Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 11/9. 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 1/38:13 pm -
Nonstop4h 42m
Sun 1/106:50 am -
Nonstop4h 18m
Deal found 11/9![United Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 11/9. 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 12/22:13 pm -
Nonstop4h 47m
Mon 12/75:38 pm -
Nonstop4h 21m
Deal found 11/9![Alaska Airlines logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 11/8. 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 11/229:01 pm -
Nonstop4h 55m
Wed 11/251:45 pm -
Nonstop4h 18m
Deal found 11/8![Alaska Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 11/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:00 am -
Nonstop4h 46m
Fri 12/2512:32 pm -
Nonstop4h 22m
Deal found 11/10![Alaska Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 11/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/237:00 am -
Nonstop4h 46m
Fri 1/17:00 am -
Nonstop4h 19m
Deal found 11/10![Alaska Airlines logo]()
$397
Last-minute flights from O'Hare Intl to San DiegoDiscover last-minute flight deals from O'Hare Intl to San Diego. Data last updated November 11, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to San Diego. Data last updated November 11, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 11/11. 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.
Tue 12/16:21 am -
1 stop7h 16m
Sat 12/58:57 am -
1 stop18h 04m
Deal found 11/11![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 11/7. 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 12/16:21 am -
1 stop7h 16m
Wed 12/911:14 am -
1 stop11h 40m
Deal found 11/7![Frontier logo]()
$269
This Cheapflightsfares deal was found by Cheapflights users on 11/9. 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 12/26:21 am -
1 stop7h 16m
Mon 12/76:30 am -
1 stop16h 24m
Deal found 11/9![Frontier logo]()
$265
This Travelocity deal was found by Cheapflights users on 11/9. 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.
Wed 12/26:21 am -
1 stop7h 16m
Fri 12/411:16 am -
1 stop11h 37m
Deal found 11/9![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:25 am -
1 stop18h 33m
Tue 12/158:57 am -
2 stops29h 36m
Deal found 11/6![Frontier logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/87:25 am -
1 stop18h 33m
Wed 12/911:14 am -
1 stop11h 40m
Deal found 11/9![Frontier logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/97:25 am -
1 stop18h 33m
Tue 12/158:57 am -
1 stop18h 04m
Deal found 11/7![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:25 am -
1 stop28h 54m
Tue 12/158:57 am -
2 stops29h 36m
Deal found 11/6![Frontier logo]()
$261
This Trip.com deal was found by Cheapflights users on 11/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:25 am -
1 stop18h 33m
Mon 12/148:57 am -
1 stop18h 04m
Deal found 11/7![Frontier logo]()
$258
One-way flights from O'Hare Intl to San DiegoSearch for one-way flight options from O'Hare Intl to San Diego. Find affordable one-way fares based on user searches. Data last updated November 11, 2026.
Search for one-way flight options from O'Hare Intl to San Diego. Find affordable one-way fares based on user searches. Data last updated November 11, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:21 am -
1 stop7h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 1/1911:00 am -
2 stops29h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$135
This eDestinos deal was found by Cheapflights users on 11/9. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:15 am -
1 stop28h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$136
This Cheapflightsfares deal was found by Cheapflights users on 11/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/126:10 am -
1 stop12h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Frontier logo]()
$138
This Super.com deal was found by Cheapflights users on 11/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:21 am -
1 stop27h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Frontier logo]()
$139
This Booking.com deal was found by Cheapflights users on 11/7. 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.
Thu 12/107:25 am -
1 stop18h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 1/1511:47 am -
1 stop7h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$141
This Cheapflightsfares deal was found by Cheapflights users on 11/11. 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.
Fri 12/1111:29 am -
1 stop8h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Frontier logo]()
$142
This Frontier deal was found by Cheapflights users on 11/10. 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 12/207:35 am -
1 stop6h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/146:21 am -
1 stop27h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$145
Find flight deals from O'Hare Intl to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to San Diego (SAN). 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 November 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $258 (Trip.com) |
One-way from | $133 (Cheapflightsfares) |
Popular in | July |
Cheapest in | February |
Average price | $355 |
Good round-trip deal | $306 or less |
Good one-way deal | $163 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to San Diego 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 November 11, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Sun 1/31
7:40 am-10:19 am
Nonstop4h 39m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Sat 11/21
8:02 pm-10:40 pm
Nonstop4h 38m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Tue 11/24
7:26 am-10:07 am
Nonstop4h 41m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Thu 11/19
8:02 pm-10:40 pm
Nonstop4h 38m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Sun 1/31
8:45 am-11:21 am
Nonstop4h 36m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Mon 11/16
7:57 pm-10:43 pm
Nonstop4h 46m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
Quickest round-trip
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Sat 11/28
7:00 am-9:27 am
Nonstop4h 27m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Fri 1/15
7:55 pm-10:37 pm
Nonstop4h 42m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Thu 11/26
7:00 am-9:29 am
Nonstop4h 29m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
ChicagoSan Diego
ORD Chicago O'Hare Intl - SAN San Diego
ORDSAN
Chicago O'Hare Intl
Fri 12/18
8:50 am-11:36 am
Nonstop4h 46m
San Diego
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl to San Diego
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 Diego in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| 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*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-San Diego 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 Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-San Diego 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 Diego 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 Diego 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 Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from O'Hare Intl with our price prediction graph.
ORD-SAN
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 Diego
Prices
Airlines
How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Diego?
The price you pay for your flight from Chicago O'Hare Intl Airport to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 49 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 Diego?
Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Diego (average of $263). Flying from Chicago O'Hare Intl Airport to San Diego in July is currently the most expensive (average of $369). 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 SAN?
Find hourly flight availability from O'Hare Intl to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 11, 2026.
It’s optimal to fly from Chicago O'Hare Intl Airport to San Diego in the evening. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight at noon.
What is the cheapest day to fly from Chicago O'Hare Intl Airport to San Diego?
Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to San Diego. Price data was last updated on November 7, 2026.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to San Diego flight should consider departing on Sunday evenings 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.
The best insider tips for Chicago O'Hare Intl Airport to San Diego 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 Diego trip
Our travel experts
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated November 11, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Chicago O'Hare Intl Airport to San Diego 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
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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O'Hare Intl and San Diego flights
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Top 6 airlines flying from O'Hare Intl to San Diego
Discover the top 6 airlines that operate flights from O'Hare Intl to San Diego. 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 November 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$124 | Average$273 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$153 | Average$307 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$157 | Average$333 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$167 | Average$358 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$170 | Average$338 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$186 | Average$297 | FlexibilityNo cancel fee | On-timeN/A |