$85+ Cheap flights from O'Hare Intl (ORD) to San Diego (SAN)
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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
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 October or August, booked 44 days in advance, depart on a Tuesday or Wednesday and return on a Thursday
Cheap 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 March 25, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $176 (CheapOair) |
One-way from | $85 (Mytrip) |
Popular in | March |
Cheapest in | October |
Average price | $497 |
Good round-trip deal | $380 or less |
Good one-way deal | $181 or less |
Find flight deals from O'Hare Intl to San Diego
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 March 25, 2025.
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 March 25, 2025.
This Booking.com deal was found by Cheapflights users on 3/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 3/23. 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.
This Sun Country Air deal was found by Cheapflights users on 3/24. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 3/24. 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.
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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.
This Frontier deal was found by Cheapflights users on 3/24. 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.
This American Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 3/24. 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.
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 2,558,603 searches. Data last updated March 25, 2025.
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
Price
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Sat 5/3
3:08 pm-12:42 am
1 stop11h 34m
San Diego
Tue 5/6
9:08 pm-10:55 am
1 stop11h 47m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Thu 5/1
8:05 pm-5:09 pm
1 stop23h 04m
San Diego
Sun 5/4
9:08 pm-5:45 am
2 stops30h 37m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Mon 4/14
11:54 am-4:51 pm
1 stop6h 57m
San Diego
Fri 4/18
5:59 pm-8:54 pm
1 stop24h 55m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Sun 5/25
3:40 pm-8:37 pm
1 stop6h 57m
San Diego
Wed 5/28
1:58 pm-11:58 pm
1 stop8h 00m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Wed 4/16
6:56 pm-7:39 am
1 stop14h 43m
San Diego
Fri 4/18
6:15 am-6:16 pm
1 stop10h 01m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Sat 4/5
4:20 pm-11:39 pm
1 stop9h 19m
San Diego
Thu 4/10
12:29 pm-12:10 am
1 stop9h 41m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Sun 5/25
11:45 am-3:41 pm
1 stop5h 56m
San Diego
Wed 5/28
2:49 pm-9:06 pm
Nonstop4h 17m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Tue 5/27
7:50 pm-10:14 pm
Nonstop4h 24m
San Diego
Sat 5/31
4:10 pm-12:59 am
1 stop6h 49m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Mon 4/21
2:58 pm-12:42 am
1 stop11h 44m
ChicagoSan Diego
ORD - SAN
ORDSAN
Chicago O'Hare Intl
Sat 4/19
7:16 pm-7:39 am
1 stop14h 23m
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | 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.
Cheapflights Insights
Everything you need to know about your flight from Chicago O'Hare Intl Airport to San Diego
How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Diego?
Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to San Diego. Price data was last updated on March 21, 2025.
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 44 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, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Diego (average of $286). Flying from Chicago O'Hare Intl Airport to San Diego in March is currently the most expensive (average of $366). 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 March 25, 2025.
It’s optimal to fly from Chicago O'Hare Intl Airport to San Diego in the afternoon. By choosing this option you can save up to 8% 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 March 23, 2025.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to San Diego flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago O'Hare Intl Airport to San Diego
Explore weekly flight availability from O'Hare Intl to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 25, 2025.
The most flights from ORD to SAN are scheduled on a Monday (28 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).
Rainfall in San Diego by month
Plan your trip to San Diego by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.
Temperature in San Diego by month
Plan your trip to San Diego by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).
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 March 25, 2025.
To help decide which airline to fly from Chicago to San Diego, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Boarding
Comfort
Food
Overall
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Overall
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Overall
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Overall
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Overall
Entertainment
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Overall
Entertainment
Reviews
Seleste,Dec 2024
FAT - 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.
Traveling to a place near Chicago O'Hare Intl Airport?
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Alternative routes for O'Hare Intl to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from O'Hare Intl to San Diego
Discover the top 7 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 2,558,603 searches. Data last updated March 25, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$218 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$109 | Average$204 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$217 | Average$421 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$384 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$252 | Average$479 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$360 | Average$501 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$403 | Average$781 | FlexibilityNo cancel fee | On-time75% |