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$90+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SAN
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Chicago O'Hare Intl to San Diego are usually found in October or September, 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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$142
(Cheapflightsfares)

One-way from

$90
(Mytrip)

Popular in

March

Cheapest in

October

Average price

$461

Good round-trip deal

$400 or less

Good one-way deal

$215 or less
Provider with most accurate pricing for Chicago O'Hare Intl-San Diego flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-San Diego flights.
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From Chicago O'Hare Intl to San Diego
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One-way flight from Chicago O'Hare Intl to San Diego
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Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to San Diego.
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Price to beat on a one-way flight from Chicago O'Hare Intl to San Diego.
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Find flight deals from O'Hare Intl to San Diego

Cheapest flights from O'Hare Intl to San Diego
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 febrero 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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.
vie. 4/42:34 pmORD - SAN
1 stop11h 17mSpirit Airlines
lun. 4/75:30 pmSAN - ORD
1 stop11h 12mSpirit Airlines
Deal found 2/20$142
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
dom. 3/96:45 amORD - SAN
1 stop7h 03mMultiple Airlines
mar. 3/258:07 pmSAN - ORD
1 stop8h 35mMultiple Airlines
Deal found 2/20$144
This Frontier deal was found by Cheapflights users on 2/20. 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.
mar. 3/46:50 amORD - SAN
1 stop6h 58mFrontier
sáb. 3/810:29 amSAN - ORD
1 stop8h 45mFrontier
Deal found 2/20$145
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/212:15 pmORD - SAN
1 stop10h 05mDelta
mar. 5/67:10 amSAN - ORD
1 stop9h 00mDelta
Deal found 2/20$291

Find flights from O'Hare Intl to San Diego within your budget

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 febrero 20, 2025.

Fly from

O'Hare Intl

Fly to

San Diego

Route

Depart

Return

Price

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

vie. 4/4

2:34 pm-11:51 pm

1 stop11h 17m

San Diego

lun. 4/7

5:30 pm-6:42 am

1 stop11h 12m

$142

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

dom. 3/9

6:45 am-11:48 am

1 stop7h 03m

San Diego

mar. 3/25

8:07 pm-6:42 am

1 stop8h 35m

$144

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

mar. 3/4

6:50 am-11:48 am

1 stop6h 58m

San Diego

sáb. 3/8

10:29 am-9:14 pm

1 stop8h 45m

$145

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

lun. 4/21

2:15 pm-10:20 pm

1 stop10h 05m

San Diego

mar. 5/6

7:10 am-6:10 pm

1 stop9h 00m

$291

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

mar. 5/20

3:21 pm-4:34 pm

2 stops27h 13m

$90

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

dom. 3/9

6:45 am-11:48 am

1 stop7h 03m

$94

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

mar. 3/18

2:20 pm-10:20 pm

1 stop10h 00m

$102

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

mar. 4/22

6:58 pm-10:05 am

1 stop17h 07m

$127

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

lun. 3/3

12:02 pm-2:01 pm

3 stops27h 59m

$162

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

jue. 5/15

8:05 pm-5:21 pm

1 stop23h 16m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 14 results
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Travel insights for flights from O'Hare Intl to San Diego

Get recent, data-driven insights about flights from O'Hare Intl to San Diego including ideal travel times, pricing trends, and more.

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 February 14, 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 febrero 20, 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 February 16, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to San Diego flight should consider departing on Tuesday mornings 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 febrero 20, 2025.

The most flights from ORD to SAN are scheduled on a Thursday (30 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 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 febrero 20, 2025.
To help decide which airline to fly from Chicago to San Diego, see what other customers have to say about Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

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.

  • What airport do you fly into for flights to San Diego from Chicago O'Hare Intl?

    San Diego (SAN) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to San Diego. You should not have trouble finding flights to San Diego from Chicago O'Hare Intl; the airport handles an average of 23 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 7 airlines have flights to the San Diego airport from Chicago O'Hare Intl. It is only a 2.6 mi journey from San Diego (SAN) to San Diego’s city center.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to San Diego round-trip?

    According to our current data, Spirit Airlines ($142), Frontier ($145), and Delta ($283) offers the cheapest pricing from Chicago O'Hare Intl Airport to San Diego. These flights start at 66% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to San Diego one-way?

    $90 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Frontier and Alaska Airlines, with prices starting from $94 and $127, respectively.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to San Diego?

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to San Diego are Brussels Airlines (83%), United Airlines (79%) and Air Canada (79%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to San Diego?

    Looking at all options, your cheapest flight can be booked for $163. While the most popular route (Chicago O'Hare Intl - San Diego) can be booked for $81 on average our data indicates $762 when flying from Chicago O'Hare Intl Airport to San Diego.

  • Can I find deals for flights from O'Hare Intl to San Diego that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to San Diego.

  • Can I find deals for business class flights from O'Hare Intl to San Diego?

    Yes. Cheapflights offers flight deals from O'Hare Intl to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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.

See more FAQs

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 locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado
Borrego Springs

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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.
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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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$103Average$221FlexibilityNo cancel feeOn-time65%
FrontierCheapest$108Average$189FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$217Average$421FlexibilityNo cancel feeOn-time71%
DeltaCheapest$237Average$367FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$246Average$476FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$360Average$501FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$403Average$721FlexibilityNo cancel feeOn-time75%
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