How long is the flight from Chicago O'Hare Intl Airport to San Diego?

For as low as £194, Alaska Airlines can have you in San Diego from Chicago O'Hare Intl Airport in 4h 38m. The distance between Chicago O'Hare Intl Airport and San Diego is about 1719 mi. All flights are typically direct.

Weekly flight availability from Chicago O'Hare Intl Airport to San Diego

The most flights from ORD to SAN are scheduled on a Monday (51 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (25 on average).

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to San Diego on time: ITA Airways (70%), Air Canada (70%), American Airlines (67%).

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

For a flight from Chicago O'Hare Intl to San Diego, you will be flying into San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 33 inbound flights from Chicago O'Hare Intl per day. 0 airlines have flights to San Diego from Chicago O'Hare Intl on a regular basis.

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 holiday 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.

£95+ Cheap Flights from Chicago O'Hare Intl Airport to San Diego

Cheap flight deals from O'Hare Intl to San Diego

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 30 September 2026.

Sat 24/1013:30 -

Nonstop4h 19m

Sat 31/1006:50 -

Nonstop4h 19m

Deal found 30/9£194

Sat 17/1020:16 -

Nonstop4h 25m

Sat 24/1019:41 -

1 stop7h 20m

Deal found 25/9£199

Sun 1/1117:15 -

1 stop28h 32m

Tue 3/1106:25 -

1 stop15h 56m

Deal found 29/9£200

Tue 27/1006:59 -

1 stop6h 32m

Tue 27/1016:18 -

1 stop5h 41m

Deal found 27/9£206

Wed 11/1106:30 -

1 stop11h 28m

Mon 16/1120:32 -

1 stop6h 41m

Deal found 28/9£207

Sat 24/1011:19 -

1 stop8h 36m

Sat 31/1011:31 -

1 stop6h 59m

Deal found 27/9£209

Sun 1/1119:57 -

Nonstop4h 46m

Tue 3/1112:41 -

Nonstop4h 18m

Deal found 29/9£218

Wed 11/1114:15 -

Nonstop4h 41m

Mon 16/1112:41 -

Nonstop4h 18m

Deal found 28/9£220

Wed 4/1108:50 -

Nonstop4h 37m

Sun 8/1106:50 -

Nonstop4h 19m

Deal found 29/9£224

Sun 1/1117:15 -

1 stop28h 32m

Tue 3/1107:02 -

Nonstop4h 15m

Deal found 29/9£229

Find flight deals from O'Hare Intl to San Diego

Round-trip from	£194
One-way from	£95
Popular in	July
Cheapest in	February
Average price	£278

United Airlines
24/10-31/10
Nonstop
8h 38m total
Chicago to San Diego

Search Deals

Alaska Airlines
4/11-31/12
Nonstop
4h 43m total
Chicago to San Diego

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£26 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Cheapest return flight

Fastest return journey

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Tue 20/10

07:05-09:32

Nonstop4h 27m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£97

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Sat 24/10

14:21-17:01

Nonstop4h 40m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£97

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Sat 31/10

12:40-15:12

Nonstop4h 32m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£97

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Tue 27/10

14:30-20:37

1 stop8h 07m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£101

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Sat 17/10

16:30-22:43

1 stop8h 13m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£105

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Tue 27/10

05:27-11:13

1 stop7h 46m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£105

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Wed 13/1

07:40-10:19

Nonstop4h 39m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£113

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Tue 1/12

18:10-22:56

1 stop6h 46m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£120

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Thu 29/10

14:21-17:01

Nonstop4h 40m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£128

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Fri 1/1

16:05-18:43

Nonstop4h 38m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£128

Flights are sorted by cheapest return flights first.

Deals found on 28/9

Showing 1-10 of 23 resultsSorted by cheapest first

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 return 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?

Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 £193). Flying from Chicago O'Hare Intl Airport to San Diego in July is currently the most expensive (average of £279). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to San Diego as you normally would.

How much does it cost for a return flight from Chicago O'Hare Intl Airport to San Diego?

Airfare is below average for this route at the moment.

Chicago O'Hare Intl Airport to San Diego flights typically cost between £199 and £301 in October.
The cheapest return price found within the last 5 days was £194 on United Airlines (24 Oct–31 Oct).

Related info for your journey

What airport do you fly into for flights to San Diego from Chicago O'Hare Intl?
For a flight from Chicago O'Hare Intl to San Diego, you will be flying into San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 33 inbound flights from Chicago O'Hare Intl per day. 0 airlines have flights to San Diego from Chicago O'Hare Intl on a regular basis.
How long is the flight from Chicago O'Hare Intl Airport to San Diego?
For as low as £194, Alaska Airlines can have you in San Diego from Chicago O'Hare Intl Airport in 4h 38m. The distance between Chicago O'Hare Intl Airport and San Diego is about 1719 mi. All flights are typically direct.
What are the most reliable airlines from Chicago O'Hare Intl Airport to San Diego?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to San Diego on time: ITA Airways (70%), Air Canada (70%), American Airlines (67%).
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 holiday 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, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Diego (average of £193). Flying from Chicago O'Hare Intl Airport to San Diego in July is currently the most expensive (average of £279). 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

Coronado

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to California

Flights by cabin class

Other flight options

Other flights from O'Hare Intl

Popular flights

San Diego flight routes

Alternative routes for O'Hare Intl to San Diego

O'Hare Intl to San Francisco flights

O'Hare Intl to Los Angeles flights

O'Hare Intl to Las Vegas flights

Fly with Cheapflights

How does Cheapflights help users find flights from O'Hare Intl to San Diego?

Cheapflights makes it easy to find O'Hare Intl to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to San Diego?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from O'Hare Intl.

Can Cheapflights find flights from O'Hare Intl to San Diego with no change fees?

Yes! Cheapflights helps users easily find flights from O'Hare Intl to San Diego with no change fees.

Can Cheapflights notify me if prices for flights from O'Hare Intl to San Diego become cheaper?

Not ready to book yet? You can track prices for flights from O'Hare Intl to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Chicago O'Hare Intl Airport to San Diego from £95

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 30 September 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 30 September 2026.

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 stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Discover carefully curated flight deals from O'Hare Intl to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Direct flights from O'Hare Intl to San DiegoExplore direct flight options from O'Hare Intl to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Explore direct flight options from O'Hare Intl to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Last-minute flights from O'Hare Intl to San DiegoDiscover last-minute flight deals from O'Hare Intl to San Diego. Data last updated 30 September 2026 and is based on user searches.

Discover last-minute flight deals from O'Hare Intl to San Diego. Data last updated 30 September 2026 and is based on user searches.

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 30 September 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 30 September 2026.

Find flight deals from O'Hare Intl to San Diego

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Diego that are best for you.

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

How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Diego?

Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Diego?

What is the cheapest time of day to fly from ORD to SAN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to San Diego as you normally would.

How much does it cost for a return flight from Chicago O'Hare Intl Airport to San Diego?

Airfare is below average for this route at the moment.

Chicago O'Hare Intl Airport to San Diego flights typically cost between £199 and £301 in October.The cheapest return price found within the last 5 days was £194 on United Airlines (24 Oct–31 Oct).

Weekly flight availability from Chicago O'Hare Intl Airport to San Diego

The most flights from ORD to SAN are scheduled on a Monday (51 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (25 on average).

Related info for your journey

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

How long is the flight from Chicago O'Hare Intl Airport to San Diego?

What are the most reliable airlines 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?

How can I 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?

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Diego?

Travelling to a place near San Diego?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Diego by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

Search flights from O'Hare Intl to San Diego by cabin class

Find flights from O'Hare Intl to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

O'Hare Intl and San Diego flights

Browse other O'Hare Intl and San Diego flight options. Last updated on 30 September 2026.

Other flights from O'Hare Intl

Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 30 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to San Diego

Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 September 2026.

Fly with Cheapflights

How does Cheapflights help users find flights from O'Hare Intl to San Diego?

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to San Diego?

Can Cheapflights find flights from O'Hare Intl to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from O'Hare Intl to San Diego become cheaper?

100% Free

Book with Flexibility

Travel Smart

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 30 September 2026.

Best flights from O'Hare Intl to San Diego
Discover carefully curated flight deals from O'Hare Intl to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Direct flights from O'Hare Intl to San Diego
Explore direct flight options from O'Hare Intl to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Last-minute flights from O'Hare Intl to San Diego
Discover last-minute flight deals from O'Hare Intl to San Diego. Data last updated 30 September 2026 and is based on user searches.

One-way flights from O'Hare Intl to San Diego
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 30 September 2026.

Chicago O'Hare Intl Airport to San Diego flights typically cost between £199 and £301 in October.
The cheapest return price found within the last 5 days was £194 on United Airlines (24 Oct–31 Oct).