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

For as low as £293, 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 Thursday (43 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 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: Porter Airlines (77%), Japan Airlines (75%), Qatar Airways (68%).

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 37 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.

£132+ Cheap Flights from Chicago O'Hare Intl Airport to San Diego

Cheap flight deals from O'Hare Intl to San Diego

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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 14 November 2026.

Wed 9/1207:27 -

Nonstop4h 45m

Wed 9/1213:24 -

1 stop8h 35m

Deal found 12/11£237

Tue 15/1217:29 -

1 stop18h 31m

Wed 16/1212:42 -

Nonstop4h 18m

Deal found 10/11£240

Tue 8/1217:29 -

1 stop18h 31m

Wed 9/1212:42 -

Nonstop4h 18m

Deal found 12/11£241

Tue 8/1206:40 -

1 stop10h 11m

Tue 15/1213:51 -

1 stop8h 06m

Deal found 10/11£252

Fri 11/1206:40 -

1 stop10h 11m

Tue 15/1207:20 -

2 stops12h 15m

Deal found 9/11£256

Wed 9/1217:29 -

1 stop18h 31m

Thu 10/1212:42 -

Nonstop4h 18m

Deal found 12/11£256

Wed 16/1206:00 -

1 stop9h 23m

Sat 26/1207:00 -

Nonstop4h 19m

Deal found 10/11£257

Fri 13/1119:57 -

Nonstop4h 46m

Mon 16/1109:32 -

1 stop7h 43m

Deal found 10/11£259

Tue 22/1207:00 -

Nonstop4h 46m

Sat 26/1217:37 -

Nonstop4h 22m

Deal found 10/11£262

Find flight deals from O'Hare Intl to San Diego

Round-trip from	£237
One-way from	£132
Popular in	November
Cheapest in	February
Average price	£285

Alaska Airlines
23/2-23/2
1 total stop
13h 52m total
Chicago to San Diego

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United Airlines
22/12-31/12
Nonstop
4h 42m total
Chicago to San Diego

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Highest demand for flights based on searches. 9% potential increase in price (£18 potential increase over avg. return price).

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

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Average for round-trip flights in November 2026

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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.

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Price

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ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Wed 9/12

12:40-15:12

Nonstop4h 32m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£132

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Wed 23/12

20:13-22:55

Nonstop4h 42m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£139

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Fri 20/11

20:02-22:40

Nonstop4h 38m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£147

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Mon 7/12

19:55-22:33

Nonstop4h 38m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£147

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Sun 28/2

19:55-22:41

Nonstop4h 46m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£147

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Fri 18/12

08:50-11:36

Nonstop4h 46m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£147

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Thu 31/12

07:00-09:46

Nonstop4h 46m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£150

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Sun 21/2

19:55-22:41

Nonstop4h 46m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£150

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Thu 26/11

10:00-16:33

1 stop8h 33m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£154

ChicagoSan Diego

ORD Chicago O'Hare Intl - SAN San Diego

ORDSAN

Chicago O'Hare Intl

Mon 30/11

06:23-10:55

1 stop6h 32m

San Diego

Wed 31/12

00:00-02:00

Nonstop0h 00m

£154

Flights are sorted by cheapest return flights first.

Deals found on 9/11

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

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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 £199). 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 typical for this route at the moment.

Chicago O'Hare Intl Airport to San Diego flights typically cost between £232 and £359 in December.
The cheapest return price found within the last 5 days was £237 on Alaska Airlines (9 Dec–9 Dec).

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 37 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 £293, 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: Porter Airlines (77%), Japan Airlines (75%), Qatar Airways (68%).
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 £199). 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.

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Cheap flights from Chicago O'Hare Intl Airport to San Diego from £132

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. 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 14 November 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 14 November 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 14 November 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 14 November 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 14 November 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 14 November 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 14 November 2026 and is based on user searches.

Discover last-minute flight deals from O'Hare Intl to San Diego. Data last updated 14 November 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 14 November 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 14 November 2026.

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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 typical for this route at the moment.

Chicago O'Hare Intl Airport to San Diego flights typically cost between £232 and £359 in December.The cheapest return price found within the last 5 days was £237 on Alaska Airlines (9 Dec–9 Dec).

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

The most flights from ORD to SAN are scheduled on a Thursday (43 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 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?

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O'Hare Intl and San Diego flights

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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 14 November 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 14 November 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 14 November 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 14 November 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 14 November 2026.

Chicago O'Hare Intl Airport to San Diego flights typically cost between £232 and £359 in December.
The cheapest return price found within the last 5 days was £237 on Alaska Airlines (9 Dec–9 Dec).