United flights to San Diego from Chicago

View RM1,167 flight on Thu, 25 Dec 2025Opens in a new window
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Prices were available within the past 7 days and start at RM1,167 for one-way flights and RM1,883 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, 21 Dec - Thu, 25 Dec
ORD
Chicago
SAN
San Diego
RM1,883 Return, found 6 days ago
RM1,883
Return
found 6 days ago
Select United flight, departing Sun, 21 Dec from Chicago to San Diego, returning Thu, 25 Dec, priced at RM1,883 found 6 days ago
United
Sun, 21 Dec - Thu, 25 Dec
ORD
Chicago
SAN
San Diego
RM1,903 Return, found 6 days ago
RM1,903
Return
found 6 days ago
Select United flight, departing Sun, 21 Dec from Chicago to San Diego, returning Thu, 25 Dec, priced at RM1,903 found 6 days ago
United
Sun, 21 Dec - Thu, 25 Dec
ORD
Chicago
SAN
San Diego
RM1,905 Return, found 6 days ago
RM1,905
Return
found 6 days ago
Select United flight, departing Sun, 21 Dec from Chicago to San Diego, returning Thu, 25 Dec, priced at RM1,905 found 6 days ago
United
Sun, 21 Dec - Thu, 25 Dec
ORD
Chicago
SAN
San Diego
RM1,924 Return, found 6 days ago
RM1,924
Return
found 6 days ago
Select United flight, departing Sun, 21 Dec from Chicago to San Diego, returning Thu, 25 Dec, priced at RM1,924 found 6 days ago
United
Sun, 21 Dec - Thu, 25 Dec
ORD
Chicago
SAN
San Diego
RM1,925 Return, found 6 days ago
RM1,925
Return
found 6 days ago
Select United flight, departing Sun, 21 Dec from Chicago to San Diego, returning Thu, 25 Dec, priced at RM1,925 found 6 days ago
United
Thu, 25 Dec - Sun, 4 Jan
ORD
Chicago
SAN
San Diego
RM1,944 Return, found 6 days ago
RM1,944
Return
found 6 days ago
Select United flight, departing Thu, 25 Dec from Chicago to San Diego, returning Sun, 4 Jan, priced at RM1,944 found 6 days ago

Find the cheapest month to fly from Chicago (ORD) to San Diego (SAN)

February is typically the cheapest month to fly

From RM 375 - RM 688 per traveller.

Frequently asked questions

How much is a United Airlines flight from O'Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from RM1,883 from ORD to SAN. Affordable one-way options from RM1,167 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from ORD to SAN with United Airlines?
United Airlines flights to San Diego are typically more affordable in the quieter months of January and November. Whether you're searching for a return or one-way ticket, you could find a better deal then.
Does United Airlines fly nonstop from O'Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN)?
United Airlines operates direct flights from O'Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN), with 25 departures each week. Simply choose the "Nonstop" and "Airline" filters during your search on Expedia to show all direct United Airlines flights to SAN.
How long does it take to fly from ORD to SAN with United Airlines?
Leave O'Hare Intl. Airport (ORD) for San Diego Intl. Airport (SAN) on a nonstop United Airlines flight, and you'll be airborne for around 4h 35m.
Which day of the week has the most United Airlines flights from O'Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN)?
United Airlines has the most flights from O'Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN) on Saturday. With up to 4 daily departures, you'll get the most choice and flexibility on this day.
What airports does United Airlines fly into in San Diego?
United Airlines flights from O'Hare Intl. Airport (ORD) to San Diego arrive at San Diego Intl. Airport (SAN). This is the main gateway here.
What type of plane does United Airlines fly from O'Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN)?
United Airlines typically uses Airbus A321neo planes for flights from O'Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN). This airline also operates the Boeing 737 MAX 8 on this route. Keep in mind that aircraft type can change due to operational requirements, so the plane you board could be different when you leave.
Can I change or cancel my United Airlines flight from O'Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN)?
Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that time. For more details about altering your reservation, head to your "Trips," select your flight and click on "Manage Booking." If you want the freedom to update your itinerary without being charged, check the "Changes included" and "No cancel fee" filters when planning your next escape.

Travel information

Origin airport
O'Hare Intl.
Destination airport
San Diego Intl.
Distance
2752 km
Average flight time
2 hours 34 mins

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