Cheap flights from Chicago, IL to San Diego, CA

Flights starting at $60. Choose between United Airlines, Spirit Airlines, or Frontier Airlines to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals

Kiwi-Code uncovers prices airlines don't want you to see.

Effortless booking

Use our flexible filters to tailor your search.

Travel hacking

Look out for the travel hack star icon for even cheaper fares.

Round trips

Updated:

One-way trips

Chicago ORDLas Vegas LASSan Diego SAN

Spirit Airlines

$65
Travel hack
Chicago ORDLas Vegas LASSan Diego SAN

Multiple carriers

$69

Updated:

1722 miles
Distance
Duration
Mailbox
Receive exclusive deals by email

By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.

Travelers usually depart from O Hare International, Chicago Midway International, Chicago, IL - Union Station, Chicago Rockford International, or Chicago Downtown Greyhound Station when they travel from Chicago to San Diego. Book your trip to arrive at San Diego International, San Diego, CA Bus Station, San Diego, CA - Old Town, McClellan–Palomar, or San Diego, CA - La Jolla. The distance between Chicago and San Diego is 2771 km. The most popular airlines for this route are United Airlines, Spirit Airlines, Frontier Airlines, American Airlines, and Alaska Airlines. Chicago and San Diego have 386 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights7667776
Fly direct with

American Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Alaska Airlines on Mondays, Wednesdays, Thursdays, and Saturdays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from Chicago to San Diego

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAAYesNo
Alaska AirlinesASAASYesOpens 24 days before flight
Closes 1 hours before flight

United States COVID-19 travel restrictions

Your trip summary

Most travelers from Chicago, ORD can enter San Diego, SAN.

Departure

Additional information
  • Masks are recommended in certain settings

Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.

Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

How long does it take to travel from Chicago to San Diego?
A one-way nonstop (direct) flight between Chicago and San Diego takes around 4.5 hours.
What is the flight distance between Chicago and San Diego?
The flight distance between Chicago and San Diego is 2771 km.
What airlines offer nonstop (direct) flights between Chicago and San Diego?
Several carriers operate flights between Chicago and San Diego. Airlines offering nonstop (direct) flights include American Airlines, Alaska Airlines, United Airlines.
What are the most popular routes to and from Chicago?
Travelers frequently search for route combinations, such as Chicago and Las Vegas, Guadalajara, Denver, Orlando, Phoenix, Mexico City, Paris, Barcelona, Tampa, Miami, London, Rome, Los Angeles, Madrid, Fort Myers, Athens, San Francisco, New York, Austin, Atlanta.
What are the most popular routes to and from San Diego?
Travelers frequently search for route combinations, such as San Diego and Denver, Las Vegas, Austin, Cincinnati, Philadelphia, New York, Phoenix, Charlotte, Washington, D.C., Atlanta, Raleigh, Orlando, San Antonio, Detroit, Dallas, St. Louis, Cleveland, Salt Lake City, Minneapolis, London.
Which airports are there in Chicago?
Chicago is mainly served by O Hare International. But there are other airports nearby, including Chicago Midway International, Chicago Rockford International.
What airports are near Chicago?
The main airport in Chicago is O Hare International. It is also served by Gerald R. Ford International, General Mitchell International, Dane County Regional, General Wayne A. Downing Peoria International, Fort Wayne International, Quad City International, South Bend International, Central Illinois Regional, Muskegon County, Decatur.
What airports are near San Diego?
The main airport in San Diego is San Diego International. It is also served by Los Angeles International, Tijuana International, John Wayne, Ontario International, Hollywood Burbank, Mexicali International, Palm Springs International, Long Beach, Imperial County, Yuma International.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Chicago and San Diego?
Yes, it's possible to combine different modes of transport between Chicago and San Diego thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Chicago and San Diego can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
What is Virtual Interlining and how do I use it?
Which airlines fly between Chicago and San Diego?
When's the best time to travel between Chicago and San Diego?
What flights operate between Chicago and San Diego?
How many airports are there near Chicago?
How many airports are there near San Diego?
What time do nonstop (direct) flights between Chicago and San Diego depart?
What time do nonstop (direct) flights between Chicago and San Diego arrive?
What time do flights between Chicago and San Diego depart?
What time do flights between Chicago and San Diego arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

Search flightsSearch direct flights

Explore alternative trips

Flights from Chicago

Flights to San Diego

Popular routes

Find the best connection from Chicago to San Diego

Search, compare, and book flights, trains, or buses to get there.

Search flights, trains & buses

Kiwi.com: the best free travel app for Android and iPhone

Find out more about the Kiwi.com app on kiwi.com/mobile . With our app you can search for the best plane, train and bus connections. The Kiwi.com mobile app offers cheap flights, access to hidden features, travel hacks and special offers.

Search cheap flights

Simplified planning and booking

Travel deals built for you

Kiwi.com travel hacks


We hack the system,
you fly for less