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Journey information
Overview: Chicago, IL to San Diego, CA flight
USAUSA
Flights from Chicago, IL to San Diego, CA depart on average 25 times per day, taking around 4h 55m. Cheap flight tickets for this journey start at $83 (€67) if you book in advance.
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance 1729 miles (2784 km) |
Average flight duration 4h 55m |
Cheapest ticket price $83 (€67) |
Flights per day 25 |
Direct flights 8 |
Fastest flight 4h 21m |
Cheapest month to travel April |
First flight 05:00 |
Last flight 23:50 |
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
The cheapest and fastest flights from Chicago, IL to San Diego, CA
Showing times and prices for Jul 20
Cheapest price
$537
Average price
$901
Fastest journey
4 h 14 m
Average duration
4 h 15 m
Flights per day
44
Distance
2784 km
Cheap tickets
The best way to find a cheap flight ticket from Chicago, IL to San Diego, CA is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Chicago, IL to San Diego, CA will cost around $901 if you buy it on the day, but the cheapest tickets can be found for only $537.
Fast flights
Of the 44 flights that leave Chicago, IL for San Diego, CA onSun, Jul 20, 10 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Sun, Jul 20 the direct flights cover the 2784 km distance in an average of 4 h 15 m but if you time it right, some flights will get you there in just 4 h 14 m .
On Sun, Jul 20 the longest flights will take 4 h 16 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
NK1270 · NK115203:18PM9h48
O'Hare International Airport11:06PMSan Diego International Airport
$5371One-way
1 transfer
AA186109:00PM4h27
O'Hare International Airport11:27PMSan Diego International Airport
$5471One-way
0 transfers
AA154305:00PM4h16
O'Hare International Airport07:16PMSan Diego International Airport
$5471One-way
0 transfers
AA213110:05AM4h17
O'Hare International Airport12:22PMSan Diego International Airport
$5471One-way
0 transfers
AA234307:14AM4h14
O'Hare International Airport09:28AMSan Diego International Airport
$5471One-way
0 transfers
AA234307:14AM4h14
O'Hare International Airport09:28AMSan Diego International Airport
$5471One-way
0 transfers
AS423207:14AM4h14
O'Hare International Airport09:28AMSan Diego International Airport
$9881One-way
0 transfers
AA230911:45AM4h15
O'Hare International Airport02:00PMSan Diego International Airport
$5471One-way
0 transfers
AS649211:45AM4h15
O'Hare International Airport02:00PMSan Diego International Airport
$9881One-way
0 transfers
AA154305:00PM4h16
O'Hare International Airport07:16PMSan Diego International Airport
$5471One-way
0 transfers
Travel Information
Compare train, bus, and flight for Chicago, IL to San Diego, CA
Omio recommends booking the train as it is the most popular option from Chicago, IL to San Diego, CA among Omio's users. If you are prioritising price take the bus with prices starting from €97. For those with little time consider booking a flight which can get you there in 4h 55m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.8 - 2.5kg. The ticket price range depends on the travel mode: a bus costs an average of €97, and a train costs an average of €164.
Distance: 1729 miles (2784 km)
Compare flight with
| Flight | Most popular Train | Bus |
|---|---|---|
€234 Average price | €360 Average price | €229 Average price Cheapest |
7h 55m Average total duration Fastest 4h 55m Onboard + 3h 0m Additional time* | 50h 8m Average total duration 49h 38m Onboard + 30m Additional time* | 45h 8m Average total duration 44h 38m Onboard + 30m Additional time* |
8.4 - 16.7kg CO2 emissions | 0.8 - 2.5kg CO2 emissions Lowest | 2.8 - 7.0kg CO2 emissions |
Most popular airline |  Most popular train company |  Most popular bus company |
Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Live departures
Chicago, IL to San Diego, CA flight times
Showing flights for tomorrow, Sunday, July 20
Last updated at 12:40 PM
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
 AS942 · AS1146 | 11:00 AM O'Hare International Airport | 15h49 | 2:49 AM San Diego International Airport | 1 transfer | |
| AS942 · AS1108 | 11:00 AM O'Hare International Airport | 8h49 | 7:49 PM San Diego International Airport | 1 transfer | |
| AS942 · AS1198 | 11:00 AM O'Hare International Airport | 12h55 | 11:55 PM San Diego International Airport | 1 transfer | |
| AS942 · AS1096 | 11:00 AM O'Hare International Airport | 10h38 | 9:38 PM San Diego International Airport | 1 transfer | |
| AS413 · AS1122 | 12:00 PM O'Hare International Airport | 15h03 | 3:03 AM San Diego International Airport | 1 transfer | |
| AS413 · AS1296 | 12:00 PM O'Hare International Airport | 8h15 | 8:15 PM San Diego International Airport | 1 transfer | |
| AS413 · AS1204 | 12:00 PM O'Hare International Airport | 12h22 | 12:22 AM San Diego International Airport | 1 transfer | |
| AA2343 | 12:14 PM O'Hare International Airport | 4h14 | 4:28 PM San Diego International Airport | 0 transfersDirect | |
| AS4232 | 12:14 PM O'Hare International Airport | 4h14 | 4:28 PM San Diego International Airport | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Chicago, IL to San Diego, CA by train, bus, or flight
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Airlines: American Airlines, United and Spirit Airlines flights from Chicago, IL to San Diego, CA
You can travel by flight from Chicago, IL to San Diego, CA with American Airlines, United and Spirit Airlines for as low as $116 (€94). When you search for schedules and tickets, Omio will show you the best trip.
FAQs: Chicago, IL to San Diego, CA Flight
FAQs: Take a flight from Chicago, IL to San Diego, CA hassle-free. Whether you want fast, cheap or something entirely different, our travel experts have collected everything you need to know so you can find the best option from Chicago, IL to San Diego, CA.
Cheap plane tickets from Chicago, IL to San Diego, CA can start from as little as $56 (€45) when you book in advance. The average flight ticket price for Chicago, IL to San Diego, CA is $256 (€207); however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
On average the Chicago, IL to San Diego, CA flight travel time is 4 h 14 min for the 1726 mile (2784 km) long route, but the duration can vary if you travel on weekends and holidays.
The earliest flight from Chicago, IL to San Diego, CA leaves at 5: 00AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Chicago, IL to San Diego, CA leaves at 11: 53PM.
Yes, it is possible to travel from Chicago, IL to San Diego, CA without having to change trains with United. There are 8 direct flights from Chicago, IL to San Diego, CA each day. There may be fewer direct services available on weekends or holidays.
For the best Chicago, IL to San Diego, CA flight to buy, you can travel safely and comfortably with American Airlines, United or Spirit Airlines. However, it's always good to check all possible airlines with services to San Diego, CA from Chicago, IL to compare what amenities they may offer.
The cheapest month for a flight from Chicago, IL to San Diego, CA is September.
It's helpful to compare your options as there are 3 ways to travel between Chicago, IL and San Diego, CA including taking a bus, train or flight.
Since neither Chicago, IL nor San Diego, CA are in the Schengen Area, passport requirements depend on the specific immigration rules of USA and USA. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 2 h between Chicago, IL and San Diego, CA all year round.
The best events to attend in San Diego, CA include:
- Comic-Con International, the largest comic book and popular arts convention in the world
- San Diego County Fair, a month-long fair featuring rides, games, and local food
- San Diego Beer Week, a celebration of craft beer with tastings and events across the county
- La Jolla Music Festival, an annual event showcasing classical music performances in a picturesque coastal setting.
The best holidays to experience in San Diego, CA include:
- Memorial Day, ideal weather for beach activities and outdoor events
- Independence Day, spectacular fireworks and patriotic celebrations
- Labor Day, perfect for enjoying the last days of summer at the beach
- Thanksgiving, a time for family gatherings with pleasant fall weather.
The best seasons to visit San Diego, CA are Spring or Fall. The best weather to explore San Diego, CA is during April-June or September-November.
For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e. G. 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs).
Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you.
Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you.
Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
More options for your journey from Chicago, IL to San Diego, CA
Here are some other resources that might have the information you need
Most popular flights to and from San Diego and Chicago
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