Question 1

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Accepted Answer

Flying to Chicago O'Hare Intl Airport from San Diego in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $248 when looking at flights departing in the afternoon. Try not to purchase tickets in the morning because they tend to be around $475. Of course, these prices can vary depending on the time of year and what airport you fly to.

Question 2

What is the most punctual flight time for San Diego to Chicago flights?

Accepted Answer

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Question 3

How many flights depart from San Diego to Chicago O'Hare Intl Airport on average per day?

Accepted Answer

13 flights are operational daily from San Diego to Chicago O'Hare Intl Airport as of December 2025. The most popular departure time for this route is 6:00AM, with 59% of flights per day taking off at noon.

Question 4

Can stopping save me money on San Diego to Chicago O'Hare Intl Airport flights?

Accepted Answer

You could potentially save up to 3% on your flight if you consider stops on a San Diego to Chicago O'Hare Intl Airport flight.

Question 5

What airlines fly to Chicago O'Hare Intl Airport?

Accepted Answer

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from San Diego according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 8 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

Question 6

How often are flights from San Diego to Chicago delayed?

Accepted Answer

Historically, on average around 9% of flights between San Diego and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 171 minutes.

Question 7

How many flights depart from San Diego to Chicago O'Hare Intl Airport on average per week?

Accepted Answer

As of December 2025, 93 flights take off from San Diego and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Tue, with 38% of weekly flights taking off on this day.

Question 8

What is the cheapest airline that flies from San Diego to Chicago O'Hare Intl?

Accepted Answer

United Airlines and Alaska Airlines are the most popular carriers operating from San Diego to Chicago O'Hare Intl

Question 9

Which layover airport offers the lowest fares from San Diego to Chicago O'Hare Intl Airport?

Accepted Answer

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $174.

Question 10

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

Accepted Answer

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from San Diego averaging around $242.

Question 11

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 12

Which airport is the most popular layover for flights between San Diego and Chicago O'Hare Intl Airport?

Accepted Answer

Seattle (SEA) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Question 13

How have San Diego to Chicago O'Hare Intl Airport flight prices changed over time?

Accepted Answer

As of December 2025, prices for San Diego to Chicago O'Hare Intl Airport flights are approximately 36% cheaper when compared to flights at the same time last year.

Question 14

Which layover airport has the shortest travel time from San Diego to Chicago O'Hare Intl Airport?

Accepted Answer

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 8h 05m.

Question 15

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

Accepted Answer

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $331 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from San Diego for as low as $257 on momondo.

Question 16

Which airline has the best punctuality record on San Diego to Chicago flights?

Accepted Answer

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 7% of their flights experiencing any sort of delay.

Question 17

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

Accepted Answer

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Thursday when prices can be found for as low as $391. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $578.

Question 18

What cabin class options are available on San Diego to Chicago O'Hare Intl flights?

Accepted Answer

There are 4 cabin classes available to choose from on San Diego to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 19

What is the cheapest San Diego to Chicago O'Hare Intl flight route?

Accepted Answer

Fly from San Diego to Chicago O'Hare Intl for the best San Diego - Chicago O'Hare Intl flight prices

Question 20

Which layover airport has the shortest connection time from San Diego to Chicago O'Hare Intl Airport?

Accepted Answer

Seattle (SEA) has the shortest average layover time for this route: 1h 06m.

Question 21

When did momondo last update prices for flights from San Diego Airport to Chicago O'Hare Intl Airport?

Accepted Answer

Prices for flights from San Diego Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.

Question 22

How many operators does momondo search for flights from San Diego Airport to Chicago O'Hare Intl Airport?

Accepted Answer

As of December 2025, there are 7 operators available to choose from for flights from San Diego Airport to Chicago O'Hare Intl Airport.

Question 23

How old do you have to be to fly from San Diego Airport to Chicago O'Hare Intl Airport?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to Chicago O'Hare Intl Airport.

Question 24

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

Accepted Answer

The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best Price Found	$158
Fastest flight time	3h 54m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $99	Free Cancellation	Rating 6.3 8,186 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $119	Free Cancellation	Rating 5.8 3,082 reviews	Search Frontier flights
Alaska Airlines	PriceFrom $138	Free Cancellation	Rating 8.0 11,460 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $139	Free Cancellation	Rating 7.8 2,819 reviews	Search Hawaiian Airlines flights
American Airlines	PriceFrom $167	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
United Airlines	PriceFrom $184	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights
Delta	PriceFrom $256	Free Cancellation	Rating 7.9 8,010 reviews	Search Delta flights

Cheap flights from San Diego to Chicago from $84

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