What are the cheapest airlines to fly from Chicago to San Clemente one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $54. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Chicago to San Clemente for a low price.

Weekly flight availability from Chicago to San Clemente

The most flights from CHI to CL3 are scheduled on a Wednesday (137 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (105 on average).

In terms of precipitation, rainfall in San Clemente ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit San Clemente when rainfall is around 0.0 in.

If weather is an important factor for your trip to San Clemente, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

What are the cheapest flights from Chicago to San Clemente?

The cheapest flight price from Chicago to San Clemente is $106. On average you can expect to pay $988. The most popular route, (Chicago O'Hare Intl - Los Angeles), can usually be booked for $127.

What are the most reliable airlines from Chicago to San Clemente?

Before booking your flight to San Clemente from Chicago, check out the most reliable airlines to get you to your destination on time: Air New Zealand (76%), Air China (74%), Virgin Australia( 72%).

What are the most popular airlines that fly from Chicago to San Clemente?

American Airlines, United Airlines and Frontier are the most popular airlines when flying from Chicago to San Clemente.

Can I find deals for flights from Chicago to San Clemente that include hotel bookings?

Yes. In addition to deals on Chicago to San Clemente flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Chicago to San Clemente?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to San Clemente.

Can I find deals for business class flights from Chicago to San Clemente?

Yes. Cheapflights offers flight deals from Chicago to San Clemente by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheapflights Tip: The best prices from Chicago to San Clemente are usually found in October or September, booked 78 days in advance, depart on a Thursday or Friday and return on a Wednesday

Find flight deals from Chicago to San Clemente

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	June
Cheapest in	October
Average price	$262

Provider with most accurate pricing for Chicago (CHI)-Los Angeles flight deals.

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Highest demand for flights based on searches. 8% potential increase in price ($32 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Everything you need to know about your flight from Chicago to San Clemente

Prices

Airlines

What is the cheapest time of day to fly from CHI to CL3?

It’s typically best to fly out from Chicago to San Clemente in the morning. Doing so could potentially save you 16% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Chicago to San Clemente?

Travelers seeking maximum savings on their Chicago to San Clemente flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Clemente

Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Chicago to San Clemente by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,219 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Southwest

7.9

Good

4,219 reviews

Southwest

7.9

Good

4,219 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Delta

7.8

Good

8,633 reviews

Southwest

7.9

Good

4,219 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

United Airlines

7.4

Good

10,308 reviews

Southwest

7.9

Good

4,219 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

American Airlines

7.0

Good

12,134 reviews

Southwest

7.9

Good

4,219 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Frontier

5.6

Fair

2,551 reviews

Southwest

7.9

Good

4,219 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Related info for your journey

What are the cheapest airlines to fly from Chicago to San Clemente one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $54. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Chicago to San Clemente for a low price.
What are the most reliable airlines from Chicago to San Clemente?
Before booking your flight to San Clemente from Chicago, check out the most reliable airlines to get you to your destination on time: Air New Zealand (76%), Air China (74%), Virgin Australia( 72%).
What are the cheapest flights from Chicago to San Clemente?
The cheapest flight price from Chicago to San Clemente is $106. On average you can expect to pay $988. The most popular route, (Chicago O'Hare Intl - Los Angeles), can usually be booked for $127.
Can I find deals for flights from Chicago to San Clemente that include hotel bookings?
Yes. In addition to deals on Chicago to San Clemente flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Chicago to San Clemente?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to San Clemente.
Can I find deals for business class flights from Chicago to San Clemente?
Yes. Cheapflights offers flight deals from Chicago to San Clemente by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 8 airlines flying from Chicago to San Clemente

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$100	Average$286	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$118	Average$335	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$153	Average$267	FlexibilityNo cancel fee	On-time85%
Alaska Airlines	Cheapest$157	Average$394	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$161	Average$424	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$166	Average$376	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$187	Average$447	FlexibilityNo cancel fee	On-time63%
JetBlue	Cheapest$194	Average$328	FlexibilityNo cancel fee	On-time62%

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Cheap flights from Chicago (CHI) to San Clemente, CA

Find cheap flights from Chicago to San Clemente with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Chicago to San Clemente

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from CHI to CL3?

It’s typically best to fly out from Chicago to San Clemente in the morning. Doing so could potentially save you 16% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Chicago to San Clemente?

Travelers seeking maximum savings on their Chicago to San Clemente flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to San Clemente

The most flights from CHI to CL3 are scheduled on a Wednesday (137 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (105 on average).

Reviews of airlines servicing San Clemente

Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Chicago to San Clemente by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the cheapest airlines to fly from Chicago to San Clemente one-way?

What are the most reliable airlines from Chicago to San Clemente?

What are the cheapest flights from Chicago to San Clemente?

Can I find deals for flights from Chicago to San Clemente that include hotel bookings?

How can I find direct flights from Chicago to San Clemente?

Can I find deals for business class flights from Chicago to San Clemente?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to San Clemente

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Clemente by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Chicago to San Clemente by cabin class

Find flights from Chicago to San Clemente, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Chicago and San Clemente flights

Browse other Chicago and San Clemente flight options. Last updated on October 8, 2026.

Other flights from Chicago

Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on October 8, 2026.

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Top 8 airlines flying from Chicago to San Clemente

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