HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pasadena

$68+ Cheap flights from Illinois to Pasadena, CA

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Pasadena with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Pasadena

Keep the following information in mind while searching for Illinois to Pasadena flight deals. Data was last updated June 18, 2025.

Round-trip from

$121
(FlightHub)

One-way from

$68
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$277
From Illinois to Pasadena
Search Deals
One-way flight from Illinois to Pasadena
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Illinois to Pasadena

Cheapest flights from Illinois to Pasadena
Explore the most affordable flight options available from Illinois to Pasadena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

This FlightHub deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/123:21 pmORD - LAX
1 stop6h 47mSpirit Airlines
Tue 9/1611:58 amLAX - ORD
1 stop9h 45mSpirit Airlines
Deal found 6/17$121
This Cheapflightsfares deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/266:20 amMDW - LAX
1 stop7h 56mFrontier
Sun 6/291:06 pmLAX - MDW
1 stop8h 12mFrontier
Deal found 6/16$187
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/68:50 pmMDW - LAX
Nonstop4h 20mSouthwest
Tue 9/911:15 pmLAX - MDW
Nonstop3h 55mSouthwest
Deal found 6/16$197
This Cheapflightsfares deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/16:10 amORD - LAX
Nonstop4h 29mFrontier
Mon 8/44:24 pmLAX - ORD
Nonstop4h 22mFrontier
Deal found 6/18$197
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:40 amORD - LAX
Nonstop4h 30mAmerican Airlines
Tue 11/1812:10 amLAX - ORD
Nonstop4h 00mAmerican Airlines
Deal found 6/18$205
This Mytrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1012:36 pmMLI - LAX
1 stop9h 40mMultiple Airlines
Wed 7/167:20 pmLAX - MLI
1 stop14h 26mMultiple Airlines
Deal found 6/16$208
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/307:42 amORD - LAX
Nonstop4h 27mMultiple Airlines
Fri 7/44:46 pmLAX - ORD
Nonstop4h 19mMultiple Airlines
Deal found 6/18$221
This Hawaiian Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:00 amORD - LAX
1 stop10h 58mHawaiian Airlines
Mon 10/278:30 pmLAX - ORD
1 stop7h 52mHawaiian Airlines
Deal found 6/16$232
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:30 pmORD - LAX
1 stop8h 35mSouthwest
Tue 9/98:30 amLAX - ORD
1 stop11h 50mSouthwest
Deal found 6/17$238
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/252:27 pmSTL - LAX
1 stop10h 24mSpirit Airlines
Thu 8/2810:31 pmLAX - STL
1 stop13h 01mSpirit Airlines
Deal found 6/16$242
This Booking.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/132:27 pmSTL - LAX
1 stop23h 41mMultiple Airlines
Sun 7/2010:10 pmLAX - STL
1 stop9h 42mMultiple Airlines
Deal found 6/15$245
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/297:00 amORD - LAX
1 stop8h 00mAlaska Airlines
Thu 8/78:10 pmLAX - ORD
1 stop7h 30mAlaska Airlines
Deal found 6/15$252

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Pasadena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2025.
Use the filters below to find and compare flights from Illinois to Pasadena that are best for you.

Fly from

Illinois

Fly to

Pasadena

Route

Depart

Return

Price

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Fri 9/12

3:21 pm-8:08 pm

1 stop6h 47m

Los Angeles

Tue 9/16

11:58 am-11:43 pm

1 stop9h 45m

$121

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Fri 7/4

6:20 am-12:16 pm

1 stop7h 56m

Los Angeles

Fri 7/11

1:02 pm-11:17 pm

1 stop8h 15m

$187

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Sat 7/5

6:10 am-8:39 am

Nonstop4h 29m

Los Angeles

Tue 7/8

10:18 pm-6:03 am

1 stop5h 45m

$193

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 9/6

8:50 pm-11:10 pm

Nonstop4h 20m

Los Angeles

Tue 9/9

11:15 pm-5:10 am

Nonstop3h 55m

$197

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Fri 8/1

6:10 am-8:39 am

Nonstop4h 29m

Los Angeles

Mon 8/4

4:24 pm-10:46 pm

Nonstop4h 22m

$197

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Mon 11/17

8:40 am-11:10 am

Nonstop4h 30m

Los Angeles

Tue 11/18

12:10 am-6:10 am

Nonstop4h 00m

$205

MolineLos Angeles

MLI - LAX

MLILAX

Moline Quad-City

Thu 7/10

12:36 pm-8:16 pm

1 stop9h 40m

Los Angeles

Wed 7/16

7:20 pm-11:46 am

1 stop14h 26m

$208

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Thu 10/23

8:00 am-4:58 pm

1 stop10h 58m

Los Angeles

Mon 10/27

8:30 pm-6:22 am

1 stop7h 52m

$232

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Fri 8/29

1:30 pm-10:15 pm

2 stops10h 45m

Los Angeles

Sun 9/7

5:20 am-4:25 pm

1 stop9h 05m

$238

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Mon 8/25

2:27 pm-10:51 pm

1 stop10h 24m

Los Angeles

Thu 8/28

10:31 pm-1:32 pm

1 stop13h 01m

$242

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Illinois to Pasadena

Have a flexible travel schedule? Discover the best time to fly to Pasadena from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Pasadena

What is the cheapest month to book a flight from Illinois to Pasadena?

Currently, January is the cheapest month in which you can book a flight from Illinois to Pasadena (average of $246). Flying from Illinois to Pasadena in March is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to P4S?

Find hourly flight availability from Illinois to Pasadena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Pasadena as you normally would.

Weekly flight availability from Illinois to Pasadena

Explore weekly flight availability from Illinois to Pasadena. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 18, 2025.

The most flights from USIL to P4S are scheduled on a Monday (129 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (76 on average).

Rainfall in Pasadena by month

Plan your trip to Pasadena by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Pasadena 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 Pasadena when rainfall is around 0.0 in.

Temperature in Pasadena by month

Plan your trip to Pasadena by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Pasadena, 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).

Reviews of airlines servicing Pasadena

Get insights into the airlines that provide service to Pasadena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pasadena. Reviews last updated June 18, 2025.
Read through reviews of airlines operating flights from Illinois to Pasadena, such as Breeze Airways, Alaska Airlines and Southwest. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Crew

8.8

Comfort

8.2

Boarding

8.4

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
182 reviews
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Crew

8.8

Comfort

8.2

Boarding

8.4

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Alaska Airlines
8.0
Very good
10,000 reviews
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Crew

8.8

Comfort

8.2

Boarding

8.4

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,280 reviews
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Crew

8.8

Comfort

8.2

Boarding

8.4

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,964 reviews
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Crew

8.8

Comfort

8.2

Boarding

8.4

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Hawaiian Airlines
7.8
Good
2,507 reviews
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Crew

8.8

Comfort

8.2

Boarding

8.4

Overall

8.1

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

Find useful and relevant information for your journey from Illinois to Pasadena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to Pasadena one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $68. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Illinois to Pasadena for a low price.

  • What are the most popular routes from Illinois to Pasadena?

    The most popular route from Illinois to Pasadena is Chicago O'Hare Intl - Los Angeles. You may also consider Chicago Midway - Los Angeles or Lambert-St Louis - Los Angeles.

  • What are the most reliable airlines from Illinois to Pasadena?

    The top 3 most reliable airlines when flying from Illinois to Pasadena are Austrian Airlines (98%), Asiana Airlines (98%) and Brussels Airlines (97%).

  • What are the cheapest flights from Illinois to Pasadena?

    While on average a flight from Illinois to Pasadena is generally $950, our data shows the cheapest flight currently is $59. When looking at the most popular route, (Chicago O'Hare Intl - Los Angeles), you can expect to pay $113 for that flight.

  • Can I find deals for flights from Illinois to Pasadena that include hotel bookings?

    Yes. In addition to deals on Illinois to Pasadena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Pasadena?

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

  • Can I find deals for business class flights from Illinois to Pasadena?

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

  • What is the cheapest month to book a flight from Illinois to Pasadena?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Pasadena (average of $246). Flying from Illinois to Pasadena in March is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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 Illinois to Pasadena

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Los Angeles flights
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Los Angeles to San Francisco flights
Newark to San Francisco flights
San Jose to Los Angeles flights
San Francisco to Los Angeles flights
O'Hare Intl to Los Angeles flights
Seattle to Las Vegas flights
Hobby to Las Vegas flights
Newark to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Los Angeles to San Jose flights
LaGuardia to Los Angeles flights
Los Angeles to Las Vegas flights
Atlanta to Las Vegas flights
Seattle to Santa Ana flights
Reagan-National to Los Angeles flights
O'Hare Intl to Las Vegas flights
Dulles Intl to Los Angeles flights
San Francisco to Las Vegas flights
Santa Ana to Las Vegas flights
LaGuardia to Las Vegas flights
Denver to Las Vegas flights
Boston to Los Angeles flights
Baltimore to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Boston to Las Vegas flights
Los Angeles to Oakland flights
Burbank to Las Vegas flights
LaGuardia to San Francisco flights
Seattle to San Francisco flights
John F Kennedy Intl to Ontario flights
Portland to Los Angeles flights
Seattle to San Diego flights
Dulles Intl to Las Vegas flights
Hobby to Los Angeles flights
Oakland to Las Vegas flights
Reagan-National to Las Vegas flights
Oakland to Santa Ana flights
Dulles Intl to San Francisco flights
Miami to Los Angeles flights
Oakland to Los Angeles flights
O'Hare Intl to San Francisco flights
Newark to San Diego flights
John F Kennedy Intl to San Diego flights
Reagan-National to San Francisco flights

Top 9 airlines flying from Illinois to Pasadena

Discover the top 9 airlines that operate flights from Illinois to Pasadena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$49Average$158FlexibilityNo cancel feeOn-time88%
FrontierCheapest$78Average$213FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$91Average$257FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$137Average$437FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$147Average$345FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$179Average$514FlexibilityNo cancel feeOn-time71%
DeltaCheapest$192Average$388FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$206Average$393FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$208Average$445FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.