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Pasadena

$75+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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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 July 1, 2025.

Round-trip from

$131
(Kiwi.com)

One-way from

$75
(Priceline)

Popular in

December

Cheapest in

September

Average price

$282
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).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Thu 7/173:18 pmORD - LAX
1 stop6h 58mSpirit Airlines
Tue 7/227:20 pmLAX - ORD
1 stop8h 43mSpirit Airlines
Deal found 6/30$131
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Thu 8/147:09 pmORD - LAX
Nonstop4h 27mMultiple Airlines
Thu 8/217:50 pmLAX - ORD
1 stop23h 00mMultiple Airlines
Deal found 6/30$133
This Priceline deal was found by Cheapflights users on 6/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:20 amMDW - LAX
1 stop8h 01mFrontier
Sun 9/282:05 pmLAX - MDW
1 stop5h 53mFrontier
Deal found 6/30$135
This Priceline deal was found by Cheapflights users on 6/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:45 pmORD - LAX
1 stop13h 57mFrontier
Sun 9/282:05 pmLAX - ORD
1 stop6h 29mFrontier
Deal found 6/30$153
This Southwest deal was found by Cheapflights users on 7/1. 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 8/165:25 pmMDW - LAX
Nonstop4h 20mSouthwest
Sat 8/236:05 amLAX - MDW
Nonstop3h 55mSouthwest
Deal found 7/1$197
This FlightHub deal was found by Cheapflights users on 6/29. 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.
Mon 7/1410:47 amSTL - LAX
1 stop23h 58mSpirit Airlines
Sat 7/1910:10 pmLAX - STL
1 stop9h 42mSpirit Airlines
Deal found 6/29$258
This Justfly.com deal was found by Cheapflights users on 6/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/307:29 pmSTL - LAX
1 stop6h 58mFrontier
Sun 8/33:48 pmLAX - STL
1 stop19h 54mFrontier
Deal found 6/30$259
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Mon 7/2812:45 pmPIA - LAX
1 stop12h 05mMultiple Airlines
Thu 8/77:20 pmLAX - PIA
1 stop14h 35mMultiple Airlines
Deal found 6/30$262
This CheapOair deal was found by Cheapflights users on 6/30. 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.
Fri 7/187:29 pmSTL - LAX
1 stop6h 58mMultiple Airlines
Sun 7/2010:10 pmLAX - STL
1 stop9h 42mMultiple Airlines
Deal found 6/30$265
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Fri 8/87:00 amPIA - LAX
1 stop6h 44mAmerican Airlines
Sun 8/1711:51 amLAX - PIA
1 stop10h 08mAmerican Airlines
Deal found 6/30$289
This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/235:26 pmMLI - LAX
1 stop9h 10mDelta
Sat 9/612:15 pmLAX - MLI
1 stop8h 33mDelta
Deal found 6/30$289
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Sat 8/166:35 pmMLI - LAX
1 stop6h 17mAmerican Airlines
Fri 8/2212:45 amLAX - MLI
1 stop7h 27mAmerican Airlines
Deal found 7/1$291

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 July 1, 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

Thu 7/17

3:18 pm-8:16 pm

1 stop6h 58m

Los Angeles

Tue 7/22

7:20 pm-6:03 am

1 stop8h 43m

$131

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Thu 8/14

7:05 am-9:28 am

Nonstop4h 23m

Los Angeles

Thu 8/21

7:50 pm-8:50 pm

1 stop23h 00m

$133

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Thu 9/25

6:20 am-12:21 pm

1 stop8h 01m

Los Angeles

Sun 9/28

2:05 pm-9:58 pm

1 stop5h 53m

$135

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Fri 7/25

5:40 am-9:57 am

1 stop6h 17m

Los Angeles

Mon 7/28

2:27 pm-10:55 pm

1 stop6h 28m

$141

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 8/16

5:25 pm-7:45 pm

Nonstop4h 20m

Los Angeles

Sat 8/23

6:05 am-12:00 pm

Nonstop3h 55m

$197

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Mon 7/14

10:47 am-8:45 am

1 stop23h 58m

Los Angeles

Sat 7/19

10:10 pm-9:52 am

1 stop9h 42m

$258

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Wed 7/30

7:29 pm-12:27 am

1 stop6h 58m

Los Angeles

Sun 8/3

3:48 pm-1:42 pm

1 stop19h 54m

$259

PeoriaLos Angeles

PIA - LAX

PIALAX

Greater Peoria

Mon 7/28

12:45 pm-10:50 pm

1 stop12h 05m

Los Angeles

Thu 8/7

7:20 pm-11:55 am

1 stop14h 35m

$262

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Fri 7/18

7:29 pm-12:27 am

1 stop6h 58m

Los Angeles

Sun 7/20

10:10 pm-9:52 am

1 stop9h 42m

$265

MolineLos Angeles

MLI - LAX

MLILAX

Moline Quad-City

Wed 7/23

5:26 pm-12:36 am

1 stop9h 10m

Los Angeles

Sat 9/6

12:15 pm-10:48 pm

1 stop8h 33m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 49 results
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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 $326). 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 July 1, 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 July 1, 2025.

The most flights from USIL to P4S are scheduled on a Tuesday (119 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

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 July 1, 2025.
Read reviews from past customers who have flown Breeze Airways, Alaska Airlines, and Southwest from Illinois to Pasadena. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Comfort

8.2

Crew

8.8

Overall

8.1

Boarding

8.4

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

Comfort

8.2

Crew

8.8

Overall

8.1

Boarding

8.4

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

Comfort

8.2

Crew

8.8

Overall

8.1

Boarding

8.4

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
4,273 reviews
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Comfort

8.2

Crew

8.8

Overall

8.1

Boarding

8.4

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
7,973 reviews
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Comfort

8.2

Crew

8.8

Overall

8.1

Boarding

8.4

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
2,539 reviews
Breeze Airways
8.1
Very good
182 reviews

Food

6.8

Comfort

8.2

Crew

8.8

Overall

8.1

Boarding

8.4

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 Frontier, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from Spirit Airlines and Southwest, 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 $1,742, our data shows the cheapest flight currently is $78. 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 $326). 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.

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Alternative routes for Illinois to Pasadena

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$218FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$88Average$232FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$95Average$125FlexibilityNo cancel feeOn-time88%
Sun Country AirCheapest$147Average$365FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$179Average$498FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$185Average$464FlexibilityNo cancel feeOn-time69%
DeltaCheapest$192Average$385FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$208Average$432FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$209Average$443FlexibilityNo cancel feeOn-time63%

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