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Pasadena

$76+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$141
(Cheapflightsfares)

One-way from

$76
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$261
Provider with most accurate pricing for Chicago (CHI)-Los Angeles flight deals.
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From Illinois to Pasadena
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One-way flight from Illinois to Pasadena
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Highest demand for flights based on searches. 7% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/219:02 pmORD - LAX
1 stop11h 49mSpirit Airlines
Fri 5/2312:41 amLAX - ORD
Nonstop4h 01mSpirit Airlines
Deal found 5/1$141
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Tue 6/39:02 pmORD - LAX
1 stop14h 54mMultiple Airlines
Sat 6/74:36 pmLAX - ORD
Nonstop4h 19mMultiple Airlines
Deal found 4/30$142
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/76:10 amORD - LAX
Nonstop4h 33mFrontier
Mon 6/94:36 pmLAX - ORD
Nonstop4h 19mFrontier
Deal found 4/30$156
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/142:12 pmMDW - LAX
1 stop9h 23mFrontier
Mon 5/1910:35 pmLAX - MDW
1 stop8h 45mFrontier
Deal found 4/30$178
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:05 amORD - LAX
Nonstop4h 37mUnited Airlines
Wed 5/212:14 pmLAX - ORD
Nonstop4h 11mUnited Airlines
Deal found 4/30$199
This Mytrip deal was found by Cheapflights users on 4/30. 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.
Wed 5/288:47 pmPIA - LAX
1 stop19h 19mMultiple Airlines
Tue 6/36:52 pmLAX - PIA
1 stop23h 03mMultiple Airlines
Deal found 4/30$220
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/79:45 pmMDW - LAX
Nonstop4h 25mSouthwest
Sat 6/2110:55 pmLAX - MDW
Nonstop4h 05mSouthwest
Deal found 4/30$221
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 7/296:45 pmORD - LAX
Nonstop4h 32mAmerican Airlines
Tue 8/55:31 pmLAX - ORD
Nonstop4h 12mAmerican Airlines
Deal found 5/1$221
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/36:00 amORD - LAX
1 stop8h 58mAlaska Airlines
Tue 6/101:58 pmLAX - ORD
1 stop8h 01mAlaska Airlines
Deal found 4/30$240
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 6/149:21 amMDW - LAX
1 stop7h 34mDelta
Sat 6/2111:30 pmLAX - MDW
1 stop7h 14mDelta
Deal found 4/30$257
This CheapOair deal was found by Cheapflights users on 5/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/38:15 pmSTL - LAX
1 stop6h 15mFrontier
Sat 5/106:48 pmLAX - STL
1 stop24h 17mFrontier
Deal found 5/1$257
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/38:40 amORD - LAX
1 stop6h 18mDelta
Tue 6/312:59 amLAX - ORD
1 stop6h 52mDelta
Deal found 5/1$257

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 May 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

Tue 5/20

9:02 pm-9:56 am

1 stop14h 54m

Los Angeles

Fri 5/23

12:41 am-6:42 am

Nonstop4h 01m

$141

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Tue 6/3

9:02 pm-9:56 am

1 stop14h 54m

Los Angeles

Sat 6/7

4:36 pm-10:55 pm

Nonstop4h 19m

$142

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Fri 5/30

6:10 am-8:44 am

Nonstop4h 34m

Los Angeles

Fri 6/6

1:02 pm-11:59 pm

1 stop8h 57m

$148

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Wed 5/14

2:12 pm-9:35 pm

1 stop9h 23m

Los Angeles

Mon 5/19

10:35 pm-9:20 am

1 stop8h 45m

$178

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Wed 5/21

6:05 am-8:42 am

Nonstop4h 37m

Los Angeles

Wed 5/21

2:14 pm-8:25 pm

Nonstop4h 11m

$199

PeoriaLos Angeles

PIA - LAX

PIALAX

Greater Peoria

Wed 5/28

8:47 pm-2:06 pm

1 stop19h 19m

Los Angeles

Tue 6/3

6:52 pm-7:55 pm

1 stop23h 03m

$220

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 6/7

9:45 pm-12:10 am

Nonstop4h 25m

Los Angeles

Sat 6/21

10:55 pm-5:00 am

Nonstop4h 05m

$221

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Tue 7/29

8:50 am-11:01 am

Nonstop4h 11m

Los Angeles

Mon 8/4

12:50 am-7:02 am

Nonstop4h 12m

$221

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Tue 6/3

6:00 am-12:58 pm

1 stop8h 58m

Los Angeles

Tue 6/10

1:58 pm-11:59 pm

1 stop8h 01m

$240

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 6/14

9:21 am-2:55 pm

1 stop7h 34m

Los Angeles

Sat 6/21

11:30 pm-8:44 am

1 stop7h 14m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 60 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 $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 May 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 May 1, 2025.

The most flights from USIL to P4S are scheduled on a Thursday (115 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (41 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 May 1, 2025.
Read through reviews of airlines operating flights from Illinois to Pasadena, such as Alaska Airlines, Southwest and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,293 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $76. However, be on the lookout for offers from Frontier 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 ANA (91%), Air China (89%) and Asiana Airlines (88%).

  • What are the cheapest flights from Illinois to Pasadena?

    While on average a flight from Illinois to Pasadena is generally $774, our data shows the cheapest flight currently is $74. When looking at the most popular route, (Chicago O'Hare Intl - Los Angeles), you can expect to pay $98 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.

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$49Average$130FlexibilityNo cancel feeOn-time88%
FrontierCheapest$78Average$217FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$91Average$256FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$137Average$444FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$147Average$345FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$179Average$523FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$204Average$445FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$206Average$404FlexibilityNo cancel feeOn-time75%
DeltaCheapest$222Average$436FlexibilityNo cancel feeOn-timeN/A

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