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Pasadena

$86+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Illinois to Pasadena

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Pasadena (P4S). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$139
(Mytrip)

One-way from

$86
(CheapOair)
From Illinois to Pasadena
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One-way flight from Illinois to Pasadena
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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 January 21, 2025.

This Mytrip deal was found by Cheapflights users on 1/21. 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.
Fri 2/2111:08 pmSTL - LAX
1 stop16h 27mFrontier
Thu 2/278:09 pmLAX - STL
1 stop23h 59mFrontier
Deal found 1/21$139
This FlightHub deal was found by Cheapflights users on 1/21. 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.
Thu 3/138:44 pmMDW - LAX
1 stop14h 56mFrontier
Mon 3/176:30 amLAX - MDW
1 stop15h 47mFrontier
Deal found 1/21$157
This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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.
Tue 1/289:00 amORD - LAX
Nonstop4h 39mSpirit Airlines
Mon 2/34:18 pmLAX - ORD
1 stop11h 13mSpirit Airlines
Deal found 1/21$157
This FlightHub deal was found by Cheapflights users on 1/21. 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.
Sun 2/27:25 amORD - LAX
1 stop12h 09mMultiple Airlines
Sun 2/911:52 pmLAX - ORD
Nonstop4h 03mMultiple Airlines
Deal found 1/21$159
This Kissandfly.com deal was found by Cheapflights users on 1/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/103:56 pmORD - LAX
2 stops17h 42mFrontier
Tue 2/186:44 pmLAX - ORD
1 stop13h 07mFrontier
Deal found 1/20$177
This American Airlines deal was found by Cheapflights users on 1/19. 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 2/228:25 pmORD - LAX
Nonstop4h 49mAmerican Airlines
Tue 2/2512:25 amLAX - ORD
Nonstop3h 49mAmerican Airlines
Deal found 1/19$179
This Kissandfly.com deal was found by Cheapflights users on 1/21. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/107:15 amMDW - LAX
2 stops10h 08mMultiple Airlines
Tue 2/186:30 amLAX - MDW
1 stop15h 47mMultiple Airlines
Deal found 1/21$188
This Southwest deal was found by Cheapflights users on 1/21. 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.
Wed 2/261:15 pmMDW - LAX
Nonstop4h 40mSouthwest
Mon 3/36:05 amLAX - MDW
Nonstop4h 00mSouthwest
Deal found 1/21$208
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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.
Sat 3/17:00 pmORD - LAX
1 stop14h 31mAlaska Airlines
Tue 3/47:15 pmLAX - ORD
2 stops19h 43mAlaska Airlines
Deal found 1/19$230
This Travelocity deal was found by Cheapflights users on 1/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/157:04 pmSTL - LAX
1 stop7h 21mMultiple Airlines
Wed 2/261:58 pmLAX - STL
1 stop8h 01mMultiple Airlines
Deal found 1/19$231
This Delta deal was found by Cheapflights users on 1/21. 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 3/56:00 amMDW - LAX
1 stop10h 44mDelta
Wed 3/510:30 pmLAX - MDW
1 stop8h 21mDelta
Deal found 1/21$257
This American Airlines deal was found by Cheapflights users on 1/21. 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 3/36:10 amSTL - LAX
Nonstop4h 22mAmerican Airlines
Thu 3/65:35 pmLAX - STL
Nonstop3h 28mAmerican Airlines
Deal found 1/21$277

Find flights from Illinois to Pasadena within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Mon 2/24

11:08 pm-9:40 am

1 stop12h 32m

Los Angeles

Fri 2/28

6:30 am-9:16 am

1 stop24h 46m

$140

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Thu 4/10

7:44 pm-4:35 pm

1 stop22h 51m

Los Angeles

Sun 4/13

2:35 pm-12:15 am

1 stop7h 40m

$157

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Fri 5/16

8:03 pm-12:30 am

1 stop6h 27m

Los Angeles

Sun 5/18

8:33 am-8:33 pm

1 stop10h 00m

$158

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Sun 2/2

7:25 am-5:34 pm

1 stop12h 09m

Los Angeles

Sun 2/9

11:52 pm-5:55 am

Nonstop4h 03m

$159

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Thu 3/13

4:45 pm-7:35 pm

Nonstop4h 50m

Los Angeles

Tue 3/18

10:59 am-5:06 pm

Nonstop4h 07m

$161

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Sat 2/22

8:35 am-11:20 am

Nonstop4h 45m

Los Angeles

Mon 2/24

12:25 am-6:14 am

Nonstop3h 49m

$179

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Mon 2/10

7:15 am-3:23 pm

2 stops10h 08m

Los Angeles

Tue 2/18

6:30 am-12:17 am

1 stop15h 47m

$188

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 2/15

9:25 pm-12:10 am

Nonstop4h 45m

Los Angeles

Tue 2/18

6:05 am-12:05 pm

Nonstop4h 00m

$199

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Sat 3/1

7:00 pm-7:31 am

1 stop14h 31m

Los Angeles

Tue 3/4

7:15 pm-4:58 pm

2 stops19h 43m

$230

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Sat 2/15

7:04 pm-12:25 am

1 stop7h 21m

Los Angeles

Wed 2/26

1:58 pm-11:59 pm

1 stop8h 01m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 57 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.

Travel insights for flights from Illinois to Pasadena

Get recent, data-driven insights about flights from Illinois to Pasadena including ideal travel times, pricing trends, and more.

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 $344). 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 January 21, 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 January 21, 2025.

The most flights from USIL to P4S are scheduled on a Monday (91 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (52 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 January 21, 2025.
Read through reviews of airlines operating flights from Illinois to Pasadena, such as Southwest, Frontier 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.
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Entertainment

7.7

Overall

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

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 $86. However, be on the lookout for offers from Southwest and Spirit 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 (87%), Royal Jordanian (84%) and Air China (83%).

  • What are the cheapest flights from Illinois to Pasadena?

    While on average a flight from Illinois to Pasadena is generally $1,004, our data shows the cheapest flight currently is $89. When looking at the most popular route, (Chicago O'Hare Intl - Los Angeles), you can expect to pay $91 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 $344). 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$54Average$162FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$94Average$287FlexibilityNo cancel feeOn-time65%
FrontierCheapest$109Average$206FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$137Average$447FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$147Average$350FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$152Average$461FlexibilityNo cancel feeOn-time63%
DeltaCheapest$177Average$427FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$515FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$206Average$436FlexibilityNo cancel feeOn-time75%
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