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$157+ Cheap flights from Illinois to Pasco (PSC)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PSC
Aug 27 — Sep 31
Wed 8/27
Wed 9/3
1 adult, Economy
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Cheap flight deals from Illinois to Pasco

Keep the following information in mind while searching for Illinois to Pasco flight deals. Data was last updated August 22, 2025.

Round-trip from

$274
(Delta)

One-way from

$157
(Delta)

Popular in

January

Cheapest in

October

Average price

$394
From Illinois to Pasco Tri Cities
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One-way flight from Illinois to Pasco Tri Cities
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Highest demand for flights based on searches. 19% potential increase in price ($123 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Illinois to Pasco

Cheapest flights from Illinois to Pasco
Explore the most affordable flight options available from Illinois to Pasco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2025.

This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2710:40 amSTL - PSC
2 stops12h 15mDelta
Tue 9/305:47 pmPSC - STL
2 stops17h 46mDelta
Deal found 8/18$274
This Delta deal was found by Cheapflights users on 8/21. 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.
Tue 10/146:05 pmORD - PSC
1 stop6h 50mDelta
Tue 10/216:10 amPSC - ORD
1 stop9h 00mDelta
Deal found 8/21$279
This Mytrip deal was found by Cheapflights users on 8/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:09 pmORD - PSC
2 stops20h 26mMultiple Airlines
Mon 9/89:42 amPSC - ORD
1 stop9h 50mMultiple Airlines
Deal found 8/20$328
This Hawaiian Airlines deal was found by Cheapflights users on 8/18. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:00 amSTL - PSC
1 stop11h 29mHawaiian Airlines
Tue 9/308:45 amPSC - STL
1 stop6h 49mHawaiian Airlines
Deal found 8/18$354
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:20 amORD - PSC
2 stops14h 59mAlaska Airlines
Tue 10/218:49 amPSC - ORD
2 stops13h 10mAlaska Airlines
Deal found 8/21$361
This American Airlines deal was found by Cheapflights users on 8/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:34 amORD - PSC
1 stop8h 09mAmerican Airlines
Mon 9/82:55 pmPSC - ORD
1 stop7h 32mAmerican Airlines
Deal found 8/20$400
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:02 pmORD - PSC
1 stop8h 22mAlaska Airlines
Mon 12/15:51 pmPSC - ORD
1 stop26h 39mAlaska Airlines
Deal found 8/20$404
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:00 amSTL - PSC
1 stop15h 53mAlaska Airlines
Sun 1/119:00 amPSC - STL
1 stop26h 52mAlaska Airlines
Deal found 8/21$453
This American Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 9/48:00 amSTL - PSC
1 stop7h 43mAmerican Airlines
Sun 9/72:55 pmPSC - STL
1 stop7h 04mAmerican Airlines
Deal found 8/21$458
This Delta deal was found by Cheapflights users on 8/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/53:30 pmSTL - PSC
1 stop6h 15mDelta
Tue 9/96:20 amPSC - STL
2 stops12h 58mDelta
Deal found 8/20$463
This Delta deal was found by Cheapflights users on 8/21. 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 12/177:30 amSTL - PSC
2 stops10h 48mDelta
Sun 1/115:00 pmPSC - STL
1 stop5h 37mDelta
Deal found 8/21$513
This Hawaiian Airlines deal was found by Cheapflights users on 8/20. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:20 amORD - PSC
1 stop8h 08mHawaiian Airlines
Mon 9/17:55 pmPSC - ORD
1 stop9h 08mHawaiian Airlines
Deal found 8/20$522

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Pasco 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 August 22, 2025.
Use the filters below to find and compare flights from Illinois to Pasco that are best for you.

Fly from

Illinois

Fly to

Pasco

Route

Depart

Return

Price

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

10:40 am-8:55 pm

2 stops12h 15m

Pasco Tri Cities

Tue 9/30

5:47 pm-2:44 pm

2 stops18h 57m

$274

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Tue 10/14

7:36 pm-11:31 pm

1 stop5h 55m

Pasco Tri Cities

Tue 10/21

6:10 am-5:10 pm

1 stop9h 00m

$279

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 9/4

7:09 pm-1:35 pm

2 stops20h 26m

Pasco Tri Cities

Mon 9/8

9:42 am-9:32 pm

1 stop9h 50m

$328

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

3:35 pm-12:08 am

1 stop10h 33m

Pasco Tri Cities

Tue 9/30

8:45 am-5:34 pm

1 stop6h 49m

$354

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

6:00 am-9:15 pm

1 stop17h 15m

Pasco Tri Cities

Tue 9/30

4:06 pm-5:34 pm

1 stop23h 28m

$354

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Tue 10/14

8:20 am-9:19 pm

2 stops14h 59m

Pasco Tri Cities

Tue 10/21

8:49 am-11:59 pm

2 stops13h 10m

$361

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 9/4

7:34 am-1:43 pm

1 stop8h 09m

Pasco Tri Cities

Mon 9/8

2:55 pm-12:27 am

1 stop7h 32m

$400

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Mon 11/24

6:02 pm-12:24 am

1 stop8h 22m

Pasco Tri Cities

Mon 12/1

5:51 pm-10:30 pm

1 stop26h 39m

$404

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Wed 12/17

7:00 am-8:53 pm

1 stop15h 53m

Pasco Tri Cities

Sun 1/11

9:00 am-1:52 pm

1 stop26h 52m

$453

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Thu 9/4

8:00 am-1:43 pm

1 stop7h 43m

Pasco Tri Cities

Sun 9/7

2:55 pm-11:59 pm

1 stop7h 04m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 30 results
1
2
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Best time to book a flight from Illinois to Pasco

Have a flexible travel schedule? Discover the best time to fly to Pasco 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 Pasco

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Pasco (average of $349). Flying from Illinois to Pasco in June is currently the most expensive (average of $438). 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 PSC?

Find hourly flight availability from Illinois to Pasco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 22, 2025.

When flying from Illinois to Pasco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

  • What airport do you fly into for flights to Pasco from Illinois?

    Pasco Tri Cities (PSC) is the airport you will fly into if you book a flight from Illinois to Pasco. It is only a 1.9 mi journey from Tri Cities (PSC) to Pasco’s city center.

  • How long is the flight from Illinois to Pasco?

    A quick flight from Illinois to Pasco can take about 10h 33m. Delta provides one of the quickest options available for as low as $354. Airlines will cover a distance of 1542 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $157 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from $188 and $188, respectively.

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

    The most popular flight routes from Illinois to Pasco are Chicago O'Hare Intl - Pasco Tri Cities, Chicago Midway - Pasco Tri Cities and Lambert-St Louis - Pasco Tri Cities.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Pasco 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 Pasco?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Pasco (average of $349). Flying from Illinois to Pasco in June is currently the most expensive (average of $438). 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

Traveling to a place near Pasco?

Book flights to Pasco if you plan to visit one of these locations
Kennewick
Richland

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Alternative routes for Illinois to Pasco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Illinois to Pasco

Discover the top 2 airlines that operate flights from Illinois to Pasco. 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 August 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$205Average$436FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$345Average$450FlexibilityNo cancel feeOn-time75%

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