HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pasco

$162+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PSC
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Pasco 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 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 December 15, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/15. 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.
Thu 12/187:00 amSTL - PSC
1 stop8h 12mAlaska Airlines
Sun 1/111:23 pmPSC - STL
1 stop22h 31mAlaska Airlines
Deal found 12/15$654
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Thu 12/189:00 amSTL - PSC
1 stop6h 14mUnited Airlines
Sun 1/1112:45 pmPSC - STL
1 stop6h 13mUnited Airlines
Deal found 12/14$700
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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 12/236:08 pmORD - PSC
1 stop8h 09mAlaska Airlines
Thu 1/16:02 pmPSC - ORD
1 stop10h 27mAlaska Airlines
Deal found 12/14$712
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:30 amPIA - PSC
1 stop22h 54mAllegiant Air
Sat 1/35:29 pmPSC - PIA
1 stop15h 31mAllegiant Air
Deal found 12/15$717
This American Airlines deal was found by Cheapflights users on 12/14. 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 12/295:00 amORD - PSC
1 stop10h 49mAmerican Airlines
Fri 1/26:00 amPSC - ORD
1 stop9h 38mAmerican Airlines
Deal found 12/14$738
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:40 pmORD - PSC
1 stop8h 02mAmerican Airlines
Tue 12/307:04 amPSC - ORD
1 stop8h 34mAmerican Airlines
Deal found 12/15$746
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Tue 12/238:05 pmORD - PSC
2 stops26h 58mUnited Airlines
Thu 1/15:00 amPSC - ORD
1 stop6h 19mUnited Airlines
Deal found 12/14$765
This Alaska Airlines deal was found by Cheapflights users on 12/15. 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 12/236:08 pmORD - PSC
1 stop8h 09mAlaska Airlines
Tue 12/301:52 pmPSC - ORD
2 stops13h 10mAlaska Airlines
Deal found 12/15$825
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Tue 12/309:00 amSTL - PSC
1 stop14h 03mUnited Airlines
Sat 1/35:00 amPSC - STL
1 stop6h 20mUnited Airlines
Deal found 12/14$831
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Tue 12/301:55 pmORD - PSC
1 stop9h 08mUnited Airlines
Sat 1/35:00 amPSC - ORD
2 stops23h 21mUnited Airlines
Deal found 12/14$835
This Delta deal was found by Cheapflights users on 12/14. 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.
Mon 12/296:00 amORD - PSC
1 stop6h 38mDelta
Fri 1/25:00 amPSC - ORD
2 stops10h 47mDelta
Deal found 12/14$838
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:35 amPIA - PSC
1 stop6h 39mUnited Airlines
Sat 1/35:00 amPSC - PIA
2 stops31h 08mUnited Airlines
Deal found 12/15$892

Find flight deals from Illinois to Pasco

Keep the following information in mind while searching for Illinois to Pasco flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$290
(Delta)

One-way from

$162
(Delta)

Popular in

March

Cheapest in

August

Average price

$508
Provider with most accurate pricing for Chicago (CHI)-Pasco Tri Cities flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Pasco Tri Cities flights.
Search Deals
From Illinois to Pasco Tri Cities
Search Deals
One-way flight from Illinois to Pasco Tri Cities
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($167 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 15, 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

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 1/8

7:20 am-4:23 pm

2 stops11h 03m

Pasco Tri Cities

Sun 1/11

1:00 pm-11:53 pm

1 stop8h 53m

$290

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Fri 1/30

1:50 pm-11:09 pm

2 stops11h 19m

Pasco Tri Cities

Sun 2/1

1:00 pm-11:53 pm

1 stop8h 53m

$290

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Fri 1/30

8:00 am-8:57 pm

1 stop14h 57m

Pasco Tri Cities

Sun 2/1

8:27 am-11:50 pm

1 stop13h 23m

$304

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Sat 2/14

7:00 am-8:55 pm

1 stop15h 55m

Pasco Tri Cities

Wed 2/18

8:25 am-12:01 pm

1 stop25h 36m

$304

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 1/8

6:06 pm-12:20 am

1 stop8h 14m

Pasco Tri Cities

Sun 1/11

6:19 pm-11:50 pm

1 stop27h 31m

$323

MolinePasco

MLI - PSC

MLIPSC

Moline Quad-City

Sat 1/24

10:47 am-9:13 pm

2 stops12h 26m

Pasco Tri Cities

Tue 1/27

12:45 pm-8:34 pm

1 stop5h 49m

$336

PeoriaPasco

PIA - PSC

PIAPSC

Greater Peoria

Sat 1/10

8:35 am-1:46 pm

1 stop7h 11m

Pasco Tri Cities

Tue 1/13

5:00 am-4:43 pm

2 stops9h 43m

$346

ChicagoPasco

MDW - PSC

MDWPSC

Chicago Midway

Fri 1/30

1:49 pm-7:56 pm

1 stop8h 07m

Pasco Tri Cities

Sun 2/1

6:50 am-5:55 pm

2 stops9h 05m

$396

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Wed 1/21

2:50 pm-12:44 pm

1 stop23h 54m

Pasco Tri Cities

Sat 1/24

8:27 am-1:54 pm

1 stop27h 27m

$396

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Wed 1/21

8:05 am-9:10 pm

2 stops15h 05m

Pasco Tri Cities

Sat 1/24

5:00 am-1:16 pm

1 stop6h 16m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 20 results
1
2

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, August is the cheapest month in which you can book a flight from Illinois to Pasco (average of $278). Flying from Illinois to Pasco in February is currently the most expensive (average of $848). 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 December 15, 2025.

It’s typically best to fly out from Illinois to Pasco in the evening. Doing so could potentially save you 37% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Illinois to Pasco?

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 11h 03m. Delta provides one of the quickest options available for as low as $290. Airlines will cover a distance of 1565 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, Lambert-St Louis - Pasco Tri Cities and Chicago Midway - 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, August is the cheapest month in which you can book a flight from Illinois to Pasco (average of $278). Flying from Illinois to Pasco in February is currently the most expensive (average of $848). 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

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 Pasco

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Seattle flights
Dallas/Fort Worth to Seattle flights
John F Kennedy Intl to Seattle flights
Ontario to Seattle flights
Newark to Seattle flights
Hobby to Seattle flights
San Francisco to Seattle flights
O'Hare Intl to Seattle flights
Dulles Intl to Seattle flights
Reagan-National to Seattle flights
Denver to Seattle flights
Atlanta to Seattle flights
George Bush Intcntl to Seattle flights
Sky Harbor Intl to Seattle flights
Baltimore to Seattle flights
Boston to Seattle flights
Los Angeles to Portland flights
Santa Ana to Seattle flights
LaGuardia to Seattle flights
Los Angeles to Everett flights
Austin to Seattle flights
Detroit to Seattle flights
San Diego to Seattle flights
San Jose to Seattle flights
Tampa to Seattle flights
Dulles Intl to Portland flights
Orlando to Seattle flights
Las Vegas to Seattle flights
Philadelphia to Seattle flights
Minneapolis to Seattle flights
Salt Lake City to Seattle flights
Raleigh to Seattle flights
San Francisco to Everett flights
John F Kennedy Intl to Portland flights
Nashville to Seattle flights
Reagan-National to Portland flights
Oakland to Seattle flights
San Francisco to Portland flights
Miami to Seattle flights
Dallas/Fort Worth to Portland flights
Charlotte to Seattle flights
Honolulu to Seattle flights
Fort Lauderdale to Seattle flights
Newark to Portland flights
Milwaukee to Seattle flights
O'Hare Intl to Portland flights
Baltimore to Portland flights
Midway to Seattle flights
Boise to Seattle flights
San Antonio to Seattle flights

Top airline flying from Illinois to Pasco

Discover the top airline 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$342Average$519FlexibilityNo cancel feeOn-time75%

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.