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Pasco

$187+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PSC
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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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 February 3, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 2/287:00 am
ORD
-
PSC
1 stop7h 19m
Alaska Airlines
Tue 3/38:25 am
PSC
-
ORD
1 stop6h 08m
Alaska Airlines
Deal found 2/2$277
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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.
Fri 3/133:54 pm
ORD
-
PSC
1 stop7h 01m
Alaska Airlines
Mon 3/168:25 am
PSC
-
ORD
1 stop6h 08m
Alaska Airlines
Deal found 2/2$344
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
ORD
-
PSC
1 stop6h 50m
Alaska Airlines
Sun 6/146:31 pm
PSC
-
ORD
1 stop9h 49m
Alaska Airlines
Deal found 2/1$395
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 8/296:20 pm
STL
-
PSC
1 stop6h 16m
Alaska Airlines
Tue 9/13:55 pm
PSC
-
STL
1 stop23h 18m
Alaska Airlines
Deal found 2/2$395
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/262:45 pm
ORD
-
PSC
1 stop8h 09m
United Airlines
Mon 3/301:39 pm
PSC
-
ORD
1 stop9h 20m
United Airlines
Deal found 2/2$402
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:20 am
ORD
-
PSC
1 stop17h 16m
Alaska Airlines
Thu 7/163:55 pm
PSC
-
ORD
1 stop11h 05m
Alaska Airlines
Deal found 2/1$408
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Fri 3/272:01 pm
ORD
-
PSC
1 stop8h 53m
United Airlines
Tue 4/71:39 pm
PSC
-
ORD
1 stop9h 20m
United Airlines
Deal found 2/2$416
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 5/237:45 pm
ORD
-
PSC
1 stop6h 29m
Alaska Airlines
Mon 5/251:43 pm
PSC
-
ORD
1 stop8h 16m
Alaska Airlines
Deal found 2/2$417
This Delta deal was found by Cheapflights users on 2/1. 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.
Mon 2/161:49 pm
MDW
-
PSC
1 stop8h 15m
Delta
Fri 2/206:45 am
PSC
-
MDW
2 stops8h 52m
Delta
Deal found 2/1$482
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/31:24 pm
PIA
-
PSC
2 stops9h 49m
United Airlines
Thu 2/1212:44 pm
PSC
-
PIA
1 stop5h 53m
United Airlines
Deal found 2/1$524
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 8/126:00 am
MLI
-
PSC
2 stops8h 34m
Alaska Airlines
Thu 8/205:22 am
PSC
-
MLI
2 stops10h 42m
Alaska Airlines
Deal found 1/31$540
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:42 am
PIA
-
PSC
2 stops16h 10m
United Airlines
Sat 7/112:00 pm
PSC
-
PIA
2 stops27h 26m
United Airlines
Deal found 2/1$545

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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$303
(Alaska Airlines)

One-way from

$187
(American Airlines)

Popular in

March

Cheapest in

August
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. 26% potential increase in price ($178 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($33 potential savings vs. average RT price).
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 February 3, 2026.
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

Sat 2/28

7:00 am-12:19 pm

1 stop7h 19m

Pasco Tri Cities

Tue 3/3

8:25 am-4:33 pm

1 stop6h 08m

$277

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Fri 3/13

3:54 pm-8:55 pm

1 stop7h 01m

Pasco Tri Cities

Mon 3/16

8:25 am-4:33 pm

1 stop6h 08m

$344

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Tue 6/9

6:00 am-10:50 am

1 stop6h 50m

Pasco Tri Cities

Sun 6/14

6:31 pm-6:20 am

1 stop9h 49m

$395

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 3/26

2:45 pm-8:54 pm

1 stop8h 09m

Pasco Tri Cities

Mon 3/30

1:39 pm-12:59 am

1 stop9h 20m

$402

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 7/9

7:20 am-10:36 pm

1 stop17h 16m

Pasco Tri Cities

Thu 7/16

3:55 pm-5:00 am

1 stop11h 05m

$408

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Fri 3/27

2:01 pm-8:54 pm

1 stop8h 53m

Pasco Tri Cities

Tue 4/7

1:39 pm-12:59 am

1 stop9h 20m

$416

ChicagoPasco

MDW - PSC

MDWPSC

Chicago Midway

Mon 2/16

1:49 pm-8:04 pm

1 stop8h 15m

Pasco Tri Cities

Fri 2/20

6:45 am-5:37 pm

2 stops8h 52m

$482

PeoriaPasco

PIA - PSC

PIAPSC

Greater Peoria

Wed 7/1

10:42 am-12:52 am

2 stops16h 10m

Pasco Tri Cities

Sat 7/11

2:00 pm-7:26 pm

2 stops27h 26m

$545

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Tue 2/17

8:41 am-1:43 pm

1 stop7h 02m

Pasco Tri Cities

Sat 2/21

12:44 pm-8:26 pm

1 stop5h 42m

$569

MolinePasco

MLI - PSC

MLIPSC

Moline Quad-City

Fri 2/27

1:30 pm-8:55 pm

2 stops9h 25m

Pasco Tri Cities

Wed 3/11

8:25 am-6:32 pm

2 stops8h 07m

$578

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 28 results
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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, 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 March is currently the most expensive (average of $530). 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.

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 7h 19m. Alaska Airlines provides one of the quickest options available for as low as $277. 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 March is currently the most expensive (average of $530). 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

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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 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$337Average$503FlexibilityNo cancel feeOn-time75%

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