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$141+ Cheap flights from Pasco (PSC) to Illinois

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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — ORD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Pasco to Illinois

Keep the following information in mind while searching for Pasco to Illinois flight deals. Data was last updated September 17, 2025.

Round-trip from

$255
(Delta)

One-way from

$141
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$454
From Pasco Tri Cities to Illinois
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One-way flight from Pasco Tri Cities to Illinois
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Highest demand for flights based on searches. 17% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Pasco to Illinois

Cheapest flights from Pasco to Illinois
Explore the most affordable flight options available from Pasco to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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 11/41:00 pmPSC - ORD
1 stop8h 50mDelta
Thu 11/67:36 pmORD - PSC
1 stop5h 55mDelta
Deal found 9/16$255
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/111:07 pmPSC - ORD
1 stop8h 52mHawaiian Airlines
Tue 10/146:00 amORD - PSC
1 stop8h 30mHawaiian Airlines
Deal found 9/15$314
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:10 amPSC - ORD
1 stop9h 08mDelta
Tue 10/146:05 pmORD - PSC
1 stop6h 50mDelta
Deal found 9/15$315
This Hawaiian Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/143:52 pmPSC - STL
1 stop6h 11mHawaiian Airlines
Sat 10/186:33 amSTL - PSC
1 stop7h 57mHawaiian Airlines
Deal found 9/16$342
This Hawaiian Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 10/137:24 pmPSC - ORD
1 stop9h 00mHawaiian Airlines
Sat 10/186:00 amORD - PSC
1 stop8h 30mHawaiian Airlines
Deal found 9/16$344
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/43:49 pmPSC - ORD
1 stop6h 35mAlaska Airlines
Thu 11/63:25 pmORD - PSC
1 stop7h 26mAlaska Airlines
Deal found 9/15$348
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/137:24 pmPSC - ORD
1 stop9h 00mAlaska Airlines
Sat 10/187:00 amORD - PSC
2 stops16h 19mAlaska Airlines
Deal found 9/16$376
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/75:20 amPSC - STL
1 stop5h 24mUnited Airlines
Thu 10/95:35 pmSTL - PSC
1 stop7h 40mUnited Airlines
Deal found 9/16$377
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/103:23 pmPSC - ORD
1 stop30h 54mMultiple Airlines
Tue 10/1411:00 amORD - PSC
2 stops33h 16mMultiple Airlines
Deal found 9/15$388
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/107:24 pmPSC - ORD
1 stop9h 00mAlaska Airlines
Tue 10/146:00 amORD - PSC
1 stop8h 30mAlaska Airlines
Deal found 9/15$394
This Delta deal was found by Cheapflights users on 9/16. 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 10/296:10 amPSC - STL
2 stops10h 30mDelta
Sun 11/27:40 pmSTL - PSC
1 stop5h 51mDelta
Deal found 9/16$400
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/223:52 pmPSC - ORD
1 stop6h 07mAlaska Airlines
Sun 10/266:00 amORD - PSC
1 stop16h 51mAlaska Airlines
Deal found 9/15$402

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pasco to Illinois 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 September 17, 2025.
Use the filters below to find and compare flights from Pasco to Illinois that are best for you.

Fly from

Pasco

Fly to

Illinois

Route

Depart

Return

Price

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Tue 11/4

1:00 pm-11:50 pm

1 stop8h 50m

Chicago O'Hare Intl

Thu 11/6

7:36 pm-11:31 pm

1 stop5h 55m

$255

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Sat 10/11

1:07 pm-11:59 pm

1 stop8h 52m

Chicago O'Hare Intl

Tue 10/14

6:00 am-12:30 pm

1 stop8h 30m

$314

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Sat 10/11

6:10 am-5:18 pm

1 stop9h 08m

Chicago O'Hare Intl

Tue 10/14

6:05 pm-10:55 pm

1 stop6h 50m

$315

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 10/14

3:52 pm-12:03 am

1 stop6h 11m

Lambert-St Louis

Sat 10/18

6:33 am-12:30 pm

1 stop7h 57m

$342

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Mon 10/13

7:24 pm-6:24 am

1 stop9h 00m

Chicago O'Hare Intl

Sat 10/18

6:00 am-12:30 pm

1 stop8h 30m

$344

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Tue 11/4

3:49 pm-12:24 am

1 stop6h 35m

Chicago O'Hare Intl

Thu 11/6

3:25 pm-8:51 pm

1 stop7h 26m

$348

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 3/3

6:01 am-1:52 pm

1 stop5h 51m

Lambert-St Louis

Wed 3/4

2:55 pm-8:56 pm

1 stop8h 01m

$367

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 3/3

1:00 pm-12:37 am

2 stops9h 37m

Lambert-St Louis

Wed 3/4

7:30 am-12:03 pm

1 stop6h 33m

$370

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Mon 10/13

7:24 pm-6:24 am

1 stop9h 00m

Chicago O'Hare Intl

Sat 10/18

7:00 am-9:19 pm

2 stops16h 19m

$376

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Wed 10/29

5:13 pm-12:24 am

1 stop5h 11m

Lambert-St Louis

Sun 11/2

7:40 pm-11:31 pm

1 stop5h 51m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 36 results
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Best time to book a flight from Pasco to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Pasco to Illinois (average of $245). Flying from Pasco to Illinois in March is currently the most expensive (average of $321). 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 PSC to IL?

Find hourly flight availability from Pasco to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pasco to Illinois as you normally would.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated September 17, 2025.
Read reviews from past customers who have flown Alaska Airlines and Delta from Pasco to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Pasco to Illinois. 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 from for flights from Pasco to Illinois?

    For a flight from Pasco to Illinois, you will be flying from Tri Cities. Pasco Tri Cities (PSC) is just 1.9 mi from the center of the city.

  • How long is the flight from Pasco to Illinois?

    There are many flights that can get you from Pasco to Illinois in 8h 50m. Fly via Delta or Hawaiian Airlines to get the fastest option. Airlines will cover a distance of 1565 mi. This flight may include one or multiple stops.

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

    When deciding which route to take from Pasco to Illinois consider Pasco Tri Cities - Chicago O'Hare Intl, Pasco Tri Cities - Chicago Midway or Pasco Tri Cities - Lambert-St Louis as they are the most popular.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Pasco to Illinois (average of $245). Flying from Pasco to Illinois in March is currently the most expensive (average of $321). 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

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Alternative routes for Pasco to Illinois

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

Discover the top 2 airlines that operate flights from Pasco to Illinois. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$177Average$418FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$258Average$451FlexibilityNo cancel feeOn-time75%

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