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$279+ Cheap flights from Pasco (PSC) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — ORD
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
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 August 16, 2025.

Round-trip from

$279
(Delta)

Popular in

January

Cheapest in

February

Average price

$384
From Pasco Tri Cities to Illinois
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 August 16, 2025.

This Delta deal was found by Cheapflights users on 8/13. 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 9/91:00 pmPSC - ORD
1 stop8h 51mDelta
Sat 9/133:58 pmORD - PSC
1 stop5h 49mDelta
Deal found 8/13$279
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Mon 9/89:42 amPSC - ORD
2 stops30h 32mMultiple Airlines
Fri 9/126:15 amORD - PSC
1 stop9h 20mMultiple Airlines
Deal found 8/13$294
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 9/91:05 pmPSC - ORD
1 stop8h 58mAlaska Airlines
Sat 9/132:07 pmORD - PSC
2 stops9h 08mAlaska Airlines
Deal found 8/13$312
This Delta deal was found by Cheapflights users on 8/13. 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 9/85:47 pmPSC - ORD
1 stop17h 30mDelta
Sat 9/132:25 pmORD - PSC
1 stop8h 30mDelta
Deal found 8/13$317
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/161:05 pmPSC - ORD
1 stop8h 58mHawaiian Airlines
Fri 9/195:45 pmORD - PSC
1 stop8h 23mHawaiian Airlines
Deal found 8/14$327
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 9/77:57 pmPSC - ORD
1 stop9h 06mAlaska Airlines
Sat 9/136:20 amORD - PSC
1 stop8h 08mAlaska Airlines
Deal found 8/13$328
This Delta deal was found by Cheapflights users on 8/14. 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.
Thu 9/41:00 pmPSC - ORD
1 stop8h 51mDelta
Sat 9/69:47 amORD - PSC
2 stops11h 58mDelta
Deal found 8/14$333
This Delta deal was found by Cheapflights users on 8/13. 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 9/91:00 pmPSC - ORD
1 stop8h 51mDelta
Sun 9/147:10 amORD - PSC
1 stop18h 01mDelta
Deal found 8/13$347
This Delta deal was found by Cheapflights users on 8/14. 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.
Tue 9/21:00 pmPSC - ORD
1 stop8h 51mDelta
Sat 9/63:50 pmORD - PSC
1 stop5h 55mDelta
Deal found 8/14$353
This Delta deal was found by Cheapflights users on 8/13. 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 9/95:47 pmPSC - MDW
2 stops13h 03mDelta
Sat 9/131:43 pmMDW - PSC
1 stop8h 04mDelta
Deal found 8/13$406
This Hawaiian Airlines deal was found by Cheapflights users on 8/16. 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.
Thu 9/251:05 pmPSC - STL
1 stop8h 54mHawaiian Airlines
Sun 9/286:30 pmSTL - PSC
1 stop7h 38mHawaiian Airlines
Deal found 8/16$414
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/312:55 pmPSC - STL
1 stop7h 21mAmerican Airlines
Thu 9/48:00 amSTL - PSC
1 stop7h 43mAmerican Airlines
Deal found 8/16$458

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 August 16, 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

Wed 9/10

1:00 pm-11:51 pm

1 stop8h 51m

Chicago O'Hare Intl

Sat 9/13

2:25 pm-8:55 pm

1 stop8h 30m

$279

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Tue 9/9

1:00 pm-11:51 pm

1 stop8h 51m

Chicago O'Hare Intl

Sat 9/13

3:58 pm-7:47 pm

1 stop5h 49m

$279

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Mon 9/8

9:42 am-6:14 pm

2 stops30h 32m

Chicago O'Hare Intl

Fri 9/12

6:15 am-1:35 pm

1 stop9h 20m

$294

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Wed 9/10

1:05 pm-12:03 am

1 stop8h 58m

Chicago O'Hare Intl

Sat 9/13

2:07 pm-9:15 pm

2 stops9h 08m

$312

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Tue 9/9

1:05 pm-12:03 am

1 stop8h 58m

Chicago O'Hare Intl

Sat 9/13

2:07 pm-9:15 pm

2 stops9h 08m

$312

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Mon 9/8

5:47 pm-1:17 pm

1 stop17h 30m

Chicago O'Hare Intl

Sat 9/13

2:25 pm-8:55 pm

1 stop8h 30m

$317

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Tue 9/16

1:05 pm-12:03 am

1 stop8h 58m

Chicago O'Hare Intl

Fri 9/19

3:20 pm-9:15 pm

1 stop7h 55m

$327

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Thu 9/25

1:05 pm-12:03 am

1 stop8h 58m

Chicago O'Hare Intl

Sat 9/27

8:00 am-3:29 pm

1 stop9h 29m

$327

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Thu 9/4

1:05 pm-10:07 pm

1 stop7h 02m

Chicago O'Hare Intl

Sat 9/6

5:45 pm-12:08 am

1 stop8h 23m

$327

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Thu 9/18

2:55 pm-12:27 am

1 stop7h 32m

Chicago O'Hare Intl

Tue 9/23

7:34 am-1:43 pm

1 stop8h 09m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 23 results
1
2
3

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 August 16, 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.

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

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 August 16, 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

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,985 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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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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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$177Average$393FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$258Average$512FlexibilityNo cancel feeOn-time75%

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