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$108+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — ORD
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
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 June 30, 2025.

Round-trip from

$261
(American Airlines)

One-way from

$108
(Mytrip)

Popular in

January

Cheapest in

September

Average price

$439
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. 18% potential increase in price ($109 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 June 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 June 30, 2025.

This American Airlines deal was found by Cheapflights users on 6/29. 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 8/122:29 pmPSC - STL
1 stop7h 47mAmerican Airlines
Wed 8/207:53 amSTL - PSC
1 stop7h 50mAmerican Airlines
Deal found 6/29$261
This Delta deal was found by Cheapflights users on 6/29. 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 8/125:18 pmPSC - STL
1 stop5h 20mDelta
Wed 8/202:25 pmSTL - PSC
2 stops10h 20mDelta
Deal found 6/29$266
This Hawaiian Airlines deal was found by Cheapflights users on 6/28. 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.
Wed 8/133:46 pmPSC - ORD
1 stop6h 13mHawaiian Airlines
Mon 8/1810:00 amORD - PSC
1 stop7h 06mHawaiian Airlines
Deal found 6/28$326
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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 8/137:52 pmPSC - ORD
1 stop7h 48mAlaska Airlines
Mon 8/187:18 pmORD - PSC
2 stops17h 31mAlaska Airlines
Deal found 6/28$332
This Delta deal was found by Cheapflights users on 6/28. 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 8/136:20 amPSC - ORD
2 stops9h 47mDelta
Mon 8/182:15 pmORD - PSC
2 stops10h 30mDelta
Deal found 6/28$339
This American Airlines deal was found by Cheapflights users on 6/29. 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.
Sat 7/262:55 pmPSC - ORD
1 stop7h 53mAmerican Airlines
Sat 9/67:34 amORD - PSC
1 stop8h 09mAmerican Airlines
Deal found 6/29$387
This Delta deal was found by Cheapflights users on 6/29. 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 7/266:45 amPSC - MDW
1 stop8h 25mDelta
Sat 9/131:43 pmMDW - PSC
1 stop8h 04mDelta
Deal found 6/29$414
This Mytrip deal was found by Cheapflights users on 6/29. 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.
Fri 8/1511:40 amPSC - ORD
1 stop15h 10mMultiple Airlines
Sun 8/176:20 amORD - PSC
2 stops30h 30mMultiple Airlines
Deal found 6/29$422
This Alaska Airlines deal was found by Cheapflights users on 6/29. 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 8/1211:29 amPSC - STL
2 stops10h 47mAlaska Airlines
Wed 8/206:45 amSTL - PSC
2 stops16h 30mAlaska Airlines
Deal found 6/29$449
This United Airlines deal was found by Cheapflights users on 6/29. 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.
Mon 7/146:38 amPSC - STL
1 stop8h 07mUnited Airlines
Fri 7/185:41 pmSTL - PSC
1 stop7h 07mUnited Airlines
Deal found 6/29$529

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 June 30, 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

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 8/12

2:29 pm-12:16 am

1 stop7h 47m

Lambert-St Louis

Wed 8/20

7:53 am-1:43 pm

1 stop7h 50m

$261

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 8/12

5:18 pm-12:38 am

1 stop5h 20m

Lambert-St Louis

Wed 8/20

2:25 pm-10:45 pm

2 stops10h 20m

$266

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Wed 8/13

3:46 pm-11:59 pm

1 stop6h 13m

Chicago O'Hare Intl

Mon 8/18

10:00 am-3:06 pm

1 stop7h 06m

$326

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Wed 8/13

7:52 pm-5:40 am

1 stop7h 48m

Chicago O'Hare Intl

Mon 8/18

7:18 pm-10:49 am

2 stops17h 31m

$332

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Wed 8/13

6:20 am-6:07 pm

2 stops9h 47m

Chicago O'Hare Intl

Mon 8/18

2:15 pm-10:45 pm

2 stops10h 30m

$339

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Sat 7/26

2:55 pm-12:48 am

1 stop7h 53m

Chicago O'Hare Intl

Sat 9/6

7:34 am-1:43 pm

1 stop8h 09m

$387

PascoChicago

PSC - MDW

PSCMDW

Pasco Tri Cities

Sat 7/26

6:45 am-5:10 pm

1 stop8h 25m

Chicago Midway

Sat 9/13

1:43 pm-7:47 pm

1 stop8h 04m

$414

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Fri 8/15

11:40 am-4:50 am

1 stop15h 10m

Chicago O'Hare Intl

Sun 8/17

6:20 am-10:50 am

2 stops30h 30m

$422

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 8/12

11:29 am-12:16 am

2 stops10h 47m

Lambert-St Louis

Wed 8/20

1:42 pm-12:08 am

2 stops12h 26m

$449

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 7/14

6:38 am-4:45 pm

1 stop8h 07m

Lambert-St Louis

Fri 7/18

5:41 pm-10:48 pm

1 stop7h 07m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 20 results
1
2

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 June 30, 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 June 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines 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

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.8
Good
2,529 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,852 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 cheapest airlines to fly from Pasco to Illinois one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $187. Hawaiian Airlines flights start at $217 while deals on Delta start at $219 one-way.

  • 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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$177Average$409FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$307Average$524FlexibilityNo cancel feeOn-time75%

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