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$129+ 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PSC
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Illinois to Pasco

Keep the following information in mind while searching for Illinois to Pasco flight deals. Data was last updated June 12, 2025.

Round-trip from

$246
(Alaska Airlines)

One-way from

$129
(Alaska Airlines)

Popular in

January

Cheapest in

October

Average price

$553
From Illinois to Pasco Tri Cities
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One-way flight from Illinois to Pasco Tri Cities
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Highest demand for flights based on searches. 13% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($27 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 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 June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 8/286:20 amORD - PSC
1 stop8h 08mAlaska Airlines
Mon 9/17:55 pmPSC - ORD
1 stop24h 09mAlaska Airlines
Deal found 6/9$246
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 7/96:00 amORD - PSC
1 stop6h 49mHawaiian Airlines
Wed 7/161:30 pmPSC - ORD
1 stop8h 29mHawaiian Airlines
Deal found 6/11$258
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/267:22 amORD - PSC
1 stop8h 10mAmerican Airlines
Sat 8/22:55 pmPSC - ORD
1 stop7h 53mAmerican Airlines
Deal found 6/11$317
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/266:00 amORD - PSC
1 stop8h 36mMultiple Airlines
Sat 8/21:30 pmPSC - ORD
1 stop8h 29mMultiple Airlines
Deal found 6/11$330
This Delta deal was found by Cheapflights users on 6/11. 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 6/247:20 pmORD - PSC
1 stop6h 09mDelta
Fri 7/41:00 pmPSC - ORD
1 stop6h 35mDelta
Deal found 6/11$343
This Delta deal was found by Cheapflights users on 6/11. 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 8/217:35 amSTL - PSC
2 stops11h 00mDelta
Sun 8/245:45 amPSC - STL
1 stop5h 44mDelta
Deal found 6/11$365
This Delta deal was found by Cheapflights users on 6/11. 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 7/261:46 pmMDW - PSC
1 stop8h 04mDelta
Sat 8/26:45 amPSC - MDW
1 stop8h 25mDelta
Deal found 6/11$389
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/87:44 amSTL - PSC
1 stop7h 48mAmerican Airlines
Mon 7/142:55 pmPSC - STL
1 stop7h 33mAmerican Airlines
Deal found 6/11$389
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 7/93:24 pmSTL - PSC
1 stop7h 31mAlaska Airlines
Mon 7/147:52 pmPSC - STL
1 stop20h 43mAlaska Airlines
Deal found 6/11$397
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/211:39 pmSTL - PSC
2 stops11h 29mUnited Airlines
Sun 8/245:30 amPSC - STL
2 stops8h 14mUnited Airlines
Deal found 6/11$435
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 7/107:32 pmSTL - PSC
1 stop6h 27mHawaiian Airlines
Thu 7/171:30 pmPSC - STL
1 stop8h 29mHawaiian Airlines
Deal found 6/11$474
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/223:39 pmPIA - PSC
2 stops21h 51mUnited Airlines
Tue 7/291:36 pmPSC - PIA
2 stops18h 43mUnited Airlines
Deal found 6/12$638

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 June 12, 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 8/28

6:20 am-12:28 pm

1 stop8h 08m

Pasco Tri Cities

Mon 9/1

7:55 pm-10:04 pm

1 stop24h 09m

$246

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Wed 7/9

6:00 am-10:49 am

1 stop6h 49m

Pasco Tri Cities

Wed 7/16

1:30 pm-11:59 pm

1 stop8h 29m

$258

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Sat 7/26

7:22 am-1:32 pm

1 stop8h 10m

Pasco Tri Cities

Sat 8/2

2:55 pm-12:48 am

1 stop7h 53m

$317

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Sat 7/26

6:00 am-12:36 pm

1 stop8h 36m

Pasco Tri Cities

Sat 8/2

1:30 pm-11:59 pm

1 stop8h 29m

$330

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Tue 6/24

7:20 pm-11:29 pm

1 stop6h 09m

Pasco Tri Cities

Fri 7/4

1:00 pm-9:35 pm

1 stop6h 35m

$343

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Thu 8/21

7:35 am-4:35 pm

2 stops11h 00m

Pasco Tri Cities

Sun 8/24

5:45 am-1:29 pm

1 stop5h 44m

$365

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Tue 7/8

7:44 am-1:32 pm

1 stop7h 48m

Pasco Tri Cities

Mon 7/14

2:55 pm-12:28 am

1 stop7h 33m

$389

ChicagoPasco

MDW - PSC

MDWPSC

Chicago Midway

Sat 7/26

1:46 pm-7:50 pm

1 stop8h 04m

Pasco Tri Cities

Sat 8/2

6:45 am-5:10 pm

1 stop8h 25m

$389

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Wed 7/9

3:24 pm-8:55 pm

1 stop7h 31m

Pasco Tri Cities

Mon 7/14

7:52 pm-6:35 pm

1 stop20h 43m

$397

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Thu 8/21

1:39 pm-11:08 pm

2 stops11h 29m

Pasco Tri Cities

Sun 8/24

5:30 am-3:44 pm

2 stops8h 14m

$435

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 24 results
1
2
3

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, January is the cheapest month in which you can book a flight from Illinois to Pasco (average of $349). Flying from Illinois to Pasco in July is currently the most expensive (average of $482). 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 June 12, 2025.

When flying from Illinois to Pasco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Pasco by month

Plan your trip to Pasco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Pasco ranges from 0.3 - 1.2 inches per month. January is typically the wettest month, when rainfall can reach 1.2 in. July is typically the driest time to visit Pasco when rainfall is around 0.3 in.

Temperature in Pasco by month

Plan your trip to Pasco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Pasco, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Pasco

Get insights into the airlines that provide service to Pasco. 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 Pasco. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Illinois to Pasco. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • What are the cheapest airlines to fly from Illinois to Pasco one-way?

    $129 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Delta and Hawaiian Airlines, with prices starting from $160 and $193, respectively.

  • 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, January is the cheapest month in which you can book a flight from Illinois to Pasco (average of $349). Flying from Illinois to Pasco in July is currently the most expensive (average of $482). 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 Illinois?

Book flights to Illinois if you plan to visit one of these locations
Kennewick
Richland

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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 2 airlines flying from Illinois to Pasco

Discover the top 2 airlines 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$294Average$411FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$312Average$457FlexibilityNo cancel feeOn-time75%

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