HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$137+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — ORD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pasco to Illinois with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$311
(Delta)

One-way from

$137
(Alaska Airlines)

Popular in

January

Cheapest in

September

Average price

$560
Provider with most accurate pricing for Pasco Tri Cities-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Pasco Tri Cities-Chicago (CHI) flights.
Search Deals
From Pasco Tri Cities to Illinois
Search Deals
One-way flight from Pasco Tri Cities to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 28, 2025.

This Delta deal was found by Cheapflights users on 3/27. 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 5/215:00 amPSC - ORD
1 stop6h 30mDelta
Sat 5/244:30 pmORD - PSC
1 stop7h 38mDelta
Deal found 3/27$311
This Delta deal was found by Cheapflights users on 3/25. 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 8/125:00 pmPSC - STL
1 stop5h 38mDelta
Wed 8/202:18 pmSTL - PSC
2 stops11h 44mDelta
Deal found 3/25$376
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/218:38 amPSC - ORD
1 stop28h 10mAlaska Airlines
Thu 4/246:00 amORD - PSC
1 stop6h 51mAlaska Airlines
Deal found 3/27$380
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Mon 4/219:33 pmPSC - ORD
2 stops30h 12mMultiple Airlines
Thu 4/249:38 pmORD - PSC
2 stops24h 12mMultiple Airlines
Deal found 3/27$383
This Delta deal was found by Cheapflights users on 3/28. 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.
Fri 6/135:15 pmPSC - MDW
2 stops13h 26mDelta
Mon 6/161:09 pmMDW - PSC
2 stops12h 00mDelta
Deal found 3/28$423
This Hawaiian Airlines deal was found by Cheapflights users on 3/27. 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 9/251:08 pmPSC - ORD
1 stop6h 55mHawaiian Airlines
Mon 9/291:01 pmORD - PSC
1 stop8h 19mHawaiian Airlines
Deal found 3/27$434
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 7/302:55 pmPSC - ORD
1 stop7h 42mAmerican Airlines
Mon 8/47:34 amORD - PSC
1 stop7h 57mAmerican Airlines
Deal found 3/27$513
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/1112:30 pmPSC - STL
1 stop26h 01mUnited Airlines
Tue 4/154:45 pmSTL - PSC
1 stop22h 09mUnited Airlines
Deal found 3/27$515
This American Airlines deal was found by Cheapflights users on 3/26. 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.
Thu 4/103:10 pmPSC - STL
1 stop6h 40mAmerican Airlines
Mon 4/142:24 pmSTL - PSC
1 stop7h 37mAmerican Airlines
Deal found 3/26$529
This United Airlines deal was found by Cheapflights users on 3/27. 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 9/256:08 amPSC - ORD
2 stops15h 42mUnited Airlines
Tue 9/3010:50 amORD - PSC
2 stops14h 17mUnited Airlines
Deal found 3/27$550

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 March 28, 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 5/21

5:00 am-1:30 pm

1 stop6h 30m

Chicago O'Hare Intl

Sat 5/24

4:30 pm-10:08 pm

1 stop7h 38m

$311

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 8/12

5:00 pm-12:38 am

1 stop5h 38m

Lambert-St Louis

Wed 8/20

2:18 pm-12:02 am

2 stops11h 44m

$376

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Mon 4/21

8:38 am-2:48 pm

1 stop28h 10m

Chicago O'Hare Intl

Thu 4/24

6:00 am-10:51 am

1 stop6h 51m

$380

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Mon 4/21

9:33 pm-5:45 am

2 stops30h 12m

Chicago O'Hare Intl

Thu 4/24

9:38 pm-7:50 pm

2 stops24h 12m

$383

PascoChicago

PSC - MDW

PSCMDW

Pasco Tri Cities

Fri 6/13

5:15 pm-8:41 am

2 stops13h 26m

Chicago Midway

Mon 6/16

1:09 pm-11:09 pm

2 stops12h 00m

$423

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Wed 7/30

2:55 pm-12:37 am

1 stop7h 42m

Chicago O'Hare Intl

Mon 8/4

7:34 am-1:31 pm

1 stop7h 57m

$513

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Fri 4/11

12:30 pm-4:31 pm

1 stop26h 01m

Lambert-St Louis

Tue 4/15

4:45 pm-12:54 pm

1 stop22h 09m

$515

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Thu 4/10

3:10 pm-11:50 pm

1 stop6h 40m

Lambert-St Louis

Mon 4/14

2:24 pm-8:01 pm

1 stop7h 37m

$529

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Thu 4/10

6:13 am-4:53 pm

1 stop8h 40m

Chicago O'Hare Intl

Mon 4/14

5:53 pm-11:59 pm

1 stop8h 06m

$569

PascoChicago

PSC - ORD

PSCORD

Pasco Tri Cities

Mon 4/21

12:30 pm-7:37 am

2 stops17h 07m

Chicago O'Hare Intl

Thu 4/24

9:15 pm-11:39 am

2 stops16h 24m

$684

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 19 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 $323). 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 March 28, 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.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 January, when temperatures are typically at their lowest (around 23.0 F).

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 March 28, 2025.
See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Pasco to Illinois have to say. 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
9,798 reviews

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

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
9,798 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

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
7,897 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,336 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

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
8,603 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

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
9,798 reviews

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

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 Alaska Airlines, which is currently one of the cheapest options available, starting at $137. Delta flights start at $174 while deals on American Airlines start at $252 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 $323). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pasco to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Sky Harbor Intl flights
Seattle to Las Vegas flights
Seattle to Los Angeles flights
Seattle to Newark flights
Seattle to Dallas/Fort Worth flights
Seattle to John F Kennedy Intl flights
Seattle to San Diego flights
Seattle to Honolulu flights
Seattle to Santa Ana flights
Portland to Los Angeles flights
Seattle to Burbank flights
Seattle to Hobby flights
Seattle to San Francisco flights
Seattle to O'Hare Intl flights
Seattle to Reagan-National flights
Seattle to Ontario flights
Seattle to Boston flights
Seattle to LaGuardia flights
Portland to Las Vegas flights
Seattle to Denver flights
Seattle to Orlando flights
Seattle to Kahului flights
Seattle to Dulles Intl flights
Seattle to San Jose flights
Seattle to George Bush Intcntl flights
Seattle to Oakland flights
Seattle to Austin flights
Everett to Las Vegas flights
Seattle to Palm Springs flights
Portland to Sky Harbor Intl flights
Seattle to New Orleans flights
Seattle to Salt Lake City flights
Portland to Newark flights
Seattle to Atlanta flights
Seattle to Philadelphia flights
Everett to Los Angeles flights
Seattle to Miami flights
Portland to John F Kennedy Intl flights
Portland to Dallas/Fort Worth flights
Seattle to Kailua-Kona flights
Portland to Honolulu flights
Seattle to Minneapolis flights
Seattle to Detroit flights
Seattle to Nashville flights
Seattle to Midway flights
Portland to San Diego flights
Seattle to Lihue flights
Portland to Denver flights
Seattle to Baltimore flights
Everett to Sky Harbor Intl flights

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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$187Average$417FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$382Average$524FlexibilityNo cancel feeOn-time75%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.