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Cheap flights from Illinois to Pasco from $149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Pasco departing on 4/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Pasco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
8:00 am - 3:42 pm
ORD
-
PSC
9h 42m
1 stop
Alaska Airlines Logo
7:30 pm - 6:40 am
PSC
-
ORD
9h 10m
1 stop
$338Alaska Airlines
Wed, Apr 29 - Sat, May 2
Alaska Airlines Logo
6:00 am - 6:13 pm
ORD
-
PSC
14h 13m
2 stops
Alaska Airlines Logo
1:21 pm - 11:59 pm
PSC
-
ORD
8h 38m
1 stop
$345Alaska Airlines
Wed, Apr 29 - Sat, May 2
Alaska Airlines Logo
8:48 pm - 3:42 pm
ORD
-
PSC
20h 54m
1 stop
Alaska Airlines Logo
1:21 pm - 11:59 pm
PSC
-
ORD
8h 38m
1 stop
$350Alaska Airlines
Wed, Apr 29 - Sat, May 2
Delta Logo
6:12 pm - 11:29 pm
STL
-
PSC
7h 17m
1 stop
Delta Logo
5:19 pm - 12:21 am
PSC
-
STL
5h 02m
1 stop
$352Delta
Wed, Apr 1 - Thu, Apr 9
Delta Logo
7:25 am - 11:41 am
ORD
-
PSC
6h 16m
1 stop
Delta Logo
5:10 am - 1:23 pm
PSC
-
ORD
6h 13m
1 stop
$354Delta
Thu, Apr 9 - Thu, Apr 16
Alaska Airlines Logo
8:00 am - 6:13 pm
ORD
-
PSC
12h 13m
2 stops
Alaska Airlines Logo
7:30 pm - 6:40 am
PSC
-
ORD
9h 10m
1 stop
$355Alaska Airlines
Wed, Apr 29 - Sat, May 2
Delta Logo
6:12 pm - 11:29 pm
STL
-
PSC
7h 17m
1 stop
Delta Logo
12:45 pm - 11:25 pm
PSC
-
STL
8h 40m
2 stops
$357Delta
Wed, Apr 1 - Thu, Apr 9
United Airlines Logo
2:35 pm - 8:53 pm
STL
-
PSC
8h 18m
1 stop
United Airlines Logo
5:00 am - 2:28 pm
PSC
-
STL
7h 28m
1 stop
$367United Airlines
Wed, May 6 - Sat, May 9
United Airlines Logo
2:31 pm - 12:50 am
MLI
-
PSC
12h 19m
2 stops
United Airlines Logo
12:10 pm - 10:29 pm
PSC
-
MLI
8h 19m
2 stops
$381United Airlines
Sat, May 23 - Sat, May 30
United Airlines Logo
2:35 pm - 8:53 pm
STL
-
PSC
8h 18m
1 stop
United Airlines Logo
5:00 am - 2:28 pm
PSC
-
STL
7h 28m
1 stop
$387United Airlines
Wed, May 6 - Sat, May 9

United Airlines flights from Illinois to Pasco

Our best United Airlines deals on Illinois to Pasco flight tickets
United Airlines
May 6
STL2:35 pmLambert-St Louis
8h 18m
1 stop
PSC8:53 pmPasco Tri Cities
May 9
PSC5:00 amPasco Tri Cities
7h 28m
1 stop
STL2:28 pmLambert-St Louis
$367
United Airlines
May 23
MLI2:31 pmMoline Quad-City
12h 19m
2 stops
PSC12:50 amPasco Tri Cities
May 30
PSC12:10 pmPasco Tri Cities
8h 19m
2 stops
MLI10:29 pmMoline Quad-City
$381
United Airlines
May 6
STL2:35 pmLambert-St Louis
8h 18m
1 stop
PSC8:53 pmPasco Tri Cities
May 9
PSC5:00 amPasco Tri Cities
7h 28m
1 stop
STL2:28 pmLambert-St Louis
$387

Alaska Airlines flights from Illinois to Pasco

Our best Alaska Airlines deals on Illinois to Pasco flight tickets
Alaska Airlines
Apr 29
ORD8:00 amChicago O'Hare Intl
9h 42m
1 stop
PSC3:42 pmPasco Tri Cities
May 2
PSC7:30 pmPasco Tri Cities
9h 10m
1 stop
ORD6:40 amChicago O'Hare Intl
$338
Alaska Airlines
Apr 29
ORD6:00 amChicago O'Hare Intl
14h 13m
2 stops
PSC6:13 pmPasco Tri Cities
May 2
PSC1:21 pmPasco Tri Cities
8h 38m
1 stop
ORD11:59 pmChicago O'Hare Intl
$345
Alaska Airlines
Apr 29
ORD8:48 pmChicago O'Hare Intl
20h 54m
1 stop
PSC3:42 pmPasco Tri Cities
May 2
PSC1:21 pmPasco Tri Cities
8h 38m
1 stop
ORD11:59 pmChicago O'Hare Intl
$350

momondo 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, momondo users made 832,500 searches. Data last updated March 13, 2026.
Use the filters below to find and compare flights from Illinois to Pasco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Wed 4/29

8:00 am-3:42 pm

1 stop9h 42m

Pasco Tri Cities

Sat 5/2

7:30 pm-6:40 am

1 stop9h 10m

$338

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Wed 4/29

6:00 am-6:13 pm

2 stops14h 13m

Pasco Tri Cities

Sat 5/2

1:21 pm-11:59 pm

1 stop8h 38m

$345

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Wed 4/29

8:48 pm-3:42 pm

1 stop20h 54m

Pasco Tri Cities

Sat 5/2

1:21 pm-11:59 pm

1 stop8h 38m

$350
Quickest round-trip

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Wed 4/1

6:12 pm-11:29 pm

1 stop7h 17m

Pasco Tri Cities

Thu 4/9

5:19 pm-12:21 am

1 stop5h 02m

$352

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 4/9

7:25 am-11:41 am

1 stop6h 16m

Pasco Tri Cities

Thu 4/16

5:10 am-1:23 pm

1 stop6h 13m

$354

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Wed 4/29

8:00 am-6:13 pm

2 stops12h 13m

Pasco Tri Cities

Sat 5/2

7:30 pm-6:40 am

1 stop9h 10m

$355

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Wed 4/1

6:12 pm-11:29 pm

1 stop7h 17m

Pasco Tri Cities

Thu 4/9

12:45 pm-11:25 pm

2 stops8h 40m

$357

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Wed 5/6

2:35 pm-8:53 pm

1 stop8h 18m

Pasco Tri Cities

Sat 5/9

5:00 am-2:28 pm

1 stop7h 28m

$367

MolinePasco

MLI - PSC

MLIPSC

Moline Quad-City

Sat 5/23

2:31 pm-12:50 am

2 stops12h 19m

Pasco Tri Cities

Sat 5/30

12:10 pm-10:29 pm

2 stops8h 19m

$381

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Wed 5/6

2:35 pm-8:53 pm

1 stop8h 18m

Pasco Tri Cities

Sat 5/9

5:00 am-2:28 pm

1 stop7h 28m

$387

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Pasco from

How to get the cheapest flight ticket from Illinois to Pasco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Pasco?

The month of August is, on average, the cheapest month to fly to Pasco from Illinois, with most prices found around $288. The month of December is another great option to travel to Pasco, with average flight prices from Illinois averaging around $377.

Can stopping save me money on Illinois to Pasco flights?

You could potentially save up to 63% on your flight if you consider stops on a Illinois to Pasco flight.

Cheap Illinois to Pasco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Pasco

Fastest flight time

6h 09m

Direct flights

None
The fastest flight from Illinois to Pasco takes 6h 09m
There are no direct flights from Illinois to Pasco. There are no popular flight routes from Illinois to Pasco.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Pasco Tri Cities Airport?

    Prices for flights from Illinois to Pasco Tri Cities Airport are updated daily.

  • How many operators does momondo search for flights from Illinois to Pasco Tri Cities Airport?

  • How old do you have to be to fly from Illinois to Pasco Tri Cities Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Pasco Tri Cities Airport.

  • What documentation or ID do you need to fly to Pasco Tri Cities Airport?

    The required travel and health documents for your Pasco Tri Cities Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Pasco Tri Cities Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Pasco

Compare and see reviews for airlines that fly from Illinois to Pasco with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $342Free CancellationRating
8.0
12,036 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $439Free CancellationRating
7.4
9,418 reviews
Search United Airlines flights

Traveling to a place near Pasco?

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

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Pasco?

It is quick and easy to find Illinois to Pasco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Pasco that suits you.

Can I find flights from Illinois to Pasco with flexible booking policies on momondo?

Yes. All flights to Pasco from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Illinois to Pasco?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Pasco from Illinois.

I’m not ready to book a flight from Illinois to Pasco right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Pasco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Pasco and let you know when they change.

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