Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Pasco from $142

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 12/4. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Pasco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:15 am - 4:23 pmSTL-PSC
12h 08m2 stops
Delta Logo
5:44 pm - 9:10 amPSC-STL
13h 26m2 stops
$256Delta
Find Deal
Thu, Dec 4 - Tue, Dec 9
Delta Logo
2:20 pm - 10:59 pmSTL-PSC
10h 39m2 stops
Delta Logo
1:00 pm - 12:48 amPSC-STL
9h 48m2 stops
$277Delta
Find Deal
Thu, Dec 4 - Sun, Dec 7
Delta Logo
6:10 pm - 10:59 pmORD-PSC
6h 49m1 stop
Delta Logo
1:00 pm - 11:59 pmPSC-ORD
8h 59m1 stop
$285Delta
Find Deal
Thu, Dec 4 - Wed, Dec 10
Delta Logo
6:00 am - 4:23 pmORD-PSC
12h 23m2 stops
Delta Logo
1:00 pm - 11:59 pmPSC-ORD
8h 59m1 stop
$290Delta
Find Deal
Thu, Dec 4 - Wed, Dec 10
Hawaiian Airlines Logo
3:54 pm - 8:55 pmORD-PSC
7h 01m1 stop
Hawaiian Airlines Logo
12:56 pm - 11:56 pmPSC-ORD
9h 00m1 stop
$304Hawaiian Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Multiple Airlines Logo
1:16 pm - 2:22 pmSTL-PSC
27h 06m1 stop
Multiple Airlines Logo
3:14 pm - 8:59 amPSC-STL
15h 45m2 stops
$310Multiple Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Alaska Airlines Logo
3:23 pm - 8:53 pmSTL-PSC
7h 30m1 stop
Alaska Airlines Logo
6:00 am - 2:27 pmPSC-STL
6h 27m1 stop
$363Alaska Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
Multiple Airlines Logo
4:21 pm - 2:22 pmORD-PSC
24h 01m3 stops
Multiple Airlines Logo
11:48 am - 8:09 pmPSC-ORD
30h 21m3 stops
$482Multiple Airlines
Find Deal
Thu, Dec 4 - Wed, Dec 10
Alaska Airlines Logo
6:00 am - 12:17 amORD-PSC
20h 17m1 stop
Alaska Airlines Logo
6:00 am - 12:13 pmPSC-ORD
28h 13m1 stop
$520Alaska Airlines
Find Deal
Sat, Dec 27 - Sun, Jan 4
American Airlines Logo
2:29 pm - 9:06 pmSTL-PSC
8h 37m1 stop
American Airlines Logo
5:05 am - 1:40 pmPSC-STL
6h 35m1 stop
$794American Airlines
Find Deal
Tue, Nov 25 - Sat, Nov 29

Delta flights from Illinois to Pasco

Our best Delta deals on Illinois to Pasco flight tickets
Delta
Dec 4
STL6:15 amLambert-St Louis
12h 08m
2 stops
PSC4:23 pmPasco Tri Cities
Dec 9
PSC5:44 pmPasco Tri Cities
13h 26m
2 stops
STL9:10 amLambert-St Louis
$256
Find similar
Delta
Dec 4
STL2:20 pmLambert-St Louis
10h 39m
2 stops
PSC10:59 pmPasco Tri Cities
Dec 7
PSC1:00 pmPasco Tri Cities
9h 48m
2 stops
STL12:48 amLambert-St Louis
$277
Find similar
Delta
Dec 4
ORD6:10 pmChicago O'Hare Intl
6h 49m
1 stop
PSC10:59 pmPasco Tri Cities
Dec 10
PSC1:00 pmPasco Tri Cities
8h 59m
1 stop
ORD11:59 pmChicago O'Hare Intl
$285
Find similar

Alaska Airlines flights from Illinois to Pasco

Our best Alaska Airlines deals on Illinois to Pasco flight tickets
Alaska Airlines
Dec 5
STL3:23 pmLambert-St Louis
7h 30m
1 stop
PSC8:53 pmPasco Tri Cities
Dec 7
PSC6:00 amPasco Tri Cities
6h 27m
1 stop
STL2:27 pmLambert-St Louis
$363
Find similar
Alaska Airlines
Dec 27
ORD6:00 amChicago O'Hare Intl
20h 17m
1 stop
PSC12:17 amPasco Tri Cities
Jan 4
PSC6:00 amPasco Tri Cities
28h 13m
1 stop
ORD12:13 pmChicago O'Hare Intl
$520
Find similar
Alaska Airlines
Nov 13
ORD10:00 amChicago O'Hare Intl
7h 12m
1 stop
PSC3:12 pmPasco Tri Cities
Nov 15
PSC8:21 amPasco Tri Cities
6h 36m
1 stop
ORD4:57 pmChicago O'Hare Intl
$524
Find similar

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 November 10, 2025.
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

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Thu 12/4

6:15 am-4:23 pm

2 stops12h 08m

Pasco Tri Cities

Tue 12/9

5:44 pm-9:10 am

2 stops13h 26m

$256

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Thu 12/4

2:20 pm-10:59 pm

2 stops10h 39m

Pasco Tri Cities

Sun 12/7

1:00 pm-12:48 am

2 stops9h 48m

$277

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 12/4

6:10 pm-10:59 pm

1 stop6h 49m

Pasco Tri Cities

Wed 12/10

1:00 pm-11:59 pm

1 stop8h 59m

$285

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 12/4

6:00 am-4:23 pm

2 stops12h 23m

Pasco Tri Cities

Wed 12/10

1:00 pm-11:59 pm

1 stop8h 59m

$290

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Tue 3/10

3:54 pm-8:55 pm

1 stop7h 01m

Pasco Tri Cities

Wed 3/11

12:56 pm-11:56 pm

1 stop9h 00m

$304

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Thu 12/4

1:16 pm-2:22 pm

1 stop27h 06m

Pasco Tri Cities

Sun 12/7

3:14 pm-8:59 am

2 stops15h 45m

$310

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Fri 12/5

3:23 pm-8:53 pm

1 stop7h 30m

Pasco Tri Cities

Sun 12/7

6:00 am-2:27 pm

1 stop6h 27m

$363

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Thu 12/4

4:21 pm-2:22 pm

3 stops24h 01m

Pasco Tri Cities

Wed 12/10

11:48 am-8:09 pm

3 stops30h 21m

$482

ChicagoPasco

ORD - PSC

ORDPSC

Chicago O'Hare Intl

Sat 12/27

6:00 am-12:17 am

1 stop20h 17m

Pasco Tri Cities

Sun 1/4

6:00 am-12:13 pm

1 stop28h 13m

$520

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Tue 11/25

2:29 pm-9:06 pm

1 stop8h 37m

Pasco Tri Cities

Sat 11/29

5:05 am-1:40 pm

1 stop6h 35m

$794

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 day to depart on your flight to Pasco?

The cheapest day to depart from Illinois to Pasco is on a Saturday. Travelers who choose to depart for Pasco on a Saturday will often find tickets for as low as $367. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Pasco on Tuesday is $561.

What is the cheapest time of day to depart on your flight to Pasco?

The cheapest time of day to fly to Pasco is in the afternoon when flights can be purchased for as low as $404. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $507 on average. Flights to Pasco from Illinois at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Illinois to Pasco flights?

You could potentially save up to 46% 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

Direct flights

None
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
DeltaPriceFrom $278Free CancellationRating
7.9
8,004 reviews
Search Delta flights
Alaska AirlinesPriceFrom $337Free CancellationRating
8.0
11,259 reviews
Search Alaska 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.

An easier way to manage your Pasco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 12/10
Wed 12/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States