$188 Find Cheap Flights from Pasco to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Pasco to Illinois departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Pasco to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Pasco to Illinois, as well as popular online travel agencies
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Cheap Flights from Pasco to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$279
St. Louis
St. Louis1 stop$362
Chicago
Chicago1 stop$279
St. Louis
St. Louis1 stop$362

Book Cheap Pasco to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Pasco to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Pasco to Illinois

Wed, Aug 27 - Sat, Aug 30
Delta Logo
11:45 am - 10:04 pmPSC-ORD
8h 19m1 stop
Delta Logo
6:24 pm - 10:27 pmORD-PSC
6h 03m1 stop
$279Delta
Find Deal
Wed, Aug 27 - Sat, Aug 30
Delta Logo
6:20 am - 10:04 pmPSC-ORD
13h 44m2 stops
Delta Logo
6:24 pm - 10:27 pmORD-PSC
6h 03m1 stop
$284Delta
Find Deal
Wed, Oct 22 - Sun, Oct 26
Alaska Airlines Logo
8:44 am - 11:59 pmPSC-ORD
13h 15m1 stop
Alaska Airlines Logo
6:00 am - 8:51 pmORD-PSC
16h 51m1 stop
$348Alaska Airlines
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Fri, Sep 19 - Mon, Sep 22
Hawaiian Airlines Logo
7:57 pm - 7:03 amPSC-ORD
9h 06m1 stop
Hawaiian Airlines Logo
5:45 pm - 12:08 amORD-PSC
8h 23m1 stop
$352Hawaiian Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
Hawaiian Airlines Logo
1:05 pm - 11:59 pmPSC-STL
8h 54m1 stop
Hawaiian Airlines Logo
6:30 pm - 12:08 amSTL-PSC
7h 38m1 stop
$362Hawaiian Airlines
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Mon, Sep 22 - Sun, Sep 28
Alaska Airlines Logo
1:05 pm - 7:03 amPSC-ORD
15h 58m1 stop
Alaska Airlines Logo
8:00 am - 9:15 pmORD-PSC
15h 15m1 stop
$369Alaska Airlines
Find Deal
Mon, Sep 1 - Fri, Oct 24
American Airlines Logo
2:55 pm - 12:16 amPSC-STL
7h 21m1 stop
American Airlines Logo
6:21 pm - 11:32 pmSTL-PSC
7h 11m1 stop
$417American Airlines
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Wed, Aug 13 - Sun, Aug 17
American Airlines Logo
5:00 am - 3:54 pmPSC-ORD
8h 54m1 stop
American Airlines Logo
4:45 pm - 11:28 pmORD-PSC
8h 43m1 stop
$486American Airlines
Find Deal
Wed, Dec 17 - Wed, Dec 31
United Airlines Logo
5:04 am - 10:45 pmPSC-STL
15h 41m2 stops
United Airlines Logo
2:45 pm - 9:08 pmSTL-PSC
8h 23m1 stop
$566United Airlines
Find Deal
Tue, Dec 16 - Wed, Dec 31
United Airlines Logo
6:20 am - 8:57 pmPSC-STL
12h 37m2 stops
United Airlines Logo
6:30 am - 9:35 pmSTL-PSC
17h 05m2 stops
$574United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Pasco to Illinois flights

Get data-powered insights and trends into flights from Pasco to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Pasco to Illinois?

What is the cheapest month to fly from Pasco to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Pasco to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Pasco to Illinois is February, when tickets cost $346 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $772 and $677 respectively.

What’s the cheapest day of the week to fly from Pasco to Illinois?

The average price of all round-trip flights from Pasco to Illinois clicked on KAYAK for each day over the last 12 months.

For Pasco to Illinois, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Illinois back to Pasco, the best deals are generally found on Saturday, with Tuesday being the most expensive.


Good to know

Low seasonJune
Cheapest flight$188
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Pasco to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Pasco to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pasco to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pasco to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Pasco to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Pasco to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Pasco to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pasco to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Pasco to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $465 on average. Morning departures are around 8% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $541.

Reviews of the top airlines flying from Pasco to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Pasco to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Pasco to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
8.5Crew
8.1Boarding
7.1Entertainment
7.8Comfort
7.1Food
Airline reviews

I was in the middle seat in the last row but that wasn’t their fault. It is why I rated the flight as mediocre, also the landing was a little rough. The good was really good. The self service luggage belt at SEATAC stopped working right when I reached it. I was literally placing my bag on the small belt when the main belt stopped. I understand that it wasn’t just Alaska but the entire side of the terminal. It took the agents about 20 minutes to arrive at a game plan and it certainly wasn’t flawless but they arranged for our luggage to be taken to the plane the old fashioned way by hand. Understandably, the plane was late in leaving. The flight took the proper amount of time and instead of arriving at OAK at 1:45, we got there at 2:30. I took my time getting to baggage claim because I knew it would be late if it was there at all. Sure enough it wasn’t but there was an agent there to greet me and inform me about my luggage. Long story longer, they delivered my luggage to where I was staying which was an hour away from the airport. Alaska has instituted a delivery type tracking system through my email that kept me informed of where my luggage was the whole time. WELL DONE!!

8.0 ExcellentMichael, Jul 2025SEA - OAK
Read more Alaska Airlines reviews

I was in the middle seat in the last row but that wasn’t their fault. It is why I rated the flight as mediocre, also the landing was a little rough. The good was really good. The self service luggage belt at SEATAC stopped working right when I reached it. I was literally placing my bag on the small belt when the main belt stopped. I understand that it wasn’t just Alaska but the entire side of the terminal. It took the agents about 20 minutes to arrive at a game plan and it certainly wasn’t flawless but they arranged for our luggage to be taken to the plane the old fashioned way by hand. Understandably, the plane was late in leaving. The flight took the proper amount of time and instead of arriving at OAK at 1:45, we got there at 2:30. I took my time getting to baggage claim because I knew it would be late if it was there at all. Sure enough it wasn’t but there was an agent there to greet me and inform me about my luggage. Long story longer, they delivered my luggage to where I was staying which was an hour away from the airport. Alaska has instituted a delivery type tracking system through my email that kept me informed of where my luggage was the whole time. WELL DONE!!

Crew was very friendly. Our bags showed up at the carousel within 20 minutes of arrival.

Flight was delayed and hour due to tire issue. First flight of the day, this issue should have been discovered prior to boarding.

Both legs of the trip were delayed about an hour. Planes were new, liked the WiFi availability and entertainment available. Crew was very good. People were happy and helpful. Liked the pilots - they provided updates throughout the flights. Snacks were underwhelming. Drinks were good! Like the smaller sodas and they actually came through the cabin 2x which was great. In Seattle airport the construction caused much confusion for Alaska. Process of printing own tags, etc was chaotic for people who didn’t check in online prior to arrival which in turn caused issues for those who did. Plus airport gates were too small for the number of people flying.

We did have to wait an hour for the runway to be cleared but other than that it was fine.

My seat row didn’t have tray tables which made it pretty difficult to get comfortable on a four hour flight. Good experience outside of that, though.

There was no sitting place in Sea-Tac airport. Even airline didn’t provide any food or dinner. I will never take this airline in my future travel.

Crew was very rude and uncaring. When someone tried to place their bag in overhead bin and they asked for help, crew told them they could not assist. Crew member then told the customer if they couldn’t place into overhead bin on their own, they should have checked in bag. When other customer helped to place the bag in the overhead bin, they were given evil look by crew member and told to hurry back to their uncomfortable middle seat. This was despite the fact that the plane did not leave until 30 minutes later. The flight was ~80% full; when final people boarded, they were forced into middle seats with no room for comfort. There were a handful of emergency row seats unoccupied. When asked if any of the emergency row seats may be used, the crew said that they would cost extra. Normally if a flight is completely boarded and there are open seats, the crew at least gives thought to asking someone if they want to re-locate to the more comfortable seat, especially on a long flight.

I am always uncomfortable about the boarding process. I think every airlines has their own procedures for boarding but all of their procedures are inconvenient because it takes too much time to board. If you board people from back seat to front, I think you can reduce the time to boarding.

Our original fluffy was cancelled. Our substitute flight didn't fly. We lost out on our hotel and car rental. Had to fly out the next morning. Alaska didn't give us any meaningful information. The first flight was scheduled to leave at 4pm and the substitute flight at 9pm. We left the airport at midnight for a hotel. No weather. Beyond disappointed.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

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