HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$202+ Cheap flights from Kailua-Kona (KOA) 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — ORD
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kailua-Kona 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 Kailua-Kona to Illinois

Keep the following information in mind while searching for Kailua-Kona to Illinois flight deals. Data was last updated September 15, 2025.

Round-trip from

$439
(Trip.com)

One-way from

$202
(Alaska Airlines)

Popular in

March

Cheapest in

October

Average price

$567
From Kona Intl to Illinois
Search Deals
One-way flight from Kona Intl to Illinois
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($230 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Kailua-Kona to Illinois

Cheapest flights from Kailua-Kona to Illinois
Explore the most affordable flight options available from Kailua-Kona to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 9/261:40 pmKOA - ORD
1 stop11h 18mUnited Airlines
Mon 9/297:10 amORD - KOA
1 stop13h 36mUnited Airlines
Deal found 9/12$457
This Delta deal was found by Cheapflights users on 9/14. 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 9/238:44 pmKOA - STL
2 stops15h 01mDelta
Thu 10/26:00 amSTL - KOA
2 stops16h 35mDelta
Deal found 9/14$613
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/91:40 pmKOA - ORD
1 stop11h 18mUnited Airlines
Sun 10/128:49 amORD - KOA
1 stop11h 36mUnited Airlines
Deal found 9/13$635
This American Airlines deal was found by Cheapflights users on 9/14. 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 9/189:55 pmKOA - ORD
1 stop13h 03mAmerican Airlines
Tue 9/306:55 amORD - KOA
1 stop11h 47mAmerican Airlines
Deal found 9/14$643
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/2311:47 amKOA - STL
2 stops16h 39mAlaska Airlines
Thu 10/26:30 pmSTL - KOA
1 stop21h 46mAlaska Airlines
Deal found 9/14$647
This Delta deal was found by Cheapflights users on 9/14. 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 9/189:30 pmKOA - ORD
2 stops16h 00mDelta
Tue 9/307:10 amORD - KOA
1 stop15h 19mDelta
Deal found 9/14$648
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 9/188:10 amKOA - ORD
2 stops15h 50mAlaska Airlines
Tue 9/306:20 amORD - KOA
2 stops16h 08mAlaska Airlines
Deal found 9/13$654
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 10/96:00 amKOA - ORD
2 stops12h 59mAlaska Airlines
Sun 10/126:00 amORD - KOA
1 stop20h 40mAlaska Airlines
Deal found 9/13$694
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/237:40 pmKOA - STL
1 stop12h 03mUnited Airlines
Thu 10/21:40 pmSTL - KOA
1 stop30h 45mUnited Airlines
Deal found 9/14$724
This Delta deal was found by Cheapflights users on 9/15. 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 10/98:30 pmKOA - ORD
2 stops15h 40mDelta
Sun 10/126:08 amORD - KOA
2 stops18h 15mDelta
Deal found 9/15$814
This Delta deal was found by Cheapflights users on 9/14. 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 9/1811:46 amKOA - MDW
2 stops15h 54mDelta
Tue 9/309:35 amMDW - KOA
2 stops13h 00mDelta
Deal found 9/14$854
This Delta deal was found by Cheapflights users on 9/15. 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 10/98:30 pmKOA - MDW
2 stops16h 13mDelta
Sun 10/126:00 amMDW - KOA
2 stops18h 12mDelta
Deal found 9/15$1,081

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kailua-Kona 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 September 15, 2025.
Use the filters below to find and compare flights from Kailua-Kona to Illinois that are best for you.

Fly from

Kailua-Kona

Fly to

Illinois

Route

Depart

Return

Price

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Fri 1/16

10:00 pm-1:52 pm

1 stop11h 52m

Lambert-St Louis

Tue 1/20

2:55 pm-10:35 pm

1 stop11h 40m

$441

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Fri 1/16

10:00 pm-1:52 pm

1 stop11h 52m

Lambert-St Louis

Wed 1/21

2:55 pm-10:35 pm

1 stop11h 40m

$441

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 1/15

5:15 pm-1:52 pm

2 stops16h 37m

Lambert-St Louis

Tue 1/20

2:55 pm-10:35 pm

1 stop11h 40m

$446

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 1/15

6:00 pm-1:52 pm

2 stops15h 52m

Lambert-St Louis

Wed 1/21

2:55 pm-10:35 pm

1 stop11h 40m

$446

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 1/13

4:08 pm-1:52 pm

2 stops17h 44m

Lambert-St Louis

Tue 1/20

2:55 pm-10:35 pm

1 stop11h 40m

$447

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 1/14

8:45 pm-4:05 pm

2 stops15h 20m

Lambert-St Louis

Wed 1/21

6:30 am-6:00 pm

2 stops15h 30m

$452

Kailua-KonaChicago

KOA - ORD

KOAORD

Kona Intl

Fri 9/26

1:40 pm-5:58 am

1 stop11h 18m

Chicago O'Hare Intl

Mon 9/29

7:10 am-3:46 pm

1 stop13h 36m

$457

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 1/13

10:00 pm-1:52 pm

1 stop11h 52m

Lambert-St Louis

Fri 1/23

2:55 pm-10:35 pm

1 stop11h 40m

$461

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 1/13

10:00 pm-1:52 pm

1 stop11h 52m

Lambert-St Louis

Thu 1/22

2:55 pm-10:35 pm

1 stop11h 40m

$461

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Mon 1/12

10:00 pm-1:52 pm

1 stop11h 52m

Lambert-St Louis

Wed 1/21

2:55 pm-10:35 pm

1 stop11h 40m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 40 results
1
2
3
4

Best time to book a flight from Kailua-Kona to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Kailua-Kona 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 Kailua-Kona to Illinois

What is the cheapest month to book a flight from Kailua-Kona to Illinois?

Currently, August is the cheapest month in which you can book a flight from Kailua-Kona to Illinois (average of $245). Flying from Kailua-Kona to Illinois in March is currently the most expensive (average of $321). 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 KOA to IL?

Find hourly flight availability from Kailua-Kona 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kailua-Kona to Illinois as you normally would.

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 September 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, United Airlines, and American Airlines from Kailua-Kona to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,931 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Kailua-Kona 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 Kailua-Kona to Illinois?

    If you book a flight to Illinois from Kailua-Kona, you will be flying from Kona Intl, which is the city’s only airport. Kona Intl (KOA) is located 7.7 mi from the center of Kailua-Kona.

  • How long is the flight from Kailua-Kona to Illinois?

    A quick flight from Kailua-Kona to Illinois can take about 11h 18m. Alaska Airlines provides one of the quickest options available for as low as $457. There are 4205 mi between Kailua-Kona and Illinois. This flight may include one or multiple stops.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $202. Users have also found prices from $224 and $262 on American Airlines and Southwest, respectively.

  • What are the most popular routes from Kailua-Kona to Illinois?

    The most popular flight routes from Kailua-Kona to Illinois are Kona Intl - Chicago O'Hare Intl, Kona Intl - Chicago Midway and Kona Intl - Lambert-St Louis.

  • Can I find deals for flights from Kailua-Kona to Illinois that include hotel bookings?

    Yes. In addition to deals on Kailua-Kona to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kailua-Kona to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kailua-Kona to Illinois.

  • Can I find deals for business class flights from Kailua-Kona to Illinois?

    Yes. Cheapflights offers flight deals from Kailua-Kona 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 Kailua-Kona to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Kailua-Kona to Illinois (average of $245). Flying from Kailua-Kona to Illinois in March is currently the most expensive (average of $321). 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 Kailua-Kona to Illinois

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

Top 3 airlines flying from Kailua-Kona to Illinois

Discover the top 3 airlines that operate flights from Kailua-Kona 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$429Average$635FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$458Average$631FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$545Average$726FlexibilityNo cancel feeOn-time71%

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.