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$207+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$437
(Alaska Airlines)

One-way from

$207
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$658
From Kona Intl to Illinois
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One-way flight from Kona Intl to Illinois
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Highest demand for flights based on searches. 23% potential increase in price ($230 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 8/289:32 pmKOA - STL
1 stop12h 07mAlaska Airlines
Tue 9/26:00 amSTL - KOA
2 stops16h 43mAlaska Airlines
Deal found 6/10$437
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:40 pmKOA - STL
2 stops14h 07mAmerican Airlines
Fri 9/57:55 amSTL - KOA
1 stop11h 30mAmerican Airlines
Deal found 6/12$486
This Delta deal was found by Cheapflights users on 6/10. 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.
Sun 8/249:47 pmKOA - STL
2 stops15h 00mDelta
Thu 9/46:00 amSTL - KOA
2 stops18h 00mDelta
Deal found 6/10$556
This United Airlines deal was found by Cheapflights users on 6/10. 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 8/287:40 pmKOA - STL
2 stops15h 04mUnited Airlines
Wed 9/39:17 amSTL - KOA
2 stops15h 07mUnited Airlines
Deal found 6/10$572
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 7/308:00 amKOA - ORD
1 stop10h 59mAlaska Airlines
Wed 8/67:18 pmORD - KOA
1 stop19h 12mAlaska Airlines
Deal found 6/11$621
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 7/299:45 pmKOA - ORD
1 stop18h 13mAmerican Airlines
Wed 8/66:00 amORD - KOA
1 stop12h 29mAmerican Airlines
Deal found 6/10$681
This Delta deal was found by Cheapflights users on 6/10. 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 6/119:05 pmKOA - ORD
1 stop11h 18mDelta
Mon 6/167:09 amORD - KOA
1 stop15h 24mDelta
Deal found 6/10$683
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 6/138:00 amKOA - ORD
1 stop10h 59mHawaiian Airlines
Tue 7/221:03 pmORD - KOA
1 stop14h 01mHawaiian Airlines
Deal found 6/11$702
This United Airlines deal was found by Cheapflights users on 6/12. 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 6/2710:15 pmKOA - ORD
1 stop19h 44mUnited Airlines
Tue 7/13:54 pmORD - KOA
1 stop24h 37mUnited Airlines
Deal found 6/12$833
This Delta deal was found by Cheapflights users on 6/11. 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 6/118:25 pmKOA - MDW
2 stops16h 15mDelta
Mon 6/169:24 amMDW - KOA
2 stops14h 35mDelta
Deal found 6/11$934

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 June 12, 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

Thu 8/28

9:32 pm-2:39 pm

1 stop12h 07m

Lambert-St Louis

Tue 9/2

6:00 am-5:43 pm

2 stops16h 43m

$437

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Mon 8/25

9:40 pm-4:47 pm

2 stops14h 07m

Lambert-St Louis

Fri 9/5

7:55 am-2:25 pm

1 stop11h 30m

$486

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Sun 8/24

9:47 pm-5:47 pm

2 stops15h 00m

Lambert-St Louis

Thu 9/4

6:00 am-7:00 pm

2 stops18h 00m

$556

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 8/28

7:40 pm-3:44 pm

2 stops15h 04m

Lambert-St Louis

Wed 9/3

9:17 am-7:24 pm

2 stops15h 07m

$572

Kailua-KonaChicago

KOA - ORD

KOAORD

Kona Intl

Wed 7/30

8:00 am-11:59 pm

1 stop10h 59m

Chicago O'Hare Intl

Wed 8/6

7:18 pm-9:30 am

1 stop19h 12m

$621

Kailua-KonaChicago

KOA - ORD

KOAORD

Kona Intl

Tue 7/29

9:45 pm-8:58 pm

1 stop18h 13m

Chicago O'Hare Intl

Wed 8/6

6:00 am-1:29 pm

1 stop12h 29m

$681

Kailua-KonaChicago

KOA - ORD

KOAORD

Kona Intl

Wed 6/25

9:40 pm-1:23 pm

1 stop10h 43m

Chicago O'Hare Intl

Sun 6/29

7:09 am-5:33 pm

1 stop15h 24m

$687

Kailua-KonaChicago

KOA - ORD

KOAORD

Kona Intl

Fri 6/27

10:15 pm-10:59 pm

1 stop19h 44m

Chicago O'Hare Intl

Tue 7/1

3:54 pm-11:31 am

1 stop24h 37m

$833

Kailua-KonaChicago

KOA - MDW

KOAMDW

Kona Intl

Fri 8/8

8:35 pm-5:10 pm

2 stops15h 35m

Chicago Midway

Fri 8/22

9:15 am-7:00 pm

2 stops14h 45m

$944

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 10/23

1:52 pm-7:56 am

2 stops13h 04m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 22 results
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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 June 12, 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.

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 June 12, 2025.
Read through reviews of airlines operating flights from Kailua-Kona to Illinois, such as Alaska Airlines, Southwest and Delta. 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

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $207. Users have also found prices from $247 and $263 on Southwest and Alaska Airlines, 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 - Lambert-St Louis and Kona Intl - Chicago Midway.

  • 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

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Kailua-Kona to Illinois

Discover the top 4 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$223Average$603FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$418Average$600FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$419Average$623FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$429Average$760FlexibilityNo cancel feeOn-time69%

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