Kailua-Kona

$337+ Cheap flights from Illinois to Kailua-Kona (KOA)

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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KOA
Jul 11 — Jul 181
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Cheap flight deals from Illinois to Kailua-Kona

Cheapest flights from Illinois to Kailua-Kona
Explore the most affordable flight options available from Illinois to Kailua-Kona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.

This United Airlines deal was found by Cheapflights users on 6/9. 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 11/39:13 am
STL
-
KOA
1 stop11h 28m
United Airlines
Wed 11/118:30 pm
KOA
-
STL
1 stop12h 13m
United Airlines
Deal found 6/9$360
This Delta deal was found by Cheapflights users on 6/9. 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 9/107:30 am
STL
-
KOA
2 stops16h 04m
Delta
Thu 9/179:03 pm
KOA
-
STL
2 stops17h 41m
Delta
Deal found 6/9$415
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:30 am
STL
-
KOA
1 stop11h 30m
Southwest
Wed 11/119:30 pm
KOA
-
STL
1 stop10h 20m
Southwest
Deal found 6/9$419
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:45 am
MDW
-
KOA
1 stop12h 15m
Southwest
Tue 11/179:30 pm
KOA
-
MDW
1 stop12h 35m
Southwest
Deal found 6/9$434
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 9/96:30 pm
ORD
-
KOA
1 stop29h 04m
Delta
Tue 9/159:55 pm
KOA
-
ORD
1 stop20h 26m
Delta
Deal found 6/10$440
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.
Tue 11/32:55 pm
ORD
-
KOA
1 stop32h 44m
Delta
Tue 11/109:40 pm
KOA
-
ORD
2 stops19h 54m
Delta
Deal found 6/10$446
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 9/96:30 pm
ORD
-
KOA
1 stop29h 04m
Delta
Sun 9/209:55 pm
KOA
-
ORD
1 stop14h 38m
Delta
Deal found 6/10$456
This Delta deal was found by Cheapflights users on 6/9. 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 10/206:30 am
STL
-
KOA
2 stops17h 09m
Delta
Fri 10/308:40 pm
KOA
-
STL
2 stops12h 51m
Delta
Deal found 6/9$459
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.
Sat 10/316:00 am
ORD
-
KOA
2 stops17h 39m
Delta
Mon 11/99:40 pm
KOA
-
ORD
1 stop15h 41m
Delta
Deal found 6/10$461
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.
Sun 8/308:00 am
STL
-
KOA
1 stop10h 58m
American Airlines
Sun 9/139:45 pm
KOA
-
STL
1 stop18h 07m
American Airlines
Deal found 6/10$462
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.
Mon 11/27:35 am
ORD
-
KOA
1 stop16h 04m
Delta
Mon 11/99:40 pm
KOA
-
ORD
2 stops16h 17m
Delta
Deal found 6/10$462
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.
Sat 10/316:00 am
ORD
-
KOA
2 stops17h 39m
Delta
Tue 11/109:40 pm
KOA
-
ORD
2 stops19h 54m
Delta
Deal found 6/10$466

Find flight deals from Illinois to Kailua-Kona

Keep the following information in mind while searching for Illinois to Kailua-Kona flight deals. Data was last updated June 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$360
(United Airlines)

One-way from

$337
(Delta)

Popular in

December

Cheapest in

January

Average price

$813
Provider with most accurate pricing for Chicago (CHI)-Kona Intl flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-Kona Intl flights.
From Illinois to Kona Intl
One-way flight from Illinois to Kona Intl
Highest demand for flights based on searches. 1% potential increase in price ($14 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Kailua-Kona 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 11, 2026.
Use the filters below to find and compare flights from Illinois to Kailua-Kona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoKailua-Kona

ORD - KOA

ORDKOA

Chicago O'Hare Intl

Tue 9/8

6:30 pm-6:34 pm

1 stop29h 04m

Kona Intl

Tue 9/15

9:55 pm-5:33 pm

1 stop14h 38m

$471

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Sun 8/30

5:50 am-12:40 pm

1 stop11h 50m

Kona Intl

Sun 8/30

8:35 pm-12:05 pm

1 stop10h 30m

$471

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Thu 8/27

5:55 am-12:40 pm

1 stop11h 45m

Kona Intl

Thu 9/3

8:35 pm-12:05 pm

1 stop10h 30m

$489

ChicagoKailua-Kona

ORD - KOA

ORDKOA

Chicago O'Hare Intl

Tue 8/25

6:00 am-4:29 pm

2 stops15h 29m

Kona Intl

Thu 8/27

10:35 am-1:22 pm

1 stop21h 47m

$519

ChicagoKailua-Kona

ORD - KOA

ORDKOA

Chicago O'Hare Intl

Tue 8/25

6:00 am-5:35 pm

2 stops16h 35m

Kona Intl

Thu 8/27

10:05 pm-6:19 pm

2 stops15h 14m

$525

ChicagoKailua-Kona

ORD - KOA

ORDKOA

Chicago O'Hare Intl

Fri 8/21

2:18 pm-2:48 pm

1 stop29h 30m

Kona Intl

Fri 8/28

10:35 am-1:22 pm

1 stop21h 47m

$593

ChicagoKailua-Kona

ORD - KOA

ORDKOA

Chicago O'Hare Intl

Thu 8/13

7:00 am-5:35 pm

1 stop15h 35m

Kona Intl

Tue 8/18

8:42 pm-1:23 pm

1 stop11h 41m

$594

ChicagoKailua-Kona

ORD - KOA

ORDKOA

Chicago O'Hare Intl

Tue 9/8

7:20 am-2:48 pm

1 stop12h 28m

Kona Intl

Wed 9/16

6:00 am-11:59 pm

2 stops12h 59m

$595

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Mon 8/3

5:37 pm-10:55 am

1 stop22h 18m

Kona Intl

Wed 8/12

1:52 pm-4:37 pm

2 stops21h 45m

$595

ChicagoKailua-Kona

ORD - KOA

ORDKOA

Chicago O'Hare Intl

Fri 8/21

6:01 am-6:17 pm

2 stops17h 16m

Kona Intl

Fri 8/28

10:35 am-1:22 pm

1 stop21h 47m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 49 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Kailua-Kona

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Kailua-Kona (average of $262). Flying from Illinois to Kailua-Kona in June is currently the most expensive (average of $623). 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 IL to KOA?

Find hourly flight availability from Illinois to Kailua-Kona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 11, 2026.

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

How much does it cost to fly round-trip from Illinois to Kailua-Kona?

How far ahead should I book a flight from Illinois to Kailua-Kona?

The best time to book flights from Illinois to Kailua-Kona is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

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

    Most people fly into Kona Intl (KOA) if they book a flight to Kailua-Kona from Illinois. Kona Intl is conveniently located just 7.7 mi from Kailua-Kona’s city center.

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

    Airlines like Delta, Southwest, and Alaska Airlines fly from Illinois to Kailua-Kona in about 11h 50m. The time it takes to get you to your destination can typically vary by up to 17h 14m. The distance from Illinois to Kailua-Kona is about 4080 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $191. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Illinois to Kailua-Kona for a low price.

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

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Kailua-Kona (average of $262). Flying from Illinois to Kailua-Kona in June is currently the most expensive (average of $623). 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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Alternative routes for Illinois to Kailua-Kona

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Illinois to Kailua-Kona

Discover the top 4 airlines that operate flights from Illinois to Kailua-Kona. 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$371Average$605FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$418Average$667FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$447Average$682FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$447Average$876FlexibilityNo cancel feeOn-time69%

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