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$261+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — ORD
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
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Cheap flight deals from Kailua-Kona to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Kailua-Kona (KOA) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 20, 2025.

Round-trip from

$421
(United Airlines)

One-way from

$261
(American Airlines)
From Kona Intl to Illinois
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One-way flight from Kona Intl to Illinois
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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 January 20, 2025.

This United Airlines deal was found by Cheapflights users on 1/20. 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 2/48:55 pmKOA - STL
1 stop11h 53mUnited Airlines
Sat 2/88:27 amSTL - KOA
1 stop12h 34mUnited Airlines
Deal found 1/20$421
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/49:40 pmKOA - STL
2 stops14h 40mAmerican Airlines
Sat 2/87:00 amSTL - KOA
2 stops16h 50mAmerican Airlines
Deal found 1/20$452
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/139:45 pmKOA - ORD
1 stop12h 01mAmerican Airlines
Sat 2/229:50 amORD - KOA
1 stop14h 22mAmerican Airlines
Deal found 1/20$465
This Delta deal was found by Cheapflights users on 1/20. 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 4/228:30 pmKOA - ORD
1 stop12h 01mDelta
Wed 4/307:30 amORD - KOA
1 stop15h 12mDelta
Deal found 1/20$509
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 4/229:00 pmKOA - ORD
2 stops16h 20mAlaska Airlines
Wed 4/306:00 amORD - KOA
2 stops14h 24mAlaska Airlines
Deal found 1/20$546
This Delta deal was found by Cheapflights users on 1/19. 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 3/188:20 pmKOA - STL
2 stops21h 43mDelta
Tue 3/255:00 pmSTL - KOA
2 stops30h 55mDelta
Deal found 1/19$595
This Delta deal was found by Cheapflights users on 1/19. 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 4/229:30 pmKOA - MDW
2 stops14h 33mDelta
Wed 4/309:30 amMDW - KOA
2 stops14h 09mDelta
Deal found 1/19$619
This Southwest deal was found by Cheapflights users on 1/19. 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.
Sun 3/1610:00 amKOA - STL
2 stops18h 20mSouthwest
Thu 3/206:50 amSTL - KOA
2 stops15h 35mSouthwest
Deal found 1/19$684
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 3/138:00 amKOA - STL
1 stop10h 59mAlaska Airlines
Mon 3/243:11 pmSTL - KOA
1 stop12h 19mAlaska Airlines
Deal found 1/19$688
This Southwest deal was found by Cheapflights users on 1/19. 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.
Mon 1/206:10 amKOA - ORD
2 stops12h 55mSouthwest
Thu 1/235:45 amORD - KOA
1 stop14h 05mSouthwest
Deal found 1/19$694
This Hawaiian Airlines deal was found by Cheapflights users on 1/19. 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.
Mon 1/209:00 amKOA - ORD
1 stop10h 59mHawaiian Airlines
Thu 1/237:45 amORD - KOA
1 stop12h 40mHawaiian Airlines
Deal found 1/19$703
This Southwest deal was found by Cheapflights users on 1/19. 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 5/138:30 pmKOA - MDW
1 stop11h 30mSouthwest
Thu 5/158:00 amMDW - KOA
2 stops15h 10mSouthwest
Deal found 1/19$753

Find flights from Kailua-Kona to Illinois within your budget

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 January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 2/4

8:55 pm-12:48 pm

1 stop11h 53m

Lambert-St Louis

Sat 2/8

8:27 am-5:01 pm

1 stop12h 34m

$421

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 2/4

9:40 pm-4:20 pm

2 stops14h 40m

Lambert-St Louis

Sat 2/8

7:00 am-7:50 pm

2 stops16h 50m

$452

Kailua-KonaChicago

KOA - ORD

KOAORD

Kona Intl

Thu 2/13

9:45 pm-1:46 pm

1 stop12h 01m

Chicago O'Hare Intl

Sat 2/22

9:50 am-8:12 pm

1 stop14h 22m

$465

Kailua-KonaChicago

KOA - ORD

KOAORD

Kona Intl

Tue 4/22

8:30 pm-1:31 pm

1 stop12h 01m

Chicago O'Hare Intl

Wed 4/30

7:30 am-5:42 pm

1 stop15h 12m

$509

Kailua-KonaChicago

KOA - ORD

KOAORD

Kona Intl

Tue 4/22

9:00 pm-6:20 pm

2 stops16h 20m

Chicago O'Hare Intl

Wed 4/30

6:00 am-3:24 pm

2 stops14h 24m

$546

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 3/18

8:20 pm-11:03 pm

2 stops21h 43m

Lambert-St Louis

Tue 3/25

5:00 pm-6:55 pm

2 stops30h 55m

$595

Kailua-KonaChicago

KOA - MDW

KOAMDW

Kona Intl

Tue 4/22

9:30 pm-5:03 pm

2 stops14h 33m

Chicago Midway

Wed 4/30

9:30 am-6:39 pm

2 stops14h 09m

$619

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Sun 3/16

10:00 am-9:20 am

2 stops18h 20m

Lambert-St Louis

Thu 3/20

6:50 am-5:25 pm

2 stops15h 35m

$684

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 3/13

8:00 am-11:59 pm

1 stop10h 59m

Lambert-St Louis

Mon 3/24

3:11 pm-10:30 pm

1 stop12h 19m

$688

Kailua-KonaChicago

KOA - MDW

KOAMDW

Kona Intl

Tue 5/13

8:30 pm-1:00 pm

1 stop11h 30m

Chicago Midway

Thu 5/15

8:00 am-6:10 pm

2 stops15h 10m

$753

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 26 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.

Travel insights for flights from Kailua-Kona to Illinois

Get recent, data-driven insights about flights from Kailua-Kona to Illinois including ideal travel times, pricing trends, and more.

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 $320). 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 January 20, 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 January 20, 2025.
Read through reviews of airlines operating flights from Kailua-Kona to Illinois, such as American Airlines, United Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,696 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Hawaiian Airlines
7.9
Good
2,334 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 $261. Users have also found prices from $274 and $292 on United Airlines and Delta, 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.

  • What are the cheapest flights from Kailua-Kona to Illinois?

    On average you can expect to pay $513 for a flight from Kailua-Kona to Illinois. The cheapest flight overall is $289 while the most popular route, (Kona Intl - Chicago O'Hare Intl) is currently priced at $435.

  • 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 $320). 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.

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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 January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$220Average$560FlexibilityNo cancel feeOn-time75%
DeltaCheapest$222Average$491FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$392Average$677FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$399Average$581FlexibilityNo cancel feeOn-time71%
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