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Hilo

$346+ Cheap flights from Illinois to Hilo (ITO)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ITO
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Illinois to Hilo

Cheapest flights from Illinois to Hilo
Explore the most affordable flight options available from Illinois to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Delta deal was found by Cheapflights users on 12/15. 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.
Wed 12/316:45 amORD - ITO
2 stops15h 06mDelta
Thu 1/11:44 pmITO - ORD
2 stops21h 29mDelta
Deal found 12/15$1,150
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/232:45 pmSTL - ITO
2 stops56h 29mUnited Airlines
Tue 12/306:44 pmITO - STL
2 stops14h 36mUnited Airlines
Deal found 12/16$1,205
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:20 amORD - ITO
1 stop12h 31mUnited Airlines
Tue 1/67:44 pmITO - ORD
2 stops23h 30mUnited Airlines
Deal found 12/15$1,212
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 amORD - ITO
2 stops16h 59mUnited Airlines
Tue 1/67:44 pmITO - ORD
2 stops23h 30mUnited Airlines
Deal found 12/15$1,222
This Delta deal was found by Cheapflights users on 12/15. 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.
Wed 12/316:45 amORD - ITO
2 stops15h 06mDelta
Mon 1/54:40 pmITO - ORD
2 stops16h 42mDelta
Deal found 12/15$1,232
This Alaska Airlines deal was found by Cheapflights users on 12/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:00 amORD - ITO
2 stops15h 14mMultiple Airlines
Wed 12/317:44 pmITO - ORD
2 stops14h 53mMultiple Airlines
Deal found 12/15$1,243
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:20 amORD - ITO
1 stop12h 31mUnited Airlines
Wed 12/317:44 pmITO - ORD
2 stops13h 35mUnited Airlines
Deal found 12/15$1,252
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/196:00 amORD - ITO
2 stops15h 51mMultiple Airlines
Sun 12/289:00 pmITO - ORD
2 stops13h 37mMultiple Airlines
Deal found 12/16$1,255
This Delta deal was found by Cheapflights users on 12/15. 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.
Mon 12/296:00 amORD - ITO
2 stops17h 59mDelta
Wed 12/317:44 pmITO - ORD
2 stops24h 15mDelta
Deal found 12/15$1,276
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:23 pmORD - ITO
2 stops25h 51mUnited Airlines
Tue 1/67:44 pmITO - ORD
2 stops23h 30mUnited Airlines
Deal found 12/15$1,284
This Delta deal was found by Cheapflights users on 12/15. 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.
Mon 12/296:00 amORD - ITO
2 stops17h 59mDelta
Tue 1/62:59 pmITO - ORD
2 stops18h 23mDelta
Deal found 12/15$1,296
This Delta deal was found by Cheapflights users on 12/15. 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.
Mon 12/296:00 amORD - ITO
2 stops17h 59mDelta
Mon 1/54:40 pmITO - ORD
2 stops16h 42mDelta
Deal found 12/15$1,304

Find flight deals from Illinois to Hilo

Keep the following information in mind while searching for Illinois to Hilo flight deals. Data was last updated December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$395
(Alaska Airlines)

One-way from

$346
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,253
Provider with most accurate pricing for Chicago (CHI)-Hilo Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Hilo Intl flights.
Search Deals
From Illinois to Hilo Intl
Search Deals
One-way flight from Illinois to Hilo Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Hilo 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 December 18, 2025.
Use the filters below to find and compare flights from Illinois to Hilo that are best for you.

Fly from

Illinois

Fly to

Hilo

Route

Depart

Return

Price

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Tue 2/24

8:20 am-9:24 pm

2 stops17h 04m

Hilo Intl

Tue 3/3

8:30 pm-11:59 pm

2 stops23h 29m

$395

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Tue 2/24

8:20 am-9:24 pm

2 stops17h 04m

Hilo Intl

Wed 3/4

6:44 pm-2:58 pm

2 stops16h 14m

$404

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Wed 1/21

9:00 am-9:24 pm

2 stops16h 24m

Hilo Intl

Mon 1/26

11:11 am-2:29 pm

2 stops23h 18m

$413

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Tue 3/3

8:20 am-9:24 pm

2 stops17h 04m

Hilo Intl

Tue 3/10

8:30 pm-2:58 pm

2 stops13h 28m

$427

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Wed 2/25

8:20 am-9:24 pm

2 stops17h 04m

Hilo Intl

Tue 3/3

7:41 pm-11:59 pm

2 stops24h 18m

$427

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Sat 1/24

3:44 pm-8:29 pm

2 stops32h 45m

Hilo Intl

Sat 1/31

6:00 am-11:37 pm

2 stops13h 37m

$456

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Thu 1/8

9:00 am-9:24 pm

2 stops16h 24m

Hilo Intl

Tue 1/13

6:44 pm-2:29 pm

2 stops15h 45m

$470

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Sun 5/10

9:00 am-8:20 pm

2 stops16h 20m

Hilo Intl

Mon 5/18

5:30 pm-1:54 pm

2 stops15h 24m

$504

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Tue 2/24

8:20 am-9:24 pm

2 stops17h 04m

Hilo Intl

Fri 3/6

6:00 am-11:56 pm

2 stops13h 56m

$515

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Thu 2/26

8:20 am-9:24 pm

2 stops17h 04m

Hilo Intl

Mon 3/2

8:30 pm-2:58 pm

2 stops14h 28m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 44 results
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Best time to book a flight from Illinois to Hilo

Have a flexible travel schedule? Discover the best time to fly to Hilo 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 Hilo

What is the cheapest month to book a flight from Illinois to Hilo?

Currently, March is the cheapest month in which you can book a flight from Illinois to Hilo (average of $422). Flying from Illinois to Hilo in July is currently the most expensive (average of $667). 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 ITO?

Find hourly flight availability from Illinois to Hilo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s typically best to fly out from Illinois to Hilo in the morning. Doing so could potentially save you 50% on the flight price compared to flying in the afternoon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Hilo. 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 Hilo from Illinois?

    Located just 3.0 mi from the city center, Hilo Intl (ITO) is the airport most travelers will use when flying to Hilo from Illinois.

  • How long is the flight from Illinois to Hilo?

    Airlines like Southwest, United Airlines, and Delta fly from Illinois to Hilo in about 15h. The time it takes to get you to your destination can typically vary by up to 2h 15m. The distance between Illinois and Hilo is about 4162 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Illinois to Hilo?

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

  • Can I find deals for flights from Illinois to Hilo that include hotel bookings?

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

  • How can I find direct flights from Illinois to Hilo?

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

  • Can I find deals for business class flights from Illinois to Hilo?

    Yes. Cheapflights offers flight deals from Illinois to Hilo 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 Hilo?

    Currently, March is the cheapest month in which you can book a flight from Illinois to Hilo (average of $422). Flying from Illinois to Hilo in July is currently the most expensive (average of $667). 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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Top 3 airlines flying from Illinois to Hilo

Discover the top 3 airlines that operate flights from Illinois to Hilo. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$553Average$876FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$598Average$768FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$887Average$1,287FlexibilityNo cancel feeOn-time69%

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