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Hilo

$223+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ITO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Illinois to Hilo

Keep the following information in mind while searching for Illinois to Hilo flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$432
(Alaska Airlines)

One-way from

$223
(Alaska Airlines)

Popular in

June

Cheapest in

November

Average price

$769
Provider with most accurate pricing for Chicago (CHI)-Hilo Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Hilo Intl flights.
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From Illinois to Hilo Intl
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One-way flight from Illinois to Hilo Intl
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Highest demand for flights based on searches. 13% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 12/43:05 pmORD - ITO
2 stops28h 12mAlaska Airlines
Mon 12/87:44 pmITO - ORD
2 stops14h 25mAlaska Airlines
Deal found 10/30$432
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 12/38:00 amORD - ITO
2 stops17h 16mAlaska Airlines
Mon 12/88:30 pmITO - ORD
2 stops19h 24mAlaska Airlines
Deal found 10/28$490
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 11/263:51 pmORD - ITO
2 stops28h 12mAlaska Airlines
Sat 12/69:00 pmITO - ORD
2 stops13h 09mAlaska Airlines
Deal found 10/30$529
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 11/149:20 amORD - ITO
2 stops15h 10mAlaska Airlines
Tue 11/189:00 pmITO - ORD
2 stops15h 30mAlaska Airlines
Deal found 10/30$737
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 11/128:00 amORD - ITO
2 stops15h 01mAlaska Airlines
Sun 11/167:43 pmITO - ORD
2 stops14h 11mAlaska Airlines
Deal found 10/28$744
This Southwest deal was found by Cheapflights users on 10/28. 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 11/27:15 amORD - ITO
2 stops18h 25mSouthwest
Sun 11/96:55 pmITO - ORD
2 stops14h 35mSouthwest
Deal found 10/28$774
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 10/287:00 amSTL - ITO
2 stops14h 56mAlaska Airlines
Wed 10/299:00 pmITO - STL
2 stops21h 59mAlaska Airlines
Deal found 10/27$822
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 11/89:20 amORD - ITO
2 stops17h 02mAlaska Airlines
Sat 11/156:00 amITO - ORD
2 stops14h 24mAlaska Airlines
Deal found 10/28$849
This United Airlines deal was found by Cheapflights users on 10/28. 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 10/299:00 amSTL - ITO
2 stops16h 30mUnited Airlines
Wed 11/54:34 pmITO - STL
2 stops16h 05mUnited Airlines
Deal found 10/28$940
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/267:35 pmORD - ITO
2 stops28h 53mUnited Airlines
Sat 12/67:44 pmITO - ORD
1 stop30h 24mUnited Airlines
Deal found 10/30$968
This Delta deal was found by Cheapflights users on 10/28. 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 10/296:00 amSTL - ITO
2 stops19h 30mDelta
Wed 11/51:52 pmITO - STL
2 stops14h 45mDelta
Deal found 10/28$976
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sun 11/309:35 amORD - ITO
1 stop14h 53mUnited Airlines
Fri 12/127:44 pmITO - ORD
2 stops16h 56mUnited Airlines
Deal found 10/28$976

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 October 30, 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

Thu 12/4

8:55 am-2:32 pm

2 stops33h 37m

Hilo Intl

Mon 12/8

6:44 pm-11:50 pm

2 stops25h 06m

$463

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Wed 12/3

3:05 pm-4:05 pm

2 stops29h 00m

Hilo Intl

Mon 12/8

7:44 pm-7:54 pm

2 stops20h 10m

$501

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Sat 1/10

3:49 pm-5:45 pm

2 stops29h 56m

Hilo Intl

Sat 1/17

6:00 am-11:37 pm

2 stops13h 37m

$527

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Wed 11/26

3:51 pm-4:03 pm

2 stops28h 12m

Hilo Intl

Sat 12/6

9:00 pm-2:09 pm

2 stops13h 09m

$529

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Thu 1/1

3:37 pm-3:14 pm

2 stops27h 37m

Hilo Intl

Thu 1/8

7:44 pm-2:38 pm

2 stops14h 54m

$684

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Wed 11/12

8:00 am-7:01 pm

2 stops15h 01m

Hilo Intl

Sun 11/16

7:43 pm-1:54 pm

2 stops14h 11m

$744

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Sun 11/2

7:15 am-9:40 pm

2 stops18h 25m

Hilo Intl

Sun 11/9

6:55 pm-1:30 pm

2 stops14h 35m

$774

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Thu 1/1

6:15 am-7:59 pm

2 stops17h 44m

Hilo Intl

Thu 1/8

8:24 am-5:24 am

1 stop17h 00m

$838

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Thu 1/1

7:15 am-6:10 pm

2 stops14h 55m

Hilo Intl

Thu 1/8

3:25 pm-1:30 pm

2 stops18h 05m

$849

ChicagoHilo

ORD - ITO

ORDITO

Chicago O'Hare Intl

Sat 11/8

9:20 am-10:22 pm

2 stops17h 02m

Hilo Intl

Sat 11/15

6:00 am-12:24 am

2 stops14h 24m

$849

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 45 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, January is the cheapest month in which you can book a flight from Illinois to Hilo (average of $420). 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 October 30, 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 Alaska Airlines, Delta, and United Airlines fly from Illinois to Hilo in about 18h 30m. The time it takes to get you to your destination can typically vary by up to 19h 54m. 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 cheapest airlines to fly from Illinois to Hilo one-way?

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $223. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Illinois to Hilo for a low price.

  • 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, Lambert-St Louis - Hilo Intl and Chicago Midway - 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, January is the cheapest month in which you can book a flight from Illinois to Hilo (average of $420). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$553Average$747FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$598Average$768FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$759Average$1,287FlexibilityNo cancel feeOn-time69%

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