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$239+ Cheap flights from O'ahu 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ORD
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from O'ahu to Illinois

Keep the following information in mind while searching for O'ahu to Illinois flight deals. Data was last updated May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$520
(Delta)

One-way from

$239
(Delta)

Popular in

July

Cheapest in

October

Average price

$644

Good round-trip deal

$770 or less

Good one-way deal

$411 or less
Provider with most accurate pricing for Honolulu-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Honolulu-Chicago (CHI) flights.
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From O'ahu to Illinois
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One-way flight from O'ahu to Illinois
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Highest demand for flights based on searches. 7% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from O'ahu to Illinois.
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Price to beat on a one-way flight from O'ahu to Illinois.
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Find flight deals from O'ahu to Illinois

Cheapest flights from O'ahu to Illinois
Explore the most affordable flight options available from O'ahu to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1112:35 pmHNL - STL
2 stops14h 57mDelta
Fri 8/156:30 amSTL - HNL
1 stop12h 00mDelta
Deal found 4/30$520
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2112:35 pmHNL - MDW
2 stops15h 01mDelta
Tue 8/269:30 amMDW - HNL
2 stops14h 42mDelta
Deal found 4/30$554
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/143:45 pmHNL - ORD
1 stop10h 37mDelta
Tue 8/197:00 amORD - HNL
1 stop12h 15mDelta
Deal found 4/30$555
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:20 amHNL - STL
1 stop11h 44mAmerican Airlines
Sun 5/118:05 amSTL - HNL
1 stop11h 07mAmerican Airlines
Deal found 4/30$561
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:10 amHNL - MDW
1 stop10h 15mSouthwest
Thu 9/119:10 pmMDW - HNL
1 stop18h 10mSouthwest
Deal found 4/30$563
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 5/2811:45 pmHNL - ORD
1 stop24h 55mAlaska Airlines
Thu 6/53:17 pmORD - HNL
1 stop12h 50mAlaska Airlines
Deal found 4/30$568
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/169:40 pmHNL - STL
2 stops13h 07mUnited Airlines
Tue 5/201:41 pmSTL - HNL
1 stop11h 19mUnited Airlines
Deal found 5/1$572
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/46:20 amHNL - ORD
1 stop12h 39mAmerican Airlines
Tue 6/103:12 pmORD - HNL
1 stop11h 43mAmerican Airlines
Deal found 4/30$587
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 5/2811:45 pmHNL - STL
1 stop12h 37mAlaska Airlines
Wed 6/43:03 pmSTL - HNL
2 stops20h 44mAlaska Airlines
Deal found 4/30$627
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2111:15 amHNL - ORD
2 stops19h 35mSouthwest
Sat 5/245:25 pmORD - HNL
2 stops21h 55mSouthwest
Deal found 4/30$719
This Hawaiian Airlines deal was found by Cheapflights users on 5/1. 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.
Thu 5/1511:45 pmHNL - STL
1 stop12h 37mHawaiian Airlines
Wed 5/283:03 pmSTL - HNL
1 stop13h 04mHawaiian Airlines
Deal found 5/1$721
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/810:43 pmHNL - CMI
2 stops16h 07mAmerican Airlines
Mon 9/157:00 amCMI - HNL
2 stops19h 13mAmerican Airlines
Deal found 4/30$788

Cheapflights Fare Finder

Customize your flight search to find flights from O'ahu 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 May 1, 2025.
Use the filters below to find and compare flights from O'ahu to Illinois that are best for you.

Fly from

O'ahu

Fly to

Illinois

Route

Depart

Return

Price

HonoluluSt. Louis

HNL - STL

HNLSTL

Honolulu

Mon 8/11

12:35 pm-8:32 am

2 stops14h 57m

Lambert-St Louis

Fri 8/15

6:30 am-1:30 pm

1 stop12h 00m

$520

HonoluluChicago

HNL - MDW

HNLMDW

Honolulu

Thu 8/21

12:35 pm-8:36 am

2 stops15h 01m

Chicago Midway

Tue 8/26

9:30 am-7:12 pm

2 stops14h 42m

$554

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Thu 8/14

3:45 pm-7:22 am

1 stop10h 37m

Chicago O'Hare Intl

Tue 8/19

7:00 am-2:15 pm

1 stop12h 15m

$555

HonoluluChicago

HNL - MDW

HNLMDW

Honolulu

Thu 9/4

8:10 am-11:25 pm

1 stop10h 15m

Chicago Midway

Thu 9/11

9:10 pm-10:20 am

1 stop18h 10m

$563

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Wed 5/28

11:45 pm-5:40 am

1 stop24h 55m

Chicago O'Hare Intl

Thu 6/5

3:17 pm-11:07 pm

1 stop12h 50m

$568

HonoluluSt. Louis

HNL - STL

HNLSTL

Honolulu

Fri 5/16

9:40 pm-3:47 pm

2 stops13h 07m

Lambert-St Louis

Tue 5/20

1:41 pm-8:00 pm

1 stop11h 19m

$572

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Wed 6/4

6:20 am-11:59 pm

1 stop12h 39m

Chicago O'Hare Intl

Tue 6/10

3:12 pm-9:55 pm

1 stop11h 43m

$587

HonoluluSt. Louis

HNL - STL

HNLSTL

Honolulu

Wed 5/28

11:45 pm-5:22 pm

1 stop12h 37m

Lambert-St Louis

Wed 6/4

6:18 pm-11:07 pm

1 stop33h 49m

$622

HonoluluSt. Louis

HNL - STL

HNLSTL

Honolulu

Mon 8/11

11:04 pm-12:16 am

1 stop20h 12m

Lambert-St Louis

Fri 8/15

7:49 am-2:10 pm

1 stop11h 21m

$702

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Wed 5/21

11:15 am-11:50 am

2 stops19h 35m

Chicago O'Hare Intl

Sat 5/24

5:25 pm-10:20 am

2 stops21h 55m

$719

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 30 results
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Best time to book a flight from O'ahu to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from O'ahu 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 O'ahu to Illinois

What is the cheapest month to book a flight from O'ahu to Illinois?

Currently, August is the cheapest month in which you can book a flight from O'ahu to Illinois (average of $245). Flying from O'ahu 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 FUW to IL?

Find hourly flight availability from O'ahu 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 May 1, 2025.

When flying from O'ahu to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from O'ahu to Illinois

Explore weekly flight availability from O'ahu to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 1, 2025.

The most flights from zzFUW to USIL are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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 May 1, 2025.
To help decide which airline to fly from O'ahu to Illinois, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

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
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

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
4,293 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

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
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

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 O'ahu to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from O'ahu to Illinois one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $239. However, be on the lookout for offers from American Airlines and Alaska Airlines, as they are both options that can get you from O'ahu to Illinois for a low price.

  • Can I find deals for flights from O'ahu to Illinois that include hotel bookings?

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

  • How can I find direct flights from O'ahu to Illinois?

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

  • Can I find deals for business class flights from O'ahu to Illinois?

    Yes. Cheapflights offers flight deals from O'ahu 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 O'ahu to Illinois?

    Currently, August is the cheapest month in which you can book a flight from O'ahu to Illinois (average of $245). Flying from O'ahu 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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Alternative routes for O'ahu to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from O'ahu to Illinois

Discover the top 6 airlines that operate flights from O'ahu 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$280Average$777FlexibilityNo cancel feeOn-time85%
DeltaCheapest$291Average$773FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$418Average$753FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$421Average$661FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$444Average$713FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$783Average$1,079FlexibilityNo cancel feeOn-time69%

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