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$240+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ORD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$453
(Vliegwinkel)

One-way from

$240
(Delta)

Popular in

July

Cheapest in

November

Average price

$618

Good round-trip deal

$577 or less

Good one-way deal

$327 or less
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. 13% potential increase in price ($110 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Vliegwinkel deal was found by Cheapflights users on 9/17. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:53 pmHNL - STL
1 stop12h 25mHawaiian Airlines
Mon 11/37:00 amSTL - HNL
1 stop14h 01mHawaiian Airlines
Deal found 9/17$453
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/231:20 pmHNL - ORD
2 stops14h 10mDelta
Mon 10/277:37 amORD - HNL
1 stop16h 32mDelta
Deal found 9/16$471
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:45 pmHNL - ORD
1 stop12h 16mDelta
Wed 1/77:30 amORD - HNL
1 stop17h 03mDelta
Deal found 9/16$472
This Delta deal was found by Cheapflights users on 9/15. 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 11/174:45 pmHNL - MDW
1 stop12h 07mDelta
Mon 1/126:00 amMDW - HNL
1 stop13h 12mDelta
Deal found 9/15$475
This Delta deal was found by Cheapflights users on 9/17. 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 12/234:45 pmHNL - ORD
1 stop12h 16mDelta
Mon 1/127:00 amORD - HNL
1 stop12h 29mDelta
Deal found 9/17$475
This Delta deal was found by Cheapflights users on 9/17. 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 10/232:50 pmHNL - ORD
1 stop12h 00mDelta
Sun 10/267:37 amORD - HNL
1 stop16h 32mDelta
Deal found 9/17$479
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 10/171:05 pmHNL - ORD
1 stop12h 19mAlaska Airlines
Sat 10/253:50 pmORD - HNL
1 stop25h 32mAlaska Airlines
Deal found 9/17$481
This Delta deal was found by Cheapflights users on 9/17. 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.
Fri 10/314:50 pmHNL - MDW
1 stop10h 50mDelta
Wed 11/59:20 amMDW - HNL
2 stops16h 06mDelta
Deal found 9/17$484
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:37 pmHNL - STL
1 stop11h 18mDelta
Sat 11/156:40 amSTL - HNL
2 stops17h 35mDelta
Deal found 9/16$489
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:20 pmHNL - ORD
2 stops14h 43mDelta
Tue 11/47:10 amORD - HNL
2 stops18h 16mDelta
Deal found 9/16$490
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:00 amHNL - STL
1 stop12h 42mAmerican Airlines
Sat 11/156:00 amSTL - HNL
1 stop13h 23mAmerican Airlines
Deal found 9/16$507
This Delta deal was found by Cheapflights users on 9/15. 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 11/174:45 pmHNL - MDW
1 stop12h 07mDelta
Mon 1/56:00 amMDW - HNL
1 stop13h 12mDelta
Deal found 9/15$511

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 September 17, 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

Thu 10/30

9:53 pm-3:18 pm

1 stop12h 25m

Lambert-St Louis

Mon 11/3

7:00 am-5:01 pm

1 stop14h 01m

$453

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Sun 3/1

8:15 am-11:44 pm

1 stop11h 29m

Chicago O'Hare Intl

Tue 3/3

5:50 am-3:19 pm

1 stop13h 29m

$471

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Tue 12/23

4:45 pm-9:01 am

1 stop12h 16m

Chicago O'Hare Intl

Wed 1/7

7:30 am-8:33 pm

1 stop17h 03m

$472

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Tue 12/23

4:45 pm-9:01 am

1 stop12h 16m

Chicago O'Hare Intl

Mon 1/12

7:00 am-3:29 pm

1 stop12h 29m

$475

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Tue 10/14

10:31 pm-5:10 pm

1 stop13h 39m

Chicago O'Hare Intl

Tue 10/21

6:45 am-7:09 pm

2 stops17h 24m

$478

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Mon 10/27

10:31 pm-5:10 pm

1 stop13h 39m

Chicago O'Hare Intl

Mon 11/3

7:10 am-2:51 pm

1 stop11h 41m

$479

HonoluluChicago

HNL - MDW

HNLMDW

Honolulu

Mon 11/17

4:45 pm-1:07 pm

2 stops16h 22m

Chicago Midway

Mon 1/12

6:00 am-3:12 pm

1 stop13h 12m

$480

HonoluluChicago

HNL - MDW

HNLMDW

Honolulu

Fri 10/31

4:50 pm-8:40 am

1 stop10h 50m

Chicago Midway

Wed 11/5

9:20 am-9:26 pm

2 stops16h 06m

$484

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Thu 10/23

1:20 pm-7:50 am

2 stops13h 30m

Chicago O'Hare Intl

Sun 10/26

7:37 am-7:09 pm

1 stop16h 32m

$484

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Mon 11/17

4:45 pm-12:04 pm

2 stops15h 19m

Chicago O'Hare Intl

Mon 1/5

7:00 am-3:29 pm

1 stop12h 29m

$484

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 58 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 September 17, 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 September 17, 2025.

The most flights from zzFUW to USIL are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

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 September 17, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from O'ahu to Illinois by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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.

  • How long is the flight from O'ahu to Illinois?

    A quick flight from O'ahu to Illinois can take about 11h 29m. Hawaiian Airlines provides one of the quickest options available for as low as $471. O'ahu and Illinois are separated by a distance of 4234 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Hawaiian Airlines, with whom users have recently found tickets for as low as $240. However, be on the lookout for offers from Delta and United 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$231Average$626FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$335Average$770FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$461Average$759FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$461Average$754FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$617Average$798FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$781Average$1,084FlexibilityNo cancel feeOn-time69%

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