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Illinois

$273+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ORD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$409
(Delta)

One-way from

$273
(Delta)

Popular in

July

Cheapest in

November

Average price

$873

Good round-trip deal

$779 or less

Good one-way deal

$375 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. 11% potential increase in price ($91 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 July 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 July 31, 2025.

This Delta deal was found by Cheapflights users on 7/30. 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.
Wed 8/274:09 pmHNL - STL
1 stop11h 27mDelta
Wed 9/36:00 amSTL - HNL
1 stop12h 38mDelta
Deal found 7/30$409
This Southwest deal was found by Cheapflights users on 7/29. 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 11/68:00 amHNL - MDW
1 stop13h 30mSouthwest
Sun 11/97:45 amMDW - HNL
1 stop12h 30mSouthwest
Deal found 7/29$409
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/277:55 pmHNL - STL
1 stop13h 31mUnited Airlines
Wed 9/311:05 amSTL - HNL
2 stops13h 44mUnited Airlines
Deal found 7/30$414
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/39:42 pmHNL - ORD
1 stop13h 16mAmerican Airlines
Sun 9/79:50 amORD - HNL
1 stop13h 04mAmerican Airlines
Deal found 7/30$423
This Delta deal was found by Cheapflights users on 7/30. 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.
Wed 9/34:09 pmHNL - ORD
2 stops15h 36mDelta
Sun 9/77:15 amORD - HNL
1 stop12h 04mDelta
Deal found 7/30$429
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:50 amHNL - ORD
1 stop11h 14mHawaiian Airlines
Sat 9/202:07 pmORD - HNL
1 stop11h 43mHawaiian Airlines
Deal found 7/29$441
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 11/69:02 amHNL - ORD
2 stops29h 57mAlaska Airlines
Sun 11/99:20 amORD - HNL
1 stop12h 35mAlaska Airlines
Deal found 7/29$443
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 9/81:10 pmHNL - STL
1 stop20h 29mAlaska Airlines
Wed 9/173:35 pmSTL - HNL
1 stop13h 11mAlaska Airlines
Deal found 7/30$462
This Southwest deal was found by Cheapflights users on 7/30. 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 10/158:05 amHNL - STL
1 stop11h 05mSouthwest
Mon 10/205:10 amSTL - HNL
1 stop13h 50mSouthwest
Deal found 7/30$463
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/811:02 pmHNL - STL
2 stops14h 20mAmerican Airlines
Wed 9/178:50 amSTL - HNL
2 stops15h 43mAmerican Airlines
Deal found 7/30$473
This Delta deal was found by Cheapflights users on 7/29. 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 9/810:06 pmHNL - MDW
2 stops15h 31mDelta
Wed 9/249:20 amMDW - HNL
2 stops16h 10mDelta
Deal found 7/29$504
This Southwest deal was found by Cheapflights users on 7/30. 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 9/249:00 pmHNL - ORD
1 stop12h 25mSouthwest
Mon 9/296:55 pmORD - HNL
2 stops20h 25mSouthwest
Deal found 7/30$531

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 July 31, 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

Wed 8/27

4:09 pm-8:36 am

1 stop11h 27m

Lambert-St Louis

Wed 9/3

6:00 am-1:38 pm

1 stop12h 38m

$409

HonoluluChicago

HNL - MDW

HNLMDW

Honolulu

Thu 11/6

8:00 am-1:30 am

1 stop13h 30m

Chicago Midway

Sun 11/9

7:45 am-4:15 pm

1 stop12h 30m

$409

HonoluluSt. Louis

HNL - STL

HNLSTL

Honolulu

Wed 8/27

7:55 pm-2:26 pm

1 stop13h 31m

Lambert-St Louis

Wed 9/3

11:05 am-7:49 pm

2 stops13h 44m

$414

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Wed 9/3

9:42 pm-3:58 pm

1 stop13h 16m

Chicago O'Hare Intl

Sun 9/7

9:50 am-5:54 pm

1 stop13h 04m

$423

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Wed 9/3

4:09 pm-12:45 pm

2 stops15h 36m

Chicago O'Hare Intl

Sun 9/7

7:15 am-2:19 pm

1 stop12h 04m

$429

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Sat 9/13

7:50 am-12:04 am

1 stop11h 14m

Chicago O'Hare Intl

Sat 9/20

2:07 pm-8:50 pm

1 stop11h 43m

$441

HonoluluChicago

HNL - ORD

HNLORD

Honolulu

Thu 11/6

9:02 am-6:59 pm

2 stops29h 57m

Chicago O'Hare Intl

Sun 11/9

9:20 am-5:55 pm

1 stop12h 35m

$443

HonoluluSt. Louis

HNL - STL

HNLSTL

Honolulu

Mon 9/8

1:10 pm-2:39 pm

1 stop20h 29m

Lambert-St Louis

Wed 9/17

3:35 pm-11:46 pm

1 stop13h 11m

$462

HonoluluSt. Louis

HNL - STL

HNLSTL

Honolulu

Wed 10/15

8:05 am-12:10 am

1 stop11h 05m

Lambert-St Louis

Mon 10/20

5:10 am-2:00 pm

1 stop13h 50m

$463

HonoluluSt. Louis

HNL - STL

HNLSTL

Honolulu

Mon 9/8

11:02 pm-6:22 pm

2 stops14h 20m

Lambert-St Louis

Wed 9/17

8:50 am-7:33 pm

2 stops15h 43m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 29 results
1
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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 July 31, 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 July 31, 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).

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 July 31, 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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 $273. However, be on the lookout for offers from American Airlines 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$231Average$586FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$335Average$777FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$426Average$741FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$457Average$726FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$606Average$788FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$780Average$1,082FlexibilityNo cancel feeOn-time69%

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