HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'ahu

$842+ Cheap flights from Decatur, IL (DEC) to O'ahu

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — HNL
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Decatur to O'ahu with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Decatur to O'ahu

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

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$842
(United Airlines)
Provider with most accurate pricing for Decatur Arpt-Honolulu flight deals.
Search Deals
Provider most trusted by Cheapflights users for Decatur Arpt-Honolulu flights.
Search Deals
From Decatur Arpt to O'ahu
Search Deals

Find flight deals from Decatur to O'ahu

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

This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:55 pmDEC - HNL
2 stops30h 03mUnited Airlines
Sun 5/189:40 pmHNL - DEC
2 stops54h 14mUnited Airlines
Deal found 4/29$842

Cheapflights Fare Finder

Customize your flight search to find flights from Decatur to O'ahu 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 Decatur to O'ahu that are best for you.

Fly from

Decatur

Fly to

O'ahu

Route

Depart

Return

Price

DecaturHonolulu

DEC - HNL

DECHNL

Decatur Arpt

Wed 5/14

6:55 pm-7:58 pm

2 stops30h 03m

Honolulu

Sun 5/18

9:40 pm-8:54 am

2 stops54h 14m

$842

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Best time to book a flight from Decatur to O'ahu

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

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

Currently, November is the cheapest month in which you can book a flight from Decatur, Illinois to O'ahu (average of $469). Flying from Decatur, Illinois to O'ahu in June is currently the most expensive (average of $687). 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.

Rainfall in O'ahu by month

Plan your trip to O'ahu by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in O'ahu ranges from 0.3 - 3.2 inches per month. December is typically the wettest month, when rainfall can reach 3.2 in. June is typically the driest time to visit O'ahu when rainfall is around 0.3 in.

Temperature in O'ahu by month

Plan your trip to O'ahu by taking into account the average temperature totals by month.

If weather is an important factor for your trip to O'ahu, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

Reviews of airlines servicing O'ahu

Get insights into the airlines that provide service to O'ahu. 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 O'ahu. Reviews last updated May 1, 2025.
United Airlines
7.4
Good
8,696 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Decatur to O'ahu. 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 from for flights from Decatur to O'ahu?

    Located just 4.7 mi from the city center, Decatur Arpt (DEC) is the airport most travelers will use when flying to O'ahu from Decatur.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Decatur, Illinois to O'ahu (average of $469). Flying from Decatur, Illinois to O'ahu in June is currently the most expensive (average of $687). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Decatur to O'ahu

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Honolulu flights
O'Hare Intl to Kahului flights
Midway to Honolulu flights
O'Hare Intl to Kailua-Kona flights
St. Louis to Honolulu flights
O'Hare Intl to Lihue flights
Midway to Kahului flights
St. Louis to Kahului flights
Midway to Kailua-Kona flights
Midway to Lihue flights
St. Louis to Lihue flights
O'Hare Intl to Hilo flights
St. Louis to Kailua-Kona flights
Bloomington to Kahului flights
Peoria to Honolulu flights
St. Louis to Hilo flights
Peoria to Kahului flights
Moline to Honolulu flights
Bloomington to Honolulu flights
Midway to Hilo flights
St. Louis to Kapalua flights
Evansville to Honolulu flights
Springfield to Honolulu flights
O'Hare Intl to Waimea (Big Island) flights
Moline to Kahului flights
O'Hare Intl to Kapalua flights
Moline to Lihue flights
Peoria to Lihue flights
Evansville to Lihue flights
St. Louis to Waimea (Big Island) flights
O'Hare Intl to Hana flights
Evansville to Kahului flights
Dubuque to Honolulu flights
St. Louis to Hana flights
Decatur to Honolulu flights
Springfield to Kahului flights
Springfield to Lihue flights
Moline to Hilo flights
Bloomington to Lihue flights
Champaign to Honolulu flights
Moline to Kailua-Kona flights
Champaign to Kailua-Kona flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.