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$136+ Cheap flights from Kailua-Kona to Denver (KOA - DEN)

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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — DEN
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheapflights Tip: The best prices from Kona Intl to Denver Intl are usually found in November or September, booked 55 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Kailua-Kona to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Kailua-Kona (KOA) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$279
(Alaska Airlines)

One-way from

$136
(Trip.com)

Popular in

July

Cheapest in

November

Average price

$492

Good round-trip deal

$527 or less

Good one-way deal

$264 or less
Provider with most accurate pricing for Kona Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Kona Intl-Denver Intl flights.
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From Kona Intl to Denver Intl
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One-way flight from Kona Intl to Denver Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 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 Kona Intl to Denver Intl.
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Price to beat on a one-way flight from Kona Intl to Denver Intl.
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Find flight deals from Kailua-Kona to Denver

Cheapest flights from Kailua-Kona to Denver
Explore the most affordable flight options available from Kailua-Kona to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/25. 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 12/232:25 pmKOA - DEN
1 stop30h 34mAlaska Airlines
Tue 1/66:00 amDEN - KOA
1 stop13h 05mAlaska Airlines
Deal found 9/25$279
This Orbitz deal was found by Cheapflights users on 9/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2112:07 pmKOA - DEN
1 stop21h 53mAlaska Airlines
Mon 10/2712:49 pmDEN - KOA
1 stop28h 54mAlaska Airlines
Deal found 9/24$286
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Tue 11/251:40 pmKOA - DEN
1 stop31h 19mAlaska Airlines
Wed 12/36:59 pmDEN - KOA
1 stop24h 01mAlaska Airlines
Deal found 9/24$323
This Delta deal was found by Cheapflights users on 9/24. 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 10/219:30 pmKOA - DEN
2 stops13h 16mDelta
Mon 10/276:25 amDEN - KOA
1 stop15h 05mDelta
Deal found 9/24$330
This American Airlines deal was found by Cheapflights users on 9/22. 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 11/249:35 pmKOA - DEN
1 stop11h 02mAmerican Airlines
Sat 11/297:10 amDEN - KOA
1 stop12h 37mAmerican Airlines
Deal found 9/22$332
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/299:45 pmKOA - DEN
1 stop9h 43mAmerican Airlines
Sun 11/27:00 amDEN - KOA
1 stop11h 02mAmerican Airlines
Deal found 9/24$371

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kailua-Kona to Denver 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 25, 2025.
Use the filters below to find and compare flights from Kailua-Kona to Denver that are best for you.

Fly from

Kailua-Kona

Fly to

Denver

Route

Depart

Return

Price

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 12/23

2:25 pm-11:59 pm

1 stop30h 34m

Denver Intl

Tue 1/6

6:00 am-4:05 pm

1 stop13h 05m

$279

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 1/27

10:00 pm-11:39 am

1 stop10h 39m

Denver Intl

Sun 2/1

12:30 pm-2:46 pm

1 stop29h 16m

$306

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 10/21

9:30 pm-2:46 pm

2 stops13h 16m

Denver Intl

Mon 10/27

6:25 am-5:30 pm

1 stop15h 05m

$330

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Fri 1/30

7:13 pm-11:39 am

2 stops13h 26m

Denver Intl

Sat 2/7

7:04 pm-4:26 pm

2 stops24h 22m

$336

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 11/25

1:40 pm-7:16 pm

1 stop26h 36m

Denver Intl

Wed 12/3

6:45 am-5:22 pm

1 stop13h 37m

$366

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 3/3

6:00 am-10:39 pm

2 stops13h 39m

Denver Intl

Wed 3/4

7:00 am-5:27 pm

2 stops13h 27m

$370

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 10/28

11:09 am-11:51 pm

1 stop8h 42m

$140

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Mon 11/3

12:09 pm-11:34 am

1 stop20h 25m

$145

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Wed 10/29

11:09 am-7:06 pm

1 stop27h 57m

$152

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Wed 12/17

2:20 pm-7:18 pm

1 stop25h 58m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 14 results
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Compare providers for flights from Kailua-Kona to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kailua-Kona to Denver in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kailua-Kona-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kailua-Kona-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kailua-Kona-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kailua-Kona-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kailua-Kona-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Kailua-Kona to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Kailua-Kona to Denver trip
Airports
KOA

Security lines at KOA are rarely a concern. Expect 15 to 20 minutes wait even without TSA PreCheck.

Read more about KOAby Brandon Schultz
DEN

Use the A Line train for a quick 37-minute ride from DEN to Union Station, running every 15 minutes.

Read more about DENby Emily Zemler
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on KOA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Best time to book a flight from Kailua-Kona to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Kailua-Kona 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 Kailua-Kona to Denver

How far ahead should I book a flight from Kailua-Kona to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Kailua-Kona to Denver. Price data was last updated on September 19, 2025.

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Kailua-Kona to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Kailua-Kona to Denver?

Currently, October is the cheapest month in which you can book a flight from Kailua-Kona to Denver (average of $197). Flying from Kailua-Kona to Denver in March is currently the most expensive (average of $278). 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 KOA to DEN?

Find hourly flight availability from Kailua-Kona to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 25, 2025.

One of the essential ways to save on airfare from Kailua-Kona to Denver is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 31% on airfare.

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated September 25, 2025.
Read through reviews of airlines operating flights from Kailua-Kona to Denver, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

Find useful and relevant information for your journey from Kailua-Kona to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Kailua-Kona to Denver?

    Booking a flight from Kona Intl (KOA) to Denver Intl (DEN) is your only option if you wish to fly from Kailua-Kona to Denver. On a typical day, there is 1 flight from Kona Intl to Denver Intl, all of which are around 6h 34m for a nonstop flight. You can also purchase a plane ticket from 5 airlines when you book a flight from Kona Intl to Denver.

  • How popular is this Kailua-Kona to Denver flight route?

    Flights from Kona Intl to Denver Intl have been viewed 9 times in the past calendar month.

  • How long is the flight from Kailua-Kona to Denver?

    A quick flight from Kailua-Kona to Denver can take about 30h 34m. Alaska Airlines provides one of the quickest options available for as low as $279. Airlines will cover a distance of 3323 mi.

  • What are the cheapest airlines flying from Kailua-Kona to Denver round-trip?

    Cheapflights users have booked flights from Kailua-Kona to Denver round-trip from $292. Other airlines that can offer you cheap pricing are American Airlines, from $319, and Southwest, from $379. These flights start at 51% lower than the current average price 3 months from now.

  • What are the cheapest flights from Kailua-Kona to Denver?

    Looking for the cheapest flight from Kailua-Kona to Denver? While on average our users pay $464, our data indicates the cheapest price to be $201. The most popular route (Kona Intl - Denver Intl), is priced around $308.

  • Can I find deals for flights from Kailua-Kona to Denver that include hotel bookings?

    Yes. In addition to deals on Kailua-Kona to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kailua-Kona to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kailua-Kona to Denver.

  • Can I find deals for business class flights from Kailua-Kona to Denver?

    Yes. Cheapflights offers flight deals from Kailua-Kona to Denver 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 Kailua-Kona to Denver?

    Currently, October is the cheapest month in which you can book a flight from Kailua-Kona to Denver (average of $197). Flying from Kailua-Kona to Denver in March is currently the most expensive (average of $278). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Golden
Broomfield
Winter Park
Lakewood
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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Top 5 airlines flying from Kailua-Kona to Denver

Discover the top 5 airlines that operate flights from Kailua-Kona to Denver. 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 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$292Average$543FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$319Average$461FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$379Average$603FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$387Average$778FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$411Average$501FlexibilityNo cancel feeOn-time75%

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