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$160+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — DEN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$361
(American Airlines)

One-way from

$160
(Southwest)

Popular in

July

Cheapest in

November

Average price

$713

Good round-trip deal

$717 or less

Good one-way deal

$302 or less
From Kona Intl to Denver Intl
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One-way flight from Kona Intl to Denver Intl
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Highest demand for flights based on searches. 18% potential increase in price ($133 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 August 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 August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 10/199:45 pmKOA - DEN
1 stop9h 43mAmerican Airlines
Mon 10/277:25 amDEN - KOA
1 stop11h 06mAmerican Airlines
Deal found 8/14$361
This Delta deal was found by Cheapflights users on 8/12. 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 9/188:44 pmKOA - DEN
1 stop10h 44mDelta
Sun 9/286:55 amDEN - KOA
1 stop14h 34mDelta
Deal found 8/12$375
This American Airlines deal was found by Cheapflights users on 8/12. 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 12/2310:28 pmKOA - DEN
1 stop16h 43mAmerican Airlines
Tue 1/61:00 pmDEN - KOA
1 stop9h 27mAmerican Airlines
Deal found 8/12$376
This Southwest deal was found by Cheapflights users on 8/12. 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.
Fri 9/199:15 amKOA - DEN
1 stop9h 40mSouthwest
Sun 9/286:35 amDEN - KOA
1 stop9h 35mSouthwest
Deal found 8/12$379
This American Airlines deal was found by Cheapflights users on 8/14. 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 10/133:29 pmKOA - DEN
1 stop22h 15mAmerican Airlines
Mon 11/177:15 amDEN - KOA
1 stop11h 29mAmerican Airlines
Deal found 8/14$399
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Fri 9/269:55 pmKOA - DEN
1 stop16h 12mAmerican Airlines
Mon 9/296:00 amDEN - KOA
1 stop11h 42mAmerican Airlines
Deal found 8/14$406
This Delta deal was found by Cheapflights users on 8/12. 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 10/149:30 pmKOA - DEN
1 stop9h 58mDelta
Wed 10/2212:43 pmDEN - KOA
1 stop10h 40mDelta
Deal found 8/12$411
This American Airlines deal was found by Cheapflights users on 8/12. 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 11/249:45 pmKOA - DEN
1 stop10h 52mAmerican Airlines
Sat 11/297:15 amDEN - KOA
1 stop11h 29mAmerican Airlines
Deal found 8/12$428
This Delta deal was found by Cheapflights users on 8/13. 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 9/169:30 pmKOA - DEN
1 stop9h 39mDelta
Fri 9/1912:32 pmDEN - KOA
1 stop9h 03mDelta
Deal found 8/13$431
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 10/1412:22 pmKOA - DEN
2 stops21h 38mAlaska Airlines
Wed 10/223:00 pmDEN - KOA
1 stop25h 29mAlaska Airlines
Deal found 8/12$438

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 August 14, 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

Sun 10/19

9:45 pm-11:28 am

1 stop9h 43m

Denver Intl

Mon 10/27

7:25 am-2:31 pm

1 stop11h 06m

$361

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Thu 9/18

8:44 pm-11:28 am

1 stop10h 44m

Denver Intl

Sun 9/28

6:55 am-5:29 pm

1 stop14h 34m

$375

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Thu 9/18

3:18 pm-11:08 am

1 stop15h 50m

Denver Intl

Wed 9/24

6:00 am-1:42 pm

1 stop11h 42m

$376

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Fri 9/19

9:15 am-10:55 pm

1 stop9h 40m

Denver Intl

Sun 9/28

6:35 am-12:10 pm

1 stop9h 35m

$379

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Mon 10/13

3:29 pm-5:44 pm

1 stop22h 15m

Denver Intl

Mon 11/17

7:15 am-3:44 pm

1 stop11h 29m

$399

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Fri 9/26

9:55 pm-6:07 pm

1 stop16h 12m

Denver Intl

Mon 9/29

6:00 am-1:42 pm

1 stop11h 42m

$406

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 10/14

9:30 pm-11:28 am

1 stop9h 58m

Denver Intl

Wed 10/22

12:43 pm-7:23 pm

1 stop10h 40m

$411

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 9/16

9:30 pm-11:09 am

1 stop9h 39m

Denver Intl

Fri 9/19

12:32 pm-5:35 pm

1 stop9h 03m

$431

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Fri 9/19

9:30 pm-2:50 pm

2 stops13h 20m

Denver Intl

Sun 9/28

6:55 am-5:29 pm

1 stop14h 34m

$436

Kailua-KonaDenver

KOA - DEN

KOADEN

Kona Intl

Tue 2/3

10:28 pm-11:19 am

1 stop9h 51m

$160

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 17 results
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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 August 8, 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 August 14, 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 32% 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 August 14, 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

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Southwest
8.0
Very good
4,244 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

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.

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

    Flights from Kona Intl to Denver Intl have been viewed 8 times in the past calendar month.

  • 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 $319. Other airlines that can offer you cheap pricing are Delta, from $319, and Alaska Airlines, from $355. These flights start at 46% 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 $630, our data indicates the cheapest price to be $239. The most popular route (Kona Intl - Denver Intl), is priced around $431.

  • 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
Westminster
Black Hawk
Golden
Winter Park
Greeley
Lone Tree
Lakewood
Cripple Creek
Silverthorne
Thornton
Broomfield
Frisco
Manitou Springs
Grand Lake
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Brighton
Longmont

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$319Average$433FlexibilityNo cancel feeOn-time71%
DeltaCheapest$319Average$473FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$355Average$501FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$379Average$678FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$387Average$797FlexibilityNo cancel feeOn-time69%

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