KOA - DEN

$146 Find Cheap Flights from Kailua-Kona to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kailua-Kona to Denver departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kailua-Kona to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kailua-Kona to Denver, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Kailua-Kona to Denver (KOA-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kailua-Kona to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kailua-Kona to Denver

Tue, Dec 23 - Tue, Jan 6
Alaska Airlines Logo
2:25 pm - 11:59 pmKOA-DEN
30h 34m1 stop
Alaska Airlines Logo
6:00 am - 4:05 pmDEN-KOA
13h 05m1 stop
$343Alaska Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Delta Logo
8:30 pm - 11:28 amKOA-DEN
11h 58m1 stop
Delta Logo
6:05 am - 6:13 pmDEN-KOA
15h 08m1 stop
$344Delta
Find Deal
Tue, Dec 23 - Tue, Jan 6
Alaska Airlines Logo
2:25 pm - 7:18 pmKOA-DEN
25h 53m1 stop
Alaska Airlines Logo
6:00 am - 8:30 pmDEN-KOA
17h 30m2 stops
$348Alaska Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Delta Logo
9:30 pm - 6:56 pmKOA-DEN
18h 26m2 stops
Delta Logo
6:05 am - 6:13 pmDEN-KOA
15h 08m1 stop
$349Delta
Find Deal
Thu, Jan 29 - Sun, Feb 1
Alaska Airlines Logo
9:10 pm - 6:41 pmKOA-DEN
18h 31m2 stops
Alaska Airlines Logo
12:34 pm - 10:32 amDEN-KOA
24h 58m2 stops
$353Alaska Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Delta Logo
8:30 pm - 11:47 amKOA-DEN
12h 17m2 stops
Delta Logo
6:05 am - 7:25 pmDEN-KOA
16h 20m2 stops
$354Delta
Find Deal
Tue, Dec 23 - Tue, Jan 6
Alaska Airlines Logo
10:08 pm - 11:59 pmKOA-DEN
22h 51m1 stop
Alaska Airlines Logo
6:00 am - 8:30 pmDEN-KOA
17h 30m2 stops
$368Alaska Airlines
Find Deal
Mon, Nov 24 - Sat, Nov 29
American Airlines Logo
9:35 pm - 11:37 amKOA-DEN
11h 02m1 stop
American Airlines Logo
7:10 am - 4:47 pmDEN-KOA
12h 37m1 stop
$369American Airlines
Find Deal
Mon, Nov 24 - Sat, Nov 29
American Airlines Logo
9:35 pm - 11:37 amKOA-DEN
11h 02m1 stop
American Airlines Logo
7:10 am - 4:47 pmDEN-KOA
12h 37m1 stop
$379American Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Hawaiian Airlines Logo
12:00 pm - 11:51 pmKOA-DEN
8h 51m1 stop
Hawaiian Airlines Logo
8:20 am - 2:46 pmDEN-KOA
9h 26m1 stop
$403Hawaiian Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Prepare for USDA checkpoints at Kona Intl.
Use the RTD A line train for downtown Denver access.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Alaska Airlines
Cheapest • from $343 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 30% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$343
Overall average: $564
Alaska Airlines
Tue 12/23Tue 1/6
KOA - DEN • 1 stop
Cheapest non-stop
$674
Typical prices: $797-$862
United Airlines
Thu 1/29Sun 2/1
KOA - DEN • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Booking Insights

KAYAK's insights & trends for Kailua-Kona to Denver flights

Get data-powered insights and trends into flights from Kailua-Kona to Denver to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Kailua-Kona to Denver?

The average price of all round-trip flights from Kailua-Kona to Denver clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Denver on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Kailua-Kona to Denver. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Kailua-Kona to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Kailua-Kona to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Kailua-Kona to Denver is November, where tickets cost $432 (return) on average. On the other hand, the most expensive months are September and July, where the average cost of round-trip tickets is $813 and $743 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Kailua-Kona to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Kailua-Kona to Denver, you should book around 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Kailua-Kona to Denver

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
KOA

Prepare for USDA checkpoints at KOA. Checked bags are screened after check-in, and carry-ons inspected at security. Factor this into your travel plans.

Read more about KOAby Blane Bachelor
DEN

Use the RTD A line train for a cost-effective 40-minute ride from DEN to downtown Denver, with easy access to city attractions.

Read more about DENby Harriet Baskas
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on KOA

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Good to know

Low seasonNovember
Cheapest flight$146
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Kailua-Kona to Denver

When to book flights from Kailua-Kona to Denver

Are your dates flexible? Find out the best times to travel from Kailua-Kona to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Kailua-Kona to Denver

  • What is the cheapest flight from Kailua-Kona to Denver?

    In the last 3 days, the lowest price for a flight from Kailua-Kona to Denver was $146 for a one-way ticket and $343 for a round-trip.

  • Do I need a passport to fly between Kailua-Kona and Denver?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Kailua-Kona to Denver?

    Only American Airlines offers inflight Wi-Fi service on the Kailua-Kona to Denver flight route.

  • Which aircraft models fly most regularly from Kailua-Kona to Denver?

    The Boeing 777 is the aircraft model that flies most regularly on the Kailua-Kona to Denver flight route.

  • Which airline alliances offer flights from Kailua-Kona to Denver?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Kailua-Kona and Denver, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Kailua-Kona to Denver?

    There are nonstop flights from Kailua-Kona to Denver on a daily basis.

  • Which is the best airline for flights from Kailua-Kona to Denver, Alaska Airlines or Southwest?

    The two airlines most popular with KAYAK users for flights from Kailua-Kona to Denver are Alaska Airlines and Southwest. With an average price for the route of $505 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $678 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Kailua-Kona to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Kailua-Kona to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Kailua-Kona to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Kailua-Kona is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Kailua-Kona to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Kailua-Kona with another airline. Booking your flights between Kailua-Kona and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Kailua-Kona to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Kailua-Kona up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Kailua-Kona to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $264 or less one-way and $524 or less round-trip.

Prefer to fly direct from Kailua-Kona to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Kona Intl to Denver Intl.
Find which airlines fly direct from Kona Intl Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Kona Intl to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Denver Intl to Kona Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Kailua-Kona to Denver

 
See real verified KAYAK customer reviews for airlines flying from Kailua-Kona to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kailua-Kona to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11100 reviews
7.0Entertainment
8.1Boarding
7.1Food
8.5Crew
7.8Comfort
Airline reviews

If the flight from Seattle to Eugene hadn’t been delayed for mechanical reasons we never would have made it. 45 minutes is not enough time to deplane and get clear across a big airport like SeaTac.

4.0 OkayDouglas, Oct 2025HNL - SEA
Read more Alaska Airlines reviews

If the flight from Seattle to Eugene hadn’t been delayed for mechanical reasons we never would have made it. 45 minutes is not enough time to deplane and get clear across a big airport like SeaTac.

This was a smooth ride all the way with plenty of space in main cabin for my 6 foot frame over 5.5 hours. The stewards were pleasant and attentive. We bought the tapas box which proved to adequate for us on this flight. It was pretty hard to find restaurant food to go that is vegan for us in Kona Airport so buying this helped lots.

set room is an issue and I am not obese.

Look at my previous review I just wrote on this survey. It was awful!

My experience from Lihue Airport was the “Flight Experience from Hell!” First, I was pulled aside by the Lihue TSA and searched thoroughly! Not once, but twice I was molested by 5 different TSA agents using some sort of smear cloth testing to see if I had been exposed to something dangerous! I can’t tell you what because they never gave me an explanation by the end of a near delaying incident of boarding my plane. More importantly, I was generously provided an airport wheel chair and personal porter because of my health condition. TSA even took your wheelchair apart! What’s up with that? I’m near 75, caucasian, never been arrested for anything, don’t do drugs or alcohol, and patiently and politely abided to their instructions for a full damn 20 minutes! Awful and humiliating experience especially when two different agents literally groped my testicles and crack of my butt! Then they lost the cap to my inhaler. When I got to my destination, a whole bottle of prescribed pills were emptied because of them not tightening the cap back on! Total BS and unprofessional by the lot of them! The short flight to my connecting flight to the mainland on Maui fortunately was uneventful. However the Hawaiian aircraft to San Jose was one of the worst flights I’ve ever experienced without crashing. I believe it was a 330 Neo. May I ask, why did you put three more rows of seats in the damn plane since I last flew on a Hawaiian aircraft? I had absolutely NO legroom compared to the last time I flew with you. And I’ve done a few Hawaii/mainland trips, even a RT to New Zealand before. Then, the icing on the cake was a couple with a one year old baby that literally cried and screamed for all but 15 minutes of the 5 hour flight to San Jose! Further, I couldn’t move my seat back even a millimeter because a car seat was placed from their window seat to the back of my seat! My Hawaiian flight was a freaking nightmare and fortunately will be flying back to Lihue direct with Alaska!

I only give it a bad rating because I missed my flight

Good. Night flight so tried to sleep most of the time. Very nice crew and smooth flight.

It was not clear the check in shd be at Hawaiian Terminal 1. I got dropped off at Alaska Terminal 2. I did the long walk from terminal 2 to 1. Fortunately I didn’t have a check in bag.

Unfortunately 4 hour 40 minute delay because of airport then one hour into flight diverted back to Kona elderly man on plane got heart attack trying to get home some how

Hawaiian Airlines, like most US-based ones, constantly provide sub-par service and pack their planes to the max with all kinds of last-minute-purchase schemes. As a result, it makes every flight so uncomfortable and generates high health risk for its passengers. In one word, GREED rules the day!

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

mandatory demand customer to check their carry on because not enough people check bags.

Connecting flight is on time and boarding was a breeze!

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

As always, the entire Southwest experience was perfect. Purchasing the tickets on the Southwest web site was effortless, departure and arrival gates were spotless and comfortable, plane was clean and comfortable, crew was excellent and flight was on time. Wheelchair service in Las Vegas at departure was somewhat chaotic and disjointed, but I am not sure if that was Southwest problem, airport problem or combination.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

The flight was an hour and a half late departing which was inconvenient

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

Flight attendants on this flight were very attentive and friendly

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

Everything you need to know for your flight from Kailua-Kona to Denver

Information on your arrival and departure airports

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