$377 Find Cheap Flights from Denver to South Korea

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to South Korea departing on 5/6. 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, 0 bags

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Cheap Flights from Denver to South Korea

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seoul
Incheon1 stop$995
Busan
Busan2 stops$1,060
Seoul
Incheon1 stop$995
Busan
Busan2 stops$1,060

Book Cheap Denver to South Korea Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to South Korea 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 Denver to South Korea

Fri, May 1 - Tue, May 12
Multiple Airlines Logo
6:00 am - 3:50 pm
DEN
-
ICN
18h 50m
1 stop
Multiple Airlines Logo
7:25 am - 9:52 am
ICN
-
DEN
41h 27m
2 stops
$995Multiple Airlines
Tue, Sep 8 - Wed, Sep 16
China Eastern Logo
6:30 am - 11:55 am
DEN
-
ICN
38h 25m
2 stops
China Eastern Logo
4:15 pm - 6:10 pm
ICN
-
DEN
40h 55m
2 stops
$998China Eastern
Thu, Sep 10 - Sun, Sep 20
China Eastern Logo
6:30 am - 11:00 am
DEN
-
GMP
37h 30m
2 stops
China Eastern Logo
8:50 pm - 6:10 pm
GMP
-
DEN
36h 20m
2 stops
$998China Eastern
Tue, Apr 28 - Tue, May 12
Multiple Airlines Logo
9:25 pm - 8:10 pm
DEN
-
ICN
31h 45m
1 stop
Multiple Airlines Logo
7:25 am - 9:52 am
ICN
-
DEN
41h 27m
2 stops
$1,003Multiple Airlines
Fri, May 1 - Wed, May 13
Multiple Airlines Logo
6:00 am - 3:50 pm
DEN
-
ICN
18h 50m
1 stop
Multiple Airlines Logo
8:00 am - 9:52 am
ICN
-
DEN
40h 52m
2 stops
$1,009Multiple Airlines
Tue, Apr 28 - Wed, May 13
Multiple Airlines Logo
9:25 pm - 8:10 pm
DEN
-
ICN
31h 45m
1 stop
Multiple Airlines Logo
8:00 am - 9:52 am
ICN
-
DEN
40h 52m
2 stops
$1,017Multiple Airlines
Wed, Oct 7 - Thu, Nov 5
Japan Airlines Logo
6:43 am - 9:15 pm
DEN
-
GMP
23h 32m
2 stops
Japan Airlines Logo
8:00 am - 3:54 pm
GMP
-
DEN
23h 54m
2 stops
$1,276Japan Airlines
Tue, Sep 22 - Wed, Sep 30
Japan Airlines Logo
7:30 am - 9:15 pm
DEN
-
GMP
22h 45m
2 stops
Japan Airlines Logo
7:15 pm - 5:30 pm
GMP
-
DEN
37h 15m
2 stops
$1,304Japan Airlines
Thu, Sep 10 - Mon, Sep 14
STARLUX Airlines Logo
7:28 pm - 5:55 pm
DEN
-
PUS
31h 27m
2 stops
STARLUX Airlines Logo
12:30 pm - 11:17 pm
PUS
-
DEN
25h 47m
2 stops
$1,370STARLUX Airlines
Thu, Sep 10 - Mon, Sep 14
STARLUX Airlines Logo
7:28 pm - 5:55 pm
DEN
-
PUS
31h 27m
2 stops
STARLUX Airlines Logo
12:30 pm - 11:17 pm
PUS
-
DEN
25h 47m
2 stops
$1,396STARLUX Airlines
Booking Insights

KAYAK's insights & trends for Denver to South Korea flights

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

What is the cheapest month to fly from Denver to South Korea?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to South Korea, 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 Denver to South Korea is September, when tickets cost $1,050 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of round-trip tickets is $1,820 and $1,631 respectively.

How far in advance should I book a flight from Denver to South Korea?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to South Korea, 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 Denver to South Korea, you should book around 2 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$421
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 25% increase in price.
Flight from Denver to Seoul Incheon Airport

FAQs - booking South Korea flights

  • Will I need a visa to fly from Denver to South Korea?

    Unless you're planning to stay in South Korea for more than 90 days, you won't need to get a visa to enter the country as an American citizen. You will, however, have the option to fill out the South Korea Electronic Travel Authorization (K-ETA), which will help you avoid having to complete an arrival card in South Korea.

  • Where will flights from Denver to South Korea make stops for layovers?

    Flights that travel from Denver to South Korea will need to make at least one stop. These stops will often occur at airports like Los Angeles International Airport (LAX), Seattle-Tacoma International Airport (SEA), Haneda Airport (HND), and Shanghai Pudong International Airport (PVG).

  • Which airlines serve the best food on flights from Denver to South Korea?

    Korean Airlines can help you prepare your palate for your trip by serving a variety of Korean staples on flights from Denver to South Korea. You can order dishes like ssambap, dotori mukbap, and bibim guksu.

  • Will I face baggage fees when checking bags on flights from Denver to South Korea?

    If you fly Economy Class from Denver to South Korea, you'll be subjected to baggage fees for each checked bag you bring. You can steer clear of these fees by flying Business Class or First Class, or by only bringing an appropriately sized carry-on bag onto your flight with an airline like China Eastern.

  • How does KAYAK find such low prices on flights from Denver to South Korea?

    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 Denver to South Korea.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Denver to South Korea 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 Denver to South Korea?

    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 from Denver to South Korea with an airline and back with another airline.

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

    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 from Denver to South Korea up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to South Korea

  • The distance between Denver and South Korea is more than 6,000 miles. However, many airlines can take you from Denver to South Korea if you would like to travel there. Air Canada, American Airlines, China Airlines, China Eastern, Korean Air, and United Airlines will all be in the mix and can be considered when you're shopping for a good deal on flights.
  • Most of the flights from Denver to South Korea that airlines offer will depart from Denver International Airport (DEN) and land at Incheon International Airport (ICN). It's the main airport in the Seoul area and airline hub for Korean Air, Asiana Airlines, Jin Air, and Jeju Air. But you can also consider flying to Gimhae International Airport (PUS), which is located in the southern part of the country.
  • There aren't any nonstop flights from Denver to South Korea, but you should be able to unearth at least a few one-stop options. For example, Delta has one-stop flights that will be scheduled to fly from Denver International Airport to Incheon International Airport in about 18 hours.
  • If you can fit it into your travel budget, flying first class from Denver to South Korea will be the way to go for many travelers. You'll get a lie-flat seat you can use to get some sleep and enough in-flight entertainment to stave off boredom when you book a first class flight with an airline like China Airlines or Korean Airlines.
  • Denver International Airport has lounges like the American Airlines Admirals Club, Delta Sky Club, United Club, and The Centurion Lounge that you can use to relax. You can get into some of these lounges when you're flying with a certain airline and others when you're willing to pay the cost to enter.

Reviews of the top 5 airlines serving from Denver to South Korea

 
Need help choosing which airline to fly with from Denver to South Korea? 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.
8.4
Korean AirOverall score based on 1208 reviews
8.2Entertainment
8.1Food
8.3Comfort
8.7Crew
8.5Boarding
Airline reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

10.0 ExcellentOmer, Mar 2026
MNL - ICN
Read more Korean Air reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

Humm, I should have known that the seat I peaked on my flight from Inchon to Manila was designed for a toddler or very small person.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

Kayak along with airfare assay are attempting to steal my money. Charges are being pressed.

Customer service and attention to details. The food was good.

Felt like the oldest plane in Asiana Fleet. Screen was 5-6in only and no charging at all. Movie selection wasn't great.

I’d have rated Asiana good except an unfortunate incident in which I felt one of your employee didn’t really help us. During the first leg of the trip, the flight from LAX to ICN, I left my backpack on the plane. When I realized, I reported to one of your employee who promised me that it’d be taken care of, that my backpack will be there at HCM city. When we arrived there, HCM people had no idea and my backpack was still at Incheon airport who denied any knowledge whatsoever. I was left in the cold and felt helpless. I was very disappointed. I’d like someone to look into this and let me know.

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Better screens, it would have been nice to have more comfortable seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

Boarding was good. The flight was on time ( arrival was 20 minutes early). Inflight service was average ( US airlines have not mastered the skills of customer service yet). The food was mediocre. “ breakfast “ was downright awful and insulting. It was a piece of dough with mon descript filling that was supposed to be cheese omelette).

The tray table was broken and the food was terrible.

The gentleman at the gate I think his name is RIE was exceptional

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

No entertainment. Plane was so small had to pink tag a carry on ive used for 20 years easily on board. The fact the flight got in at midnight, had to wait for crew in fort wayne to allow the plane to approach the gate, THEN had to wait for bag on jet bridge made experience irritating at best.

Crew was great. Near on time departure and early arrival. Snacks are always meh. Not a fan of the "pay for everything including miles " proposal unless base flight rate going to be 100 bucks.

Would have been better if there was a nonstop flight from Tampa to Norfolk or Tampa to New Port News.

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

The flight was smooth, the crew was great but the plane was quite old

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

My original flight was cancelled and then rebooked four hours later on a recovery flight, but I was checked in as stanby and had no seats so as a family of four we were concerned about not being seated altogether. Our flight then got delayed by another 1.5 hours and when seats were assigned at the gate, three of the four of us were together and we could get my wife closer, they offered no assistance.

I bought a ticket from Kayak. When I got to the airport, the was no ticket. I had to pay 5X to get to my destination. No response received from Kayak. I will NEVER use them again.

My wallet was stolen while I was sleeping on the plane.

Good boarding but extremely cold temperature in both flights (60 F!).

The whole plane smelled and felt old. The seats were very uncomfortable. Multiple delays. Extra fees.

Everything you need to know for your flight from Denver to South Korea

Information on your arrival and departure airports