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£293 Cheap Flights from Denver (DEN) to Seoul (ICN)

View £293 flight on Thu, 6 Aug 2026Opens in a new window

Popular airlines from Denver International Airport (DEN) to Incheon Intl. Airport (ICN)

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Cheap Flights from Denver (DEN) to Seoul (ICN)

Prices were available within the past 7 days and start at £293 for one-way flights and £662 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Mon, 31 Aug - Sun, 13 Sept
DEN
Denver
ICN
Seoul
£662 Return, found 1 day ago
£662
Return
found 1 day ago
Select WestJet flight, departing Mon, 31 Aug from Denver to Seoul, returning Sun, 13 Sept, priced at £662 found 1 day ago
WestJet
Mon, 31 Aug - Sun, 13 Sept
DEN
Denver
ICN
Seoul
£800 Return, found 1 day ago
£800
Return
found 1 day ago
Select WestJet flight, departing Mon, 31 Aug from Denver to Seoul, returning Sun, 13 Sept, priced at £800 found 1 day ago
Alaska Airlines
Mon, 31 Aug - Sun, 13 Sept
DEN
Denver
ICN
Seoul
£863 Return, found 1 day ago
£863
Return
found 1 day ago
Select Alaska Airlines flight, departing Mon, 31 Aug from Denver to Seoul, returning Sun, 13 Sept, priced at £863 found 1 day ago
WestJet
Mon, 31 Aug - Sun, 13 Sept
DEN
Denver
ICN
Seoul
£874 Return, found 1 day ago
£874
Return
found 1 day ago
Select WestJet flight, departing Mon, 31 Aug from Denver to Seoul, returning Sun, 13 Sept, priced at £874 found 1 day ago
WestJet
Mon, 31 Aug - Sun, 13 Sept
DEN
Denver
ICN
Seoul
£889 Return, found 1 day ago
£889
Return
found 1 day ago
Select WestJet flight, departing Mon, 31 Aug from Denver to Seoul, returning Sun, 13 Sept, priced at £889 found 1 day ago
Alaska Airlines
Thu, 1 Oct - Thu, 8 Oct
DEN
Denver
ICN
Seoul
£895 Return, found 1 day ago
£895
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 1 Oct from Denver to Seoul, returning Thu, 8 Oct, priced at £895 found 1 day ago
Alaska Airlines
Mon, 31 Aug - Sun, 13 Sept
DEN
Denver
ICN
Seoul
£901 Return, found 1 day ago
£901
Return
found 1 day ago
Select Alaska Airlines flight, departing Mon, 31 Aug from Denver to Seoul, returning Sun, 13 Sept, priced at £901 found 1 day ago
Air Canada
Thu, 1 Oct - Thu, 8 Oct
DEN
Denver
ICN
Seoul
£1,084 Return, found 1 day ago
£1,084
Return
found 1 day ago
Select Air Canada flight, departing Thu, 1 Oct from Denver to Seoul, returning Thu, 8 Oct, priced at £1,084 found 1 day ago
Asiana Airlines
Mon, 31 Aug - Sun, 13 Sept
DEN
Denver
ICN
Seoul
£1,123 Return, found 1 day ago
£1,123
Return
found 1 day ago
Select Asiana Airlines flight, departing Mon, 31 Aug from Denver to Seoul, returning Sun, 13 Sept, priced at £1,123 found 1 day ago
Korean Air
Fri, 19 Mar - Sat, 3 Apr
DEN
Denver
ICN
Seoul
£1,354 Return, found 4 days ago
£1,354
Return
found 4 days ago
Select Korean Air flight, departing Fri, 19 Mar from Denver to Seoul, returning Sat, 3 Apr, priced at £1,354 found 4 days ago

Find the cheapest month to fly from Denver (DEN) to Seoul (ICN)

March is typically the cheapest month to fly

From £615 - £1,090 per traveller.

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) cost?
You can find one-way and return flights from DEN to ICN with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when DEN to ICN ticket fares go up or down.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
September is typically the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.), with average return fares around £874. September often sees lower prices as it falls outside peak holiday seasons, when demand tends to decrease. Other budget-friendly months to consider for this route include October and November.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
Enter DEN to ICN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
Turkish Airlines is one of the cheapest airlines offering connecting return flights from Denver Intl. (DEN) to Incheon Intl. (ICN), with tickets starting from around £873 for flights that can be booked for departure within the next year. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
The best time to fly from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) is typically September or October. These months offer a great balance, with return flight prices around £874.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
There are approximately 89 connecting flights per day from Denver International (DEN) to Seoul Incheon International (ICN). Some common connection points include Seattle - Tacoma International (SEA), Los Angeles International (LAX), and San Francisco International (SFO).
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
The earliest flight from Denver International Airport (DEN) to Incheon International Airport (ICN) typically departs around 12:20 AM local time, operated by Delta. This is a seasonal service, active only in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
You'll typically find the most flights from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) on a Sunday, with around 64 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Delta, and Southwest Airlines. Flight schedules are fairly consistent throughout the week, with Sunday offering only slightly more options than other days.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
The most popular departure times for flights from Denver Intl. (DEN) to Incheon Intl. (ICN) are in the morning, from 6am to 9am. Many major carriers, including Delta, Air Canada and United, offer flights during this window. Many travellers prefer this because it allows for an early start to their journey.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
There are no nonstop flights from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.). The journey covers a distance of approximately 9,963 kilometers. If you're looking for the quickest option, one-stop flights typically take around 19 hours 30 minutes. Flights with two or more stops will naturally take longer, usually around 22 hours 48 minutes. Keep in mind that these are average travel times, and your actual flight duration can vary depending on the specific routing, layover times, and even weather conditions.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
Yes, you can fly business class or first class between DEN and ICN. Airlines that offer business class service on this route include:
  • Turkish Airlines
  • Air France
  • Air Canada
  • Alaska Airlines
  • Delta
  • United
First class cabins are available on Delta and American Airlines.
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seoul (ICN) from Denver, CO (DEN)?
If you're planning to travel to Seoul from Denver Intl. (DEN), you can fly directly into Incheon Intl. (ICN) which offers international flights and connections. Some flights may connect through major hubs like Los Angeles Intl. (LAX), Seattle - Tacoma Intl. (SEA), or San Francisco Intl. (SFO) before reaching Seoul. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.)?
If you booked your Denver, CO (DEN-Denver Intl.) to Seoul (ICN-Incheon Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Incheon Intl.
Airlines serving
Aeromexico, Air Canada, Air China, Alaska Airlines, Asiana Airlines, China Airlines, Korean Air, Lufthansa
Return price
£661
Distance
9903 km

Book with confidence

Compare flights from Denver to Seoul easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Denver to Seoul. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Incheon Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Denver Intl. to Incheon Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Denver Intl. (DEN) to Incheon Intl. (ICN)

The easiest way to view the best deals on flights from Denver to Seoul today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Denver Intl. to Incheon Intl. start at just £662 and range up to £1,354.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Denver and Seoul
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Denver to Seoul flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Denver Intl. to Incheon Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Denver to Seoul easily and book with confidence

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*Available to Expedia members.