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Busan

$407+ Cheap flights from Denver (DEN) to Busan (PUS)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PUS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Denver to Busan

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Busan (PUS). 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 11, 2025.

Round-trip from

$1,185
(oojo)

One-way from

$407
(Kiwi.com)

Popular in

June

Cheapest in

May

Average price

$1,308
From Denver Intl to Busan Gimhae
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One-way flight from Denver Intl to Busan Gimhae
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Highest demand for flights based on searches. 15% potential increase in price ($269 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($130 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Denver to Busan

Cheapest flights from Denver to Busan
Explore the most affordable flight options available from Denver to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This oojo deal was found by Cheapflights users on 9/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:40 amDEN - PUS
2 stops41h 10mPhilippine Airlines
Wed 10/89:00 pmPUS - DEN
2 stops35h 44mPhilippine Airlines
Deal found 9/10$1,185
This oojo deal was found by Cheapflights users on 9/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:58 amDEN - PUS
2 stops40h 52mPhilippine Airlines
Sat 11/112:50 pmPUS - DEN
2 stops39h 21mPhilippine Airlines
Deal found 9/10$1,244
This Travelocity deal was found by Cheapflights users on 9/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:05 pmDEN - PUS
2 stops45h 35mMultiple Airlines
Mon 10/209:00 pmPUS - DEN
2 stops35h 44mMultiple Airlines
Deal found 9/10$1,877

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Busan 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 11, 2025.
Use the filters below to find and compare flights from Denver to Busan that are best for you.

Fly from

Denver

Fly to

Busan

Route

Depart

Return

Price

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Wed 10/1

11:40 am-7:50 pm

2 stops41h 10m

Busan Gimhae

Wed 10/8

9:00 pm-5:44 pm

2 stops35h 44m

$1,185

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Wed 10/15

11:58 am-7:50 pm

2 stops40h 52m

Busan Gimhae

Sat 11/1

12:50 pm-1:11 pm

2 stops39h 21m

$1,244

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Fri 10/10

6:05 pm-6:40 am

2 stops45h 35m

Busan Gimhae

Mon 10/20

9:00 pm-5:44 pm

2 stops35h 44m

$1,877

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Sun 3/1

7:15 pm-8:10 am

2 stops20h 55m

Busan Gimhae

Thu 3/5

12:00 pm-8:03 pm

2 stops24h 03m

$2,614

DenverBusan

DEN - PUS

DENPUS

Denver Intl

Tue 10/14

10:55 pm-3:05 pm

2 stops49h 10m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Denver to Busan

Have a flexible travel schedule? Discover the best time to fly to Busan from Denver 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.

Reviews of airlines servicing Busan

Get insights into the airlines that provide service to Busan. 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 Busan. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Korean Air from Denver to Busan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,139 reviews

Overall

8.4

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Overall

8.4

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

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

  • How long is the flight from Denver to Busan?

    A quick flight from Denver to Busan can take about 41h 10m. Philippine Airlines provides one of the quickest options available for as low as $1,185. Airlines will cover a distance of 6226 mi.

  • What is the cheapest airline to fly from Denver to Busan round-trip?

    Korean Air, at $1,322, was found to be the cheapest airline from Denver to Busan.. Korean Air is 10% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Denver to Busan that include hotel bookings?

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

  • How can I find direct flights from Denver to Busan?

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

  • Can I find deals for business class flights from Denver to Busan?

    Yes. Cheapflights offers flight deals from Denver to Busan 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 Denver to Busan?

    Currently, August is the cheapest month in which you can book a flight from Denver to Busan (average of $1,166). Flying from Denver to Busan in December is currently the most expensive (average of $2,244). 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

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Alternative routes for Denver to Busan

See prices for flight routes from nearby airports that may be better suited for you.
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Denver to Cheongju flights

Top airline flying from Denver to Busan

Discover the top airline that operate flights from Denver to Busan. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,322Average$1,823FlexibilityNo cancel feeOn-time81%

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