Find Cheap Flights from Seoul to Denver (SEL - DEN)

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Seoul to Denver Flight Information

Flights Arrive in Denver International
Flights Depart from Seoul
Flight Price $726
Distance 6,166 miles
Airlines Asiana Airlines, Delta, Korean Air, Japan Airlines, ANA

Good to Know

Average Price:
$1186
(avg. price over the last 2 weeks)
Good Deal:
$990
or less (round trip)

When to Book Flights from Seoul to Denver

Estimated round-trip price
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $990 or less.
The cheapest flight from Seoul to Denver was found 39 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 19% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Seoul to Denver Flights

How long does a flight from Seoul to Denver take?
There are no direct flights for this route listed on KAYAK, the shortest multi-flight duration is 15h 01m.
Which airlines provide the cheapest flights from Seoul to Denver?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($726), Asiana Airlines ($875) and Delta ($989).
Do I need a passport to fly between Seoul and Denver?
Yes.
What’s the cheapest day of the week to fly Seoul to Denver?
For Seoul to Denver, Thursday is the cheapest day to fly on average and Friday is the most expensive. Flying from Denver back to Seoul, the best deals are generally found on Wednesday, with Friday being the most expensive.
Which airports will I be using when flying from Seoul to Denver?
When flying out of Seoul you will be using one of these airports: Seoul Gimpo Intl or Seoul Incheon Intl. You will be landing at Denver International, also known as Denver Airport.

Book cheap flights from Seoul to Denver (round-trip)

Airports
Origin
Seoul
$726
only
$726
$1074
only
$1074
Destination
Denver
$726
only
$726
Thu, May 9
ICN
Seoul Incheon Intl
DEN
Denver International
36h 58m
Mon, May 13
DEN
Denver International
ICN
Seoul Incheon Intl
54h 35m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 6
ICN
Seoul Incheon Intl
DEN
Denver International
16h 34m
Sun, Mar 10
DEN
Denver International
ICN
Seoul Incheon Intl
18h 25m
Trip: 4 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 3,840 reviews
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
8.0
Food
8.1
SFO
ICN
Excellent 8.6

Pros: Very nice crew.

Cons: Very limited options for food and entertainment. It is not the top-tier experience like Cathay or Singapore airlines. A good tier-2 airlines.

ICN
HNL
Excellent 9.3

Pros: I slept like a baby the whole way!

Cons: I don't care for the food. It upsets my stomache.

JFK
ICN
Good 7.0

Pros: Flight attendants were amazingly awesome !

Cons: Foooood Asiana airline foods are worst

ICN
NRT
Excellent 8.0

Pros: Even coach had plenty of room

Cons: Appreciate that there was food in flight but the taste left much to be desired. The entertainment selection was extremely sparse and could have been much better with English subtitles.

LAX
ICN
Excellent 8.6

Pros: Flight attendants are nice and working hard

Mon, May 13
ICN
Seoul Incheon Intl
DEN
Denver International
18h 14m
Sun, May 19
DEN
Denver International
ICN
Seoul Incheon Intl
29h 20m
Trip: 7 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 23,047 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
BNA
DTW
Good 7.0

Pros: Getting to my destination.

Cons: Leg room, more room for carry on bags, coats, etc.

SLC
JAC
Excellent 8.0

Pros: It was a quick service

Cons: Better food

AUS
ATL
Excellent 10.0

Pros: Getting offered a stipend to change flights - getting my preferred rental car

Cons: A direct flight

ATL
MSP
Excellent 10.0

Pros: My flight was missed due to immigration taking almost 3 hours to get through the line. Delta went out of their way to make sure that I was able to get to my destination on a later flight as comfortable as possible.

Cons: Maybe not traveling through Atlanta if there is immigration clearance involved. I was really slow.

MSP
IAH
Okay 5.3

Cons: Old plane, long delay, sketchy WiFi.

Sat, May 11
ICN
Seoul Incheon Intl
DEN
Denver International
17h 45m
Fri, May 17
DEN
Denver International
ICN
Seoul Incheon Intl
17h 35m
$1056
Trip: 7 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 4,448 reviews
Overall
8.8
Boarding
8.8
Comfort
8.6
Crew
9.1
Entertainment
8.6
Food
8.5
HNL
NRT
Excellent 9.3

Pros: Clean comfortable

Cons: Vegan meal option needs more veggies

HND
ICN
Excellent 10.0

Pros: The service is always way better than American flying

ICN
SEA
Okay 4.0

Pros: The flight was shared with Delta airlines on a Delta plane, terrible arrangements. Small seats, poor service, poor entertainment, very bad experience.

Cons: It could have been better if it was a Korean Air flight.

ICN
YVR
Excellent 10.0

Pros: Very comfortable seats. Ability to pre-order meals to meet dietary restrictions.

Cons: Another protein choice to go with fruit tray. More offers of water and other drinks throughout the flight.

NRT
HNL
Excellent 9.0

Pros: excellent service - good food

Cons: aircraft a bit outdated

Wed, Jun 5
GMP
Seoul Gimpo Intl
DEN
Denver International
22h 12m
Fri, Jun 14
DEN
Denver International
GMP
Seoul Gimpo Intl
19h 45m
$1074
Trip: 10 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 3,993 reviews
Overall
8.9
Boarding
8.9
Comfort
8.6
Crew
9.1
Entertainment
8.6
Food
8.5
MSJ
HND
Excellent 8.0

Pros: Everything

Cons: Nothing

SAN
NRT
Good 7.0

Pros: Very professional staff, smooth boarding process.

Cons: Uncomfortably hot throughout flight. My entertainment system was out of sync, so some movies wouldn't play and the others would link to something completely different. My companion's systems appeared to work fine, so we took turns switching seats to use the one entertainment system.

HND
OKJ
Excellent 10.0

Pros: Excellent service. Flight attendants had high standered. Clean, comfortable and very efficient boarding process. Loved it.

Cons: Nothing.

NRT
ITM
Excellent 8.5

Pros: On time. Boarding was great. Flight wasn’t full so plenty of room to stretch out.

JFK
HND
Good 7.0

Pros: Food was great

Cons: It’s 14h flight. I wanted more water. I had to keep asking but the size was too small... I didn’t want orange or apple juice....

Fri, May 31
ICN
Seoul Incheon Intl
DEN
Denver International
62h 57m
Sat, Jun 8
DEN
Denver International
ICN
Seoul Incheon Intl
36h 28m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 5
ICN
Seoul Incheon Intl
DEN
Denver International
19h 56m
Fri, Jun 14
DEN
Denver International
ICN
Seoul Incheon Intl
29h 20m
Trip: 10 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 3,840 reviews
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
8.0
Food
8.1
ICN
JFK
Okay 4.0

Pros: Cabin, seat, and aircraft comfortable but not at all luxurious.

Cons: Service was really bad, the toilets were filthy; in this regard probably the worst business class experience in recent years.

ICN
JFK
Excellent 8.6

Pros: Staff friendliness, leg room

Cons: No sleeping eyepatch

MNL
ICN
Excellent 8.6

Cons: No phone charger.

SEA
ICN
Good 6.0

Pros: I'll give a more complete and less-biased review if I get it back!

ICN
LAX
Good 6.0

Pros: The price. Significantly cheaper than our normal ride on EVA through Taipei. Having said that...won't do it again.

Cons: We travel between the US and Asia a couple of times a year and normally fly on EVA, who has wonderful service and great food. We took Asiana this time because the ticket price was significantly less than EVA. Below are the reasons we won't do it again. 1. The food was awful. My wife had the Asian dishes and I had the Western dishes. Both were well below the quality of food we're used to on EVA. 2. Transit in Seoul. On the way to Bangkok from LA we had 50 minutes to transit Seoul to our next flight. The transit security line was quite long and it was obvious that we, along with a few dozen other passengers, weren't going to be able to make the connection. After much complaining from us and our fellow passengers they ran us through another security line. Rushed to the airplane and made it. On returning to LA from Bangkok it was exactly the opposite. The only option was nearly 8 hours connection in Seoul. But we had plenty of time to negotiate the transit security line. These connect times did not occur because of a last-minute ticket purchase. I purchased these tickets in July for a December/January flight to Bangkok and return. 3. Inflight service was not at the level of EVA. Like any other Asian carrier, the flight attendants were light years ahead of ANY US airline crew, but below the standard of EVA. Waking you up to eat a meal (I typically don't eat dinner at 1AM), etc. I was sleeping with my seat reclined and the flight attendant took it upon herself to upright my seat at meal time and woke me up, presumably so the person in the seat behind me was more comfortable with space to eat their meal, but hey...I purchased the seat to sleep just like the other passenger purchased the seat to eat, so I think I had just as much right to "my space and comfort" as the other passenger did. Just little stuff that doesn't happen on EVA. 4. Inflight entertainment is lacking as compared to EVA. Few movie and TV choices, few game choices. 5. We sat in economy. The seats were not very comfortable. Seems the cushions were thin and it became like sitting on plywood after a while. Legroom on the 747 flight wasn't so great, but there was plenty of legroom on the A380. The A380 seating was still kinda hard, but the legroom sure helped. 6. Boarding process. Poorly organized. Nobody pays a bit of attention to "boarding by row number". Consequently it's a bit of chaos during boarding. The old saying, "you get what you pay for" is true. For a flight of that length I won't choose to save the $200 or so per ticket and will ride on EVA. We've proven to ourselves that EVA is just pretty hard to beat.

Sun, Jun 9
ICN
Seoul Incheon Intl
DEN
Denver International
53h 48m
Sun, Jun 16
DEN
Denver International
ICN
Seoul Incheon Intl
30h 35m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, May 31
GMP
Seoul Gimpo Intl
DEN
Denver International
19h 56m
Sat, Jun 8
DEN
Denver International
GMP
Seoul Gimpo Intl
21h 35m
$1914
Trip: 9 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 4,073 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.1
Entertainment
8.4
Food
8.4
DEL
NRT
Excellent 8.0

Pros: Service, crew, seats, punctuality

Cons: Bad food, cold coffee and tea.

HND
ORD
Excellent 8.6

Pros: Staff was great!

Cons: Food wasn’t the best.

MNL
HND
Okay 5.6

Pros: Crew was good. The food was good quality.

Cons: Boarding took along time and then the plane was delayed, not their fault but it made the trip less enjoyable. Manila is a poor hub.

MNL
NRT
Excellent 9.3

Pros: The flight was relaxing and the layover in Tokyo was brief and comfortable.

NRT
SIN
Mediocre 3.6

Pros: Nothing

Cons: They should’ve let us wait in the boarding room instead we all waited in the flight cabin, in our seats for 5.5 hours during the entire time of the flight delay. It was really terrible.

Wed, May 15
ICN
Seoul Incheon Intl
DEN
Denver International
23h 14m
Sun, May 19
DEN
Denver International
ICN
Seoul Incheon Intl
31h 37m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 23,047 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
RDU
CLE
Mediocre 2.0

Pros: Very bad crew. Seats very uncomfortable

Cons: Crew could have been better

JFK
RDU
Okay 5.6

Pros: Boarding process was smooth.

Cons: In flight service was disappointing.

PVR
ATL
Excellent 8.0

Cons: Boarding was a little confusing with seats not being assigned ahead of time

LHR
MSP
Excellent 9.3

Pros: The crew were kind and courteous. The seat was comfortable.

PHF
ATL
Excellent 10.0

Cons: Great early morning flight.

Tue, Mar 5
ICN
Seoul Incheon Intl
DEN
Denver International
21h 05m
Thu, Apr 25
DEN
Denver International
ICN
Seoul Incheon Intl
30h 20m
Trip: 51 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 13
ICN
Seoul Incheon Intl
DEN
Denver International
15h 02m
Sat, May 18
DEN
Denver International
ICN
Seoul Incheon Intl
18h 25m
Trip: 6 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 3,840 reviews
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
8.0
Food
8.1
HAN
ICN
Good 7.3

Pros: Crew team is nice and friendly.

LAX
ICN
Excellent 10.0

Pros: Exellent food service and comfort Will use Asiana in my future travels Had my best travel experience in years

SEA
ICN
Excellent 8.0

Pros: Good leg room, nice food, and friendly professional staff.

Cons: Boarding process was chaotic.

ICN
HKG
Okay 4.0

Cons: The crew didn’t help on putting my carry on luggage into the overhead cabinet, I’m not tall enough to do this so I dropped my carry on luggage on the floor. Luckily didn’t hurt any people and a Hong Kong lady helped me on this. Besides, One of my luggage was missing, I’m still waiting for them to let me know where my luggage is. This is the first time I took Asiana Airline, according to all those bad experiences, I doubt whether I’ll take Asiana Airline again.

LAX
ICN
Excellent 8.6

Pros: Flight attendants are nice and working hard

Sun, May 12
ICN
Seoul Incheon Intl
DEN
Denver International
15h 05m
Fri, May 17
DEN
Denver International
ICN
Seoul Incheon Intl
17h 35m
$1056
Trip: 6 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 4,448 reviews
Overall
8.8
Boarding
8.8
Comfort
8.6
Crew
9.1
Entertainment
8.6
Food
8.5
ATL
ICN
Excellent 10.0

Pros: Great customer service on the plane and in person.

Cons: Very long trip.

TPE
ICN
Excellent 10.0

Pros: Boarding services

Cons: On-line cellphone app interface in mandarin version could be better.

ICN
MNL
Excellent 9.6

Pros: Same as the first flight. Korean flight attendants were very courteous and helpful. Foods ok. We couldn’t afford first or prestige class so we have to trade in our comfort in economy.

Cons: Flight wasn’t as long but if you add up the lay over time, it end up being long.

WUH
ICN
Excellent 10.0

Pros: This was the big league of airlines. Great staff, presentation, service, food, entertainment. Felt appreciated as a customer during the entire experience.

Cons: Extra checked bag fee was very costly, nearly $100.00 (CAD).

ICN
SEA
Excellent 9.3

Pros: Professionalism, appearance, flight attendants, provided slippers and toothbrush, seat space, great food and drinks

Cons: The movie selection was small and a bit outdated

Wed, Mar 20
GMP
Seoul Gimpo Intl
DEN
Denver International
23h 23m
Sun, Mar 24
DEN
Denver International
GMP
Seoul Gimpo Intl
26h 16m
$1112
Trip: 5 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 3,993 reviews
Overall
8.9
Boarding
8.9
Comfort
8.6
Crew
9.1
Entertainment
8.6
Food
8.5
SAN
NRT
Okay 4.0

Pros: Sturdest were very kind

Cons: There was 2 choices for food either pork or chicken But when I asked for chicken they told us no more chicken Then they took the pork from the tray and I had to eat the rest without the main course. Also all the seats were taken by the people who bought the tickets directly from JAL,but there was few seats left all in the middle for people who purchase tickets from travel agents.

HND
SFO
Good 7.3

Pros: Crew was courteous. Flight in general was uneventful which is a good thing.

Cons: Nothing to criticize. Flight experience was good but not exordinary.

MNL
NRT
Excellent 8.0

Pros: Crew very helpful. Seat roomy.

NRT
SGN
Excellent 10.0

Pros: crew was professional, attentive and polite

MSJ
HND
Excellent 8.0

Pros: Everything

Cons: Nothing

Fri, May 17
ICN
Seoul Incheon Intl
DEN
Denver International
34h 49m
Sat, Jun 1
DEN
Denver International
ICN
Seoul Incheon Intl
18h 35m
Trip: 16 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 3,840 reviews
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
8.0
Food
8.1
ICN
LAX
Good 6.3

Pros: Plane was on time and crew was courteous

Cons: Crew didn't come through the cabin enough to offer water and drinks.

SFO
ICN
Excellent 8.6

Pros: Very nice crew.

Cons: Very limited options for food and entertainment. It is not the top-tier experience like Cathay or Singapore airlines. A good tier-2 airlines.

SEA
ICN
Good 6.3

Pros: N/A

Cons: More subtitled movies in English.

CDG
ICN
Good 6.0

Pros: Food and service was excellent

Cons: No wifi, the entertainment unit required a dual jack head phone set and I couldn’t use my noise canceling headphones. Also had to pay 150 dollars for my 2nd bag. Way too expensive!

ICN
LAX
Excellent 10.0

Pros: Airplane and service

Cons: None. Maybe save money and ride first class

Sun, Mar 3
ICN
Seoul Incheon Intl
DEN
Denver International
15h 01m
Mon, Mar 11
DEN
Denver International
ICN
Seoul Incheon Intl
17h 45m
$1064
Trip: 8 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 4,448 reviews
Overall
8.8
Boarding
8.8
Comfort
8.6
Crew
9.1
Entertainment
8.6
Food
8.5
ICN
SEA
Excellent 9.3

Pros: Professionalism, appearance, flight attendants, provided slippers and toothbrush, seat space, great food and drinks

Cons: The movie selection was small and a bit outdated

LAX
ICN
Excellent 9.3

Pros: Excellent service and probably the most efficient boarding process I’ve ever been a part of. Food service went by without a hitch, and the stewardesses knew English very well so we felt comfortable and welcomed. I also really liked being able to get terminal/travel information from the infotainment system. Being that I’ve never been to ICN or NRT before, having access to terminal maps and basic instructions on how to find connecting flights and baggage claim areas was probably one of the most helpful features of the flight!

Cons: I am 5’11” and found my seat somewhat uncomfortable. It didn’t detract from being able to sleep at all, but it did seem like the seats on this airline might be at its most comfortable with shorter passengers.

JFK
ICN
Excellent 10.0

Pros: The employees were soooo nice and friendly

Cons: Wheelchair service

MNL
ICN
Excellent 8.6

Pros: Exceptionally trained and attentive staff. Clean plane.

Cons: More entertainment options.

SFO
ICN
Excellent 9.0

Pros: Crews were all amazing!

Cons: Boarding was not announced clearly

Fri, May 10
ICN
Seoul Incheon Intl
DEN
Denver International
21h 37m
Mon, May 13
DEN
Denver International
ICN
Seoul Incheon Intl
22h 28m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 5
ICN
Seoul Incheon Intl
DEN
Denver International
34h 50m
Sun, Apr 14
DEN
Denver International
ICN
Seoul Incheon Intl
18h 25m
Trip: 10 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 3,840 reviews
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
8.0
Food
8.1
SEA
ICN
Excellent 10.0

Pros: Best flight I’ve ever been on!

Cons: It had just snowed 20” in Seattle, so we had a short delay.

SEA
ICN
Excellent 10.0

Pros: They are accommodating and respectful

Cons: Fair enough

ICN
BKK
Excellent 8.6

Pros: Superb business class seats

Cons: Entertainment (movie) choices could be better.

ICN
HKG
Okay 4.0

Cons: The crew didn’t help on putting my carry on luggage into the overhead cabinet, I’m not tall enough to do this so I dropped my carry on luggage on the floor. Luckily didn’t hurt any people and a Hong Kong lady helped me on this. Besides, One of my luggage was missing, I’m still waiting for them to let me know where my luggage is. This is the first time I took Asiana Airline, according to all those bad experiences, I doubt whether I’ll take Asiana Airline again.

ICN
ORD
Excellent 10.0

Pros: Leg room. Food was pretty good all things considered

Thu, May 9
GMP
Seoul Gimpo Intl
DEN
Denver International
22h 12m
Mon, May 13
DEN
Denver International
GMP
Seoul Gimpo Intl
21h 00m
$1166
Trip: 5 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 3,993 reviews
Overall
8.9
Boarding
8.9
Comfort
8.6
Crew
9.1
Entertainment
8.6
Food
8.5
NRT
BKK
Excellent 10.0

Pros: Everything about this flight was awesome. The food, the people, the seats in economy felt like first class. VERY polite and happy attendants compared to American Airlines who seemed to be annoyed by those on the flight.

NRT
HKG
Excellent 10.0

Pros: Nice seats. Ample leg room.

NRT
SGN
Excellent 10.0

Pros: crew was professional, attentive and polite

BKK
HND
Excellent 9.0

Pros: Overall is good :)

MNL
NRT
Excellent 8.0

Pros: Crew very helpful. Seat roomy.

Sat, May 11
ICN
Seoul Incheon Intl
DEN
Denver International
19h 11m
Sun, May 19
DEN
Denver International
ICN
Seoul Incheon Intl
19h 10m
$1122
Trip: 9 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 4,448 reviews
Overall
8.8
Boarding
8.8
Comfort
8.6
Crew
9.1
Entertainment
8.6
Food
8.5
ICN
YVR
Excellent 10.0

Pros: Very comfortable seats. Ability to pre-order meals to meet dietary restrictions.

Cons: Another protein choice to go with fruit tray. More offers of water and other drinks throughout the flight.

MNL
ICN
Excellent 8.6

Pros: Exceptionally trained and attentive staff. Clean plane.

Cons: More entertainment options.

ICN
DFW
Excellent 10.0

Pros: service, food, kindness

Cons: none

NRT
HNL
Excellent 9.0

Pros: excellent service - good food

Cons: aircraft a bit outdated

SFO
ICN
Excellent 9.0

Pros: Crews were all amazing!

Cons: Boarding was not announced clearly

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