Find Cheap Flights from Seoul Incheon Intl Airport to Washington Dulles Intl (ICN - IAD)

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Good to Know

Low Season:
March
Best time to beat the crowds
2%
expected price decrease
High Season:
August
Most popular time to fly
11%
expected price increase
Average Price:
$1629
(avg. price over the last 2 weeks)
Good Deal:
$1130
or less (round trip)

When to Book Flights from Seoul Incheon Intl Airport to Washington Dulles Intl

Average price per month
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 $1130 or less.
The cheapest flight from Seoul Incheon Intl Airport to Washington Dulles Intl was found 90 days before departure, on average.
Book at least 4 weeks before departure in order to get a below-average price.
High season is considered to be July, August and September. The cheapest month to fly is March.
Morning departure is around 5% more expensive 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 Incheon Intl Airport to Washington Dulles Intl Flights

How long does a flight from Seoul Incheon Intl Airport to Washington Dulles Intl take?
An average nonstop flight takes 29h 58m, covering a distance of 6942 miles.
How many flights are there between Seoul Incheon Intl Airport and Washington Dulles Intl?
There are 14 (nonstop) flights between Seoul Incheon Intl Airport and Washington Dulles Intl per week, averaging 2 per day.
Which airlines provide the cheapest flights from Seoul Incheon Intl Airport to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Air China ($578) and Multiple Airlines ($762)
Do I need a passport to fly between Seoul Incheon Intl Airport and Washington Dulles Intl?
Yes.
Which airlines fly most frequently between Seoul Incheon Intl Airport and Washington Dulles Intl?
Delta (1 times daily), Korean Air (1 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Seoul Incheon Intl Airport to Washington Dulles Intl?
For Seoul Incheon Intl Airport to Washington Dulles Intl, Monday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Washington Dulles Intl back to Seoul Incheon Intl Airport, the best deals are generally found on Monday, with Sunday being the most expensive.

Book cheap flights from Seoul Incheon Intl Airport to Washington Dulles Intl (round-trip)

Airports
Origin
Seoul
$578
only
$578
Destination
Washington
$578
only
$578
Mon, Dec 18
ICN
IAD
36h 25m
Tue, Jan 9
IAD
ICN
35h 15m
Trip: 23 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3245 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
LAX
PEK
Mediocre 3.0

The crew were nice

The food was terrible. There were no amenedies for flying internationally like I am used to. And the movies available?! Usually international flights have all kinds of movies to watch. There were only a few that is even heard of.

MNL
PEK
Good 6.3

Better than the New Jersey flight to Beijing more food this time from Beijing to Houston staff was very nice and friendly

Seats too small me too big lol

IAD
PEK
Good 7.3

I have flown with Air China before and had a bad experience. They are improving everything from customer service to in-flight amenities. Transfers in Beijing are still a problem with zero efficiency.

They don't honor seat selection when booking but attendant at gate helped and was very understanding.

NRT
PEK
Good 7.6

Most of the staff was very helpful and accommodating. On the first leg of the flight one of the attendants even suggested a wine with dinner, a very kind gesture.

When my husband and I went to check in for our flight at the desk we had to wait very long time to get checked in. We noticed that one of the girls was in training, which is understandable but just inconvenient. We are both very patient people but this just made us nervous because our first flight on Air China to Japan on 10/26/17 was very delayed and caused us to have to literally run and still go through a rigorous security check. We were not rushed through the line even though we had nothing to do with our flight being delayed on our second leg. We then had to wait in another long line for security even after arriving into China on our flight back. There was also someone on board before take off with a medical problem and we could tell that some of the patrons started getting a bit aggressive or irritable. I don’t think the crew could’ve done much in that regard but wish the issue had been resolved a little quicker. I believe it was a 40 minute delay in take off.

PEK
BKK
Okay 5.6

The flight waited which I'm sure is a complaint by others. This is due to the very inefficient transfer process in Beijing.

Zero entertainment. I know it's only a 4-5 hour flight but still.

Fri, Jan 12
ICN
IAD
41h 56m
Thu, Jan 25
IAD
ICN
38h 49m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Dec 24
ICN
IAD
36h 25m
Sat, Jan 13
IAD
ICN
35h 15m
Trip: 21 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3245 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
PEK
BKK
Okay 5.6

The flight waited which I'm sure is a complaint by others. This is due to the very inefficient transfer process in Beijing.

Zero entertainment. I know it's only a 4-5 hour flight but still.

PEK
SGN
Mediocre 3.0

The crew were nice

Again the food was terrible. And this was an international flight and there wasn’t even a tv for watching movies! So all you could do was sit crammed in your seat for hours!!

SGN
PEK
Mediocre 3.6

The food was good for airplane food.

It makes no sense to not allow the use of any electronics during take off and landing. My E reader doesn't even use a cell signal, but I couldn't have it out. Also, not allowing cell phones at ANY time during the flight, even in airplane mode, is ridiculous because tablets, which can have cell signals, are allowed. Air China is just frustrating.

PEK
LAX
Good 6.6

Most of the staff was very helpful and accommodating. On the first leg of the flight one of the attendants even suggested a wine with dinner, a very kind gesture.

When my husband and I went to check in for our flight at the desk we had to wait very long time to get checked in. We noticed that one of the girls was in training, which is understandable but just inconvenient. We are both very patient people but this just made us nervous because our first flight on Air China to Japan on 10/26/17 was very delayed and caused us to have to literally run and still go through a rigorous security check. We were not rushed through the line even though we had nothing to do with our flight being delayed on our second leg. We then had to wait in another long line for security even after arriving into China on our flight back. There was also someone on board before take off with a medical problem and we could tell that some of the patrons started getting a bit aggressive or irritable. I don’t think the crew could’ve done much in that regard but wish the issue had been resolved a little quicker. I believe it was a 40 minute delay in take off.

MNL
PEK
Good 6.3

Better than the New Jersey flight to Beijing more food this time from Beijing to Houston staff was very nice and friendly

Seats too small me too big lol

Fri, Apr 20
ICN
IAD
36h 05m
Fri, May 4
IAD
ICN
31h 00m
Trip: 15 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3245 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
NRT
PEK
Good 7.6

Most of the staff was very helpful and accommodating. On the first leg of the flight one of the attendants even suggested a wine with dinner, a very kind gesture.

When my husband and I went to check in for our flight at the desk we had to wait very long time to get checked in. We noticed that one of the girls was in training, which is understandable but just inconvenient. We are both very patient people but this just made us nervous because our first flight on Air China to Japan on 10/26/17 was very delayed and caused us to have to literally run and still go through a rigorous security check. We were not rushed through the line even though we had nothing to do with our flight being delayed on our second leg. We then had to wait in another long line for security even after arriving into China on our flight back. There was also someone on board before take off with a medical problem and we could tell that some of the patrons started getting a bit aggressive or irritable. I don’t think the crew could’ve done much in that regard but wish the issue had been resolved a little quicker. I believe it was a 40 minute delay in take off.

SGN
PEK
Mediocre 3.6

The food was good for airplane food.

It makes no sense to not allow the use of any electronics during take off and landing. My E reader doesn't even use a cell signal, but I couldn't have it out. Also, not allowing cell phones at ANY time during the flight, even in airplane mode, is ridiculous because tablets, which can have cell signals, are allowed. Air China is just frustrating.

LAX
PEK
Mediocre 3.0

The crew were nice

The food was terrible. There were no amenedies for flying internationally like I am used to. And the movies available?! Usually international flights have all kinds of movies to watch. There were only a few that is even heard of.

PEK
IAH
Excellent 9.3

Every crew member was so nice and attentive.

There really isn't anything to complain. My flight experience was great

PEK
BKK
Okay 5.6

The flight waited which I'm sure is a complaint by others. This is due to the very inefficient transfer process in Beijing.

Zero entertainment. I know it's only a 4-5 hour flight but still.

Mon, Jan 8
ICN
IAD
33h 25m
Tue, Jan 16
IAD
ICN
32h 35m
Trip: 9 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3245 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
HND
PEK
Mediocre 2.0

Doesn't matter if your economy or first class. First one to the gate gets in. Good for me because I always fly economy.

Typical Chinese service, poor. Will never fly Air China ever again. Only reason why I book the ticket because it was cheap, now I know why.

PEK
IAH
Excellent 9.3

Every crew member was so nice and attentive.

There really isn't anything to complain. My flight experience was great

PEK
IAH
Mediocre 2.0

Doesn't matter if your economy or first class. First one to the gate gets in. Good for me because I always fly economy.

Typical Chinese service, poor. Will never fly Air China ever again. Only reason why I book the ticket because it was cheap, now I know why.

NRT
PEK
Good 7.6

Most of the staff was very helpful and accommodating. On the first leg of the flight one of the attendants even suggested a wine with dinner, a very kind gesture.

When my husband and I went to check in for our flight at the desk we had to wait very long time to get checked in. We noticed that one of the girls was in training, which is understandable but just inconvenient. We are both very patient people but this just made us nervous because our first flight on Air China to Japan on 10/26/17 was very delayed and caused us to have to literally run and still go through a rigorous security check. We were not rushed through the line even though we had nothing to do with our flight being delayed on our second leg. We then had to wait in another long line for security even after arriving into China on our flight back. There was also someone on board before take off with a medical problem and we could tell that some of the patrons started getting a bit aggressive or irritable. I don’t think the crew could’ve done much in that regard but wish the issue had been resolved a little quicker. I believe it was a 40 minute delay in take off.

PEK
BKK
Okay 5.6

The flight waited which I'm sure is a complaint by others. This is due to the very inefficient transfer process in Beijing.

Zero entertainment. I know it's only a 4-5 hour flight but still.

Wed, Feb 28
ICN
IAD
29h 58m
Wed, Mar 7
IAD
ICN
32h 09m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Dec 17
ICN
IAD
38h 30m
Sun, Dec 31
IAD
ICN
30h 15m
Trip: 15 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3245 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
PEK
IAH
Excellent 9.3

Every crew member was so nice and attentive.

There really isn't anything to complain. My flight experience was great

SGN
PEK
Mediocre 3.6

The food was good for airplane food.

It makes no sense to not allow the use of any electronics during take off and landing. My E reader doesn't even use a cell signal, but I couldn't have it out. Also, not allowing cell phones at ANY time during the flight, even in airplane mode, is ridiculous because tablets, which can have cell signals, are allowed. Air China is just frustrating.

PEK
SGN
Mediocre 3.0

The crew were nice

Again the food was terrible. And this was an international flight and there wasn’t even a tv for watching movies! So all you could do was sit crammed in your seat for hours!!

HND
PEK
Mediocre 2.0

Doesn't matter if your economy or first class. First one to the gate gets in. Good for me because I always fly economy.

Typical Chinese service, poor. Will never fly Air China ever again. Only reason why I book the ticket because it was cheap, now I know why.

LAX
PEK
Mediocre 3.0

The crew were nice

The food was terrible. There were no amenedies for flying internationally like I am used to. And the movies available?! Usually international flights have all kinds of movies to watch. There were only a few that is even heard of.

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