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Flights operate between Seattle (SEA) and Jung-gu (ICN).

1 airline operates this route with 4-5 flights daily flights.

Average flight time is 11h 20m - 12h 20m.

Route distance is 5232 miles (8418 km).

Route Distance

5232 miles (8418 km)

Average Duration

11h 20m - 12h 20m

Airlines Operating This Route

Korean Air

Flight Frequency

Daily Flights

4-5 flights

Weekly Flights

24

Typical Departure Time Ranges

Earliest Departure

11:00

Latest Departure

11:00

Route Intelligence Dashboard

Overall Connectivity Score

35

Moderate
Route Diversity

1

Direct Routes

Korean Air serves 1 destination from SEA

Weekly Frequency

7

Weekly Flights

Trend: Stable

Top 1 Most Frequent Routes - Details
RouteWeekly FlightsDurationDistanceReliability
SEAJung-gu (ICN) (ICN)
7/week
11h 20m - 12h 20m5,232 km
Seasonal
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Flight Schedule & Filters

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Korean Air flights from SeaTac (SEA) to Jung-gu (ICN)

Korean Air operates scheduled nonstop flights between SeaTac (SEA) and Jung-gu (ICN). Korean Air operates 4-5 flights daily flights on this route.Flight Duration: 11h 20m - 12h 20m (average flight time)Distance: 5232 miles (8418 km) (air miles between airports)Daily Flights: 4-5 flights (scheduled departures per day)

SEA
SeaTac (SEA)

US

ICN
Jung-gu (ICN)

KR

FLIGHT TIME

11h 20m - 12h 20m

FLIGHT DISTANCE

5232 miles (8418 km)
Flight time
11h 55m - 11h 55m
Earliest flight
11:00
Last flight
11:00
Distance
5232 miles (8418 km)
Cheapest month
October
Airlines
1 (Show)
Flights per week
24

Korean Air Terminal Information & Contact

Departure Terminal - SeaTac (SEA)

Terminal: 1

Phone: 800 438-5000

Location: 1, Seattle, US

Arrival Terminal - Jung-gu (ICN)

Terminal: 1

Phone: 8 222 656 2001

Location: 1, Seoul, KR

Korean Air Flight Schedule from SeaTac (SEA) to Jung-gu (ICN)

FlightAirlineDepartureArrivalAircraft

KE42

Korean Air

Korean Air

11:00

15:55:00

Boeing 787-10

Korean Air Monthly Flight Calendar

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View all 3 flights from SeaTac (SEA) to Jung-gu (ICN) operated by 3 airlines

Korean Air Terminal Information

Departure Terminal at SeaTac (SEA):

Terminal 1:

Korean Air Terminal Phone: 800 438-5000

Arrival Terminal at Jung-gu (ICN):

• Terminal : Korean Air operates from this terminal

Terminal 1:

Korean Air Terminal Phone: 8 222 656 2001

Weather & Climate at Jung-gu (ICN)

12.5°C

Avg Temperature

127mm

Avg Rainfall

17.6km/h

Avg Wind Speed

79%

Avg Humidity

Best Months to Visit

Challenging Months

12-Month Weather Overview

Wind Speed by Month

Humidity by Month

Best Time to Book Flights to Jung-gu (ICN)

Best Booking Window

Book 2-3 months in advance for best prices

Booking Tip

Avoid booking during extreme weather months for better deals

Peak Travel Months

2025-05
2025-06
2025-07
2025-08

Expect higher prices and more crowds during these months. Book early to secure better rates.

Recommended Months

2025-01
2025-02
2025-03

These months offer the best balance of weather, prices, and availability.

Monthly Booking Recommendations

Recommended - Best Value
Peak - Book Early
Normal

Flight Price Trends for Jung-gu (ICN)

Cheapest Months to Fly

2023-01
2023-02
2023-03

Book flights during these months for the best deals and lowest prices.

Most Expensive Months

2023-05
2023-06
2023-07
2023-08

Prices are typically highest during these months. Consider booking well in advance or choosing alternative dates.

Price Trend Analysis

Prices are typically lower during shoulder seasons

Monthly Price Trends

Cheapest - Best Deals
Expensive - Higher Prices
Normal Prices

Best Months to Fly Korean Air to Jung-gu (ICN)

Shoulder Season

2025-01
2025-02
2025-03
2025-04
2025-09
2025-10
2025-11
2025-12

Transition periods with moderate conditions. Good balance of price and experience.

Challenging Months

2025-05
2025-06
2025-07
2025-08

These months may have less favorable conditions. Plan accordingly and book early.

Extreme Conditions

2025-07
2025-08

These months may have extreme weather or conditions. Travel with caution and proper preparation.

Seasonal Insight

Best travel months: Year-round

Seasonal Travel Calendar

Best - Optimal Conditions
Shoulder - Good Value
Challenging
Extreme - Use Caution

Korean Air Contact Information and Customer Services

Korean Air Address

9th floor of Korean Air Building, 117 Seosomun-Ro (3-41, Seosomun-dong), Chung-gu,
Seoul 400-700, South Korea

Customer Service Phone

+82 22 656 20 01

Official Website

koreanair.com/

Follow Korean Air on Social Media

Instagram

Twitter

YouTube

TripAdvisor

Wikipedia

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Frequently Asked Questions

How many Korean Air flights operate from Seattle (SEA) to Seoul (ICN)?

Korean Air operates 1 flight from Seattle (SEA) to Seoul (ICN).

What city does Seoul (ICN) airport serve?

Seoul (ICN) airport serves Jung-gu, KR.

How long is the Korean Air flight from Seattle (SEA) to Seoul (ICN)?

The flight duration is approximately 11h 20m - 12h 20m.

What is the distance from Seattle (SEA) to Seoul (ICN)?

The distance is 5232 miles (8418 km).

What aircraft does Korean Air use on this route?

Korean Air uses Boeing 787-10 on this route.

Which other airlines operate on this route?

2 other airlines operate on this route: Asiana Airlines, Delta Air Lines.

Which terminal does Korean Air use at Seattle (SEA)?

Korean Air flights from Seattle (SEA) depart from Terminal 1. Terminal 1 phone: 800 438-5000.

View all Korean Air flights to Seattle (SEA) →

Popular Korean Air routes from Seattle include multiple destinations.

Route data verified regularly by Triposia Travel Research Team.

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