Washington (IAD) → Seoul (ICN)
About Washington to Seoul Flights
Discover the best flights from Washington to Seoul, covering 11,174 km in approximately 14h 28m. Washington (IAD) to Seoul (ICN) is one of the major long-haul routes connecting United States and South Korea. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Washington to Seoul.
12-Month Price History
Flight prices from Washington to Seoul vary significantly throughout the year. February typically offers the best deals with average prices around $2002, while July sees the highest prices, averaging $3385. Savvy travelers can save up to 41% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
66 days
For best prices
Booking Tips
For the best prices on Washington to Seoul flights, we recommend booking 119 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
American Airlines AA | $3430 | $13310 | $22320 |
Delta Air Lines DL | $3770 | $14130 | $24380 |
Air France AF | $3860 | $11970 | $20350 |
Korean Air KE | $4110 | $12430 | $22170 |
United Airlines UA | $4140 | $12460 | $22430 |
Asiana Airlines OZ | $4260 | $11410 | $22800 |
British Airways BA | $4320 | $12340 | $20850 |
American Airlines
AA
Economy
$3430
Business
$13310
First
$22320
Delta Air Lines
DL
Economy
$3770
Business
$14130
First
$24380
Air France
AF
Economy
$3860
Business
$11970
First
$20350
Korean Air
KE
Economy
$4110
Business
$12430
First
$22170
United Airlines
UA
Economy
$4140
Business
$12460
First
$22430
Asiana Airlines
OZ
Economy
$4260
Business
$11410
First
$22800
British Airways
BA
Economy
$4320
Business
$12340
First
$20850
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Washington → Seoul
Ronald Reagan Washington National (DCA) to Incheon International (ICN)
Distance: 11,196 km
Average price: $2313
Washington → Seoul
Washington Dulles International (IAD) to Gimpo International (GMP)
Distance: 11,153 km
Average price: $2305
Don't Forget Travel Insurance!
Found your flight? Protect your trip with SafetyWing's comprehensive travel insurance. Perfect for trips to Seoul, South Korea.
- Medical coverage up to $250,000
- Trip interruption & delays covered
- Lost luggage protection included
From just $45/month • Works in 180+ countries • COVID-19 coverage included
Trusted by 100,000+ travelers
Frequently Asked Questions
How long is the flight from Washington to Seoul?
The flight time from Washington (IAD) to Seoul (ICN) is approximately 14 hours and 28 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Washington and Seoul?
The aerial distance between Washington and Seoul is 11,174 kilometers (6,943 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Washington to Seoul?
Several airlines operate flights between Washington and Seoul, including United Airlines, Korean Air, Asiana Airlines and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from Washington to Seoul?
Based on historical data, February typically offers the lowest airfares for flights from Washington to Seoul. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Seoul?
For the best prices on Washington to Seoul flights, we recommend booking 177 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Washington to Seoul?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to South Korea should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Washington and Seoul?
Washington operates on America/New_York time zone, while Seoul is in the Asia/Seoul time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.