Seoul (ICN) → Washington (IAD)
About Seoul to Washington Flights
Discover the best flights from Seoul to Washington, covering 11,174 km in approximately 14h 28m. Seoul (ICN) to Washington (IAD) is one of the major long-haul routes connecting South Korea and United States. 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 Seoul to Washington.
12-Month Price History
Flight prices from Seoul to Washington vary significantly throughout the year. February typically offers the best deals with average prices around $2017, while July sees the highest prices, averaging $3390. 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
102 days
For best prices
Booking Tips
For the best prices on Seoul to Washington flights, we recommend booking 149 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 | $3400 | $12240 | $18160 |
British Airways BA | $3610 | $12300 | $21570 |
United Airlines UA | $3610 | $12480 | $22390 |
Air France AF | $3910 | $14050 | $20350 |
Asiana Airlines OZ | $3970 | $13140 | $22630 |
Korean Air KE | $4170 | $11550 | $23310 |
Delta Air Lines DL | $4340 | $15130 | $22520 |
American Airlines
AA
Economy
$3400
Business
$12240
First
$18160
British Airways
BA
Economy
$3610
Business
$12300
First
$21570
United Airlines
UA
Economy
$3610
Business
$12480
First
$22390
Air France
AF
Economy
$3910
Business
$14050
First
$20350
Asiana Airlines
OZ
Economy
$3970
Business
$13140
First
$22630
Korean Air
KE
Economy
$4170
Business
$11550
First
$23310
Delta Air Lines
DL
Economy
$4340
Business
$15130
First
$22520
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Seoul → Washington
Gimpo International (GMP) to Washington Dulles International (IAD)
Distance: 11,153 km
Average price: $2305
Seoul → Washington
Incheon International (ICN) to Ronald Reagan Washington National (DCA)
Distance: 11,196 km
Average price: $2313
Don't Forget Travel Insurance!
Found your flight? Protect your trip with SafetyWing's comprehensive travel insurance. Perfect for trips to Washington, United States.
- 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 Seoul to Washington?
The flight time from Seoul (ICN) to Washington (IAD) 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 Seoul and Washington?
The aerial distance between Seoul and Washington is 11,174 kilometers (6,943 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Seoul to Washington?
Several airlines operate flights between Seoul and Washington, 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 Seoul to Washington?
Based on historical data, February typically offers the lowest airfares for flights from Seoul to Washington. 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 Washington?
For the best prices on Seoul to Washington 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 Seoul to Washington?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of South Korea traveling to United States should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Seoul and Washington?
Seoul operates on Asia/Seoul time zone, while Washington is in the America/New_York time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.