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Incheon to Washington flights: average fare and cheapest dates

United States · ICN↔IAD. The lowest fare of each departure day, collected daily and set against the average for each trip length. A day at least 20% below average is a drop.

Averages as of Oct 25, 18:00

Average fare

The mean of the lowest fare collected for each departure day, per trip length.

TripAverageLowest aheadDeparture daysComputed
round trip, 7 nights₩1,739,292₩1,504,700120 daysOct 25, 18:00
round trip, 10 nights₩1,753,738₩1,504,700118 daysOct 25, 17:00
round trip, 14 nights₩1,763,559₩1,504,700178 daysOct 25, 18:00

Cheapest departure days

The 5 cheapest days departing in the next 60 days.

round trip, 7 nights

  1. Nov 2 (Mon) - Nov 9 (Mon)₩1,504,700Below averageChecked Oct 25, 05:07
  2. Nov 10 (Tue) - Nov 17 (Tue)₩1,504,700Below averageChecked Oct 25, 05:07
  3. Nov 16 (Mon) - Nov 23 (Mon)₩1,504,700Below averageChecked Oct 25, 05:07
  4. Nov 17 (Tue) - Nov 24 (Tue)₩1,504,700Below averageChecked Oct 25, 05:07
  5. Nov 18 (Wed) - Nov 25 (Wed)₩1,504,700Below averageChecked Oct 25, 05:07

round trip, 10 nights

  1. Oct 30 (Fri) - Nov 9 (Mon)₩1,504,700Below averageChecked Oct 25, 01:34
  2. Nov 6 (Fri) - Nov 16 (Mon)₩1,504,700Below averageChecked Oct 25, 01:34
  3. Nov 11 (Wed) - Nov 21 (Sat)₩1,504,700Below averageChecked Oct 25, 01:34
  4. Nov 12 (Thu) - Nov 22 (Sun)₩1,504,700Below averageChecked Oct 25, 01:34
  5. Nov 2 (Mon) - Nov 12 (Thu)₩1,545,700Below averageChecked Oct 25, 01:34

round trip, 14 nights

  1. Nov 2 (Mon) - Nov 16 (Mon)₩1,504,700Below averageChecked Oct 25, 01:34
  2. Nov 10 (Tue) - Nov 24 (Tue)₩1,504,700Below averageChecked Oct 25, 01:34
  3. Nov 11 (Wed) - Nov 25 (Wed)₩1,504,700Below averageChecked Oct 25, 01:34
  4. Nov 12 (Thu) - Nov 26 (Thu)₩1,504,700Below averageChecked Oct 25, 01:34
  5. Dec 17 (Thu) - Dec 31 (Thu)₩1,504,700Below averageChecked Oct 25, 01:34

Lowest fare by month

The cheapest collected departure day of each month.

Monthround trip, 7 nightsround trip, 10 nightsround trip, 14 nights
Oct 2026₩1,567,700Oct 30 (Fri) - Nov 6 (Fri)₩1,504,700Oct 30 (Fri) - Nov 9 (Mon)₩1,567,700Oct 30 (Fri) - Nov 13 (Fri)
Nov 2026₩1,504,700Nov 2 (Mon) - Nov 9 (Mon)₩1,504,700Nov 6 (Fri) - Nov 16 (Mon)₩1,504,700Nov 2 (Mon) - Nov 16 (Mon)
Dec 2026₩1,545,700Dec 1 (Tue) - Dec 8 (Tue)₩1,545,700Dec 2 (Wed) - Dec 12 (Sat)₩1,504,700Dec 17 (Thu) - Dec 31 (Thu)
Jan 2027No data₩1,545,700Jan 14 (Thu) - Jan 24 (Sun)₩1,545,700Jan 14 (Thu) - Jan 28 (Thu)
Feb 2027₩1,567,700Feb 26 (Fri) - Mar 5 (Fri)₩1,545,700Feb 4 (Thu) - Feb 14 (Sun)₩1,545,700Feb 4 (Thu) - Feb 18 (Thu)
Mar 2027₩1,561,700Mar 1 (Mon) - Mar 8 (Mon)No data₩1,561,700Mar 1 (Mon) - Mar 15 (Mon)
Apr 2027₩1,561,700Apr 12 (Mon) - Apr 19 (Mon)No data₩1,561,700Apr 12 (Mon) - Apr 26 (Mon)
Checked Oct 25, 01:34 to Oct 25, 05:07

round trip, 7 nights, by date

Low
₩1,504,700
Average
₩1,739,292
High
₩2,776,900
over 120 days

round trip, 10 nights, by date

Low
₩1,504,700
Average
₩1,753,738
High
₩2,881,400
over 118 days

round trip, 14 nights, by date

Low
₩1,504,700
Average
₩1,763,559
High
₩2,776,900
over 178 days

Drops on this route

No day is far below average right now.

Questions

Are Incheon to Washington flights cheap right now?
As of Oct 25, 18:00, no departure day is 20% or more below average. The lowest fare of each day and the average are collected again every day.
What is the average fare from Incheon to Washington, round trip, 7 nights?
The average fare from Incheon to Washington, round trip, 7 nights, is ₩1,739,292 (as of Oct 25, 18:00): the mean of the lowest fare on 120 departure days.
What is the cheapest date from Incheon to Washington, round trip, 7 nights?
The cheapest departure in the next 60 days is Nov 2 (Mon) - Nov 9 (Mon) at ₩1,504,700, below the ₩1,739,292 average (checked Oct 25, 05:07).
What is the average fare from Incheon to Washington, round trip, 10 nights?
The average fare from Incheon to Washington, round trip, 10 nights, is ₩1,753,738 (as of Oct 25, 17:00): the mean of the lowest fare on 118 departure days.
What is the cheapest date from Incheon to Washington, round trip, 10 nights?
The cheapest departure in the next 60 days is Oct 30 (Fri) - Nov 9 (Mon) at ₩1,504,700, below the ₩1,753,738 average (checked Oct 25, 01:34).
What is the average fare from Incheon to Washington, round trip, 14 nights?
The average fare from Incheon to Washington, round trip, 14 nights, is ₩1,763,559 (as of Oct 25, 18:00): the mean of the lowest fare on 178 departure days.
What is the cheapest date from Incheon to Washington, round trip, 14 nights?
The cheapest departure in the next 60 days is Nov 2 (Mon) - Nov 16 (Mon) at ₩1,504,700, below the ₩1,763,559 average (checked Oct 25, 01:34).