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Incheon to Seattle flights: average fare and cheapest dates

United States · ICN↔SEA. 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, 16:00

Average fare

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

TripAverageLowest aheadDeparture daysComputed
round trip, 7 nights₩1,424,059₩1,190,500178 daysOct 25, 16:00
round trip, 10 nights₩1,421,683₩1,190,500178 daysOct 25, 16:00
round trip, 14 nights₩1,398,741₩1,190,50060 daysOct 25, 16:00

Cheapest departure days

The 5 cheapest days departing in the next 60 days.

round trip, 7 nights

  1. Dec 14 (Mon) - Dec 21 (Mon)₩1,190,500Below averageChecked Oct 25, 10:11
  2. Dec 15 (Tue) - Dec 22 (Tue)₩1,190,500Below averageChecked Oct 25, 10:11
  3. Dec 21 (Mon) - Dec 28 (Mon)₩1,190,500Below averageChecked Oct 25, 10:11
  4. Dec 22 (Tue) - Dec 29 (Tue)₩1,190,500Below averageChecked Oct 25, 10:11
  5. Dec 23 (Wed) - Dec 30 (Wed)₩1,190,500Below averageChecked Oct 25, 10:11

round trip, 10 nights

  1. Dec 11 (Fri) - Dec 21 (Mon)₩1,190,500Below averageChecked Oct 25, 10:11
  2. Dec 17 (Thu) - Dec 27 (Sun)₩1,190,500Below averageChecked Oct 25, 10:11
  3. Dec 18 (Fri) - Dec 28 (Mon)₩1,190,500Below averageChecked Oct 25, 10:11
  4. Dec 21 (Mon) - Dec 31 (Thu)₩1,190,500Below averageChecked Oct 25, 10:11
  5. Dec 22 (Tue) - Jan 1 (Fri)₩1,190,500Below averageChecked Oct 25, 10:11

round trip, 14 nights

  1. Dec 8 (Tue) - Dec 22 (Tue)₩1,190,500Below averageChecked Oct 25, 11:12
  2. Dec 14 (Mon) - Dec 28 (Mon)₩1,190,500Below averageChecked Oct 25, 11:12
  3. Dec 15 (Tue) - Dec 29 (Tue)₩1,190,500Below averageChecked Oct 25, 11:12
  4. Dec 16 (Wed) - Dec 30 (Wed)₩1,190,500Below averageChecked Oct 25, 11:12
  5. Dec 17 (Thu) - Dec 31 (Thu)₩1,190,500Below averageChecked Oct 25, 11:12

Lowest fare by month

The cheapest collected departure day of each month.

Monthround trip, 7 nightsround trip, 10 nightsround trip, 14 nights
Oct 2026₩1,409,300Oct 30 (Fri) - Nov 6 (Fri)₩1,334,300Oct 30 (Fri) - Nov 9 (Mon)₩1,409,300Oct 30 (Fri) - Nov 13 (Fri)
Nov 2026₩1,319,600Nov 24 (Tue) - Dec 1 (Tue)₩1,319,600Nov 20 (Fri) - Nov 30 (Mon)₩1,319,600Nov 16 (Mon) - Nov 30 (Mon)
Dec 2026₩1,190,500Dec 14 (Mon) - Dec 21 (Mon)₩1,190,500Dec 11 (Fri) - Dec 21 (Mon)₩1,190,500Dec 8 (Tue) - Dec 22 (Tue)
Jan 2027₩1,190,500Jan 18 (Mon) - Jan 25 (Mon)₩1,190,500Jan 18 (Mon) - Jan 28 (Thu)No data
Feb 2027₩1,236,800Feb 1 (Mon) - Feb 8 (Mon)₩1,236,800Feb 1 (Mon) - Feb 11 (Thu)No data
Mar 2027₩1,387,260Mar 29 (Mon) - Apr 5 (Mon)₩1,387,260Mar 25 (Thu) - Apr 4 (Sun)No data
Apr 2027₩1,387,260Apr 1 (Thu) - Apr 8 (Thu)₩1,387,260Apr 1 (Thu) - Apr 11 (Sun)No data
Checked Oct 25, 10:11 to Oct 25, 11:12

round trip, 7 nights, by date

Low
₩1,190,500
Average
₩1,424,059
High
₩2,877,595
over 178 days

round trip, 10 nights, by date

Low
₩1,190,500
Average
₩1,421,683
High
₩2,702,560
over 178 days

round trip, 14 nights, by date

Low
₩1,190,500
Average
₩1,398,741
High
₩2,182,000
over 60 days

Drops on this route

No day is far below average right now.

Questions

Are Incheon to Seattle flights cheap right now?
As of Oct 25, 16:00, 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 Seattle, round trip, 7 nights?
The average fare from Incheon to Seattle, round trip, 7 nights, is ₩1,424,059 (as of Oct 25, 16:00): the mean of the lowest fare on 178 departure days.
What is the cheapest date from Incheon to Seattle, round trip, 7 nights?
The cheapest departure in the next 60 days is Dec 14 (Mon) - Dec 21 (Mon) at ₩1,190,500, below the ₩1,424,059 average (checked Oct 25, 10:11).
What is the average fare from Incheon to Seattle, round trip, 10 nights?
The average fare from Incheon to Seattle, round trip, 10 nights, is ₩1,421,683 (as of Oct 25, 16:00): the mean of the lowest fare on 178 departure days.
What is the cheapest date from Incheon to Seattle, round trip, 10 nights?
The cheapest departure in the next 60 days is Dec 11 (Fri) - Dec 21 (Mon) at ₩1,190,500, below the ₩1,421,683 average (checked Oct 25, 10:11).
What is the average fare from Incheon to Seattle, round trip, 14 nights?
The average fare from Incheon to Seattle, round trip, 14 nights, is ₩1,398,741 (as of Oct 25, 16:00): the mean of the lowest fare on 60 departure days.
What is the cheapest date from Incheon to Seattle, round trip, 14 nights?
The cheapest departure in the next 60 days is Dec 8 (Tue) - Dec 22 (Tue) at ₩1,190,500, below the ₩1,398,741 average (checked Oct 25, 11:12).