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Seattle → Seoul

Dec 21, 2026 · return Dec 28, 2026

SEA → ICN1 adulteconomyRound trip

10 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Mon, Dec 28

Alaska Airlines
12:40 pmSEA
11h 55m
Nonstop
5:35 pm+1ICN
Alaska Airlines
8:00 pmICN
9h 55m
Nonstop
12:55 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
12:35 pmSEA
12h 10m
Nonstop
5:45 pm+1ICN
Delta Air Lines
6:45 pmICN
10h 6m
Nonstop
11:51 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Korean Air
12:10 amSEA
12h 10m
Nonstop
5:20 am+1ICN
Korean Air
9:20 pmICN
9h 50m
Nonstop
2:10 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Korean Air
11:00 amSEA
11h 55m
Nonstop
3:55 pm+1ICN
Korean Air
9:20 pmICN
9h 50m
Nonstop
2:10 pmSEA

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Dec 28

United Airlines
7:30 pmSEA
16h 40m
SFO · 1h 18m
5:10 am+2ICN
United Airlines
6:00 pmICN
15h 22m
SFO · 2h 20m
4:22 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
8:11 amSEA
19h 9m
HNL · 1h 53m
8:20 pm+1ICN
Delta Air Lines
6:45 pmICN
10h 6m
Nonstop
11:51 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
5:30 amSEA
17h 50m
SLC · 2h 16m
4:20 pm+1ICN
Delta Air Lines
6:45 pmICN
10h 6m
Nonstop
11:51 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
9:07 amSEA
15h 38m
YVR · 2h 35m
5:45 pm+1ICN
Delta Air Lines
6:45 pmICN
10h 6m
Nonstop
11:51 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
5:59 pmSEA
17h 21m
LAX · 1h 17m
4:20 am+2ICN
Delta Air Lines
6:45 pmICN
10h 6m
Nonstop
11:51 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
7:15 amSEA
17h 25m
SFO · 1h 59m
5:40 pm+1ICN
Delta Air Lines
6:45 pmICN
10h 6m
Nonstop
11:51 amSEA

Round-trip total · 1 adult · Taxes included

Make this trip yours

SEA ⇄ ICN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2026-12-28Alaska AirlinesAS119 / AS120$1350.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28Delta Air LinesDL197 / DL196$1525.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28Korean AirKE48 / KE47$1600.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28United AirlinesUA737 + OZ211 / UA892 + UA433$1275.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28Korean AirKE42 / KE47$1600.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28Delta Air LinesDL351 + KE52 / DL196$1425.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28Delta Air LinesDL1128 + DL173 / DL196$1425.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28Delta Air LinesDL3742 + KE72 / DL196$1425.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28Delta Air LinesDL2861 + KE12 / DL196$1425.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-28Delta Air LinesDL3034 + KE24 / DL196$1425.002026-10-29T01:15:29Z

2026-12-21 → 2026-12-28 · $1350.00

  • Alaska Airlines AS119: SEA 2026-12-21 12:40:00 → ICN 2026-12-22 17:35:00; nonstop; 715 minutes. Local airport times.
  • Alaska Airlines AS120: ICN 2026-12-28 20:00:00 → SEA 2026-12-28 12:55:00; nonstop; 595 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $1525.00

  • Delta Air Lines DL197: SEA 2026-12-21 12:35:00 → ICN 2026-12-22 17:45:00; nonstop; 730 minutes. Local airport times.
  • Delta Air Lines DL196: ICN 2026-12-28 18:45:00 → SEA 2026-12-28 11:51:00; nonstop; 606 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $1600.00

  • Korean Air KE48: SEA 2026-12-21 00:10:00 → ICN 2026-12-22 05:20:00; nonstop; 730 minutes. Local airport times.
  • Korean Air KE47: ICN 2026-12-28 21:20:00 → SEA 2026-12-28 14:10:00; nonstop; 590 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $1275.00

  • United Airlines UA737 / OZ211: SEA 2026-12-21 19:30:00 → ICN 2026-12-23 05:10:00; 1 stop(s) via SFO; 1000 minutes. Local airport times.
    • UA737: SEA 2026-12-21 19:30:00 → SFO 2026-12-21 21:42:00; layover at SFO: 78 minutes.
    • OZ211: SFO 2026-12-21 23:00:00 → ICN 2026-12-23 05:10:00.
  • United Airlines UA892 / UA433: ICN 2026-12-28 18:00:00 → SEA 2026-12-28 16:22:00; 1 stop(s) via SFO; 922 minutes. Local airport times.
    • UA892: ICN 2026-12-28 18:00:00 → SFO 2026-12-28 11:45:00; layover at SFO: 140 minutes.
    • UA433: SFO 2026-12-28 14:05:00 → SEA 2026-12-28 16:22:00.

2026-12-21 → 2026-12-28 · $1600.00

  • Korean Air KE42: SEA 2026-12-21 11:00:00 → ICN 2026-12-22 15:55:00; nonstop; 715 minutes. Local airport times.
  • Korean Air KE47: ICN 2026-12-28 21:20:00 → SEA 2026-12-28 14:10:00; nonstop; 590 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $1425.00

  • Delta Air Lines DL351 / KE52: SEA 2026-12-21 08:11:00 → ICN 2026-12-22 20:20:00; 1 stop(s) via HNL; 1149 minutes. Local airport times.
    • DL351: SEA 2026-12-21 08:11:00 → HNL 2026-12-21 12:32:00; layover at HNL: 113 minutes.
    • KE52: HNL 2026-12-21 14:25:00 → ICN 2026-12-22 20:20:00.
  • Delta Air Lines DL196: ICN 2026-12-28 18:45:00 → SEA 2026-12-28 11:51:00; nonstop; 606 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $1425.00

  • Delta Air Lines DL1128 / DL173: SEA 2026-12-21 05:30:00 → ICN 2026-12-22 16:20:00; 1 stop(s) via SLC; 1070 minutes. Local airport times.
    • DL1128: SEA 2026-12-21 05:30:00 → SLC 2026-12-21 08:34:00; layover at SLC: 136 minutes.
    • DL173: SLC 2026-12-21 10:50:00 → ICN 2026-12-22 16:20:00.
  • Delta Air Lines DL196: ICN 2026-12-28 18:45:00 → SEA 2026-12-28 11:51:00; nonstop; 606 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $1425.00

  • Delta Air Lines DL3742 / KE72: SEA 2026-12-21 09:07:00 → ICN 2026-12-22 17:45:00; 1 stop(s) via YVR; 938 minutes. Local airport times.
    • DL3742: SEA 2026-12-21 09:07:00 → YVR 2026-12-21 11:25:00; layover at YVR: 155 minutes.
    • KE72: YVR 2026-12-21 14:00:00 → ICN 2026-12-22 17:45:00.
  • Delta Air Lines DL196: ICN 2026-12-28 18:45:00 → SEA 2026-12-28 11:51:00; nonstop; 606 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $1425.00

  • Delta Air Lines DL2861 / KE12: SEA 2026-12-21 17:59:00 → ICN 2026-12-23 04:20:00; 1 stop(s) via LAX; 1041 minutes. Local airport times.
    • DL2861: SEA 2026-12-21 17:59:00 → LAX 2026-12-21 20:43:00; layover at LAX: 77 minutes.
    • KE12: LAX 2026-12-21 22:00:00 → ICN 2026-12-23 04:20:00.
  • Delta Air Lines DL196: ICN 2026-12-28 18:45:00 → SEA 2026-12-28 11:51:00; nonstop; 606 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $1425.00

  • Delta Air Lines DL3034 / KE24: SEA 2026-12-21 07:15:00 → ICN 2026-12-22 17:40:00; 1 stop(s) via SFO; 1045 minutes. Local airport times.
    • DL3034: SEA 2026-12-21 07:15:00 → SFO 2026-12-21 09:46:00; layover at SFO: 119 minutes.
    • KE24: SFO 2026-12-21 11:45:00 → ICN 2026-12-22 17:40:00.
  • Delta Air Lines DL196: ICN 2026-12-28 18:45:00 → SEA 2026-12-28 11:51:00; nonstop; 606 minutes. Local airport times.

More dates for this route