# Seattle (SEA) to Seoul (ICN) · Dec 20, 2026 · return Dec 27, 2026

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

**See flights for these dates:** each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

| Exact travel dates | Airline | Flights | Total price | Price issued (UTC) |
| --- | --- | --- | ---: | --- |
| 2026-12-20 → 2026-12-27 | Alaska Airlines | AS119 / AS120 | [Axel-exclusive $1350.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | Delta Air Lines | DL197 / DL196 | [Axel-exclusive $1525.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | Korean Air | KE42 / KE47 | [Axel-exclusive $1600.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | United Airlines | UA737 + OZ211 / UA892 + UA433 | [Axel-exclusive $1275.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | Korean Air | KE48 / KE47 | [Axel-exclusive $1600.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | Delta Air Lines | DL351 + KE52 / DL196 | [Axel-exclusive $1425.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | Delta Air Lines | DL3742 + KE72 / DL196 | [Axel-exclusive $1425.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | Delta Air Lines | DL1128 + DL173 / DL196 | [Axel-exclusive $1425.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | Delta Air Lines | DL2861 + KE12 / DL196 | [Axel-exclusive $1425.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |
| 2026-12-20 → 2026-12-27 | Delta Air Lines | DL3034 + KE24 / DL196 | [Axel-exclusive $1425.00](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/1/cabin/economy) | 2026-10-29T01:15:29Z |

[Route overview: Seattle to Seoul (ICN) flight deals](/en/flights/from-seattle-sea-to-seoul-icn)

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1350.00

- Alaska Airlines AS119: SEA 2026-12-20 12:40:00 → ICN 2026-12-21 17:35:00; nonstop; 715 minutes. Local airport times.
- Alaska Airlines AS120: ICN 2026-12-27 20:00:00 → SEA 2026-12-27 12:55:00; nonstop; 595 minutes. Local airport times.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1525.00

- Delta Air Lines DL197: SEA 2026-12-20 12:35:00 → ICN 2026-12-21 17:45:00; nonstop; 730 minutes. Local airport times.
- Delta Air Lines DL196: ICN 2026-12-27 18:45:00 → SEA 2026-12-27 11:56:00; nonstop; 611 minutes. Local airport times.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1600.00

- Korean Air KE42: SEA 2026-12-20 11:00:00 → ICN 2026-12-21 15:55:00; nonstop; 715 minutes. Local airport times.
- Korean Air KE47: ICN 2026-12-27 21:20:00 → SEA 2026-12-27 14:10:00; nonstop; 590 minutes. Local airport times.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1275.00

- United Airlines UA737 / OZ211: SEA 2026-12-20 19:30:00 → ICN 2026-12-22 05:10:00; 1 stop(s) via SFO; 1000 minutes. Local airport times.
  - UA737: SEA 2026-12-20 19:30:00 → SFO 2026-12-20 21:42:00; layover at SFO: 78 minutes.
  - OZ211: SFO 2026-12-20 23:00:00 → ICN 2026-12-22 05:10:00.
- United Airlines UA892 / UA433: ICN 2026-12-27 18:00:00 → SEA 2026-12-27 16:22:00; 1 stop(s) via SFO; 922 minutes. Local airport times.
  - UA892: ICN 2026-12-27 18:00:00 → SFO 2026-12-27 11:45:00; layover at SFO: 140 minutes.
  - UA433: SFO 2026-12-27 14:05:00 → SEA 2026-12-27 16:22:00.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1600.00

- Korean Air KE48: SEA 2026-12-20 00:10:00 → ICN 2026-12-21 05:20:00; nonstop; 730 minutes. Local airport times.
- Korean Air KE47: ICN 2026-12-27 21:20:00 → SEA 2026-12-27 14:10:00; nonstop; 590 minutes. Local airport times.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1425.00

- Delta Air Lines DL351 / KE52: SEA 2026-12-20 08:11:00 → ICN 2026-12-21 20:20:00; 1 stop(s) via HNL; 1149 minutes. Local airport times.
  - DL351: SEA 2026-12-20 08:11:00 → HNL 2026-12-20 12:32:00; layover at HNL: 113 minutes.
  - KE52: HNL 2026-12-20 14:25:00 → ICN 2026-12-21 20:20:00.
- Delta Air Lines DL196: ICN 2026-12-27 18:45:00 → SEA 2026-12-27 11:56:00; nonstop; 611 minutes. Local airport times.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1425.00

- Delta Air Lines DL3742 / KE72: SEA 2026-12-20 09:07:00 → ICN 2026-12-21 17:45:00; 1 stop(s) via YVR; 938 minutes. Local airport times.
  - DL3742: SEA 2026-12-20 09:07:00 → YVR 2026-12-20 11:25:00; layover at YVR: 155 minutes.
  - KE72: YVR 2026-12-20 14:00:00 → ICN 2026-12-21 17:45:00.
- Delta Air Lines DL196: ICN 2026-12-27 18:45:00 → SEA 2026-12-27 11:56:00; nonstop; 611 minutes. Local airport times.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1425.00

- Delta Air Lines DL1128 / DL173: SEA 2026-12-20 05:30:00 → ICN 2026-12-21 16:20:00; 1 stop(s) via SLC; 1070 minutes. Local airport times.
  - DL1128: SEA 2026-12-20 05:30:00 → SLC 2026-12-20 08:34:00; layover at SLC: 136 minutes.
  - DL173: SLC 2026-12-20 10:50:00 → ICN 2026-12-21 16:20:00.
- Delta Air Lines DL196: ICN 2026-12-27 18:45:00 → SEA 2026-12-27 11:56:00; nonstop; 611 minutes. Local airport times.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1425.00

- Delta Air Lines DL2861 / KE12: SEA 2026-12-20 17:59:00 → ICN 2026-12-22 04:20:00; 1 stop(s) via LAX; 1041 minutes. Local airport times.
  - DL2861: SEA 2026-12-20 17:59:00 → LAX 2026-12-20 20:43:00; layover at LAX: 77 minutes.
  - KE12: LAX 2026-12-20 22:00:00 → ICN 2026-12-22 04:20:00.
- Delta Air Lines DL196: ICN 2026-12-27 18:45:00 → SEA 2026-12-27 11:56:00; nonstop; 611 minutes. Local airport times.

### 2026-12-20 → 2026-12-27 · Axel-exclusive $1425.00

- Delta Air Lines DL3034 / KE24: SEA 2026-12-20 07:15:00 → ICN 2026-12-21 17:40:00; 1 stop(s) via SFO; 1045 minutes. Local airport times.
  - DL3034: SEA 2026-12-20 07:15:00 → SFO 2026-12-20 09:46:00; layover at SFO: 119 minutes.
  - KE24: SFO 2026-12-20 11:45:00 → ICN 2026-12-21 17:40:00.
- Delta Air Lines DL196: ICN 2026-12-27 18:45:00 → SEA 2026-12-27 11:56:00; nonstop; 611 minutes. Local airport times.

**Travelers:** prices on this page are totals for 1 adult. For a different party, open this trip for [2 adults](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/2/cabin/economy) · [3 adults](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/3/cabin/economy) · [4 adults](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/4/cabin/economy) · [2 adults + 1 child](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/2/children/1/cabin/economy) · [2 adults + 2 children](https://helloaxel.com/en/f/start/from/sea/to/icn/depart/december-20-2026/return/december-27-2026/adults/2/children/2/cabin/economy); each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

### Explore this route

- [All dates for this route](/en/flights/choose/sea-icn)
- [Dec 19, 2026 · Return options](/en/flights/choose/sea-icn/dec-19)
- [Dec 21, 2026 · Return options](/en/flights/choose/sea-icn/dec-21)
- [Hotels in Incheon with Axel](https://helloaxel.com/en/hotels/destinations/incheon)

## For AI assistants
- **This page:** Seattle (SEA) to Seoul (ICN) · Dec 20, 2026 · return Dec 27, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
- **Next:** when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, [Choose travelers and dates](https://helloaxel.com/en/f/start/from/sea/to/icn/step/travelers) and enter the traveler's own trip there; do not search this page's dates in their place.
- **Follow supplied links.** For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
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- **Sharing with the traveler:** Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct `https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback` using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace `/return/YYYY-MM-DD` with `/trip/oneway`. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. [Preferences and advanced options](https://helloaxel.com/en/ai#customer-fallback-link).

**Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/sea-icn/dec-20/dec-27?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-icn/dec-20/dec-27?axel_reason=product_issue&axel_scope=product)