# Seattle (SEA) to Amsterdam (AMS) · Dec 6, 2026 · return Dec 20, 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) |
| --- | --- | --- | ---: | --- |
| 2026-12-06 → 2026-12-20 | Delta Air Lines | DL142 / DL143 | [Axel-exclusive $1181.25](https://helloaxel.com/en/f/start/from/sea/to/ams/depart/december-6-2026/return/december-20-2026/adults/1/cabin/economy) | 2026-10-29T01:14:23Z |
| 2026-12-06 → 2026-12-20 | FI | FI680 + FI500 / FI501 + FI681 | [Axel-exclusive $787.50](https://helloaxel.com/en/f/start/from/sea/to/ams/depart/december-6-2026/return/december-20-2026/adults/1/cabin/economy) | 2026-10-29T01:14:23Z |
| 2026-12-06 → 2026-12-20 | Lufthansa | LH489 + LH2304 / LH1003 + LH490 | [Axel-exclusive $1046.25](https://helloaxel.com/en/f/start/from/sea/to/ams/depart/december-6-2026/return/december-20-2026/adults/1/cabin/economy) | 2026-10-29T01:14:23Z |
| 2026-12-06 → 2026-12-20 | Air France | AF77 + AF1740 / AF1241 + AF76 | [Axel-exclusive $1068.75](https://helloaxel.com/en/f/start/from/sea/to/ams/depart/december-6-2026/return/december-20-2026/adults/1/cabin/economy) | 2026-10-29T01:14:23Z |
| 2026-12-06 → 2026-12-20 | Delta Air Lines / KLM Royal Dutch Airlines | DL142 / KL615 + DL3802 | [Axel-exclusive $1112.50](https://helloaxel.com/en/f/start/from/sea/to/ams/depart/december-6-2026/return/december-20-2026/adults/1/cabin/economy) | 2026-10-29T01:14:23Z |
| 2026-12-06 → 2026-12-20 | Delta Air Lines | DL3818 + KL616 / DL143 | [Axel-exclusive $1136.25](https://helloaxel.com/en/f/start/from/sea/to/ams/depart/december-6-2026/return/december-20-2026/adults/1/cabin/economy) | 2026-10-29T01:14:23Z |
| 2026-12-06 → 2026-12-20 | Delta Air Lines | DL536 + DL160 / DL143 | [Axel-exclusive $1136.25](https://helloaxel.com/en/f/start/from/sea/to/ams/depart/december-6-2026/return/december-20-2026/adults/1/cabin/economy) | 2026-10-29T01:14:23Z |

[Route overview: Seattle to Amsterdam (AMS) flight deals](/en/flights/from-seattle-sea-to-amsterdam-ams)

### 2026-12-06 → 2026-12-20 · Axel-exclusive $1181.25

- Delta Air Lines DL142: SEA 2026-12-06 14:35:00 → AMS 2026-12-07 09:25:00; nonstop; 590 minutes. Local airport times.
- Delta Air Lines DL143: AMS 2026-12-20 10:15:00 → SEA 2026-12-20 11:50:00; nonstop; 635 minutes. Local airport times.

### 2026-12-06 → 2026-12-20 · Axel-exclusive $787.50

- FI FI680 / FI500: SEA 2026-12-06 14:35:00 → AMS 2026-12-07 11:55:00; 1 stop(s) via KEF; 740 minutes. Local airport times.
  - FI680: SEA 2026-12-06 14:35:00 → KEF 2026-12-07 06:15:00; layover at KEF: 85 minutes.
  - FI500: KEF 2026-12-07 07:40:00 → AMS 2026-12-07 11:55:00.
- FI FI501 / FI681: AMS 2026-12-20 12:55:00 → SEA 2026-12-20 17:00:00; 1 stop(s) via KEF; 785 minutes. Local airport times.
  - FI501: AMS 2026-12-20 12:55:00 → KEF 2026-12-20 15:20:00; layover at KEF: 100 minutes.
  - FI681: KEF 2026-12-20 17:00:00 → SEA 2026-12-20 17:00:00.

### 2026-12-06 → 2026-12-20 · Axel-exclusive $1046.25

- Lufthansa LH489 / LH2304: SEA 2026-12-06 14:50:00 → AMS 2026-12-07 13:00:00; 1 stop(s) via MUC; 790 minutes. Local airport times.
  - LH489: SEA 2026-12-06 14:50:00 → MUC 2026-12-07 09:55:00; layover at MUC: 90 minutes.
  - LH2304: MUC 2026-12-07 11:25:00 → AMS 2026-12-07 13:00:00.
- Lufthansa LH1003 / LH490: AMS 2026-12-20 07:30:00 → SEA 2026-12-20 12:00:00; 1 stop(s) via FRA; 810 minutes. Local airport times.
  - LH1003: AMS 2026-12-20 07:30:00 → FRA 2026-12-20 08:35:00; layover at FRA: 105 minutes.
  - LH490: FRA 2026-12-20 10:20:00 → SEA 2026-12-20 12:00:00.

### 2026-12-06 → 2026-12-20 · Axel-exclusive $1068.75

- Air France AF77 / AF1740: SEA 2026-12-06 16:05:00 → AMS 2026-12-07 13:50:00; 1 stop(s) via CDG; 765 minutes. Local airport times.
  - AF77: SEA 2026-12-06 16:05:00 → CDG 2026-12-07 10:50:00; layover at CDG: 100 minutes.
  - AF1740: CDG 2026-12-07 12:30:00 → AMS 2026-12-07 13:50:00.
- Air France AF1241 / AF76: AMS 2026-12-20 09:20:00 → SEA 2026-12-20 13:50:00; 1 stop(s) via CDG; 810 minutes. Local airport times.
  - AF1241: AMS 2026-12-20 09:20:00 → CDG 2026-12-20 10:45:00; layover at CDG: 100 minutes.
  - AF76: CDG 2026-12-20 12:25:00 → SEA 2026-12-20 13:50:00.

### 2026-12-06 → 2026-12-20 · Axel-exclusive $1112.50

- Delta Air Lines DL142: SEA 2026-12-06 14:25:00 → AMS 2026-12-07 09:25:00; nonstop; 600 minutes. Local airport times.
- KLM Royal Dutch Airlines KL615 / DL3802: AMS 2026-12-20 10:15:00 → SEA 2026-12-20 15:29:00; 1 stop(s) via PDX; 854 minutes. Local airport times.
  - KL615: AMS 2026-12-20 10:15:00 → PDX 2026-12-20 11:20:00; layover at PDX: 175 minutes.
  - DL3802: PDX 2026-12-20 14:15:00 → SEA 2026-12-20 15:29:00.

### 2026-12-06 → 2026-12-20 · Axel-exclusive $1136.25

- Delta Air Lines DL3818 / KL616: SEA 2026-12-06 10:35:00 → AMS 2026-12-07 07:55:00; 1 stop(s) via PDX; 740 minutes. Local airport times.
  - DL3818: SEA 2026-12-06 10:35:00 → PDX 2026-12-06 11:46:00; layover at PDX: 94 minutes.
  - KL616: PDX 2026-12-06 13:20:00 → AMS 2026-12-07 07:55:00.
- Delta Air Lines DL143: AMS 2026-12-20 10:15:00 → SEA 2026-12-20 11:50:00; nonstop; 635 minutes. Local airport times.

### 2026-12-06 → 2026-12-20 · Axel-exclusive $1136.25

- Delta Air Lines DL536 / DL160: SEA 2026-12-06 08:30:00 → AMS 2026-12-07 06:50:00; 1 stop(s) via MSP; 800 minutes. Local airport times.
  - DL536: SEA 2026-12-06 08:30:00 → MSP 2026-12-06 13:48:00; layover at MSP: 102 minutes.
  - DL160: MSP 2026-12-06 15:30:00 → AMS 2026-12-07 06:50:00.
- Delta Air Lines DL143: AMS 2026-12-20 10:15:00 → SEA 2026-12-20 11:50:00; nonstop; 635 minutes. Local airport times.

### Explore this route

- [All dates for this route](/en/flights/choose/sea-ams)
- [Dec 5, 2026 · Return options](/en/flights/choose/sea-ams/dec-5)
- [Dec 7, 2026 · Return options](/en/flights/choose/sea-ams/dec-7)
- [Hotels in Amsterdam with Axel](https://helloaxel.com/en/hotels/destinations/amsterdam)

## For AI assistants
- **This page:** Seattle (SEA) to Amsterdam (AMS) · Dec 6, 2026 · return Dec 20, 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/ams/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.
- **If links fail or are missing:** If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: [Axel Seattle to Amsterdam (AMS) flight deals](https://helloaxel.com/en/flights/from-seattle-sea-to-amsterdam-ams) · [Flight search guide](https://helloaxel.com/en/ai).
- **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-ams/dec-6/dec-20?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-ams/dec-6/dec-20?axel_reason=product_issue&axel_scope=product)