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MS Sea Spirit • Poseidon Expeditions
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Poseidon Expeditions • Ship guide
Poseidon Expeditions

Sea Spirit

114 passengers • Small ship • 4,200 gross tons • Built 1991
Upcoming sailings
36 departures currently tracked.
Coverage
46 total sailings and 18 ports tracked.
Next departure
Jul 26, 2026

Sea Spirit cruise ship guide with schedule coverage, itinerary patterns, frequent ports of call, and upcoming sailing activity.

Use this page to compare where the ship is sailing next, how its calendar is distributed, and which itineraries show up most often over the next 18 months.

View sailing calendar Search all sailings for Sea Spirit

Booking verdict

🟢 Good time to book

15 of 32 upcoming sailings are below typical right now.

Below Typical
15 of 32
Cheapest upcoming
$6,734
Sep 7, 2026
Best deal
~32% below median
Exceptional value

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Best deals on Sea Spirit right now

Hand-picked sailings with the strongest price signals, ranked by value rather than date.

Poseidon Expeditions

MS Sea Spirit • Poseidon Expeditions

12-night British Isles One-Way via Tresco & Portrush

May 9, 2027 → May 21, 2027 • Portsmouth → Leith

$3,481 below typical
$7,539 · $628/night · great deal · ↓32% below typical
Poseidon Expeditions

MS Sea Spirit • Poseidon Expeditions

13-night Arctic Repositioning via Leith, Kirkwall & Seydisfjørdur

May 20, 2027 → Jun 2, 2027 • Edinburgh → Longyearbyen

$3,739 below typical
$8,199 · $631/night · great deal · ↓31% below typical
Poseidon Expeditions

MS Sea Spirit • Poseidon Expeditions

13-night Longyearbyen

Aug 14, 2026 → Aug 27, 2026 • Longyearbyen ↔

$3,249 below typical
$9,230 · $710/night · great deal · ↓26% below typical
Poseidon Expeditions

MS Sea Spirit • Poseidon Expeditions

13-night Longyearbyen → Reykjavík

Aug 26, 2026 → Sep 8, 2026 • Longyearbyen → Reykjavík

$3,249 below typical
$9,230 · $710/night · great deal · ↓26% below typical

Sea Spirit Cruise Schedule & Sailing Calendar

View the full Sea Spirit sailing calendar month by month, including departure timing, itinerary spans, port activity, and current price snapshots.

July 2026
Sailing
Port call

Click a bar for sailing details

Sun
Mon
Tue
Wed
Thu
Fri
Sat
28
29
30
1
2
3
Longyearbyen
4
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 11 • From $8,164
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 12 • From $8,112
5
Longyearbyen
6
7
8
9
10
11
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 12 • From $8,112
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 11 • From $8,164
12
13
14
Longyearbyen
15
Longyearbyen
16
17
18
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 12 • From $8,112
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 13 • From $12,885
19
Longyearbyen
20
21
22
23
24
25
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 13 • From $12,885
26
Longyearbyen
27
Longyearbyen
28
29
30
31
1
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 8 • From $5,899
Arctic Loop: Longyearbyen (Sea-Day Heavy) • ☾ 13 • From $12,885
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Upcoming sailings

Browse the full upcoming departure list for Sea Spirit.

Showing 36 upcoming departures.

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Sea Spirit usually sails...

Top itineraries

By departure count
Unknown itinerary
10 departures · 10–13 nights
Typical: $9,879-$12,922 Good deal: <$9,300 Current best: $8,953 ✅
27.8%
Share
Patagonia & Cape Horn Loop via Ushuaia (Sea-Day Heavy)
8 departures · 11–11 nights
Typical: $12,142-$12,847 Good deal: <$11,500 Current best: $11,525 ✅
22.2%
Share
Arctic Loop: Longyearbyen (Sea-Day Heavy)
6 departures · 8–18 nights
Typical: $8,835-$28,807 Good deal: <$8,300 Current best: $5,899 ✅
16.7%
Share
South Atlantic Islands Crossing via Ushuaia & Drake Passage (Best Balance)
4 departures · 20–20 nights
Typical: $17,940-$22,260 Good deal: <$17,000 Current best: $20,361
11.1%
Share
Arctic Loop via Reykjavík (Sea-Day Heavy)
2 departures · 10–10 nights
Typical: $6,734-$10,344 Good deal: <$6,300 Current best: $6,734 ✅
5.6%
Share
Arctic One-Way via Ushuaia & Drake Passage (Best Balance)
2 departures · 11–11 nights
Typical: $12,327-$13,108 Good deal: <$11,700 Current best: $12,158
5.6%
Share

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About Sea Spirit

Sea Spirit is a cruise ship operated by Poseidon Expeditions. It entered service in 1991. Current schedule coverage shows capacity for roughly 114 passengers.

This page brings together future departures, recurring itinerary patterns, frequent ports of call, and the live sailing calendar so it is easier to compare where this ship spends most of its time.

Next sailing
Jul 26, 2026 · 8 nights
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