MS Sea Spirit • Poseidon Expeditions
12-night British Isles One-Way via Tresco & Portrush
May 9, 2027 → May 21, 2027 • Portsmouth → Leith
From $7,674
$640/night
Great deal
↓30% below typical
MS Sea Spirit
•
Poseidon Expeditions
Sea Spirit
114 passengers
•
Small ship
•
4,200 gross tons
•
Built 1991
Upcoming sailings
37 departures currently tracked.
Coverage
46 total sailings and 18 ports tracked.
Next departure
Jun 7, 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.
Booking verdict
🟢 Good time to book
18 of 36 upcoming sailings are below typical right now.
Below Typical
18 of 36
Cheapest upcoming
$5,924
Jul 26, 2026
Best deal
~30% below median
Strong value
Best deals on Sea Spirit right now
Hand-picked sailings with the strongest price signals, ranked by value rather than date.
MS Sea Spirit • Poseidon Expeditions
13-night Arctic Repositioning via Leith, Kirkwall & Seydisfjørdur
May 20, 2027 → Jun 2, 2027 • Edinburgh → Longyearbyen
From $8,346
$642/night
Great deal
↓30% below typical
MS Sea Spirit • Poseidon Expeditions
12-night Arctic Loop via Longyearbyen
Jul 3, 2026 → Jul 15, 2026 • Longyearbyen ↔
From $8,295
$691/night
Great deal
↓31% below typical
MS Sea Spirit • Poseidon Expeditions
13-night Longyearbyen
Aug 14, 2026 → Aug 27, 2026 • Longyearbyen ↔
From $9,396
$723/night
Great deal
↓25% 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.
June 2026
Sailing
Port call
Click a bar for sailing details
Sun
Mon
Tue
Wed
Thu
Fri
Sat
31
1
2
3
4
5
6
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All sailings
Upcoming sailings
Browse the full upcoming departure list for Sea Spirit.
Showing 37 upcoming departures.
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Sea Spirit usually sails...
Top itineraries
By departure count
11 departures
· 8–18 nights
Typical: $7,705-$30,986
Good deal: <$7,300
Current best: $5,924 ✅
29.7%
Share
Unknown itinerary
10 departures
· 10–13 nights
Typical: $9,879-$12,937
Good deal: <$9,300
Current best: $9,113 ✅
27.0%
Share
6 departures
· 11–11 nights
Typical: $12,211-$12,873
Good deal: <$11,600
Current best: $11,624 ✅
16.2%
Share
3 departures
· 20–20 nights
Typical: $12,995-$20,516
Good deal: <$12,300
Current best: $20,726
8.1%
Share
2 departures
· 10–10 nights
Typical: $6,497-$10,258
Good deal: <$6,100
Current best: $6,855 ✅
5.4%
Share
1 departures
· 11–11 nights
Typical: $12,376-$13,043
Good deal: <$11,700
Current best: $12,753
2.7%
Share
Compare similar ships
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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
Jun 7, 2026
· 10 nights