Side-by-side cruise ship comparison · Updated February 2026
across 5 categories
Size
Based on gross tonnage and length
Capacity
Based on passengers and crew
Modernity
Based on year built
Service
Based on passenger-to-crew ratio (lower is better)
Spaciousness
Based on gross tonnage per passenger (higher is better)
American Constellation
American Harmony
Gross Tonnage
American Constellation
3,000 GT
American Harmony
3,527 GT
Length
American Constellation
64 m
American Harmony
100 m
Beam
American Constellation
15 m
American Harmony
14 m
Passengers
American Constellation
175
American Harmony
190
Crew
American Constellation
58
American Harmony
72
Decks
American Constellation
—
American Harmony
—
Year Built
American Constellation
2,017
American Harmony
2,019
Space Ratio
American Constellation
17.1 GT/pax
American Harmony
18.6 GT/pax
Passenger:Crew Ratio
American Constellation
3.02 :1
American Harmony
2.64 :1
| Specification | American Constellation | American Harmony |
|---|---|---|
| Overview | ||
| Cruise Line | American Cruise Lines | American Cruise Lines |
| Class | Coastal | Modern Riverboat |
| Status | active | active |
| Year Built | 2,017 | 2,019Winner |
| Dimensions | ||
| Gross Tonnage | 3,000 GT | 3,527 GTWinner |
| Length | 64 m | 100 mWinner |
| Beam | 15 mWinner | |
| Capacity | ||
| Passengers | 175 | 190Winner |
| Crew | 58 | 72Winner |
| Key Ratios | ||
| Space Ratio | 17.1 GT/pax | 18.6 GT/paxWinner |
| Passenger:Crew Ratio | 3.02:1 | 2.64:1Winner |
| Build | ||
| Builder | Chesapeake Shipbuilding | Chesapeake Shipbuilding |
| Flag | United States | United States |
| IMO Number | 9894456 | 9837524 |
American Constellation
Good value for money
Built in 2017 with modern facilities — great for a first cruise
Good range of onboard options
Comfortable atmosphere for two
American Harmony
Good value for money
Built in 2019 with modern facilities — great for a first cruise
Good range of onboard options
Comfortable atmosphere for two
Free cancellation on most rooms
Bundle & save on your cruise trip
Medical, trip cancellation & luggage cover
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14 m |
| Draft | — | — |
| Decks | — | — |
