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3 Week Expedition Cruises

Explore our 3 week expedition cruises with 7 of the world's leading expedition cruise operators. November and January are the most popular months to join a cruise and we have 22 departures available and 9 unique itineraries to choose from.
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9 Cruises (22 Cruise Departures)
21 Day Spirit of Shackleton with G Adventures
Cruise
 (1)

21 Days (20 Nights) Ushuaia to Ushuaia
Operated By: G Adventures
Departure: 11 January 2027
Visit: Argentina, Antarctica, South Georgia Island, Falkland Islands
From
US$22,999
Per Person
View Trip
21 Day Coral Coast Aventure with South Western Discovery with APT
New ReleaseTour + Cruise

21 Days Broome to Perth
Operated By: APT
Ship: Coral Adventurer
Departure: 05 September 2026
Trip Styles: Coach, Cruise, Scenic
Visit: Australia
Exclusive Savings
Inside
-
Oceanview
$12,895
Balcony
-
Suite
-
From
US$12,895
Per Person
View Trip
21 Day Scandinavian Discovery: From Copenhagen to Lisbon - Cruise & Land Journey with Scenic
New ReleaseTour + Cruise

21 Days Copenhagen to Lisbon
Operated By: Scenic
Ship: Scenic Eclipse II
Departure: 24 August 2026
Trip Styles: Coach, Cruise, Scenic
Visit: Denmark, Sweden, Norway, Holland (+5 more), England, France, Guernsey, Spain, Portugal
Inside
-
Oceanview
-
Balcony
$37,145
Suite
$53,095
From
US$37,145
Per Person
View Trip
21 Day Valparaiso to Puerto Williams with Silversea
Cruise

21 Days (20 Nights) Valparaiso to Santiago
Cruise Line: Silversea
Ship: Silver Cloud
Departure: 15 November 2027
Visit: Chile, Argentina, Antarctica
All-Inclusive Plus Fare
Exclusive Savings
Inside
-
Oceanview
-
Balcony
$31,500
Suite
$43,100
From
US$31,500
Save 3,500
Per Person
View Trip
21 Day Highlights of Antarctica, Argentina and Brazil - Cruise & Land Journey with Scenic
Tour + Cruise

21 Days Rio de Janeiro to Buenos Aires
Operated By: Scenic
Ships: Scenic Eclipse II, Scenic Eclipse I
Departures: Jan 2027 to Jan 2027
Trip Styles: Coach, Cruise, Scenic
Visit: Brazil, Argentina, Antarctica
Inside
-
Oceanview
-
Balcony
$52,145
Suite
$63,695
From
US$52,145
Per Person
View Trip
21 Day South America Revealed with Galápagos Legend North and Central Cruise with Trafalgar
Tour + Cruise

21 Days Rio de Janeiro to Quito
Operated By: Trafalgar
Departures: Oct 2026 to Nov 2026
Visit: Brazil, Argentina, Peru, Ecuador, Galapagos
Today's Deal
Exclusive Savings
From
US$11,220
Save 630
Per Person
View Trip
21 Day South America Revealed with Galápagos Legend East Cruise with Trafalgar
Tour + Cruise

21 Days Rio de Janeiro to Quito
Operated By: Trafalgar
Departures: Aug 2026 to Nov 2026
Visit: Brazil, Argentina, Peru, Ecuador, Galapagos
Sign Up Savings
Today's Deal
Exclusive Savings
From
US$11,220
Save 630
Per Person
View Trip
21 Day Mysteries of the Inca Empire with Peru's Amazon & Galapagos Cruise with Cosmos
Tour + Cruise

21 Days Lima to Quito
Operated By: Cosmos
Departures: Nov 2026 to Oct 2027
Visit: Peru, Ecuador, Galapagos
From
US$8,568
Per Person
View Trip
21 Day Scottish Isles, Iceland & Scoresbysund with Seabourn
Cruise

21 Days (20 Nights) Dublin to Reykjavik
Cruise Line: Seabourn
Ship: Seabourn Venture
Departure: 06 July 2026
Visit: Ireland, England, Scotland, Iceland, Greenland
Yours to Explore
Inside
-
Oceanview
-
Balcony
$23,099
Suite
$23,099
From
US$23,099
Per Person
View Trip
Results: 9 results

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Cruise Themes

Adults Only Cruises Christmas & New Year Cruises Expedition Cruises Family Cruises Island Hopping Cruises Luxury Cruises Northen Lights Cruises Sailing Trips Short Cruises Last Minute Cruise Deals

Trip Lengths

7 Day 10 Day 2 Week 3 Week 4 Week 1 Month

Departure Months

July August September October November January February June

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