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3 Week Trips to South East Asia

Looking to explore South East Asia for 3 weeks? Then choose from our range of river cruises, adventures and guided tours with 8 of the best tour operators to South East Asia. November, March and April are the most popular months to travel to South East Asia and we have 576 departures available.
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14 trips (576 Departures)
14 trips (576 Departures)
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$2,100pp
$16,890pp
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21 Day Best of Vietnam and Cambodia with APT
Tour + River Cruise
 (6)

21 Days Hanoi to Siem Reap
Cruise Line: APT
Ships: Mekong Serenity
Departures: Sep 2026 to Apr 2028
Rivers: Mekong
Visits: Vietnam, Cambodia
Exclusive Savings
Balcony
$10,993
Suite
$12,948
From (Per Person)
A$10,993
Save 3,806
Per Person
View Trip
21 Day Best of Vietnam and Cambodia with APT
Tour + River Cruise
 (3)

21 Days Ho Chi Minh City to Ho Chi Minh City
Cruise Line: APT
Ships: Mekong Serenity
Departures: Sep 2026 to Apr 2028
Rivers: Mekong
Visits: Vietnam, Cambodia
Exclusive Savings
Balcony
$11,679
Suite
$13,634
From (Per Person)
A$11,679
Save 3,824
Per Person
View Trip
21 Day Vietnam & Cambodia Intro with Intro Travel
Tour
 (3)

21 Days Hanoi to Siem Reap
Operator: Intro Travel
Departures: Jul 2026 to Nov 2027
Trip Styles: Small Group, 18-30's, Scenic, Ha Long Bay
Visits: Vietnam, Cambodia
Exclusive Savings
From (Per Person)
A$3,685
Save 126
Per Person
View Trip
21 Day Grand Tour of Vietnam & Cambodia with Emerald Cruises
Tour + River Cruise
 (6)

21 Days Hanoi to Siem Reap
Cruise Line: Emerald Cruises
Ship: Emerald Harmony
Departures: Feb 2027 to May 2028
Rivers: Mekong
Visits: Vietnam, Cambodia
Exclusive Savings
River View
$9,032
Balcony
$9,924
Suite
$12,100
From (Per Person)
A$9,032
Save 1,698
Per Person
View Trip
21 Day Grand Tour of Vietnam & Cambodia with Emerald Cruises
Tour + River Cruise
 (6)

21 Days Hanoi to Ho Chi Minh City
Cruise Line: Emerald Cruises
Ships: Emerald Harmony
Departures: Oct 2026 to Apr 2028
Rivers: Mekong
Visits: Vietnam, Cambodia
Exclusive Savings
River View
$9,718
Balcony
$10,610
Suite
$12,786
From (Per Person)
A$9,718
Save 1,698
Per Person
View Trip
21 Day Thailand, Malaysia and Singapore Escapade with Contiki
Tour

21 Days Bangkok to Singapore
Operator: Contiki
Departures: Aug 2026 to Mar 2028
Trip Styles: Coach, 18-30's, Scenic
Visits: Thailand, Malaysia, Singapore
Exclusive Savings
From (Per Person)
A$5,498
Save 681
Per Person
View Trip
21 Day Vietnam Explorer with Explore Worldwide
Tour

21 Days Hanoi to Ho Chi Minh city
Operator: Explore
Departure: 08 November 2026
Trip Styles: Adventure, Small Group
Visits: Vietnam
Exclusive Savings
From (Per Person)
A$4,860
Save 360
Per Person
View Trip
21 Day Southeast Asia: Hilltribes & Street Food with G Adventures
Tour

21 Days Bangkok to Singapore
Operator: G Adventures
Departures: Jul 2026 to Dec 2028
Trip Styles: Adventure, Small Group, 18-30's, Walking & Hiking
Visits: Malaysia, Thailand, Singapore
Exclusive Savings
From (Per Person)
A$2,772
Save 63
Per Person
View Trip
21 Day Walking in Vietnam & Cambodia Highlights with Explore Worldwide
Tour

21 Days Hanoi to Siem Reap
Operator: Explore
Departures: Oct 2026 to Oct 2027
Trip Styles: Adventure, Coach, Small Group, Walking & Hiking, Scenic
Visits: Vietnam, Cambodia
Exclusive Savings
From (Per Person)
A$4,528
Save 416
Per Person
View Trip
21 Day Mekong Explorer with Wendy Wu Tours
New ReleaseTour + River CruiseFlights Included

21 Days Hanoi to Siem Reap
Cruise Line: Wendy Wu
Departures: Mar 2027 to Nov 2027
Rivers: Mekong
Visits: Cambodia, Vietnam
Exclusive Savings
From (Per Person)
A$10,466
Save 926
Per Person
View Trip
21 Day Indonesia: Java, Bali & Komodo Island with G Adventures
New ReleaseTour

21 Days Yogyakarta to Labuan Bajo
Operator: G Adventures
Departures: Nov 2026 to Aug 2027
Trip Styles: Adventure, Small Group
Visits: Indonesia
Exclusive Savings
From (Per Person)
A$4,039
Save 810
Per Person
View Trip
21 Day Indonesia Adventure: Java & Bali with G Adventures
Tour

21 Days Jakarta to Gili Trawangan
Operator: G Adventures
Departures: Jul 2026 to Dec 2026
Trip Styles: Adventure, Small Group, 18-30's
Visits: Indonesia
Exclusive Savings
From (Per Person)
A$3,233
Save 74
Per Person
View Trip
21 Day Best of Java & Sumatra with G Adventures
New ReleaseTour

21 Days Medan to Surabaya
Operator: G Adventures
Departures: Sep 2026 to Sep 2027
Trip Styles: Adventure, Small Group
Visits: Indonesia
Exclusive Savings
From (Per Person)
A$3,714
Save 745
Per Person
View Trip
21 Day Epic Vietnam to Cambodia with Intrepid Travel
Tour

21 Days Hanoi to Bangkok
Operator: Intrepid
Departures: Aug 2026 to Dec 2028
Trip Styles: Adventure, Small Group, Rail, 18-30's, Ha Long Bay
Visits: Vietnam, Cambodia, Thailand
Exclusive Savings
From (Per Person)
A$2,102
Save 200
Per Person
View Trip
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Travel Styles

18-30's Tours Active Adventures Coach Tours Cycling Tours Family Holidays Festivals & Events Food & Wine Tours Kayaking Trips Luxury Tours Rail Journeys Short Breaks Small Group Tours Walking & Hiking Tours Wildlife Tours

Trip Lengths

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

Departure Months

July August September October November December January February March April May June

Asia Cruises

Asia Cruises China Cruises Japan Cruises South East Asia Cruises Ha Long Bay Cruises

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