Home > Tours > Asia Tours & River Cruises > 3 Week Trips

3 Week Trips through Asia

Looking to explore Asia for 3 weeks? Then choose from our range of river cruises and guided land tours with 9 of the best tour operators & cruise lines to Asia. October and November are the most popular months to travel through Asia and we have 921 departures available.
Filter Results
Departures
Show More...
Types
Regions
Trip Styles
Show More...
Budget
Start & End Cities
Operators
Show More...
Price
$1,200pp
$66,750pp
Countries
Show More...
Filter Results
20 trips (921 trip Departures)
21 Day Vietnam & Cambodia Intro with Intro Travel
Tour
 (3)

21 Days Hanoi to Siem Reap
Operated By: Intro Travel
Departures: Jan 2026 to Nov 2027
Trip Styles: Small Group, 18-30's, Scenic
Visit: Vietnam, Cambodia
Exclusive Savings
From
US$2,398
Save 135
Per Person
View Trip
21 Day Grand Tour of Vietnam & Cambodia with Emerald Cruises
River Cruise
 (4)

21 Days Hanoi to Siem Reap
Cruise Line: Emerald Cruises
Ship: Emerald Harmony
Departures: Dec 2025 to Apr 2027
Rivers: Mekong
Visit: Vietnam, Cambodia
Early Payment Discount
Fly Free Economy
Black Friday Sale
Exclusive Savings
Inside
-
River View
$6,689
Balcony
$7,174
Suite
$9,405
From
US$6,689
Save 7,391
Per Person
View Trip
21 Day Epic India to Nepal with Intrepid Travel
Tour

21 Days Delhi to Kathmandu
Operated By: Intrepid Travel
Departures: Dec 2025 to Dec 2027
Visit: India, Nepal
Exclusive Savings
From
US$1,278
Save 155
Per Person
View Trip
21 Day North to South India: The Taj Mahal & Goa Good Times with G Adventures
Tour

21 Days Delhi to Kochi
Operated By: G Adventures
Departures: Dec 2025 to Jul 2026
Trip Styles: Adventure, Small Group, 18-30's
Visit: India
Black Friday Deal
Exclusive Savings
From
US$1,329
Save 645
Per Person
View Trip
21 Day Discover Darjeeling & Bhutan with Explore Worldwide
Tour

21 Days Kolkata to Kathmandu
Operated By: Explore Worldwide
Departures: Oct 2026 to Oct 2026
Visit: Nepal, Bhutan, India
Sign Up Savings
Exclusive Savings
From
US$6,425
Save 935
Per Person
View Trip
21 Day Southeast Asia: Bangkok, Laos & The Cardamom Mountains with G Adventures
New ReleaseTour

21 Days Siem Reap to Luang Prabang
Operated By: G Adventures
Departures: May 2026 to Dec 2026
Trip Styles: Adventure, Small Group
Visit: Cambodia, Thailand, Laos
Exclusive Savings
From
US$6,886
Save 225
Per Person
View Trip
21 Day Grand Tour of Vietnam & Cambodia with Emerald Cruises
River Cruise
 (4)

21 Days Hanoi to Ho Chi Minh City
Cruise Line: Emerald Cruises
Ship: Emerald Harmony
Departures: Jan 2026 to Apr 2027
Rivers: Mekong
Visit: Vietnam, Cambodia
Fly Free Economy
Black Friday Sale
Exclusive Savings
Inside
-
River View
$6,398
Balcony
$6,883
Suite
$9,114
From
US$6,398
Save 6,747
Per Person
View Trip
21 Day Thailand & Vietnam: Mountains & Coastlines with G Adventures
Tour

21 Days Bangkok to Ho Chi Minh City
Operated By: G Adventures
Departures: Dec 2025 to Mar 2026
Trip Styles: Adventure, Small Group, 18-30's
Visit: Vietnam, Thailand
Black Friday Deal
Exclusive Savings
From
US$1,455
Save 736
Per Person
View Trip
21 Day Epic Vietnam to Cambodia with Intrepid Travel
Tour

21 Days Hanoi to Bangkok
Operated By: Intrepid Travel
Departures: Dec 2025 to Dec 2027
Trip Styles: Adventure, Small Group, Rail, 18-30's
Visit: Vietnam, Cambodia, Thailand
Exclusive Savings
From
US$1,390
Save 278
Per Person
View Trip
21 Day Ancient Kingdoms of Japan and South Korea with APT
Tour

21 Days Seoul to Osaka
Operated By: APT
Departures: Mar 2026 to Oct 2026
Trip Styles: Coach, Rail, Scenic
Visit: South Korea, Japan
Black Friday Saving
Exclusive Savings
From
US$16,766
Save 945
Per Person
View Trip
21 Day Best of Java & Sumatra with G Adventures
New ReleaseTour

21 Days Medan to Surabaya
Operated By: G Adventures
Departures: Jan 2026 to Nov 2027
Trip Styles: Adventure, Small Group
Visit: Indonesia
Black Friday Deal
Exclusive Savings
From
US$2,431
Save 539
Per Person
View Trip
21 Day Indonesia: Java, Bali & Komodo Island with G Adventures
New ReleaseTour

21 Days Yogyakarta to Labuan Bajo
Operated By: G Adventures
Departures: Feb 2026 to Oct 2027
Trip Styles: Adventure, Small Group
Visit: Indonesia
Black Friday Deal
Exclusive Savings
From
US$2,720
Save 579
Per Person
View Trip
21 Day Thailand, Malaysia and Singapore Escapade with Contiki
Tour

21 Days Bangkok to Singapore
Operated By: Contiki
Departures: Dec 2025 to Mar 2027
Trip Styles: Coach, 18-30's, Scenic
Visit: Thailand, Malaysia, Singapore
Exclusive Savings
From
US$3,636
Save 639
Per Person
View Trip
21 Day Indonesia Adventure: Java & Bali with G Adventures
Tour

21 Days Jakarta to Gili Trawangan
Operated By: G Adventures
Departures: Dec 2025 to Dec 2028
Trip Styles: Adventure, Small Group, 18-30's
Visit: Indonesia
Black Friday Deal
Exclusive Savings
From
US$1,731
Save 818
Per Person
View Trip
21 Day Walking in Vietnam & Cambodia Highlights with Explore Worldwide
Tour

21 Days Hanoi to Siem Reap
Operated By: Explore Worldwide
Departures: Dec 2025 to Dec 2026
Visit: Vietnam, Cambodia
Sign Up Savings
Exclusive Savings
From
US$2,837
Save 413
Per Person
View Trip
21 Day Mera Peak Climb with Exodus Adventure Travels
New ReleaseTour

21 Days Kathmandu to Kathmandu
Departures: Mar 2026 to Nov 2027
Visit: Nepal
Sign Up Savings
Exclusive Savings
From
US$5,500
Save 8,477
Per Person
View Trip
21 Day Colors of India's Golden Triangle & Rajasthan with Varanasi, Khajuraho & Kerala with Cosmos
New ReleaseTour

21 Days Delhi to Kumarakom
Operated By: Cosmos
Departures: Oct 2026 to Nov 2027
Trip Styles: Coach, Scenic
Visit: India
Black Friday Sale
Exclusive Savings
From
US$5,160
Save 421
Per Person
View Trip
21 Day Vietnam Explorer with Explore Worldwide
Tour

21 Days Hanoi to Ho Chi Minh city
Operated By: Explore Worldwide
Departures: Jan 2026 to Dec 2026
Trip Styles: Adventure, Small Group
Visit: Vietnam
Sign Up Savings
Exclusive Savings
From
US$2,776
Save 419
Per Person
View Trip
21 Day Southeast Asia: Hilltribes & Street Food with G Adventures
Tour

21 Days Bangkok to Singapore
Operated By: G Adventures
Departures: Jan 2026 to Dec 2028
Visit: Malaysia, Thailand, Singapore
Black Friday Deal
Exclusive Savings
From
US$1,469
Save 690
Per Person
View Trip
21 Day The Five Stans of The Silk Road with Explore Worldwide
Tour

21 Days Bishkek to Ashgabat
Operated By: Explore Worldwide
Departures: May 2026 to Sep 2026
Trip Styles: Adventure, Small Group, Off The Beaten Track
Visit: Kyrgyzstan, Uzbekistan, Kazakhstan, Tajikistan, Turkmenistan
Sign Up Savings
Exclusive Savings
From
US$6,286
Save 972
Per Person
View Trip
Results: 20 results

No results found. Try amending the search filters.




trips found! Scroll up to view.

Asia Tours

Asia Tours Cambodia Tours Central Asia Tours China Tours Georgia & Armenia Tours India Tours Indonesia Tours Japan Tours Laos Tours Malaysia Tours Mongolia Tours Nepal Tours Philippines Tours South East Asia Tours South Korea Tours Sri Lanka Tours Thailand Tours Uzbekistan Tours Vietnam Tours

Travel Styles

18-30's Tours 4WD Trips Active Adventures Coach Tours Cycling Tours Family Holidays Festivals & Events Festive Tours Food & Wine Tours Kayaking Trips Luxury Tours Rafting Trips Rail Journeys Short Breaks Small Group Tours Walking & Hiking Tours Wildlife Tours Winter Tours & Trips

Trip Lengths

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

Departure Months

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

Asia Cruises

Asia Cruises China Cruises Japan Cruises South East Asia Cruises

© 2010-2025. Global Journeys. You're viewing our site in US dollars.

    

About Us | View Your Booking | Terms & Conditions | Site Map | We're hiring!

Global Journeys Travel Inc. is a Member of the American Society of Travel Advisors (ASTA No: 900374670), CLIA (No. 00046729) & is TICO Accredited (No. 50027921).

Travel Industry Associations