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3 Week Thailand Tours

Looking to discover the best of Thailand on a 3 week tour? Then choose from our range of unique multi-day cruises, sailing adventures and guided tours with three leading tour operators that explore Thailand. May, June and July are the most popular months to travel to Thailand and we have 381 tour departures available.
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3 Tours (381 Tour Departures)
21 Day Southeast Asia: Hilltribes & Street Food with G Adventures
Tour

21 Days Bangkok to Singapore
Operated By: G Adventures
Departures: Apr 2026 to Dec 2028
Visit: Malaysia, Thailand, Singapore
Exclusive Savings
From
US$1,731
Save 386
Per Person
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21 Day Epic Vietnam to Cambodia with Intrepid Travel
Tour

21 Days Hanoi to Bangkok
Operated By: Intrepid Travel
Departures: Mar 2026 to Dec 2027
Trip Styles: Adventure, Small Group, Rail, 18-30's
Visit: Vietnam, Cambodia, Thailand
Exclusive Savings
From
US$1,644
Save 183
Per Person
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21 Day Thailand, Malaysia and Singapore Escapade with Contiki
Tour

21 Days Bangkok to Singapore
Operated By: Contiki
Departures: Mar 2026 to Mar 2027
Trip Styles: Coach, 18-30's, Scenic
Visit: Thailand, Malaysia, Singapore
Exclusive Savings
From
US$3,805
Save 481
Per Person
View Trip
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Travel Styles

18-30's Tours Adventure Tours Coach Tours Cycling Tours Family Tours Festivals & Events Tours Food & Wine Tours Rail Tours Short Break Tours Small Group Tours Walking & Hiking Tours

Trip Lengths

1 Month 10 Day 2 Week 3 Week 7 Day

Departure Months

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

Cities

Bangkok

Routes

Bangkok to Bangkok Bangkok to Chiang Mai Bangkok to Ho Chi Minh City Bangkok to Phuket Hanoi to Bangkok Ho Chi Minh City to Bangkok

Asia Cruises

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