thumb|375x375px|Thai Airways [[Boeing 747-400 departing Tokyo–Haneda Airport in 2017.]]
Thai Airways International serves a total of 65 destinations, including 9 domestic destinations within Thailand and 56 international destinations across 29 countries from its home base at Bangkok–Suvarnabhumi Airport.
The country with the most international destinations served is India with 7 destinations, followed by Japan with 6 destinations, China with 5 destinations, and Australia and Pakistan with 3 destinations each.
The airline is expected to resume flights to Amsterdam and Auckland in late 2026, followed by the resumption of flights to Chongqing and Changsha, and the launch of a new service to Shenzhen. Thai Airways will also increase frequencies on the Beijing–Capital, Guangzhou, Delhi, Mumbai, Chennai, Kolkata, Bangalore, and Hyderabad routes following the delivery of new aircraft.
List
center|thumb|835x835px|Thai Airways passenger destinations
{| class="wikitable sortable"
!Country
!City
!Airport
!Notes
! class="unsortable" |Refs
|-
|rowspan="5"|Australia||Brisbane||Brisbane Airport||||align=center|
|-
|Cairns||Cairns Airport||||align=center|
|-
|Perth||Perth Airport||align=center| ||align=center|
|-
|Sydney||Sydney Airport||align=center| ||align=center|
|-
|Brunei||Bandar Seri Begawan||Brunei International Airport||||align=center|
|-
|rowspan="4"|Cambodia||rowspan="2"|Phnom Penh||Phnom Penh International Airport||||align=center|
|-
|Techo International Airport||align=center| ||align=center|
|-
|rowspan="2"|Siem Reap||Siem Reap–Angkor International Airport||||align=center|
|-
|Siem Reap International Airport||||align=center|
|-
|Canada||Toronto||Toronto Pearson International Airport||||align=center|
|-
|rowspan="16"|China||Beijing||Beijing Capital International Airport||align=center| ||align=center|
|-
|Chengdu Tianfu International Airport||align=center| ||align=center|
|-
|rowspan="2"|Greece||rowspan="2"|Athens||Athens International Airport||||align=center|
|-
|Ellinikon International Airport||||align=center|
|-
|Guam||Hagåtña||Antonio B. Won Pat International Airport||||align=center|
|-
|rowspan="2"|Hong Kong||rowspan="2"|Hong Kong||Hong Kong International Airport||align=center| ||align=center|
|-
|Bengaluru||Kempegowda International Airport||align=center| ||align=center|
|-
|Chennai||Chennai International Airport||align=center| ||align=center|
|-
|Kolkata||Netaji Subhas Chandra Bose International Airport||align=center| ||align=center|
|-
|Mumbai||Chhatrapati Shivaji Maharaj International Airport||align=center| ||align=center|
|-
|Mehrabad International Airport||||align=center|
|-
|Iraq||Baghdad||Baghdad International Airport||||align=center|
|-
|rowspan="2"|Italy||Milan||Milan Malpensa Airport||align=center| ||align=center|
|-
|Rome||Rome Fiumicino Airport||||align=center|
|-
|rowspan="2"|Laos||Luang Prabang||Luang Prabang International Airport||||align=center|
|-
|Vientiane||Wattay International Airport||align=center| ||align=center|
|-
|rowspan="2"|Myanmar||Mandalay||Mandalay International Airport||||align=center|
|-
|Yangon||Yangon International Airport||align=center| ||align=center|
|-
|Netherlands||Amsterdam||Amsterdam Airport Schiphol||||align=center|
|-
|New Caledonia||Nouméa||La Tontouta International Airport||||align=center|
|-
|rowspan="2"|New Zealand||Auckland||Auckland Airport||||align=center|
|-
|Norway||Oslo||Oslo Gardermoen Airport||align=center| ||align=center|
|-
|Riyadh||King Khalid International Airport||||align=center|
|-
|rowspan="3"|South Korea||Busan||Gimhae International Airport||||align=center|
|-
|Sri Lanka||Colombo||Bandaranaike International Airport||align=center| ||align=center|
|-
|Chiang Mai||Chiang Mai International Airport||||align=center|
|-
|Chiang Rai||Chiang Rai International Airport||align=center| ||align=center|
|-
|Hat Yai||Hat Yai International Airport||align=center| ||align=center|
|-
|Krabi||Krabi International Airport||align=center| ||align=center|
|-
|United Arab Emirates||Dubai||Dubai International Airport||||align=center|
|-
|New York City||John F. Kennedy International Airport||||align=center|
|-
|Seattle||Seattle–Tacoma International Airport||||align=center|
