Cheap flights from St. Louis to Bangkok from £401
Trusted by millions
Kiwi.com Guarantee for stress-free travel
One search, all the best deals
Explore flight deals to Bangkok
Not happy with the results? Try some of our useful filters
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
Not happy with the results? Try some of our useful filters
How much do flights to Bangkok cost?
Cheapest one-way trip | £401 |
|---|---|
Cheapest round-trip | £1,175 |
Average round-trip | £1,619 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
Getting from Bangkok's airports to the city center
Fastest options: Airport Rail Link (BKK) and taxi. Best value: public buses and the Airport Rail Link.
From Suvarnabhumi Airport (BKK)
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
26-30 min | ฿45 (flat fare to Phaya Thai (~$1.30 USD)) | every 10–15 min (traffic dependent) | budget travelers to BTS | |
60-90 min | ฿60 (flat fare (~$1.70 USD)) | every 30 min (traffic dependent) | backpackers to Khao San | |
30-60 min | ฿250-฿400 (metered plus 50 THB airport surcharge and tolls (~$7–12 USD)) | on-demand 24/7 (traffic dependent) | door-to-door with luggage | |
30-60 min | ฿300-฿500 (varies by demand and vehicle type (~$9–15 USD)) | on-demand 24/7 (traffic dependent) | app-based convenience | |
30-60 min | ฿800-฿1,500 (pre-booked sedan or van (~$23–43 USD)) | pre-booked (traffic dependent) | groups or premium comfort |
From Don Mueang International Airport (DMK)
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
20-40 min | ฿30 (flat fare (~$0.85 USD)) | every 10–20 min (traffic dependent) | budget connection to BTS | |
30-60 min | ฿200-฿350 (metered plus 50 THB airport surcharge and tolls (~$6–10 USD)) | on-demand 24/7 (traffic dependent) | door-to-door with luggage | |
30-60 min | ฿250-฿450 (varies by demand and vehicle type (~$7–13 USD)) | on-demand 24/7 (traffic dependent) | app-based convenience |
Notes:
- Prices in THB; table created in 2025 and subject to change.
- Bangkok traffic can be severe, especially during rush hours (7–9 AM and 5–8 PM). Allow extra time for road-based transport.
- The Airport Rail Link connects to BTS Skytrain at Phaya Thai station and MRT at Makkasan station.
- Metered taxis charge a 50 THB airport surcharge plus expressway tolls (typically 25–75 THB).
- We recommend checking official transport websites for your travel planning.
Updated: December 2025
Key info about flying to Bangkok
Check-in for a flight from St. Louis to Bangkok
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Frontier Airlines | FFT | F9 | No |
| Alaska Airlines | ASA | AS | No |
| Korean Air | KAL | KE | Yes |
| Thai AirAsia | AIQ | FD | No |
| Thai Lion Air | TLM | SL | Yes |
Online check-in is not available for these airlines.
Weather in Bangkok
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 32°C | 23°C |
| February | 33°C | 25°C |
| March | 34°C | 27°C |
| April | 35°C | 28°C |
| May | 34°C | 28°C |
| June | 33°C | 27°C |
| July | 31°C | 26°C |
| August | 32°C | 26°C |
| September | 31°C | 26°C |
| October | 31°C | 25°C |
| November | 31°C | 24°C |
| December | 31°C | 23°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.
Explore alternative trips
Flights from St. Louis
Flights to Bangkok
Popular routes
Airports near St. Louis
Airports near Bangkok
Download our app