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United Airlines flights from Bangkok Suvarnabhumi Airport to St. Louis (BKK - STL)

BKK — STL
2 Jun — 9 Jun1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from Bangkok to St. Louis on United Airlines typically fly into Lambert-St Louis and depart from Bangkok Suvarnabhumi. Select your dates above for pricing.

United Airlines flights from Suvarnabhumi to St. Louis in 2026

Find detailed information about United Airlines flights from Suvarnabhumi to St. Louis. Explore the options provided by United Airlines to plan your journey from Suvarnabhumi to St. Louis. Data last updated 3 May 2026.

One-way from

฿30,876

Return from

฿47,350

Popular in

March

Cheapest in

February

Average price (all airlines)

฿38,514
United Airlines
  • United Airlines
  • 25/9
  • 3 total stops
  • 42h 03m total
  • Bangkok to St. Louis
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United Airlines
  • United Airlines
  • 22/10-26/10
  • 5 total stops
  • 70h 49m total
  • Bangkok to St. Louis
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Highest demand for flights from Bangkok Suvarnabhumi to Lambert-St Louis; 3% potential price increase.
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Best time to find cheap flights from Bangkok Suvarnabhumi to Lambert-St Louis; 3% potential price drop.
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Average price for all Bangkok Suvarnabhumi to Lambert-St Louis flights (one-way and round-trip).
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Find United Airlines flight deals from Suvarnabhumi to St. Louis

Enter your travel dates to find the best prices.

Cheapest United Airlines flights from Suvarnabhumi to St. Louis
Explore the most affordable United Airlines flight options available from Suvarnabhumi to St. Louis. Find the lowest fares with prices last updated on 3 May 2026.

Thu 14/515:45
BKK
-
STL
3 stops28h 54m
United Airlines
Sun 17/506:00
STL
-
BKK
3 stops39h 35m
United Airlines
Deal found 30/4฿61,202
Thu 28/515:45
BKK
-
STL
3 stops30h 22m
United Airlines
Thu 4/606:00
STL
-
BKK
2 stops29h 55m
United Airlines
Deal found 30/4฿61,299

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 inches per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Best time to book a flight from Suvarnabhumi to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Suvarnabhumi with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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Other United Airlines flights from Suvarnabhumi

Browse through other United Airlines flights departing from Suvarnabhumi. Flight routes are based on user searches made on Cheapflights and were last updated on 3 May 2026.
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See what others are saying about United Airlines

Read reviews and see what other travellers are saying about their experiences with United Airlines. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing United Airlines for your next flight. Reviews last updated 3 May 2026.
United Airlines
7.4
Good
9,681 reviews
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Overview

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

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