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United Airlines flights from Bangkok Suvarnabhumi Airport to Ontario (BKK - ONT)

BKK — ONT
17 Aug — 24 Aug1
1 adult
1 adult, Economy, 0 bags

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Cheapest United Airlines flights from Suvarnabhumi to Ontario
Explore the most affordable United Airlines flight options available from Suvarnabhumi to Ontario. Find the lowest fares with prices last updated on 18 July 2026.

Sat 29/807:00
BKK
-
ONT
2 stops27h 01m
United Airlines
Sat 5/913:56
ONT
-
BKK
2 stops48h 39m
United Airlines
Deal found 15/7฿32,704
Fri 28/807:00
BKK
-
ONT
2 stops25h 11m
United Airlines
Fri 4/906:08
ONT
-
BKK
2 stops32h 27m
United Airlines
Deal found 14/7฿32,772
Wed 29/709:35
BKK
-
ONT
2 stops51h 02m
United Airlines
Sat 1/813:18
ONT
-
BKK
2 stops44h 37m
United Airlines
Deal found 18/7฿34,116

United Airlines flights from Suvarnabhumi to Ontario in 2026

Find detailed information about United Airlines flights from Suvarnabhumi to Ontario. Explore the options provided by United Airlines to plan your journey from Suvarnabhumi to Ontario. Data last updated 18 July 2026.

One-way from

฿20,234

Return from

฿27,797

Popular in

September

Cheapest in

February
United Airlines
  • United Airlines
  • 31/8
  • 2 total stops
  • 46h 36m total
  • Bangkok to Ontario
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United Airlines
  • United Airlines
  • 10/9-5/10
  • 3 total stops
  • 64h 04m total
  • Bangkok to Los Angeles
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Highest demand for flights from Bangkok Suvarnabhumi to Ontario; 7% potential price increase.
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Best time to find cheap flights from Bangkok Suvarnabhumi to Ontario; 1% potential price drop.
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Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

Best time to book a flight from Suvarnabhumi to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario 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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Fly from Suvarnabhumi to Ontario on another airline

Consider alternative airlines that service the Ontario area. Flight routes are based on user searches made on Cheapflights and were last updated on 18 July 2026.
China Airlines flights from Bangkok Suvarnabhumi to Ontario

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 18 July 2026.
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7.4
Good
10,000 reviews
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Overview

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

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