Find cheap flights from Ontario to Bangkok - Compare and Save

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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Ontario and Bangkok. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Top routes
ONT - BKK
Cheapest • 9% average savings
ONT - DMK
Most popular
Insights
Insights
When to book
15 weeks
in advance
Our data shows that travelers who book at least 15 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 11% price drop
December
Most popular
Good to know
+1
Good to know
+1
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Cheap Flights from Ontario to Bangkok (ONT-BKK)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Bangkok

Multiple Airlines Logo
ONT  Ontario Airport-TH1 Glasgow Thorntonhall
8285 mimulti-stop
Multiple Airlines Logo
TH1  Glasgow Thorntonhall-ONT Ontario Airport
8285 mimulti-stop
Multiple Airlines
Booking Insights

Price, demand and travel trends for Ontario to Bangkok flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Ontario to Bangkok?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to Bangkok. It’s 7% cheaper than the average day, while Friday is the most expensive, with prices 18% higher.

What’s the cheapest month to fly from Ontario to Bangkok?

•January is the cheapest month to fly from Ontario to Bangkok at $769 round-trip.
•June ($1,555) and December ($1,456) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 102% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Ontario to Bangkok the cheapest?

Flights from Ontario to Bangkok are cheapest 15 weeks before departure. Booking in this window typically costs about 11% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Ontario to Bangkok flights

Low season

July
Beat the crowds with an average 38% drop in travelers.
The most popular month to fly with an average 52% increase in travelers.

When to book flights from Ontario to Bangkok

Are your dates flexible? Find out the best times to travel from Ontario to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Bangkok flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Ontario to Bangkok?

    Four cabin classes are available on flights from Ontario to Bangkok:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Ontario to Bangkok?

    A nonstop flight from Ontario to Bangkok takes 00m, covering 8,285 miles.

  • Do I need a passport to fly from Ontario to Bangkok?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Ontario to Bangkok flight?

    Round-trip flights from Ontario to Bangkok range from $774 to $1,079, with an average of $866 over the past 12 months. Anything below $774 counts as a good deal.

  • How expensive are last-minute Ontario to Bangkok flights?

    Last-minute fares on this route (booked within two weeks of departure) run 1% above the $866 route average. Book 15 weeks before departure for the lowest fares.

  • What car rental options are available in Bangkok?

    Since Bangkok is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Bangkok Suvarnabhumi Airport (BKK) — daily rates from around $13:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Yesaway
    • Hertz

    Near Bangkok Don Mueang Intl Airport (DMK) — daily rates from around $7:

    • Drive Car Rental
    • Alamo
    • Thai Rent
    • Chic Car Rent
    • Hertz

  • Which airports can I use when flying from Ontario to Bangkok?

    Flights from Ontario to Bangkok usually depart from Ontario (ONT) and may arrive at several airports in Bangkok area, including Bangkok Suvarnabhumi (BKK) and Bangkok Don Mueang Intl (DMK).

  • Which airports do connecting flights from Ontario to Bangkok pass through?

    Most connecting flights from Ontario to Bangkok pass through Taipei City Taiwan Taoyuan Intl (TPE), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Ontario to Bangkok?

    Yes. Flexible dates can save you up to 21% on flights from Ontario to Bangkok. Monday is the cheapest departure day at $814 round-trip on average, while Friday is the most expensive at $1,022, a difference of $208.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Ontario and Bangkok?

    Bangkok is 14 hours ahead of Ontario (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Bangkok?

    Some of the most popular sights in Bangkok are Pratunam, Siam Square and Thailand Cultural Center. These are among the most viewed places in Bangkok on KAYAK.

Your guide to booking Ontario to Bangkok flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Ontario to Bangkok

Complete your trip to Bangkok with a hotel stay or car rental

Car rentals in Bangkok
Hotels in Bangkok
Vacations in Bangkok