ONT - BKK

฿12,164 Find Cheap Flights from Ontario to Bangkok Suvarnabhumi Airport – Compare and Save

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Everything you should know

Cheapest return flight
฿27,889
Typical prices: ฿26,016-฿36,269
เดลต้า
Fri 12/1Wed 7/2
ONT - BKK • 2 stops
Cheapest one-way flight
฿12,164
Typical prices: ฿14,327-฿21,765
Korean Air
Fri 23/2
ONT - BKK • 2 stops
Direct flights
Not available
There are currently no direct flights between Ontario and Bangkok Suvarnabhumi Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
15 weeks
in advance
Our data shows that travellers 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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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Bangkok Suvarnabhumi Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Suvarnabhumi (ONT-BKK)

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

Recent return flight deals from Ontario to Suvarnabhumi

Tue 12 Jan - Sun 7 Feb
เดลต้า Logo
15:30 - 13:25ONT  Ontario-BKK Bangkok Suvarnabhumi
30h 55m2 stops Seattle/Tacoma Intl Incheon Intl
เดลต้า Logo
01:05 - 22:43BKK  Bangkok Suvarnabhumi-ONT Ontario
36h 38m2 stops Incheon Intl Seattle/Tacoma Intl
฿27,889เดลต้า
Wed 10 Feb - Sun 21 Feb
เดลต้า Logo
07:00 - 21:30ONT  Ontario-BKK Bangkok Suvarnabhumi
23h 30m2 stops Seattle/Tacoma Intl Incheon Intl
เดลต้า Logo
23:15 - 13:57BKK  Bangkok Suvarnabhumi-ONT Ontario
29h 42m2 stops Incheon Intl Seattle/Tacoma Intl
฿27,922เดลต้า
Sat 16 Jan - Sun 7 Feb
เดลต้า Logo
07:00 - 21:30ONT  Ontario-BKK Bangkok Suvarnabhumi
23h 30m2 stops Seattle/Tacoma Intl Incheon Intl
เดลต้า Logo
01:05 - 22:43BKK  Bangkok Suvarnabhumi-ONT Ontario
36h 38m2 stops Incheon Intl Seattle/Tacoma Intl
฿28,090เดลต้า
Wed 25 Nov - Tue 22 Dec
เดลต้า Logo
07:00 - 13:25ONT  Ontario-BKK Bangkok Suvarnabhumi
39h 25m2 stops Seattle/Tacoma Intl Incheon Intl
เดลต้า Logo
23:15 - 22:37BKK  Bangkok Suvarnabhumi-ONT Ontario
38h 22m2 stops Incheon Intl Seattle/Tacoma Intl
฿28,292เดลต้า
Wed 2 Dec - Sat 30 Jan
เดลต้า Logo
17:55 - 13:25ONT  Ontario-BKK Bangkok Suvarnabhumi
52h 30m2 stops Seattle/Tacoma Intl Incheon Intl
เดลต้า Logo
23:15 - 13:57BKK  Bangkok Suvarnabhumi-ONT Ontario
29h 42m2 stops Incheon Intl Seattle/Tacoma Intl
฿28,494เดลต้า
Sun 6 Dec - Sun 13 Dec
Korean Air Logo
07:00 - 13:25ONT  Ontario-BKK Bangkok Suvarnabhumi
39h 25m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
23:15 - 22:59BKK  Bangkok Suvarnabhumi-ONT Ontario
38h 44m2 stops Incheon Intl Seattle/Tacoma Intl
฿28,561Korean Air
Tue 3 Nov - Fri 6 Nov
Korean Air Logo
06:20 - 21:30ONT  Ontario-BKK Bangkok Suvarnabhumi
24h 10m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
01:05 - 17:12BKK  Bangkok Suvarnabhumi-ONT Ontario
31h 07m2 stops Incheon Intl Seattle/Tacoma Intl
฿29,804Korean Air
Wed 13 Jan - Wed 10 Feb
United Airlines Logo
07:25 - 00:20ONT  Ontario-BKK Bangkok Suvarnabhumi
25h 55m2 stops San Francisco Tokyo Narita
United Airlines Logo
09:10 - 17:35BKK  Bangkok Suvarnabhumi-ONT Ontario
23h 25m2 stops Tokyo Haneda San Francisco
฿29,838United Airlines
Mon 18 Jan - Wed 3 Mar
United Airlines Logo
05:00 - 00:20ONT  Ontario-BKK Bangkok Suvarnabhumi
28h 20m2 stops Denver Intl Tokyo Narita
United Airlines Logo
07:10 - 15:27BKK  Bangkok Suvarnabhumi-ONT Ontario
23h 17m2 stops Tokyo Narita San Francisco
฿29,905United Airlines
Tue 5 Jan - Wed 3 Feb
United Airlines Logo
14:00 - 11:30ONT  Ontario-BKK Bangkok Suvarnabhumi
30h 30m2 stops San Francisco Hong Kong Intl
United Airlines Logo
09:10 - 17:35BKK  Bangkok Suvarnabhumi-ONT Ontario
23h 25m2 stops Tokyo Haneda San Francisco
฿30,006United Airlines
Booking Insights

Price, demand, and travel trends for Ontario to Bangkok Suvarnabhumi Airport flights

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

How much is a return flight from Ontario to Bangkok Suvarnabhumi Airport?

Return flights from Ontario to Bangkok Suvarnabhumi Airport typically range from ฿26,016 to ฿36,269. The lowest price found in the past 5 days was ฿27,889 on เดลต้า.

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

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 Suvarnabhumi Airport. It’s 7% cheaper than the average day, while Friday is the most expensive, with prices 18% higher.

What is the cheapest month to fly from Ontario to Bangkok Suvarnabhumi Airport?

•January is the cheapest month to fly from Ontario to Bangkok Suvarnabhumi Airport at ฿25,839 return.
•June (฿52,249) and December (฿48,923) 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 Suvarnabhumi Airport the cheapest?

Flights from Ontario to Bangkok Suvarnabhumi Airport 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.

Find deals

Key details for Ontario to Bangkok Suvarnabhumi Airport flights

Low season

July

Cheapest flight

฿12,164
Beat the crowds with an average 38% drop in traveller numbers.
The most popular month to fly with an average 52% increase in traveller numbers.
One-way flight from Ontario to Bangkok Suvarnabhumi Airport

When to book flights from Ontario to Suvarnabhumi

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

Your Ontario to Bangkok Suvarnabhumi Airport flight questions, answered

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

  • Which cabin classes can I book on flights from Ontario to Bangkok Suvarnabhumi Airport?

    Two cabin classes are available on flights from Ontario to Bangkok Suvarnabhumi Airport:

    • Economy class
    • Premium Economy Class

  • How long is a flight from Ontario to Bangkok Suvarnabhumi Airport?

    A direct flight from Ontario to Bangkok Suvarnabhumi Airport takes 00m, covering 21,444 km.

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

    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 Suvarnabhumi Airport flight?

    Return flights from Ontario to Bangkok Suvarnabhumi Airport range from ฿26,016 to ฿36,269, with an average of ฿29,107 over the past 12 months. Anything below ฿26,016 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 1% above the ฿29,107 route average. Book 15 weeks before departure for the lowest fares.

  • How are flight prices from Ontario to Bangkok Suvarnabhumi Airport looking right now?

    One-way fares from Ontario to Bangkok Suvarnabhumi Airport are currently lower than usual. Average one-way flight prices are about ฿13,182, which is 18% below the typical average for this route.

  • Which car hire options are available at Bangkok Suvarnabhumi Airport (BKK)?

    Bangkok Suvarnabhumi Airport (BKK) hosts 5 major car rental companies, with daily rates starting from around ฿434 for economy cars. Top options include:

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

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

    Flights from Ontario to Bangkok Suvarnabhumi Airport usually depart from Ontario (ONT) and arrive at Bangkok Suvarnabhumi (BKK).

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

    Most connecting flights from Ontario to Bangkok Suvarnabhumi Airport 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 Suvarnabhumi Airport?

    Yes. Flexible dates can save you up to 21% on flights from Ontario to Bangkok Suvarnabhumi Airport. Monday is the cheapest departure day at ฿27,351 return on average, while Friday is the most expensive at ฿34,340, a difference of ฿6,989.

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

  • What is the time difference between Ontario and Bangkok Suvarnabhumi Airport?

    Bangkok Suvarnabhumi Airport 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 Suvarnabhumi Airport?

    Some of the most popular sights in Bangkok Suvarnabhumi Airport are Victory Monument, Siam Square, and Pratunam. These are among the most viewed places in Bangkok Suvarnabhumi Airport on KAYAK.

Your guide to booking Ontario to Bangkok Suvarnabhumi Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average ฿27,351, about ฿6,989 less than Friday fares (20% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 11% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Ontario to Bangkok Suvarnabhumi Airport trip for January. Fares historically average ฿25,839 return in that month – typically ฿26,410 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Bangkok Suvarnabhumi Airport.

    • Regency Bangkok Suvarnabhumi Airpor
    • Suvarnabhumi Ville Airport Hotel
    • Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)

More options for your flight from Ontario to Suvarnabhumi

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

Car rentals in Bangkok
Hotels in Bangkok