ONT - BKK

$385 Find Cheap Flights from Ontario to Bangkok Suvarnabhumi Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$803
Typical prices: $769-$1,073
Korean Air
Fri 12/7Tue 12/25
ONT - BKK • 2 stops
Cheapest one-way
$385
Typical prices: $426-$617
Delta
Fri 11/9
ONT - BKK • 2 stops
Nonstop 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 travelers who book at least 15 weeks in advance save around 12% 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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We hope you love your trip to Bangkok Suvarnabhumi Airport!
Flight Deals
Booking Insights
Flight Deals

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

Mon, Dec 7 - Fri, Dec 25
Korean Air Logo
7:00 am - 12:45 amONT  Ontario-BKK Bangkok Suvarnabhumi
26h 45m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
12:55 am - 4:58 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
31h 03m2 stops Incheon Intl Seattle/Tacoma Intl
$803Korean Air
Thu, Sep 17 - Tue, Sep 22
China Airlines Logo
12:10 am - 4:20 pmONT  Ontario-BKK Bangkok Suvarnabhumi
26h 10m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
10:50 am - 6:00 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
21h 10m1 stop Taipei City Taiwan Taoyuan Intl
$804China Airlines
Sat, Sep 26 - Tue, Oct 13
China Airlines Logo
12:10 am - 4:20 pmONT  Ontario-BKK Bangkok Suvarnabhumi
26h 10m1 stop Taipei City Taiwan Taoyuan Intl
China Airlines Logo
1:20 pm - 6:00 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
18h 40m1 stop Taipei City Taiwan Taoyuan Intl
$806China Airlines
Tue, Sep 22 - Sun, Sep 27
Korean Air Logo
6:00 am - 11:35 pmONT  Ontario-BKK Bangkok Suvarnabhumi
27h 35m2 stops Seattle/Tacoma Intl Incheon Intl
Korean Air Logo
9:40 pm - 10:40 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
39h 00m2 stops Incheon Intl Seattle/Tacoma Intl
$817Korean Air
Thu, Dec 3 - Thu, Dec 24
Delta Logo
6:00 am - 9:30 pmONT  Ontario-BKK Bangkok Suvarnabhumi
24h 30m2 stops Salt Lake City Incheon Intl
Delta Logo
9:40 am - 6:00 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
23h 20m2 stops Incheon Intl Seattle/Tacoma Intl
$822Delta
Fri, Nov 27 - Wed, Dec 16
Delta Logo
6:00 am - 9:30 pmONT  Ontario-BKK Bangkok Suvarnabhumi
24h 30m2 stops Salt Lake City Incheon Intl
Delta Logo
9:40 am - 4:22 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
21h 42m2 stops Incheon Intl Salt Lake City
$822Delta
Thu, Jan 28 - Thu, Feb 11
United Airlines Logo
6:00 am - 5:10 amONT  Ontario-BKK Bangkok Suvarnabhumi
32h 10m2 stops San Francisco Tokyo Haneda
United Airlines Logo
9:10 am - 11:06 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
28h 56m2 stops Tokyo Haneda San Francisco
$858United Airlines
Fri, Jan 29 - Wed, Feb 10
United Airlines Logo
6:53 pm - 5:10 amONT  Ontario-BKK Bangkok Suvarnabhumi
43h 17m2 stops San Francisco Tokyo Haneda
United Airlines Logo
9:10 am - 3:27 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
21h 17m2 stops Tokyo Haneda San Francisco
$858United Airlines
Mon, Sep 21 - Sun, Oct 4
STARLUX Airlines Logo
11:30 pm - 12:00 pmONT  Ontario-BKK Bangkok Suvarnabhumi
22h 30m1 stop Taipei City Taiwan Taoyuan Intl
STARLUX Airlines Logo
5:50 pm - 5:05 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
37h 15m1 stop Taipei City Taiwan Taoyuan Intl
$888STARLUX Airlines
Sat, Sep 19 - Fri, Oct 2
STARLUX Airlines Logo
11:30 pm - 4:40 pmONT  Ontario-BKK Bangkok Suvarnabhumi
27h 10m1 stop Taipei City Taiwan Taoyuan Intl
STARLUX Airlines Logo
1:10 pm - 5:05 pmBKK  Bangkok Suvarnabhumi-ONT Ontario
17h 55m1 stop Taipei City Taiwan Taoyuan Intl
$1,048STARLUX 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 from Ontario to Bangkok Suvarnabhumi Airport with more confidence.

How much is a round-trip flight from Ontario to Bangkok Suvarnabhumi Airport?

Round-trip flights from Ontario to Bangkok Suvarnabhumi Airport start at $803. Prices are typical for this route right now, with typical round-trip fares ranging from $769 to $1,073. The lowest price found in the past 5 days was $803 on Korean Air.

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

Monday is the cheapest day of the week to fly from Ontario to Bangkok Suvarnabhumi Airport, it is 9% cheaper than the average day. Friday is the most expensive day with flight prices 18% higher than average. Based on deals found by KAYAK users in the last 12 months.

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 $764 round-trip.
  • June ($1,539) and December ($1,494) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 101% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices 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 12% 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 Suvarnabhumi Airport flights

Low season

August

Cheapest flight

$385
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly with an average 74% increase in price.
Flight from Ontario to Bangkok Suvarnabhumi Airport

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 Suvarnabhumi Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

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

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

    Prices vary by airline.

  • 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. Other layover airports each see under 5%.

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

    Yes. Being flexible with your travel dates can save you up to 24% on the Ontario to Bangkok Suvarnabhumi Airport route. Monday is the cheapest departure day at $783 round-trip on average, while Friday is the most expensive at $1,022, a difference of $239. 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 popular places can I visit in Bangkok Suvarnabhumi Airport?

    Some of the most popular sights in Bangkok Suvarnabhumi Airport are Pratunam, Terminal 21 and Phrom Phong BTS Skytrain Station. These are among the most viewed places in Bangkok Suvarnabhumi Airport on KAYAK.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 3% above the route average of $859. Book 15 weeks before departure for the lowest fares.

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

    A nonstop flight from Ontario to Bangkok Suvarnabhumi Airport takes 0h 00m, covering 8,280 miles.

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

    One-way fares from Ontario to Bangkok Suvarnabhumi Airport are currently in line with typical prices for this route. Average one-way fares are about $459.

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

    Bangkok Suvarnabhumi Airport (BKK) hosts 5 major car rental companies, with daily rates starting from around $13 for economy cars. Top options include:
    · Drive Car Rental
    · Alamo
    · Sixt
    · Yesaway
    · Hertz

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

    Round-trip flights from Ontario to Bangkok Suvarnabhumi Airport range from $769 to $1,073, with an average of $859 over the past 12 months. Anything below $769 counts as a good deal.

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 can be flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average $783 - about $239 less than Friday (23% 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 12% 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 $764 round-trip in that month - typically $775 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
    - Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)
    - Suvarnabhumi Ville Airport Hotel

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