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Cheap flights from Ontario to Bangkok Suvarnabhumi Airport from $418

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Bangkok Suvarnabhumi Airport departing on 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Bangkok

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Bangkok.
Delta Logo
7:00 am - 1:05 amONT-BKK
28h 05m2 stops
Delta Logo
2:35 am - 10:42 pmBKK-ONT
34h 07m2 stops
$777Delta
Find Deal
Mon, Sep 22 - Sun, Oct 19
Korean Air Logo
7:00 am - 9:45 pmONT-BKK
24h 45m2 stops
Korean Air Logo
11:30 pm - 5:17 pmBKK-ONT
31h 47m2 stops
$779Korean Air
Find Deal
Mon, Sep 22 - Mon, Oct 20
China Airlines Logo
12:10 am - 4:20 pmONT-BKK
26h 10m1 stop
China Airlines Logo
2:05 pm - 4:50 pmBKK-ONT
17h 45m1 stop
$787China Airlines
Find Deal
Mon, Oct 20 - Thu, Nov 20
United Airlines Logo
6:36 pm - 4:35 amONT-BKK
43h 59m2 stops
United Airlines Logo
9:35 am - 5:37 pmBKK-ONT
46h 02m2 stops
$802United Airlines
Find Deal
Mon, Sep 8 - Sun, Sep 21
China Airlines Logo
12:45 am - 12:10 pmONT-BKK
21h 25m1 stop
China Airlines Logo
10:50 am - 6:00 pmBKK-ONT
21h 10m1 stop
$803China Airlines
Find Deal
Tue, Sep 2 - Thu, Sep 18
United Airlines Logo
6:00 am - 11:55 pmONT-BKK
27h 55m2 stops
United Airlines Logo
9:35 am - 8:33 pmBKK-ONT
24h 58m2 stops
$805United Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 16
 Logo
6:00 am - 1:15 pmONT-BKK
41h 15m2 stops
 Logo
9:50 am - 6:20 pmBKK-ONT
22h 30m2 stops
Wed, May 7 - Tue, May 20
 Logo
6:00 am - 11:25 pmONT-BKK
27h 25m2 stops
 Logo
1:00 am - 1:18 pmBKK-ONT
27h 18m2 stops
Mon, Oct 13 - Mon, Nov 3
STARLUX Airlines Logo
11:45 pm - 12:00 pmONT-BKK
22h 15m1 stop
STARLUX Airlines Logo
5:50 pm - 5:05 pmBKK-ONT
37h 15m1 stop
$910STARLUX Airlines
Find Deal
Fri, Aug 1 - Tue, Sep 30
STARLUX Airlines Logo
11:10 pm - 4:40 pmONT-BKK
27h 30m1 stop
STARLUX Airlines Logo
1:10 pm - 5:05 pmBKK-ONT
17h 55m1 stop
$911STARLUX Airlines
Find Deal
Mon, Sep 1 - Fri, Oct 3

China Airlines flights from Ontario to Bangkok Suvarnabhumi Airport

Our best China Airlines deals on Ontario to Bangkok Suvarnabhumi Airport flight tickets
China Airlines
Oct 20
ONT12:10 amOntario
26h 10m
1 stop
BKK4:20 pmBangkok Suvarnabhumi
Nov 20
BKK2:05 pmBangkok Suvarnabhumi
17h 45m
1 stop
ONT4:50 pmOntario
China Airlines
Sep 2
ONT12:45 amOntario
21h 25m
1 stop
BKK12:10 pmBangkok Suvarnabhumi
Sep 18
BKK10:50 amBangkok Suvarnabhumi
21h 10m
1 stop
ONT6:00 pmOntario
China Airlines
Sep 2
ONT12:45 amOntario
19h 00m
1 stop
BKK9:45 amBangkok Suvarnabhumi
Sep 17
BKK2:40 amBangkok Suvarnabhumi
29h 20m
1 stop
ONT6:00 pmOntario

Korean Air flights from Ontario to Bangkok Suvarnabhumi Airport

Our best Korean Air deals on Ontario to Bangkok Suvarnabhumi Airport flight tickets
Korean Air
Sep 22
ONT7:00 amOntario
24h 45m
2 stops
BKK9:45 pmBangkok Suvarnabhumi
Oct 20
BKK11:30 pmBangkok Suvarnabhumi
31h 47m
2 stops
ONT5:17 pmOntario
Korean Air
Oct 21
ONT7:00 amOntario
24h 45m
2 stops
BKK9:45 pmBangkok Suvarnabhumi
Oct 28
BKK11:15 pmBangkok Suvarnabhumi
32h 02m
2 stops
ONT5:17 pmOntario
Korean Air
May 8
ONT6:00 amOntario
27h 40m
2 stops
BKK11:40 pmBangkok Suvarnabhumi
Sep 16
BKK11:30 pmBangkok Suvarnabhumi
31h 47m
2 stops
ONT5:17 pmOntario

See travel insights to Bangkok from

How to get the cheapest flight ticket from Ontario to Bangkok Suvarnabhumi Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The month of September is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Ontario, with most prices found around $868. The month of March is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Ontario averaging around $871.

What is the cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport?

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Tuesday when prices can be found for as low as $887. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,056.

What is the cheapest time of day to depart on your flight to Bangkok Suvarnabhumi Airport?

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is in the morning. Flights from Ontario to Bangkok Suvarnabhumi Airport during this time can be as low as $901. In the evening is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $970 per ticket.

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Ontario when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $1,057 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Ontario for as low as $884 on momondo.

How have Ontario to Bangkok Suvarnabhumi Airport flight prices changed over time?

As of April 2025, prices for Ontario to Bangkok Suvarnabhumi Airport flights are approximately 14% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Bangkok Suvarnabhumi Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Bangkok Suvarnabhumi Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Bangkok Suvarnabhumi Airport (ONT to BKK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Bangkok Suvarnabhumi Airport

Best Price Found

$418

Fastest flight time

19h 00m

Direct flights

None
The best one-way flight to Bangkok Suvarnabhumi Airport from Ontario in the past 72 hours is $418. The best round-trip flight deal from Ontario to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is $777.
The fastest flight from Ontario to Bangkok Suvarnabhumi Airport takes 19h 00m
There are no direct flights from Ontario to Bangkok Suvarnabhumi Airport. Popular non-direct route for this connection is Ontario Airport - Bangkok Suvarnabhumi Airport.

  • How far is Ontario to Bangkok Suvarnabhumi by plane?

    A flight from Ontario to Bangkok Suvarnabhumi will travel around 8277.1 mi. In terms of flight time, this usually takes a little over 19h 00m.

  • When did momondo last update prices for flights from Ontario Airport to Bangkok Suvarnabhumi Airport?

    Prices for flights from Ontario Airport to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario Airport to Bangkok Suvarnabhumi Airport?

  • How old do you have to be to fly from Ontario Airport to Bangkok Suvarnabhumi Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Bangkok Suvarnabhumi Airport.

  • What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

    The required travel and health documents for your Bangkok Suvarnabhumi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bangkok Suvarnabhumi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Ontario to Bangkok Suvarnabhumi Airport?


Best airlines flying from Ontario to Bangkok Suvarnabhumi Airport

Compare and see reviews for airlines that fly from Ontario to Bangkok Suvarnabhumi Airport with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $785Free CancellationRating
8.4
1,063 reviews
Search Korean Air flights
United AirlinesPriceFrom $795Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
DeltaPriceFrom $807Free CancellationRating
8.0
7,919 reviews
Search Delta flights
China AirlinesPriceFrom $826Free CancellationRating
8.3
727 reviews
Search China Airlines flights

Traveling to a place near Bangkok?

Book flights to Bangkok if you plan to visit one of these locations
Pattaya
Ko Samet
Kanchanaburi
Cha-am
Ayutthaya
Chonburi
Ko Lan
Sattahip
Pak Chong
Phetchaburi

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Bangkok?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Bangkok. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Bangkok with flexible booking policies on momondo?

All flight searches from Ontario to Bangkok on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Bangkok?

momondo helps you find the best flight between Ontario and Bangkok by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Bangkok right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bangkok, momondo offers a useful price alert feature which will track prices for flights to Bangkok from Ontario and alert you when they change.


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