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Cheap Flights from Ontario International to Bangkok Suvarnabhumi

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      Travellers and cabin class, 1 Adult, Economy

      Compare Ontario International to Bangkok Suvarnabhumi flight deals

      Find the cheapest month or even day of the year to fly to Bangkok Suvarnabhumi

      Book the best Bangkok Suvarnabhumi fare with no extra fees

      Flight deals from Ontario International to Bangkok Suvarnabhumi

      Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Bangkok Suvarnabhumi Airport? If you want to travel next month, return fares start from R 12,415. Find the lowest prices on one-way and return tickets right here.
      Bangkok.R 6,160 per passenger.Departing Thu, 26 Nov.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Thu, 26 Nov, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,160, select.
      Bangkok.R 6,182 per passenger.Departing Wed, 9 Sep.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Wed, 9 Sep, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,182, select.
      Bangkok.R 6,306 per passenger.Departing Tue, 1 Dec.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Tue, 1 Dec, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,306, select.
      Bangkok.R 6,395 per passenger.Departing Fri, 30 Oct.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Fri, 30 Oct, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,395, select.
      Bangkok.R 6,469 per passenger.Departing Tue, 5 Jan.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Tue, 5 Jan, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,469, select.
      Bangkok.R 6,693 per passenger.Departing Mon, 1 Feb.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Mon, 1 Feb, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,693, select.
      Bangkok.R 6,795 per passenger.Departing Sat, 3 Apr.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Sat, 3 Apr, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,795, select.
      Bangkok.R 6,816 per passenger.Departing Fri, 19 Mar.One-way flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Ontario International on Fri, 19 Mar, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 6,816, select.
      Bangkok.R 7,497 per passenger.Departing Sat, 8 May.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Sat, 8 May, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 7,497, select.
      Bangkok.R 8,008 per passenger.Departing Sun, 8 Aug.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Sun, 8 Aug, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 8,008, select.
      Bangkok.R 9,900 per passenger.Departing Tue, 1 Jun.One-way flight with Korean Air.Outbound indirect flight with Korean Air, departs from Ontario International on Tue, 1 Jun, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 9,900, select.
      Bangkok.R 10,172 per passenger.Departing Tue, 20 Jul.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Ontario International on Tue, 20 Jul, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From R 10,172, select.

      Find the cheapest month to fly from Ontario International to Bangkok Suvarnabhumi

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Bangkok Suvarnabhumi flights are currently cheapest in November.
      Sep
      from R 6,182
      Oct
      from R 6,395
      Nov
      from R 6,160
      Dec
      from R 6,306
      Jan
      from R 6,469
      Feb
      from R 6,693
      Mar
      from R 6,816
      Apr
      from R 6,795
      May
      from R 7,497
      Jun
      from R 9,900
      Jul
      from R 10,172
      Aug
      from R 8,008

      Ontario International to Bangkok Suvarnabhumi: Alternative routes

      Compare routes from Ontario International to Bangkok below. You may find an airport to fly into that's cheaper, faster, or easier than Bangkok Suvarnabhumi.

      Don Mueang

      21km from central Bangkok
      Closest
      from R 7,814
      Search flights

      Bangkok Suvarnabhumi

      29km from central Bangkok
      Cheapest
      from R 6,160
      Search flights

      Ontario to Bangkok: Flight information

      The things to know before you go.
      Cheapest flight foundR 6,160
      Cheapest month to flyNovember

      Finding cheap flights from Ontario International to Bangkok Suvarnabhumi: Frequently asked questions

      The best price we found for a return flight from Ontario International to Bangkok Suvarnabhumi is R 11,749. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Ontario International to Bangkok Suvarnabhumi. But we found flights with one or more stops from R 11,749.
      As of September 2026, there are no flights flying from Ontario International to Bangkok Suvarnabhumi.
      The cheapest month to fly from Ontario International to Bangkok Suvarnabhumi is usually January.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Bangkok Suvarnabhumi Airport on Tuesday, 19 January 2027.
      No airlines currently offer direct flights between Ontario International Airport and Bangkok Suvarnabhumi Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bangkok Suvarnabhumi but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bangkok is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, STARLUX Airlines offers the cheapest flight tickets to Bangkok Suvarnabhumi.

      Flying from Ontario International Airport (ONT) to Bangkok Suvarnabhumi Airport (BKK): what you need to know

      • Bangkok's timezone is UTC+7, making Bangkok 15 hours ahead of Ontario.

      • To ensure you catch your ONT to BKK flight, allow plenty of time to check in and drop off your luggage. Arriving two hours before international departures and an hour before domestic flights is the general rule.

      • During popular months like July, it's best to get to the airport earlier than normal. Plan to arrive two hours before a domestic departure and four hours ahead of international flights when you fly during a peak period in general.

      • Explore another city along the way or simply break up your flight with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Ontario International Airport to Bangkok Suvarnabhumi Airport. Many travellers pass through Taipei Taiwan Taoyuan Airport when flying between ONT and BKK.

      How to find the cheapest flights from Ontario International Airport (ONT) to Bangkok Suvarnabhumi Airport (BKK)

      • At the moment, R 6,160 is the cheapest price we've found for a one-way Ontario International Airport to Bangkok Suvarnabhumi Airport flight. The best price for a return ticket is R 11,749. Remember that fares may change due to availability when booking.

      • Don't wait until the last moment. You're more likely to get cheap tickets from ONT to BKK if you book ahead. Airlines often offer some great early bird deals.

      • Finding cheap flights from Ontario International Airport to Bangkok Suvarnabhumi Airport is easier if you can be flexible with your travel plans. Use the 'Whole month' function to see the lowest prices across each month and score a great deal.

      • There's no need to check every day to see if fares have gone down when you set up a Price Alert. We'll update you as soon as there's a change in price on cheap flights from ONT to BKK.

      • Pick your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Ontario International Airport to Bangkok Suvarnabhumi Airport.

      Handy information about Ontario International Airport (ONT)

      • The address for ONT is 2900 E. Airport Drive.

      • 83% of flights departing from Ontario International Airport arrive at their destination as planned. Given its strong on-time stats, delays are unlikely when taking off from ONT.

      • To reach Ontario International Airport from central Ontario, it'll take about 15 minutes by car. This depends on traffic though. It's approximately 10 kilometres from the airport to the city centre.

      • The journey when using public transport usually takes 45 minutes.

      • Searching for a convenient hotel close to ONT? If you're catching an early flight from Ontario International Airport to Bangkok Suvarnabhumi Airport, these stays will have you sleeping moments from check-in:

      Arriving at Bangkok Suvarnabhumi Airport (BKK)

      • If you're landing on a late Ontario International Airport to Bangkok Suvarnabhumi Airport flight, nothing beats the convenience of being near the terminal. Collect your bags from the carousel and then be showered and resting not long after at one of these options near BKK:

      • Go wherever you want, whenever you want with a Bangkok Suvarnabhumi Airport rental car. Pick up a set of wheels from Chic Car Rent, asap car rental or Hertz and find adventure across Bangkok and beyond.

      • Booking your vehicle from Bangkok Suvarnabhumi Airport about four weeks ahead boosts your odds of scoring a great price.

      Getting from Bangkok Suvarnabhumi Airport (BKK) to central Bangkok

      • Bangkok Suvarnabhumi Airport is approximately 31 kilometres from central Bangkok. The drive time takes about 35 minutes.

      • It'll take around 35 minutes if you're travelling by public transport.

      When to fly to Bangkok Suvarnabhumi Airport (BKK)

      • It's time to choose your travel dates for your flight from Ontario International Airport to Bangkok Suvarnabhumi Airport. January is the most popular month to head to Bangkok. If you prefer a quieter vibe, go in March.

      • The warmest month in Bangkok is April, with temperatures ranging between 26ºC (79ºF) and 37ºC (99ºF). Book your flights from Ontario International Airport to Bangkok Suvarnabhumi Airport in this month if this is the type of weather you like.

      • January has average temperatures of between 19ºC (66ºF) and 34ºC (93ºF). Look for cheap tickets from ONT to BKK sometime around then if you like cooler conditions.

      Plan the rest of your trip from Ontario to Bangkok

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.