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Ontario to Bangkok flights in February 2027 from $383 ONT → BKK

Ontario International Airport (ONT) → Suvarnabhumi Airport (BKK)

For departures in February 2027, the cheapest return found recently is $807 with Korean Air, 24 Feb 2027 – 11 Mar 2027, found 16 hours ago. The cheapest one-way found recently is $383 with Korean Air, 10 Feb 2027, found 4 days ago.

Return

In February 2027, the cheapest return fare on each of 8 departure dates is usually $805 to $826. Across all 34 departure dates we hold on this route, it is usually $817 to $1,289. Of the 5 months with enough return fares to compare, February 2027 is usually the cheapest.

Cheapest return found recently

$807

24 Feb 2027 – 11 Mar 2027 · Korean Air

Ontario International Airport (ONT) → Suvarnabhumi Airport (BKK)

out 2 stops, back 1 stop

found 16 hours ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$754

10 Feb 2027 – 21 Feb 2027 · Korean Air

Ontario International Airport (ONT) → Suvarnabhumi Airport (BKK)

out 2 stops, back 1 stop

found 4 days ago

See prices for these datesCheck today's price

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The cheapest dates in February 2027

DatesFromAirlineStopsFound
10 Feb 2027 – 21 Feb 2027$754Korean Airout 2 stops, back 1 stopfound 4 days agoSee prices for these dates
1 Feb 2027 – 19 Feb 2027$800Korean Airout 2 stops, back 1 stopfound 5 days agoSee prices for these dates
24 Feb 2027 – 11 Mar 2027$807Korean Airout 2 stops, back 1 stopfound 16 hours agoSee prices for these dates
23 Feb 2027 – 10 Mar 2027$809Korean Airout 2 stops, back 1 stopfound todaySee prices for these dates
17 Feb 2027 – 25 Feb 2027$812Korean Airout 2 stops, back 1 stopfound 6 days agoSee prices for these dates

Every date we hold

8 departure dates

1 Feb 2027 – 19 Feb 2027: $800, found 5 days ago2 Feb 2027 – 23 Feb 2027: $822, found 4 days ago5 Feb 2027 – 23 Feb 2027: $862, found today10 Feb 2027 – 21 Feb 2027: $754, found 4 days ago17 Feb 2027 – 25 Feb 2027: $812, found 6 days ago23 Feb 2027 – 10 Mar 2027: $809, found today24 Feb 2027 – 11 Mar 2027: $807, found 16 hours ago28 Feb 2027 – 14 Mar 2027: $836, found 4 days agoFeb
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Feb 2027 – 19 Feb 2027$800Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)out 2 stops, back 1 stopfound 5 days agoSee prices for these dates
2 Feb 2027 – 23 Feb 2027$822Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)out 2 stops, back 1 stopfound 4 days agoSee prices for these dates
5 Feb 2027 – 23 Feb 2027$862Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)out 2 stops, back 1 stopfound todaySee prices for these dates
10 Feb 2027 – 21 Feb 2027$754Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)out 2 stops, back 1 stopfound 4 days agoSee prices for these dates
17 Feb 2027 – 25 Feb 2027$812Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)out 2 stops, back 1 stopfound 6 days agoSee prices for these dates
23 Feb 2027 – 10 Mar 2027$809Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)out 2 stops, back 1 stopfound todaySee prices for these dates
24 Feb 2027 – 11 Mar 2027$807Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)out 2 stops, back 1 stopfound 16 hours agoSee prices for these dates
28 Feb 2027 – 14 Mar 2027$836Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)out 2 stops, back 1 stopfound 4 days agoSee prices for these dates

Which month looks cheapest?

February 2027 is the cheapest month — from $754.

November 2026From $9164 departure dates27 Nov – 4 Dec · found yesterdaySee prices for these dates
December 2026From $81112 departure dates4 Dec – 14 Dec · found 2 days agoSee prices for these datesEvery date in December 2026
January 2027From $8125 departure dates31 Jan 2027 – 24 Feb 2027 · found 5 days agoSee prices for these dates
February 2027From $754Cheapest seen8 departure dates10 Feb 2027 – 21 Feb 2027 · found 4 days agoSee prices for these dates
March 2027From $8123 departure dates14 Mar 2027 – 22 Mar 2027 · found 6 days agoSee prices for these dates
April 2027From $9511 departure date4 Apr 2027 – 15 Apr 2027 · found 4 days agoSee prices for these dates
July 2027From $1,1201 departure date15 Jul 2027 – 29 Jul 2027 · found 4 days agoSee prices for these dates

One-way

We hold one-way fares on only 2 departure dates in February 2027, too few to say what one usually costs.

Cheapest one-way found recently

$383

10 Feb 2027 · Korean Air

Ontario International Airport (ONT) → Suvarnabhumi Airport (BKK)

2 stops

found 4 days ago

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

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The cheapest dates in February 2027

DatesFromAirlineStopsFound
10 Feb 2027$383Korean Air2 stopsfound 4 days agoOpen this trip
6 Feb 2027$414Korean Air2 stopsfound 5 days agoOpen this trip

Every date we hold

2 departure dates

6 Feb 2027: $414, found 5 days ago10 Feb 2027: $383, found 4 days agoFeb
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
6 Feb 2027$414Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)2 stopsfound 5 days agoOpen this trip
10 Feb 2027$383Korean AirOntario International Airport (ONT) → Suvarnabhumi Airport (BKK)2 stopsfound 4 days agoOpen this trip

Which month looks cheapest?

February 2027 is the cheapest month — from $383.

January 2027From $4142 departure dates16 Jan 2027 · found 5 days agoOpen this trip
February 2027From $383Cheapest seen2 departure dates10 Feb 2027 · found 4 days agoOpen this trip
March 2027From $4392 departure dates4 Mar 2027 · found 3 days agoOpen this trip
July 2027From $6601 departure date9 Jul 2027 · found 2 days agoOpen this trip
September 2027From $4671 departure date1 Sept 2027 · found 3 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work