HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ko Phi Phi

$363+ Cheap flights from Ontario (ONT) to Ko Phi Phi, Thailand

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HKT
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Ko Phi Phi with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Ko Phi Phi

Cheapest flights from Ontario to Ko Phi Phi
Explore the most affordable flight options available from Ontario to Ko Phi Phi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This Korean Air deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amONT - HKT
2 stops25h 10mKorean Air
Thu 1/811:40 pmHKT - ONT
2 stops29h 16mKorean Air
Deal found 12/12$1,658
This Korean Air deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amONT - HKT
2 stops25h 10mKorean Air
Wed 1/711:40 pmHKT - ONT
2 stops38h 11mKorean Air
Deal found 12/12$1,718
This Trip.com deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1610:50 pmONT - HKT
2 stops28h 00mMultiple Airlines
Fri 12/267:50 amHKT - ONT
2 stops48h 00mMultiple Airlines
Deal found 12/12$1,726
This Korean Air deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:40 amONT - HKT
2 stops24h 30mKorean Air
Sun 12/2111:40 pmHKT - ONT
2 stops32h 28mKorean Air
Deal found 12/12$1,809
This Korean Air deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:38 amONT - HKT
2 stops24h 32mKorean Air
Thu 1/811:40 pmHKT - ONT
2 stops29h 16mKorean Air
Deal found 12/12$1,919
This Korean Air deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amONT - HKT
2 stops25h 10mKorean Air
Mon 1/511:40 pmHKT - ONT
2 stops29h 16mKorean Air
Deal found 12/12$1,968
This Korean Air deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:38 amONT - HKT
2 stops24h 32mKorean Air
Wed 1/711:40 pmHKT - ONT
2 stops38h 11mKorean Air
Deal found 12/12$1,979
This FlightHub deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:50 pmONT - HKT
2 stops29h 15mMultiple Airlines
Fri 12/197:45 amHKT - ONT
2 stops24h 05mMultiple Airlines
Deal found 12/12$2,108
This oojo deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:50 pmONT - HKT
2 stops31h 20mMultiple Airlines
Sat 12/207:45 amHKT - ONT
2 stops24h 05mMultiple Airlines
Deal found 12/11$2,186
This Korean Air deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:38 amONT - HKT
2 stops24h 32mKorean Air
Mon 1/511:40 pmHKT - ONT
2 stops29h 16mKorean Air
Deal found 12/12$2,229
This Korean Air deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:38 amONT - HKT
2 stops24h 32mMultiple Airlines
Sat 1/3111:40 pmHKT - ONT
2 stops29h 16mMultiple Airlines
Deal found 12/12$2,279
This Delta deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:38 amONT - HKT
2 stops24h 32mDelta
Wed 12/3111:40 pmHKT - ONT
2 stops32h 28mDelta
Deal found 12/12$2,349

Find flight deals from Ontario to Ko Phi Phi

Keep the following information in mind while searching for Ontario to Ko Phi Phi flight deals. Data was last updated December 14, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$709
(Delta)

One-way from

$363
(Delta)

Popular in

December

Cheapest in

September

Average price

$1,430
Provider with most accurate pricing for Los Angeles-Phuket City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Phuket City flights.
Search Deals
From Ontario to Ko Phi Phi
Search Deals
One-way flight from Ontario to Ko Phi Phi
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Ko Phi Phi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 14, 2025.
Use the filters below to find and compare flights from Ontario to Ko Phi Phi that are best for you.

Fly from

Ontario

Fly to

Ko Phi Phi

Route

Depart

Return

Price

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Mon 3/16

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Wed 3/25

11:40 pm-10:34 pm

2 stops36h 54m

$709

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Tue 3/17

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Wed 3/25

11:40 pm-5:13 pm

2 stops31h 33m

$714

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Tue 3/17

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Tue 3/24

11:40 pm-5:13 pm

2 stops31h 33m

$714

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Mon 3/16

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Mon 3/23

11:40 pm-10:34 pm

2 stops36h 54m

$714

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Mon 3/9

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Mon 3/23

11:40 pm-5:13 pm

2 stops31h 33m

$714

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Sun 3/15

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Tue 3/24

11:40 pm-5:13 pm

2 stops31h 33m

$719

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Sun 3/15

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Sun 3/22

11:40 pm-5:13 pm

2 stops31h 33m

$719

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Thu 5/7

7:00 am-10:10 pm

2 stops25h 10m

Phuket City

Sun 5/17

11:25 pm-5:16 pm

2 stops31h 51m

$723

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Sun 3/15

1:20 pm-10:10 pm

2 stops42h 50m

Phuket City

Thu 3/26

11:40 pm-11:54 pm

2 stops38h 14m

$800

OntarioPhuket City

ONT - HKT

ONTHKT

Ontario

Wed 3/18

6:00 am-10:10 pm

2 stops26h 10m

Phuket City

Wed 3/25

11:40 pm-10:34 pm

2 stops36h 54m

$844

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Ontario to Ko Phi Phi

Have a flexible travel schedule? Discover the best time to fly to Ko Phi Phi from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Ko Phi Phi

What is the cheapest month to book a flight from Ontario to Ko Phi Phi?

Currently, April is the cheapest month in which you can book a flight from Ontario to Ko Phi Phi (average of $644). Flying from Ontario to Ko Phi Phi in June is currently the most expensive (average of $906). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Ko Phi Phi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Ko Phi Phi?

    If you book a flight to Ko Phi Phi from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to Ko Phi Phi per day from 0 different airlines.

  • How long is the flight from Ontario to Ko Phi Phi?

    There are many flights that can get you from Ontario to Ko Phi Phi in 26h 10m. Fly via Delta or Korean Air to get the fastest option. Ontario and Ko Phi Phi are separated by a distance of 8688 mi.

  • Can I find deals for flights from Ontario to Ko Phi Phi that include hotel bookings?

    Yes. In addition to deals on Ontario to Ko Phi Phi flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Ko Phi Phi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Ko Phi Phi.

  • Can I find deals for business class flights from Ontario to Ko Phi Phi?

    Yes. Cheapflights offers flight deals from Ontario to Ko Phi Phi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Ko Phi Phi?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Ko Phi Phi (average of $644). Flying from Ontario to Ko Phi Phi in June is currently the most expensive (average of $906). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Ko Phi Phi

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Suvarnabhumi flights
San Francisco to Suvarnabhumi flights
Ontario to Suvarnabhumi flights
Los Angeles to Don Mueang Intl flights
Santa Ana to Suvarnabhumi flights
Las Vegas to Suvarnabhumi flights
Burbank to Suvarnabhumi flights
San Francisco to Don Mueang Intl flights
San Jose to Suvarnabhumi flights
San Diego to Suvarnabhumi flights
Oakland to Suvarnabhumi flights
Los Angeles to Phuket City flights
San Francisco to Phuket City flights
Sacramento to Suvarnabhumi flights
Reno to Suvarnabhumi flights
Ontario to Phuket City flights
Las Vegas to Don Mueang Intl flights
Long Beach to Suvarnabhumi flights
Los Angeles to Chiang Mai flights
Las Vegas to Phuket City flights
San Jose to Phuket City flights
Santa Ana to Phuket City flights
Palm Springs to Suvarnabhumi flights
Fresno to Suvarnabhumi flights
San Francisco to Ko Samui flights
San Francisco to Chiang Mai flights
Medford to Suvarnabhumi flights
Oakland to Phuket City flights
Burbank to Phuket City flights
Los Angeles to Ko Samui flights
San Diego to Phuket City flights
San Francisco to Krabi flights
Las Vegas to Chiang Mai flights
Los Angeles to Krabi flights
Ontario to Chiang Mai flights
Oakland to Chiang Mai flights
San Diego to Don Mueang Intl flights
Santa Rosa to Suvarnabhumi flights
Long Beach to Phuket City flights
Sacramento to Phuket City flights
Santa Rosa to Phuket City flights
Las Vegas to Ko Samui flights
San Francisco to Rayong flights
Oakland to Krabi flights
San Jose to Chiang Mai flights
Arcata to Suvarnabhumi flights
San Diego to Chiang Mai flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.