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$452+ Cheap flights from Ontario (ONT) to Java

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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CGK
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Ontario to Java

Keep the following information in mind while searching for Ontario to Java flight deals. Data was last updated June 12, 2025.

Round-trip from

$793
(Orbitz)

One-way from

$452
(oojo)

Popular in

June

Cheapest in

September

Average price

$1,291
From Ontario to Java
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One-way flight from Ontario to Java
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Highest demand for flights based on searches. 13% potential increase in price ($156 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Ontario to Java

Cheapest flights from Ontario to Java
Explore the most affordable flight options available from Ontario to Java. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Orbitz deal was found by Cheapflights users on 6/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:00 amONT - CGK
2 stops48h 10mKorean Air
Sun 9/149:50 pmCGK - ONT
2 stops33h 27mKorean Air
Deal found 6/11$793
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:10 pmONT - CGK
1 stop22h 05mSTARLUX Airlines
Wed 10/112:15 pmCGK - ONT
1 stop18h 50mSTARLUX Airlines
Deal found 6/11$881
This oojo deal was found by Cheapflights users on 6/11. 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 8/3112:45 amONT - CGK
1 stop22h 50mChina Airlines
Sun 9/282:40 pmCGK - ONT
1 stop41h 20mChina Airlines
Deal found 6/11$889
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amONT - CGK
2 stops48h 10mDelta
Mon 9/89:50 pmCGK - ONT
2 stops38h 52mDelta
Deal found 6/11$896
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:50 pmONT - CGK
2 stops28h 45mUnited Airlines
Mon 9/296:10 amCGK - ONT
2 stops25h 30mUnited Airlines
Deal found 6/11$1,004
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1012:45 amONT - CGK
2 stops32h 45mMultiple Airlines
Wed 9/1712:55 amCGK - ONT
2 stops31h 05mMultiple Airlines
Deal found 6/12$1,057
This oojo deal was found by Cheapflights users on 6/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:00 amONT - CGK
2 stops35h 30mQatar Airways
Wed 9/1712:55 amCGK - ONT
2 stops37h 04mQatar Airways
Deal found 6/12$1,145
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Mon 8/2512:45 amONT - SUB
2 stops27h 00mChina Airlines
Mon 9/157:00 pmSUB - ONT
2 stops61h 00mChina Airlines
Deal found 6/12$1,234
This oojo deal was found by Cheapflights users on 6/10. 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 10/1912:10 amONT - SUB
2 stops27h 35mMultiple Airlines
Mon 11/177:05 amSUB - ONT
2 stops24h 45mMultiple Airlines
Deal found 6/10$1,323
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/131:19 pmONT - SUB
2 stops60h 21mUnited Airlines
Thu 8/710:10 amSUB - ONT
2 stops45h 33mUnited Airlines
Deal found 6/12$3,101

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Java 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 June 12, 2025.
Use the filters below to find and compare flights from Ontario to Java that are best for you.

Fly from

Ontario

Fly to

Java

Route

Depart

Return

Price

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Wed 9/3

6:00 am-8:10 pm

2 stops48h 10m

Jakarta Soekarno-Hatta Intl

Sun 9/14

9:50 pm-5:17 pm

2 stops33h 27m

$793

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Wed 9/3

11:10 pm-11:15 am

1 stop22h 05m

Jakarta Soekarno-Hatta Intl

Wed 10/1

12:15 pm-5:05 pm

1 stop18h 50m

$881

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Sun 8/31

12:45 am-1:35 pm

1 stop22h 50m

Jakarta Soekarno-Hatta Intl

Sun 9/28

2:40 pm-6:00 pm

1 stop41h 20m

$889

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Thu 9/4

6:00 am-8:10 pm

2 stops48h 10m

Jakarta Soekarno-Hatta Intl

Mon 9/8

9:50 pm-10:42 pm

2 stops38h 52m

$896

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Thu 9/11

6:50 pm-1:35 pm

2 stops28h 45m

Jakarta Soekarno-Hatta Intl

Mon 9/29

6:10 am-5:40 pm

2 stops25h 30m

$1,004

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Wed 9/10

12:45 am-11:30 pm

2 stops32h 45m

Jakarta Soekarno-Hatta Intl

Wed 9/17

12:55 am-6:00 pm

2 stops31h 05m

$1,057

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Thu 9/11

6:00 am-7:30 am

2 stops35h 30m

Jakarta Soekarno-Hatta Intl

Wed 9/17

12:55 am-11:59 pm

2 stops37h 04m

$1,145

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Mon 8/25

12:45 am-5:45 pm

2 stops27h 00m

Surabaya Juanda

Mon 9/15

7:00 pm-6:00 pm

2 stops61h 00m

$1,234

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Sun 10/19

12:10 am-5:45 pm

2 stops27h 35m

Surabaya Juanda

Mon 11/17

7:05 am-4:50 pm

2 stops24h 45m

$1,323

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Sun 7/13

1:19 pm-3:40 pm

2 stops60h 21m

Surabaya Juanda

Thu 8/7

10:10 am-5:43 pm

2 stops45h 33m

$3,101

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 20 results
1
2

Best time to book a flight from Ontario to Java

Have a flexible travel schedule? Discover the best time to fly to Java 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 Java

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Java (average of $920). Flying from Ontario to Java in June is currently the most expensive (average of $1,411). 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.

What is the cheapest time of day to fly from ONT to FXH?

Find hourly flight availability from Ontario to Java. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Ontario to Java, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Java by month

Plan your trip to Java by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Java ranges from 7.0 - 15.1 inches per month. April is typically the wettest month, when rainfall can reach 15.1 in. July is typically the driest time to visit Java when rainfall is around 7.0 in.

Temperature in Java by month

Plan your trip to Java by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Java, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 75.2 F).

Reviews of airlines servicing Java

Get insights into the airlines that provide service to Java. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Java. Reviews last updated June 12, 2025.
To help decide which airline to fly from Ontario to Java, see what other customers have to say about STARLUX Airlines, EVA Air and Korean Air. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
178 reviews

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Overall

9.1

Food

8.8

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
178 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Overall

9.1

Food

8.8

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,202 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Overall

9.1

Food

8.8

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,088 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Overall

9.1

Food

8.8

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,490 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Overall

9.1

Food

8.8

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
738 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Overall

9.1

Food

8.8

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Java. 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 Java?

    If you book a flight to Java 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.

  • What are the cheapest airlines to fly from Ontario to Java one-way?

    One-way options have recently been found by users for as low as $452 on Japan Airlines. Other airlines that offer cheap prices include STARLUX Airlines from $499 and China Airlines from $519 one-way.

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

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

  • How can I find direct flights from Ontario to Java?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Java 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 Java?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Java (average of $920). Flying from Ontario to Java in June is currently the most expensive (average of $1,411). 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

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Top 3 airlines flying from Ontario to Java

Discover the top 3 airlines that operate flights from Ontario to Java. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
STARLUX AirlinesCheapest$705Average$1,066FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$933Average$1,034FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$1,015Average$1,029FlexibilityNo cancel feeOn-time69%

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