HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Java

$492+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CGK
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Java 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 Java

Keep the following information in mind while searching for Ontario to Java flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$939
(oojo)

One-way from

$492
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$877
Provider with most accurate pricing for Los Angeles-Jakarta (JKT) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Jakarta (JKT) flights.
Search Deals
From Ontario to Java
Search Deals
One-way flight from Ontario to Java
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 February 20, 2025.

This oojo deal was found by Cheapflights users on 2/19. 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.
Mon 4/1412:10 amONT - CGK
1 stop23h 25mChina Airlines
Tue 4/221:30 amCGK - ONT
1 stop30h 30mChina Airlines
Deal found 2/19$939
This Delta deal was found by Cheapflights users on 2/20. 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.
Sun 4/205:45 amONT - CGK
2 stops48h 25mDelta
Thu 5/159:50 pmCGK - ONT
2 stops33h 24mDelta
Deal found 2/20$942
This KAYAK deal was found by Cheapflights users on 2/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/155:45 amONT - CGK
2 stops48h 25mKorean Air
Wed 4/239:50 pmCGK - ONT
2 stops32h 53mKorean Air
Deal found 2/19$1,082
This United Airlines deal was found by Cheapflights users on 2/20. 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 5/16:48 pmONT - CGK
2 stops28h 47mUnited Airlines
Wed 6/117:00 amCGK - ONT
2 stops43h 14mUnited Airlines
Deal found 2/20$1,094
This Korean Air deal was found by Cheapflights users on 2/18. 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.
Tue 4/155:45 amONT - CGK
2 stops48h 25mMultiple Airlines
Wed 4/239:50 pmCGK - ONT
2 stops32h 53mMultiple Airlines
Deal found 2/18$1,096
This Ovago deal was found by Cheapflights users on 2/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/111:45 pmONT - CGK
1 stop21h 30mSTARLUX Airlines
Fri 8/1512:15 pmCGK - ONT
1 stop19h 25mSTARLUX Airlines
Deal found 2/20$1,099
This Trip.com deal was found by Cheapflights users on 2/20. 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.
Thu 4/1012:10 amONT - SUB
2 stops44h 35mMultiple Airlines
Fri 5/95:00 amSUB - ONT
2 stops27h 00mMultiple Airlines
Deal found 2/20$1,342
This oojo deal was found by Cheapflights users on 2/18. 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.
Mon 4/76:00 amONT - CGK
2 stops43h 00mQatar Airways
Mon 4/216:35 pmCGK - ONT
2 stops39h 54mQatar Airways
Deal found 2/18$1,483
This Etihad Airways deal was found by Cheapflights users on 2/19. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:37 pmONT - CGK
2 stops43h 58mEtihad Airways
Wed 10/1512:45 amCGK - ONT
2 stops35h 37mEtihad Airways
Deal found 2/19$1,605
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Sat 5/3112:10 amONT - SUB
2 stops30h 20mChina Airlines
Sun 6/297:05 amSUB - ONT
2 stops24h 55mChina Airlines
Deal found 2/20$1,875

Find flights from Ontario to Java within your budget

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 February 20, 2025.

Fly from

Ontario

Fly to

Java

Route

Depart

Return

Price

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Mon 4/14

12:10 am-1:35 pm

1 stop23h 25m

Jakarta Soekarno-Hatta Intl

Tue 4/22

1:30 am-6:00 pm

1 stop30h 30m

$939

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Sun 4/20

5:45 am-8:10 pm

2 stops48h 25m

Jakarta Soekarno-Hatta Intl

Thu 5/15

9:50 pm-5:14 pm

2 stops33h 24m

$942

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Tue 4/15

5:45 am-8:10 pm

2 stops48h 25m

Jakarta Soekarno-Hatta Intl

Wed 4/23

9:50 pm-4:43 pm

2 stops32h 53m

$1,082

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Thu 5/1

6:48 pm-1:35 pm

2 stops28h 47m

Jakarta Soekarno-Hatta Intl

Wed 6/11

7:00 am-12:14 pm

2 stops43h 14m

$1,094

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Tue 4/15

5:45 am-8:10 pm

2 stops48h 25m

Jakarta Soekarno-Hatta Intl

Wed 4/23

9:50 pm-4:43 pm

2 stops32h 53m

$1,096

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Fri 8/1

11:45 pm-11:15 am

1 stop21h 30m

Jakarta Soekarno-Hatta Intl

Fri 8/15

12:15 pm-5:40 pm

1 stop19h 25m

$1,099

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Thu 4/10

12:10 am-10:45 am

2 stops44h 35m

Surabaya Juanda

Fri 5/9

5:00 am-6:00 pm

2 stops27h 00m

$1,342

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Mon 4/7

6:00 am-3:00 pm

2 stops43h 00m

Jakarta Soekarno-Hatta Intl

Mon 4/21

6:35 pm-8:29 pm

2 stops39h 54m

$1,483

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Sat 5/31

12:10 am-8:30 pm

2 stops30h 20m

Surabaya Juanda

Sun 6/29

7:05 am-6:00 pm

2 stops24h 55m

$1,875

OntarioJakarta

ONT - CGK

ONTCGK

Ontario

Mon 3/3

6:00 am-4:55 pm

2 stops43h 55m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

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.

Travel insights for flights from Ontario to Java

Get recent, data-driven insights about flights from Ontario to Java including ideal travel times, pricing trends, and more.

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 $1,488). 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 February 20, 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 February 20, 2025.
To help decide which airline to fly from Ontario to Java, see what other customers have to say about STARLUX Airlines, Korean Air and Japan Airlines. 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
140 reviews

Entertainment

9.1

Boarding

9.1

Food

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

STARLUX Airlines
9.1
Wonderful
140 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Food

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Korean Air
8.4
Very good
1,037 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Food

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Japan Airlines
8.3
Very good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Food

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

China Airlines
8.2
Very good
727 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Food

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Delta
8.0
Very good
8,220 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Food

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

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 $521 on Japan Airlines. Other airlines that offer cheap prices include China Airlines from $551 and Korean Air from $571 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 $1,488). 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 Java

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Denpasar flights
San Francisco to Denpasar flights
Los Angeles to Soekarno-Hatta Intl flights
Ontario to Denpasar flights
Santa Ana to Denpasar flights
San Francisco to Soekarno-Hatta Intl flights
San Jose to Denpasar flights
Ontario to Soekarno-Hatta Intl flights
Burbank to Denpasar flights
Las Vegas to Denpasar flights
Oakland to Denpasar flights
San Diego to Denpasar flights
San Jose to Soekarno-Hatta Intl flights
Oakland to Soekarno-Hatta Intl flights
Sacramento to Denpasar flights
Los Angeles to Surabaya flights
Las Vegas to Soekarno-Hatta Intl flights
San Diego to Soekarno-Hatta Intl flights
San Francisco to Surabaya flights
Los Angeles to Medan flights
Sacramento to Soekarno-Hatta Intl flights
Los Angeles to Padang flights
San Francisco to Manado flights
Ontario to Surabaya flights
San Francisco to Padang flights
San Jose to Surabaya flights
Santa Rosa to Denpasar flights
Fresno to Denpasar flights
Los Angeles to Manado flights
Long Beach to Denpasar flights
Los Angeles to Sorong flights
Medford to Denpasar flights
Los Angeles to Surakarta City flights
Reno to Denpasar flights
San Francisco to Balikpapan flights
San Francisco to Medan flights
San Francisco to Sorong flights
Los Angeles to Balikpapan flights
Los Angeles to Labuan Bajo flights
Los Angeles to Praya flights
Los Angeles to Semarang flights
Los Angeles to Makassar flights
San Diego to Medan flights

Top 2 airlines flying from Ontario to Java

Discover the top 2 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$926Average$1,036FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$1,029Average$1,029FlexibilityNo cancel feeOn-time69%
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.