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$1,138+ Cheap flights from Ontario (ONT) to Surabaya (SUB)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SUB
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Ontario to Surabaya

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Surabaya (SUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,251
(oojo)

Popular in

December

Cheapest in

August

Average price

$876
Provider with most accurate pricing for Ontario-Surabaya Juanda flight deals.
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Provider most trusted by Cheapflights users for Ontario-Surabaya Juanda flights.
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From Ontario to Surabaya Juanda
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Highest demand for flights based on searches. 7% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Ontario to Surabaya

Cheapest flights from Ontario to Surabaya
Explore the most affordable flight options available from Ontario to Surabaya. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This China Airlines deal was found by Cheapflights users on 10/27. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:50 pmONT - SUB
2 stops44h 35mChina Airlines
Sun 11/97:05 amSUB - ONT
2 stops48h 45mChina Airlines
Deal found 10/27$1,276
This oojo deal was found by Cheapflights users on 10/27. 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.
Wed 12/2410:50 pmONT - SUB
2 stops27h 50mMultiple Airlines
Sat 1/317:05 amSUB - ONT
2 stops24h 45mMultiple Airlines
Deal found 10/27$1,736

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Surabaya 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 October 28, 2025.
Use the filters below to find and compare flights from Ontario to Surabaya that are best for you.

Fly from

Ontario

Fly to

Surabaya

Route

Depart

Return

Price

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Sun 3/29

12:10 am-5:45 pm

2 stops27h 35m

Surabaya Juanda

Thu 4/30

8:05 pm-6:00 pm

2 stops35h 55m

$1,138

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Thu 11/27

10:50 pm-10:25 am

2 stops44h 35m

Surabaya Juanda

Thu 12/4

7:05 am-4:50 pm

2 stops48h 45m

$1,207

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Tue 1/27

10:50 pm-7:10 pm

2 stops29h 20m

Surabaya Juanda

Sat 3/7

7:05 am-4:50 pm

2 stops24h 45m

$1,251

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Wed 12/24

10:50 pm-7:10 pm

2 stops29h 20m

Surabaya Juanda

Fri 1/30

7:05 am-4:50 pm

2 stops24h 45m

$1,724

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Wed 12/24

10:50 pm-5:40 pm

2 stops27h 50m

Surabaya Juanda

Sat 1/31

7:05 am-4:50 pm

2 stops24h 45m

$1,736

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Tue 12/23

10:50 pm-5:40 pm

2 stops27h 50m

Surabaya Juanda

Fri 1/30

7:05 am-4:50 pm

2 stops24h 45m

$1,736

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

Wed 12/24

10:50 pm-8:10 pm

2 stops30h 20m

Surabaya Juanda

Fri 1/30

7:05 am-4:50 pm

2 stops24h 45m

$2,930

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

  • Most accurate provider: When it comes to deals on Ontario-Surabaya flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Surabaya flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Surabaya flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Surabaya flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Surabaya flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Surabaya

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

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Surabaya (average of $734). Flying from Ontario to Surabaya in June is currently the most expensive (average of $1,157). 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 Surabaya. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Surabaya?

    Airlines like China Airlines fly from Ontario to Surabaya in about 27h 35m. The time it takes to get you to your destination can typically vary by up to . There are 8739 mi between Ontario and Surabaya.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to Surabaya (average of $734). Flying from Ontario to Surabaya in June is currently the most expensive (average of $1,157). 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.

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