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$998+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SUB
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$998
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$859
From Ontario to Surabaya Juanda
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Highest demand for flights based on searches. 7% potential increase in price ($91 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. 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.
mar. 10/216:36 pmONT - SUB
2 stops31h 04mUnited Airlines
mié. 11/196:40 pmSUB - ONT
2 stops32h 57mUnited Airlines
Deal found 9/11$998
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/112:10 amONT - SUB
2 stops29h 00mChina Airlines
lun. 10/67:05 amSUB - ONT
2 stops48h 55mChina Airlines
Deal found 9/11$1,256
This China Airlines deal was found by Cheapflights users on 9/10. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/1412:10 amONT - SUB
2 stops27h 35mChina Airlines
dom. 10/196:30 pmSUB - ONT
2 stops61h 30mChina Airlines
Deal found 9/10$1,304
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2012:10 amONT - SUB
2 stops29h 00mMultiple Airlines
mié. 11/197:05 amSUB - ONT
2 stops24h 45mMultiple Airlines
Deal found 9/11$1,331
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/1610:50 pmONT - SUB
2 stops32h 00mMultiple Airlines
sáb. 11/228:15 amSUB - ONT
2 stops23h 35mMultiple Airlines
Deal found 9/10$1,410
This Justfly.com deal was found by Cheapflights users on 9/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1012:10 amONT - SUB
2 stops27h 35mChina Airlines
sáb. 10/186:30 pmSUB - ONT
2 stops61h 30mChina Airlines
Deal found 9/11$1,429
This Justfly.com deal was found by Cheapflights users on 9/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/3111:50 pmONT - SUB
2 stops29h 20mChina Airlines
sáb. 11/87:05 amSUB - ONT
2 stops24h 45mChina Airlines
Deal found 9/10$1,532
This China Airlines deal was found by Cheapflights users on 9/11. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/1610:50 pmONT - SUB
2 stops30h 20mMultiple Airlines
mié. 12/107:05 amSUB - ONT
2 stops24h 45mMultiple Airlines
Deal found 9/11$1,592
This China Airlines deal was found by Cheapflights users on 9/11. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/2710:50 pmONT - SUB
2 stops29h 20mMultiple Airlines
vie. 1/167:05 amSUB - ONT
2 stops24h 45mMultiple Airlines
Deal found 9/11$1,607
This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1012:10 amONT - SUB
2 stops29h 35mMultiple Airlines
sáb. 10/185:40 pmSUB - ONT
3 stops38h 20mMultiple Airlines
Deal found 9/11$1,627
This United Airlines deal was found by Cheapflights users on 9/9. 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.
mié. 10/159:36 amONT - SUB
2 stops42h 39mUnited Airlines
dom. 10/1910:10 amSUB - ONT
2 stops40h 03mUnited Airlines
Deal found 9/9$2,454
This oojo deal was found by Cheapflights users on 9/11. 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.
mié. 12/2410:50 pmONT - SUB
2 stops29h 20mMultiple Airlines
mié. 1/287:05 amSUB - ONT
2 stops24h 45mMultiple Airlines
Deal found 9/11$2,887

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 septiembre 11, 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

mar. 10/21

6:36 pm-3:40 pm

2 stops31h 04m

Surabaya Juanda

mié. 11/19

6:40 pm-12:37 pm

2 stops32h 57m

$998

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

mié. 10/1

12:10 am-7:10 pm

2 stops29h 00m

Surabaya Juanda

lun. 10/6

7:05 am-6:00 pm

2 stops48h 55m

$1,256

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

mar. 9/30

12:10 am-8:25 am

2 stops42h 15m

Surabaya Juanda

sáb. 10/18

7:05 am-6:00 pm

2 stops48h 55m

$1,256

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

mar. 10/14

12:10 am-5:45 pm

2 stops27h 35m

Surabaya Juanda

dom. 10/19

6:30 pm-6:00 pm

2 stops37h 30m

$1,304

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

lun. 10/20

12:10 am-7:10 pm

2 stops29h 00m

Surabaya Juanda

mié. 11/19

7:05 am-4:50 pm

2 stops24h 45m

$1,331

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

dom. 11/16

10:50 pm-9:50 pm

2 stops32h 00m

Surabaya Juanda

sáb. 11/22

8:15 am-4:50 pm

2 stops23h 35m

$1,410

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

vie. 10/10

12:10 am-5:45 pm

2 stops27h 35m

Surabaya Juanda

sáb. 10/18

6:30 pm-6:00 pm

2 stops61h 30m

$1,429

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

dom. 11/16

10:50 pm-8:10 pm

2 stops30h 20m

Surabaya Juanda

mié. 12/10

7:05 am-4:50 pm

2 stops24h 45m

$1,592

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

sáb. 12/27

10:50 pm-7:10 pm

2 stops29h 20m

Surabaya Juanda

vie. 1/16

7:05 am-4:50 pm

2 stops24h 45m

$1,607

OntarioSurabaya

ONT - SUB

ONTSUB

Ontario

vie. 10/10

12:10 am-7:45 pm

2 stops29h 35m

Surabaya Juanda

sáb. 10/18

5:40 pm-6:00 pm

3 stops38h 20m

$1,627

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 12 results
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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, November is the cheapest month in which you can book a flight from Ontario to Surabaya (average of $772). Flying from Ontario to Surabaya in December is currently the most expensive (average of $1,697). 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 United Airlines and China Airlines fly from Ontario to Surabaya in about 29h. The time it takes to get you to your destination can typically vary by up to 2h 04m. There are 8739 mi between Ontario and Surabaya. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, November is the cheapest month in which you can book a flight from Ontario to Surabaya (average of $772). Flying from Ontario to Surabaya in December is currently the most expensive (average of $1,697). 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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