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$584+ Cheap flights from Ontario (ONT) to Belgrade (BEG)

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BEG
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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Cheap flight deals from Ontario to Belgrade

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Belgrade (BEG). 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 16, 2025.

Round-trip from

$590
(United Airlines)

One-way from

$584
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$776
From Ontario to Belgrade Nikola Tesla
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One-way flight from Ontario to Belgrade Nikola Tesla
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Highest demand for flights based on searches. 19% potential increase in price ($211 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($23 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 Belgrade

Cheapest flights from Ontario to Belgrade
Explore the most affordable flight options available from Ontario to Belgrade. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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. 10/297:00 amONT - BEG
2 stops22h 45mMultiple Airlines
mié. 11/51:50 pmBEG - ONT
2 stops18h 01mMultiple Airlines
Deal found 9/14$590
This United Airlines deal was found by Cheapflights users on 9/14. 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.
lun. 11/37:00 amONT - BEG
2 stops20h 50mUnited Airlines
lun. 11/171:50 pmBEG - ONT
2 stops18h 01mUnited Airlines
Deal found 9/14$646
This United Airlines deal was found by Cheapflights users on 9/14. 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. 10/296:38 pmONT - BEG
3 stops34h 12mUnited Airlines
mié. 11/51:50 pmBEG - ONT
2 stops18h 01mUnited Airlines
Deal found 9/14$658
This United Airlines deal was found by Cheapflights users on 9/16. 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.
sáb. 11/87:00 amONT - BEG
2 stops20h 55mUnited Airlines
sáb. 11/226:25 amBEG - ONT
2 stops20h 09mUnited Airlines
Deal found 9/16$696
This United Airlines deal was found by Cheapflights users on 9/15. 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.
vie. 10/247:02 amONT - BEG
2 stops20h 53mUnited Airlines
mié. 10/296:15 amBEG - ONT
2 stops22h 29mUnited Airlines
Deal found 9/15$701
This United Airlines deal was found by Cheapflights users on 9/14. 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. 10/151:53 pmONT - BEG
2 stops37h 47mUnited Airlines
mié. 10/296:15 amBEG - ONT
2 stops22h 29mUnited Airlines
Deal found 9/14$707
This United Airlines deal was found by Cheapflights users on 9/14. 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.
dom. 10/55:05 amONT - BEG
2 stops23h 05mUnited Airlines
dom. 10/196:10 amBEG - ONT
2 stops22h 25mUnited Airlines
Deal found 9/14$766
This United deal was found by Cheapflights users on 9/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/61:53 pmONT - BEG
2 stops37h 42mMultiple Airlines
lun. 10/206:10 amBEG - ONT
2 stops20h 30mMultiple Airlines
Deal found 9/15$805
This United Airlines deal was found by Cheapflights users on 9/15. 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.
dom. 12/146:00 amONT - BEG
2 stops21h 50mUnited Airlines
dom. 12/281:50 pmBEG - ONT
2 stops41h 35mUnited Airlines
Deal found 9/15$836
This United Airlines deal was found by Cheapflights users on 9/15. 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. 9/246:00 amONT - BEG
2 stops22h 10mUnited Airlines
dom. 9/286:10 amBEG - ONT
2 stops20h 13mUnited Airlines
Deal found 9/15$866
This Mytrip deal was found by Cheapflights users on 9/16. 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.
mié. 11/512:46 pmONT - BEG
2 stops19h 14mMultiple Airlines
mié. 11/1910:20 amBEG - ONT
2 stops21h 09mMultiple Airlines
Deal found 9/16$900

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Belgrade 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 16, 2025.
Use the filters below to find and compare flights from Ontario to Belgrade that are best for you.

Fly from

Ontario

Fly to

Belgrade

Route

Depart

Return

Price

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

mié. 10/29

7:00 am-1:45 pm

2 stops22h 45m

Belgrade Nikola Tesla

mié. 11/5

1:50 pm-10:51 pm

2 stops18h 01m

$590

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

mié. 2/11

6:00 am-12:50 pm

2 stops21h 50m

Belgrade Nikola Tesla

mié. 2/25

1:50 pm-10:57 pm

2 stops18h 07m

$597

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

vie. 11/7

7:00 am-12:55 pm

2 stops20h 55m

Belgrade Nikola Tesla

vie. 11/21

1:50 pm-10:51 pm

2 stops18h 01m

$646

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

lun. 11/3

7:00 am-12:50 pm

2 stops20h 50m

Belgrade Nikola Tesla

lun. 11/17

1:50 pm-10:51 pm

2 stops18h 01m

$646

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

jue. 11/6

5:05 am-12:50 pm

2 stops22h 45m

Belgrade Nikola Tesla

jue. 11/20

1:50 pm-10:51 pm

2 stops18h 01m

$646

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

jue. 2/12

6:00 am-12:50 pm

2 stops21h 50m

Belgrade Nikola Tesla

jue. 2/26

1:50 pm-10:57 pm

2 stops18h 07m

$647

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

vie. 1/16

6:00 am-12:55 pm

2 stops21h 55m

Belgrade Nikola Tesla

vie. 1/30

1:50 pm-10:53 pm

2 stops18h 03m

$647

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

lun. 1/12

5:05 am-12:50 pm

2 stops22h 45m

Belgrade Nikola Tesla

lun. 1/26

1:50 pm-10:53 pm

2 stops18h 03m

$647

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

dom. 2/15

5:40 am-12:50 pm

2 stops22h 10m

Belgrade Nikola Tesla

dom. 3/1

1:50 pm-10:57 pm

2 stops18h 07m

$647

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

lun. 2/16

6:00 am-12:50 pm

2 stops21h 50m

Belgrade Nikola Tesla

lun. 3/2

6:15 am-6:00 pm

2 stops20h 45m

$648

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 15 results
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Best time to book a flight from Ontario to Belgrade

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

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Belgrade (average of $688). Flying from Ontario to Belgrade in June is currently the most expensive (average of $1,173). 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 Belgrade. 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 Belgrade?

    A quick flight from Ontario to Belgrade can take about 21h 50m. United Airlines provides one of the quickest options available for as low as $597. The distance from Ontario to Belgrade is about 6378 mi.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Belgrade (average of $688). Flying from Ontario to Belgrade in June is currently the most expensive (average of $1,173). 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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