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$612+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BEG
May 17 — May 241
Sun 5/17
Sun 5/24
1 adult, Economy
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Cheap 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 April 17, 2026.

This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:50 pm
ONT
-
BEG
2 stops30h 20m
Turkish Airlines
Mon 10/58:25 pm
BEG
-
ONT
2 stops32h 48m
Turkish Airlines
Deal found 4/14$1,044
This Air Serbia deal was found by Cheapflights users on 4/14. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/810:41 pm
ONT
-
BEG
1 stop20h 59m
Air Serbia
Mon 8/107:55 am
BEG
-
ONT
1 stop23h 40m
Air Serbia
Deal found 4/14$1,046
This Air Serbia deal was found by Cheapflights users on 4/15. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:41 pm
ONT
-
BEG
1 stop20h 59m
Air Serbia
Wed 6/247:55 am
BEG
-
ONT
1 stop23h 43m
Air Serbia
Deal found 4/15$1,054
This Air Serbia deal was found by Cheapflights users on 4/17. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:41 pm
ONT
-
BEG
1 stop20h 59m
Air Serbia
Wed 7/87:55 am
BEG
-
ONT
1 stop23h 40m
Air Serbia
Deal found 4/17$1,079
This Air Serbia deal was found by Cheapflights users on 4/14. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:41 pm
ONT
-
BEG
1 stop20h 59m
Air Serbia
Mon 8/107:55 am
BEG
-
ONT
1 stop23h 40m
Air Serbia
Deal found 4/14$1,080
This Air Serbia deal was found by Cheapflights users on 4/16. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:50 pm
ONT
-
BEG
1 stop19h 50m
Air Serbia
Fri 7/311:30 pm
BEG
-
ONT
1 stop18h 05m
Air Serbia
Deal found 4/16$1,081
This Air Serbia deal was found by Cheapflights users on 4/15. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:41 pm
ONT
-
BEG
1 stop20h 59m
Air Serbia
Wed 6/247:55 am
BEG
-
ONT
1 stop23h 43m
Air Serbia
Deal found 4/15$1,088
This Air Serbia deal was found by Cheapflights users on 4/13. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:50 pm
ONT
-
BEG
1 stop19h 50m
Air Serbia
Thu 8/61:30 pm
BEG
-
ONT
1 stop18h 05m
Air Serbia
Deal found 4/13$1,089
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Mon 8/106:30 am
ONT
-
BEG
2 stops21h 25m
United Airlines
Mon 8/244:55 pm
BEG
-
ONT
2 stops36h 57m
United Airlines
Deal found 4/13$1,100
This Air Serbia deal was found by Cheapflights users on 4/17. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:41 pm
ONT
-
BEG
1 stop20h 59m
Air Serbia
Tue 7/77:55 am
BEG
-
ONT
1 stop23h 40m
Air Serbia
Deal found 4/17$1,112
This Air Serbia deal was found by Cheapflights users on 4/13. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:50 pm
ONT
-
BEG
1 stop19h 50m
Air Serbia
Mon 8/37:55 am
BEG
-
ONT
1 stop23h 40m
Air Serbia
Deal found 4/13$1,113
This Air Serbia deal was found by Cheapflights users on 4/17. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/511:53 pm
ONT
-
BEG
1 stop19h 47m
Air Serbia
Wed 8/127:55 am
BEG
-
ONT
1 stop23h 40m
Air Serbia
Deal found 4/17$1,114

Find 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 April 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,044
(FlightHub)

One-way from

$612
(Air Serbia)

Popular in

June

Cheapest in

January

Average price

$760
Provider with most accurate pricing for Los Angeles Los Angeles-Belgrade Nikola Tesla flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Belgrade Nikola Tesla flights.
Search Deals
From Ontario to Belgrade Nikola Tesla
Search Deals
One-way flight from Ontario to Belgrade Nikola Tesla
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 17, 2026.
Use the filters below to find and compare flights from Ontario to Belgrade that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Wed 8/12

5:00 am-12:45 pm

2 stops22h 45m

Belgrade Nikola Tesla

Wed 8/26

1:40 pm-10:58 pm

2 stops18h 18m

$1,079

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 8/10

6:30 am-12:55 pm

2 stops21h 25m

Belgrade Nikola Tesla

Mon 8/24

4:55 pm-8:52 pm

2 stops36h 57m

$1,100

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 7/5

11:53 pm-4:40 am

1 stop19h 47m

Belgrade Nikola Tesla

Tue 8/4

7:55 am-10:35 pm

1 stop23h 40m

$1,113

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 7/7

11:50 pm-4:40 am

1 stop19h 50m

Belgrade Nikola Tesla

Mon 8/3

7:55 am-10:35 pm

1 stop23h 40m

$1,113

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 7/7

11:50 pm-4:40 am

1 stop19h 50m

Belgrade Nikola Tesla

Sun 8/9

1:30 pm-10:35 pm

1 stop18h 05m

$1,231
Quickest round-trip

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Fri 9/11

1:18 pm-3:45 pm

2 stops17h 27m

Belgrade Nikola Tesla

Fri 9/25

1:20 pm-11:06 pm

2 stops18h 46m

$1,260

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 7/6

11:50 pm-4:40 am

1 stop19h 50m

Belgrade Nikola Tesla

Wed 8/5

7:55 am-10:35 pm

1 stop23h 40m

$1,471

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 7/5

11:53 pm-4:40 am

1 stop19h 47m

Belgrade Nikola Tesla

Wed 8/5

7:55 am-10:35 pm

1 stop23h 40m

$1,505

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Wed 7/15

1:18 pm-4:05 pm

2 stops17h 47m

Belgrade Nikola Tesla

Wed 7/29

6:10 am-8:42 pm

2 stops23h 32m

$1,559

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Fri 5/15

5:00 am-12:25 pm

2 stops22h 25m

Belgrade Nikola Tesla

Fri 5/29

5:50 am-8:42 pm

2 stops23h 52m

$1,614

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 24 resultsSorted by cheapest first
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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.

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 19h 47m. United Airlines provides one of the quickest options available for as low as $1,113. The distance from Ontario to Belgrade is about 6378 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

See more FAQs

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