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Belgrade

$438+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BEG
Feb 21 — Feb 281
Sat 2/21
Sat 2/28
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 January 22, 2026.

This United Airlines deal was found by Cheapflights users on 1/20. 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.
Mon 3/3011:05 am
ONT
-
BEG
2 stops16h 50m
United Airlines
Wed 4/156:10 am
BEG
-
ONT
2 stops23h 26m
United Airlines
Deal found 1/20$553
This United Airlines deal was found by Cheapflights users on 1/20. 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 3/51:50 pm
ONT
-
BEG
2 stops25h 00m
United Airlines
Mon 3/96:15 am
BEG
-
ONT
2 stops22h 35m
United Airlines
Deal found 1/20$583
This United Airlines deal was found by Cheapflights users on 1/22. 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.
Fri 4/175:10 am
ONT
-
BEG
2 stops25h 35m
United Airlines
Fri 4/245:50 am
BEG
-
ONT
2 stops25h 36m
United Airlines
Deal found 1/22$605
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 3/35:00 am
ONT
-
BEG
2 stops33h 50m
United Airlines
Fri 5/151:20 pm
BEG
-
ONT
2 stops18h 39m
United Airlines
Deal found 1/20$638
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Wed 3/111:40 pm
ONT
-
BEG
2 stops26h 10m
United Airlines
Tue 6/162:00 pm
BEG
-
ONT
2 stops18h 06m
United Airlines
Deal found 1/21$639
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:15 am
ONT
-
BEG
2 stops32h 35m
United Airlines
Tue 6/166:20 am
BEG
-
ONT
2 stops20h 27m
United Airlines
Deal found 1/19$654
This United Airlines deal was found by Cheapflights users on 1/20. 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 4/91:34 pm
ONT
-
BEG
2 stops17h 11m
United Airlines
Thu 4/166:10 am
BEG
-
ONT
2 stops23h 26m
United Airlines
Deal found 1/20$693
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 3/111:40 pm
ONT
-
BEG
2 stops26h 10m
United Airlines
Mon 6/156:10 am
BEG
-
ONT
2 stops20h 37m
United Airlines
Deal found 1/20$698

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 January 22, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$553
(United Airlines)

One-way from

$438
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$724
Provider with most accurate pricing for Los Angeles-Belgrade Nikola Tesla flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Belgrade Nikola Tesla flights.
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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. 22% potential increase in price ($239 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 22, 2026.
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

Mon 3/30

11:05 am-12:55 pm

2 stops16h 50m

Belgrade Nikola Tesla

Wed 4/15

6:10 am-8:36 pm

2 stops23h 26m

$553

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 4/27

11:05 am-4:10 pm

2 stops20h 05m

Belgrade Nikola Tesla

Wed 5/13

1:40 pm-10:59 pm

2 stops18h 19m

$553

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 4/26

11:05 am-4:10 pm

2 stops20h 05m

Belgrade Nikola Tesla

Wed 5/13

1:40 pm-10:59 pm

2 stops18h 19m

$553

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 4/5

11:05 am-12:45 pm

2 stops16h 40m

Belgrade Nikola Tesla

Thu 4/16

6:10 am-10:26 pm

2 stops25h 16m

$553

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 4/28

11:05 am-4:05 pm

2 stops20h 00m

Belgrade Nikola Tesla

Wed 5/13

1:40 pm-10:59 pm

2 stops18h 19m

$553

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 4/5

11:05 am-12:45 pm

2 stops16h 40m

Belgrade Nikola Tesla

Wed 4/15

6:10 am-8:36 pm

2 stops23h 26m

$553

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 3/30

11:05 am-12:55 pm

2 stops16h 50m

Belgrade Nikola Tesla

Tue 4/14

6:20 am-6:02 pm

2 stops20h 42m

$553

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Thu 3/5

1:50 pm-11:50 pm

2 stops25h 00m

Belgrade Nikola Tesla

Mon 3/9

6:15 am-8:50 pm

2 stops22h 35m

$583

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 5/10

10:37 am-4:10 pm

2 stops20h 33m

$438

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sat 2/21

1:53 pm-12:50 pm

2 stops37h 57m

$460

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 12 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, December is the cheapest month in which you can book a flight from Ontario to Belgrade (average of $484). Flying from Ontario to Belgrade in June is currently the most expensive (average of $884). 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 16h 50m. United Airlines provides one of the quickest options available for as low as $553. 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, December is the cheapest month in which you can book a flight from Ontario to Belgrade (average of $484). Flying from Ontario to Belgrade in June is currently the most expensive (average of $884). 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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