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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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BEG
Feb 12 — Feb 191
Thu 2/12
Thu 2/19
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 January 13, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$554
(United Airlines)

One-way from

$438
(Delta)

Popular in

June

Cheapest in

February

Average price

$724
Provider with most accurate pricing for Ontario-Belgrade Nikola Tesla flight deals.
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Provider most trusted by Cheapflights users for Ontario-Belgrade Nikola Tesla flights.
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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. 22% potential increase in price ($238 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 13, 2026.

This United Airlines deal was found by Cheapflights users on 1/11. 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.
Tue 3/31:45 pm
ONT
-
BEG
2 stops25h 05m
United Airlines
Tue 3/176:10 am
BEG
-
ONT
2 stops19h 31m
United Airlines
Deal found 1/11$554
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Wed 4/155:10 am
ONT
-
BEG
2 stops33h 25m
United Airlines
Wed 4/296:10 am
BEG
-
ONT
2 stops49h 16m
United Airlines
Deal found 1/11$560
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Thu 2/126:00 am
ONT
-
BEG
2 stops21h 50m
United Airlines
Thu 2/266:25 am
BEG
-
ONT
2 stops23h 25m
United Airlines
Deal found 1/11$569
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Fri 3/611:59 pm
ONT
-
BEG
2 stops27h 56m
United Airlines
Fri 3/206:15 am
BEG
-
ONT
2 stops38h 03m
United Airlines
Deal found 1/11$574
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Thu 3/55:15 am
ONT
-
BEG
2 stops33h 35m
United Airlines
Mon 3/96:15 am
BEG
-
ONT
2 stops24h 42m
United Airlines
Deal found 1/11$584
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Sun 4/125:10 am
ONT
-
BEG
2 stops22h 35m
United Airlines
Sun 4/265:50 am
BEG
-
ONT
2 stops23h 46m
United Airlines
Deal found 1/11$604
This United Airlines deal was found by Cheapflights users on 1/12. 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.
Sun 8/236:00 am
ONT
-
BEG
2 stops21h 45m
United Airlines
Sun 8/305:50 am
BEG
-
ONT
2 stops20h 57m
United Airlines
Deal found 1/12$699
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Tue 5/127:00 am
ONT
-
BEG
2 stops20h 25m
United Airlines
Tue 5/266:20 am
BEG
-
ONT
2 stops19h 58m
United Airlines
Deal found 1/11$729
This Delta deal was found by Cheapflights users on 1/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2211:59 am
ONT
-
BEG
2 stops27h 26m
Delta
Tue 3/316:00 am
BEG
-
ONT
2 stops19h 28m
Delta
Deal found 1/10$739
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Fri 4/105:10 am
ONT
-
BEG
2 stops22h 15m
United Airlines
Sun 5/35:50 am
BEG
-
ONT
2 stops24h 11m
United Airlines
Deal found 1/11$744
This United Airlines deal was found by Cheapflights users on 1/12. 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 2/135:00 am
ONT
-
BEG
2 stops22h 55m
United Airlines
Fri 2/271:50 pm
BEG
-
ONT
2 stops31h 57m
United Airlines
Deal found 1/12$775

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 13, 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

Tue 3/3

1:45 pm-11:50 pm

2 stops25h 05m

Belgrade Nikola Tesla

Tue 3/17

6:10 am-5:41 pm

2 stops19h 31m

$554

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Wed 4/15

5:10 am-11:35 pm

2 stops33h 25m

Belgrade Nikola Tesla

Wed 4/29

6:10 am-10:26 pm

2 stops49h 16m

$560

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Thu 2/12

6:00 am-12:50 pm

2 stops21h 50m

Belgrade Nikola Tesla

Thu 2/26

6:25 am-8:50 pm

2 stops23h 25m

$569

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Fri 2/27

5:00 am-12:55 pm

2 stops22h 55m

Belgrade Nikola Tesla

Fri 3/6

6:15 am-10:18 pm

2 stops25h 03m

$569

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-10:57 pm

2 stops24h 42m

$584

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 5/12

7:00 am-12:25 pm

2 stops20h 25m

Belgrade Nikola Tesla

Tue 5/26

6:20 am-5:18 pm

2 stops19h 58m

$729

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 3/22

11:59 am-11:25 pm

2 stops27h 26m

Belgrade Nikola Tesla

Tue 3/31

6:00 am-4:28 pm

2 stops19h 28m

$739

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Fri 4/10

5:10 am-12:25 pm

2 stops22h 15m

Belgrade Nikola Tesla

Sun 5/3

5:50 am-9:01 pm

2 stops24h 11m

$744

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 3/23

1:50 pm-11:50 pm

2 stops26h 00m

$438

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 3/22

1:20 pm-11:25 pm

2 stops26h 05m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/10

Showing 1-10 of 18 results
1
2
  • Most accurate provider: When it comes to deals on Ontario-Belgrade flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Belgrade flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Belgrade flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Belgrade 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-Belgrade 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 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 25h 05m. United Airlines provides one of the quickest options available for as low as $554. 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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