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Belgrade

$458+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BEG
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 February 11, 2026.

This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:00 am
ONT
-
BEG
2 stops20h 55m
Delta
Fri 4/176:15 am
BEG
-
ONT
2 stops23h 45m
Delta
Deal found 2/9$563
This United Airlines deal was found by Cheapflights users on 2/8. 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 3/301:34 pm
ONT
-
BEG
2 stops17h 36m
United Airlines
Wed 4/156:10 am
BEG
-
ONT
2 stops23h 26m
United Airlines
Deal found 2/8$585
This United Airlines deal was found by Cheapflights users on 2/7. 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 3/301:34 pm
ONT
-
BEG
2 stops17h 36m
United Airlines
Mon 4/136:10 am
BEG
-
ONT
2 stops23h 26m
United Airlines
Deal found 2/7$635
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/21:34 pm
ONT
-
BEG
2 stops41h 11m
United Airlines
Thu 4/166:10 am
BEG
-
ONT
2 stops25h 16m
United Airlines
Deal found 2/10$642
This United Airlines deal was found by Cheapflights users on 2/8. 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 stops24h 03m
United Airlines
Deal found 2/8$785
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/41:50 pm
ONT
-
BEG
2 stops25h 00m
United Airlines
Wed 3/186:15 am
BEG
-
ONT
2 stops19h 26m
United Airlines
Deal found 2/10$786
This United Airlines deal was found by Cheapflights users on 2/8. 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 4/311:05 am
ONT
-
BEG
2 stops19h 40m
United Airlines
Fri 4/175:50 am
BEG
-
ONT
2 stops23h 46m
United Airlines
Deal found 2/8$805
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 3/1211:59 pm
ONT
-
BEG
2 stops28h 56m
United Airlines
Thu 3/196:25 am
BEG
-
ONT
2 stops19h 16m
United Airlines
Deal found 2/9$870
This United Airlines deal was found by Cheapflights users on 2/7. 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 2/7$901
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:37 pm
ONT
-
BEG
2 stops45h 13m
United Airlines
Sat 3/286:25 am
BEG
-
ONT
2 stops25h 34m
United Airlines
Deal found 2/10$936
This United Airlines deal was found by Cheapflights users on 2/8. 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 5/1010:37 am
ONT
-
BEG
2 stops20h 33m
United Airlines
Sun 5/245:50 am
BEG
-
ONT
2 stops20h 28m
United Airlines
Deal found 2/8$961

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$563
(Delta)

One-way from

$458
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$654
Provider with most accurate pricing for Los Angeles-Belgrade Nikola Tesla flight deals.
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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. 23% potential increase in price ($246 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 11, 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 3/31

6:00 am-11:55 am

2 stops20h 55m

Belgrade Nikola Tesla

Wed 4/15

12:35 pm-11:44 pm

2 stops20h 09m

$563

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 3/31

6:00 am-11:55 am

2 stops20h 55m

Belgrade Nikola Tesla

Fri 4/17

6:15 am-9:00 pm

2 stops23h 45m

$563

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 3/30

11:05 am-4:10 pm

2 stops20h 05m

Belgrade Nikola Tesla

Wed 4/15

6:10 am-5:47 pm

2 stops20h 37m

$585

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 3/31

11:05 am-4:05 pm

2 stops20h 00m

Belgrade Nikola Tesla

Tue 4/14

6:20 am-8:36 pm

2 stops23h 16m

$585

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 3/31

11:05 am-4:05 pm

2 stops20h 00m

Belgrade Nikola Tesla

Sat 4/11

6:10 am-10:26 pm

2 stops25h 16m

$635

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 3/30

1:34 pm-4:10 pm

2 stops17h 36m

Belgrade Nikola Tesla

Mon 4/13

6:10 am-8:36 pm

2 stops23h 26m

$635

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Thu 4/2

1:34 pm-3:45 pm

2 stops41h 11m

Belgrade Nikola Tesla

Thu 4/16

6:10 am-10:26 pm

2 stops25h 16m

$642

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Wed 3/4

1:50 pm-11:50 pm

2 stops25h 00m

Belgrade Nikola Tesla

Wed 3/11

6:15 am-5:41 pm

2 stops19h 26m

$785

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-10:18 pm

2 stops24h 03m

$785

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 4/6

6:00 am-4:10 pm

2 stops25h 10m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 18 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 $955). 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 20h 05m. Delta provides one of the quickest options available for as low as $585. 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.

  • 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 $955). 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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