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$681+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BEG
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Find cheap flights from Ontario to Belgrade with Cheapflights

1. Tell us where you want to go

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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 May 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$704
(United)

One-way from

$681
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$1,108
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. 20% potential increase in price ($227 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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 10/297:00 amONT - BEG
2 stops21h 55mUnited Airlines
Wed 11/126:20 amBEG - ONT
2 stops22h 57mUnited Airlines
Deal found 4/29$682
This United deal was found by Cheapflights users on 4/30. 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.
Mon 10/277:00 amONT - BEG
2 stops19h 25mMultiple Airlines
Mon 11/101:40 pmBEG - ONT
2 stops41h 55mMultiple Airlines
Deal found 4/30$704
This Air Serbia deal was found by Cheapflights users on 4/29. 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 5/1910:59 pmONT - BEG
1 stop20h 51mAir Serbia
Wed 6/47:50 amBEG - ONT
1 stop22h 21mAir Serbia
Deal found 4/29$1,008

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 May 1, 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

Mon 10/27

7:00 am-10:25 am

2 stops19h 25m

Belgrade Nikola Tesla

Mon 11/10

1:40 pm-10:35 pm

2 stops41h 55m

$704

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Wed 8/27

6:04 am-1:10 pm

2 stops22h 06m

Belgrade Nikola Tesla

Wed 9/10

6:10 am-5:37 pm

2 stops20h 27m

$767

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 5/19

10:59 pm-4:50 am

1 stop20h 51m

Belgrade Nikola Tesla

Wed 6/4

7:50 am-9:11 pm

1 stop22h 21m

$1,008

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Thu 7/3

1:19 pm-12:55 pm

2 stops38h 36m

$681

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 6/9

10:05 pm-10:55 pm

2 stops39h 50m

$852

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 6/10

10:55 pm-4:40 am

1 stop20h 45m

$1,042

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Thu 7/17

12:46 pm-5:10 pm

2 stops19h 24m

$3,363

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Compare providers for flights from Ontario to Belgrade

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Belgrade in May.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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, 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 $1,161). 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.

Rainfall in Belgrade by month

Plan your trip to Belgrade by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belgrade ranges from 1.6 - 4.0 inches per month. June is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Belgrade when rainfall is around 1.6 in.

Temperature in Belgrade by month

Plan your trip to Belgrade by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belgrade, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Belgrade

Get insights into the airlines that provide service to Belgrade. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belgrade. Reviews last updated May 1, 2025.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Serbia
6.3
Okay
196 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Ontario to Belgrade one-way?

    The cheapest airlines for a one-way flight from Ontario to Belgrade are United Airlines ($681), Delta ($852), and Air Serbia ($1,042).

  • 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 $1,161). 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.

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