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$612+ Cheap flights from Ontario (ONT) to Serbia

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BEG
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Ontario to Serbia

Keep the following information in mind while searching for Ontario to Serbia flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$846
(United Airlines)

One-way from

$612
(Air Serbia)

Popular in

June

Cheapest in

February

Average price

$669
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From Ontario to Serbia
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One-way flight from Ontario to Serbia
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Highest demand for flights based on searches. 23% potential increase in price ($271 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Ontario to Serbia

Cheapest flights from Ontario to Serbia
Explore the most affordable flight options available from Ontario to Serbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/28. 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 5/206:00 amONT - BEG
2 stops21h 35mUnited Airlines
Tue 6/36:10 amBEG - ONT
2 stops20h 29mUnited Airlines
Deal found 3/28$846
This Air Serbia deal was found by Cheapflights users on 3/27. 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 5/1810:59 pmONT - BEG
1 stop20h 41mAir Serbia
Wed 7/97:50 amBEG - ONT
1 stop23h 40mAir Serbia
Deal found 3/27$1,105
This British Airways deal was found by Cheapflights users on 3/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2312:49 pmONT - BEG
2 stops19h 21mMultiple Airlines
Tue 10/710:30 amBEG - ONT
2 stops22h 32mMultiple Airlines
Deal found 3/27$1,179

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Serbia 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 March 28, 2025.
Use the filters below to find and compare flights from Ontario to Serbia that are best for you.

Fly from

Ontario

Fly to

Serbia

Route

Depart

Return

Price

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 5/20

6:00 am-12:35 pm

2 stops21h 35m

Belgrade Nikola Tesla

Tue 6/3

6:10 am-5:39 pm

2 stops20h 29m

$846

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 5/18

10:59 pm-4:40 am

1 stop20h 41m

Belgrade Nikola Tesla

Wed 7/9

7:50 am-10:30 pm

1 stop23h 40m

$1,105

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 9/23

12:49 pm-5:10 pm

2 stops19h 21m

Belgrade Nikola Tesla

Tue 10/7

10:30 am-12:02 am

2 stops22h 32m

$1,179

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 5/12

10:59 pm-4:40 am

1 stop20h 41m

$612

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 5/13

6:00 am-4:25 pm

2 stops25h 25m

$630

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 5/11

6:00 am-1:10 pm

2 stops22h 10m

$631

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 6/1

10:59 pm-4:40 am

1 stop20h 41m

$855

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Best time to book a flight from Ontario to Serbia

Have a flexible travel schedule? Discover the best time to fly to Serbia 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 Serbia

What is the cheapest month to book a flight from Ontario to Serbia?

Currently, January is the cheapest month in which you can book a flight from Ontario to Serbia (average of $688). Flying from Ontario to Serbia in June is currently the most expensive (average of $1,191). 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 Serbia by month

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

In terms of precipitation, rainfall in Serbia 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 Serbia when rainfall is around 1.6 in.

Temperature in Serbia by month

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

If weather is an important factor for your trip to Serbia, 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 Serbia

Get insights into the airlines that provide service to Serbia. 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 Serbia. Reviews last updated March 28, 2025.
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,603 reviews
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.3
Good
2,923 reviews
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Serbia
6.3
Okay
194 reviews
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Ontario to Serbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Serbia?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Serbia.

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

    $612 is the cheapest one-way deal found within the past few days, from Air Serbia. You may also be able to find cheap deals on United Airlines and JetBlue, with prices starting from $631 and $855, respectively.

  • Can I find deals for flights from Ontario to Serbia that include hotel bookings?

    Yes. In addition to deals on Ontario to Serbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Serbia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Serbia.

  • Can I find deals for business class flights from Ontario to Serbia?

    Yes. Cheapflights offers flight deals from Ontario to Serbia 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 Serbia?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Serbia (average of $688). Flying from Ontario to Serbia in June is currently the most expensive (average of $1,191). 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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