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Ontario

$638+ Cheap flights from Serbia to Ontario (ONT)

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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
BEG — ONT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Serbia to Ontario

Keep the following information in mind while searching for Serbia to Ontario flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$852
(United Airlines)

One-way from

$638
(Air Serbia)

Popular in

August

Cheapest in

February

Average price

$865
Provider with most accurate pricing for Belgrade Nikola Tesla-Los Angeles flight deals.
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From Serbia to Ontario
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One-way flight from Serbia to Ontario
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Highest demand for flights based on searches. 7% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 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 Serbia to Ontario

Cheapest flights from Serbia to Ontario
Explore the most affordable flight options available from Serbia to Ontario. 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.
Mon 9/16:10 amBEG - ONT
2 stops23h 23mUnited Airlines
Mon 9/156:04 amONT - BEG
2 stops21h 31mUnited Airlines
Deal found 4/29$852
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2912:35 pmBEG - ONT
2 stops20h 08mDelta
Fri 9/125:05 pmONT - BEG
2 stops20h 50mDelta
Deal found 4/29$870
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.
Tue 9/27:50 amBEG - ONT
1 stop23h 40mAir Serbia
Tue 9/1611:00 pmONT - BEG
1 stop20h 40mAir Serbia
Deal found 4/29$1,007
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2510:30 amBEG - ONT
2 stops22h 13mMultiple Airlines
Sat 6/712:49 pmONT - BEG
2 stops19h 21mMultiple Airlines
Deal found 4/30$1,242

Cheapflights Fare Finder

Customize your flight search to find flights from Serbia to Ontario 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 Serbia to Ontario that are best for you.

Fly from

Serbia

Fly to

Ontario

Route

Depart

Return

Price

BelgradeOntario

BEG - ONT

BEGONT

Belgrade Nikola Tesla

Mon 9/1

6:10 am-8:33 pm

2 stops23h 23m

Ontario

Mon 9/15

6:04 am-12:35 pm

2 stops21h 31m

$852

BelgradeOntario

BEG - ONT

BEGONT

Belgrade Nikola Tesla

Fri 8/29

12:35 pm-11:43 pm

2 stops20h 08m

Ontario

Fri 9/12

5:05 pm-10:55 pm

2 stops20h 50m

$870

BelgradeOntario

BEG - ONT

BEGONT

Belgrade Nikola Tesla

Tue 9/2

7:50 am-10:30 pm

1 stop23h 40m

Ontario

Mon 9/15

11:00 pm-4:40 am

1 stop20h 40m

$1,007

BelgradeOntario

BEG - ONT

BEGONT

Belgrade Nikola Tesla

Sun 5/25

10:30 am-11:43 pm

2 stops22h 13m

Ontario

Sat 6/7

12:49 pm-5:10 pm

2 stops19h 21m

$1,242

BelgradeOntario

BEG - ONT

BEGONT

Belgrade Nikola Tesla

Mon 5/26

7:50 am-9:11 pm

1 stop22h 21m

$638

BelgradeOntario

BEG - ONT

BEGONT

Belgrade Nikola Tesla

Sat 5/24

6:05 am-9:10 pm

2 stops24h 05m

$800

BelgradeOntario

BEG - ONT

BEGONT

Belgrade Nikola Tesla

Tue 5/6

6:10 am-8:34 pm

2 stops23h 24m

$810

BelgradeOntario

BEG - ONT

BEGONT

Belgrade Nikola Tesla

Tue 5/6

1:30 pm-2:25 pm

2 stops33h 55m

$811

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Best time to book a flight from Serbia to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Serbia to Ontario (average of $246). Flying from Serbia to Ontario in March is currently the most expensive (average of $328). 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 Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated May 1, 2025.
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Lufthansa
6.7
Okay
7,045 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Serbia
6.3
Okay
196 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Serbia to Ontario. 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 into for flights to Ontario from Serbia?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Serbia. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    $638 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 Lufthansa and United Airlines, with prices starting from $800 and $811, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Serbia to Ontario (average of $246). Flying from Serbia to Ontario in March is currently the most expensive (average of $328). 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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