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Cheap flights from Ontario to Belgrade from $633

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Belgrade departing on 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Belgrade (ONT-BEG)

Cheap round-trip flights

United Airlines Logo
9:36 am - 12:35 pmONT-BEG
17h 59m2 stops
United Airlines Logo
1:50 pm - 10:51 pmBEG-ONT
18h 01m2 stops
$633United Airlines
Find Deal
Mon, Oct 20 - Wed, Nov 5
United Airlines Logo
9:36 am - 12:35 pmONT-BEG
17h 59m2 stops
United Airlines Logo
1:50 pm - 10:51 pmBEG-ONT
18h 01m2 stops
$640United Airlines
Find Deal
Mon, Oct 20 - Wed, Nov 5
United Airlines Logo
9:36 am - 12:35 pmONT-BEG
17h 59m2 stops
United Airlines Logo
1:50 pm - 10:51 pmBEG-ONT
18h 01m2 stops
$641United Airlines
Find Deal
Mon, Oct 20 - Wed, Nov 5
United Airlines Logo
9:36 am - 12:35 pmONT-BEG
17h 59m2 stops
United Airlines Logo
1:50 pm - 10:51 pmBEG-ONT
18h 01m2 stops
$695United Airlines
Find Deal
Mon, Oct 13 - Fri, Nov 14
United Airlines Logo
11:59 pm - 12:50 pmONT-BEG
27h 51m2 stops
United Airlines Logo
6:15 am - 8:58 pmBEG-ONT
23h 43m2 stops
$696United Airlines
Find Deal
Wed, Dec 31 - Wed, Jan 14
United Airlines Logo
5:40 am - 12:55 pmONT-BEG
22h 15m2 stops
United Airlines Logo
6:15 am - 9:21 pmBEG-ONT
23h 06m2 stops
$697United Airlines
Find Deal
Fri, Feb 27 - Fri, Mar 13
United Airlines Logo
1:20 pm - 12:50 pmONT-BEG
38h 30m2 stops
United Airlines Logo
1:50 pm - 9:19 amBEG-ONT
28h 29m2 stops
$702United Airlines
Find Deal
Sun, Feb 1 - Sun, Feb 15
United Airlines Logo
7:02 am - 12:35 pmONT-BEG
20h 33m2 stops
United Airlines Logo
6:10 am - 10:30 pmBEG-ONT
25h 20m2 stops
$750United Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
Logo
12:49 pm - 5:00 pmONT-BEG
19h 11m2 stops
Logo
10:20 am - 10:28 pmBEG-ONT
21h 08m2 stops
$953
Find Deal
Fri, Nov 28 - Fri, Dec 12
Logo
12:48 pm - 5:10 pmONT-BEG
19h 22m2 stops
Logo
10:20 am - 10:29 pmBEG-ONT
21h 09m2 stops
$1,016
Find Deal
Mon, Oct 20 - Wed, Nov 5

United Airlines flights from Ontario to Belgrade

Our best United Airlines deals on Ontario to Belgrade flight tickets
United Airlines
Oct 20
ONT9:36 amOntario
17h 59m
2 stops
BEG12:35 pmBelgrade Nikola Tesla
Nov 5
BEG1:50 pmBelgrade Nikola Tesla
18h 01m
2 stops
ONT10:51 pmOntario
$633
Find similar
United Airlines
Oct 20
ONT9:36 amOntario
17h 59m
2 stops
BEG12:35 pmBelgrade Nikola Tesla
Nov 5
BEG1:50 pmBelgrade Nikola Tesla
18h 01m
2 stops
ONT10:51 pmOntario
$640
Find similar
United Airlines
Oct 20
ONT9:36 amOntario
17h 59m
2 stops
BEG12:35 pmBelgrade Nikola Tesla
Nov 5
BEG1:50 pmBelgrade Nikola Tesla
18h 01m
2 stops
ONT10:51 pmOntario
$641
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 1, 2025.
Use the filters below to find and compare flights from Ontario to Belgrade that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 10/20

9:36 am-12:35 pm

2 stops17h 59m

Belgrade Nikola Tesla

Wed 11/5

1:50 pm-10:51 pm

2 stops18h 01m

$633

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 10/20

9:36 am-12:35 pm

2 stops17h 59m

Belgrade Nikola Tesla

Wed 11/5

1:50 pm-10:51 pm

2 stops18h 01m

$640

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 10/20

9:36 am-12:35 pm

2 stops17h 59m

Belgrade Nikola Tesla

Wed 11/5

1:50 pm-10:51 pm

2 stops18h 01m

$641

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 10/13

9:36 am-12:35 pm

2 stops17h 59m

Belgrade Nikola Tesla

Fri 11/14

1:50 pm-10:51 pm

2 stops18h 01m

$695

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Wed 12/31

11:59 pm-12:50 pm

2 stops27h 51m

Belgrade Nikola Tesla

Wed 1/14

6:15 am-8:58 pm

2 stops23h 43m

$696

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Fri 2/27

5:40 am-12:55 pm

2 stops22h 15m

Belgrade Nikola Tesla

Fri 3/13

6:15 am-9:21 pm

2 stops23h 06m

$697

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Sun 2/1

1:20 pm-12:50 pm

2 stops38h 30m

Belgrade Nikola Tesla

Sun 2/15

1:50 pm-9:19 am

2 stops28h 29m

$702

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Tue 10/7

7:02 am-12:35 pm

2 stops20h 33m

Belgrade Nikola Tesla

Tue 10/14

6:10 am-10:30 pm

2 stops25h 20m

$750

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Fri 11/28

12:49 pm-5:00 pm

2 stops19h 11m

Belgrade Nikola Tesla

Fri 12/12

10:20 am-10:28 pm

2 stops21h 08m

$953

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 10/20

12:48 pm-5:10 pm

2 stops19h 22m

Belgrade Nikola Tesla

Wed 11/5

10:20 am-10:29 pm

2 stops21h 09m

$1,016

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Belgrade from

How to get the cheapest flight ticket from Ontario to Belgrade

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Belgrade?

On average, the least expensive day to fly to Belgrade from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $876. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,142. These prices are subject to change though, so be sure to set up a Price Alert for flights to Belgrade.

When to book flights from Ontario to Belgrade

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Belgrade according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Belgrade (ONT to BEG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Belgrade

Direct flights

None
There are no direct flights from Ontario to Belgrade. There are no popular flight routes from Ontario to Belgrade.
Search flight deals

  • How far is Ontario to Belgrade Nikola Tesla by plane?

    A flight from Ontario to Belgrade Nikola Tesla will travel around 6383.2 mi. Typically, this will take 17h 08m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Belgrade Nikola Tesla Airport?

    Prices for flights from Ontario Airport to Belgrade Nikola Tesla Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Ontario Airport to Belgrade Nikola Tesla Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Belgrade Nikola Tesla Airport.

  • What documentation or ID do you need to fly to Belgrade Nikola Tesla Airport?

    The required travel and health documents for your Belgrade Nikola Tesla Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belgrade Nikola Tesla Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Belgrade?

Book flights to Belgrade if you plan to visit one of these locations
Novi Sad
Subotica

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Belgrade?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Belgrade. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Belgrade with flexible booking policies on momondo?

All flight searches from Ontario to Belgrade on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Belgrade?

Once you have performed a search for Ontario to Belgrade flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Belgrade right now. Can momondo alert me if prices change?

Price alerts on flights to Belgrade from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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