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Cheap flights from Ontario to Belgrade from $453

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Belgrade departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Belgrade

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:41 pm - 11:25 pm
ONT
-
BEG
25h 44m2 stops
Delta Logo
12:35 pm - 10:51 pm
BEG
-
ONT
43h 16m2 stops
$563Delta
dom., ene. 18 - sáb., ene. 24
United Airlines Logo
6:00 am - 12:50 pm
ONT
-
BEG
21h 50m2 stops
United Airlines Logo
1:50 pm - 10:53 pm
BEG
-
ONT
18h 03m2 stops
$583United Airlines
dom., ene. 11 - dom., ene. 25
United Airlines Logo
5:05 am - 12:55 pm
ONT
-
BEG
22h 50m2 stops
United Airlines Logo
1:50 pm - 10:53 pm
BEG
-
ONT
18h 03m2 stops
$683United Airlines
sáb., ene. 24 - sáb., ene. 31
United Airlines Logo
11:59 pm - 12:55 pm
ONT
-
BEG
52h 56m2 stops
United Airlines Logo
6:15 am - 10:36 pm
BEG
-
ONT
24h 21m2 stops
$688United Airlines
mié., mar. 11 - mié., mar. 25
United Airlines Logo
6:00 am - 12:55 pm
ONT
-
BEG
21h 55m2 stops
United Airlines Logo
1:50 pm - 11:18 am
BEG
-
ONT
54h 28m3 stops
$703United Airlines
sáb., ene. 10 - vie., ene. 16
United Airlines Logo
6:37 pm - 12:50 pm
ONT
-
BEG
34h 13m3 stops
United Airlines Logo
6:00 am - 10:26 pm
BEG
-
ONT
25h 26m2 stops
$773United Airlines
mar., mar. 24 - dom., abr. 12
United Airlines Logo
6:00 am - 12:55 pm
ONT
-
BEG
21h 55m2 stops
United Airlines Logo
1:50 pm - 11:18 am
BEG
-
ONT
54h 28m3 stops
$803United Airlines
sáb., ene. 10 - sáb., ene. 17
United Airlines Logo
6:37 pm - 12:50 pm
ONT
-
BEG
34h 13m2 stops
United Airlines Logo
6:00 am - 8:46 pm
BEG
-
ONT
23h 46m2 stops
$853United Airlines
mar., mar. 24 - dom., abr. 12
United Airlines Logo
6:00 am - 12:50 pm
ONT
-
BEG
45h 50m2 stops
United Airlines Logo
1:50 pm - 9:58 pm
BEG
-
ONT
41h 08m2 stops
$902United Airlines
sáb., ene. 17 - vie., ene. 23
United Airlines Logo
5:05 am - 1:05 pm
ONT
-
BEG
47h 00m2 stops
United Airlines Logo
6:15 am - 8:58 pm
BEG
-
ONT
23h 43m2 stops
$981United Airlines
lun., dic. 29 - mié., ene. 21

United Airlines flights from Ontario to Belgrade

Our best United Airlines deals on Ontario to Belgrade flight tickets
United Airlines
Jan 11
ONT6:00 amOntario
21h 50m
2 stops
BEG12:50 pmBelgrade Nikola Tesla
Jan 25
BEG1:50 pmBelgrade Nikola Tesla
18h 03m
2 stops
ONT10:53 pmOntario
$583
Find similar
United Airlines
Jan 24
ONT5:05 amOntario
22h 50m
2 stops
BEG12:55 pmBelgrade Nikola Tesla
Jan 31
BEG1:50 pmBelgrade Nikola Tesla
18h 03m
2 stops
ONT10:53 pmOntario
$683
Find similar
United Airlines
Mar 11
ONT11:59 pmOntario
52h 56m
2 stops
BEG12:55 pmBelgrade Nikola Tesla
Mar 25
BEG6:15 amBelgrade Nikola Tesla
24h 21m
2 stops
ONT10:36 pmOntario
$688
Find similar

Delta flights from Ontario to Belgrade

Our best Delta deals on Ontario to Belgrade flight tickets
Delta
Jan 18
ONT12:41 pmOntario
25h 44m
2 stops
BEG11:25 pmBelgrade Nikola Tesla
Jan 24
BEG12:35 pmBelgrade Nikola Tesla
43h 16m
2 stops
ONT10:51 pmOntario
$563
Find similar
Delta
Dec 28
ONT6:00 amOntario
32h 25m
2 stops
BEG11:25 pmBelgrade Nikola Tesla
Jan 17
BEG6:05 amBelgrade Nikola Tesla
25h 46m
2 stops
ONT10:51 pmOntario
$1,008
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 diciembre 11, 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

dom. 1/18

12:41 pm-11:25 pm

2 stops25h 44m

Belgrade Nikola Tesla

sáb. 1/24

12:35 pm-10:51 pm

2 stops43h 16m

$563

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

dom. 1/11

6:00 am-12:50 pm

2 stops21h 50m

Belgrade Nikola Tesla

dom. 1/25

1:50 pm-10:53 pm

2 stops18h 03m

$583

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

sáb. 1/24

5:05 am-12:55 pm

2 stops22h 50m

Belgrade Nikola Tesla

sáb. 1/31

1:50 pm-10:53 pm

2 stops18h 03m

$683

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

mié. 3/11

11:59 pm-12:55 pm

2 stops52h 56m

Belgrade Nikola Tesla

mié. 3/25

6:15 am-10:36 pm

2 stops24h 21m

$688

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

sáb. 1/10

6:00 am-12:55 pm

2 stops21h 55m

Belgrade Nikola Tesla

vie. 1/16

1:50 pm-11:18 am

3 stops54h 28m

$703

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

mar. 3/24

6:37 pm-12:50 pm

3 stops34h 13m

Belgrade Nikola Tesla

dom. 4/12

6:00 am-10:26 pm

2 stops25h 26m

$773

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

sáb. 1/10

6:00 am-12:55 pm

2 stops21h 55m

Belgrade Nikola Tesla

sáb. 1/17

1:50 pm-11:18 am

3 stops54h 28m

$803

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

mar. 3/24

6:37 pm-12:50 pm

2 stops34h 13m

Belgrade Nikola Tesla

dom. 4/12

6:00 am-8:46 pm

2 stops23h 46m

$853

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

sáb. 1/17

6:00 am-12:50 pm

2 stops45h 50m

Belgrade Nikola Tesla

vie. 1/23

1:50 pm-9:58 pm

2 stops41h 08m

$902

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

lun. 12/29

5:05 am-1:05 pm

2 stops47h 00m

Belgrade Nikola Tesla

mié. 1/21

6:15 am-8:58 pm

2 stops23h 43m

$981

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Fastest flight time

21h 15m

Direct flights

None
The fastest flight from Ontario to Belgrade takes 21h 15m
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 21h 15m 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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1 adult
sáb. 1/10
sáb. 1/17
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