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Cheap flights from Portland to Serbia from $444

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Serbia departing on 2/27. 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 Portland to Serbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
8:30 am - 5:05 pmPDX-BEG
23h 35m2 stops
Lufthansa Logo
1:30 pm - 12:37 amBEG-PDX
20h 07m2 stops
$547Lufthansa
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Thu, Dec 4 - Mon, Dec 15
Multiple Airlines Logo
7:00 pm - 12:45 pmPDX-BEG
32h 45m2 stops
Multiple Airlines Logo
1:30 pm - 12:37 amBEG-PDX
20h 07m2 stops
$553Multiple Airlines
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Thu, Dec 4 - Mon, Dec 15
United Airlines Logo
8:30 am - 12:50 pmPDX-BEG
19h 20m2 stops
United Airlines Logo
6:15 am - 12:37 amBEG-PDX
27h 22m3 stops
$580United Airlines
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Thu, Dec 4 - Mon, Dec 15
Delta Logo
1:25 pm - 11:55 amPDX-BEG
13h 30m1 stop
Delta Logo
12:35 pm - 11:20 amBEG-PDX
31h 45m1 stop
$715Delta
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Fri, Jan 30 - Tue, Mar 31
KLM Logo
1:25 pm - 11:25 pmPDX-BEG
25h 00m1 stop
KLM Logo
12:35 pm - 11:20 amBEG-PDX
31h 45m1 stop
$716KLM
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Fri, Jan 30 - Tue, Mar 31
Delta Logo
7:10 am - 11:55 amPDX-BEG
43h 45m2 stops
Delta Logo
12:35 pm - 11:20 amBEG-PDX
31h 45m1 stop
$720Delta
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Fri, Jan 30 - Wed, Apr 1
United Airlines Logo
7:00 am - 12:55 pmPDX-BEG
20h 55m2 stops
United Airlines Logo
6:20 am - 10:38 pmBEG-PDX
25h 18m3 stops
$722United Airlines
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Sat, Feb 21 - Fri, Apr 24
Air Canada Logo
7:00 pm - 12:50 pmPDX-BEG
32h 50m3 stops
Air Canada Logo
6:15 am - 6:30 pmBEG-PDX
21h 15m3 stops
$723Air Canada
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Sat, Feb 21 - Tue, Apr 21
Air Canada Logo
9:50 am - 12:55 pmPDX-BEG
18h 05m2 stops
Air Canada Logo
1:05 pm - 9:15 amBEG-PDX
29h 10m2 stops
$726Air Canada
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Fri, Jan 30 - Tue, Mar 31
KLM Logo
1:25 pm - 11:25 pmPDX-BEG
25h 00m1 stop
KLM Logo
12:35 pm - 11:20 amBEG-PDX
31h 45m1 stop
$783KLM
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Fri, Jan 30 - Mon, Mar 30

United Airlines flights from Portland to Serbia

Our best United Airlines deals on Portland to Serbia flight tickets
United Airlines
Dec 4
PDX8:30 amPortland
19h 20m
2 stops
BEG12:50 pmBelgrade Nikola Tesla
Dec 15
BEG6:15 amBelgrade Nikola Tesla
27h 22m
3 stops
PDX12:37 amPortland
$580
Find similar
United Airlines
Feb 21
PDX7:00 amPortland
20h 55m
2 stops
BEG12:55 pmBelgrade Nikola Tesla
Apr 24
BEG6:20 amBelgrade Nikola Tesla
25h 18m
3 stops
PDX10:38 pmPortland
$722
Find similar
United Airlines
Jan 30
PDX7:45 amPortland
20h 10m
2 stops
BEG12:55 pmBelgrade Nikola Tesla
Mar 31
BEG6:20 amBelgrade Nikola Tesla
25h 18m
3 stops
PDX10:38 pmPortland
$752
Find similar

Delta flights from Portland to Serbia

Our best Delta deals on Portland to Serbia flight tickets
Delta
Jan 30
PDX1:25 pmPortland
13h 30m
1 stop
BEG11:55 amBelgrade Nikola Tesla
Mar 31
BEG12:35 pmBelgrade Nikola Tesla
31h 45m
1 stop
PDX11:20 amPortland
$715
Find similar
Delta
Jan 30
PDX7:10 amPortland
43h 45m
2 stops
BEG11:55 amBelgrade Nikola Tesla
Apr 1
BEG12:35 pmBelgrade Nikola Tesla
31h 45m
1 stop
PDX11:20 amPortland
$720
Find similar
Delta
Jan 30
PDX1:25 pmPortland
13h 30m
1 stop
BEG11:55 amBelgrade Nikola Tesla
Mar 30
BEG12:35 pmBelgrade Nikola Tesla
42h 00m
2 stops
PDX9:35 pmPortland
$727
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momondo Fare Finder

 
Customize your flight search to find flights from Portland 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Portland to Serbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Thu 12/4

8:30 am-5:05 pm

2 stops23h 35m

Belgrade Nikola Tesla

Mon 12/15

1:30 pm-12:37 am

2 stops20h 07m

$547

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Thu 12/4

7:00 pm-12:45 pm

2 stops32h 45m

Belgrade Nikola Tesla

Mon 12/15

1:30 pm-12:37 am

2 stops20h 07m

$553

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Thu 12/4

8:30 am-12:50 pm

2 stops19h 20m

Belgrade Nikola Tesla

Mon 12/15

6:15 am-12:37 am

3 stops27h 22m

$580

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 1/30

1:25 pm-11:55 am

1 stop13h 30m

Belgrade Nikola Tesla

Tue 3/31

12:35 pm-11:20 am

1 stop31h 45m

$715

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 1/30

1:25 pm-11:25 pm

1 stop25h 00m

Belgrade Nikola Tesla

Tue 3/31

12:35 pm-11:20 am

1 stop31h 45m

$716

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 1/30

7:10 am-11:55 am

2 stops43h 45m

Belgrade Nikola Tesla

Wed 4/1

12:35 pm-11:20 am

1 stop31h 45m

$720

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sat 2/21

7:00 am-12:55 pm

2 stops20h 55m

Belgrade Nikola Tesla

Fri 4/24

6:20 am-10:38 pm

3 stops25h 18m

$722

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sat 2/21

7:00 pm-12:50 pm

3 stops32h 50m

Belgrade Nikola Tesla

Tue 4/21

6:15 am-6:30 pm

3 stops21h 15m

$723

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 1/30

9:50 am-12:55 pm

2 stops18h 05m

Belgrade Nikola Tesla

Tue 3/31

1:05 pm-9:15 am

2 stops29h 10m

$726

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 1/30

1:25 pm-11:25 pm

1 stop25h 00m

Belgrade Nikola Tesla

Mon 3/30

12:35 pm-11:20 am

1 stop31h 45m

$783

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Serbia from

How to get the cheapest flight ticket from Portland to Serbia

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 Serbia?

According to our data, Wednesday is the cheapest day to fly to Serbia from Portland. The lowest ticket price found for a Wednesday departure recently was $843. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Serbia is Thursday, with ticket prices averaging around $1,426.

Cheap Portland to Serbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Serbia

Direct flights

None
There are no direct flights from Portland to Serbia. There are no popular flight routes from Portland to Serbia.
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  • When did momondo last update prices for flights from Portland Airport to Serbia?

    Prices for flights from Portland Airport to Serbia were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Serbia?

  • How old do you have to be to fly from Portland Airport to Serbia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Serbia.

  • What documentation or ID do you need to fly to Serbia?

    The required travel and health documents for your Serbia 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 Serbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland to Serbia

Compare and see reviews for airlines that fly from Portland to Serbia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $657Free CancellationRating
7.9
8,001 reviews
Search Delta flights
KLMPriceFrom $707Free CancellationRating
7.7
1,405 reviews
Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Serbia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Serbia for you.

Can I find flights from Portland to Serbia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Serbia from Portland with this policy.

How can momondo help me find flights from Portland to Serbia?

momondo provides multiple filters to help you find the best flight to Serbia from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Serbia, momondo offers a useful price alert feature which will track prices for flights to Serbia from Portland and alert you when they change.

An easier way to manage your Serbia trip

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