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Cheap flights from Portland to Serbia from $547

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Serbia departing on 3/9. 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 Portland to Serbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
1:39 pm - 7:10 pm
PDX
-
BEG
21h 31m
2 stops
SWISS Logo
8:05 pm - 11:04 pm
BEG
-
PDX
34h 59m
2 stops
$547SWISS
Mon, Mar 9 - Sun, Mar 15
KLM Logo
2:25 pm - 11:25 pm
PDX
-
BEG
25h 00m
1 stop
KLM Logo
5:50 pm - 12:25 pm
BEG
-
PDX
26h 35m
1 stop
$550KLM
Mon, Mar 9 - Sun, Mar 15
KLM Logo
2:25 pm - 11:55 am
PDX
-
BEG
13h 30m
1 stop
KLM Logo
12:35 pm - 12:25 pm
BEG
-
PDX
31h 50m
1 stop
$553KLM
Mon, Mar 9 - Sun, Mar 15
Delta Logo
7:05 am - 11:25 pm
PDX
-
BEG
32h 20m
2 stops
Delta Logo
12:35 pm - 12:25 pm
BEG
-
PDX
31h 50m
1 stop
$555Delta
Sun, Mar 8 - Sun, Mar 15
KLM Logo
2:25 pm - 11:55 am
PDX
-
BEG
13h 30m
1 stop
KLM Logo
6:05 am - 7:05 pm
BEG
-
PDX
21h 00m
2 stops
$561KLM
Mon, Mar 9 - Tue, Mar 17
SWISS Logo
1:39 pm - 8:50 am
PDX
-
BEG
35h 11m
2 stops
SWISS Logo
2:35 pm - 11:04 pm
BEG
-
PDX
40h 29m
2 stops
$564SWISS
Mon, Mar 9 - Tue, Mar 17
Delta Logo
7:05 am - 11:25 pm
PDX
-
BEG
32h 20m
2 stops
Delta Logo
6:05 am - 9:53 pm
BEG
-
PDX
23h 48m
2 stops
$565Delta
Sun, Mar 8 - Tue, Mar 17
United Airlines Logo
7:30 am - 11:50 pm
PDX
-
BEG
31h 20m
2 stops
United Airlines Logo
6:15 am - 9:52 pm
BEG
-
PDX
23h 37m
2 stops
$586United Airlines
Thu, Mar 5 - Mon, Mar 9
Lufthansa Logo
7:00 am - 11:50 pm
PDX
-
BEG
32h 50m
2 stops
Lufthansa Logo
6:15 am - 12:35 am
BEG
-
PDX
26h 20m
2 stops
$590Lufthansa
Sun, Mar 8 - Wed, Mar 18
Lufthansa Logo
3:30 pm - 4:10 pm
PDX
-
BEG
39h 40m
2 stops
Lufthansa Logo
5:10 pm - 12:59 am
BEG
-
PDX
40h 49m
2 stops
$627Lufthansa
Sat, Apr 25 - Sat, May 2

KLM flights from Portland to Serbia

Our best KLM deals on Portland to Serbia flight tickets
KLM
Mar 9
PDX2:25 pmPortland
25h 00m
1 stop
BEG11:25 pmBelgrade Nikola Tesla
Mar 15
BEG5:50 pmBelgrade Nikola Tesla
26h 35m
1 stop
PDX12:25 pmPortland
$550
KLM
Mar 9
PDX2:25 pmPortland
13h 30m
1 stop
BEG11:55 amBelgrade Nikola Tesla
Mar 15
BEG12:35 pmBelgrade Nikola Tesla
31h 50m
1 stop
PDX12:25 pmPortland
$553
KLM
Mar 10
PDX7:00 amPortland
20h 55m
2 stops
BEG11:55 amBelgrade Nikola Tesla
Mar 16
BEG6:05 amBelgrade Nikola Tesla
14h 20m
1 stop
PDX12:25 pmPortland
$655

Delta flights from Portland to Serbia

Our best Delta deals on Portland to Serbia flight tickets
Delta
Mar 8
PDX7:05 amPortland
32h 20m
2 stops
BEG11:25 pmBelgrade Nikola Tesla
Mar 15
BEG12:35 pmBelgrade Nikola Tesla
31h 50m
1 stop
PDX12:25 pmPortland
$555
Delta
Mar 9
PDX2:25 pmPortland
25h 00m
1 stop
BEG11:25 pmBelgrade Nikola Tesla
Mar 19
BEG6:05 amBelgrade Nikola Tesla
25h 54m
2 stops
PDX11:59 pmPortland
$561
Delta
Mar 8
PDX7:05 amPortland
32h 20m
2 stops
BEG11:25 pmBelgrade Nikola Tesla
Mar 17
BEG6:05 amBelgrade Nikola Tesla
23h 48m
2 stops
PDX9:53 pmPortland
$565

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 February 9, 2026.
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

Mon 3/9

1:39 pm-7:10 pm

2 stops21h 31m

Belgrade Nikola Tesla

Sun 3/15

8:05 pm-11:04 pm

2 stops34h 59m

$547

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Mon 3/9

2:25 pm-11:25 pm

1 stop25h 00m

Belgrade Nikola Tesla

Sun 3/15

5:50 pm-12:25 pm

1 stop26h 35m

$550

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Mon 3/9

2:25 pm-11:55 am

1 stop13h 30m

Belgrade Nikola Tesla

Sun 3/15

12:35 pm-12:25 pm

1 stop31h 50m

$553

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sun 3/8

7:05 am-11:25 pm

2 stops32h 20m

Belgrade Nikola Tesla

Sun 3/15

12:35 pm-12:25 pm

1 stop31h 50m

$555

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Mon 3/9

2:25 pm-11:55 am

1 stop13h 30m

Belgrade Nikola Tesla

Tue 3/17

6:05 am-7:05 pm

2 stops21h 00m

$561

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Mon 3/9

1:39 pm-8:50 am

2 stops35h 11m

Belgrade Nikola Tesla

Tue 3/17

2:35 pm-11:04 pm

2 stops40h 29m

$564

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sun 3/8

7:05 am-11:25 pm

2 stops32h 20m

Belgrade Nikola Tesla

Tue 3/17

6:05 am-9:53 pm

2 stops23h 48m

$565

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Thu 3/5

7:30 am-11:50 pm

2 stops31h 20m

Belgrade Nikola Tesla

Mon 3/9

6:15 am-9:52 pm

2 stops23h 37m

$586

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sun 3/8

7:00 am-11:50 pm

2 stops32h 50m

Belgrade Nikola Tesla

Wed 3/18

6:15 am-12:35 am

2 stops26h 20m

$590

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sat 4/25

3:30 pm-4:10 pm

2 stops39h 40m

Belgrade Nikola Tesla

Sat 5/2

5:10 pm-12:59 am

2 stops40h 49m

$627

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 month to fly to Serbia?

The cheapest month to fly to Serbia from Portland is in November. Flight prices, which tend to average around $668, are often lower during this time because this is during the off-season. If you are unable to visit Serbia during the month of November, then departing from Portland during the month February is also very affordable. Most momondo users find prices during this month for around $719.

Cheap Portland to Serbia flight deals and tips

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

Fastest flight time

13h 30m

Direct flights

None
The fastest flight from Portland to Serbia takes 13h 30m
There are no direct flights from Portland to Serbia. There are no popular flight routes from Portland to Serbia.
Search flight deals

  • 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
KLMPriceFrom $627Free CancellationRating
7.7
1,450 reviews
Search KLM flights
DeltaPriceFrom $657Free CancellationRating
7.9
8,174 reviews
Search Delta 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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