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$438+ Cheap flights from Portland (PDX) to Serbia

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BEG
Feb 21 — Feb 281
Sat 2/21
Sat 2/28
1 adult, Economy
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Cheap flight deals from Portland to Serbia

Cheapest flights from Portland to Serbia
Explore the most affordable flight options available from Portland to Serbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2026.

This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 3/57:30 am
PDX
-
BEG
2 stops31h 20m
United Airlines
Mon 3/96:15 am
BEG
-
PDX
2 stops26h 20m
United Airlines
Deal found 1/20$583
This FlightHub deal was found by Cheapflights users on 1/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:05 pm
PDX
-
BEG
2 stops36h 05m
Multiple Airlines
Sat 5/25:10 pm
BEG
-
PDX
2 stops40h 49m
Multiple Airlines
Deal found 1/22$599
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Sat 4/2511:59 pm
PDX
-
BEG
2 stops27h 46m
United Airlines
Sat 5/21:40 pm
BEG
-
PDX
2 stops44h 19m
United Airlines
Deal found 1/20$624
This KLM deal was found by Cheapflights users on 1/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/251:05 pm
PDX
-
BEG
1 stop24h 50m
KLM
Sat 5/26:00 am
BEG
-
PDX
1 stop14h 10m
KLM
Deal found 1/20$647
This Air Canada deal was found by Cheapflights users on 1/22. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:50 am
PDX
-
BEG
2 stops21h 35m
Air Canada
Sat 5/21:05 pm
BEG
-
PDX
3 stops29h 25m
Air Canada
Deal found 1/22$770
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Sat 3/71:00 pm
PDX
-
BEG
3 stops49h 50m
United Airlines
Sat 3/141:50 pm
BEG
-
PDX
2 stops40h 55m
United Airlines
Deal found 1/20$773

Find flight deals from Portland to Serbia

Keep the following information in mind while searching for Portland to Serbia flight deals. Data was last updated January 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$583
(United Airlines)

One-way from

$438
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$720
Provider with most accurate pricing for Portland-Belgrade Nikola Tesla flight deals.
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Provider most trusted by Cheapflights users for Portland-Belgrade Nikola Tesla flights.
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From Portland to Serbia
Search Deals
One-way flight from Portland to Serbia
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($294 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 22, 2026.
Use the filters below to find and compare flights from Portland to Serbia that are best for you.

Fly from

Portland

Fly to

Serbia

Route

Depart

Return

Price

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sat 3/7

7:30 am-11:50 pm

2 stops31h 20m

Belgrade Nikola Tesla

Sat 3/14

1:50 pm-12:35 am

2 stops18h 45m

$583

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-12:35 am

2 stops26h 20m

$583

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sat 4/25

3:15 pm-4:10 pm

2 stops39h 55m

Belgrade Nikola Tesla

Sat 5/2

5:10 pm-12:59 am

2 stops40h 49m

$599

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sat 4/25

11:59 pm-12:45 pm

2 stops27h 46m

Belgrade Nikola Tesla

Sat 5/2

1:40 pm-12:59 am

2 stops44h 19m

$624

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sat 4/25

1:05 pm-10:55 pm

1 stop24h 50m

Belgrade Nikola Tesla

Sat 5/2

6:00 am-11:10 am

1 stop14h 10m

$647

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sat 4/25

1:05 pm-11:55 am

1 stop13h 50m

Belgrade Nikola Tesla

Sat 5/2

6:00 am-11:10 am

1 stop14h 10m

$647

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Wed 3/4

7:00 am-11:50 pm

2 stops31h 50m

$438

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 2/27

1:25 pm-11:25 pm

1 stop25h 00m

$449

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Wed 3/4

1:25 pm-11:25 pm

1 stop25h 00m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Best time to book a flight from Portland to Serbia

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

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

Currently, February is the cheapest month in which you can book a flight from Portland to Serbia (average of $552). Flying from Portland to Serbia in June is currently the most expensive (average of $1,102). 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.

Reviews of airlines servicing Serbia

Get insights into the airlines that provide service to Serbia. 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 Serbia. Reviews last updated January 22, 2026.
See what other customers who have flown with Delta and KLM from Portland to Serbia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,091 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,091 reviews
Delta
7.9
Good
8,091 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,442 reviews
Delta
7.9
Good
8,091 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Serbia.

  • How long is the flight from Portland to Serbia?

    There are many flights that can get you from Portland to Serbia in 31h 20m. Fly via United Airlines to get the fastest option. The distance between Portland and Serbia is about 5788 mi.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Portland to Serbia (average of $552). Flying from Portland to Serbia in June is currently the most expensive (average of $1,102). 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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Top 2 airlines flying from Portland to Serbia

Discover the top 2 airlines that operate flights from Portland to Serbia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$657Average$860FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$704Average$988FlexibilityNo cancel feeOn-time75%

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