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$738+ Cheap flights from Portland (PDX) to Serbia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BEG
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
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 June 27, 2026.

This Air Canada deal was found by Cheapflights users on 6/25. 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.
Sun 12/67:00 am
PDX
-
BEG
2 stops20h 45m
Air Canada
Thu 12/106:15 am
BEG
-
PDX
2 stops23h 31m
Air Canada
Deal found 6/25$738
This FlightHub deal was found by Cheapflights users on 6/25. 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.
Tue 11/32:30 pm
PDX
-
BEG
2 stops17h 40m
Lufthansa
Tue 12/11:30 pm
BEG
-
PDX
2 stops20h 24m
Lufthansa
Deal found 6/25$786
This Air France deal was found by Cheapflights users on 6/25. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:15 am
PDX
-
BEG
2 stops21h 10m
Multiple Airlines
Tue 12/112:35 pm
BEG
-
PDX
1 stop31h 45m
Multiple Airlines
Deal found 6/25$795
This Air Canada deal was found by Cheapflights users on 6/22. 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.
Tue 11/37:00 am
PDX
-
BEG
2 stops20h 45m
Air Canada
Tue 12/16:15 am
BEG
-
PDX
3 stops23h 31m
Air Canada
Deal found 6/22$796
This Expedia deal was found by Cheapflights users on 6/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:05 am
PDX
-
BEG
2 stops20h 25m
Multiple Airlines
Tue 8/188:00 pm
BEG
-
PDX
2 stops32h 11m
Multiple Airlines
Deal found 6/27$814
This KLM deal was found by Cheapflights users on 6/27. 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.
Tue 8/47:00 am
PDX
-
BEG
2 stops19h 55m
KLM
Tue 8/1812:35 pm
BEG
-
PDX
1 stop31h 35m
KLM
Deal found 6/27$944
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Sun 8/97:00 am
PDX
-
BEG
2 stops20h 45m
United Airlines
Sun 8/161:40 pm
BEG
-
PDX
2 stops42h 12m
United Airlines
Deal found 6/25$953

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 June 27, 2026.

Round-trip from

$728
(Delta)

Popular in

June

Cheapest in

November

Average price

$1,352
From Portland to Serbia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 27, 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

Cheapest round-trip

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sun 12/6

7:00 am-12:45 pm

2 stops20h 45m

Belgrade Nikola Tesla

Thu 12/10

6:15 am-8:46 pm

2 stops23h 31m

$738
Quickest round-trip

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Tue 11/3

2:30 pm-5:10 pm

2 stops17h 40m

Belgrade Nikola Tesla

Tue 12/1

1:30 pm-12:54 am

2 stops20h 24m

$786

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Tue 11/3

7:00 am-12:45 pm

2 stops20h 45m

Belgrade Nikola Tesla

Tue 12/1

6:15 am-8:46 pm

3 stops23h 31m

$796

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Tue 11/3

10:00 am-12:45 pm

2 stops17h 45m

Belgrade Nikola Tesla

Tue 12/1

6:15 am-8:46 pm

3 stops23h 31m

$804

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Tue 8/4

11:05 am-4:30 pm

2 stops20h 25m

Belgrade Nikola Tesla

Tue 8/18

8:00 pm-7:11 pm

2 stops32h 11m

$814

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Tue 8/4

7:00 am-11:55 am

2 stops19h 55m

Belgrade Nikola Tesla

Tue 8/18

12:35 pm-11:10 am

1 stop31h 35m

$944

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Sorted by cheapest first

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 $534). Flying from Portland to Serbia in June is currently the most expensive (average of $1,352). 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 June 27, 2026.
See what other customers who have flown with KLM and Delta 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.
KLM
7.8
Good
1,531 reviews

Boarding

7.8

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,531 reviews
KLM
7.8
Good
1,531 reviews

Boarding

7.8

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Delta
7.8
Good
8,451 reviews
KLM
7.8
Good
1,531 reviews

Boarding

7.8

Crew

8.4

Entertainment

7.2

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 17h 40m. Fly via Air Canada or Lufthansa to get the fastest option. The distance between Portland and Serbia is about 5788 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $534). Flying from Portland to Serbia in June is currently the most expensive (average of $1,352). 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

Browse thousands of different options on Cheapflights for your next trip

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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 June 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$583Average$1,044FlexibilityNo cancel feeOn-time75%
DeltaCheapest$657Average$866FlexibilityNo cancel feeOn-timeN/A

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