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$583+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BEG
Aug 15 — Aug 221
Sat 8/15
Sat 8/22
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 July 16, 2026.

This Trip.com deal was found by Cheapflights users on 7/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:00 pm
PDX
-
BEG
2 stops19h 00m
Multiple Airlines
Wed 9/96:30 am
BEG
-
PDX
2 stops38h 20m
Multiple Airlines
Deal found 7/11$583
This Air Canada deal was found by Cheapflights users on 7/12. 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 7/12$738
This oojo deal was found by Cheapflights users on 7/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:50 am
PDX
-
BEG
2 stops20h 40m
Multiple Airlines
Wed 9/99:15 am
BEG
-
PDX
2 stops22h 37m
Multiple Airlines
Deal found 7/15$831
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:05 pm
PDX
-
BEG
1 stop13h 50m
Delta
Wed 9/96:15 am
BEG
-
PDX
1 stop13h 55m
Delta
Deal found 7/15$837
This KLM deal was found by Cheapflights users on 7/15. 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 8/187:00 am
PDX
-
BEG
2 stops19h 55m
KLM
Wed 9/96:15 am
BEG
-
PDX
1 stop13h 55m
KLM
Deal found 7/15$841
This SWISS deal was found by Cheapflights users on 7/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:17 am
PDX
-
BEG
2 stops20h 38m
SWISS
Wed 9/98:00 pm
BEG
-
PDX
2 stops32h 11m
SWISS
Deal found 7/11$842
This Condor deal was found by Cheapflights users on 7/11. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:19 am
PDX
-
BEG
2 stops30h 01m
Multiple Airlines
Mon 8/316:55 am
BEG
-
PDX
2 stops24h 56m
Multiple Airlines
Deal found 7/11$850
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/201:05 pm
PDX
-
BEG
1 stop13h 50m
Delta
Tue 9/2912:35 pm
BEG
-
PDX
1 stop31h 35m
Delta
Deal found 7/15$886
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:00 am
PDX
-
BEG
2 stops19h 55m
Delta
Mon 9/2812:35 pm
BEG
-
PDX
1 stop31h 35m
Delta
Deal found 7/15$887
This KLM deal was found by Cheapflights users on 7/13. 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.
Fri 8/2111:22 am
PDX
-
BEG
2 stops15h 33m
KLM
Fri 9/46:15 am
BEG
-
PDX
1 stop13h 55m
KLM
Deal found 7/13$891
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:44 am
PDX
-
BEG
2 stops17h 11m
Delta
Thu 9/246:15 am
BEG
-
PDX
2 stops22h 47m
Delta
Deal found 7/15$892
This Expedia deal was found by Cheapflights users on 7/12. 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.
Fri 8/217:01 am
PDX
-
BEG
2 stops30h 19m
Multiple Airlines
Fri 9/46:55 am
BEG
-
PDX
2 stops26h 04m
Multiple Airlines
Deal found 7/12$900

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 July 16, 2026.

Round-trip from

$583
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$1,044
From Portland to Serbia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($158 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 16, 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
Quickest round-trip

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Tue 8/18

1:05 pm-11:55 am

1 stop13h 50m

Belgrade Nikola Tesla

Wed 9/9

6:15 am-11:10 am

1 stop13h 55m

$837

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Tue 8/18

7:00 am-11:55 am

2 stops19h 55m

Belgrade Nikola Tesla

Wed 9/9

6:15 am-11:10 am

1 stop13h 55m

$841

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Wed 8/26

8:17 am-1:55 pm

2 stops20h 38m

Belgrade Nikola Tesla

Wed 9/9

8:00 pm-7:11 pm

2 stops32h 11m

$842

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Sun 8/9

7:19 am-10:20 pm

2 stops30h 01m

Belgrade Nikola Tesla

Mon 8/31

6:55 am-10:51 pm

2 stops24h 56m

$850

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 8/21

11:22 am-11:55 am

2 stops15h 33m

Belgrade Nikola Tesla

Fri 9/4

6:15 am-11:10 am

1 stop13h 55m

$891

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Wed 9/16

7:00 am-11:55 am

2 stops19h 55m

Belgrade Nikola Tesla

Tue 9/29

6:15 am-9:02 pm

2 stops23h 47m

$892

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Wed 9/16

7:00 am-11:55 am

2 stops19h 55m

Belgrade Nikola Tesla

Thu 9/24

6:15 am-6:16 pm

2 stops21h 01m

$892

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Tue 9/15

1:45 pm-10:55 pm

2 stops24h 10m

Belgrade Nikola Tesla

Tue 9/29

6:15 am-8:16 pm

2 stops23h 01m

$892

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 8/21

7:01 am-10:20 pm

2 stops30h 19m

Belgrade Nikola Tesla

Fri 9/4

6:55 am-11:59 pm

2 stops26h 04m

$900

PortlandBelgrade

PDX - BEG

PDXBEG

Portland

Fri 8/21

5:30 am-11:55 am

2 stops21h 25m

Belgrade Nikola Tesla

Fri 9/4

6:15 am-5:14 pm

2 stops19h 59m

$901

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

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 July 16, 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
1,539 reviews

Food

7.3

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.2

Boarding

7.8

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
1,539 reviews
KLM
7.8
Good
1,539 reviews

Food

7.3

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.2

Boarding

7.8

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
8,472 reviews
KLM
7.8
Good
1,539 reviews

Food

7.3

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.2

Boarding

7.8

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 13h 50m. Fly via Delta, KLM, or SWISS 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 July 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$583Average$960FlexibilityNo cancel feeOn-time75%
DeltaCheapest$657Average$877FlexibilityNo cancel feeOn-timeN/A

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