$444 Find Cheap Flights from Portland to Serbia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Serbia departing on 2/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Portland to Serbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Serbia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Serbia

Thu, Nov 13 - Mon, Nov 17
Multiple Airlines Logo
3:15 pm - 4:55 pmPDX-BEG
40h 40m2 stops
Multiple Airlines Logo
1:30 pm - 6:30 pmBEG-PDX
38h 00m2 stops
$703Multiple Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
7:30 am - 12:55 pmPDX-BEG
20h 25m2 stops
United Airlines Logo
1:50 pm - 8:29 pmBEG-PDX
39h 39m2 stops
$750United Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
KLM Logo
7:05 am - 11:55 amPDX-BEG
19h 50m2 stops
KLM Logo
6:05 am - 11:25 amBEG-PDX
14h 20m1 stop
$752KLM
Find Deal
Thu, Nov 13 - Mon, Nov 17
Multiple Airlines Logo
3:15 pm - 4:55 pmPDX-BEG
40h 40m2 stops
Multiple Airlines Logo
6:15 am - 9:15 amBEG-PDX
36h 00m3 stops
$755Multiple Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
7:00 am - 12:55 pmPDX-BEG
20h 55m3 stops
United Airlines Logo
6:15 am - 10:56 pmBEG-PDX
25h 41m3 stops
$1,131United Airlines
Find Deal
Sun, Mar 8 - Thu, Mar 12
Lufthansa Logo
9:50 am - 5:05 pmPDX-BEG
23h 15m2 stops
Lufthansa Logo
1:30 pm - 6:30 pmBEG-PDX
37h 00m2 stops
$1,726Lufthansa
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Sun, Mar 8 - Thu, Mar 12
Delta Logo
2:25 pm - 11:25 pmPDX-BEG
25h 00m1 stop
Delta Logo
12:35 pm - 12:25 pmBEG-PDX
31h 50m1 stop
$1,727Delta
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Sat, Mar 7 - Thu, Mar 12
Delta Logo
12:55 am - 11:25 pmPDX-BEG
37h 30m2 stops
Delta Logo
12:35 pm - 12:25 pmBEG-PDX
31h 50m1 stop
$1,732Delta
Find Deal
Sun, Mar 8 - Thu, Mar 12
Delta Logo
2:25 pm - 11:55 amPDX-BEG
13h 30m1 stop
Delta Logo
6:05 am - 4:51 pmBEG-PDX
18h 46m2 stops
$1,738Delta
Find Deal
Sun, Mar 8 - Thu, Mar 12
KLM Logo
2:25 pm - 11:55 amPDX-BEG
13h 30m1 stop
KLM Logo
12:35 pm - 12:25 pmBEG-PDX
31h 50m1 stop
$1,780KLM
Find Deal
Booking Insights

KAYAK's insights & trends for Portland to Serbia flights

Get data-powered insights and trends into flights from Portland to Serbia to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Portland and Serbia?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Portland to Serbia.

There are 2 airlines that fly nonstop from Portland to Serbia. They are KLM and Delta. The cheapest airline for this route is Delta, with the best round-trip deal found costing $657 and arriving in Belgrade (BEG). On average, Delta offers the best prices for nonstop flights between Portland and Serbia.

Which airlines provide the cheapest flights from Portland to Serbia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Portland to Serbia were found on United Airlines ($750) and KLM ($752).

Good to know

Low seasonNovember
Cheapest flight$444
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Portland to Belgrade

FAQs - booking Serbia flights

  • How does KAYAK find such low prices on flights from Portland to Serbia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Serbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Serbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Serbia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Serbia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Serbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Serbia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Serbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Portland to Serbia

 
Need help choosing which airline to fly with from Portland to Serbia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8001 reviews
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
8.2Boarding
Airline reviews

I truly love flying with Delta. They have always treated me with the upmost respect

10.0 ExcellentMAYRA, Nov 2025JFK - MIA
Read more Delta reviews

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Everything you need to know for your flight from Portland to Serbia

Information on your arrival and departure airports

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