$469 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 3/4. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Serbia

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
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

Tue, Apr 7 - Tue, Apr 28
Lufthansa Logo
1:39 pm - 11:25 pm
PDX
-
BEG
24h 46m
2 stops
Lufthansa Logo
1:10 pm - 12:44 am
BEG
-
PDX
20h 34m
2 stops
$551Lufthansa
Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
7:30 am - 11:50 pm
PDX
-
BEG
31h 20m
2 stops
United Airlines Logo
6:15 am - 11:04 pm
BEG
-
PDX
24h 49m
2 stops
$587United Airlines
Sat, Apr 25 - Sat, May 2
Lufthansa Logo
3:30 pm - 11:55 pm
PDX
-
BEG
47h 25m
2 stops
Lufthansa Logo
5:10 pm - 11:50 pm
BEG
-
PDX
39h 40m
2 stops
$629Lufthansa
Tue, Apr 7 - Tue, Apr 28
KLM Logo
1:05 pm - 10:55 pm
PDX
-
BEG
24h 50m
1 stop
KLM Logo
6:15 am - 2:50 pm
BEG
-
PDX
17h 35m
2 stops
$730KLM
Tue, Apr 7 - Tue, Apr 28
Multiple Airlines Logo
7:05 pm - 4:30 pm
PDX
-
BEG
36h 25m
2 stops
Multiple Airlines Logo
6:15 am - 6:30 pm
BEG
-
PDX
21h 15m
3 stops
$742Multiple Airlines
Sat, Apr 25 - Sat, May 2
KLM Logo
1:05 pm - 11:55 am
PDX
-
BEG
13h 50m
1 stop
KLM Logo
6:15 am - 6:52 pm
BEG
-
PDX
21h 37m
2 stops
$830KLM
Thu, Jul 30 - Mon, Aug 31
Multiple Airlines Logo
3:30 pm - 10:20 pm
PDX
-
BEG
21h 50m
1 stop
Multiple Airlines Logo
6:55 am - 1:15 pm
BEG
-
PDX
15h 20m
1 stop
$851Multiple Airlines
Thu, Jul 30 - Wed, Sep 2
Multiple Airlines Logo
3:30 pm - 10:20 pm
PDX
-
BEG
21h 50m
1 stop
Multiple Airlines Logo
5:25 pm - 1:15 pm
BEG
-
PDX
28h 50m
1 stop
$872Multiple Airlines
Sat, Aug 1 - Thu, Sep 3
Delta Logo
11:00 pm - 11:55 am
PDX
-
BEG
27h 55m
2 stops
Delta Logo
6:15 am - 11:10 am
BEG
-
PDX
13h 55m
1 stop
$875Delta
Sat, Aug 1 - Fri, Sep 4
Delta Logo
11:00 pm - 11:55 am
PDX
-
BEG
27h 55m
2 stops
Delta Logo
6:15 am - 9:35 pm
BEG
-
PDX
24h 20m
2 stops
$884Delta
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.

What is the cheapest month to fly from Portland to Serbia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Serbia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Serbia is November, when tickets cost $668 (return) on average. On the other hand, the most expensive months are June and October, when the average cost of round-trip tickets is $1,444 and $1,268 respectively.

Good to know

Low seasonFebruary
Cheapest flight$469
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 10% increase in price.
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 8128 reviews
7.8Entertainment
8.1Boarding
7.2Food
7.9Comfort
8.5Crew
Airline reviews

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

2.0 MediocreAlparda, Feb 2026
BOS - ICN
Read more Delta reviews

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

Empty seats next to me - wish it had been for a longer flight!!

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

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.

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!

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

Information on your arrival and departure airports