$338 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 10/7. 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

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Cheap Flights from Portland to Serbia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Belgrade
Belgrade2 stops$551
Belgrade
Belgrade2 stops$551

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

Mon, Oct 6 - Fri, Nov 14
Multiple Airlines Logo
7:40 pm - 7:10 pmPDX-BEG
38h 30m2 stops
Multiple Airlines Logo
6:15 am - 6:30 pmBEG-PDX
21h 15m2 stops
$551Multiple Airlines
Find Deal
Sun, Oct 26 - Fri, Nov 7
Air Canada Logo
6:15 am - 12:45 pmPDX-BEG
22h 30m2 stops
Air Canada Logo
6:15 am - 9:15 amBEG-PDX
36h 00m2 stops
$579Air Canada
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Mon, Oct 6 - Wed, Nov 19
Air Canada Logo
7:40 pm - 12:35 pmPDX-BEG
31h 55m2 stops
Air Canada Logo
6:15 am - 9:15 amBEG-PDX
36h 00m3 stops
$582Air Canada
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Mon, Oct 27 - Fri, Nov 7
United Airlines Logo
11:59 pm - 1:05 pmPDX-BEG
29h 06m2 stops
United Airlines Logo
1:50 pm - 12:26 amBEG-PDX
19h 36m2 stops
$596United Airlines
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Mon, Oct 27 - Mon, Nov 3
United Airlines Logo
10:05 am - 12:50 pmPDX-BEG
18h 45m2 stops
United Airlines Logo
1:50 pm - 6:40 pmBEG-PDX
37h 50m2 stops
$616United Airlines
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Sun, Oct 26 - Wed, Nov 5
Delta Logo
2:25 pm - 11:55 amPDX-BEG
13h 30m1 stop
Delta Logo
6:05 am - 11:25 amBEG-PDX
14h 20m1 stop
$618Delta
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Sun, Oct 26 - Wed, Nov 5
Delta Logo
6:00 am - 11:25 pmPDX-BEG
33h 25m2 stops
Delta Logo
6:05 am - 11:25 amBEG-PDX
14h 20m1 stop
$623Delta
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Wed, Oct 1 - Tue, Nov 18
Air France Logo
7:15 am - 11:40 amPDX-BEG
19h 25m2 stops
Air France Logo
6:30 am - 7:30 pmBEG-PDX
22h 00m2 stops
$645Air France
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Mon, Oct 6 - Wed, Nov 19
KLM Logo
1:15 pm - 10:55 pmPDX-BEG
24h 40m1 stop
KLM Logo
6:05 am - 11:25 amBEG-PDX
14h 20m1 stop
$678KLM
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Mon, Oct 6 - Fri, Nov 14
KLM Logo
7:12 am - 12:15 pmPDX-BEG
20h 03m2 stops
KLM Logo
6:05 am - 11:25 amBEG-PDX
14h 20m1 stop
$682KLM
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 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 Air Canada ($579) and United Airlines ($596).

Good to know

Cheapest flight$338
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 7957 reviews
7.9Comfort
8.5Crew
7.3Food
7.9Entertainment
8.2Boarding
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

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!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

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

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