$437 Find Cheap Flights from Portland to Serbia - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Price, demand and travel trends for Portland to Serbia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Portland to Serbia right now?

The cheapest fare from Portland to Serbia in the last week was $719 round-trip, to Belgrade Nikola Tesla (BEG).

What’s the cheapest month to fly from Portland to Serbia?

November is the cheapest time of year to fly, with average fares of $657. Prices are highest in June, when average flight costs increase to around $1,352.

Which airport in Serbia is the cheapest to fly to from Portland?

All flights from Portland to Serbia arrive at Belgrade Nikola Tesla (BEG). On average, round-trip fares are around $1,027.

What’s the cheapest day to fly from Portland to Serbia?

Sunday tends to be the cheapest day to fly from Portland to Serbia, while Monday is the most expensive. Fares run about 29% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Portland to Serbia?

Data from the past 12 months shows it's cheapest to fly to Serbia during the morning with average prices of $904. The afternoon is the most expensive time to fly, with average prices of $1,034.

Key details for Portland to Serbia flights

Low season

January

Cheapest flight

$437
Beat the crowds with an average 54% drop in travelers.
The most popular month to fly with an average 96% increase in travelers.
One-way flight from Portland to Belgrade

Your Portland to Serbia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Portland to Serbia?

    Yes. Fares from Portland to Serbia are low right now. As a rule of thumb, a round-trip under $823 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Portland to Serbia?

    Over the past 12 months, round-trip fares from Portland to Serbia have ranged from $823 to $1,152.

  • What airlines fly nonstop from Portland to Serbia?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Portland to Serbia. One-stop options include:

    • British Airways
    • KLM
    • Delta

  • Which cabin classes are available on flights from Portland to Serbia?

    On flights from Portland to Serbia you can only book Economy Class.

  • What are some popular landmarks in Serbia?

    KAYAK travelers' favorite landmarks in Serbia include:

    • Slavija Square
    • Trg Republike
    • Belgrade Arena
    • Nikola Tesla Museum

Your guide to booking Portland to Serbia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for November when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Sunday is usually the cheapest. Flights on Monday cost about 29% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Belgrade, which is the most popular destination in Serbia. From there, it's easy to continue on to other popular destinations such as Novi Sad, Zlatibor and Kopaonik.

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.
7.8
KLMOverall score based on 1595 reviews
7.7Comfort
8.4Crew
7.2Entertainment
7.4Food
7.8Boarding
Airline reviews

The flight itself was fine, food was expired and gross, staff were mostly amazing! KLM messed up rebooking for our first two flights that got cancelled and we almost didn’t make it to Amsterdam for an additional two days

4.0 OkayJessica, Sep 2026
Read more KLM reviews

The flight itself was fine, food was expired and gross, staff were mostly amazing! KLM messed up rebooking for our first two flights that got cancelled and we almost didn’t make it to Amsterdam for an additional two days

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

Had to cancel and rebook, KLM connection was cancelled prior to departure, ended up flying to Munich on non-Delta carrier.

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

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.

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!

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!

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

It was operated by Delta. Boarding took a long time. How difficult can it be? Overall decent trip. Liked the Salt Lake City airport. Better option than Chicago for transfers.

good in general food is just snack and beverages (same snacks all the time) could you try to change them?

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

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!!!!

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

The flights were on time- Great service Would have liked more options for food choices.

The brakes on the A220 are sensitive and uncomfortably grabby

More options for your flight from Portland to Serbia

Complete your trip to Serbia with a hotel stay or car rental