$234 Find Cheap Flights from Portland to Belgium

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 Belgium departing on 5/11. 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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Book Cheap Portland to Belgium 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 Belgium 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 Belgium

Rab, Mar 18 - Rab, Mar 25
Air Canada Logo
3:15 pm - 7:50 am
PDX
-
BRU
32h 35m
2 stops
Air Canada Logo
10:00 am - 2:40 pm
BRU
-
PDX
36h 40m
2 stops
$470Air Canada
Sel, Mar 10 - Kam, Mar 19
Air Canada Logo
3:15 pm - 7:50 am
PDX
-
BRU
32h 35m
2 stops
Air Canada Logo
10:00 am - 10:45 pm
BRU
-
PDX
44h 45m
2 stops
$489Air Canada
Sab, Apr 25 - Sen, Mei 4
Multiple Airlines Logo
7:05 pm - 7:10 am
PDX
-
BRU
27h 05m
2 stops
Multiple Airlines Logo
7:25 pm - 7:05 pm
BRU
-
PDX
32h 40m
2 stops
$491Multiple Airlines
Min, Mar 8 - Min, Mar 22
KLM Logo
6:30 am - 8:00 am
PDX
-
BRU
17h 30m
1 stop
KLM Logo
10:45 am - 12:25 pm
BRU
-
PDX
33h 40m
1 stop
$501KLM
Rab, Apr 22 - Rab, Apr 29
United Airlines Logo
8:05 am - 1:15 pm
PDX
-
BRU
20h 10m
2 stops
United Airlines Logo
12:00 pm - 8:42 pm
BRU
-
PDX
17h 42m
1 stop
$506United Airlines
Rab, Mar 4 - Min, Mar 8
United Airlines Logo
1:18 pm - 1:15 pm
PDX
-
BRU
14h 57m
2 stops
United Airlines Logo
10:10 am - 9:45 pm
BRU
-
PDX
20h 35m
1 stop
$507United Airlines
Rab, Apr 22 - Rab, Apr 29
United Airlines Logo
10:50 am - 9:00 am
PDX
-
BRU
13h 10m
1 stop
United Airlines Logo
12:00 pm - 8:42 pm
BRU
-
PDX
17h 42m
1 stop
$509United Airlines
Rab, Mar 4 - Min, Mar 8
United Airlines Logo
10:56 am - 8:55 am
PDX
-
BRU
12h 59m
1 stop
United Airlines Logo
11:55 am - 9:58 pm
BRU
-
PDX
18h 03m
1 stop
$510United Airlines
Rab, Apr 22 - Rab, Apr 29
Lufthansa Logo
7:15 am - 12:45 pm
PDX
-
BRU
20h 30m
2 stops
Lufthansa Logo
8:30 am - 10:29 pm
BRU
-
PDX
22h 59m
2 stops
$516Lufthansa
Min, Mar 8 - Min, Mar 22
Multiple Airlines Logo
2:25 pm - 6:35 pm
PDX
-
CRL
20h 10m
2 stops
Multiple Airlines Logo
6:50 pm - 12:25 pm
CRL
-
PDX
25h 35m
2 stops
$1,376Multiple Airlines
Booking Insights

KAYAK's insights & trends for Portland to Belgium flights

Get data-powered insights and trends into flights from Portland to Belgium 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 Belgium?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Belgium, 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 Belgium is January, when tickets cost $531 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,434 and $1,125 respectively.

How far in advance should I book a flight from Portland to Belgium?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Belgium, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Belgium, you should book around 2 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$234
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Portland to Brussels Airport

FAQs - booking Belgium flights

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

    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 Belgium.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Belgium 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 Belgium?

    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 Belgium 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 Belgium?

    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 Belgium up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Portland to Belgium

 
Need help choosing which airline to fly with from Portland to Belgium? 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 8135 reviews
8.1Boarding
7.9Comfort
8.5Crew
7.8Entertainment
7.2Food
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.

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

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

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

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.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

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!

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

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

Information on your arrival and departure airports