$349 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 12/13. 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.
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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

Thu, Jan 1 - Fri, Jan 30
United Airlines Logo
7:30 am - 1:15 pmPDX-BRU
20h 45m2 stops
United Airlines Logo
10:10 am - 10:32 pmBRU-PDX
21h 22m1 stop
$503United Airlines
Find Deal
Fri, Jan 16 - Tue, Jan 20
Lufthansa Logo
7:00 am - 8:55 amPDX-BRU
16h 55m1 stop
Lufthansa Logo
9:05 am - 6:30 pmBRU-PDX
18h 25m2 stops
$506Lufthansa
Find Deal
Fri, Jan 16 - Tue, Jan 20
Brussels Airlines Logo
7:00 am - 8:55 amPDX-BRU
16h 55m1 stop
Brussels Airlines Logo
10:10 am - 6:56 pmBRU-PDX
17h 46m1 stop
$507Brussels Airlines
Find Deal
Fri, Jan 16 - Tue, Jan 20
United Airlines Logo
7:00 am - 1:15 pmPDX-BRU
21h 15m2 stops
United Airlines Logo
11:15 am - 12:39 amBRU-PDX
22h 24m2 stops
$508United Airlines
Find Deal
Fri, Jan 16 - Tue, Jan 20
British Airways Logo
5:45 pm - 3:25 pmPDX-BRU
12h 40m1 stop
British Airways Logo
9:45 pm - 3:55 pmBRU-PDX
27h 10m1 stop
$509British Airways
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Mon, Jan 5 - Mon, Jan 12
British Airways Logo
5:45 pm - 4:40 pmPDX-BRU
13h 55m1 stop
British Airways Logo
8:45 pm - 8:27 pmBRU-PDX
32h 42m2 stops
$516British Airways
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Tue, Mar 17 - Tue, Apr 7
Scandinavian Airlines Logo
10:00 am - 7:50 pmPDX-BRU
25h 50m2 stops
Scandinavian Airlines Logo
7:10 pm - 10:22 pmBRU-PDX
36h 12m2 stops
$588Scandinavian Airlines
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Mon, Jan 5 - Mon, Jan 12
United Airlines Logo
7:30 am - 1:15 pmPDX-BRU
44h 45m2 stops
United Airlines Logo
10:30 am - 10:32 pmBRU-PDX
21h 02m2 stops
$608United Airlines
Find Deal
Tue, Mar 17 - Tue, Mar 31
Scandinavian Airlines Logo
1:00 pm - 9:40 amPDX-BRU
36h 40m2 stops
Scandinavian Airlines Logo
11:20 am - 9:35 pmBRU-PDX
43h 15m2 stops
$693Scandinavian Airlines
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Thu, Jan 1 - Fri, Jan 30
Multiple Airlines Logo
9:50 am - 7:55 pmPDX-CRL
25h 05m3 stops
Multiple Airlines Logo
8:55 pm - 6:30 pmCRL-PDX
30h 35m3 stops
$1,728Multiple Airlines
Find Deal
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 October, when tickets cost $619 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,431 and $1,125 respectively.

What’s the cheapest day of the week to fly from Portland to Belgium?

The average price of all round-trip flights from Portland to Belgium clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Belgium on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Portland to Belgium. For your return ticket, we recommend flying on a Wednesday and avoiding Fridays for the best deals.

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 52% 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$349
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Portland to Brussels

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.

  • What is the cheapest time of day to fly to Belgium?

    The cheapest time of day to fly to Belgium is generally at night, when round-trip flights cost $792 on average. Morning departures are around 8% cheaper than evening flights, on average. The most expensive time of day to fly to Belgium is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,181.

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 8001 reviews
7.3Food
7.9Entertainment
8.1Boarding
8.5Crew
7.9Comfort
Airline reviews

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

10.0 ExcellentWilliam, Nov 2025ATL - SJO
Read more Delta reviews

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

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.

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

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

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

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.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

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

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

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

Information on your arrival and departure airports