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$576+ Cheap flights from Portland, ME (PWM) to Brussels

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BRU
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheap flight deals from Portland to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 20, 2025.

Round-trip from

$576
(Delta)

Popular in

June

Cheapest in

November

Average price

$539
From Portland to Brussels
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Portland to Brussels

Cheapest flights from Portland to Brussels
Explore the most affordable flight options available from Portland to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:00 pmPWM - BRU
2 stops16h 15mUnited Airlines
Thu 12/1111:15 amBRU - PWM
1 stop13h 27mUnited Airlines
Deal found 10/20$653

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Brussels that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 20, 2025.
Use the filters below to find and compare flights from Portland to Brussels that are best for you.

Fly from

Portland

Fly to

Brussels

Route

Depart

Return

Price

PortlandBrussels

PWM - BRU

PWMBRU

Portland

Wed 1/14

6:30 am-7:35 am

2 stops19h 05m

Brussels Bruxelles-National

Sun 1/18

6:15 am-11:49 pm

2 stops23h 34m

$576

PortlandBrussels

PWM - BRU

PWMBRU

Portland

Thu 12/4

3:00 pm-1:15 pm

2 stops16h 15m

Brussels Bruxelles-National

Thu 12/11

11:15 am-6:42 pm

1 stop13h 27m

$653

PortlandBrussels

PWM - BRU

PWMBRU

Portland

Wed 1/14

3:12 pm-1:15 pm

2 stops16h 03m

Brussels Bruxelles-National

Sun 1/18

11:15 am-6:50 pm

1 stop13h 35m

$653

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/17

Best time to book a flight from Portland to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Brussels

What is the cheapest month to book a flight from Portland, Maine to Brussels?

Currently, May is the cheapest month in which you can book a flight from Portland, Maine to Brussels (average of $362). Flying from Portland, Maine to Brussels in July is currently the most expensive (average of $473). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brussels. Reviews last updated October 20, 2025.
See what other customers who have flown with United Airlines from Portland to Brussels have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,991 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Portland to Brussels. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Brussels?

    Portland (PWM) is the airport you will fly out of if you book a flight from Portland to Brussels. You should not have trouble finding flights to Brussels from Portland; the airport handles an average of 0 outbound flights to Brussels per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Portland airport to Brussels. It is only a 2.9 mi journey to Portland (PWM) from Portland’s city center.

  • How long is the flight from Portland, Maine to Brussels?

    Airlines like Delta and United Airlines fly from Portland, Maine to Brussels in about 16h 15m. The time it takes to get you to your destination can typically vary by up to 2h 50m. The distance between Portland, Maine and Brussels is about 3387 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Portland, Maine to Brussels round-trip?

    Our cheapest airline available from Portland, Maine to Brussels is United Airlines. Our recent data shows that you can find tickets from as low as $650 on this airline.

  • Can I find deals for flights from Portland to Brussels that include hotel bookings?

    Yes. In addition to deals on Portland to Brussels flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Brussels?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Brussels.

  • Can I find deals for business class flights from Portland to Brussels?

    Yes. Cheapflights offers flight deals from Portland to Brussels by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Brussels?

    Currently, May is the cheapest month in which you can book a flight from Portland, Maine to Brussels (average of $362). Flying from Portland, Maine to Brussels in July is currently the most expensive (average of $473). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Portland to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Bruxelles-National flights
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Portland to Bruxelles-National flights
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Top airline flying from Portland to Brussels

Discover the top airline that operate flights from Portland to Brussels. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$650Average$1,663FlexibilityNo cancel feeOn-time69%

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