HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belfast

$411+ Cheap flights from Portland (PDX) to Belfast

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BHD
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Belfast with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Belfast (BF1). 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 July 3, 2025.

Round-trip from

$680
(Expedia)

One-way from

$411
(Justfly.com)
From Portland to Belfast
Search Deals
One-way flight from Portland to Belfast
Search Deals

Find flight deals from Portland to Belfast

Cheapest flights from Portland to Belfast
Explore the most affordable flight options available from Portland to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Expedia deal was found by Cheapflights users on 7/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/101:20 pmPDX - BHD
2 stops17h 20mBritish Airways
Mon 8/257:30 pmBHD - PDX
2 stops29h 18mBritish Airways
Deal found 7/2$680
This Trip.com deal was found by Cheapflights users on 7/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/273:20 pmPDX - BFS
2 stops20h 10mMultiple Airlines
Fri 10/37:05 amBFS - PDX
2 stops18h 50mMultiple Airlines
Deal found 7/1$702
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/237:00 amPDX - BHD
2 stops19h 10mMultiple Airlines
Sun 8/316:50 amBHD - PDX
2 stops17h 13mMultiple Airlines
Deal found 7/1$717
This KLM deal was found by Cheapflights users on 7/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:40 pmPDX - BHD
2 stops19h 15mKLM
Thu 10/95:25 pmBHD - PDX
1 stop25h 40mKLM
Deal found 7/2$744
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:46 pmPDX - BHD
2 stops23h 29mDelta
Wed 9/176:30 amBHD - PDX
2 stops17h 21mDelta
Deal found 7/1$754
This Gurufare deal was found by Cheapflights users on 7/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/277:00 amPDX - BHD
2 stops19h 10mIberia
Fri 10/34:20 pmBHD - PDX
2 stops37h 07mIberia
Deal found 7/1$954

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Belfast 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 July 3, 2025.
Use the filters below to find and compare flights from Portland to Belfast that are best for you.

Fly from

Portland

Fly to

Belfast

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sun 8/10

1:20 pm-2:40 pm

2 stops17h 20m

Belfast City

Mon 8/25

7:30 pm-4:48 pm

2 stops29h 18m

$680

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Sat 9/27

3:20 pm-7:30 pm

2 stops20h 10m

Belfast Intl

Fri 10/3

7:05 am-5:55 pm

2 stops18h 50m

$702

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

7:00 am-10:10 am

2 stops19h 10m

Belfast City

Sun 8/31

6:50 am-4:03 pm

2 stops17h 13m

$717

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 10/1

1:40 pm-4:55 pm

2 stops19h 15m

Belfast City

Thu 10/9

5:25 pm-11:05 am

1 stop25h 40m

$744

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 9/10

1:46 pm-9:15 pm

2 stops23h 29m

Belfast City

Wed 9/17

6:30 am-3:51 pm

2 stops17h 21m

$754

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 9/27

7:00 am-10:10 am

2 stops19h 10m

Belfast City

Fri 10/3

4:20 pm-9:27 pm

2 stops37h 07m

$954

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

1:20 pm-3:05 pm

2 stops17h 45m

$411

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

1:15 pm-4:55 pm

1 stop19h 40m

$627

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 8/23

1:15 pm-9:15 pm

1 stop24h 00m

$628

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Best time to book a flight from Portland to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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 Belfast

What is the cheapest time of day to fly from PDX to BFS?

Find hourly flight availability from Portland to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

It’s optimal to fly from Portland to Belfast at noon. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Air France from Portland to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,473 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Iberia
7.0
Good
2,819 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.6
Okay
7,093 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Portland to Belfast. 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 Belfast?

    For a flight from Portland to Belfast, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 0 outbound flights to Belfast per day. 2 airlines have flights to Belfast from Portland on a regular basis.

  • What are the cheapest airlines flying from Portland to Belfast round-trip?

    Flying on British Airways is currently your cheapest option to Belfast, with prices starting at $680. Additional round-trip tickets that might be worth considering are offered by KLM and Delta, with the lowest prices starting at $744 and $754, respectively.

  • What are the cheapest airlines to fly from Portland to Belfast one-way?

    One-way options have recently been found by users for as low as $411 on British Airways. Other airlines that offer cheap prices include Air France from $627 and KLM from $628 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Belfast 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 to Belfast?

    Currently, February is the cheapest month in which you can book a flight from Portland to Belfast (average of $657). Flying from Portland to Belfast in June is currently the most expensive (average of $1,189). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Belfast Intl flights
Portland to Belfast City flights

Top 2 airlines flying from Portland to Belfast

Discover the top 2 airlines that operate flights from Portland to Belfast. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$638Average$732FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$658Average$847FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.