$674 Find Cheap Flights from Portland to Belfast

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Belfast departing on 1/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Belfast, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Belfast, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$674
British Airways
Mon 1/5Mon 1/12
PDX - BHD • 1 stop
Cheapest one-way
Multiple Airlines
Thu 10/30
PDX - BF1 • multi-stop
Top airlines
British Airways
Cheapest • from $674 (round-trip)
British Airways
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Belfast (PDX-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Belfast 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 Belfast

Mon, Jan 5 - Mon, Jan 12
British Airways Logo
5:45 pm - 4:05 pmPDX-BHD
14h 20m1 stop
British Airways Logo
6:35 am - 3:55 pmBHD-PDX
17h 20m1 stop
$674British Airways
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Wed, Dec 3 - Wed, Dec 10
British Airways Logo
5:45 pm - 2:15 pmPDX-BHD
12h 30m1 stop
British Airways Logo
11:25 am - 11:23 pmBHD-PDX
19h 58m2 stops
$677British Airways
Find Deal
Wed, Dec 3 - Wed, Dec 10
Delta Logo
1:25 pm - 9:00 pmPDX-BHD
23h 35m1 stop
Delta Logo
6:30 am - 11:25 amBHD-PDX
12h 55m1 stop
$684Delta
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Mon, Apr 6 - Mon, Apr 13
British Airways Logo
7:30 pm - 5:30 pmPDX-BHD
14h 00m1 stop
British Airways Logo
9:50 am - 5:40 pmBHD-PDX
15h 50m1 stop
$700British Airways
Find Deal
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
1:38 pm - 4:55 pmPDX-BHD
19h 17m2 stops
Multiple Airlines Logo
5:25 pm - 11:20 amBHD-PDX
25h 55m1 stop
$714Multiple Airlines
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Sun, Apr 19 - Sat, May 2
American Airlines Logo
3:18 pm - 6:45 pmPDX-BHD
19h 27m2 stops
American Airlines Logo
7:05 am - 7:21 pmBHD-PDX
20h 16m2 stops
$724American Airlines
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Wed, Dec 3 - Wed, Dec 10
Delta Logo
11:54 am - 9:00 pmPDX-BHD
25h 06m2 stops
Delta Logo
6:30 am - 3:33 pmBHD-PDX
17h 03m2 stops
$798Delta
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Fri, Apr 3 - Tue, Apr 7
Virgin Atlantic Logo
6:04 am - 9:20 pmPDX-BHD
31h 16m2 stops
Virgin Atlantic Logo
5:25 pm - 11:20 amBHD-PDX
25h 55m1 stop
$804Virgin Atlantic
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Sun, Mar 1 - Thu, Mar 5
Virgin Atlantic Logo
11:10 am - 4:50 pmPDX-BHD
21h 40m2 stops
Virgin Atlantic Logo
5:20 pm - 11:25 amBHD-PDX
26h 05m1 stop
$808Virgin Atlantic
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Sun, Apr 19 - Sat, May 2
Multiple Airlines Logo
3:15 pm - 9:50 pmPDX-BFS
22h 35m3 stops
Multiple Airlines Logo
4:40 pm - 5:40 pmBFS-PDX
33h 00m3 stops
$1,211Multiple Airlines
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Booking Insights

KAYAK's insights & trends for Portland to Belfast flights

Get data-powered insights and trends into flights from Portland to Belfast to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Portland to Belfast?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Portland to Belfast were found on British Airways ($674) and Delta ($684).

Which airlines fly non-stop between Portland and Belfast?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Portland to Belfast.

There is just one airline that flies from Portland to Belfast direct and that is British Airways. The best round-trip deal found from British Airways for the route is $659.

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Good to know

Cheapest flight$674
Flight from Portland to Belfast City Airport

When to book flights from Portland to Belfast

Are your dates flexible? Find out the best times to travel from Portland to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Belfast

  • What is the cheapest flight from Portland to Belfast?

    In the last 3 days, the lowest price for a flight from Portland to Belfast was $674 for a round-trip ticket.

  • Do I need a passport to fly between Portland and Belfast?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Portland and on arrival in Belfast.

  • Which aircraft models fly most regularly from Portland to Belfast?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Belfast?

    oneworld is the only airline alliance operating flights between Portland and Belfast.

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

    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 Belfast.

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

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

    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 to Belfast with an airline and back to Portland with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Belfast?

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

Reviews of the top airline flying from Portland to Belfast

 
See real verified KAYAK customer reviews for airlines flying from Portland to Belfast. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Belfast? 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.
6.7
British AirwaysOverall score based on 7485 reviews
7.6Crew
6.9Boarding
6.7Comfort
6.4Entertainment
6.3Food
Airline reviews

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

10.0 Excellentshamarcus, Oct 2025SEA - LHR
Read more British Airways reviews

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

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.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

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

Information on your arrival and departure airports

Portland (PDX)

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