$318 Find Cheap Flights from Portland to Belfast

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 Belfast departing on 5/1. 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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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$841
Multiple Airlines
Wed 8/5Wed 8/12
PDX - BHD • 2 stops
Cheapest one-way
$396
Multiple Airlines
Fri 5/1
PDX - BFS • 3 stops
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We hope you love your trip to Belfast!
Flight Deals
Useful Info
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

Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
1:45 pm - 3:40 pm
PDX
-
BHD
17h 55m
2 stops
Multiple Airlines Logo
10:05 am - 9:17 pm
BHD
-
PDX
19h 12m
2 stops
$841Multiple Airlines
Sun, Apr 12 - Mon, Apr 20
British Airways Logo
7:30 pm - 6:45 pm
PDX
-
BHD
15h 15m
1 stop
British Airways Logo
7:35 pm - 5:40 pm
BHD
-
PDX
30h 05m
1 stop
$861British Airways
Wed, Aug 5 - Wed, Aug 12
British Airways Logo
7:30 pm - 7:50 pm
PDX
-
BHD
16h 20m
1 stop
British Airways Logo
10:05 am - 9:42 pm
BHD
-
PDX
19h 37m
2 stops
$865British Airways
Sun, Apr 12 - Mon, Apr 20
Multiple Airlines Logo
7:30 pm - 6:45 pm
PDX
-
BHD
15h 15m
1 stop
Multiple Airlines Logo
9:40 am - 9:38 pm
BHD
-
PDX
19h 58m
2 stops
$874Multiple Airlines
Sun, Apr 12 - Mon, Apr 20
British Airways Logo
6:22 am - 6:45 pm
PDX
-
BHD
28h 23m
2 stops
British Airways Logo
6:30 pm - 10:56 pm
BHD
-
PDX
36h 26m
2 stops
$904British Airways
Fri, Aug 21 - Tue, Aug 25
British Airways Logo
7:30 pm - 6:10 pm
PDX
-
BHD
14h 40m
1 stop
British Airways Logo
6:20 pm - 5:40 pm
BHD
-
PDX
31h 20m
1 stop
$916British Airways
Fri, Aug 21 - Tue, Aug 25
British Airways Logo
7:30 pm - 6:10 pm
PDX
-
BHD
14h 40m
1 stop
British Airways Logo
7:30 pm - 5:40 pm
BHD
-
PDX
30h 10m
1 stop
$917British Airways
Fri, Aug 21 - Tue, Aug 25
British Airways Logo
7:30 pm - 6:10 pm
PDX
-
BHD
14h 40m
1 stop
British Airways Logo
8:25 pm - 5:40 pm
BHD
-
PDX
29h 15m
1 stop
$918British Airways
Wed, Aug 5 - Wed, Aug 12
British Airways Logo
7:30 pm - 7:50 pm
PDX
-
BHD
16h 20m
1 stop
British Airways Logo
11:35 am - 5:40 pm
BHD
-
PDX
14h 05m
1 stop
$966British Airways
Wed, Jul 15 - Thu, Jul 23
British Airways Logo
7:30 pm - 6:45 pm
PDX
-
BHD
15h 15m
1 stop
British Airways Logo
7:30 pm - 9:32 pm
BHD
-
PDX
34h 02m
2 stops
$995British Airways
Useful Info

Good to know

Cheapest flight$396
Flight from Portland to Belfast Intl 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 $318 for a one-way ticket and $841 for a round-trip.

  • 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 7797 reviews
6.4Entertainment
6.8Comfort
6.9Boarding
6.4Food
7.6Crew
Airline reviews

Very please with the seating that the Kayak staff booked for us!

10.0 ExcellentAimee, Mar 2026
ATL - LHR
Read more British Airways reviews

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

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

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.

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

Information on your arrival and departure airports

Portland (PDX)