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Cheap flights from Portland to Belfast from £245

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Belfast departing on 27/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Portland to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
18:45 - 14:15
PDX
-
BHD
12h 30m
1 stop
British Airways Logo
18:00 - 15:55
BHD
-
PDX
29h 55m
1 stop
£707British Airways
Wed, 28 Oct - Sat, 7 Nov
British Airways Logo
13:30 - 16:35
PDX
-
BHD
20h 05m
2 stops
British Airways Logo
18:00 - 15:55
BHD
-
PDX
29h 55m
1 stop
£718British Airways
Wed, 28 Oct - Sat, 7 Nov
Multiple Airlines Logo
13:28 - 16:35
PDX
-
BHD
20h 07m
2 stops
Multiple Airlines Logo
11:35 - 21:55
BHD
-
PDX
18h 20m
2 stops
£722Multiple Airlines
Wed, 28 Oct - Sat, 7 Nov
Multiple Airlines Logo
18:45 - 14:15
PDX
-
BHD
12h 30m
1 stop
Multiple Airlines Logo
09:15 - 22:59
BHD
-
PDX
21h 44m
2 stops
£725Multiple Airlines
Wed, 28 Oct - Sat, 7 Nov
British Airways Logo
11:42 - 10:30
PDX
-
BHD
38h 48m
2 stops
British Airways Logo
19:05 - 17:26
BHD
-
PDX
30h 21m
2 stops
£749British Airways
Sat, 17 Oct - Sat, 24 Oct
Delta Logo
13:05 - 09:15
PDX
-
BHD
12h 10m
1 stop
Delta Logo
17:30 - 12:20
BHD
-
PDX
26h 50m
1 stop
£764Delta
Sat, 17 Oct - Sat, 24 Oct
KLM Logo
15:10 - 16:55
PDX
-
BHD
17h 45m
2 stops
KLM Logo
17:30 - 12:20
BHD
-
PDX
26h 50m
1 stop
£768KLM
Sat, 17 Oct - Sat, 24 Oct
British Airways Logo
19:30 - 17:35
PDX
-
BHD
14h 05m
1 stop
British Airways Logo
19:30 - 23:30
BHD
-
PDX
36h 00m
2 stops
£811British Airways
Tue, 14 Jul - Thu, 23 Jul
British Airways Logo
11:26 - 15:20
PDX
-
BHD
19h 54m
2 stops
British Airways Logo
19:30 - 23:30
BHD
-
PDX
36h 00m
2 stops
£829British Airways
Tue, 14 Jul - Thu, 23 Jul
Multiple Airlines Logo
07:00 - 20:20
PDX
-
BFS
30h 20m
3 stops
Multiple Airlines Logo
19:35 - 17:00
BFS
-
PDX
29h 25m
2 stops
£832Multiple Airlines
Wed, 28 Oct - Sat, 7 Nov

Virgin Atlantic flights from Portland to Belfast

Our best Virgin Atlantic deals on Portland to Belfast flight tickets
Virgin Atlantic
1 Jul
PDX13:05Portland
12h 15m
1 stop
BHD09:20Belfast City
9 Jul
BHD17:30Belfast City
25h 40m
1 stop
PDX11:10Portland
£919
Virgin Atlantic
1 Jul
PDX13:05Portland
19h 50m
1 stop
BHD16:55Belfast City
9 Jul
BHD17:30Belfast City
25h 40m
1 stop
PDX11:10Portland
£1,041
Virgin Atlantic
1 Jul
PDX13:05Portland
19h 50m
1 stop
BHD16:55Belfast City
9 Jul
BHD17:30Belfast City
25h 40m
1 stop
PDX11:10Portland
£1,127

British Airways flights from Portland to Belfast

Our best British Airways deals on Portland to Belfast flight tickets
British Airways
28 Oct
PDX18:45Portland
12h 30m
1 stop
BHD14:15Belfast City
7 Nov
BHD18:00Belfast City
29h 55m
1 stop
PDX15:55Portland
£707
British Airways
28 Oct
PDX13:30Portland
20h 05m
2 stops
BHD16:35Belfast City
7 Nov
BHD18:00Belfast City
29h 55m
1 stop
PDX15:55Portland
£718
British Airways
17 Oct
PDX11:42Portland
38h 48m
2 stops
BHD10:30Belfast City
24 Oct
BHD19:05Belfast City
30h 21m
2 stops
PDX17:26Portland
£749

momondo Fare Finder

 
Customise 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, momondo users made 279,928 searches. Data last updated 30 May 2026.
Use the filters below to find and compare flights from Portland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 28/10

18:45-14:15

1 stop12h 30m

Belfast City

Sat 7/11

18:00-15:55

1 stop29h 55m

£707

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 28/10

13:30-16:35

2 stops20h 05m

Belfast City

Sat 7/11

18:00-15:55

1 stop29h 55m

£718

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 28/10

13:28-16:35

2 stops20h 07m

Belfast City

Sat 7/11

11:35-21:55

2 stops18h 20m

£722
Fastest return journey

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 28/10

18:45-14:15

1 stop12h 30m

Belfast City

Sat 7/11

09:15-22:59

2 stops21h 44m

£725

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 17/10

11:42-10:30

2 stops38h 48m

Belfast City

Sat 24/10

19:05-17:26

2 stops30h 21m

£749

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 17/10

13:05-09:15

1 stop12h 10m

Belfast City

Sat 24/10

17:30-12:20

1 stop26h 50m

£764

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 17/10

15:10-16:55

2 stops17h 45m

Belfast City

Sat 24/10

17:30-12:20

1 stop26h 50m

£768

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Tue 14/7

19:30-17:35

1 stop14h 05m

Belfast City

Thu 23/7

19:30-23:30

2 stops36h 00m

£811

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Tue 14/7

11:26-15:20

2 stops19h 54m

Belfast City

Thu 23/7

19:30-23:30

2 stops36h 00m

£829

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Wed 28/10

07:00-20:20

3 stops30h 20m

Belfast Intl

Sat 7/11

19:35-17:00

2 stops29h 25m

£832

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Portland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Portland to Belfast?

British Airways is the most popular carrier operating from Portland to Belfast

Cheap Portland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Belfast

Fastest flight time

12h 30m

Direct flights

None
The fastest flight from Portland to Belfast takes 12h 30m
There are no direct flights from Portland to Belfast. There are no popular flight routes from Portland to Belfast.
Search flight deals

Frequently asked questions about flying from Portland to Belfast

  • How far is Portland to Belfast by plane?

    Belfast is 4590.7 mi away from Portland. Flights usually cover this in 12h 30m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Portland Airport to Belfast?

    Prices for flights from Portland Airport to Belfast are updated daily.

  • How old do you have to be to fly from Portland Airport to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Belfast?

It is quick and easy to find Portland to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

Can I find flights from Portland to Belfast with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Belfast flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Belfast?

Once all potential Portland to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Belfast right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport