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Cheap flights from Portland to Belfast from £246

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 29/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Multiple Airlines Logo
15:30 - 23:20
PDX
-
BFS
23h 50m
3 stops
Multiple Airlines Logo
20:15 - 11:45
BFS
-
PDX
47h 30m
3 stops
£649Multiple Airlines
화, 2 6월 - 화, 9 6월
British Airways Logo
19:30 - 18:45
PDX
-
BHD
15h 15m
1 stop
British Airways Logo
16:15 - 17:40
BHD
-
PDX
33h 25m
1 stop
£706British Airways
일, 20 9월 - 토, 3 10월
Multiple Airlines Logo
15:30 - 19:40
PDX
-
BFS
20h 10m
2 stops
Multiple Airlines Logo
07:00 - 13:50
BFS
-
PDX
38h 50m
3 stops
£721Multiple Airlines
화, 2 6월 - 화, 9 6월
Multiple Airlines Logo
19:30 - 18:45
PDX
-
BHD
15h 15m
1 stop
Multiple Airlines Logo
07:05 - 21:57
BHD
-
PDX
22h 52m
2 stops
£723Multiple Airlines
일, 20 9월 - 토, 3 10월
British Airways Logo
12:32 - 10:30
PDX
-
BHD
37h 58m
2 stops
British Airways Logo
19:05 - 17:40
BHD
-
PDX
30h 35m
1 stop
£743British Airways
토, 19 9월 - 토, 3 10월
British Airways Logo
19:30 - 18:15
PDX
-
BHD
14h 45m
1 stop
British Airways Logo
19:05 - 17:40
BHD
-
PDX
30h 35m
1 stop
£761British Airways
토, 19 9월 - 토, 3 10월
British Airways Logo
12:32 - 10:30
PDX
-
BHD
37h 58m
2 stops
British Airways Logo
19:05 - 22:50
BHD
-
PDX
35h 45m
2 stops
£769British Airways
토, 19 9월 - 토, 3 10월
KLM Logo
07:00 - 09:20
PDX
-
BHD
18h 20m
2 stops
KLM Logo
17:30 - 11:10
BHD
-
PDX
25h 40m
1 stop
£783KLM
화, 14 7월 - 화, 21 7월
Virgin Atlantic Logo
13:05 - 16:55
PDX
-
BHD
19h 50m
1 stop
Virgin Atlantic Logo
17:30 - 11:10
BHD
-
PDX
25h 40m
1 stop
£794Virgin Atlantic
금, 1 5월 - 화, 2 6월
KLM Logo
13:32 - 16:55
PDX
-
BHD
19h 23m
2 stops
KLM Logo
09:50 - 11:10
BHD
-
PDX
33h 20m
1 stop
£797KLM
금, 1 5월 - 화, 2 6월

British Airways flights from Portland to Belfast

Our best British Airways deals on Portland to Belfast flight tickets
British Airways
20 Sept
PDX19:30Portland
15h 15m
1 stop
BHD18:45Belfast City
3 Oct
BHD16:15Belfast City
33h 25m
1 stop
PDX17:40Portland
£706
British Airways
19 Sept
PDX12:32Portland
37h 58m
2 stops
BHD10:30Belfast City
3 Oct
BHD19:05Belfast City
30h 35m
1 stop
PDX17:40Portland
£743
British Airways
19 Sept
PDX19:30Portland
14h 45m
1 stop
BHD18:15Belfast City
3 Oct
BHD19:05Belfast City
30h 35m
1 stop
PDX17:40Portland
£761

Virgin Atlantic flights from Portland to Belfast

Our best Virgin Atlantic deals on Portland to Belfast flight tickets
Virgin Atlantic
1 May
PDX13:05Portland
19h 50m
1 stop
BHD16:55Belfast City
2 Jun
BHD17:30Belfast City
25h 40m
1 stop
PDX11:10Portland
£794
Virgin Atlantic
13 Jul
PDX13:05Portland
12h 15m
1 stop
BHD09:20Belfast City
21 Jul
BHD17:30Belfast City
25h 40m
1 stop
PDX11:10Portland
£868

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 20 4월 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 - BFS

PDXBFS

Portland

화 2/6

15:30-23:20

3 stops23h 50m

Belfast Intl

화 9/6

20:15-11:45

3 stops47h 30m

£649

PortlandBelfast

PDX - BHD

PDXBHD

Portland

일 20/9

19:30-18:45

1 stop15h 15m

Belfast City

토 3/10

16:15-17:40

1 stop33h 25m

£706

PortlandBelfast

PDX - BFS

PDXBFS

Portland

화 2/6

15:30-19:40

2 stops20h 10m

Belfast Intl

화 9/6

07:00-13:50

3 stops38h 50m

£721
Fastest return journey

PortlandBelfast

PDX - BHD

PDXBHD

Portland

일 20/9

19:30-18:45

1 stop15h 15m

Belfast City

토 3/10

07:05-21:57

2 stops22h 52m

£723

PortlandBelfast

PDX - BHD

PDXBHD

Portland

토 19/9

12:32-10:30

2 stops37h 58m

Belfast City

토 3/10

19:05-17:40

1 stop30h 35m

£743

PortlandBelfast

PDX - BHD

PDXBHD

Portland

토 19/9

19:30-18:15

1 stop14h 45m

Belfast City

토 3/10

19:05-17:40

1 stop30h 35m

£761

PortlandBelfast

PDX - BHD

PDXBHD

Portland

토 19/9

12:32-10:30

2 stops37h 58m

Belfast City

토 3/10

19:05-22:50

2 stops35h 45m

£769

PortlandBelfast

PDX - BHD

PDXBHD

Portland

화 14/7

07:00-09:20

2 stops18h 20m

Belfast City

화 21/7

17:30-11:10

1 stop25h 40m

£783

PortlandBelfast

PDX - BHD

PDXBHD

Portland

금 1/5

13:05-16:55

1 stop19h 50m

Belfast City

화 2/6

17:30-11:10

1 stop25h 40m

£794

PortlandBelfast

PDX - BHD

PDXBHD

Portland

금 1/5

13:32-16:55

2 stops19h 23m

Belfast City

화 2/6

09:50-11:10

1 stop33h 20m

£797

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 15m

Direct flights

None
The fastest flight from Portland to Belfast takes 12h 15m
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 15m, 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