How do I get Price Alerts for flights from Portland to Belfast?

Search flight deals from Portland to Belfast . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Portland to Belfast with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 many operators does momondo search for flights from Portland Airport to Belfast?

The number of operators available for flights from Portland Airport to Belfast is 1 as of January 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Belfast.

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

The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$409 Cheap Flights from Portland to Belfast in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Portland to Belfast

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:45 pm - 4:50 pm

PDX

BHD

15h 05m1 stop

7:25 pm - 4:55 pm

BHD

PDX

28h 30m1 stop

$577British Airways

Sun, Mar 8 - Tue, Mar 17

6:45 pm - 4:35 pm

PDX

BHD

14h 50m1 stop

9:15 am - 4:55 pm

BHD

PDX

14h 40m1 stop

$583British Airways

Wed, Mar 11 - Mon, Mar 16

6:45 pm - 2:15 pm

PDX

BHD

12h 30m1 stop

5:45 pm - 12:20 am

BHD

PDX

37h 35m2 stops

$587British Airways

Wed, Mar 11 - Mon, Mar 16

11:46 am - 2:50 pm

PDX

BHD

20h 04m2 stops

12:25 pm - 12:15 am

BHD

PDX

18h 50m2 stops

$591British Airways

Tue, Mar 10 - Wed, Mar 18

6:45 pm - 2:15 pm

PDX

BHD

12h 30m1 stop

6:35 am - 12:20 am

BHD

PDX

24h 45m2 stops

$599British Airways

Wed, Mar 11 - Tue, Mar 17

5:45 pm - 4:35 pm

PDX

BHD

14h 50m1 stop

9:10 am - 3:55 pm

BHD

PDX

14h 45m1 stop

$602British Airways

Wed, Mar 4 - Sun, Mar 8

12:04 pm - 7:10 pm

PDX

BHD

23h 06m2 stops

6:30 am - 3:55 pm

BHD

PDX

17h 25m1 stop

$606British Airways

Wed, Mar 4 - Sun, Mar 8

6:40 am - 4:35 pm

PDX

BHD

25h 55m2 stops

9:10 am - 3:55 pm

BHD

PDX

14h 45m1 stop

$607British Airways

Wed, Mar 4 - Sun, Mar 8

5:42 pm - 7:10 pm

PDX

BHD

18h 28m2 stops

11:30 am - 12:15 am

BHD

PDX

19h 45m2 stops

$639American Airlines

Wed, Mar 11 - Mon, Mar 16

7:30 pm - 11:05 pm

PDX

BFS

19h 35m2 stops

4:50 pm - 5:40 pm

BFS

PDX

32h 50m2 stops

$821Multiple Airlines

Thu, Apr 9 - Mon, Apr 13

British Airways flights from Portland to Belfast

Our best British Airways deals on Portland to Belfast flight tickets

British Airways

Mar 8

PDX6:45 pmPortland

15h 05m

1 stop

BHD4:50 pmBelfast City

Mar 17

BHD7:25 pmBelfast City

28h 30m

1 stop

PDX4:55 pmPortland

$577

British Airways

Mar 11

PDX6:45 pmPortland

14h 50m

1 stop

BHD4:35 pmBelfast City

Mar 16

BHD9:15 amBelfast City

14h 40m

1 stop

PDX4:55 pmPortland

$583

British Airways

Mar 11

PDX6:45 pmPortland

12h 30m

1 stop

BHD2:15 pmBelfast City

Mar 16

BHD5:45 pmBelfast City

37h 35m

2 stops

PDX12:20 amPortland

$587

American Airlines flights from Portland to Belfast

Our best American Airlines deals on Portland to Belfast flight tickets

American Airlines

Mar 11

PDX5:42 pmPortland

18h 28m

2 stops

BHD7:10 pmBelfast City

Mar 16

BHD11:30 amBelfast City

19h 45m

2 stops

PDX12:15 amPortland

$639

American Airlines

Jan 14

PDX3:22 pmPortland

19h 48m

2 stops

BHD7:10 pmBelfast City

Jan 21

BHD6:35 amBelfast City

17h 20m

1 stop

PDX3:55 pmPortland

$642

Fly from

Fly to

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sun 3/8

6:45 pm-4:50 pm

1 stop15h 05m

Belfast City

Tue 3/17

7:25 pm-4:55 pm

1 stop28h 30m

$577

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/11

6:45 pm-4:35 pm

1 stop14h 50m

Belfast City

Mon 3/16

9:15 am-4:55 pm

1 stop14h 40m

$583

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/11

6:45 pm-2:15 pm

1 stop12h 30m

Belfast City

Mon 3/16

5:45 pm-12:20 am

2 stops37h 35m

$587

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Tue 3/10

11:46 am-2:50 pm

2 stops20h 04m

Belfast City

Wed 3/18

12:25 pm-12:15 am

2 stops18h 50m

$591

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/11

6:45 pm-2:15 pm

1 stop12h 30m

Belfast City

Tue 3/17

6:35 am-12:20 am

2 stops24h 45m

$599

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/4

5:45 pm-4:35 pm

1 stop14h 50m

Belfast City

Sun 3/8

9:10 am-3:55 pm

1 stop14h 45m

$602

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/4

12:04 pm-7:10 pm

2 stops23h 06m

Belfast City

Sun 3/8

6:30 am-3:55 pm

1 stop17h 25m

$606

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/4

6:40 am-4:35 pm

2 stops25h 55m

Belfast City

Sun 3/8

9:10 am-3:55 pm

1 stop14h 45m

$607

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/11

5:42 pm-7:10 pm

2 stops18h 28m

Belfast City

Mon 3/16

11:30 am-12:15 am

2 stops19h 45m

$639

PortlandBelfast

PDX - BFS

PDXBFS

Portland

Thu 4/9

7:30 pm-11:05 pm

2 stops19h 35m

Belfast Intl

Mon 4/13

4:50 pm-5:40 pm

2 stops32h 50m

$821

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first

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	14h 50m
Direct flights	None

The fastest flight from Portland to Belfast takes 14h 50m

There are no direct flights from Portland to Belfast. There are no popular flight routes from Portland to Belfast.

Search flight deals

How far is Portland to Belfast by plane?
The straight-line distance from Portland to Belfast is 4590.7 mi. Typically, this will take 14h 50m by plane in normal conditions.
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 many operators does momondo search for flights from Portland Airport to Belfast?
The number of operators available for flights from Portland Airport to Belfast is 1 as of January 2026.
How old do you have to be to fly from Portland Airport to Belfast?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Belfast.
What documentation or ID do you need to fly to Belfast?
The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portland to Belfast

Compare and see reviews for airlines that fly from Portland to Belfast with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $647	Free Cancellation	Rating 6.7 7,657 reviews		Search British Airways flights

How do I get Price Alerts for flights from Portland to Belfast?
Search flight deals from Portland to Belfast. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Portland to Belfast with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 enables you to select and highlight flights to Belfast from Portland with this policy.

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

momondo helps you find the best flight between Portland and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Belfast from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.