In terms of precipitation, rainfall in Belfast Intl Airport ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast Intl Airport when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What airport do you fly from for flights from Porto to Belfast Intl?

For a flight from Porto to Belfast Intl, you will be flying from Porto. Porto (OPO) is just 6.8 mi from the center of the city. Porto is the only Porto airport and it handles 0 outbound flights to Belfast Intl per day. 0 airlines have flights to Belfast Intl from Porto on a regular basis.

Can I find deals for flights from Porto to Belfast Intl that include hotel bookings?

Yes. In addition to deals on Porto to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Porto to Belfast Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Belfast Intl.

Can I find deals for business class flights from Porto to Belfast Intl?

Yes. Cheapflights offers flight deals from Porto to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£44+ Cheap Flights from Porto to Belfast Intl Airport

Cheap flight deals from Porto to Belfast Intl

Enter your travel dates to find the best prices.

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Cheapest flights from Porto to Belfast Intl
Explore the most affordable flight options available from Porto to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Wed 7/1022:30 -

1 stop10h 40m

Mon 12/1010:30 -

Nonstop2h 30m

Deal found 18/9£78

Fri 16/1006:15 -

1 stop28h 30m

Mon 19/1010:30 -

Nonstop2h 30m

Deal found 17/9£82

Wed 14/1022:30 -

1 stop14h 05m

Wed 21/1009:55 -

1 stop11h 40m

Deal found 16/9£84

Fri 9/1006:15 -

1 stop16h 45m

Mon 12/1010:30 -

Nonstop2h 30m

Deal found 18/9£87

Thu 8/1011:30 -

1 stop6h 25m

Mon 12/1010:30 -

Nonstop2h 30m

Deal found 18/9£89

Find flight deals from Porto to Belfast Intl

Round-trip from	£78
One-way from	£44

Ryanair
7/10-12/10
1 total stop
13h 10m total
Porto to Belfast

Search Deals

14/10-31/12
1 total stop
10h 40m total
Porto to Belfast

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Porto to Belfast Intl Airport that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Sun 15/11

22:00-06:55

1 stop8h 55m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£46

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Mon 16/11

12:00-08:05

1 stop20h 05m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£49

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Fri 20/11

15:10-19:05

1 stop27h 55m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£52

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Sun 13/12

20:00-09:40

1 stop13h 40m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£52

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Sat 14/11

13:40-13:35

1 stop23h 55m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£54

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Fri 13/11

15:10-19:05

1 stop27h 55m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£55

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Sun 13/12

12:30-06:45

1 stop18h 15m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£55

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Thu 10/12

09:00-07:55

1 stop22h 55m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£56

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Thu 12/11

09:00-19:45

1 stop10h 45m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£56

PortoBelfast

OPO Porto - BFS Belfast Intl

OPOBFS

Porto

Mon 14/12

22:25-08:00

1 stop9h 35m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£56

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 17 resultsSorted by cheapest first

Best time to book a flight from Porto to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Porto with our price prediction graph.

OPO-BFS

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto to Belfast Intl Airport

What is the cheapest time of day to fly from OPO to BFS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Belfast Intl Airport as you normally would.

Related info for your journey

What airport do you fly from for flights from Porto to Belfast Intl?
For a flight from Porto to Belfast Intl, you will be flying from Porto. Porto (OPO) is just 6.8 mi from the center of the city. Porto is the only Porto airport and it handles 0 outbound flights to Belfast Intl per day. 0 airlines have flights to Belfast Intl from Porto on a regular basis.
Can I find deals for flights from Porto to Belfast Intl that include hotel bookings?
Yes. In addition to deals on Porto to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Porto to Belfast Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Belfast Intl.
Can I find deals for business class flights from Porto to Belfast Intl?
Yes. Cheapflights offers flight deals from Porto to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Porto to Belfast Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Porto to Belfast Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Porto to Belfast Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Porto to Belfast Intl with no change fees?

Certainly. Search results for flights to Belfast Intl from Porto shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Cheap flights from Porto to Belfast Intl Airport from £44

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Porto to Belfast Intl

Cheapest flights from Porto to Belfast IntlExplore the most affordable flight options available from Porto to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Explore the most affordable flight options available from Porto to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Porto to Belfast IntlDiscover carefully curated flight deals from Porto to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from Porto to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Direct flights from Porto to Belfast IntlExplore direct flight options from Porto to Belfast Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Explore direct flight options from Porto to Belfast Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Last-minute flights from Porto to Belfast IntlDiscover last-minute flight deals from Porto to Belfast Intl. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from Porto to Belfast Intl. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Porto to Belfast IntlSearch for one-way flight options from Porto to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Search for one-way flight options from Porto to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

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Use the filters below to find and compare flights from Porto to Belfast Intl Airport that are best for you.

Best time to book a flight from Porto to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Porto with our price prediction graph.

Cheapflights Insights

What is the cheapest time of day to fly from OPO to BFS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Belfast Intl Airport as you normally would.

Related info for your journey

What airport do you fly from for flights from Porto to Belfast Intl?

Can I find deals for flights from Porto to Belfast Intl that include hotel bookings?

How can I find direct flights from Porto to Belfast Intl?

Can I find deals for business class flights from Porto to Belfast Intl?

Travelling to a place near Belfast Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Porto to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Belfast Intl

Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.

Complete your trip

Complete your trip to Belfast Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Northern Ireland

Book a non-stop flight to one of these other cities located in Northern Ireland.

Search flights from Porto to Belfast Intl by cabin class

Find flights from Porto to Belfast Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Porto and Belfast Intl flights

Browse other Porto and Belfast Intl flight options. Last updated on 18 September 2026.

Other flights from Porto

Browse through other flights departing from Porto. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.

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How does Cheapflights help users find flights from Porto to Belfast Intl?

Why should you use Cheapflights to find cheap flight tickets from Porto to Belfast Intl?

Can Cheapflights find flights from Porto to Belfast Intl with no change fees?

Can Cheapflights notify me if prices for flights from Porto to Belfast Intl become cheaper?

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Cheapest flights from Porto to Belfast Intl
Explore the most affordable flight options available from Porto to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Porto to Belfast Intl
Discover carefully curated flight deals from Porto to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Direct flights from Porto to Belfast Intl
Explore direct flight options from Porto to Belfast Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Last-minute flights from Porto to Belfast Intl
Discover last-minute flight deals from Porto to Belfast Intl. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Porto to Belfast Intl
Search for one-way flight options from Porto to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.