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Cheap flights from Porto to Castletown from £444

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — IOM
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Porto to Castletown

Enter your travel dates to find the best prices.

Best flights from Porto to Castletown
Discover carefully curated flight deals from Porto to Castletown that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 November 2025.

Mon 30/318:55OPO - IOM
2 stops20h 30mKLM
Sat 4/412:05IOM - OPO
2 stops22h 35mKLM
Deal found 6/11£444
Sat 28/319:50OPO - IOM
1 stop23h 20mBritish Airways
Wed 8/406:50IOM - OPO
1 stop26h 15mBritish Airways
Deal found 6/11£498
Mon 30/321:10OPO - IOM
1 stop23h 00mBritish Airways
Fri 3/416:50IOM - OPO
1 stop17h 00mBritish Airways
Deal found 6/11£498
Mon 30/318:55OPO - IOM
2 stops20h 30mKLM
Mon 6/411:40IOM - OPO
2 stops23h 00mKLM
Deal found 6/11£521
Mon 30/318:55OPO - IOM
2 stops20h 30mKLM
Sun 5/413:10IOM - OPO
2 stops9h 05mKLM
Deal found 6/11£521
Sat 28/319:50OPO - IOM
1 stop23h 20mBritish Airways
Sun 5/416:50IOM - OPO
1 stop18h 00mBritish Airways
Deal found 6/11£539
Sun 29/318:55OPO - IOM
2 stops20h 35mKLM
Sat 4/412:05IOM - OPO
2 stops22h 35mKLM
Deal found 6/11£526
Sat 28/306:00OPO - IOM
2 stops10h 10mKLM
Sat 4/412:05IOM - OPO
2 stops22h 35mKLM
Deal found 6/11£562
Sun 29/318:55OPO - IOM
2 stops20h 35mKLM
Mon 6/411:40IOM - OPO
2 stops23h 00mKLM
Deal found 6/11£603
Sat 28/306:00OPO - IOM
2 stops10h 10mKLM
Sun 5/413:10IOM - OPO
2 stops9h 05mKLM
Deal found 6/11£638
Sat 28/306:00OPO - IOM
2 stops10h 10mKLM
Mon 6/411:40IOM - OPO
2 stops23h 00mKLM
Deal found 6/11£638

Cheap flight deals from Porto to Castletown

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Castletown (IOM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 November 2025.

Round-trip from

£444
KLM
  • KLM
  • 30/3-4/4
  • 4 total stops
  • 43h 05m total
  • Porto to Castletown
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Porto to Castletown 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, Cheapflights users made 858,174 searches. Data last updated 7 November 2025.
Use the filters below to find and compare flights from Porto to Castletown that are best for you.

Fly from

Porto

Fly to

Castletown

Route

Depart

Return

Price

PortoCastletown

OPO - IOM

OPOIOM

Porto

Mon 30/3

18:55-15:25

2 stops20h 30m

Castletown Ronaldsway

Sat 4/4

12:05-10:40

2 stops22h 35m

£444

PortoCastletown

OPO - IOM

OPOIOM

Porto

Sat 28/3

19:50-19:10

1 stop23h 20m

Castletown Ronaldsway

Wed 8/4

06:50-09:05

1 stop26h 15m

£498

PortoCastletown

OPO - IOM

OPOIOM

Porto

Mon 30/3

21:10-20:10

1 stop23h 00m

Castletown Ronaldsway

Fri 3/4

16:50-09:50

1 stop17h 00m

£498

PortoCastletown

OPO - IOM

OPOIOM

Porto

Mon 30/3

18:55-15:25

2 stops20h 30m

Castletown Ronaldsway

Mon 6/4

11:40-10:40

2 stops23h 00m

£521

PortoCastletown

OPO - IOM

OPOIOM

Porto

Mon 30/3

18:55-15:25

2 stops20h 30m

Castletown Ronaldsway

Sun 5/4

13:10-22:15

2 stops9h 05m

£521

PortoCastletown

OPO - IOM

OPOIOM

Porto

Sun 29/3

18:55-15:30

2 stops20h 35m

Castletown Ronaldsway

Sat 4/4

12:05-10:40

2 stops22h 35m

£526

PortoCastletown

OPO - IOM

OPOIOM

Porto

Sat 28/3

19:50-19:10

1 stop23h 20m

Castletown Ronaldsway

Sun 5/4

16:50-10:50

1 stop18h 00m

£539

PortoCastletown

OPO - IOM

OPOIOM

Porto

Sat 28/3

06:00-16:10

2 stops10h 10m

Castletown Ronaldsway

Sat 4/4

12:05-10:40

2 stops22h 35m

£562

PortoCastletown

OPO - IOM

OPOIOM

Porto

Sun 29/3

18:55-15:30

2 stops20h 35m

Castletown Ronaldsway

Mon 6/4

11:40-10:40

2 stops23h 00m

£603

PortoCastletown

OPO - IOM

OPOIOM

Porto

Sat 28/3

06:00-16:10

2 stops10h 10m

Castletown Ronaldsway

Sun 5/4

13:10-22:15

2 stops9h 05m

£638

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 11 results
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Best time to book a flight from Porto to Castletown

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

Related info for your journey

Find useful and relevant information for your journey from Porto to Castletown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Porto to Castletown?

    Airlines like KLM and British Airways fly from Porto to Castletown in about 20h 30m. The time it takes to get you to your destination can typically vary by up to 2h 50m. Porto and Castletown are separated by a distance of 906 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Porto to Castletown that include hotel bookings?

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

  • How can I find direct flights from Porto to Castletown?

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

  • Can I find deals for business class flights from Porto to Castletown?

    Yes. Cheapflights offers flight deals from Porto to Castletown 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

Travelling to a place near Castletown?

Book flights to Castletown if you plan to visit one of these locations
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How does Cheapflights help users find flights from Porto to Castletown?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Porto to Castletown. 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 Castletown?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Porto to Castletown.

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

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

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

Not ready to book yet? You can track prices for flights from Porto to Castletown on Cheapflights with our Price Alert feature and get notified when better prices are available.

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