How long is the flight from Shannon, Clare to Porto?

Departing from Shannon, Clare to Porto will take you 21h 10m. Shannon, Clare and Porto are separated by a distance of 791 mi.

In terms of precipitation, rainfall in Porto ranges from 18.0 - 195.0 inches per month. December is typically the wettest month, when rainfall can reach 195.0 mm. July is typically the driest time to visit Porto when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Porto, 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 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

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

When flying from Shannon, Clare to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Shannon to Porto?

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

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

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

£399+ Cheap Flights from Shannon to Porto

Cheap flight deals from Shannon to Porto

Enter your travel dates to find the best prices.

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Last-minute

One-way

Cheapest flights from Shannon to Porto
Explore the most affordable flight options available from Shannon to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Thu 3/1220:05 -

1 stop21h 10m

Sun 6/1220:05 -

1 stop15h 25m

Deal found 12/11£399

Thu 3/1207:50 -

2 stops8h 10m

Sun 6/1220:05 -

1 stop23h 20m

Deal found 12/11£602

Sun 22/1120:05 -

1 stop20h 40m

Tue 1/1220:40 -

2 stops22h 45m

Deal found 9/11£865

Wed 25/1117:30 -

1 stop23h 20m

Tue 1/1220:40 -

2 stops22h 45m

Deal found 9/11£882

Sun 22/1117:30 -

1 stop23h 15m

Sun 6/1220:05 -

1 stop23h 20m

Deal found 9/11£884

Find flight deals from Shannon to Porto

Round-trip from	£399

British Airways
3/12-6/12
2 total stops
36h 35m total
Shannon to Porto

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Thu 3/12

20:05-17:15

1 stop21h 10m

Porto

Sun 6/12

20:05-11:30

1 stop15h 25m

£399

Fastest return journey

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Mon 30/11

07:50-16:45

1 stop8h 55m

Porto

Wed 31/12

00:00-00:00

Nonstop0h 00m

£424

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Mon 23/11

07:50-16:45

1 stop8h 55m

Porto

Wed 31/12

00:00-00:00

Nonstop0h 00m

£424

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Thu 26/11

20:05-17:15

1 stop21h 10m

Porto

Wed 31/12

00:00-00:00

Nonstop0h 00m

£424

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Sun 29/11

17:30-16:45

1 stop23h 15m

Porto

Wed 31/12

00:00-00:00

Nonstop0h 00m

£424

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Fri 27/11

07:50-17:15

1 stop9h 25m

Porto

Wed 31/12

00:00-00:00

Nonstop0h 00m

£424

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Thu 3/12

07:50-16:00

2 stops8h 10m

Porto

Sun 6/12

20:05-19:25

1 stop23h 20m

£602

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Wed 25/11

17:30-16:50

1 stop23h 20m

Porto

Tue 1/12

20:40-19:25

2 stops22h 45m

£882

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Sat 28/11

17:10-19:15

1 stop26h 05m

Porto

Mon 7/12

17:35-19:25

1 stop25h 50m

£884

ShannonPorto

SNN Shannon - OPO Porto

SNNOPO

Shannon

Sun 22/11

17:30-16:45

1 stop23h 15m

Porto

Mon 7/12

17:35-11:30

1 stop17h 55m

£884

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Shannon to Porto

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

SNN-OPO

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

How long is the flight from Shannon, Clare to Porto?
Departing from Shannon, Clare to Porto will take you 21h 10m. Shannon, Clare and Porto are separated by a distance of 791 mi.
Can I find deals for flights from Shannon to Porto that include hotel bookings?
Yes. In addition to deals on Shannon to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Shannon to Porto?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to Porto.
Can I find deals for business class flights from Shannon to Porto?
Yes. Cheapflights offers flight deals from Shannon to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

Certainly. Search results for flights to Porto from Shannon 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 Shannon to Porto become cheaper?

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Cheap flights from Shannon to Porto from £399

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Shannon to Porto

Cheapest flights from Shannon to PortoExplore the most affordable flight options available from Shannon to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Explore the most affordable flight options available from Shannon to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Best flights from Shannon to PortoDiscover carefully curated flight deals from Shannon to Porto that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Discover carefully curated flight deals from Shannon to Porto that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Last-minute flights from Shannon to PortoDiscover last-minute flight deals from Shannon to Porto. Data last updated 12 November 2026 and is based on user searches.

Discover last-minute flight deals from Shannon to Porto. Data last updated 12 November 2026 and is based on user searches.

One-way flights from Shannon to PortoSearch for one-way flight options from Shannon to Porto. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.

Search for one-way flight options from Shannon to Porto. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.

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Best time to book a flight from Shannon to Porto

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

Related info for your journey

How long is the flight from Shannon, Clare to Porto?

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

How can I find direct flights from Shannon to Porto?

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

Travelling to a place near Porto?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Shannon to Porto

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

Complete your trip

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

Direct flights to Portugal

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

Search flights from Shannon to Porto by cabin class

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

Shannon and Porto flights

Browse other Shannon and Porto flight options. Last updated on 12 November 2026.

Other flights from Shannon

Browse through other flights departing from Shannon. Flights are based on user searches made on Cheapflights and were last updated on 12 November 2026.

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Check out other popular destinations found by fellow travellers in 2026

Other flights to Porto

Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 November 2026.

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How does Cheapflights help users find flights from Shannon to Porto?

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

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

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

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Cheapest flights from Shannon to Porto
Explore the most affordable flight options available from Shannon to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Best flights from Shannon to Porto
Discover carefully curated flight deals from Shannon to Porto that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Last-minute flights from Shannon to Porto
Discover last-minute flight deals from Shannon to Porto. Data last updated 12 November 2026 and is based on user searches.

One-way flights from Shannon to Porto
Search for one-way flight options from Shannon to Porto. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.