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Cheap flights from Porto to Knock from €197

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Knock departing on 14/2. 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 Porto to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Ryanair Logo
18:10 - 14:40
OPO
-
NOC
20h 30m2 stops
Ryanair Logo
09:45 - 10:45
NOC
-
OPO
25h 00m2 stops
€197Ryanair
Sat, 14 Feb - Tue, 17 Feb
Multiple Airlines Logo
08:20 - 08:05
OPO
-
NOC
23h 45m2 stops
Multiple Airlines Logo
09:45 - 17:00
NOC
-
OPO
31h 15m3 stops
€217Multiple Airlines
Sat, 14 Feb - Tue, 17 Feb
Ryanair Logo
09:55 - 15:45
OPO
-
NOC
5h 50m1 stop
Ryanair Logo
09:45 - 10:45
NOC
-
OPO
25h 00m2 stops
€243Ryanair
Sat, 14 Feb - Tue, 17 Feb
Multiple Airlines Logo
18:00 - 15:30
OPO
-
NOC
21h 30m3 stops
Multiple Airlines Logo
09:45 - 17:00
NOC
-
OPO
31h 15m3 stops
€245Multiple Airlines
Sat, 14 Feb - Tue, 17 Feb
Ryanair Logo
09:55 - 15:45
OPO
-
NOC
5h 50m1 stop
Ryanair Logo
09:45 - 19:15
NOC
-
OPO
9h 30m1 stop
€359Ryanair
Sat, 14 Feb - Tue, 17 Feb

Ryanair flights from Porto to Knock

Our best Ryanair deals on Porto to Knock flight tickets
Ryanair
14 Feb
OPO18:10Porto
20h 30m
2 stops
NOC14:40Knock Intl
17 Feb
NOC09:45Knock Intl
25h 00m
2 stops
OPO10:45Porto
€197
Find similar
Ryanair
14 Feb
OPO09:55Porto
5h 50m
1 stop
NOC15:45Knock Intl
17 Feb
NOC09:45Knock Intl
25h 00m
2 stops
OPO10:45Porto
€243
Find similar
Ryanair
14 Feb
OPO09:55Porto
5h 50m
1 stop
NOC15:45Knock Intl
17 Feb
NOC09:45Knock Intl
9h 30m
1 stop
OPO19:15Porto
€359
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Porto to Knock 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 13,528 searches. Data last updated 28 December 2025.
Use the filters below to find and compare flights from Porto to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoKnock

OPO - NOC

OPONOC

Porto

Sat 14/2

18:10-14:40

2 stops20h 30m

Knock Intl

Tue 17/2

09:45-10:45

2 stops25h 00m

€197

PortoKnock

OPO - NOC

OPONOC

Porto

Sat 14/2

08:20-08:05

2 stops23h 45m

Knock Intl

Tue 17/2

09:45-17:00

3 stops31h 15m

€217

PortoKnock

OPO - NOC

OPONOC

Porto

Sat 14/2

09:55-15:45

1 stop5h 50m

Knock Intl

Tue 17/2

09:45-10:45

2 stops25h 00m

€243

PortoKnock

OPO - NOC

OPONOC

Porto

Sat 14/2

18:00-15:30

3 stops21h 30m

Knock Intl

Tue 17/2

09:45-17:00

3 stops31h 15m

€245

PortoKnock

OPO - NOC

OPONOC

Porto

Sat 14/2

09:55-15:45

1 stop5h 50m

Knock Intl

Tue 17/2

09:45-19:15

1 stop9h 30m

€359

PortoKnock

OPO - NOC

OPONOC

Porto

Fri 2/1

21:10-15:45

2 stops18h 35m

€200

PortoKnock

OPO - NOC

OPONOC

Porto

Fri 2/1

06:20-13:05

1 stop6h 45m

€203

PortoKnock

OPO - NOC

OPONOC

Porto

Fri 2/1

20:40-17:30

3 stops20h 50m

€283

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Knock from

How to get the cheapest flight ticket from Porto to Knock

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 Porto to Knock Intl?

Ryanair is the most popular carrier operating from Porto to Knock Intl

When to book flights from Porto to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Porto to Knock (OPO to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Knock

Fastest flight time

20h 30m

Direct flights

None
The fastest flight from Porto to Knock takes 20h 30m
There are no direct flights from Porto to Knock. There are no popular flight routes from Porto to Knock.
Search flight deals

  • How far is Porto to Knock Intl by plane?

    The straight-line distance from Porto to Knock Intl is 1403.9 km. A reasonable flight in good conditions will take 20h 30m.

  • When did momondo last update prices for flights from Porto Airport to Knock Intl Airport?

    Prices for flights from Porto Airport to Knock Intl Airport were last updated today.

  • How old do you have to be to fly from Porto Airport to Knock Intl Airport?

    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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Knock Intl Airport.

  • What documentation or ID do you need to fly to Knock Intl Airport?

    The travel and health documents required for your trip to Knock Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Knock Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Sligo
Westport
Carrick-on-Shannon
Belmullet

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Knock?

It is quick and easy to find Porto to Knock 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 Knock that suits you.

Can I find flights from Porto to Knock with flexible booking policies on momondo?

Flights from Porto to Knock with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Porto to Knock?

Once you have performed a search for Porto to Knock flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Porto to Knock 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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