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Cheap flights from Portugal to Knock from €75

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Knock departing on 28/9. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Portugal to Knock

Recent return flight deals from Portugal to Knock

Enter your travel dates to find the best prices.
Ryanair Logo
21:50 - 08:30OPO  Porto-NOC Knock Intl
10h 40m1 stop London Stansted
Ryanair Logo
08:30 - 21:25NOC  Knock Intl-OPO Porto
12h 55m1 stop London Stansted
€131Ryanair
Sat, 26 Sep - Sat, 3 Oct
Ryanair Logo
07:05 - 16:55OPO  Porto-NOC Knock Intl
9h 50m1 stop London Stansted
Ryanair Logo
08:30 - 21:40NOC  Knock Intl-OPO Porto
13h 10m2 stops London Stansted Barcelona-El Prat
€148Ryanair
Sat, 26 Sep - Sat, 3 Oct
Multiple Airlines Logo
06:05 - 08:30OPO  Porto-NOC Knock Intl
26h 25m2 stops Toulouse Blagnac London Stansted
Multiple Airlines Logo
08:30 - 21:40NOC  Knock Intl-OPO Porto
13h 10m2 stops London Stansted Barcelona-El Prat
€158Multiple Airlines
Sat, 26 Sep - Sat, 3 Oct

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Ryanair flights from Portugal to Knock

Our best Ryanair deals on Portugal to Knock flight tickets
Ryanair
26 Sept
OPO21:50Porto
10h 40m
1 stop
NOC08:30Knock Intl
3 Oct
NOC08:30Knock Intl
12h 55m
1 stop
OPO21:25Porto
€131
Ryanair
26 Sept
OPO07:05Porto
9h 50m
1 stop
NOC16:55Knock Intl
3 Oct
NOC08:30Knock Intl
13h 10m
2 stops
OPO21:40Porto
€148
Ryanair
20 Aug
OPO21:45Porto
17h 55m
1 stop
NOC15:40Knock Intl
26 Aug
NOC16:55Knock Intl
4h 45m
1 stop
OPO21:40Porto
€233

momondo Fare Finder

 
Customise your flight search to find flights from Portugal 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 14 August 2026.
Use the filters below to find and compare flights from Portugal to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoKnock

OPO Porto - NOC Knock Intl

OPONOC

Porto

Sat 26/9

21:50-08:30

1 stop10h 40m

Knock Intl

Sat 3/10

08:30-21:25

1 stop12h 55m

€131
Fastest return journey

PortoKnock

OPO Porto - NOC Knock Intl

OPONOC

Porto

Sat 26/9

07:05-16:55

1 stop9h 50m

Knock Intl

Sat 3/10

08:30-21:40

2 stops13h 10m

€148

PortoKnock

OPO Porto - NOC Knock Intl

OPONOC

Porto

Sat 26/9

06:05-08:30

2 stops26h 25m

Knock Intl

Sat 3/10

08:30-21:40

2 stops13h 10m

€158
Cheapest one-way
Fastest single journey

PortoKnock

OPO Porto - NOC Knock Intl

OPONOC

Porto

Mon 28/9

13:55-10:50

2 stops20h 55m

€75

PortoKnock

OPO Porto - NOC Knock Intl

OPONOC

Porto

Mon 28/9

22:30-09:00

3 stops34h 30m

€100

PortoKnock

OPO Porto - NOC Knock Intl

OPONOC

Porto

Mon 28/9

06:45-09:15

1 stop26h 30m

€107

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 Portugal 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

Can stopping save me money on Portugal to Knock flights?

You could potentially save up to 43% on your flight if you consider stops on a Portugal to Knock flight.

Cheap Portugal to Knock flight deals and tips

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

Fastest flight time

10h 40m

Direct flights

None
The fastest flight from Portugal to Knock takes 10h 40m
There are no direct flights from Portugal to Knock. There are no popular flight routes from Portugal to Knock.
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Frequently asked questions about flying from Portugal to Knock

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

    Prices for flights from Portugal to Knock Intl Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Portugal to Knock Intl Airport.

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

    The required travel and health documents for your Knock Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Knock Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Portugal to Knock?

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
Newport

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portugal to Knock. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Portugal to Knock flights to just show those with flexible booking policies.

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

Once all potential Portugal to Knock flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Knock, momondo offers a useful price alert feature which will track prices for flights to Knock from Portugal and alert you when they change.

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