Cheap Flights to Castleknock: Castleknock Flight Deals

View €17 flight on Fri, 23 Jan 2026Opens in a new window

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Cheap round-trip flights to Castleknock

Prices were available within the past 7 days and start at €17 for one-way flights and €34 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Sat, 17 Jan - Sat, 24 Jan
LTN
London
DUB
Dublin
€34 Return, found 3 hours ago
€34
Return
found 3 hours ago
Select Ryanair flight, departing Sat, 17 Jan from London to Dublin, returning Sat, 24 Jan, priced at €34 found 3 hours ago
Aer Lingus
Thu, 22 Jan - Mon, 26 Jan
BHX
Birmingham
DUB
Dublin
€58 Return, just found
€58
Return
just found
Select Aer Lingus flight, departing Thu, 22 Jan from Birmingham to Dublin, returning Mon, 26 Jan, priced at €58 just found
Transavia France
Wed, 18 Feb - Wed, 25 Feb
ORY
Paris
DUB
Dublin
€61 Return, found 2 days ago
€61
Return
found 2 days ago
Select Transavia France flight, departing Wed, 18 Feb from Paris to Dublin, returning Wed, 25 Feb, priced at €61 found 2 days ago
Vueling Airlines
Sat, 17 Jan - Fri, 23 Jan
BCN
Barcelona
DUB
Dublin
€64 Return, found 15 hours ago
€64
Return
found 15 hours ago
Select Vueling Airlines flight, departing Sat, 17 Jan from Barcelona to Dublin, returning Fri, 23 Jan, priced at €64 found 15 hours ago
Iberia
Wed, 21 Jan - Fri, 23 Jan
MAD
Madrid
DUB
Dublin
€73 Return, found 23 hours ago
€73
Return
found 23 hours ago
Select Iberia flight, departing Wed, 21 Jan from Madrid to Dublin, returning Fri, 23 Jan, priced at €73 found 23 hours ago

Find the cheapest month to fly from Columbus (CMH) to Dublin (DUB)

January is typically the cheapest month to fly

From €393 - €1,354 per traveller.

Frequently asked questions

What is the name of Castleknock's airport?
Dublin Airport (DUB) is the main airport that serves Castleknock.
How far is Dublin Airport from central Castleknock?
If you're basing yourself in central Castleknock, you'll be there within moments after flying into Dublin Airport. This terminal is just 10 kilometres from downtown.
What airport is best to fly into Castleknock?
A flight to Castleknock means landing at Dublin Airport (DUB). Jump off the plane, pick up your luggage and you'll be 10 kilometres from the centre of town.
How many airlines fly to Castleknock?
There are 42 airlines that jet into Castleknock from 138 worldwide airports.
Which airlines fly to Castleknock?
Aer Lingus and British Airways are some of the top airlines with flights to Castleknock. Travellers often use London as a departure point with Aer Lingus flying this route the most.
How many nonstop flights are there to Castleknock?
With 1,737 direct flights running each week, you'll be hitting the tarmac in Castleknock before you have time to say, "Are we there yet?"
Where are the most popular flights to Castleknock departing from?
Flights to Castleknock departing from London, Amsterdam and Greater Manchester airports are the most popular.
How long is the flight to Castleknock Airport?
Which city you depart from determines how much of the in-flight entertainment you'll get to see. From London to Castleknock, the average flight time is 1 hour and 19 minutes. From Amsterdam it's more or less 1 hour and 39 minutes, and from Greater Manchester it's 1 hour and 4 minutes.
How to book the cheapest flight to Castleknock?
If you'd like to have some extra spending money on your trip to Castleknock, listen up! As every seasoned jet-setter will tell you, don't book at the very last minute. Fares are usually highest just prior to the departure date. Don't stop there, though. Do some research and check if there are multiple airports at your destination. Ticket prices often differ depending on which airport you pick. Make sure you compare prices across airlines too. Last of all, be prepared to lock in your seat quickly if you stumble on a real bargain. It might not be available for long. With a bit of knowledge and a little luck, the ideal airfare can be yours.
Do you have any tips for my flight to Castleknock?
If you're not prepared, airports and flying can be challenging. But don't hit the panic button just yet. Follow these handy tips for a comfortable start to your time in Castleknock. What to pack in your hand luggage:

  • The trick to having a great flight experience is to be prepared. So, let's start with the essentials: passport, travel documents, cash and any vital medications. Next, take on board items that'll help while away those hours, like some electronic devices or a thrilling novel. You'll also want to bring your chargers, a comfy neck pillow and a pair of earplugs. Last but not least, be sure to toss in toiletry items like a toothbrush, deodorant and a fresh change of clothes.

Do not pack the following items in your hand luggage:

  • Check carefully that you don't have a sharp object hiding in your hand luggage. Other restricted items include flammable or explosive products, like aerosols and matches, and liquids and gels in containers with a capacity of more than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • Comfort should be your main concern when choosing what to wear during your flight. Loose clothing is a sensible option, as are flat, slip-on shoes.
  • Deep vein thrombosis (DVT) is a risk on long-distance flights. It results from blood clotting due to inactivity and poor circulation, so do some gentle leg and foot exercises in your seat and consider wearing compression tights or socks.

How to get through airport security fast when flying to Castleknock?
As seasoned travellers know, the secret is to be organised before you arrive at airport security. That way, you'll be hopping onto that plane to Castleknock in no time flat. Follow these helpful tips and get your trip off to a terrific start:

  • Keep your passport and travel documents close by. They'll be the first things you'll be asked for by security.
  • After that, both you and your carry-on luggage must be X-rayed. To speed things up, take off anything that is likely to set the alarm off. Personal belongings such as your coat, belt and earphones need to go through the machine.
  • All electronic devices, including your laptop and phone, must also be scanned separately.
  • Any liquids or gels, such as perfume or toothpaste, that you want to take on board need to be in containers no larger than 3.4 ounces (100 millilitres). Also, everything must fit inside a quart-size (one litre), zip-lock bag.
  • Lightweight sneakers are a great footwear choice as you're less likely to have to remove them when passing through security. Hiking boots and heavier-style shoes are often subjected to extra screening.
  • Airlines won't allow any sharp items or pocket knives in your carry-on baggage. If you need to bring these kinds of items, put them in your checked luggage.

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Castleknock. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Castleknock. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Castleknock, or are just on the lookout for the best flights to Castleknock, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Castleknock to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Destination airport
Dublin
Destination airport IATA code
DUB
Destination city name
Dublin
Return price
€34

Trending flights to Castleknock

Prices were available within the past 7 days and start at €17 for one-way flights and €34 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Thu, 30 Jul - Tue, 11 Aug
KIR
Killarney
DUB
Dublin
€40 Return, just found
€40
Return
just found
Select Ryanair flight, departing Thu, 30 Jul from Killarney to Dublin, returning Tue, 11 Aug, priced at €40 just found

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