S$120 Cheap Flights to Castleknock

View S$120 flight on Sat, 15 Nov, 2025Opens in a new window

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Cheap round-trip flights to Castleknock

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, 29 Nov - Tue, 9 Dec
LHR
London
DUB
Dublin
S$173 Return, found 5 days ago
S$173
Return
found 5 days ago
Select British Airways flight, departing Sat, 29 Nov from London to Dublin, returning Tue, 9 Dec, priced at S$173 found 5 days ago
Aer Lingus
Sun, 26 Oct - Sat, 1 Nov
LHR
London
DUB
Dublin
S$226 Return, found 6 days ago
S$226
Return
found 6 days ago
Select Aer Lingus flight, departing Sun, 26 Oct from London to Dublin, returning Sat, 1 Nov, priced at S$226 found 6 days ago
Scandinavian Airlines
Tue, 9 Dec - Fri, 19 Dec
LHR
London
DUB
Dublin
S$289 Return, found 14 hours ago
S$289
Return
found 14 hours ago
Select Scandinavian Airlines flight, departing Tue, 9 Dec from London to Dublin, returning Fri, 19 Dec, priced at S$289 found 14 hours ago
Lufthansa
Sat, 15 Nov - Sat, 22 Nov
FRA
Frankfurt
DUB
Dublin
S$311 Return, found 5 days ago
S$311
Return
found 5 days ago
Select Lufthansa flight, departing Sat, 15 Nov from Frankfurt to Dublin, returning Sat, 22 Nov, priced at S$311 found 5 days ago
KLM
Sat, 15 Nov - Mon, 17 Nov
ZYR
Brussels
DUB
Dublin
S$313 Return, found 3 hours ago
S$313
Return
found 3 hours ago
Select KLM flight, departing Sat, 15 Nov from Brussels to Dublin, returning Mon, 17 Nov, priced at S$313 found 3 hours ago

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

April is typically the cheapest month to fly

From S$636 - S$1,889 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

Book with confidence

Find Your Flights to Castleknock DUB

Cheap flights to Castleknock (DUB)

Get started finding a cheap flight to Castleknock on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport and whether you want a return or one-way airfare. You can filter for flexibility, number of stops, airline and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Castleknock.

Return prices range from S$173 - S$864 and one-ways Castleknock start as low as S$120.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

 

Airlines that fly to Castleknock (DUB)

You have several options for which airline you choose to travel with to Castleknock. There are 10 airlines flying into DUB: British Airways, Aer Lingus, KLM, Air France, Eurowings, Scandinavian Airlines, Lufthansa. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check in a bag or bring hand baggage, it's worth checking whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked in/hand baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.

 

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to Castleknock (DUB) varies throughout the year based on seasonal demand. You’ll see the lowest rates for return trips to DUB in November and in November for one-ways.

 

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Find Your Flights to Castleknock DUB

Travel information

Travel information

Destination airport
Dublin
Destination airport IATA code
DUB
Destination city name
Dublin
Return price
S$172

Trending flights to Castleknock

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Thu, 13 Nov - Sun, 23 Nov
SIN
Singapore
DUB
Dublin
S$864 Return, found 1 day ago
S$864
Return
found 1 day ago
Select Etihad Airways flight, departing Thu, 13 Nov from Singapore to Dublin, returning Sun, 23 Nov, priced at S$864 found 1 day ago

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