Cheap Flights to Castleknock from CA $51

View CA $51 flight on Sun, Nov. 2, 2025Opens in a new window

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How much is the cheapest flight to Castleknock?

Prices were available within the past 7 days and start at CA $51 for one-way flights and CA $126 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Transavia France
Sat, Sep. 13 - Tue, Sep. 16
ORY
Paris
DUB
Dublin
CA $126 Roundtrip, found 2 hours ago
CA $126
Roundtrip
found 2 hours ago
Select Transavia France flight, departing Sat, Sep. 13 from Paris to Dublin, returning Tue, Sep. 16, priced at CA $126 found 2 hours ago
British Airways
Tue, Dec. 9 - Sat, Dec. 13
LHR
London
DUB
Dublin
CA $131 Roundtrip, found 2 days ago
CA $131
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Dec. 9 from London to Dublin, returning Sat, Dec. 13, priced at CA $131 found 2 days ago
Aer Lingus
Tue, Oct. 7 - Sun, Oct. 12
CDG
Paris
DUB
Dublin
CA $154 Roundtrip, found 1 day ago
CA $154
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Tue, Oct. 7 from Paris to Dublin, returning Sun, Oct. 12, priced at CA $154 found 1 day ago
Air France
Sat, Sep. 6 - Tue, Sep. 16
CDG
Paris
DUB
Dublin
CA $217 Roundtrip, found 2 days ago
CA $217
Roundtrip
found 2 days ago
Select Air France flight, departing Sat, Sep. 6 from Paris to Dublin, returning Tue, Sep. 16, priced at CA $217 found 2 days ago
Scandinavian Airlines
Sat, Mar. 21 - Thu, Mar. 26
LHR
London
DUB
Dublin
CA $264 Roundtrip, found 5 days ago
CA $264
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Sat, Mar. 21 from London to Dublin, returning Thu, Mar. 26, priced at CA $264 found 5 days ago

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

November is typically the cheapest month to fly

From CA $695 - CA $1,671 per traveller.

Graph displaying average flight prices per month

Expedia.ca gives you the best tools to secure great deals on flights to Castleknock. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Castleknock. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Castleknock.

Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Castleknock flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Castleknock.

Looking to save even more? Get additional savings by bundling your Castleknock flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Castleknock trip!

Frequently asked questions

What is the name of Castleknock's airport?
Castleknock is served by just one airport, Dublin Airport (DUB).
How far is Dublin Airport (DUB) from central Castleknock?
Dublin Airport (DUB) is within close reach of the centre of the city. You'll find it 10 kilometres from downtown Castleknock.
What airport is best to fly into Castleknock?
With just one major airport operating in Castleknock, it won't take you long to discover the best flight. You'll be taking off to Dublin Airport (DUB), which is located around 10 kilometres from downtown.
How many airlines fly to Castleknock?
Castleknock is serviced by 42 air carriers from 138 airports around the world.
Which airlines fly to Castleknock?
Aer Lingus and British Airways offer the largest proportion of flights to Castleknock. One of the most preferred ways to get there is with an Aer Lingus flight leaving from London.
How many nonstop flights are there to Castleknock?
With 1,737 nonstop flights operating every week, you'll be hitting the tarmac in Castleknock before you can ask, "Are we there yet?"
Where are the most popular flights to Castleknock departing from?
Travellers often set off from London, Amsterdam and Greater Manchester airports when going to Castleknock.
How long is the flight to Castleknock Airport?
If you're going to Castleknock from London, you'll have a flight time of 1 hour and 19 minutes. Those setting off from Amsterdam can expect to be in the air for 1 hour and 39 minutes. From Greater Manchester it's approximately 1 hour and 4 minutes away.
How to book the cheapest flight to Castleknock?
We've all come across those travellers who somehow manage to nab super cheap airfares whenever they fly. Eager to know how to do it for your Castleknock vacation? Don't wait until the last moment to secure your flight. Another great way to pick up the best deal is to compare all options. If your destination has several airports, look into the cost of flying into a smaller terminal. Last but not least, another simple way to save a few dollars is be ready to book at a moment's notice. If you come across an irresistible deal, don't hold off — grab it while you can.
Do you have any tips for my flight to Castleknock?
Depending on where you're coming from, your flight to Castleknock could be simple and straightforward or it could drag on forever. We've put together some useful travel tips that will help you start your next great escape on a positive note. What to pack in your hand luggage:

  • The trick to having a hassle-free travel experience is to plan ahead. So, let's start with the essentials: passport, travel docs, bank cards and important medications. Next, take on board items that'll help pass the time, like some electronic gadgets or a thrilling book. You'll also want to pack your chargers, a neck pillow and a pair of earplugs. And of course, don't forget to toss in toiletry items like a toothbrush, facial wipes and a spare change of clothes.

Do not pack the following items in your hand luggage:

  • Leave all your full-sized bottles of shampoo and conditioner in your checked baggage. Any gels or liquids in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated by security. Sharp or pointed objects, like your treasured pocket knife, and dangerous products which are flammable or explosive, such as aerosols and fuels, are also prohibited.

What to wear on a flight:

  • Choose comfort over style. Prepare for temperature changes by wearing layers, and opt for flat, enclosed shoes like sneakers.
  • Deep vein thrombosis (DVT) is a risk on long-haul flights. It results from blood clotting due to poor circulation and inactivity, so do some gentle foot and leg exercises in your seat and consider wearing compression socks or tights.

How to get through airport security fast when flying to Castleknock?
Being organized before you get to the airport will help make your trip to Castleknock a pleasure. Here are some handy hints for a speedy journey through security:

  • Your passport and boarding pass will need to be inspected by airport security. Have them easily accessible to avoid fumbling around for them.
  • Next up is the X-ray machine. Empty your pockets and remove anything metal that is likely to beep. This includes items like headphones or earphones, as well as heavy jackets or coats. They'll all need to go on the X-ray conveyor belt.
  • For just a few minutes, you'll need to unplug from technology. Your laptop, phone and any other electronic devices will also need to go through the scanner.
  • Can't travel without your favourite hand cream? As long as the volume is no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, you're allowed to bring it with you in your carry-on.
  • There's a possibility that you'll need to remove your shoes for scanning, so wearing lightweight sneakers is always a good idea.
  • Knives and other sharp items can't be taken on board. They'll be confiscated at security, so pack them safely away in your checked bags.

Flights to Castleknock information
Destination airport
Dublin
Destination airport IATA code
DUB
Destination city name
Dublin
Roundtrip price
CA $121

Trending flights to Castleknock

Prices were available within the past 7 days and start at CA $51 for one-way flights and CA $126 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Tue, Sep. 16 - Tue, Sep. 23
YYT
St. John's
DUB
Dublin
CA $427 Roundtrip, found 1 hour ago
CA $427
Roundtrip
found 1 hour ago
Select WestJet flight, departing Tue, Sep. 16 from St. John's to Dublin, returning Tue, Sep. 23, priced at CA $427 found 1 hour ago
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