Aircoach

Service runs every hour, 24 hours a day, 7 days a week = simplest way to get to the airport (if only getting in and out of town at night were as easy!). Just a shame they don’t do customer loyalty scheme/​bulk buying to save money.
Looking at other reviews — it may be worth noting that this is based on using the 703 bus, and trying to get to a location near Dun Laoghaire (route speeds through the port tunnel and avoids the city centre, so on a good day can take less than 40 mins). For other routes passing through the city centre, the journey isn’t always as efficient/​might not necessarily be the best option available.

Used AirCoach from Airport to Dun Laoghaire, pronounced «Dun-​leery»
Pluses:
* 24-​hour service
* Fast. Reliable. Comfortable seating. On time. Friendly staff and driver
* Cool feature: Bus is automatically lowered for easier luggage loading.
Tip: Wait area at airport is covered but open to cold wind… so stay inside until minutes before scheduled departure at top of hour.
Buy ticket online, keep printout, and save 20%.
Additional discount for purchasing round trip.
PS A prior trip from Airport to Cork I used Irish Rail from Dublin. Next time, I think I will use AirCoach bus instead direct from airport and avoid the extra step getting to the Dublin train station. Exception would be any national holiday when roads are jammed.

The air coach is really unreliable, it came almost a half an hour late and it costs € 13 for a one way ticket. Luckily we left more than enough time to get to the airport on time but you wouldn’t want to be relying on it to make a flight.

20 mins from Blackrock to the airport via the port tunnel. Win!
Very reliable and quick.
The WiFi can be hit and miss but when the trip is as quick as it is I can live without it.

You think you’ll just take a bus and save money. DON’T. Go ahead and rent a car. You’ll have a much less stressful time driving on the «wrong» side of the road. I made the mistake of traveling Aircoach from Dublin to Cork — the longest three hour ride of my life. I arrived in Ireland the day after their Patrick’s Day… I think the entire country was hung over. Finding the correct bus stop was not easy. And I was in an English speaking country. Keep in mind that I’d just jumped from Munich, Germany, a large international port. It was easier for me to get around in Germany than Ireland. The bus driver was rude, exceedingly rude. He wasn’t personally rude to me, but I saw him get into loud arguments with several passengers.
The Wifi on the bus was so faulty. I’m traveling to meet my French pen pal, who’s studying at The University of Cork, and the Wifi is f***ing up. You can image the panic I felt. I’d just left a land of supremely civilized and clean people to arrive in a chaotic dump of hung-​over drunks. Every stereotype of Ireland was proving to be true. Due to sketchy Wifi, I eventually used Facebook messenger to contact another friend in France. Finally, I heard from my friend in Cork. Two French people become acquainted over their lost American in Ireland. I just love the French!
After the road rage drive through Dublin to stop at more dumpy bus stops, we were finally on the Irish version of an interstate. I occupied my time by frantically messaging my French pals and gazing at pastoral Ireland. Yes, it’s like the photos you see, but I’ll take the Alpine towns of Austria and Germany. Three hours. Two French friends. All Americans are asleep over here. I’m alone — missing Germany — sitting next to some guy right off a plane from China. The bus driver really does not like this guy because he speaks no English. Bigotry. Great.
Finally, we arrive at our stop in Cork. I meet my friend in person for the first time! Amazing. And I consider this bus drive just a necessary evil. Seriously, if you want to recreate this experience in the United States, take a public bus through any depressed city — say Detroit — while playing an Irish jig on your iPod.

Short version: Freezing cold buses, actual service does not match published schedules, poor customer service.
Long version: Two terrible experiences with Aircoach. Never again. Take Airlink instead. It’s 30% cheaper and runs more frequently.
Dublin Airport to City Centre: The bus was like an icebox for the entire journey. The driver never put the heat on. See-​my-​breath cold. Sweater, down jacket, overcoat, and gloves. That cold. Weak wifi. «Travel in Luxury;» I don’t think so.
City Centre to Dublin: My mother and I arrived at the stop ahead of the published schedule and the driver drove right past us, despite us frantically trying to wave him down. We had to take a 30 Euro taxi to the airport to make it to our flight. Aircoach refused a refund.

Bus itself is comfy with a lot of space and generally not overcrowded. But never on time. Today’s bus to Belfast was 30min late and previous times waiting on O’Connell street busses to the airport never come as promised (every 15min).

I’ve always found this to be a grand service, even though the wi-​fi is erratic. Buses come regularly and are very comfortable, and it’s a quick trip to the airport as the stops are limited. Sure it’s grand.

I didn’t think it was possible but this airport bus may be more convenient than an Über.
I walked out of terminal 1 at Dublin airport and there it was, my chariot awaiting. I climbed aboard, got comfortable, and were were off to the city center less than a minute later.
A quick 20 min ride and € 8.50 (cash only) and you’re there.

I love Ireland… and especially love Dublin! When I’m away on holiday I will always sing the praises of the city. So nothing can burst my bubble of arriving back to the most IGNORANT and RUDE Aircoach staff.
While waiting for my bus I looked on as they showed little interest in helping others, including people only just arriving in the country — possibly for the first time. Horrible way to welcome people to Ireland. I ended up going over and helping the group with directions.
The bus driver was also not the most jovial either.
I only took this as I was going to Killiney. If going to city or train stations — just get the Airlink.
Poor experience. Wifi didn’t work either.

Having never been to Dublin before I thought it was going to take forever for us to reach the city center. Not so when we decided to take Aircoach after having arrived at the airport. Within a couple of minutes after arriving at the bus stand we were on a bus heading for the city. The buses look like standard tour buses however inside they are clean and best of all even have wifi (which worked). Drivers were nice and called out the stops as we were driving along

Despite what the website says, prices have gone up to 7 euro one-​way, which is slightly more expensive than the 6 euro 747 Airlink. HOWEVER, Aircoach runs much more regularly, which was crucial when I was trying to get to the airport on a Sunday at the crack-​of-​dawn. Airlink doesn’t start running its first bus from Heuston until 7am on Sundays (5 am on the rest) whereas THIS service seems to run once an hour, every hour at nearly all times of day and days of the week. Phewph!

I don’t understand why people are raving about this service so much.
— The wifi doesn’t work. I took two trips with them and neither had wifi
— Both journeys I was blessed with two highly rude and unhelpful drivers
— They have no toilets and no toilet stops
— There were ridiculous queues to get on the bus from either way — in fact not queues so much as Each Man For Himself throngs
— They are FREEZING! Seriously, no need for extreme aircon in the climate we’re in
Get yourself onto GoBus and suffer from none of the above again!

First time to Dubiin? Or the second or the tenth time and looking for a ride into the City Center? Well, the same answer is Aircoach for an efficient ride (only 20 – 30 minutes to most hotel locations in the Dublin City Center). Very convenient, and a decent splurge compared to the regular bus service and far less than a taxi.
The coach drivers are courtesy and will direct you to the closest stop if you let them know your hotel. And they will direct you to the return pickup location as well.
The WiFi didn’t work on my bus this recent time, but hope it works on the return.

When I’m feeling skint, need to get to the airport during the day, and have little baggage — the 16 bus suits me fine.
For anything else? Aircoach. There’s a pick-​up/​drop-​off stop beside our house down in D14 (hence my bias), and as my flight was leaving prior to bus times (and I was traveling heavy, baggage-​wise), I shelled out the € 15 quid for a return ticket.
Worth it. It arrived on time, had comfortable and clean seats, and it wasn’t crowded in the least. Breezed into the airport from Rathfarnham in about 40 minutes.
Upon returning after my trip, it was better — there were only two of us heading back on this particular route, so it only took 20 minutes to get from the airport to home. Awesome.
Though I was too sleepy to care too much, the wi-​fi was, sadly, not working for me. That’s the only drawback I had, though. Ride on, Aircoach, ride on.

Fast and comfortable with free wifi (occasionally spotty, as you might expect). Just keep these two tips in mind, if you’re catching the Aircoach from the Dublin airport.
Tip #1: Regardless of what people say in the Dublin airport, the Aircoach is not cash only. You can purchase a ticket via your credit card from the currency exchange desk.
Tip #2: You will have to exchange your voucher for an actual ticket. Look for the Aircoach kiosks by the bus stop.

Dropping some stars as the free wi-​fi that they boast about is very sporadic. Used to be great but lately I have noted that it drops very easily.
Please look into it!

Aircoach is a very good service from Dublin airport into Dublin town.
Its 12 — 14 euro return depending on where you go and has free wifi. The seats are comfy and generally the drivers are all right.
I guess the only issue stopping 5 stars would be price and the occasional wait of more than 30 minutes (when they are meant to be every 15 minutes).
I’ve used this service pretty much, compared to Dublin Bus I would prefer Aircoach but it is a bit more money.
I believe there is also a very cheap bus service the 16a, but it takes a long time!

I have been using Aircoach for the past three years and I am a big fan.
It’s reasonanble, especially when you get a return ticket. And it flies out to the airport, even on Friday evenings (fingers crossed I’ve not jinxed that now).
The buses are always clean and the seats are nice and comfy. Leg room is great, you can comfortably put your carry-​on case and your legs in the leg room provided.
99.9% of the time the drivers have always been super nice and polite… one recent exception though has lost them one star from me. I hope I never get that Mr Rude Driver again.

A great service if you are lucky enough to live near any of the routes (Which I do!), I tried them a few weeks ago for a 6.30 flight which meant I was one of those strange lurking bodies wandering the streets at 4am, I would like to point out however I was sober and clothed (well, mostly anyway).
The bus turned up almost to the minute in accordance with the timetable… noteworthy.
It was fast and comfortable and about 32 euro cheaper than a taxi… not to be sniffed at!