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$404+ Cheap flights from Trenton, NJ (TTN) to Dublin (DUB)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — DUB
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheap flight deals from Trenton to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,267
(Kiwi.com)

One-way from

$404
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$455
Provider with most accurate pricing for Trenton-Mercer-Dublin flight deals.
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Provider most trusted by Cheapflights users for Trenton-Mercer-Dublin flights.
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From Trenton-Mercer to Dublin
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One-way flight from Trenton-Mercer to Dublin
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Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Trenton to Dublin

Cheapest flights from Trenton to Dublin
Explore the most affordable flight options available from Trenton to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/125:58 pmTTN - DUB
1 stop34h 02mMultiple Airlines
vie. 12/1911:40 amDUB - TTN
2 stops38h 34mMultiple Airlines
Deal found 10/29$1,267

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton to Dublin 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from Trenton to Dublin that are best for you.

Fly from

Trenton

Fly to

Dublin

Route

Depart

Return

Price

TrentonDublin

TTN - DUB

TTNDUB

Trenton-Mercer

vie. 12/12

5:58 pm-9:00 am

1 stop34h 02m

Dublin

vie. 12/19

11:40 am-9:14 pm

2 stops38h 34m

$1,267

TrentonDublin

TTN - DUB

TTNDUB

Trenton-Mercer

sáb. 3/21

6:10 am-9:00 am

1 stop22h 50m

Dublin

sáb. 3/28

12:05 pm-9:14 pm

2 stops37h 09m

$1,443

TrentonDublin

TTN - DUB

TTNDUB

Trenton-Mercer

sáb. 3/21

6:10 am-11:05 am

2 stops48h 55m

$404

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

  • Most accurate provider: When it comes to deals on Trenton, New Jersey-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Trenton, New Jersey-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Trenton, New Jersey-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trenton, New Jersey-Dublin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Trenton, New Jersey-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Trenton to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Trenton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Trenton to Dublin

What is the cheapest month to book a flight from Trenton, New Jersey to Dublin?

Currently, February is the cheapest month in which you can book a flight from Trenton, New Jersey to Dublin (average of $243). Flying from Trenton, New Jersey to Dublin in June is currently the most expensive (average of $433). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Trenton to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Trenton to Dublin that include hotel bookings?

    Yes. In addition to deals on Trenton to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trenton to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trenton to Dublin.

  • Can I find deals for business class flights from Trenton to Dublin?

    Yes. Cheapflights offers flight deals from Trenton to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Trenton, New Jersey to Dublin?

    Currently, February is the cheapest month in which you can book a flight from Trenton, New Jersey to Dublin (average of $243). Flying from Trenton, New Jersey to Dublin in June is currently the most expensive (average of $433). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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