Aer Lingus Flight 100 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Aer Lingus Flight 100 Route Deals From $298

The cheapest prices found with in the last 7 days for return flights were $442 and $298 for one-way flights to Dublin for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 30 - Thu, Jul 10
EWR
Newark Liberty Intl. Airport
DUB
Dublin
$442 Roundtrip, found 1 day ago
$442
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Mon, Jun 30 from Newark Liberty Intl. Airport to Dublin, returning Thu, Jul 10, priced at $442 found 1 day ago

Frequently asked questions

What route does flight number EI100 take?
EI100 operates between Liberty Intl. Airport (EWR) and Dublin Airport (DUB) directly. This trip generally takes 6 hours and 30 minutes.
What terminal does EI100 fly out of?
You’ll likely be hopping on the plane at Terminal B if you’re traveling on flight EI100 direct from Liberty Intl. Airport (EWR) to Dublin Airport (DUB).
What kind of plane is on flight number EI100?
Get set to cruise aboard an Airbus A321neo if you have a seat on flight EI100. Nearly all services from EWR to DUB are operated using this type of plane.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your EI100 flight with Travelocity, please visit our Customer Service Portal.