Aer Lingus Flight 3401 Deals & Information (2026/2027)

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 3401 Route Deals From $50

The cheapest prices found with in the last 7 days for return flights were $90 and $50 for one-way flights to Dublin for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 3 - Tue, Nov 10
CFN
Donegal
DUB
Dublin
$90 Roundtrip, found 4 days ago
$90
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Nov 3 from Donegal to Dublin, returning Tue, Nov 10, priced at $90 found 4 days ago
Tue, Nov 3 - Tue, Nov 10
CFN
Donegal
DUB
Dublin
$97 Roundtrip, found 4 days ago
$97
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Nov 3 from Donegal to Dublin, returning Tue, Nov 10, priced at $97 found 4 days ago
Thu, Jul 23 - Sun, Jul 26
CFN
Donegal
DUB
Dublin
$99 Roundtrip, found 4 days ago
$99
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Thu, Jul 23 from Donegal to Dublin, returning Sun, Jul 26, priced at $99 found 4 days ago
Tue, Nov 3 - Tue, Nov 10
CFN
Donegal
DUB
Dublin
$189 Roundtrip, found 4 days ago
$189
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Nov 3 from Donegal to Dublin, returning Tue, Nov 10, priced at $189 found 4 days ago
Thu, Jul 23 - Sun, Jul 26
CFN
Donegal
DUB
Dublin
$193 Roundtrip, found 4 days ago
$193
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Thu, Jul 23 from Donegal to Dublin, returning Sun, Jul 26, priced at $193 found 4 days ago
Tue, Nov 3 - Tue, Nov 10
CFN
Donegal
DUB
Dublin
$196 Roundtrip, found 4 days ago
$196
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Nov 3 from Donegal to Dublin, returning Tue, Nov 10, priced at $196 found 4 days ago
Tue, Nov 3 - Tue, Nov 10
CFN
Donegal
DUB
Dublin
$288 Roundtrip, found 4 days ago
$288
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Nov 3 from Donegal to Dublin, returning Tue, Nov 10, priced at $288 found 4 days ago

Frequently asked questions

What route does flight number EI3401 take?
Flight number EI3401 flies straight from CFN to Dublin Airport (DUB). During this trip, expect to be in the air for 55 minutes. Book ahead to secure your preferred seat.
What kind of plane is on flight number EI3401?
The route for flight number EI3401 is most commonly CFN to Dublin Airport (DUB), and the ATR 42 is the aircraft model you're likely to be heading off on.
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 EI3401 flight with Travelocity, please visit our Customer Service Portal.