Aer Lingus Flight 3401 Deals & Information (2025/2026)

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Aer Lingus Flight 3401 Route Deals From $31

The cheapest prices found with in the last 7 days for return flights were $62 and $31 for one-way flights to Dublin for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 16 - Sat, Jul 19
CFN
Donegal
DUB
Dublin
$62 Roundtrip, found 1 day ago
$62
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Wed, Jul 16 from Donegal to Dublin, returning Sat, Jul 19, priced at $62 found 1 day ago
Wed, Jul 16 - Sat, Jul 19
CFN
Donegal
DUB
Dublin
$87 Roundtrip, found 1 day ago
$87
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Wed, Jul 16 from Donegal to Dublin, returning Sat, Jul 19, priced at $87 found 1 day ago
Thu, Jun 26 - Wed, Jul 2
CFN
Donegal
DUB
Dublin
$99 Roundtrip, found 4 days ago
$99
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Thu, Jun 26 from Donegal to Dublin, returning Wed, Jul 2, priced at $99 found 4 days ago
Tue, Jun 24 - Fri, Jul 4
CFN
Donegal
DUB
Dublin
$101 Roundtrip, found 5 days ago
$101
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Tue, Jun 24 from Donegal to Dublin, returning Fri, Jul 4, priced at $101 found 5 days ago
Tue, Jun 24 - Fri, Jul 4
CFN
Donegal
DUB
Dublin
$108 Roundtrip, found 5 days ago
$108
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Tue, Jun 24 from Donegal to Dublin, returning Fri, Jul 4, priced at $108 found 5 days ago
Tue, Jun 24 - Fri, Jul 4
CFN
Donegal
DUB
Dublin
$139 Roundtrip, found 5 days ago
$139
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Tue, Jun 24 from Donegal to Dublin, returning Fri, Jul 4, priced at $139 found 5 days ago
Fri, Jun 27 - Tue, Jul 1
CFN
Donegal
DUB
Dublin
$201 Roundtrip, found 2 days ago
$201
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Fri, Jun 27 from Donegal to Dublin, returning Tue, Jul 1, priced at $201 found 2 days ago
Fri, Jun 27 - Tue, Jul 1
CFN
Donegal
DUB
Dublin
$207 Roundtrip, found 2 days ago
$207
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Fri, Jun 27 from Donegal to Dublin, returning Tue, Jul 1, priced at $207 found 2 days ago
Fri, Jun 27 - Tue, Jul 1
CFN
Donegal
DUB
Dublin
$214 Roundtrip, found 2 days ago
$214
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Fri, Jun 27 from Donegal to Dublin, returning Tue, Jul 1, priced at $214 found 2 days ago
Fri, Jun 27 - Tue, Jul 1
CFN
Donegal
DUB
Dublin
$219 Roundtrip, found 2 days ago
$219
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Fri, Jun 27 from Donegal to Dublin, returning Tue, Jul 1, priced at $219 found 2 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.