Aer Lingus Flight EI3401 Deals & Information (2025/2026)

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Aer Lingus Flight 3401 Route Deals From $41

The cheapest prices found with in the last 7 days for return flights were $81 and $41 for one-way flights to Dublin for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 21 - Sun, Aug 24
CFN
Donegal
DUB
Dublin
$81 Roundtrip, found 5 days ago
$81
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Thu, Aug 21 from Donegal to Dublin, returning Sun, Aug 24, priced at $81 found 5 days ago
Tue, Sep 9 - Sat, Sep 13
CFN
Donegal
DUB
Dublin
$82 Roundtrip, found 1 day ago
$82
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Tue, Sep 9 from Donegal to Dublin, returning Sat, Sep 13, priced at $82 found 1 day ago
Wed, Aug 13 - Wed, Aug 20
CFN
Donegal
DUB
Dublin
$108 Roundtrip, found 2 days ago
$108
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed, Aug 13 from Donegal to Dublin, returning Wed, Aug 20, priced at $108 found 2 days ago
Fri, Aug 22 - Mon, Aug 25
CFN
Donegal
DUB
Dublin
$109 Roundtrip, found 1 day ago
$109
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Fri, Aug 22 from Donegal to Dublin, returning Mon, Aug 25, priced at $109 found 1 day ago
Wed, Aug 13 - Wed, Aug 20
CFN
Donegal
DUB
Dublin
$115 Roundtrip, found 2 days ago
$115
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed, Aug 13 from Donegal to Dublin, returning Wed, Aug 20, priced at $115 found 2 days ago
Thu, Aug 21 - Sun, Aug 24
CFN
Donegal
DUB
Dublin
$116 Roundtrip, found 5 days ago
$116
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Thu, Aug 21 from Donegal to Dublin, returning Sun, Aug 24, priced at $116 found 5 days ago
Wed, Aug 13 - Wed, Aug 20
CFN
Donegal
DUB
Dublin
$135 Roundtrip, found 2 days ago
$135
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed, Aug 13 from Donegal to Dublin, returning Wed, Aug 20, priced at $135 found 2 days ago
Fri, Aug 22 - Mon, Aug 25
CFN
Donegal
DUB
Dublin
$136 Roundtrip, found 1 day ago
$136
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Fri, Aug 22 from Donegal to Dublin, returning Mon, Aug 25, priced at $136 found 1 day ago
Wed, Aug 13 - Wed, Aug 20
CFN
Donegal
DUB
Dublin
$142 Roundtrip, found 2 days ago
$142
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed, Aug 13 from Donegal to Dublin, returning Wed, Aug 20, priced at $142 found 2 days ago
Thu, Aug 21 - Sun, Aug 24
CFN
Donegal
DUB
Dublin
$150 Roundtrip, found 5 days ago
$150
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Thu, Aug 21 from Donegal to Dublin, returning Sun, Aug 24, priced at $150 found 5 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.