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Dublin to Barcelona flights in December 2026 from $40 DUB → BCN

Dublin Airport (DUB) → Barcelona-El Prat Airport (BCN)

For departures in December 2026, the cheapest return found recently is $228 with Aer Lingus, 23 Dec – 3 Jan 2027, found 2 days ago. The cheapest one-way found recently is $40 with Ryanair, 4 Dec, found 3 days ago.

Return

In December 2026, the cheapest return fare on each of 11 departure dates is usually $77 to $132. Across all 31 departure dates we hold on this route, it is usually $87 to $164. Of the 3 months with enough return fares to compare, December 2026 is usually the cheapest.

Cheapest return found recently

$228

23 Dec – 3 Jan 2027 · Aer Lingus

Dublin Airport (DUB) → Barcelona-El Prat Airport (BCN)

out 1 stop, back 1 stop

found 2 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$46

11 Dec – 13 Dec · Ryanair

Dublin Airport (DUB) → Barcelona-El Prat Airport (BCN)

out nonstop, back nonstop

found 4 days ago

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
11 Dec – 13 Dec$46Ryanairout nonstop, back nonstopfound 4 days agoSee prices for these dates
4 Dec – 9 Dec$63Ryanairout nonstop, back nonstopfound 3 days agoSee prices for these dates
17 Dec – 20 Dec$73Ryanairout nonstop, back nonstopfound 5 days agoSee prices for these dates
5 Dec – 6 Dec$80Ryanairout nonstop, back nonstopfound 6 days agoSee prices for these dates
7 Dec – 8 Dec$100Aer Lingusout nonstop, back nonstopfound 4 days agoSee prices for these dates

Every date we hold

11 departure dates

1 Dec – 1 Dec: $103, found 5 days ago2 Dec – 2 Dec: $114, found 3 days ago3 Dec – 3 Dec: $142, found 3 days ago4 Dec – 9 Dec: $63, found 3 days ago5 Dec – 6 Dec: $80, found 6 days ago7 Dec – 8 Dec: $100, found 4 days ago8 Dec – 9 Dec: $168, found 4 days ago11 Dec – 13 Dec: $46, found 4 days ago17 Dec – 20 Dec: $73, found 5 days ago19 Dec – 22 Dec: $121, found 5 days ago23 Dec – 3 Jan 2027: $228, found 2 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 1 Dec$103RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back nonstopfound 5 days agoSee prices for these dates
2 Dec – 2 Dec$114RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back nonstopfound 3 days agoSee prices for these dates
3 Dec – 3 Dec$142RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back 1 stopfound 3 days agoSee prices for these dates
4 Dec – 9 Dec$63RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back nonstopfound 3 days agoSee prices for these dates
5 Dec – 6 Dec$80RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back nonstopfound 6 days agoSee prices for these dates
7 Dec – 8 Dec$100Aer LingusDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back nonstopfound 4 days agoSee prices for these dates
8 Dec – 9 Dec$168RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out 1 stop, back nonstopfound 4 days agoSee prices for these dates
11 Dec – 13 Dec$46RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back nonstopfound 4 days agoSee prices for these dates
17 Dec – 20 Dec$73RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back nonstopfound 5 days agoSee prices for these dates
19 Dec – 22 Dec$121RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out nonstop, back nonstopfound 5 days agoSee prices for these dates
23 Dec – 3 Jan 2027$228Aer LingusDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $46.

November 2026From $8211 departure dates28 Nov – 29 Nov · found 6 days agoSee prices for these datesEvery date in November 2026
December 2026From $46Cheapest seen11 departure dates11 Dec – 13 Dec · found 4 days agoSee prices for these dates
January 2027From $1541 departure date2 Jan 2027 – 10 Jan 2027 · found 3 days agoSee prices for these dates
February 2027From $854 departure dates4 Feb 2027 – 8 Feb 2027 · found 5 days agoSee prices for these dates
March 2027From $722 departure dates1 Mar 2027 – 4 Mar 2027 · found 4 days agoSee prices for these dates
June 2027From $2002 departure dates27 Jun 2027 – 7 Jul 2027 · found 3 days agoSee prices for these dates

One-way

We hold one-way fares on only 2 departure dates in December 2026, too few to say what one usually costs.

Cheapest one-way found recently

$40

4 Dec · Ryanair

Dublin Airport (DUB) → Barcelona-El Prat Airport (BCN)

nonstop

found 3 days ago

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Cheapest we hold, of any age

$19

3 Dec · Ryanair

Dublin Airport (DUB) → Barcelona-El Prat Airport (BCN)

nonstop

found 7 days ago

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
3 Dec$19Ryanairnonstopfound 7 days agoOpen this trip
4 Dec$40Ryanairnonstopfound 3 days agoOpen this trip

Every date we hold

2 departure dates

3 Dec: $19, found 7 days ago4 Dec: $40, found 3 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Dec$19RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)nonstopfound 7 days agoOpen this trip
4 Dec$40RyanairDublin Airport (DUB) → Barcelona-El Prat Airport (BCN)nonstopfound 3 days agoOpen this trip

Which month looks cheapest?

December 2026 is the cheapest month — from $19.

November 2026From $232 departure dates29 Nov · found 2 days agoOpen this tripEvery date in November 2026
December 2026From $19Cheapest seen2 departure dates3 Dec · found 7 days agoOpen this trip
January 2027From $362 departure dates9 Jan 2027 · found 7 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work