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Flexible datesWhen is it cheapest?

Cheapest cruise-line fare we’ve captured per month, refreshed nightly. Tap a month to see those departures; an advisor confirms your exact price.

$4,217+low$4,682+typical$5,144+high
Holiday & school breaks
6-Night Douro CruiseDouro

Emerald Cruises

6-Night Douro Cruise

Aboard Emerald Radiance

Round-trip from Porto-Vecchio

↓ $678 this month15% Savings incl.

from$4,217pp · cruise fare≈ $703/night pp

Fares checked nightly

Sep 2026 – Nov 2027Next 19 Sep 2026 · 41 more
9-Night Mediterranean CruiseMediterranean

Emerald Cruises

9 nights in the Mediterranean

Aboard Emerald Radiance

Lisbon → Porto-Vecchio

↓ $717 this month15% Savings incl.

from$5,303pp · cruise fare≈ $589/night pp

Fares checked nightly

Sep 2026 – Oct 2027Next 30 Sep 2026 · 18 more
Lisbon & Secrets of the DouroEurope

Emerald Cruises

Lisbon & Secrets of the Douro

Aboard Emerald Radiance

Lisbon → Porto

Overnight in LisbonRare itinerary
Sep 2026Next 30 Sep 2026
Secrets of the Douro & LisbonEurope

Emerald Cruises

Secrets of the Douro & Lisbon

Aboard Emerald Radiance

Porto → Lisbon

↓ $717 this month15% Savings incl.

from$5,303pp · cruise fare≈ $530/night pp

Fares checked nightly

Sep 2026 – Nov 2026Next 26 Sep 2026 · 2 more
9-Night Mediterranean CruiseMediterranean

Emerald Cruises

9 nights: Barcelona, the Mediterranean

Aboard Emerald Radiance

Barcelona → Porto-Vecchio

↓ $753 this month15% Savings incl.

from$5,652pp · cruise fare≈ $628/night pp

Fares checked nightly

May 2027 – Oct 2027Next 5 May 2027 · 2 more
Barcelona & Secrets of the DouroEurope

Emerald Cruises

10 nights: Barcelona

Aboard Emerald Radiance

Barcelona → Porto

↓ $753 this month15% Savings incl.

from$5,652pp · cruise fare≈ $565/night pp

Fares checked nightly

May 2027 – Oct 2027Next 5 May 2027 · 2 more
14-Night Mediterranean CruiseMediterranean

Emerald Cruises

14 nights in the Mediterranean

Aboard Emerald Radiance

Porto-Vecchio → Villefranche-sur-Mer

↓ $502 this month10% Savings incl.

from$7,088pp · cruise fare≈ $506/night pp

Fares checked nightly

Oct 2026 – Sep 2027Next 17 Oct 2026 · 3 more
9-Night Douro CruiseDouro

Emerald Cruises

9-Night Douro Cruise

Aboard Emerald Radiance

Madrid → Porto-Vecchio

↓ $717 this month15% Savings incl.

from$5,303pp · cruise fare≈ $589/night pp

Fares checked nightly

Sep 2026 – Jun 2027Next 23 Sep 2026 · 3 more
Secrets of the Douro & MadridEurope

Emerald Cruises

Secrets of the Douro & Madrid

Aboard Emerald Radiance

Porto → Madrid

↓ $753 this month15% Savings incl.

from$5,652pp · cruise fare≈ $565/night pp

Fares checked nightly

Jul 2027 – Oct 2027Next 24 Jul 2027 · 1 more
Madrid & Secrets of the DouroEurope

Emerald Cruises

Madrid & Secrets of the Douro

Aboard Emerald Radiance

Madrid → Porto

↓ $717 this month15% Savings incl.

from$5,303pp · cruise fare≈ $530/night pp

Fares checked nightly

Sep 2026 – Jun 2027Next 23 Sep 2026 · 3 more
Lisbon to Madrid with Secrets of the DouroEurope

Emerald Cruises

Lisbon to Madrid with Secrets of the Douro

Aboard Emerald Radiance

Lisbon → Madrid

↓ $502 this month10% Savings incl.

from$7,088pp · cruise fare≈ $545/night pp

Fares checked nightly

Jul 2027 – Oct 2027Next 21 Jul 2027 · 1 more
Madrid to Lisbon & Secrets of the DouroEurope

Emerald Cruises

Madrid to Lisbon & Secrets of the Douro

Aboard Emerald Radiance

Madrid → Lisbon

↓ $281 this month5% Savings incl.

from$8,329pp · cruise fare≈ $641/night pp

Fares checked nightly

Sep 2026 – Jun 2027Next 23 Sep 2026 · 3 more
7-Night Mediterranean CruiseMediterranean

Emerald Cruises

7 nights: Barcelona, the Mediterranean

Aboard Emerald Radiance

Porto-Vecchio → Barcelona

↓ $753 this month15% Savings incl.

from$4,642pp · cruise fare≈ $663/night pp

Fares checked nightly

Apr 2027 – Aug 2027Next 17 Apr 2027 · 2 more
10-Night Mediterranean CruiseMediterranean

Emerald Cruises

10 nights: Barcelona, the Mediterranean

Aboard Emerald Radiance

Lisbon → Barcelona

↓ $753 this month15% Savings incl.

from$5,827pp · cruise fare≈ $583/night pp

Fares checked nightly

Apr 2027 – Aug 2027Next 14 Apr 2027 · 2 more
Secrets of the Douro & BarcelonaEurope

Emerald Cruises

10 nights: Barcelona

Aboard Emerald Radiance

Porto → Barcelona

↓ $753 this month15% Savings incl.

from$5,827pp · cruise fare≈ $583/night pp

Fares checked nightly

Apr 2027 – Aug 2027Next 17 Apr 2027 · 2 more
Barcelona to Lisbon & Secrets of the DouroEurope

Emerald Cruises

13 nights: Barcelona

Aboard Emerald Radiance

Barcelona → Lisbon

↓ $502 this month10% Savings incl.

from$7,088pp · cruise fare≈ $545/night pp

Fares checked nightly

May 2027 – Oct 2027Next 5 May 2027 · 2 more
Lisbon to Barcelona & Secrets of the DouroEurope

Emerald Cruises

13 nights: Barcelona

Aboard Emerald Radiance

Lisbon → Barcelona

↓ $502 this month10% Savings incl.

from$7,088pp · cruise fare≈ $545/night pp

Fares checked nightly

Apr 2027 – Aug 2027Next 14 Apr 2027 · 2 more
14-Night Seine CruiseSeine

Emerald Cruises

14-Night Seine Cruise

Aboard Emerald Radiance

Porto-Vecchio → Paris

↓ $502 this month10% Savings incl.

from$7,088pp · cruise fare≈ $506/night pp

Fares checked nightly

Jun 2027 – Sep 2027Next 12 Jun 2027 · 2 more
17-Night Mediterranean CruiseMediterranean

Emerald Cruises

17 nights in the Mediterranean

Aboard Emerald Radiance

Lisbon → Villefranche-sur-Mer

Rare itinerary
Mar 2027 – Sep 2027Next 31 Mar 2027 · 2 more
Lisbon & Discover the Rivers of France & PortugalEurope

Emerald Cruises

17 nights: Nice

Aboard Emerald Radiance

Lisbon → Arles

Overnight in LisbonRare itinerary

from$22,010pp · cruise fare≈ $1,295/night pp

Fares checked nightly

Oct 2026Next 14 Oct 2026
Lisbon to Nice & Discover the Rivers of France & PortugalEurope

Emerald Cruises

20 nights: Nice

Aboard Emerald Radiance

Lisbon → Nice

Overnight in LisbonRare itinerary

from$12,835pp · cruise fare≈ $642/night pp

Fares checked nightly

Oct 2026Next 14 Oct 2026