On your own: Dublin → Porto
For a trip of about 23 days in November 2026, the best price we have seen is $543 CAD for Montreal → Dublin, plus $454 CAD for Porto → Montreal, $997 CAD in total.
By road, expect about 2444 km (about 34 h of driving) between Dublin and Porto.
Open jaw or round trip, month by month: Dublin and Porto
In our scans, the open jaw between Dublin and Porto costs $340 more on average (45%) than the best round trip to either city. The gap is smallest in November ($166 more): it is the price of landing in one city and flying home from another.
| Month | Open jaw | Dublin round trip | Porto round trip | Versus best round trip |
|---|---|---|---|---|
| November | $997 | $909 | $831 | $166 more |
| December | $1164 | $945 | $887 | $277 more |
| January | $1170 | $890 | $727 | $443 more |
| February | $1147 | $914 | $727 | $420 more |
| March | $1119 | $917 | $727 | $392 more |
For each month: the best open-jaw price (two one-way flights, stays of 23 to 23 days) and the best round trip to each of the two cities (stays of 19 to 27 days, depending on the lengths we scan). Only our latest scans are used.
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Frequently asked questions: Dublin → Porto
What is an open-jaw flight?
An open-jaw (or multi-city) flight arrives in one city and leaves from another. Here you arrive in Dublin and fly home from Porto instead of returning to where you landed.
How much is a flight from Montreal into Dublin, home from Porto?
For about 23 days, the best price we have seen is $997 CAD: $543 CAD to fly into Dublin and $454 CAD to fly home from Porto.
How do I get from Dublin to Porto?
By road it is about 2444 km (about 34 h of driving) from Dublin to Porto. Train, bus or a rental car are the usual options; that cost is not included in the prices shown.
Are these prices guaranteed?
No. They are the best prices from our latest scan and they change often. Check the final price on Google Flights before you book.