Cheap flights from Helsinki to Porto
The cheapest return and one-way flights from Helsinki to Porto for the next 12 months, plus the cheapest departure dates and weekend trips. Compare and book on Aviasales.
- Cheapest return
- from €339
- Cheapest month: October 2026
- Cheapest one-way
- from €105
- Cheapest month: January 2027
- Typical price (return)
- €399
- Median of 5 departure dates over the next ~4 months
- Direct flights
- Not found
- In recent searches – the cheapest fares have a stop
- Typical flight time
- 5 h 29 min
- Outbound, including stops
- Airlines
- 5 airlines
- Finnair, Norwegian Air International, SAS, Braathens Regional and CityJet
Prices are based on searches from the last few days (updated 24 Sep 2026, 15:56 Finnish time). Prices change – check the final price on the booking site.
Price calendar: cheapest price by month
| Departure month | Return from | One-way from |
|---|---|---|
| September 2026 | return | one-way |
| October 2026cheapest | return | one-way |
| November 2026 | no price | no price |
| December 2026 | no price | no price |
| January 2027 | no price | one-way |
| February 2027 | no price | no price |
| March 2027 | no price | no price |
| April 2027 | no price | no price |
| May 2027 | no price | no price |
| June 2027 | no price | no price |
| July 2027 | no price | no price |
| August 2027 | no price | no price |
5 cheapest departure dates (return, next 90 days)
Fri 16 Oct – Fri 23 Oct · 7 nights
Norwegian Air International · out 1 stop · back 3 stops
View flights€339
return
Fri 2 Oct – Mon 5 Oct · 3 nights
Norwegian Air International · out 3 stops · back 2 stops
View flights€376
return
Fri 9 Oct – Mon 12 Oct · 3 nights
Norwegian Air International · out 1 stop · back 1 stop
View flights€399
return
Thu 8 Oct – Mon 12 Oct · 4 nights
Finnair · out 1 stop · back 2 stops
View flights€426
return
Sun 27 Sep – Sun 11 Oct · 14 nights
N7 · out 3 stops · back 2 stops
View flights€441
return
Weekend trips (return, Fri → Sun/Mon)
Fri 2 Oct – Mon 5 Oct · 3 nights
Norwegian Air International · out 3 stops · back 2 stops
View flights€376
return
Fri 9 Oct – Mon 12 Oct · 3 nights
Norwegian Air International · out 1 stop · back 1 stop
View flights€399
return
Prices are based on searches from the last few days (updated 24 Sep 2026, 15:56 Finnish time). Prices change – check the final price on the booking site.
About Porto
Porto is built on the slopes of the Douro river and is known for its port wine cellars, tiled façades and the riverside Ribeira district. The city is compact and well suited to a trip of a few days.
The best time to visit is May–September; winter is noticeably rainier.
Frequently asked questions
When are flights to Porto cheapest?
Based on searches from the last few days, the cheapest return flight to Porto is in October 2026: from €339. Other good-value months are September 2026 (€441). The cheapest one-way flight costs from €105 (January 2027).
Are there direct flights from Helsinki to Porto?
Searches from the last few days found no direct flights from Helsinki to Porto, so the cheapest fares have a stop. Direct services may still exist – check the schedules on the booking site.
How much does a flight to Porto cost on average?
The median return fare for departures over the next four months or so is €399 (based on 5 departure dates). The lowest prices are: return from €339 and one-way from €105.