Cheap flights from Helsinki to Oslo
The cheapest return and one-way flights from Helsinki to Oslo for the next 12 months, plus the cheapest departure dates and weekend trips. Compare and book on Aviasales.
- Cheapest return
- from €135
- Cheapest month: May 2027
- Cheapest one-way
- from €44
- Cheapest month: November 2026
- Typical price (return)
- €204
- Median of 6 departure dates over the next ~4 months
- Direct flights
- Found
- In recent searches: Finnair, Norwegian Air International and Norwegian
- Typical flight time
- 1 h 30 min
- Outbound, direct flights
- Airlines
- 4 airlines
- Finnair, airBaltic, Norwegian Air International and Norwegian
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 2026 | return | one-way |
| November 2026 | no price | one-way |
| December 2026 | return | one-way |
| January 2027 | no price | no price |
| February 2027 | no price | no price |
| March 2027 | no price | no price |
| April 2027 | no price | no price |
| May 2027cheapest | return | 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)
Thu 15 Oct – Mon 19 Oct · 4 nights
Norwegian · out direct · back 1 stop
View flights€154
return
Sat 17 Oct – Mon 19 Oct · 2 nights
airBaltic · out 1 stop · back 1 stop
View flights€176
return
Thu 29 Oct – Thu 29 Oct · 0 nights
Norwegian Air International · out direct · back 1 stop
View flights€182
return
Sat 10 Oct – Sun 18 Oct · 8 nights
Finnair · out 1 stop · back 1 stop
View flights€226
return
Mon 28 Sep – Fri 2 Oct · 4 nights
airBaltic · out 1 stop · back 1 stop
View flights€226
return
Weekend trips (return, Fri → Sun/Mon)
No weekend trips for the next 8 weeks were found in recent searches.
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 Oslo
Oslo is a capital at the head of a fjord, with sights such as the Opera House, the Vigeland sculpture park and the Munch Museum. The metro takes you straight from the centre into nature.
The best time to visit is May–September; in winter the metro takes you to the ski slopes.
Frequently asked questions
When are flights to Oslo cheapest?
Based on searches from the last few days, the cheapest return flight to Oslo is in May 2027: from €135. Other good-value months are December 2026 (€151) and October 2026 (€154). The cheapest one-way flight costs from €44 (November 2026).
Are there direct flights from Helsinki to Oslo?
Yes. Searches from the last few days found direct flights from Helsinki to Oslo (Finnair, Norwegian Air International and Norwegian).
How much does a flight to Oslo cost on average?
The median return fare for departures over the next four months or so is €204 (based on 6 departure dates). The lowest prices are: return from €135 and one-way from €44.