Helsinki to Oslo: buy now or wait?
Buy now FareScore 80/100
usually €52 €45 Today's best fare
Cheaper than 80% of what we have seen
17 Dec Norwegian Air Sweden Direct
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All fares Helsinki → Oslo
Cheapest first. Every price is live and goes straight to booking.
17 Dec
10:25
Norwegian Air Sweden · 1h 35m
Direct ↓31%
€65 €45
27 Nov
21:40
Ryanair · 38h 05m
With a stop
€51
9 Jan
09:10
Finnair · 1h 35m
Direct
€64
13 Nov
10:25
Norwegian Air Sweden · 1h 35m
Direct
€71
18 Nov
15:00
Norwegian Air Sweden · 24h 55m
With a stop
€72
1 Jan
05:20
Finnair · 1h 35m
Direct
€72
19 Nov
10:25
Norwegian Air Sweden · 1h 35m
Direct
€74
18 Dec
10:25
Norwegian Air Sweden · 1h 35m
Direct
€94
21 Dec
10:25
Norwegian Air Sweden · 1h 35m
Direct
€95
What the history says
Prices recorded 199
Typical price €52
Lowest we saw €45
You save today €7
Based on 199 prices we recorded on this exact route, compared against the same departure month.
Best booking window
28–41 days — is when this route has been cheapest to book: €52 typical, on 32 observations. That is about €21 less than booking in the last two weeks.
Cheapest months to fly to Oslo
November €52 44 observations
December €60 84 observations
September €63 17 observations
Booking tips from our fare data
- How far in advance should you book a flight?
- Book 1–1.5 months before departure. Tracking the same flights at every lead time (94,914 flights on 19,442 routes, 2026-06-14 to 2026-11-04), that window had the smallest average premium over each flight's lowest fare: +16.8%, against +49.3% in the last 3 days.
- What is the cheapest day of the week to fly?
- Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.4% and Tuesday +4.2%, while Friday was the dearest at +10.6%. Weekend departures cost more than midweek ones.
- What is the cheapest month to fly?
- November 2026. Comparing each route's fares month by month (booked 8–60 days ahead), November 2026 departures were -1.1% against the route's own median, while January 2027 was the dearest at +17.5%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-04.
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