Departure-day prices · July 2026 Trondheim → Helsinki
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Return-day prices · July 2026 Helsinki → Trondheim
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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Best time to visit Helsinki — climate Jan: ~2°C daytime, 17 rainy days
2°
Jan Feb: ~-1°C daytime, 5 rainy days
-1°
Feb Mar: ~5°C daytime, 9 rainy days
5°
Mar Apr: ~9°C daytime, 11 rainy days
9°
Apr May: ~13°C daytime, 12 rainy days
13°
May Jun: ~17°C daytime, 20 rainy days
17°
Jun Jul: ~23°C daytime, 11 rainy days
23°
Jul Aug: ~19°C daytime, 14 rainy days
19°
Aug Sep: ~16°C daytime, 12 rainy days
16°
Sep Oct: ~10°C daytime, 14 rainy days
10°
Oct Nov: ~6°C daytime, 15 rainy days
6°
Nov Dec: ~4°C daytime, 14 rainy days
4°
Dec Flights from Trondheim to Helsinki start around €106 (typically 1 stop). Range seen recently: €106–106, based on 1 fares found by travellers.
Fly (from €106)
3h 35m duration
€106–106 recent fares
Book
Cheapest cached fares Trondheim → Helsinki; typically 1 stop (e.g. WF). · Based on 1 fares found by travellers in the last 48h
Cheapest round trips to Helsinki Fares found by travellers in the last 48 hours — refreshed daily.
Aug 5 – Aug 17
Norwegian Air Shuttle · 1 stop · 2h 20m
€205
Book
Aug 4 – Aug 20
NORRA · Direct · 2h 05m
€206
Book
Aug 3 – Aug 19
NORRA · Direct · 2h 05m
€225
Book
Aug 3 – Aug 18
Norwegian Air Shuttle · 1 stop · 2h 20m
€228
Book
Aug 4 – Aug 21
NORRA · Direct · 2h 05m
€237
Book
Weather in Helsinki
Fri
☁️
21°
14°
💧35%
Sat
🌦️
20°
16°
💧76%
Sun
🌦️
21°
17°
💧94%
Mon
🌧️
19°
17°
💧73%
Tue
🌧️
22°
14°
💧45%
Wed
☀️
22°
13°
💧25%
Thu
🌤️
21°
14°
💧25%
In Jul, Helsinki typically sees ~23°C daytime highs and 11 rainy days.
Where to stay in Helsinki 3★+ hotels from €77/night (38 hotels sampled, ~3 weeks out).
Scandic Ruoholahti
hotel · Helsinki
from €77/night ★ 4
VALO Hotel & Work Helsinki
hotel · Helsinki
from €89/night ★ 4
Holiday Inn Helsinki - Expo by IHG
hotel · Helsinki
from €105/night ★ 4
Good to know Currency Euro (€)
Power plugs Type C/F
Border Schengen — no passport control from Schengen countries
Time difference +1h
Time in the air 2h 05m
Things to do in Helsinki Top-rated tours and tickets from €49 — book ahead for the popular ones.
Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.
About Helsinki
Helsinki (Swedish: Helsingfors) is Finland's capital and largest city. Helsinki combines modern and historic architectural styles with beautiful open spaces. The city is surrounded by hundreds of tiny islands, and is a cultural bridge between the East and West. The "Pearl of the Baltic Sea" is easy to explore on foot or on bike, and it has a laid-back vibe.
Read the full Helsinki guide
Guide content from Wikivoyage contributors (CC BY-SA).
Popular from Trondheim Cheapest destinations travellers searched recently — refreshed daily.
Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo ; exchange rates: ECB reference. Data updated 2026-07-24. Some links earn Stayonomy a commission at no cost to you.