FLIGHT HOP.fyi

✈ SEA → HEL

9H 53M IN ECONOMY. PACK MELATONIN. PACK A NECK PILLOW. PACK REGRETS.

Flight time
9h 53m
Distance
4,768 mi
Or
7,673 km
Jet lag
10h

Flight from Seattle to Helsinki

From Sea-Tac (SEA), USA North America  →  Vantaa (HEL), Finland Europe

↔ Flying the other way? Helsinki → Seattle

How long is the flight from Seattle to Helsinki?

A nonstop flight from Seattle (SEA) to Helsinki (HEL) takes about 9 hours 53 minutes, covering a great-circle distance of 4,768 miles (7,673 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.

Avg flight time

9h 53m

Nonstop, scheduled

Distance

4,768 mi

7,673 km · great-circle

Avg speed

776 km/h

Door-to-door including taxi

Time zones & jet lag

Seattle timezone

UTC-7

America/Los_Angeles

Helsinki timezone

UTC+3

Europe/Helsinki

Time difference

+10h

10 hours ahead

Jet lag (rough)

~10d

Eastward — worse

CO₂ footprint per passenger

Economy class, single passenger. Source: DEFRA 2024 averages.

✈ Flight 1136 kg CO₂
🚗 Car (alone) 1312 kg CO₂
🚆 Train 315 kg CO₂

This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.

Flights from Seattle

Nearest destinations

Long-haul from Seattle

More flights to Europe

Flights to Helsinki

Nearest origins

Long-haul to Helsinki

More flights from North America