Cheap flights from Helsinki to Seattle from R9 135

The cheapest month to fly to Seattle from Helsinki is in September. Flight prices, which tend to average around R13 906, are often lower during this time because this is during the off-season. If you aren’t able to travel to Seattle during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of R13 987.

You are more likely to see cheaper flights to Seattle from Helsinki when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around R15 442 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Helsinki for as low as R12 964 on momondo.

Historically, on average around 38% of flights between Helsinki and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 102 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, Finnair have had the fewest delays on this route over the last 12 months, with about 38% of their flights experiencing any sort of delay.

1 flights are operational daily from Helsinki to Seattle as of September 2026. The most popular departure time for this route is 16:00, with 100% of flights per day taking off in the afternoon.

The number of flights available between Helsinki and Seattle is 9 per week as of September 2026. The most frequent departure day is Mon, with 56% of weekly flights leaving on this day.