Cheap flights from Seattle to Istanbul from $373

In general, February is the cheapest month to fly from Seattle to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $697. If you don’t want to visit Istanbul Airport in February, then you should wait until November to fly from Seattle, when ticket prices are also cheap, with an average price of $760.

Our data shows that Wednesday is the least expensive day to fly to Istanbul Airport. Tickets to fly out on this day can be as low as $983. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,054.

In the afternoon is the cheapest time of day to fly from Seattle to Istanbul Airport when you can find flight prices for as low as $778. Flying to Istanbul Airport in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $1,100.

Fly from Seattle/Tacoma Intl to Istanbul for the best Seattle/Tacoma Intl - Istanbul flight prices

You are more likely to see cheaper flights to Istanbul Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $948 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul Airport from Seattle for as low as $765 on momondo.

You could potentially save up to 31% on your flight if you consider stops on a Seattle to Istanbul Airport flight.

As of May 2026, prices for Seattle to Istanbul Airport flights are approximately 19% cheaper when compared to flights at the same time last year.

Historically, on average around 18% of flights between Seattle and Istanbul have experienced a delay on any given week. The average delay length over the past 12 months has been 138 minutes.

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

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

According to our data, Turkish Airlines have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 23% of momondo users choosing 1-stop flights on this route connected there.

Flights via Amsterdam (AMS) offer the lowest average round-trip price of $760.

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 16h 59m.

Frankfurt am Main (FRA) has the shortest average layover time for this route: 3h 14m.