Cheap flights to Seattle
Best observed return fare to Seattle (United States): €548 from Brussels in October 2026. The table compares plane tickets to Seattle from 2 departure cities, from our daily readings of fares actually observed (recorded on Oct 4). To weigh Seattle against other trips within the same budget, open the interactive cheap flights map.
Fares to Seattle by departure city
Return, per person, latest fare recorded for each city and month — the green cell is the best price. Click a city for its full 12-month calendar. The final price is confirmed with the partner at booking time.
When to go to Seattle: weather month by month
- 4 °Jan
- 5 °Feb
- 8 °Mar
- 11 °Apr
- 13 °May
- 17 °Jun
- 20 °Jul
- 20 °Aug
- 17 °Sep
- 12 °Oct
- 10 °Nov
- 8 °Dec
Average monthly temperatures observed over the last full year (Open-Meteo), not a forecast. Months above 20 °C: August.
Costs on the ground
Budget around €160 per person per day in Seattle for simple accommodation, meals and local transport (country average, activities excluded). For five days departing from Brussels at the best observed fare, the total comes to about €1348, flight included. Breakdown by trip length, travel style and departure city: how much do 5 days in Seattle cost?
Things to do in Seattle
Plan your trip
Frequently asked questions
Which city has the cheapest flights to Seattle?
From our readings over the last three days, the best return fare to Seattle is €548 departing from Brussels, for a trip in October 2026. Fares from the other cities we track go up to €826.
How much is a plane ticket to Seattle?
In recent searches, a return flight to Seattle costs between €548 and €826 depending on the departure city and the month. These fares are actually observed and dated; the final price is confirmed with the partner at booking time.
When is the best time to visit Seattle?
The warmest months in Seattle are August, July, September. Compare that with the price calendar of each route: the cheapest months are usually outside school holidays.
All routes to Seattle
Where do these prices come from?
The fares shown are real observed prices from recent flight searches (round trip, per person), refreshed continuously. They give a reliable snapshot of the market, but can change hour to hour: the final price is always verified with the booking partner when you book.
To go further, the Fareaway interactive map puts all these destinations on a world map: set your budget and dates and instantly see where you can go — including that month's weather, local cost of living and visa requirements.