€402 Cheap flights to Washington

93% of momondo users visit Seattle more often than any other city in State of Washington. When travelling to Seattle, typically the most convenient airport to fly into is Seattle Airport.

State of Washington typically has a temperature range from 5 °C(December) to 19 °C(July). Those looking to avoid rain and/or snow while visiting State of Washington should plan their trip in July, August, or September, as these months are relatively less likely to have precipitation.

Of the 3 airlines that fly to State of Washington, Aer Lingus, Icelandair and British Airways happen to be the most favoured based on our user data. Aer Lingus is the most popular among the three airlines, with 55% of users choosing them for their travels to State of Washington.

Flights to State of Washington can be found for as cheap as €474 per ticket. However our users tend to find airfares to State of Washington for around €712 on average. If you’re looking to find a good deal on your flight to State of Washington, then you should consider booking if you find anything for €495 or less.

If your travel plans are flexible and you’re looking to save money on flights to State of Washington, then be sure to book your departure on a Thursday. Flying out on a Thursday, as well as a Saturday, is your best option. Departing on a Monday tends to be the most expensive day of the week to fly to State of Washington.

Prices for flights to Washington are refreshed on a daily basis.

The number of operators available for flights to Washington is 4 as of November 2025.

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Washington.

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.