Dulles International Airport IAD to Seattle, WA SEA Flights

Cheap plane tickets from Dulles International Airport to Seattle, WA can start from as little as $512 (€421) when you book in advance. The average flight ticket price for Dulles International Airport to Seattle, WA is $512 (€421) ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.

The average journey time by plane from Dulles International Airport to Seattle, WA is 6h 1m to travel the 2300 miles (3703 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.

The earliest flight from Dulles International Airport to Seattle, WA leaves at 10:55 PM. Plan your trip with the Journey Planner from Omio.

The latest flight from Dulles International Airport to Seattle, WA leaves at 10:55 PM.

The cheapest month for a flight from Dulles International Airport to Seattle, WA is November.

It's helpful to compare your options as there are 2 ways to travel between Dulles International Airport and Seattle, WA including taking a train and flight.

Since neither Dulles International Airport nor Seattle, WA are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.

There is a time difference of 3 h between Dulles International Airport and Seattle, WA all year round.

Some of the most interesting sights to explore in Seattle, WA are:

• Space Needle, an iconic observation tower offering panoramic views of Seattle and its surroundings
• Pike Place Market, a historic public market known for fresh produce, seafood, and local crafts
• Chihuly Garden and Glass, an exhibition showcasing the vibrant glass art of Dale Chihuly
• Museum of Pop Culture, a museum dedicated to contemporary popular culture with interactive exhibits
• Seattle Art Museum, a leading art museum featuring diverse collections from around the world.

The best events to attend in Seattle, WA include:

• Seafair, a summer festival featuring hydroplane races, parades, and cultural events
• Seattle International Film Festival, one of the largest film festivals in the U.S. showcasing independent films
• Bumbershoot, an annual music and arts festival held over Labor Day weekend
• Seattle Pride Parade, a celebration of LGBTQ+ pride with a colorful parade through downtown.

The best holidays to experience in Seattle, WA include:

• Independence Day, fireworks and celebrations marking the nation's birthday
• Thanksgiving, a time for family gatherings and seasonal festivities
• Christmas, holiday lights and decorations creating a festive atmosphere
• New Year's Eve, lively celebrations welcoming the new year with fireworks and events.

The best things to do in Seattle, WA include:

• Take a ferry ride to Bainbridge Island for stunning views of the Seattle skyline and a charming small-town experience
• Explore the vibrant neighborhoods of Capitol Hill and Fremont, known for their eclectic shops, cafes, and street art
• Visit the Seattle Aquarium to discover marine life native to the Pacific Northwest
• Enjoy a scenic walk or bike ride along the Burke-Gilman Trail
• Experience a live performance at the historic Paramount Theatre, offering a variety of shows from Broadway to concerts.

The best season to visit Seattle, WA is Spring or Fall. The best weather to explore Seattle, WA is during April-June or September-November.

For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.

Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.

Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.

The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.

The currency used in the United States is the US Dollar (USD). For travelers, using cards is generally more convenient and widely accepted, especially credit and debit cards, while cash is useful for small purchases or places that do not accept cards.

In Seattle, WA, travelers should be cautious of pickpocketing and vehicle break-ins, especially in crowded areas and popular tourist spots like Pike Place Market. Scams involving fake charity collectors and street performers asking for money are common. It's advisable to stay alert in public transit and avoid unlicensed taxis. Travelers should also be aware of occasional aggressive panhandling in certain neighborhoods.

Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.