Featured airlines
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 40% on select hotels after you book a flight*
Plan, book, fly with confidence
Cheap Flights from Washington (IAD) to Seattle (SEA)
Prices were available within the past 7 days and start at ฿5,270 for one-way flights and ฿18,340 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿18,340 Return, found 3 days ago
฿18,340
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿18,760 Return, found 3 days ago
฿18,760
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿19,130 Return, found 3 days ago
฿19,130
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿20,570 Return, found 3 days ago
฿20,570
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿20,600 Return, found 3 days ago
฿20,600
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿20,935 Return, found 3 days ago
฿20,935
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿20,955 Return, found 3 days ago
฿20,955
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿20,975 Return, found 3 days ago
฿20,975
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿21,330 Return, found 3 days ago
฿21,330
Return
found 3 days ago
Fri, 31 May - Wed, 19 Jun
IAD
Washington
SEA
Seattle
฿21,345 Return, found 3 days ago
฿21,345
Return
found 3 days ago
Origin airport | Washington Dulles Intl. |
Destination airport | Seattle - Tacoma Intl. |
Return price | ฿18,340 |
Distance | 3679 km |
Average flight time | 2 hours 41 mins |
Perfect flights from Washington to Seattle
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to Seattle. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
Picture yourself strolling through the streets of Seattle, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
Our flexible Washington Dulles Intl. to Seattle - Tacoma Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿5,270 and roundtrip prices from ฿18,340. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Seattle - Tacoma Intl. and explore Seattle and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your IAD to SEA travel arrangements today and embark on the journey of a lifetime in Seattle.
Frequently asked questions
- Trending Routes
- Trending Flights
- Top Flights Destinations
- Related Airlines
- Nearby Airports
- Cheap Flights from Other Airports
- Expedia's Latest Trends
Top Routes from Washington
Top Routes to Seattle
- Los Angeles to Seattle (LAX - SEA)
- Bangkok to Seattle (BKK - SEA)
- Kuala Lumpur to Seattle (KUL - SEA)
- Miami to Seattle (MIA - SEA)
- Fort Lauderdale to Seattle (FLL - SEA)
- Chiang Mai to Seattle (CNX - SEA)
- Phuket to Seattle (HKT - SEA)
- Houston to Seattle (IAH - SEA)
- Seoul to Seattle (ICN - SEA)
- Atlanta to Seattle (ATL - SEA)
- Singapore to Seattle (SIN - SEA)
Top Routes from Washington
Top Flight Destinations
- Flights to Las Vegas
- Flights to New York
- Flights to Orlando
- Flights to Chicago
- Flights to San Diego
- Flights to Myrtle Beach
- Flights to Los Angeles
- Flights to Miami
- Flights to Nashville
- Flights to Boston
- Flights to Key West
- Flights to Honolulu
- Flights to San Francisco
- Flights to New Orleans
- Flights to Houston
- Flights to Atlanta
- Flights to Seattle
- Flights to San Antonio
- Flights to Washington
Washington Airports
Baltimore
Washington
Flights
Flights from NYC-All Airports to Caojiabao Intl.Flights from Suvarnabhumi Intl. to QLA-All AirportsFlights from Suvarnabhumi Intl. to NYC-All AirportsFlights from Bangkok (BKK) to San Diego (SAN)Flights from Bangkok (BKK) to Cleveland (CLE)Flights from Bangkok (BKK) to Fort Lauderdale (FLL)Flights from Caojiabao Intl. to NYC-All AirportsFlights from Bangkok (BKK) to Omaha (OMA)Flights from San Diego (SAN) to Satuk (BFV)Flights from Bangkok (BKK) to Boston (BOS)Flights from Bangkok (BKK) to Houston (HOU)Flights from Bangkok (BKK) to Dallas (DFW)Flights from San Diego (SAN) to Greenland (JAV)Flights from Dallas (DFW) to Miami (MIA)Flights from Bangkok (BKK) to Richmond (RIC)Flights from Bangkok (BKK) to Anchorage (ANC)Flights from Dallas (DFW) to Bangkok (BKK)Flights from Las Vegas (LAS) to San Francisco (SFO)Flights from St. Louis (STL) to Bangkok (BKK)Flights from San Francisco (SFO) to Las Vegas (LAS)Flights from Los Angeles (LAX) to Las Vegas (LAS)Flights from Greenland (JAV) to St. Louis (STL)Flights from Bangkok (BKK) to St. Louis (STL)Flights from Bangkok (BKK) to Philadelphia (PHL)Flights from Boston (BOS) to Greenland (JAV)Flights from Cleveland (CLE) to Bangkok (BKK)Flights from Boston (BOS) to Bangkok (BKK)Flights from Las Vegas (LAS) to Bangkok (BKK)Flights from Bangkok (BKK) to Pittsburgh (PIT)Flights from Bangkok (BKK) to Las Vegas (LAS)
*Available to Expedia members.