Cheap flights from Washington, D.C. Dulles Intl Airport to Seattle from £70

Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 13 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Seattle for under £300. The cheapest flight booked recently is on Delta for just £218, but on average you can expect to pay £238.

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to Seattle under £300. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Seattle is less than £276.

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Seattle within the next 7 days for less than £400.

You can find direct flights on the following days: Sunday, Wednesday, Thursday, Friday.

On average, you can expect to see 7 flights from Washington, D.C. Dulles Intl Airport to Seattle a day.
Morning (6am - Midday) - 100% of flight departures

Delta, Alaska Airlines, and Sun Country Air can get you from Washington, D.C. Dulles Intl Airport to Seattle in just under 5h 46m. Your travel time can differ by up to 8h 40m. The distance from Washington, D.C. Dulles Intl Airport to Seattle is about 2313 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Seattle is Delta. Our recent data shows that you can find tickets from as low as £218 on this airline. Additional options worth looking into are Alaska Airlines and Sun Country Air, starting at £225 and £233 round-trip. Delta is 28% cheaper than the average price of flights available within the next 90 days to this destination.

The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as £70. However, be on the lookout for offers from Delta and Sun Country Air, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Seattle for a low price.

The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Seattle are United Airlines (82%), KLM (72%) and Ethiopian Air (71%).

Great question - IAD to SEA just means Washington, D.C. Dulles Intl Airport to Seattle/Tacoma Intl Airport. Now you’ll know what these unique codes when you look for flights!

The amount of baggage you can bring on your Dulles Intl to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter Dulles Intl to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on Dulles Intl to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Seattle.

Yes. Cheapflights offers flight deals from Dulles Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from Dulles Intl to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on Dulles Intl to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The Washington, D.C. Dulles Intl Airport to Seattle flight deals you see on this page were last updated on 18/6.

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Seattle (average of £576). Flying from Washington, D.C. Dulles Intl Airport to Seattle in July is currently the most expensive (average of £823). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.