Flight Routes from Seattle Tacoma to Washington DC
Compare cheap outbound and return flights from Seattle-Tacoma (SEA) to Washington-DC (WAS)and find the best offer from numerous airlines and travel agencies.
Fastest outbound flight
Fastest inbound flight
non-stop flights
95x / week
Flight distance
3,741 km
Time difference
Airports in Washington-DC
Dulles International Airport, DCIAD
Ronald Reagan National Airport, VADCA
Most popular airlines
Alaska Airlines
Delta Air Lines
United Airlines
Flight schedule from Seattle-Tacoma (SEA) to Washington-DC (WAS)
Select a travel date in the flight schedule for the route from Seattle-Tacoma (SEA) to Washington-DC (WAS) and compare affordable flight deals.
offers
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Matching outbound flights14 of 14
fromto
dep.arr.
durationstopovers
September 13 – 19, 2026
September 20 – 26, 2026
Sep 27 – Oct 3, 2026
SEADCA
nonstop
SEADCA
nonstop
SEAIAD
nonstop
SEAIAD
nonstop
SEAIAD
nonstop
SEADCA
nonstop
SEAIAD
nonstop
SEAIAD
nonstop
SEAIAD
nonstop
SEAIAD
nonstop
SEAIAD
nonstop
SEAIAD
nonstop
SEAIAD
nonstop
SEADCA
1 stopover
Important flight information
Frequently Asked Questions (FAQ)
How long is the flight from Seattle-Tacoma to Washington-DC?
A nonstop flight from Seattle-Tacoma to Washington-DC typically takes around 5 hours 8 minutes. If you choose a connecting flight, allow more travel time. Typical one-stop itineraries take around 8 hours 54 minutes. For the quickest trip, a nonstop flight is usually the most comfortable choice.
Are there nonstop flights from Seattle-Tacoma to Washington-DC?
Yes, there are nonstop flights from Seattle-Tacoma to Washington-DC, averaging around 13 to 14 flights per day, operated by, among others, Alaska Airlines, Delta and United Airlines. If you want to fly without a layover, it is worth filtering specifically for nonstop flights when searching.
Which airlines fly from Seattle-Tacoma to Washington-DC?
Direct flights from Seattle-Tacoma to Washington-DC are operated by, among others, Alaska Airlines, Delta and United Airlines. Connecting flights with one stop are also available, for example with United Airlines (via Houston - George Bush), Frontier Airlines (via Denver) and Alaska Airlines (via Los Angeles). If travel time matters to you, a direct flight is usually the most convenient option. Connecting flights often give you more choice of departure times and airlines.
On which days are there nonstop flights from Seattle-Tacoma to Washington-DC?
Nonstop flights from Seattle-Tacoma to Washington-DC operate daily. The schedule may vary by season, so it is worth comparing several travel dates. If your preferred day does not have a nonstop flight, nearby departure days or short connecting flights may be a good alternative.
How many flights are there per day from Seattle-Tacoma to Washington-DC?
From Seattle-Tacoma to Washington-DC, there are on average around 13 to 14 flights per day. This usually means you have a good choice of departure times. If you are flexible, you can easily compare times, prices, and airlines.
How many flights per week are there from Seattle-Tacoma to Washington-DC?
From Seattle-Tacoma to Washington-DC, there are around 95 to 96 flights per week. This means you usually have connections available on several days and at various times. Beyond the price, it is worth comparing flight duration, airline, and any potential additional fees.
When does the first flight from Seattle-Tacoma to Washington-DC depart?
The earliest nonstop flight from Seattle-Tacoma to Washington-DC usually departs at 7:23 AM. The exact departure time may vary by day of the week and airline. Early flights are especially useful if you want to make the most of your arrival day in Washington-DC.
When does the last flight from Seattle-Tacoma to Washington-DC depart?
The last nonstop flight from Seattle-Tacoma to Washington-DC usually departs at 11:15 PM. Late flights can be convenient if you want to travel after work or in the evening. Do check whether it is a nonstop flight, as a connecting itinerary could push the arrival time significantly later.
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