Cheap flights from Seattle to Washington D.C. from $0
Compare prices across airlines and find the best deals
|
Discover deals on Seattle to Washington D.C. flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from Seattle to Washington D.C.
Best
8 Feb
DEP
08:30
SEA
16:26
IAD
4h 56m
8 Feb
DEPARTURE
08:30 - 16:26
4h 56m
SEA
IAD
8 Feb
DEP
08:30
SEA
16:26
IAD
4h 56m
8 Feb
DEPARTURE
08:30 - 16:26
4h 56m
SEA
IAD
American Airlines flights from Seattle to Washington D.C.
Our best American Airlines deals on Seattle to Washington D.C. tickets
Best
1 stop
8 Feb
DEP
06:00
SEA
1×
16:31
IAD
7h 31m
8 Feb
DEPARTURE
06:00 - 16:31
7h 31m
SEA
1 stop
IAD
1 stop
8 Feb
DEP
07:00
SEA
1×
17:16
IAD
7h 16m
8 Feb
DEPARTURE
07:00 - 17:16
7h 16m
SEA
1 stop
IAD
Alaska Airlines flights from Seattle to Washington D.C.
Our best Alaska Airlines deals on Seattle to Washington D.C. tickets
Best
8 Feb
DEP
08:30
SEA
16:26
IAD
4h 56m
8 Feb
DEPARTURE
08:30 - 16:26
4h 56m
SEA
IAD
8 Feb
DEP
08:30
SEA
16:26
IAD
4h 56m
8 Feb
DEPARTURE
08:30 - 16:26
4h 56m
SEA
IAD
Hawaiian Airlines flights from Seattle to Washington D.C.
Our best Hawaiian Airlines deals on Seattle to Washington D.C. tickets
Best
8 Feb
DEP
08:30
SEA
16:26
IAD
4h 56m
8 Feb
DEPARTURE
08:30 - 16:26
4h 56m
SEA
IAD
What's the cheapest day of the week to fly from Seattle to Washington D.C.?
If your flying dates are flexible, you should consider flying to Washington D.C. on a Wed, as we generally find the cheapest rates on that day. On the other hand, Fri is the most expensive day to fly.
What is the cheapest month to fly from Seattle to Washington D.C.?
The cheapest month for flights from Seattle to Washington D.C. is Sep, where tickets cost $393 on average. The most expensive months are Jul.
JanFebMarAprMayJunJulAugSepOctNovDec
$567$480$393
Travellers love booked.ai
54,007
searches in the past 7 days
460
searches for Seattle to Washington D.C.
Everything you should know
Cheapest one-way flight
$420
Typical prices: $420–$840
When to book
3 weeks
in advance to save around 25%
Good to know
💰
Save money
Compare prices across airlines to find the best deal. Prices can vary significantly.
📅
Be flexible
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
⏰
Book early
Booking 3+ weeks in advance typically offers the best prices.
✓IATA accredited — Book with confidence through an IATA-accredited travel agent
✓Track prices — Not ready to book? Create a price alert for when prices drop
✓Free to use — There are no hidden charges or fees
Frequently asked questions
The cheapest flight from Seattle to Washington D.C. currently costs AUD $420. Prices typically range from $420 to $420. Prices change frequently, so we recommend booking early and being flexible with your travel dates.