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Cheap flights Seattle — Washington

Seattle (SEA, US) Washington (DCA, US)
from $144 3 737 km ~4h 54m 9 flights found 2 airlines cheapest on Sunday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $144 on 12.12.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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Fr
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Su
December 2026
Mo
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Su
January 2027
Mo
Tu
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Prices found for 4 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
13 Dec 2026, Sun
Frontier Airlines F9 1916
03:58
SEA Seattle-Tacoma International Airport
10:13
DCA Ronald Reagan National Airport
6h 15m 1 stop
Kiwi.com
$144
View this ticket
13 Dec 2026, Sun
Alaska Airlines AS 002
01:02
SEA Seattle-Tacoma International Airport
05:59
DCA Ronald Reagan National Airport
4h 57m Direct
Farehutz
$167
View this ticket
14 Nov 2026, Sat
Frontier Airlines F9 3406
03:27
SEA Seattle-Tacoma International Airport
09:39
DCA Ronald Reagan National Airport
6h 12m 1 stop
Kiwi.com
$248
View this ticket
14 Nov 2026, Sat
Alaska Airlines AS 002
00:57
SEA Seattle-Tacoma International Airport
05:59
DCA Ronald Reagan National Airport
5h 2m Direct
Wowtickets
$350
View this ticket
15 Nov 2026, Sun
Alaska Airlines AS 004
19:00
SEA Seattle-Tacoma International Airport
00:20
DCA Ronald Reagan National Airport
5h 20m Direct
Wowtickets
$386
View this ticket
Route characteristics
Distance
3 737 km
Flight time
4h 54m
Time difference
+3h
Minimum price
from $144 (12.12.2026)
Average price
$231
Maximum price
$386
Departures per week
1
Cheapest day
Sunday
Departure airports (1)
SEA Seattle-Tacoma International Airport
Arrival airports (1)
DCA Ronald Reagan National Airport
Airlines (2)
F9 Frontier Airlines AS Alaska Airlines
Agencies (5)
Kiwi.com Farehutz Farera Flightnetwork Wowtickets
Prices by day of week
Saturday
$248
avg $299
Sunday
$144
avg $232
Cheapest
Price trend by month
November 2026
from $248
avg $328
3 flights
December 2026
from $144
avg $156
2 flights
Airlines — cheapest prices 2
Frontier Airlines
Frontier Airlines
Low-cost 4 flights · 4 days
$144
Alaska Airlines
Alaska Airlines
5 flights · 5 days
$167
Where to buy tickets 5
Kiwi.com
2 tickets · 2 days
from $144
Farehutz
1 tickets · 1 days
from $167
Farera
1 tickets · 1 days
from $275
Flightnetwork
1 tickets · 1 days
from $286
Wowtickets
4 tickets · 4 days
from $350
Airports

From — Seattle (1)

  • SEA Seattle-Tacoma International Airport

To — Washington (1)

  • DCA Ronald Reagan National Airport
Other destinations from Seattle
Port Angeles
US
Eastsound
US
Friday Harbor
US
Seattle
US
Burbank
US
Denver
US · Hub
Dallas
US · Hub
Newark
US · Hub
Ketchikan
US
Los Angeles
US · Hub
Long Beach
US
Miami
US · Hub
Frequently asked questions about the route Seattle — Washington
How long is the flight from Seattle to Washington?
Approximate flight time — 4h 54m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Seattle to Washington?
The straight-line distance — 3 737 km.
How much do flights from Seattle to Washington cost?
The minimum price over 3 months — from $144 on 12.12.2026.
What is the average ticket price?
The average price — $231. Range: $144 — $386.
What is the time difference between Seattle and Washington?
The difference — +3h.
From which airports does Seattle operate flights?
From Seattle: SEA (Seattle-Tacoma International Airport).
To which airports in Washington do flights arrive?
To Washington: DCA (Ronald Reagan National Airport).
Which airlines fly this route?
This route is served by 2 airlines: Frontier Airlines, Alaska Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $167. Total direct flights found: 3.
Which day of the week is cheapest?
The cheapest day of the week — Sunday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Seattle — Washington

Flights Seattle — Washington is a popular route. The straight-line distance is 3 737 km. Flight time 4h 54m. Time difference +3h.

From Seattle (SEA) flights depart from 1 airport: SEA. To Washington (DCA) — 1 arrival airport: DCA.

2 airlines operate on this route: Frontier Airlines, Alaska Airlines.

The minimum price for the next 3 months — from $144 (12.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $231, ranging from $144 to $386. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Sunday.

Other destinations in United States from Seattle
Port Angeles
US
Eastsound
US
Friday Harbor
US
Seattle
US
Burbank
US
Denver
US
Dallas
US
Newark
US

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