Seattle (SEA) to Washington DC (DCA) Flights from ₹10,697
Fares on this route currently start from ₹10,697. Compare live SEA to DCA prices, non-stop and connecting flights, departure times and airline choices before booking. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
SEA → DCAApprox. 3738.14 km04 Jun 2026Live inventory
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Showing 25
of 129
live flights
Delta Air Lines
DL-1239
19:59
06/04/2026
SEA
Seattle Tacoma International Airport
9h 46m
1 Stop
⏱ SLC · 0h 32mSLC Airport
05:45
06/05/2026
+1
BWI
Ronald Reagan Washington National Airport
₹10,697
per person
✕ Non-refundable5 fare options
Delta Air Lines
DL-943
06:00
06/04/2026
SEA
Seattle Tacoma International Airport
12h 4m
1 Stop
⏱ MSP · 3h 10mMSP Airport
18:04
06/04/2026
BWI
Ronald Reagan Washington National Airport
₹10,697
per person
✕ Non-refundable5 fare options
Frontier Airlines
F9-1176
19:50
06/04/2026
SEA
Seattle Tacoma International Airport
26h 8m
1 Stop
⏱ DEN · 16h 33mDEN Airport
21:58
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹12,352
per person
✕ Non-refundable
Frontier Airlines
F9-3406
15:19
06/04/2026
SEA
Seattle Tacoma International Airport
30h 39m
1 Stop
⏱ DEN · 21h 9mDEN Airport
21:58
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹12,352
per person
✕ Non-refundable
Frontier Airlines
F9-2408
20:20
06/04/2026
SEA
Seattle Tacoma International Airport
11h 52m
1 Stop
⏱ LAS · 1h 36mLAS Airport
08:12
06/05/2026
+1
IAD
Ronald Reagan Washington National Airport
₹12,396
per person
✕ Non-refundable
Frontier Airlines
F9-3406
15:19
06/04/2026
SEA
Seattle Tacoma International Airport
21h 40m
1 Stop
⏱ DEN · 12h 13mDEN Airport
12:59
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹12,927
per person
✕ Non-refundable
Frontier Airlines
F9-1176
19:50
06/04/2026
SEA
Seattle Tacoma International Airport
17h 9m
1 Stop
⏱ DEN · 7h 37mDEN Airport
12:59
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹12,927
per person
✕ Non-refundable
American Airlines
AA-2881
23:58
06/04/2026
SEA
Seattle Tacoma International Airport
10h 15m
1 Stop
⏱ ORD · 1h 11mORD Airport
10:13
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹13,035
per person
✓ Refundable24 fare options
American Airlines
AA-2881
23:58
06/04/2026
SEA
Seattle Tacoma International Airport
10h 57m
1 Stop
⏱ ORD · 2h 1mORD Airport
10:55
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹13,035
per person
✓ Refundable24 fare options
Southwest Airlines
WN-2304
23:05
06/04/2026
SEA
Seattle Tacoma International Airport
9h 40m
1 Stop
⏱ MDW · 1h 0mMDW Airport
08:45
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹13,517
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-2304
23:05
06/04/2026
SEA
Seattle Tacoma International Airport
12h 5m
1 Stop
⏱ MDW · 3h 15mMDW Airport
11:10
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹13,517
per person
✕ Non-refundable4 fare options
Delta Air Lines
DL-541
16:05
06/04/2026
SEA
Seattle Tacoma International Airport
8h 8m
Non-stop
00:13
06/05/2026
+1
IAD
Ronald Reagan Washington National Airport
₹13,925
per person
✕ Non-refundable6 fare options
alaskaairlines
AS-348
15:53
06/04/2026
SEA
Seattle Tacoma International Airport
8h 6m
Non-stop
23:59
06/04/2026
IAD
Ronald Reagan Washington National Airport
₹14,204
per person
✕ Non-refundable9 fare options
Frontier Airlines
F9-3406
15:19
06/04/2026
SEA
Seattle Tacoma International Airport
25h 40m
1 Stop
⏱ DEN · 16h 10mDEN Airport
16:59
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹14,850
per person
✕ Non-refundable
Frontier Airlines
F9-1176
19:50
06/04/2026
SEA
Seattle Tacoma International Airport
21h 9m
1 Stop
⏱ DEN · 11h 34mDEN Airport
16:59
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹14,850
per person
✕ Non-refundable
American Airlines
AA-2922
06:00
06/04/2026
SEA
Seattle Tacoma International Airport
12h 0m
1 Stop
⏱ ORD · 2h 38mORD Airport
18:00
06/04/2026
DCA
Ronald Reagan Washington National Airport
₹14,932
per person
✓ Refundable24 fare options
Delta Air Lines
DL-786
07:20
06/04/2026
SEA
Seattle Tacoma International Airport
8h 8m
Non-stop
15:28
06/04/2026
DCA
Ronald Reagan Washington National Airport
₹16,285
per person
✕ Non-refundable6 fare options
alaskaairlines
AS-650
09:00
06/04/2026
SEA
Seattle Tacoma International Airport
12h 0m
1 Stop
⏱ SAN · 0h 52mSAN Airport
21:00
06/04/2026
DCA
Ronald Reagan Washington National Airport
₹16,643
per person
✕ Non-refundable7 fare options
alaskaairlines
AS-1367
07:26
06/04/2026
SEA
Seattle Tacoma International Airport
13h 34m
1 Stop
⏱ SAN · 2h 21mSAN Airport
21:00
06/04/2026
DCA
Ronald Reagan Washington National Airport
₹16,643
per person
✕ Non-refundable7 fare options
alaskaairlines
AS-664
06:26
06/04/2026
SEA
Seattle Tacoma International Airport
14h 34m
1 Stop
⏱ SAN · 3h 28mSAN Airport
21:00
06/04/2026
DCA
Ronald Reagan Washington National Airport
₹16,643
per person
✕ Non-refundable7 fare options
Southwest Airlines
WN-3619
11:05
06/04/2026
SEA
Seattle Tacoma International Airport
12h 50m
1 Stop
⏱ HOU · 2h 30mHOU Airport
23:55
06/04/2026
DCA
Ronald Reagan Washington National Airport
₹17,352
per person
✕ Non-refundable4 fare options
alaskaairlines
AS-367
23:30
06/04/2026
SEA
Seattle Tacoma International Airport
8h 4m
Non-stop
07:34
06/05/2026
+1
IAD
Ronald Reagan Washington National Airport
₹18,121
per person
✕ Non-refundable9 fare options
United Airlines
UA-2379
23:57
06/04/2026
SEA
Seattle Tacoma International Airport
11h 59m
1 Stop
⏱ IAH · 1h 28mIAH Airport
11:56
06/05/2026
+1
DCA
Ronald Reagan Washington National Airport
₹18,133
per person
✕ Non-refundable10 fare options
United Airlines
UA-1274
23:00
06/04/2026
SEA
Seattle Tacoma International Airport
12h 28m
1 Stop
⏱ EWR · 2h 47mEWR Airport
11:28
06/05/2026
+1
IAD
Ronald Reagan Washington National Airport
₹18,133
per person
✕ Non-refundable8 fare options
United Airlines
UA-688
08:00
06/04/2026
SEA
Seattle Tacoma International Airport
8h 9m
Non-stop
16:09
06/04/2026
IAD
Ronald Reagan Washington National Airport
₹18,149
per person
✕ Non-refundable8 fare options
😕 No flights match your filters.
Seattle (SEA)
📍 Seattle Tacoma International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 47.449001
📐 Longitude: -122.308998
Washington DC (DCA)
📍 Ronald Reagan Washington National Airport
🌍 United States
🕐 GMT -5
📐 Latitude: 38.8521
📐 Longitude: -77.037697
✈ Distance: Seattle,USA to Washington DC,USA — 3738.14 km
📅 Results on this page are loaded for 04 Jun 2026. Click View all flights for the complete live search.
Seattle to Washington DC — what to expect when booking
The SEA–DCA route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Seattle,USA and Washington DC,USA is approximately
3738.14 km.
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❓ Frequently asked questions — Seattle to Washington DC flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Seattle,USA (SEA) and Washington DC,USA (DCA) is approximately 3738.14 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.