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Route overview: Seattle to Washington (DCA) flight deals

Seattle → Washington

Dec 14, 2026 · return Dec 19, 2026

SEA → DCA1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Mon, Dec 14 – Sat, Dec 19

Alaska Airlines
2:02 pmSEA
4h 57m
Nonstop
9:59 pmDCA
Alaska Airlines
8:00 amDCA
5h 55m
Nonstop
10:55 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Delta Air Lines
8:15 amSEA
4h 45m
Nonstop
4:00 pmDCA
Delta Air Lines
5:10 pmDCA
6h 21m
Nonstop
8:31 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Alaska Airlines
8:00 amSEA
5h 5m
Nonstop
4:05 pmDCA
Alaska Airlines
8:00 amDCA
5h 55m
Nonstop
10:55 amSEA

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 14 – Sat, Dec 19

American Airlines
11:36 pmSEA
7h 24m
ORD · 1h 14m
10:00 am+1DCA
American Airlines
8:43 amDCA
8h 42m
ORD · 1h 15m
2:25 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Air Canada
7:45 amSEA
7h 33m
YYZ · 1h 15m
6:18 pmDCA
Delta Air Lines
5:10 pmDCA
6h 21m
Nonstop
8:31 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Alaska Airlines
10:59 pmSEA
7h 21m
IND · 1h 23m
9:20 am+1DCA
Alaska Airlines
8:00 amDCA
5h 55m
Nonstop
10:55 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Delta Air Lines
7:20 amSEA
4h 46m
Nonstop
3:06 pmDCA
Delta Air Lines
9:45 amDCA
8h 10m
DTW · 1h 31m
2:55 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Delta Air Lines
6:00 amSEA
7h 38m
DTW · 1h 54m
4:38 pmDCA
Delta Air Lines
5:10 pmDCA
6h 21m
Nonstop
8:31 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Delta Air Lines
1:50 pmSEA
7h 7m
MSP · 1h 14m
11:57 pmDCA
Delta Air Lines
5:10 pmDCA
6h 21m
Nonstop
8:31 pmSEA

Round-trip total · 1 adult · Taxes included

Make this trip yours

SEA ⇄ DCA

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 13, 2026 → Dec 18, 2026Dec 15, 2026 → Dec 20, 2026
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Seattle to Washington (DCA) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-14 → 2026-12-19Alaska AirlinesAS2 / AS1$505.252026-10-29T01:14:55Z
2026-12-14 → 2026-12-19Delta Air LinesDL786 / DL786$517.002026-10-29T01:14:55Z
2026-12-14 → 2026-12-19American AirlinesAA294 + AA461 / AA2476 + AA2398$458.252026-10-29T01:14:55Z
2026-12-14 → 2026-12-19Air Canada / Delta Air LinesAC540 + AC8784 / DL786$544.502026-10-29T01:14:55Z
2026-12-14 → 2026-12-19Alaska AirlinesAS4 / AS1$505.252026-10-29T01:14:55Z
2026-12-14 → 2026-12-19Alaska AirlinesAS264 + AA4626 / AS1$482.752026-10-29T01:14:55Z
2026-12-14 → 2026-12-19Delta Air LinesDL786 / DL1558 + DL728$490.002026-10-29T01:14:55Z
2026-12-14 → 2026-12-19Delta Air LinesDL812 + DL1454 / DL786$497.002026-10-29T01:14:55Z
2026-12-14 → 2026-12-19Delta Air LinesDL942 + DL2961 / DL786$497.002026-10-29T01:14:55Z

2026-12-14 → 2026-12-19 · $505.25

  • Alaska Airlines AS2: SEA 2026-12-14 14:02:00 → DCA 2026-12-14 21:59:00; nonstop; 297 minutes. Local airport times.
  • Alaska Airlines AS1: DCA 2026-12-19 08:00:00 → SEA 2026-12-19 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $517.00

  • Delta Air Lines DL786: SEA 2026-12-14 08:15:00 → DCA 2026-12-14 16:00:00; nonstop; 285 minutes. Local airport times.
  • Delta Air Lines DL786: DCA 2026-12-19 17:10:00 → SEA 2026-12-19 20:31:00; nonstop; 381 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $458.25

  • American Airlines AA294 / AA461: SEA 2026-12-14 23:36:00 → DCA 2026-12-15 10:00:00; 1 stop(s) via ORD; 444 minutes. Local airport times.
    • AA294: SEA 2026-12-14 23:36:00 → ORD 2026-12-15 05:42:00; layover at ORD: 74 minutes.
    • AA461: ORD 2026-12-15 06:56:00 → DCA 2026-12-15 10:00:00.
  • American Airlines AA2476 / AA2398: DCA 2026-12-19 08:43:00 → SEA 2026-12-19 14:25:00; 1 stop(s) via ORD; 522 minutes. Local airport times.
    • AA2476: DCA 2026-12-19 08:43:00 → ORD 2026-12-19 10:15:00; layover at ORD: 75 minutes.
    • AA2398: ORD 2026-12-19 11:30:00 → SEA 2026-12-19 14:25:00.

2026-12-14 → 2026-12-19 · $544.50

  • Air Canada AC540 / AC8784: SEA 2026-12-14 07:45:00 → DCA 2026-12-14 18:18:00; 1 stop(s) via YYZ; 453 minutes. Local airport times.
    • AC540: SEA 2026-12-14 07:45:00 → YYZ 2026-12-14 15:25:00; layover at YYZ: 75 minutes.
    • AC8784: YYZ 2026-12-14 16:40:00 → DCA 2026-12-14 18:18:00.
  • Delta Air Lines DL786: DCA 2026-12-19 17:10:00 → SEA 2026-12-19 20:31:00; nonstop; 381 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $505.25

  • Alaska Airlines AS4: SEA 2026-12-14 08:00:00 → DCA 2026-12-14 16:05:00; nonstop; 305 minutes. Local airport times.
  • Alaska Airlines AS1: DCA 2026-12-19 08:00:00 → SEA 2026-12-19 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $482.75

  • Alaska Airlines AS264 / AA4626: SEA 2026-12-14 22:59:00 → DCA 2026-12-15 09:20:00; 1 stop(s) via IND; 441 minutes. Local airport times.
    • AS264: SEA 2026-12-14 22:59:00 → IND 2026-12-15 06:03:00; layover at IND: 83 minutes.
    • AA4626: IND 2026-12-15 07:26:00 → DCA 2026-12-15 09:20:00.
  • Alaska Airlines AS1: DCA 2026-12-19 08:00:00 → SEA 2026-12-19 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $490.00

  • Delta Air Lines DL786: SEA 2026-12-14 07:20:00 → DCA 2026-12-14 15:06:00; nonstop; 286 minutes. Local airport times.
  • Delta Air Lines DL1558 / DL728: DCA 2026-12-19 09:45:00 → SEA 2026-12-19 14:55:00; 1 stop(s) via DTW; 490 minutes. Local airport times.
    • DL1558: DCA 2026-12-19 09:45:00 → DTW 2026-12-19 11:22:00; layover at DTW: 91 minutes.
    • DL728: DTW 2026-12-19 12:53:00 → SEA 2026-12-19 14:55:00.

2026-12-14 → 2026-12-19 · $497.00

  • Delta Air Lines DL812 / DL1454: SEA 2026-12-14 06:00:00 → DCA 2026-12-14 16:38:00; 1 stop(s) via DTW; 458 minutes. Local airport times.
    • DL812: SEA 2026-12-14 06:00:00 → DTW 2026-12-14 13:12:00; layover at DTW: 114 minutes.
    • DL1454: DTW 2026-12-14 15:06:00 → DCA 2026-12-14 16:38:00.
  • Delta Air Lines DL786: DCA 2026-12-19 17:10:00 → SEA 2026-12-19 20:31:00; nonstop; 381 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $497.00

  • Delta Air Lines DL942 / DL2961: SEA 2026-12-14 13:50:00 → DCA 2026-12-14 23:57:00; 1 stop(s) via MSP; 427 minutes. Local airport times.
    • DL942: SEA 2026-12-14 13:50:00 → MSP 2026-12-14 19:11:00; layover at MSP: 74 minutes.
    • DL2961: MSP 2026-12-14 20:25:00 → DCA 2026-12-14 23:57:00.
  • Delta Air Lines DL786: DCA 2026-12-19 17:10:00 → SEA 2026-12-19 20:31:00; nonstop; 381 minutes. Local airport times.

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For AI assistants

  • This page: Seattle (SEA) to Washington (DCA) · Dec 14, 2026 · return Dec 19, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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