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Route overview: Seattle to Washington (DCA) flight deals

Seattle → Washington

Dec 21, 2026 · return Dec 23, 2026

SEA → DCA1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Wed, Dec 23

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

Mon, Dec 21 – Wed, Dec 23

Delta Air Lines
8:15 amSEA
4h 45m
Nonstop
4:00 pmDCA
Delta Air Lines
4:25 pmDCA
6h 2m
Nonstop
7:27 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

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

One-stop flights

Mon, Dec 21 – Wed, Dec 23

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 21 – Wed, Dec 23

Air Canada
7:45 amSEA
7h 33m
YYZ · 1h 15m
6:18 pmDCA
Alaska Airlines
8:00 amDCA
5h 55m
Nonstop
10:55 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

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 21 – Wed, Dec 23

Delta Air Lines
1:50 pmSEA
7h 7m
MSP · 1h 14m
11:57 pmDCA
Delta Air Lines
4:25 pmDCA
6h 2m
Nonstop
7:27 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

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 21 – Wed, Dec 23

Delta Air Lines
6:00 amSEA
7h 38m
DTW · 1h 54m
4:38 pmDCA
Delta Air Lines
4:25 pmDCA
6h 2m
Nonstop
7:27 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 20, 2026 → Dec 22, 2026Dec 22, 2026 → Dec 24, 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)
2026-12-21 → 2026-12-23Alaska AirlinesAS4 / AS1$580.502026-10-29T01:14:55Z
2026-12-21 → 2026-12-23Delta Air LinesDL786 / DL786$594.002026-10-29T01:14:55Z
2026-12-21 → 2026-12-23American AirlinesAA294 + AA461 / AA2476 + AA2398$526.502026-10-29T01:14:55Z
2026-12-21 → 2026-12-23Air Canada / Alaska AirlinesAC540 + AC8784 / AS1$624.382026-10-29T01:14:55Z
2026-12-21 → 2026-12-23Alaska AirlinesAS2 / AS1$580.502026-10-29T01:14:55Z
2026-12-21 → 2026-12-23Alaska AirlinesAS264 + AA4626 / AS1$550.132026-10-29T01:14:55Z
2026-12-21 → 2026-12-23Delta Air LinesDL942 + DL2961 / DL786$567.002026-10-29T01:14:55Z
2026-12-21 → 2026-12-23Delta Air LinesDL786 / DL1558 + DL728$567.002026-10-29T01:14:55Z
2026-12-21 → 2026-12-23Delta Air LinesDL812 + DL1454 / DL786$567.002026-10-29T01:14:55Z

2026-12-21 → 2026-12-23 · $580.50

  • Alaska Airlines AS4: SEA 2026-12-21 08:00:00 → DCA 2026-12-21 16:05:00; nonstop; 305 minutes. Local airport times.
  • Alaska Airlines AS1: DCA 2026-12-23 08:00:00 → SEA 2026-12-23 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $594.00

  • Delta Air Lines DL786: SEA 2026-12-21 08:15:00 → DCA 2026-12-21 16:00:00; nonstop; 285 minutes. Local airport times.
  • Delta Air Lines DL786: DCA 2026-12-23 16:25:00 → SEA 2026-12-23 19:27:00; nonstop; 362 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $526.50

  • American Airlines AA294 / AA461: SEA 2026-12-21 23:36:00 → DCA 2026-12-22 10:00:00; 1 stop(s) via ORD; 444 minutes. Local airport times.
    • AA294: SEA 2026-12-21 23:36:00 → ORD 2026-12-22 05:42:00; layover at ORD: 74 minutes.
    • AA461: ORD 2026-12-22 06:56:00 → DCA 2026-12-22 10:00:00.
  • American Airlines AA2476 / AA2398: DCA 2026-12-23 08:43:00 → SEA 2026-12-23 14:25:00; 1 stop(s) via ORD; 522 minutes. Local airport times.
    • AA2476: DCA 2026-12-23 08:43:00 → ORD 2026-12-23 10:15:00; layover at ORD: 75 minutes.
    • AA2398: ORD 2026-12-23 11:30:00 → SEA 2026-12-23 14:25:00.

2026-12-21 → 2026-12-23 · $624.38

  • Air Canada AC540 / AC8784: SEA 2026-12-21 07:45:00 → DCA 2026-12-21 18:18:00; 1 stop(s) via YYZ; 453 minutes. Local airport times.
    • AC540: SEA 2026-12-21 07:45:00 → YYZ 2026-12-21 15:25:00; layover at YYZ: 75 minutes.
    • AC8784: YYZ 2026-12-21 16:40:00 → DCA 2026-12-21 18:18:00.
  • Alaska Airlines AS1: DCA 2026-12-23 08:00:00 → SEA 2026-12-23 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $580.50

  • Alaska Airlines AS2: SEA 2026-12-21 14:02:00 → DCA 2026-12-21 21:59:00; nonstop; 297 minutes. Local airport times.
  • Alaska Airlines AS1: DCA 2026-12-23 08:00:00 → SEA 2026-12-23 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $550.13

  • Alaska Airlines AS264 / AA4626: SEA 2026-12-21 22:59:00 → DCA 2026-12-22 09:20:00; 1 stop(s) via IND; 441 minutes. Local airport times.
    • AS264: SEA 2026-12-21 22:59:00 → IND 2026-12-22 06:03:00; layover at IND: 83 minutes.
    • AA4626: IND 2026-12-22 07:26:00 → DCA 2026-12-22 09:20:00.
  • Alaska Airlines AS1: DCA 2026-12-23 08:00:00 → SEA 2026-12-23 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $567.00

  • Delta Air Lines DL942 / DL2961: SEA 2026-12-21 13:50:00 → DCA 2026-12-21 23:57:00; 1 stop(s) via MSP; 427 minutes. Local airport times.
    • DL942: SEA 2026-12-21 13:50:00 → MSP 2026-12-21 19:11:00; layover at MSP: 74 minutes.
    • DL2961: MSP 2026-12-21 20:25:00 → DCA 2026-12-21 23:57:00.
  • Delta Air Lines DL786: DCA 2026-12-23 16:25:00 → SEA 2026-12-23 19:27:00; nonstop; 362 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $567.00

  • Delta Air Lines DL786: SEA 2026-12-21 07:20:00 → DCA 2026-12-21 15:06:00; nonstop; 286 minutes. Local airport times.
  • Delta Air Lines DL1558 / DL728: DCA 2026-12-23 09:45:00 → SEA 2026-12-23 14:55:00; 1 stop(s) via DTW; 490 minutes. Local airport times.
    • DL1558: DCA 2026-12-23 09:45:00 → DTW 2026-12-23 11:22:00; layover at DTW: 91 minutes.
    • DL728: DTW 2026-12-23 12:53:00 → SEA 2026-12-23 14:55:00.

2026-12-21 → 2026-12-23 · $567.00

  • Delta Air Lines DL812 / DL1454: SEA 2026-12-21 06:00:00 → DCA 2026-12-21 16:38:00; 1 stop(s) via DTW; 458 minutes. Local airport times.
    • DL812: SEA 2026-12-21 06:00:00 → DTW 2026-12-21 13:12:00; layover at DTW: 114 minutes.
    • DL1454: DTW 2026-12-21 15:06:00 → DCA 2026-12-21 16:38:00.
  • Delta Air Lines DL786: DCA 2026-12-23 16:25:00 → SEA 2026-12-23 19:27:00; nonstop; 362 minutes. Local airport times.

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For AI assistants

  • This page: Seattle (SEA) to Washington (DCA) · Dec 21, 2026 · return Dec 23, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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