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Seattle → Washington

Dec 20, 2026 · return Dec 26, 2026

SEA → DCA1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Sun, Dec 20 – Sat, Dec 26

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

Sun, Dec 20 – Sat, Dec 26

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

Sun, Dec 20 – Sat, Dec 26

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

Sun, Dec 20 – Sat, Dec 26

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

Sun, Dec 20 – Sat, Dec 26

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

Sun, Dec 20 – Sat, Dec 26

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

Sun, Dec 20 – Sat, Dec 26

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

Sun, Dec 20 – Sat, Dec 26

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

Sun, Dec 20 – Sat, Dec 26

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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More dates

All dates for this routeOct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 13, 2026 → Nov 16, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 11, 2026 → Dec 14, 2026Dec 12, 2026 → Dec 19, 2026Dec 22, 2026 → Dec 27, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Dec 30, 2026 → Jan 2, 2027Jan 8, 2027 → Jan 11, 2027Jan 9, 2027 → Jan 16, 2027Jan 15, 2027 → Jan 18, 2027Jan 22, 2027 → Jan 25, 2027Jan 23, 2027 → Jan 30, 2027Feb 5, 2027 → Feb 8, 2027Feb 6, 2027 → Feb 13, 2027Feb 12, 2027 → Feb 15, 2027Mar 5, 2027 → Mar 8, 2027Mar 6, 2027 → Mar 13, 2027Mar 25, 2027 → Mar 29, 2027Apr 2, 2027 → Apr 5, 2027Apr 3, 2027 → Apr 10, 2027Apr 30, 2027 → May 3, 2027May 1, 2027 → May 8, 2027May 28, 2027 → May 31, 2027May 29, 2027 → Jun 5, 2027Jun 25, 2027 → Jun 28, 2027Jun 26, 2027 → Jul 3, 2027Jul 2, 2027 → Jul 6, 2027Jul 23, 2027 → Jul 26, 2027Jul 24, 2027 → Jul 31, 2027Aug 20, 2027 → Aug 23, 2027Aug 21, 2027 → Aug 28, 2027Sep 3, 2027 → Sep 6, 2027Sep 17, 2027 → Sep 20, 2027Oct 30, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-20 → 2026-12-26Alaska AirlinesAS2 / AS1$580.502026-10-29T01:14:55Z
2026-12-20 → 2026-12-26Delta Air LinesDL786 / DL786$594.002026-10-29T01:14:55Z
2026-12-20 → 2026-12-26American AirlinesAA294 + AA461 / AA2476 + AA2398$526.502026-10-29T01:14:55Z
2026-12-20 → 2026-12-26Air Canada / Delta Air LinesAC540 + AC8784 / DL786$631.132026-10-29T01:14:55Z
2026-12-20 → 2026-12-26Alaska AirlinesAS4 / AS1$580.502026-10-29T01:14:55Z
2026-12-20 → 2026-12-26Alaska AirlinesAS264 + AA4626 / AS1$550.132026-10-29T01:14:55Z
2026-12-20 → 2026-12-26Delta Air LinesDL786 / DL1558 + DL728$567.002026-10-29T01:14:55Z
2026-12-20 → 2026-12-26Delta Air LinesDL812 + DL1454 / DL786$567.002026-10-29T01:14:55Z
2026-12-20 → 2026-12-26Delta Air LinesDL942 + DL2961 / DL786$567.002026-10-29T01:14:55Z

2026-12-20 → 2026-12-26 · $580.50

  • Alaska Airlines AS2: SEA 2026-12-20 14:02:00 → DCA 2026-12-20 21:59:00; nonstop; 297 minutes. Local airport times.
  • Alaska Airlines AS1: DCA 2026-12-26 08:00:00 → SEA 2026-12-26 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-20 → 2026-12-26 · $594.00

  • Delta Air Lines DL786: SEA 2026-12-20 08:15:00 → DCA 2026-12-20 16:00:00; nonstop; 285 minutes. Local airport times.
  • Delta Air Lines DL786: DCA 2026-12-26 17:10:00 → SEA 2026-12-26 20:31:00; nonstop; 381 minutes. Local airport times.

2026-12-20 → 2026-12-26 · $526.50

  • American Airlines AA294 / AA461: SEA 2026-12-20 23:36:00 → DCA 2026-12-21 10:00:00; 1 stop(s) via ORD; 444 minutes. Local airport times.
    • AA294: SEA 2026-12-20 23:36:00 → ORD 2026-12-21 05:42:00; layover at ORD: 74 minutes.
    • AA461: ORD 2026-12-21 06:56:00 → DCA 2026-12-21 10:00:00.
  • American Airlines AA2476 / AA2398: DCA 2026-12-26 08:43:00 → SEA 2026-12-26 14:25:00; 1 stop(s) via ORD; 522 minutes. Local airport times.
    • AA2476: DCA 2026-12-26 08:43:00 → ORD 2026-12-26 10:15:00; layover at ORD: 75 minutes.
    • AA2398: ORD 2026-12-26 11:30:00 → SEA 2026-12-26 14:25:00.

2026-12-20 → 2026-12-26 · $631.13

  • Air Canada AC540 / AC8784: SEA 2026-12-20 07:45:00 → DCA 2026-12-20 18:18:00; 1 stop(s) via YYZ; 453 minutes. Local airport times.
    • AC540: SEA 2026-12-20 07:45:00 → YYZ 2026-12-20 15:25:00; layover at YYZ: 75 minutes.
    • AC8784: YYZ 2026-12-20 16:40:00 → DCA 2026-12-20 18:18:00.
  • Delta Air Lines DL786: DCA 2026-12-26 17:10:00 → SEA 2026-12-26 20:31:00; nonstop; 381 minutes. Local airport times.

2026-12-20 → 2026-12-26 · $580.50

  • Alaska Airlines AS4: SEA 2026-12-20 08:00:00 → DCA 2026-12-20 16:05:00; nonstop; 305 minutes. Local airport times.
  • Alaska Airlines AS1: DCA 2026-12-26 08:00:00 → SEA 2026-12-26 10:55:00; nonstop; 355 minutes. Local airport times.

2026-12-20 → 2026-12-26 · $550.13

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

2026-12-20 → 2026-12-26 · $567.00

  • Delta Air Lines DL786: SEA 2026-12-20 07:20:00 → DCA 2026-12-20 15:06:00; nonstop; 286 minutes. Local airport times.
  • Delta Air Lines DL1558 / DL728: DCA 2026-12-26 09:45:00 → SEA 2026-12-26 14:55:00; 1 stop(s) via DTW; 490 minutes. Local airport times.
    • DL1558: DCA 2026-12-26 09:45:00 → DTW 2026-12-26 11:22:00; layover at DTW: 91 minutes.
    • DL728: DTW 2026-12-26 12:53:00 → SEA 2026-12-26 14:55:00.

2026-12-20 → 2026-12-26 · $567.00

  • Delta Air Lines DL812 / DL1454: SEA 2026-12-20 06:00:00 → DCA 2026-12-20 16:38:00; 1 stop(s) via DTW; 458 minutes. Local airport times.
    • DL812: SEA 2026-12-20 06:00:00 → DTW 2026-12-20 13:12:00; layover at DTW: 114 minutes.
    • DL1454: DTW 2026-12-20 15:06:00 → DCA 2026-12-20 16:38:00.
  • Delta Air Lines DL786: DCA 2026-12-26 17:10:00 → SEA 2026-12-26 20:31:00; nonstop; 381 minutes. Local airport times.

2026-12-20 → 2026-12-26 · $567.00

  • Delta Air Lines DL942 / DL2961: SEA 2026-12-20 13:50:00 → DCA 2026-12-20 23:57:00; 1 stop(s) via MSP; 427 minutes. Local airport times.
    • DL942: SEA 2026-12-20 13:50:00 → MSP 2026-12-20 19:11:00; layover at MSP: 74 minutes.
    • DL2961: MSP 2026-12-20 20:25:00 → DCA 2026-12-20 23:57:00.
  • Delta Air Lines DL786: DCA 2026-12-26 17:10:00 → SEA 2026-12-26 20:31:00; nonstop; 381 minutes. Local airport times.

More dates for this route