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Route overview: Washington, DC to Seattle (SEA) flight deals

Washington → Seattle

Dec 30, 2026 · return Jan 2, 2027

DCA → SEA1 adulteconomyRound trip

8 flight options · 3 airlines

Nonstop flights

Wed, Dec 30 – Sat, Jan 2

Alaska Airlines
8:00 amDCA
6h 17m
Nonstop
11:17 amSEA
Alaska Airlines
2:02 pmSEA
4h 57m
Nonstop
9:59 pmDCA

Round-trip total · 1 adult · Taxes included

Wed, Dec 30 – Sat, Jan 2

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

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 30 – Sat, Jan 2

American Airlines
2:25 pmDCA
8h 46m
IND · 1h 40m
8:11 pmSEA
American Airlines
11:36 pmSEA
7h 24m
ORD · 1h 14m
10:00 am+1DCA

Round-trip total · 1 adult · Taxes included

Wed, Dec 30 – Sat, Jan 2

Alaska Airlines
5:20 pmDCA
8h 40m
PDX · 1h 43m
11:00 pmSEA
Alaska Airlines
10:59 pmSEA
7h 21m
IND · 1h 23m
9:20 am+1DCA

Round-trip total · 1 adult · Taxes included

Wed, Dec 30 – Sat, Jan 2

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

Round-trip total · 1 adult · Taxes included

Wed, Dec 30 – Sat, Jan 2

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

Round-trip total · 1 adult · Taxes included

Wed, Dec 30 – Sat, Jan 2

Delta Air Lines
9:45 amDCA
8h 10m
DTW · 1h 31m
2:55 pmSEA
Delta Air Lines
8:15 amSEA
4h 45m
Nonstop
4:00 pmDCA

Round-trip total · 1 adult · Taxes included

Wed, Dec 30 – Sat, Jan 2

Delta Air Lines
4:25 pmDCA
6h 20m
Nonstop
7:45 pmSEA
Delta Air Lines
1:50 pmSEA
7h 7m
MSP · 1h 14m
11:57 pmDCA

Round-trip total · 1 adult · Taxes included

Make this trip yours

DCA ⇄ SEA

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 29, 2026 → Jan 1, 2027Dec 31, 2026 → Jan 3, 2027
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.

Route overview: Washington, DC to Seattle (SEA) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-30 → 2027-01-02Alaska AirlinesAS1 / AS2$573.762026-10-29T01:02:54Z
2026-12-30 → 2027-01-02Delta Air LinesDL786 / DL786$600.762026-10-29T01:02:54Z
2026-12-30 → 2027-01-02American AirlinesAA4720 + AS500 / AA294 + AA461$526.502026-10-29T01:02:54Z
2026-12-30 → 2027-01-02Alaska AirlinesAS9 + AS1432 / AS264 + AA4626$513.002026-10-29T01:02:54Z
2026-12-30 → 2027-01-02American AirlinesAA2476 + AA2398 / AA294 + AA461$526.502026-10-29T01:02:54Z
2026-12-30 → 2027-01-02Alaska AirlinesAS1 / AS264 + AA4626$543.382026-10-29T01:02:54Z
2026-12-30 → 2027-01-02Delta Air LinesDL1558 + DL728 / DL786$573.762026-10-29T01:02:54Z
2026-12-30 → 2027-01-02Delta Air LinesDL786 / DL942 + DL2961$573.762026-10-29T01:02:54Z

2026-12-30 → 2027-01-02 · $573.76

  • Alaska Airlines AS1: DCA 2026-12-30 08:00:00 → SEA 2026-12-30 11:17:00; nonstop; 377 minutes. Local airport times.
  • Alaska Airlines AS2: SEA 2027-01-02 14:02:00 → DCA 2027-01-02 21:59:00; nonstop; 297 minutes. Local airport times.

2026-12-30 → 2027-01-02 · $600.76

  • Delta Air Lines DL786: DCA 2026-12-30 16:25:00 → SEA 2026-12-30 19:27:00; nonstop; 362 minutes. Local airport times.
  • Delta Air Lines DL786: SEA 2027-01-02 08:15:00 → DCA 2027-01-02 16:00:00; nonstop; 285 minutes. Local airport times.

2026-12-30 → 2027-01-02 · $526.50

  • American Airlines AA4720 / AS500: DCA 2026-12-30 14:25:00 → SEA 2026-12-30 20:11:00; 1 stop(s) via IND; 526 minutes. Local airport times.
    • AA4720: DCA 2026-12-30 14:25:00 → IND 2026-12-30 16:27:00; layover at IND: 100 minutes.
    • AS500: IND 2026-12-30 18:07:00 → SEA 2026-12-30 20:11:00.
  • American Airlines AA294 / AA461: SEA 2027-01-02 23:36:00 → DCA 2027-01-03 10:00:00; 1 stop(s) via ORD; 444 minutes. Local airport times.
    • AA294: SEA 2027-01-02 23:36:00 → ORD 2027-01-03 05:42:00; layover at ORD: 74 minutes.
    • AA461: ORD 2027-01-03 06:56:00 → DCA 2027-01-03 10:00:00.

2026-12-30 → 2027-01-02 · $513.00

  • Alaska Airlines AS9 / AS1432: DCA 2026-12-30 17:20:00 → SEA 2026-12-30 23:00:00; 1 stop(s) via PDX; 520 minutes. Local airport times.
    • AS9: DCA 2026-12-30 17:20:00 → PDX 2026-12-30 20:16:00; layover at PDX: 103 minutes.
    • AS1432: PDX 2026-12-30 21:59:00 → SEA 2026-12-30 23:00:00.
  • Alaska Airlines AS264 / AA4626: SEA 2027-01-02 22:59:00 → DCA 2027-01-03 09:20:00; 1 stop(s) via IND; 441 minutes. Local airport times.
    • AS264: SEA 2027-01-02 22:59:00 → IND 2027-01-03 06:03:00; layover at IND: 83 minutes.
    • AA4626: IND 2027-01-03 07:26:00 → DCA 2027-01-03 09:20:00.

2026-12-30 → 2027-01-02 · $526.50

  • American Airlines AA2476 / AA2398: DCA 2026-12-30 08:43:00 → SEA 2026-12-30 14:25:00; 1 stop(s) via ORD; 522 minutes. Local airport times.
    • AA2476: DCA 2026-12-30 08:43:00 → ORD 2026-12-30 10:15:00; layover at ORD: 75 minutes.
    • AA2398: ORD 2026-12-30 11:30:00 → SEA 2026-12-30 14:25:00.
  • American Airlines AA294 / AA461: SEA 2027-01-02 23:36:00 → DCA 2027-01-03 10:00:00; 1 stop(s) via ORD; 444 minutes. Local airport times.
    • AA294: SEA 2027-01-02 23:36:00 → ORD 2027-01-03 05:42:00; layover at ORD: 74 minutes.
    • AA461: ORD 2027-01-03 06:56:00 → DCA 2027-01-03 10:00:00.

2026-12-30 → 2027-01-02 · $543.38

  • Alaska Airlines AS1: DCA 2026-12-30 08:00:00 → SEA 2026-12-30 10:55:00; nonstop; 355 minutes. Local airport times.
  • Alaska Airlines AS264 / AA4626: SEA 2027-01-02 22:59:00 → DCA 2027-01-03 09:20:00; 1 stop(s) via IND; 441 minutes. Local airport times.
    • AS264: SEA 2027-01-02 22:59:00 → IND 2027-01-03 06:03:00; layover at IND: 83 minutes.
    • AA4626: IND 2027-01-03 07:26:00 → DCA 2027-01-03 09:20:00.

2026-12-30 → 2027-01-02 · $573.76

  • Delta Air Lines DL1558 / DL728: DCA 2026-12-30 09:45:00 → SEA 2026-12-30 14:55:00; 1 stop(s) via DTW; 490 minutes. Local airport times.
    • DL1558: DCA 2026-12-30 09:45:00 → DTW 2026-12-30 11:22:00; layover at DTW: 91 minutes.
    • DL728: DTW 2026-12-30 12:53:00 → SEA 2026-12-30 14:55:00.
  • Delta Air Lines DL786: SEA 2027-01-02 08:15:00 → DCA 2027-01-02 16:00:00; nonstop; 285 minutes. Local airport times.

2026-12-30 → 2027-01-02 · $573.76

  • Delta Air Lines DL786: DCA 2026-12-30 16:25:00 → SEA 2026-12-30 19:45:00; nonstop; 380 minutes. Local airport times.
  • Delta Air Lines DL942 / DL2961: SEA 2027-01-02 13:50:00 → DCA 2027-01-02 23:57:00; 1 stop(s) via MSP; 427 minutes. Local airport times.
    • DL942: SEA 2027-01-02 13:50:00 → MSP 2027-01-02 19:11:00; layover at MSP: 74 minutes.
    • DL2961: MSP 2027-01-02 20:25:00 → DCA 2027-01-02 23:57:00.

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