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Seattle → Washington

Aug 21, 2027 · return Aug 28, 2027

SEA → DCA1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Sat, Aug 21 – Sat, Aug 28

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

Sat, Aug 21 – Sat, Aug 28

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

Sat, Aug 21 – Sat, Aug 28

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

Sat, Aug 21 – Sat, Aug 28

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

Sat, Aug 21 – Sat, Aug 28

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

Sat, Aug 21 – Sat, Aug 28

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

Sat, Aug 21 – Sat, Aug 28

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

Sat, Aug 21 – Sat, Aug 28

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

Sat, Aug 21 – Sat, Aug 28

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

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 routeNov 5, 2026 → Nov 8, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Dec 5, 2026 → Dec 12, 2026Dec 17, 2026 → Dec 20, 2026Dec 26, 2026 → Jan 2, 2027Jan 5, 2027 · One wayJan 16, 2027 → Jan 23, 2027Feb 5, 2027 → Feb 8, 2027Apr 3, 2027 → Apr 10, 2027Jun 26, 2027 → Jul 3, 2027Sep 17, 2027 → Sep 20, 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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-08-21 → 2027-08-28Alaska AirlinesAS2 / AS1$525.002026-10-29T01:14:55Z
2027-08-21 → 2027-08-28Delta Air LinesDL786 / DL786$535.002026-10-29T01:14:55Z
2027-08-21 → 2027-08-28American AirlinesAA294 + AA461 / AA2476 + AA2398$475.002026-10-29T01:14:55Z
2027-08-21 → 2027-08-28Air Canada / Delta Air LinesAC540 + AC8784 / DL786$557.502026-10-29T01:14:55Z
2027-08-21 → 2027-08-28Alaska AirlinesAS4 / AS1$525.002026-10-29T01:14:55Z
2027-08-21 → 2027-08-28Alaska AirlinesAS264 + AA4626 / AS1$497.502026-10-29T01:14:55Z
2027-08-21 → 2027-08-28Delta Air LinesDL786 / DL1558 + DL728$510.002026-10-29T01:14:55Z
2027-08-21 → 2027-08-28Delta Air LinesDL942 + DL2961 / DL786$510.002026-10-29T01:14:55Z
2027-08-21 → 2027-08-28Delta Air LinesDL812 + DL1454 / DL786$510.002026-10-29T01:14:55Z

2027-08-21 → 2027-08-28 · $525.00

  • Alaska Airlines AS2: SEA 2027-08-21 14:02:00 → DCA 2027-08-21 21:59:00; nonstop; 297 minutes. Local airport times.
  • Alaska Airlines AS1: DCA 2027-08-28 08:00:00 → SEA 2027-08-28 10:55:00; nonstop; 355 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $535.00

  • Delta Air Lines DL786: SEA 2027-08-21 08:15:00 → DCA 2027-08-21 16:00:00; nonstop; 285 minutes. Local airport times.
  • Delta Air Lines DL786: DCA 2027-08-28 17:10:00 → SEA 2027-08-28 20:31:00; nonstop; 381 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $475.00

  • American Airlines AA294 / AA461: SEA 2027-08-21 23:36:00 → DCA 2027-08-22 10:00:00; 1 stop(s) via ORD; 444 minutes. Local airport times.
    • AA294: SEA 2027-08-21 23:36:00 → ORD 2027-08-22 05:42:00; layover at ORD: 74 minutes.
    • AA461: ORD 2027-08-22 06:56:00 → DCA 2027-08-22 10:00:00.
  • American Airlines AA2476 / AA2398: DCA 2027-08-28 08:43:00 → SEA 2027-08-28 14:25:00; 1 stop(s) via ORD; 522 minutes. Local airport times.
    • AA2476: DCA 2027-08-28 08:43:00 → ORD 2027-08-28 10:15:00; layover at ORD: 75 minutes.
    • AA2398: ORD 2027-08-28 11:30:00 → SEA 2027-08-28 14:25:00.

2027-08-21 → 2027-08-28 · $557.50

  • Air Canada AC540 / AC8784: SEA 2027-08-21 07:45:00 → DCA 2027-08-21 18:18:00; 1 stop(s) via YYZ; 453 minutes. Local airport times.
    • AC540: SEA 2027-08-21 07:45:00 → YYZ 2027-08-21 15:25:00; layover at YYZ: 75 minutes.
    • AC8784: YYZ 2027-08-21 16:40:00 → DCA 2027-08-21 18:18:00.
  • Delta Air Lines DL786: DCA 2027-08-28 17:10:00 → SEA 2027-08-28 20:31:00; nonstop; 381 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $525.00

  • Alaska Airlines AS4: SEA 2027-08-21 08:00:00 → DCA 2027-08-21 16:05:00; nonstop; 305 minutes. Local airport times.
  • Alaska Airlines AS1: DCA 2027-08-28 08:00:00 → SEA 2027-08-28 10:55:00; nonstop; 355 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $497.50

  • Alaska Airlines AS264 / AA4626: SEA 2027-08-21 22:59:00 → DCA 2027-08-22 09:20:00; 1 stop(s) via IND; 441 minutes. Local airport times.
    • AS264: SEA 2027-08-21 22:59:00 → IND 2027-08-22 06:03:00; layover at IND: 83 minutes.
    • AA4626: IND 2027-08-22 07:26:00 → DCA 2027-08-22 09:20:00.
  • Alaska Airlines AS1: DCA 2027-08-28 08:00:00 → SEA 2027-08-28 10:55:00; nonstop; 355 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $510.00

  • Delta Air Lines DL786: SEA 2027-08-21 07:20:00 → DCA 2027-08-21 15:06:00; nonstop; 286 minutes. Local airport times.
  • Delta Air Lines DL1558 / DL728: DCA 2027-08-28 09:45:00 → SEA 2027-08-28 14:55:00; 1 stop(s) via DTW; 490 minutes. Local airport times.
    • DL1558: DCA 2027-08-28 09:45:00 → DTW 2027-08-28 11:22:00; layover at DTW: 91 minutes.
    • DL728: DTW 2027-08-28 12:53:00 → SEA 2027-08-28 14:55:00.

2027-08-21 → 2027-08-28 · $510.00

  • Delta Air Lines DL942 / DL2961: SEA 2027-08-21 13:50:00 → DCA 2027-08-21 23:57:00; 1 stop(s) via MSP; 427 minutes. Local airport times.
    • DL942: SEA 2027-08-21 13:50:00 → MSP 2027-08-21 19:11:00; layover at MSP: 74 minutes.
    • DL2961: MSP 2027-08-21 20:25:00 → DCA 2027-08-21 23:57:00.
  • Delta Air Lines DL786: DCA 2027-08-28 17:10:00 → SEA 2027-08-28 20:31:00; nonstop; 381 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $510.00

  • Delta Air Lines DL812 / DL1454: SEA 2027-08-21 06:00:00 → DCA 2027-08-21 16:38:00; 1 stop(s) via DTW; 458 minutes. Local airport times.
    • DL812: SEA 2027-08-21 06:00:00 → DTW 2027-08-21 13:12:00; layover at DTW: 114 minutes.
    • DL1454: DTW 2027-08-21 15:06:00 → DCA 2027-08-21 16:38:00.
  • Delta Air Lines DL786: DCA 2027-08-28 17:10:00 → SEA 2027-08-28 20:31:00; nonstop; 381 minutes. Local airport times.

More dates for this route