DAL (Dallas) to Washington in September 2026

Dated one-way fares from DAL (Dallas) to Washington in September 2026. Use the calendar to see which days are cheaper.

Lowest this month $111

Highest this month $274

Sample fare $111

Airports DAL–DCA

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September 2026 price calendar

From $111 · up to $274

Mon

Tue

Wed

Thu

Fri

Sat

Sun

2 $274 3 $272 4 $272 5 $272 6 $272 7 $272 8 $270 9 $190 10 $190 11 $190 12 $190 13 $190 14 $190 15 $190 16 $190 17 $190 18 $190 19 $190 20 $190 21 $190 22 $111

Washington WAS

$111

Sep 22, 7:20pm · 2h 50m · 0 stops

DAL → DCA · Southwest Airlines

This page is only September 2026 on the DAL (Dallas) to Washington route. Open the full route if you want the next months side by side.

Prices move as seats sell. Confirm the live itinerary before you book DAL (Dallas) to Washington in September 2026.