What is the cheapest month to fly from Houston to Washington?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Houston (IAH) to Washington (DCA), with fares starting from $157.

What is the lowest current fare from IAH to DCA?

The lowest currently-listed fare from Houston (IAH) to Washington (DCA) is $157 on 2026-09-07.

How long is the flight from Houston to Washington?

Direct flights from IAH to DCA cover approximately 1,941 km (1,206 miles), with an estimated flight time of 2h 17m. Operating airlines: AA, UA.

Cheap flights from Houston to Washington

Cheapest current fares: $157 in September 2026, 1,941 km direct flight in ~2h 17m.

Last updated August 5, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Houston (IAH) to Washington (DCA). Refreshed daily.

Houston (IAH) → Washington (DCA)

September 2026 $157
August 2026 $187

Frequently asked questions

What is the cheapest month to fly from Houston to Washington?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Houston (IAH) to Washington (DCA), with fares starting from $157.
What is the lowest current fare from IAH to DCA?

The lowest currently-listed fare from Houston (IAH) to Washington (DCA) is $157 on 2026-09-07.
How long is the flight from Houston to Washington?

Direct flights from IAH to DCA cover approximately 1,941 km (1,206 miles), with an estimated flight time of 2h 17m. Operating airlines: AA, UA.

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