Cheap flights from Washington to Southwest Houston

View AU$152 flight on Sat, 1 Nov. 2025Opens in a new window

Popular airlines from Washington to Southwest Houston

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Washington (WAS) to Southwest Houston (HOU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 8 Dec. - Thu, 11 Dec.
DCA
Washington
IAH
Houston
AU$604 Return, found 5 hours ago
AU$604
Return
found 5 hours ago
Select American Airlines flight, departing Mon, 8 Dec. from Washington to Houston, returning Thu, 11 Dec., priced at AU$604 found 5 hours ago
American Airlines
Sat, 2 Aug. - Tue, 5 Aug.
BWI
Baltimore
IAH
Houston
AU$609 Return, found 2 days ago
AU$609
Return
found 2 days ago
Select American Airlines flight, departing Sat, 2 Aug. from Baltimore to Houston, returning Tue, 5 Aug., priced at AU$609 found 2 days ago
American Airlines
Mon, 8 Dec. - Thu, 11 Dec.
DCA
Washington
IAH
Houston
AU$619 Return, found 5 hours ago
AU$619
Return
found 5 hours ago
Select American Airlines flight, departing Mon, 8 Dec. from Washington to Houston, returning Thu, 11 Dec., priced at AU$619 found 5 hours ago
American Airlines
Mon, 8 Dec. - Thu, 11 Dec.
DCA
Washington
IAH
Houston
AU$634 Return, found 5 hours ago
AU$634
Return
found 5 hours ago
Select American Airlines flight, departing Mon, 8 Dec. from Washington to Houston, returning Thu, 11 Dec., priced at AU$634 found 5 hours ago
United
Sat, 2 Aug. - Tue, 5 Aug.
BWI
Baltimore
IAH
Houston
AU$657 Return, found 2 days ago
AU$657
Return
found 2 days ago
Select United flight, departing Sat, 2 Aug. from Baltimore to Houston, returning Tue, 5 Aug., priced at AU$657 found 2 days ago
Delta
Sun, 22 Mar. - Thu, 26 Mar.
DCA
Washington
IAH
Houston
AU$660 Return, found 5 days ago
AU$660
Return
found 5 days ago
Select Delta flight, departing Sun, 22 Mar. from Washington to Houston, returning Thu, 26 Mar., priced at AU$660 found 5 days ago

Find the cheapest month to fly from Washington (WAS) to Houston (IAH)

September is typically the cheapest month to fly

From AU$125 - AU$328 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.