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

  • Delta

    Delta

  • American Airlines

    American Airlines

  • 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, 1 Sep. - Mon, 8 Sep.
BWI
Baltimore
IAH
Houston
AU$363 Return, found 5 days ago
AU$363
Return
found 5 days ago
Select American Airlines flight, departing Mon, 1 Sep. from Baltimore to Houston, returning Mon, 8 Sep., priced at AU$363 found 5 days ago
United
Mon, 1 Sep. - Mon, 8 Sep.
BWI
Baltimore
IAH
Houston
AU$380 Return, found 5 days ago
AU$380
Return
found 5 days ago
Select United flight, departing Mon, 1 Sep. from Baltimore to Houston, returning Mon, 8 Sep., priced at AU$380 found 5 days ago
American Airlines
Sun, 31 Aug. - Sun, 7 Sep.
BWI
Baltimore
HOU
Houston
AU$393 Return, found 6 days ago
AU$393
Return
found 6 days ago
Select American Airlines flight, departing Sun, 31 Aug. from Baltimore to Houston, returning Sun, 7 Sep., priced at AU$393 found 6 days ago
American Airlines
Sun, 31 Aug. - Sun, 7 Sep.
BWI
Baltimore
IAH
Houston
AU$393 Return, found 6 days ago
AU$393
Return
found 6 days ago
Select American Airlines flight, departing Sun, 31 Aug. from Baltimore to Houston, returning Sun, 7 Sep., priced at AU$393 found 6 days ago
Delta
Sun, 31 Aug. - Sun, 7 Sep.
BWI
Baltimore
IAH
Houston
AU$410 Return, found 6 days ago
AU$410
Return
found 6 days ago
Select Delta flight, departing Sun, 31 Aug. from Baltimore to Houston, returning Sun, 7 Sep., priced at AU$410 found 6 days ago
Alaska Airlines
Sun, 31 Aug. - Sun, 7 Sep.
BWI
Baltimore
IAH
Houston
AU$938 Return, found 6 days ago
AU$938
Return
found 6 days ago
Select Alaska Airlines flight, departing Sun, 31 Aug. from Baltimore to Houston, returning Sun, 7 Sep., priced at AU$938 found 6 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.