Cheap flights from Baltimore to Southwest Houston from CA $48

View CA $48 flight on Thu, Aug. 21, 2025Opens in a new window

Popular airlines from Baltimore to Southwest Houston

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Spirit Airlines

    Spirit Airlines

  • United

    United

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Baltimore (WAS) to Southwest Houston (HOU)

Prices were available within the past 7 days and start at CA $48 for one-way flights and CA $96 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Aug. 21 - Mon, Aug. 25
BWI
Baltimore
IAH
Houston
CA $96 Roundtrip, found 10 hours ago
CA $96
Roundtrip
found 10 hours ago
Select Spirit Airlines flight, departing Thu, Aug. 21 from Baltimore to Houston, returning Mon, Aug. 25, priced at CA $96 found 10 hours ago
Spirit Airlines
Sat, Aug. 30 - Wed, Sep. 3
BWI
Baltimore
IAH
Houston
CA $96 Roundtrip, found 1 day ago
CA $96
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, Aug. 30 from Baltimore to Houston, returning Wed, Sep. 3, priced at CA $96 found 1 day ago
American Airlines
Thu, Aug. 21 - Mon, Aug. 25
BWI
Baltimore
IAH
Houston
CA $269 Roundtrip, found 10 hours ago
CA $269
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Aug. 21 from Baltimore to Houston, returning Mon, Aug. 25, priced at CA $269 found 10 hours ago
Delta
Thu, Aug. 21 - Tue, Aug. 26
BWI
Baltimore
HOU
Houston
CA $324 Roundtrip, found 1 day ago
CA $324
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Aug. 21 from Baltimore to Houston, returning Tue, Aug. 26, priced at CA $324 found 1 day ago
United
Thu, Dec. 4 - Mon, Dec. 8
DCA
Washington
IAH
Houston
CA $396 Roundtrip, found 9 hours ago
CA $396
Roundtrip
found 9 hours ago
Select United flight, departing Thu, Dec. 4 from Washington to Houston, returning Mon, Dec. 8, priced at CA $396 found 9 hours ago
JetBlue Airways
Thu, Dec. 4 - Mon, Dec. 8
DCA
Washington
IAH
Houston
CA $554 Roundtrip, found 9 hours ago
CA $554
Roundtrip
found 9 hours ago
Select JetBlue Airways flight, departing Thu, Dec. 4 from Washington to Houston, returning Mon, Dec. 8, priced at CA $554 found 9 hours ago

Find the cheapest month to fly from Baltimore (BWI) to Houston (IAH)

September is typically the cheapest month to fly

From CA $110 - CA $156 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.