$89 Cheap United flights Baltimore (BWI) to Houston (IAH)

View $89 flight on Thu, Aug 28, 2025Opens in a new window

$89 Cheap United flights Baltimore (BWI) to Houston (IAH)

Prices were available within the past 7 days and start at $89 for one-way flights and $125 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Aug 27 - Wed, Sep 3
BWI
Baltimore
IAH
Houston
$125 Roundtrip, found 14 hours ago
$125
Roundtrip
found 14 hours ago
Select United flight, departing Wed, Aug 27 from Baltimore to Houston, returning Wed, Sep 3, priced at $125 found 14 hours ago
United
Mon, Sep 15 - Sun, Sep 21
BWI
Baltimore
IAH
Houston
$144 Roundtrip, just found
$144
Roundtrip
just found
Select United flight, departing Mon, Sep 15 from Baltimore to Houston, returning Sun, Sep 21, priced at $144 just found
United
Sat, Aug 23 - Sat, Aug 30
BWI
Baltimore
IAH
Houston
$149 Roundtrip, found 12 hours ago
$149
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Aug 23 from Baltimore to Houston, returning Sat, Aug 30, priced at $149 found 12 hours ago
United
Mon, Aug 25 - Sun, Aug 31
BWI
Baltimore
IAH
Houston
$159 Roundtrip, just found
$159
Roundtrip
just found
Select United flight, departing Mon, Aug 25 from Baltimore to Houston, returning Sun, Aug 31, priced at $159 just found
Flights from Baltimore (BWI) to Houston (IAH)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, United
Popular airline
Spirit Airlines
Distance
1233 mi
Average flight time
2 hours 26 mins

Frequently asked questions

How much is a United Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
You'll discover affordable round-trip United Airlines flights from $125 from BWI to IAH by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options from $89 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BWI to IAH with United Airlines?
November is one of the most affordable months to fly to Houston with United Airlines. You could also find excellent prices on one-way and return tickets in February.
What is the cheapest time to book flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH) with United Airlines?
Begin your search one to three months ahead of your travel date to find cheaper fares on United Airlines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
Jet off on one of United Airlines's 13 weekly direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH). To view available options, enter your dates, origin and destination and hit search. Then use the "Nonstop" and "Airline" filters.
How long does it take to fly from BWI to IAH with United Airlines?
Take off from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) for George Bush Intercontinental Airport (IAH) on a direct United Airlines flight, and you'll be in the skies for approximately 3h 44m.
Which day of the week has the most United Airlines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
If flexibility is what you're after, Thursday offers the most choice for United Airlines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH). You can select from 2 different departures.
What is the earliest United Airlines flight from BWI to IAH?
Taking off from BWI at 6:00AM UTC-5, the earliest United Airlines flight to IAH arrives at 8:43AM UTC-6. Flying early means you'll be less likely to encounter delays or cancellations.* Prefer to travel later? The last United Airlines flight from BWI to IAH departs at 3:55PM UTC-5 and touches down at 6:41PM UTC-6.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Houston?
George Bush Intercontinental Airport (IAH) is the main arrival point for United Airlines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Houston. But this airline also travels to William P. Hobby Airport (HOU). Be sure to select Expedia's "All Airports" option for your destination to see exactly what's available for your getaway to Houston.
Why fly with United Airlines from BWI to IAH?
Journey from BWI to IAH with United Airlines and enjoy a host of benefits starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
For the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH) route, United Airlines typically uses Airbus A319 and Boeing 737 MAX 8 planes. Keep in mind that last-minute changes are possible for operational reasons, so your flight could be on a different aircraft.
Can I change or cancel my United Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
Changes are usually free within 24 hours of making your booking, but your airline may charge a fee after that. For more information about modifying your reservation, head to your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to update your itinerary without extra charges, apply the "No cancel fee" or "Changes included" filter when organizing your next adventure.

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*Available to One Key members.