$54 Cheap Flights from Baltimore (BWI) to Houston (IAH)

View $54 flight on Tue, Sep 30, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to George Bush Intercontinental Airport (IAH)

Cheap Flights from Baltimore to Houston (BWI-IAH)

Prices were available within the past 7 days and start at $54 for one-way flights and $108 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, Sep 23 - Tue, Sep 30
BWI
Baltimore
IAH
Houston
$108 Roundtrip, just found
$108
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Sep 23 from Baltimore to Houston, returning Tue, Sep 30, priced at $108 just found
Spirit Airlines
Thu, Sep 25 - Thu, Oct 2
BWI
Baltimore
IAH
Houston
$119 Roundtrip, just found
$119
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Sep 25 from Baltimore to Houston, returning Thu, Oct 2, priced at $119 just found
Spirit Airlines
Fri, Aug 8 - Wed, Aug 13
BWI
Baltimore
IAH
Houston
$129 Roundtrip, found 4 hours ago
$129
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Fri, Aug 8 from Baltimore to Houston, returning Wed, Aug 13, priced at $129 found 4 hours ago
Spirit Airlines
Wed, Aug 13 - Tue, Aug 19
BWI
Baltimore
IAH
Houston
$130 Roundtrip, just found
$130
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Aug 13 from Baltimore to Houston, returning Tue, Aug 19, priced at $130 just found
Spirit Airlines
Sat, Aug 2 - Thu, Aug 7
BWI
Baltimore
IAH
Houston
$132 Roundtrip, just found
$132
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Aug 2 from Baltimore to Houston, returning Thu, Aug 7, priced at $132 just found
Spirit Airlines
Mon, Aug 25 - Wed, Sep 3
BWI
Baltimore
IAH
Houston
$133 Roundtrip, found 19 hours ago
$133
Roundtrip
found 19 hours ago
Select Spirit Airlines flight, departing Mon, Aug 25 from Baltimore to Houston, returning Wed, Sep 3, priced at $133 found 19 hours ago
Spirit Airlines
Sat, Jul 26 - Thu, Jul 31
BWI
Baltimore
IAH
Houston
$133 Roundtrip, found 4 hours ago
$133
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Sat, Jul 26 from Baltimore to Houston, returning Thu, Jul 31, priced at $133 found 4 hours ago
Frontier Airlines
Thu, Aug 21 - Tue, Aug 26
BWI
Baltimore
IAH
Houston
$137 Roundtrip, found 4 hours ago
$137
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Aug 21 from Baltimore to Houston, returning Tue, Aug 26, priced at $137 found 4 hours ago
United
Mon, Sep 22 - Mon, Sep 29
BWI
Baltimore
IAH
Houston
$148 Roundtrip, just found
$148
Roundtrip
just found
Select United flight, departing Mon, Sep 22 from Baltimore to Houston, returning Mon, Sep 29, priced at $148 just found
Alaska Airlines
Sun, Jul 13 - Tue, Jul 22
BWI
Baltimore
IAH
Houston
$788 Roundtrip, found 19 hours ago
$788
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Sun, Jul 13 from Baltimore to Houston, returning Tue, Jul 22, priced at $788 found 19 hours ago

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

August is typically the cheapest month to fly

From $68 - $146 per traveler.

Graph displaying average flight prices per month

Alternative airports near Houston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to George Bush Intercontinental IAH. Cheapest option available. Average driving time to city center is 24 minutes. Flights from $161
IAH
George Bush Intercontinental
Cheapest
Average driving time to city center24 min
Flights from $161
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
Roundtrip price
$108
Distance
1233 mi
Average flight time
2 hours 22 mins

Baltimore to Houston Flights

The cheapest times to fly from Baltimore to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Houston are during the month of September. You can find some of the cheapest flights from Baltimore to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Houston

Sunday is one of the best days to book for cheap flights from Baltimore to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $54 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH) cost?
You can book cheap return fares starting from $98 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving BWI on July 23 2025 and touching down at IAH. The price was last updated on June 29 2025 and has not changed since.
What is the cheapest month to fly from BWI to IAH?
The cheapest flights from BWI to IAH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
You can fly nonstop from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH) on a United Airlines flight.
What is the cheapest airline that flies from BWI to IAH?
Travel from BWI to IAH with Spirit Airlines. This airline currently has the cheapest one-way ticket for this route, starting at $49. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BWI on September 24 2025. Prices were last updated on June 29 2025 and have not changed since.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
Every day, an average of 3 direct flights take off from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH). Choose the departure time that best fits your itinerary.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
Flights between BWI and IAH are busiest at 6 AM. If you're after a quieter trip and potentially cheaper prices, look for a departure that's outside typical rush times.
What day of the week has the most flights from BWI to IAH?
Friday has the most flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH). Consider leaving on this day and you'll have the best chance of finding a departure that fits your itinerary.
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
The first flight of the day leaving from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) is at around 5:55AM UTC-5. Hop on this flight and you'll touch down at George Bush Intercontinental Airport (IAH) at approximately 8:37AM UTC-6. The overall travel time is 3h 42m.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
Flights from BWI to IAH have an average travel time of 3 hours and 43 minutes. The total distance between the two airports is 1,250 mi.
What airline has the least delays from BWI to IAH?
United Airlines has the best performance for on-time direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH), with an on-time rating of 82%. Use the Expedia App to see your flight schedule before you go and get real-time alerts about any changes.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
Book a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Houston from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Take a direct flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Houston and arrive at George Bush Intercontinental Airport (IAH). An alternative entry point into this city is William P. Hobby Airport (HOU).
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH) last-minute?
Holding off until just before your trip to book your flight from BWI to IAH generally means paying more. While you may find some last-minute offers, there's no guarantee. Keep your travel plans flexible to maximize your chances of landing a bargain.
Is it cheaper to book a BWI to IAH flight and hotel package?
Securing a BWI to IAH flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our impressive range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to George Bush Intercontinental Airport (IAH)?
It's usually possible to reschedule or cancel your BWI to IAH flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.