WAS - IAH

$78 Find Cheap Flights from Washington, D.C. to Houston George Bush Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to George Bush Intcntl departing on 6/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Houston George Bush Intcntl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Houston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$158
Typical prices: $281-$136
Frontier
Tue 8/25Wed 8/26
BWI - IAH • Non-stop
Cheapest one-way
$78
Typical prices: $134-$251
Frontier
Tue 6/23
BWI - IAH • 1 stop
Top airlines
Cheapest • from $158 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 3h 21m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 28% average savings
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $201 (round-trip)
Shortest trip • 5h 36m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 57% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to George Bush Intcntl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Washington, D.C. to George Bush Intcntl (WAS-IAH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to George Bush Intcntl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to George Bush Intcntl

Tue, Aug 25 - Wed, Aug 26
Frontier Logo
4:29 pm - 6:57 pm
BWI
-
IAH
3h 28mnonstop
Frontier Logo
4:21 pm - 8:37 pm
IAH
-
BWI
3h 16mnonstop
$158Frontier
Tue, Aug 4 - Tue, Aug 11
Frontier Logo
9:37 pm - 7:20 am
BWI
-
IAH
10h 43m
1 stop
Frontier Logo
8:55 am - 6:09 pm
IAH
-
BWI
8h 14m
1 stop
$159Frontier
Tue, Jun 30 - Sat, Jul 4
Frontier Logo
7:16 pm - 7:23 am
BWI
-
IAH
13h 07m
1 stop
Frontier Logo
10:52 am - 6:33 pm
IAH
-
BWI
6h 41m
1 stop
$160Frontier
Tue, Jul 21 - Wed, Aug 12
Frontier Logo
9:37 pm - 7:20 am
BWI
-
IAH
10h 43m
1 stop
Frontier Logo
8:02 pm - 7:26 am
IAH
-
BWI
10h 24m
1 stop
$164Frontier
Wed, Jun 24 - Tue, Jun 30
Frontier Logo
1:29 pm - 10:48 pm
BWI
-
IAH
10h 19m
1 stop
Frontier Logo
6:30 am - 6:08 pm
IAH
-
BWI
10h 38m
1 stop
$169Frontier
Tue, Jun 23 - Tue, Jul 7
Frontier Logo
7:16 pm - 10:07 am
BWI
-
IAH
15h 51m
1 stop
Frontier Logo
10:53 am - 6:09 pm
IAH
-
BWI
6h 16m
1 stop
$171Frontier
Fri, Oct 23 - Tue, Oct 27
United Airlines Logo
10:59 am - 1:19 pm
DCA
-
IAH
3h 20mnonstop
United Airlines Logo
7:40 am - 4:23 pm
IAH
-
DCA
7h 43m
1 stop
$240United Airlines
Wed, Aug 5 - Wed, Aug 19
American Airlines Logo
1:48 pm - 4:19 pm
DCA
-
IAH
3h 31mnonstop
American Airlines Logo
4:50 pm - 8:59 pm
IAH
-
DCA
3h 09mnonstop
$247American Airlines
Tue, Jul 28 - Wed, Aug 5
JetBlue Logo
6:21 am - 11:03 am
DCA
-
IAH
5h 42m
1 stop
JetBlue Logo
11:53 am - 10:59 pm
IAH
-
DCA
10h 06m
1 stop
$250JetBlue
Tue, Aug 4 - Thu, Aug 6
JetBlue Logo
6:21 am - 11:01 am
DCA
-
IAH
5h 40m
1 stop
JetBlue Logo
11:50 am - 10:59 pm
IAH
-
DCA
10h 09m
1 stop
$254JetBlue
Booking Insights

KAYAK's insights & trends for Washington, D.C. to George Bush Intcntl flights

Get data-powered insights and trends into flights from Washington, D.C. to George Bush Intcntl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. to Houston George Bush Intcntl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to Houston George Bush Intcntl Airport departing in August.

What is the cheapest Washington, D.C. to Houston George Bush Intcntl Airport flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. to Houston George Bush Intcntl Airport costs $230 on the route between Baltimore (BWI) and Houston George Bush Intcntl Airport (IAH). Over the past month, this route was, on average, 28% cheaper than other Washington, D.C.-Houston George Bush Intcntl Airport routes. It is also the most popular route.

What’s the cheapest day of the week to fly from Washington, D.C. to Houston George Bush Airport?

The average price of all round-trip flights from Washington, D.C. to Houston George Bush Intcntl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington, D.C. to Houston George Bush Airport, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Houston George Bush Airport, Friday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Washington, D.C. to Houston George Bush Intcntl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to Houston George Bush Intcntl Airport is September, where tickets cost $33 (return) on average. On the other hand, the most expensive months are February and April, where the average cost of round-trip tickets is $129 and $109 respectively.

Can I save money by flying with a layover from Washington, D.C. to Houston George Bush Intcntl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $400 on average.

How far in advance should I book a flight from Washington, D.C. to Houston George Bush Intcntl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. to Houston George Bush Intcntl Airport, you should book around 3 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Washington, D.C. to George Bush Intcntl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Ramsey Qubein

Ramsey Qubein

Expert on DCA

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonJanuary
Cheapest flight$78
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Baltimore to Houston George Bush Airport

When to book flights from Washington, D.C. to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from Washington, D.C. to George Bush Intcntl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington, D.C. to Houston George Bush Airport flights

  • What is the cheapest flight from Washington, D.C. to Houston George Bush Intcntl Airport?

    In the last 5 days, the lowest price for a flight from Washington, D.C. to Houston George Bush Intcntl Airport was $78 for a one-way ticket and $158 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Houston George Bush Airport?

    A passport is not required to fly from Washington, D.C. to Houston George Bush Airport.

  • Which airports will I be using when flying from Washington, D.C. to Houston George Bush Airport?

    On your way to Houston George Bush Airport, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at Houston George Bush Intcntl.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to Houston George Bush Airport?

    Only American Airlines offers inflight Wi-Fi service on the Washington, D.C. to Houston George Bush Airport flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to Houston George Bush Airport?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Washington, D.C. to Houston George Bush Airport flight route.

  • Which airline alliances offer flights from Washington, D.C. to Houston George Bush Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Houston George Bush Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Washington, D.C. to Houston George Bush Airport?

    There are nonstop flights from Washington, D.C. to Houston George Bush Airport on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Houston, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Houston are United Airlines and American Airlines. With an average price for the route of $424 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $385 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Houston George Bush Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Houston George Bush Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Houston George Bush Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Houston George Bush Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston George Bush Airport with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Houston George Bush Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston George Bush Airport from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. to Houston George Bush Intcntl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $209 or less one-way and $407 or less round-trip.

Prefer to fly direct from Washington, D.C. to Houston George Bush Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. to Houston George Bush Intcntl.
Find which airlines fly direct from Washington, D.C. to Houston George Bush Intcntl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. to Houston George Bush Intcntl

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

Houston George Bush Intcntl to Washington, D.C.

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Washington, D.C. to George Bush Intcntl

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to George Bush Intcntl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9794 reviews
8.1Crew
6.6Food
7.1Entertainment
7.7Boarding
7.3Comfort
Airline reviews

The flight was delayed, they didn’t even have water for the toilets or for drinks

2.0 MediocreKarla, Jun 2026
BOS - IAH
Read more United Airlines reviews

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

The flight had a delay but I made it to my connection. Flight was smooth overall

No screens or meal options. Freezing cold. Dirty seats. Left late.

Overall flight was ok. Flight attendant was receptive to assisting passengers with tight connections.

This was the first flight in the morning. We boarded fine. The cabin door was closed and we were ready to go. We were notified by the Captain that ATC issued and ground stop for 40 minutes. So, without even pushing back from the gate, we were already 40 minutes late. We actually were released to push-back and taxi at 30 minutes. But, some passengers had tight connections and were not going to make their connections. Some passengers asked about the delay and the effect on the connections and were told by the cabin attendant that all flights will be delayed and so they should be OK. However, that was not true. My connecting flight was on time and I arrived at IAH with 21 minutes to make my connection. I did and I'm happy about that, but the flight crew should not have given assurances to the passengers who might have missed their connections.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Overall a good experience, however Wifi was not working on the flight.

The plane was very creaky and lots of ringing. Plane was dirty and dingy. I couldn't hear the captain's announcements from the flight deck. Not sure if it was the captain or the audio equipment, but good thing there wasn't an emergency where we needed clear instructions. The overhead compartments were clearly full, but the flight crew allowed people to stand in the back with their carry on luggage. Then after everyone boarded, they had to go to the front to gate check their luggage because there was no room for their bags and then they returned to their seats...such a waste of time when clearly the overhead compartments were full when they originally boarded.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

Everything you need to know for your flight from Washington, D.C. to George Bush Intcntl

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