What are the cheapest airlines flying from Houston to Washington, D.C. round-trip?

Our cheapest airline available from Houston to Washington, D.C. is Spirit Airlines. Our recent data shows that you can find tickets from as low as $140 on this airline. Additional options worth looking into are Southwest and American Airlines, starting at $177 and $202 round-trip. You may be able to fly from Houston to Washington, D.C. for 49% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Houston to Washington, D.C. one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $76. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from Houston to Washington, D.C. for a low price.

How far ahead should I book a flight from Houston to Washington, D.C.?

Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Houston to Washington, D.C. (average of $241). Flying from Houston to Washington, D.C. in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Houston to Washington, D.C.?

Travelers seeking maximum savings on their Houston to Washington, D.C. flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Houston to Washington, D.C.?

Most travelers choose Houston Hobby - Baltimore/Washington, Houston Hobby - Washington, D.C. Reagan-National or Houston Hobby - Washington, D.C. Dulles Intl when deciding on the best route from Houston to Washington, D.C..

What are the cheapest flights from Houston to Washington, D.C.?

Looking for the cheapest flight from Houston to Washington, D.C.? While on average our users pay $303, our data indicates the cheapest price to be $120. The most popular route (Houston Hobby - Baltimore/Washington), is priced around $96.

What are the most popular airlines that fly from Houston to Washington, D.C.?

Before booking your flight from Houston to Washington, D.C. check out the most popular airlines for this route: Delta, Frontier or Spirit Airlines.

What is the cheapest day to fly round-trip from Houston to Washington, D.C.?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 27% on the overall cost on flights from Houston to Washington, D.C..

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

Travelers have found it’s best to book a flight 55 days in advance to save up to 131% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 55 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Houston to Washington, D.C. 1-2 weeks in advance for as low as $231, or $365 for flights within the next 24 hours.

What is the cheapest month to fly from Houston to Washington, D.C.?

Our data shows that October tends to be the cheapest month to fly to Washington, D.C. from Houston. Users have commonly found prices around $277 for the month, but tickets can be as low as $92. Due to multiple factors, prepare for potentially higher prices in March.

What is the cheapest time of day to fly from HOU to WAS?

It’s optimal to fly from Houston to Washington, D.C. in the afternoon. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight at noon.

Can I find deals for flights from Houston to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Houston to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Houston to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Washington, D.C..

Can I find deals for business class flights from Houston to Washington, D.C.?

Yes. Cheapflights offers flight deals from Houston to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$76+ Flights from Houston to Washington, D.C.

Round-trip from	$140 (Cheapflightsfares)
One-way from	$76 (FlightHub)
Popular in	March
Cheapest in	October
Average price	$269

IAH

Check the IAH Depart tab online for current security wait times to ensure a smooth departure.

HOU

HOU's single terminal means you can arrive closer to your flight’s departure time, minimizing wait times.

DCA

DCA's Metro stop on the Yellow and Blue lines offers a clean, affordable way to reach D.C. destinations.

IAD

The Silver line Metro connects IAD to D.C. in under 40 minutes, offering a cost-effective travel option.

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$49	Average$199	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$62	Average$246	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$144	Average$328	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$148	Average$388	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$198	Average$454	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$221	Average$360	FlexibilityNo cancel fee	On-time63%

$76+ Cheap flights from Houston to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Houston to Washington, D.C. with Cheapflights

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Cheapflights Tip: The best prices from Houston to Washington, D.C. are usually found in October or August, booked 66 days in advance, depart on a Tuesday or Thursday and return on a Friday

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Find flight deals from Houston to Washington, D.C.

Cheapest flights from Houston to Washington, D.C.Explore the most affordable flight options available from Houston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

Explore the most affordable flight options available from Houston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

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The best insider tips for Houston to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your Houston to Washington, D.C. trip

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IAH

HOU

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IAD

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Best time to book a flight from Houston to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Houston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Houston to Washington, D.C.

How far ahead should I book a flight from Houston to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Houston to Washington, D.C.. Price data was last updated on June 9, 2025.

What is the cheapest month to book a flight from Houston to Washington, D.C.?

What is the cheapest time of day to fly from HOU to WAS?

Find hourly flight availability from Houston to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

What is the cheapest day to fly from Houston to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Houston to Washington, D.C.. Price data was last updated on December 16, 2024.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Houston to Washington, D.C. have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Houston to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Houston to Washington, D.C. round-trip?

What are the cheapest airlines to fly from Houston to Washington, D.C. one-way?

What are the most popular routes from Houston to Washington, D.C.?

What are the cheapest flights from Houston to Washington, D.C.?

Can I find deals for flights from Houston to Washington, D.C. that include hotel bookings?

How can I find direct flights from Houston to Washington, D.C.?

Can I find deals for business class flights from Houston to Washington, D.C.?

What is the cheapest month to book a flight from Houston to Washington, D.C.?

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Top 6 airlines flying from Houston to Washington, D.C.

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Cheapest flights from Houston to Washington, D.C.
Explore the most affordable flight options available from Houston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.