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Cheap flights from Washington Dulles Intl to Houston (IAD - IAH)

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The best prices from Washington Dulles Intl to Houston are usually found in August or October, booked 44 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

How to find the cheapest flight from
Washington Dulles Intl (IAD) to Houston (IAH)

IAD - IAH
Price
$236 - $377
IAH
Temperature
59 - 86 °F

Popular in

May

High demand for flights, 16% potential price rise

Cheapest in

August

Best time to find cheap flights, 25% potential price drop

Round-trip from

$236

From Washington Dulles Intl to Houston

One-way from

$110

One-way flight from Washington Dulles Intl to Houston

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Washington Dulles Intl to Houston?

Saturday flights are found to be more expensive to fly from Washington Dulles Intl to Houston. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Houston.

How far in advance should I book a flight from Washington Dulles Intl to Houston?

Travelers have found it’s best to book a flight 44 days in advance to save up to 26% 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 44 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 Washington Dulles Intl to Houston 1-2 weeks in advance for as low as $118, or $157 for flights within the next 24 hours.

What is the cheapest month to fly from Washington Dulles Intl to Houston?

February is one of the best times of the year to fly to Houston from Washington Dulles Intl. Prices for February average $134 per person but you can even find prices for as low as $68. The most expensive prices can be found in the month of December. Opting for a February flight can save you 46% on your journey compared to booking in February

When is the cheapest time to fly from Washington Dulles Intl to Houston (IAD - IAH)?

It’s typically best to fly out from Washington Dulles Intl to Houston at noon. Doing so could potentially save you 12% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap flights from Washington Dulles Intl to Houston in January, February 2021

The best prices found for IAD to IAH flights for January, February
29 Jan - 31 Jan
$140pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl
22 Jan - 28 Feb
$142pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl
29 Jan - 31 Jan
$143pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl

Washington Dulles Intl to Houston 2021 flight deals

Cheap flights to Houston from Washington Dulles Intl found for this year
29 Jan - 31 Jan
$140pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl
22 Jan - 28 Feb
$142pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl
29 Jan - 31 Jan
$143pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl

Non-stop flights to Houston from Washington Dulles Intl

Save time with Washington Dulles Intl to Houston direct flight deals
11 Feb - 2 Mar
$241pp
IAD
Washington Dulles Intl
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
4 Feb - 7 Feb
$251pp
IAD
Washington Dulles Intl
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
12 Feb - 16 Feb
$261pp
IAD
Washington Dulles Intl
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
IAD
Washington Dulles Intl

Last minute flights from Washington Dulles Intl to Houston

Late deals on round-trip flights to Houston from Washington Dulles Intl, departing today and this week
22 Jan - 28 Feb
$142pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl
22 Jan - 24 Jan
$148pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl
22 Jan - 31 Jan
$156pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
IAD
Washington Dulles Intl

One-way flights to Houston from Washington Dulles Intl

The cheapest one-way flights from Washington Dulles Intl to Houston
2:25 pm - 2:55 pm
Frontier
1 Stop
25h 30m
IAD - IAH
Frontier
$110
Kiwi.com
1:00 am - 10:41 am
American Airlines
2 Stops
10h 41m
IAD - IAH
American Airlines
9:12 am - 2:03 pm
Multiple Airlines
3 Stops
29h 51m
IAD - IAH
Multiple Airlines
$133
Gotogate

Related info for your journey

Useful info, stats and facts about Washington Dulles Intl to Houston flights.

Flight FAQs

From Washington Dulles Intl to Houston

Are flight prices decreasing from Washington Dulles Intl to Houston due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Washington Dulles Intl and Houston for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Washington Dulles Intl to Houston George Bush Intcntl to control the spread of COVID-19?

New policies can now be found on Delta to help keep travelers safe while flying. New policies for travelers booking flights from Washington Dulles Intl to Houston George Bush Intcntl include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Washington Dulles Intl to Houston George Bush Intcntl have flexible cancellations due to COVID-19?

Some of our airline partners flying from Washington Dulles Intl to Houston George Bush Intcntl have new flexible policies in place due to COVID-19. United Airlines, American Airlines, and Delta are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

Can I find flights from Washington Dulles Intl to Houston for under $200 on Cheapflights?

Yes, there are multiple flights from Washington Dulles Intl to Houston for under $200. The cheapest flight booked recently is on Multiple Airlines for just $137, but on average you can expect to pay $152.

Are there nonstop flights from Washington Dulles Intl to Houston for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington Dulles Intl to Houston under $300. A good price for a nonstop flight from Washington Dulles Intl to Houston is less than $343.

Are there last-minute flights available from Washington Dulles Intl to Houston for under $200?

There are currently 20+ open flights from Washington Dulles Intl to Houston within the next 7 days for less than $200.

What days are nonstop flights available from Washington Dulles Intl to Houston?

Days when nonstop flights are available for this flight are: Thursday.

How many flights depart from Washington Dulles Intl to Houston on average per day?

10 flight departures from Washington Dulles Intl to Houston George Bush Intcntl per day on average.
Afternoon (Noon - 6pm) - 80% of flight departures
Evening (6pm - Midnight) - 20% of flight departures

Does it rain more in Washington Dulles Intl or Houston?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Washington Dulles Intl is typically less than Houston. We can gather that this will continue over the next 15 days.

Is Washington Dulles Intl weather warmer or cooler than Houston?

You can imagine temperatures to be in the 88 °F range in July. The weather in Houston is generally colder than Washington Dulles Intl's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

What is the cheapest airline to fly from Washington Dulles Intl to Houston round-trip?

Cheapflights users have booked flights from Washington Dulles Intl to Houston round-trip from $147. Frontier is priced at 53% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Washington Dulles Intl to Houston one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $76. Users have also found prices from $101 and $128 on Frontier and United Airlines, respectively.

Destination information for Houston

Things to know before you go. Useful info for your trip from Washington Dulles Intl to Houston
Average temperature for January in Houston
59.0 °F

Airports servicing Washington

Airports servicing Houston

Top 5 airlines flying from Washington Dulles Intl to Houston

The chart below displays the airlines Cheapflights users traveling from Washington Dulles Intl to Houston choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Spirit Airlines
$80 $205 No cancel fee 65%
Frontier
$115 $231 No cancel fee 62%
Delta
$167 $293 No cancel fee N/A
American Airlines
$146 $326 No cancel fee 71%
United Airlines
$254 $399 No cancel fee 69%

Hourly flight availability from Washington Dulles Intl to Houston

Afternoon Noon to 6 PM 51% of IAD to IAH departures
Early morning Midnight to 6 AM 30% of IAD to IAH departures
Morning 6 AM to noon 19% of IAD to IAH departures
Evening 6 PM to midnight 0% of IAD to IAH departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Washington Dulles Intl to Houston
Sunday
12 daily flights
Monday
12 daily flights
Tuesday
12 daily flights
Wednesday
12 daily flights
Thursday
12 daily flights
Friday
5 daily flights
Saturday
10 daily flights
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