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

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The best prices from Houston to Washington Dulles Intl are usually found in September or October, booked 37 days in advance, depart on a Tuesday or Monday and return on a Saturday

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

IAH - IAD
Price
$277 - $366
IAD
Temperature
46.4 - 87.8 °F
IAD
Rainfall
2.5 - 4.4 inches
Popular in November High demand for flights, 9% potential price rise
Cheapest in September Best time to find cheap flights, 17% potential price drop
Round-trip from $277 From Houston to Washington Dulles Intl
One-way from $113 One-way flight from Houston to Washington Dulles Intl
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 Houston to Washington Dulles Intl?

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 20% on the overall cost on flights from Houston to Washington Dulles Intl.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 28 days in advance, which can save you up to 11% on flights from Houston to Washington Dulles Intl compared to booking the week you need them. Waiting 28 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $252. For sooner than that we have options available in the next 3 days from $276.

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

Flights from Houston to Washington Dulles Intl lean towards being more expensive in December. Prices are generally better when you fly from Houston to Washington Dulles Intl in February, with the cheapest ticket starting at $119.

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

When flying from Houston to Washington Dulles Intl, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 8% versus a flight in the noon.

Cheap flights from Houston to Washington Dulles Intl in August, September 2020

The best prices found for IAH to IAD flights for August, September
19 Aug - 24 Aug
$220pp
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
13 Aug - 17 Aug
$226pp
IAH
Houston George Bush Intcntl
Delta
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Delta
 
1 STOP
IAH
Houston George Bush Intcntl
21 Aug - 24 Aug
$230pp
IAH
Houston George Bush Intcntl
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
American Airlines
 
1 STOP
IAH
Houston George Bush Intcntl

Houston to Washington Dulles Intl 2020 flight deals

Cheap flights to Washington Dulles Intl from Houston found for this year
19 Aug - 24 Aug
$220pp
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
13 Aug - 17 Aug
$226pp
IAH
Houston George Bush Intcntl
Delta
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Delta
 
1 STOP
IAH
Houston George Bush Intcntl
21 Aug - 24 Aug
$230pp
IAH
Houston George Bush Intcntl
Multiple Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
American Airlines
 
1 STOP
IAH
Houston George Bush Intcntl

Non-stop flights to Washington Dulles Intl from Houston

Save time with Houston to Washington Dulles Intl direct flight deals
4 Dec - 6 Dec
$237pp
IAH
Houston George Bush Intcntl
Cape Air
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Cape Air
Non-Stop
IAH
Houston George Bush Intcntl
27 Jul - 9 Aug
$367pp
IAH
Houston George Bush Intcntl
Sun Country Air
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Sun Country Air
Non-Stop
IAH
Houston George Bush Intcntl
24 Jul - 26 Jul
$497pp
IAH
Houston George Bush Intcntl
Cape Air
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Cape Air
Non-Stop
IAH
Houston George Bush Intcntl

Last minute flights from Houston to Washington Dulles Intl

Late deals on round-trip flights to Washington Dulles Intl from Houston, departing today and this week
26 Jul - 8 Aug
$360pp
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
26 Jul - 8 Aug
$366pp
IAH
Houston George Bush Intcntl
Delta
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Delta
 
1 STOP
IAH
Houston George Bush Intcntl
27 Jul - 9 Aug
$367pp
IAH
Houston George Bush Intcntl
Sun Country Air
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
Sun Country Air
Non-Stop
IAH
Houston George Bush Intcntl

One-way flights to Washington Dulles Intl from Houston

The cheapest one-way flights from Houston to Washington Dulles Intl
11:40 am - 6:05 pm
Sun Country Air
1 Stop
5h 25m
IAH - IAD
Sun Country Air
$113
Ovago
1:45 am - 10:01 am
Delta
1 Stop
7h 16m
IAH - IAD
Delta
$253
Delta
5:45 am - 9:53 am
Spirit Airlines
Nonstop
3h 08m
IAH - IAD
Spirit Airlines
$255
Ovago

Related info for your journey

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

Flight FAQs

From Houston to Washington Dulles Intl

Are flight prices decreasing from Houston to Washington Dulles Intl 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 Houston and Washington Dulles Intl 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.

Can I find flights from Houston to Washington Dulles Intl for under $300 on Cheapflights?

Yes, there are multiple flights from Houston to Washington Dulles Intl for under $300. The cheapest flight booked recently is on Multiple Airlines for just $220, but on average you can expect to pay $266.

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

Cheapflights has at least 3 direct flights from Houston to Washington Dulles Intl under $300. A good price for a nonstop flight from Houston to Washington Dulles Intl is less than $367.

Are there last-minute flights available from Houston to Washington Dulles Intl for under $400?

There are currently 20+ open flights from Houston to Washington Dulles Intl within the next 7 days for less than $400.

Does it rain more in Houston or Washington Dulles Intl?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Houston is typically similar to Washington Dulles Intl. We can gather that this will continue over the next 14 days.

Is Houston weather warmer or cooler than Washington Dulles Intl?

With an average temperature of 88 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in Washington Dulles Intl are hotter than in Houston.

How long is the flight from Houston to Washington Dulles Intl?

For as low as $237, Cape Air can have you in Washington Dulles Intl from Houston in 3h 07m. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Houston to Washington Dulles Intl round-trip?

Delta, at $226, was found to be the cheapest airline from Houston to Washington Dulles Intl.Alternate airlines to your destination round-trip include Cape Air and Sun Country Air. Users have found that Delta is 31% cheaper than the other options available to this destination.

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

$109 is the cheapest one-way deal found within the past few days, from Cape Air. You may also be able to find cheap deals on Sun Country Air and Delta, with prices starting from $113 and $123, respectively.

Alternative routes for Houston to Washington Dulles Intl

Destination information for Washington Dulles Intl

Things to know before you go. Useful info for your trip from Houston to Washington Dulles Intl
Flight duration
3h 09m
Average temperature for August in Washington Dulles Intl
87.8 °F
Avg rainfall for August in Washington Dulles Intl
3.4 ″

Airports servicing Houston

Airports servicing Washington

Hourly flight availability from Houston to Washington Dulles Intl

Morning 6 AM to noon 72% of IAH to IAD departures
Evening 6 PM to midnight 21% of IAH to IAD departures
Afternoon Noon to 6 PM 6% of IAH to IAD departures
Early morning Midnight to 6 AM 1% of IAH to IAD departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Houston to Washington Dulles Intl
Sunday
8 daily flights
Monday
13 daily flights
Tuesday
13 daily flights
Wednesday
13 daily flights
Thursday
13 daily flights
Friday
13 daily flights
Saturday
13 daily flights