For a smooth departure from IAD, use the Aerotrain for quick access between terminals, but be prepared for long walks to some gates.
Round-trip from | $187 (Delta) |
---|---|
One-way from | $100 (Mytrip) |
Popular in | December |
Cheapest in | September |
Average price | $413 |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Houston
IAD - HOU
IADHOU
Washington, D.C. Dulles Intl
Sat 4/19
1:48 pm-5:47 pm
1 stop4h 59m
Houston Hobby
Sat 4/26
6:00 am-11:23 am
1 stop4h 23m
Washington, D.C.Houston
IAD - IAH
IADIAH
Washington, D.C. Dulles Intl
Sat 4/19
12:29 pm-7:30 pm
1 stop8h 01m
Houston George Bush Intcntl
Wed 4/23
6:00 am-11:23 am
1 stop4h 23m
Washington, D.C.Houston
IAD - IAH
IADIAH
Washington, D.C. Dulles Intl
Wed 4/23
4:52 pm-11:43 pm
2 stops7h 51m
Houston George Bush Intcntl
Sat 4/26
6:44 am-1:42 pm
1 stop5h 58m
Washington, D.C.Houston
IAD - IAH
IADIAH
Washington, D.C. Dulles Intl
Thu 5/1
9:14 am-6:32 pm
1 stop10h 18m
Houston George Bush Intcntl
Sat 5/3
8:17 am-4:34 pm
1 stop7h 17m
Washington, D.C.Houston
IAD - HOU
IADHOU
Washington, D.C. Dulles Intl
Sat 5/3
5:13 pm-10:40 pm
1 stop6h 27m
Houston Hobby
Wed 5/7
5:00 am-1:22 pm
2 stops7h 22m
Washington, D.C.Houston
IAD - IAH
IADIAH
Washington, D.C. Dulles Intl
Thu 5/1
5:40 pm-6:39 pm
3 stops25h 59m
Houston George Bush Intcntl
Tue 5/6
1:29 pm-11:20 am
3 stops20h 51m
Washington, D.C.Houston
IAD - IAH
IADIAH
Washington, D.C. Dulles Intl
Sat 4/19
10:12 pm-12:39 am
Nonstop3h 27m
Houston George Bush Intcntl
Tue 4/22
7:51 pm-11:59 pm
Nonstop3h 08m
Washington, D.C.Houston
IAD - HOU
IADHOU
Washington, D.C. Dulles Intl
Tue 4/29
7:50 am-5:15 pm
2 stops10h 25m
Houston Hobby
Wed 4/30
6:05 am-2:05 pm
1 stop7h 00m
Washington, D.C.Houston
IAD - HOU
IADHOU
Washington, D.C. Dulles Intl
Thu 5/22
12:49 pm-11:21 am
1 stop23h 32m
Houston Hobby
Sun 5/25
9:16 am-11:53 am
1 stop25h 37m
Washington, D.C.Houston
IAD - HOU
IADHOU
Washington, D.C. Dulles Intl
Fri 5/23
3:13 pm-7:12 pm
1 stop4h 59m
Houston Hobby
Sun 5/25
9:16 am-11:53 am
1 stop25h 37m
The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Houston may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Houston (average of $230). Flying from Washington, D.C. Dulles Intl Airport to Houston in March is currently the most expensive (average of $334). 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.
One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Houston is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 21% on airfare.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Houston flight should consider departing on Sunday evenings 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 Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.
If weather is an important factor for your trip to Houston, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).
Crew
Food
Overall
Entertainment
Comfort
Boarding
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Food
Overall
Entertainment
Comfort
Boarding
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Food
Overall
Entertainment
Comfort
Boarding
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Food
Overall
Entertainment
Comfort
Boarding
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Food
Overall
Entertainment
Comfort
Boarding
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Food
Overall
Entertainment
Comfort
Boarding
Reviews
Ila,Mar 2025
HOU - DAL
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$95 | Average$195 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$100 | Average$169 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$215 | Average$290 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$218 | Average$389 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$234 | Average$344 | FlexibilityNo cancel fee | On-time71% |