
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $125 (Kiwi.com) |
One-way from | $64 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $364 |
Good round-trip deal | $187 or less |
Good one-way deal | $113 or less |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Houston
DCA - IAH
DCAIAH
Washington, D.C. Reagan-National
Wed 6/24
6:59 am-11:56 pm
1 stop17h 57m
Houston George Bush Intcntl
Sat 8/22
7:00 am-8:38 pm
1 stop12h 38m
Washington, D.C.Houston
DCA - IAH
DCAIAH
Washington, D.C. Reagan-National
Wed 6/24
6:59 am-7:52 pm
1 stop13h 53m
Houston George Bush Intcntl
Mon 8/24
2:37 pm-11:48 pm
1 stop8h 11m
Washington, D.C.Houston
DCA - IAH
DCAIAH
Washington, D.C. Reagan-National
Tue 6/23
8:00 am-11:56 pm
1 stop16h 56m
Houston George Bush Intcntl
Mon 8/24
2:37 pm-11:48 pm
1 stop8h 11m
Washington, D.C.Houston
IAD - IAH
IADIAH
Washington, D.C. Dulles Intl
Thu 6/4
12:50 pm-3:11 pm
Nonstop3h 21m
Houston George Bush Intcntl
Wed 6/10
7:20 am-11:28 am
Nonstop3h 08m
Washington, D.C.Houston
IAD - IAH
IADIAH
Washington, D.C. Dulles Intl
Wed 6/3
10:20 pm-12:45 am
Nonstop3h 25m
Houston George Bush Intcntl
Thu 6/4
8:20 pm-12:31 am
Nonstop3h 11m
Washington, D.C.Houston
DCA - IAH
DCAIAH
Washington, D.C. Reagan-National
Mon 6/1
2:55 pm-5:14 pm
Nonstop3h 19m
Houston George Bush Intcntl
Thu 6/4
4:55 pm-9:06 pm
Nonstop3h 11m
Washington, D.C.Houston
DCA - IAH
DCAIAH
Washington, D.C. Reagan-National
Fri 7/10
5:29 pm-10:24 pm
1 stop5h 55m
Houston George Bush Intcntl
Tue 7/14
2:38 pm-11:52 pm
1 stop8h 14m
BaltimoreHouston
BWI - IAH
BWIIAH
Baltimore/Washington
Wed 6/3
6:20 am-11:51 am
1 stop6h 31m
Houston George Bush Intcntl
Sat 6/6
12:16 pm-4:30 pm
Nonstop3h 14m
BaltimoreHouston
BWI - IAH
BWIIAH
Baltimore/Washington
Wed 6/10
6:08 am-10:36 am
1 stop5h 28m
Houston George Bush Intcntl
Wed 6/10
2:43 pm-12:40 am
1 stop8h 57m
Washington, D.C.Houston
DCA - IAH
DCAIAH
Washington, D.C. Reagan-National
Thu 6/11
10:15 am-3:25 pm
1 stop6h 10m
Houston George Bush Intcntl
Mon 6/15
3:25 pm-10:59 pm
1 stop6h 34m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
The price you pay for your flight from Washington, D.C. to Houston George Bush Intcntl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 68 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. to Houston George Bush Intcntl Airport (average of $33). Flying from Washington, D.C. to Houston George Bush Intcntl Airport in February is currently the most expensive (average of $129). 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.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Houston George Bush Intcntl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight in the afternoon.
Travelers seeking maximum savings on their Washington, D.C. to Houston George Bush Intcntl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from WAS to IAH are scheduled on a Wednesday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).
Denver (DEN) – chosen by Cheapflights users on 89% of 1-stop itineraries from Washington, D.C. to Houston George Bush Intcntl Airport on Cheapflights.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $162.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 8h 42m.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 3h 41m.
About 12% of weekly flights between Washington, D.C. and Houston have experienced delays in the past year, with the average delay time being 168 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.
Entertainment
Overall
Boarding
Comfort
Food
Crew
Reviews
Dane,Jan 2026
IAD - TYS
Entertainment
Overall
Boarding
Comfort
Food
Crew
Reviews
Dane,Jan 2026
IAD - TYS
Entertainment
Overall
Boarding
Comfort
Food
Crew
Reviews
Dane,Jan 2026
IAD - TYS
Entertainment
Overall
Boarding
Comfort
Food
Crew
Reviews
Dane,Jan 2026
IAD - TYS
Entertainment
Overall
Boarding
Comfort
Food
Crew
Reviews
Dane,Jan 2026
IAD - TYS
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$180 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$76 | Average$212 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$376 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$179 | Average$412 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$186 | Average$337 | FlexibilityNo cancel fee | On-time71% |