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

Round-trip from | $97 (Kiwi.com) |
|---|---|
One-way from | $58 (Super.com) |
Popular in | March |
Cheapest in | October |
Average price | $311 |
Fly from
Fly to
Route
Depart
Return
Price
HoustonBaltimore
IAH - BWI
IAHBWI
Houston George Bush Intcntl
Thu 1/8
2:23 pm-6:27 pm
Nonstop3h 04m
Baltimore/Washington
Mon 1/12
11:45 am-5:00 pm
1 stop6h 15m
HoustonWashington, D.C.
IAH - IAD
IAHIAD
Houston George Bush Intcntl
Thu 12/25
6:00 am-6:16 pm
1 stop11h 16m
Washington, D.C. Dulles Intl
Thu 1/8
6:00 am-5:00 pm
1 stop12h 00m
HoustonBaltimore
IAH - BWI
IAHBWI
Houston George Bush Intcntl
Mon 12/29
7:45 pm-8:29 am
1 stop11h 44m
Baltimore/Washington
Thu 1/1
8:38 pm-11:16 pm
Nonstop3h 38m
HoustonBaltimore
HOU - BWI
HOUBWI
Houston Hobby
Sun 2/1
6:00 am-9:55 am
Nonstop2h 55m
Baltimore/Washington
Wed 2/4
6:00 pm-8:45 pm
Nonstop3h 45m
HoustonBaltimore
HOU - BWI
HOUBWI
Houston Hobby
Sat 1/24
5:30 am-9:25 am
Nonstop2h 55m
Baltimore/Washington
Sun 1/25
9:40 am-12:25 pm
Nonstop3h 45m
HoustonWashington, D.C.
IAH - IAD
IAHIAD
Houston George Bush Intcntl
Wed 12/31
6:10 am-5:47 pm
1 stop10h 37m
Washington, D.C. Dulles Intl
Mon 1/12
6:00 am-5:00 pm
1 stop12h 00m
HoustonBaltimore
HOU - BWI
HOUBWI
Houston Hobby
Sat 1/31
5:45 am-11:55 am
1 stop5h 10m
Baltimore/Washington
Wed 2/4
10:33 am-4:10 pm
1 stop6h 37m
HoustonBaltimore
HOU - BWI
HOUBWI
Houston Hobby
Sat 1/24
6:00 am-2:49 pm
1 stop7h 49m
Baltimore/Washington
Sun 1/25
6:07 am-12:09 pm
1 stop7h 02m
HoustonBaltimore
IAH - BWI
IAHBWI
Houston George Bush Intcntl
Fri 1/9
6:22 pm-10:25 pm
Nonstop3h 03m
Baltimore/Washington
Mon 1/12
8:07 am-10:53 am
Nonstop3h 46m
HoustonBaltimore
HOU - BWI
HOUBWI
Houston Hobby
Tue 2/3
5:45 am-11:54 am
1 stop5h 09m
Baltimore/Washington
Sat 2/7
5:30 pm-10:33 pm
1 stop6h 03m
Booking 72 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.
Currently, February is the cheapest month in which you can book a flight from Houston to Washington, D.C. (average of $50). Flying from Houston to Washington, D.C. in July is currently the most expensive (average of $124). 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.
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.
Travelers seeking maximum savings on their Houston to Washington, D.C. 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.
About 25% of weekly flights between Houston and Washington, D.C. have experienced delays in the past year, with the average delay time being 128 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Southwest have had the lowest number of delays on this route, with just 25% of flights being delayed.
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$210 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$72 | Average$241 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$144 | Average$330 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$147 | Average$427 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$147 | Average$386 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$183 | Average$341 | FlexibilityNo cancel fee | On-time63% |