
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $104 (Kiwi.com) |
One-way from | $72 (Kiwi.com) |
Popular in | April |
Cheapest in | August |
Average price | $283 |
Good round-trip deal | $166 or less |
Good one-way deal | $145 or less |
Fly from
Fly to
Route
Depart
Return
HoustonBaltimore
IAH - BWI
IAHBWI
Houston George Bush Intcntl
Fri 4/3
6:30 pm-10:44 pm
Nonstop3h 14m
Baltimore/Washington
Mon 4/6
5:50 pm-8:13 pm
Nonstop3h 23m
HoustonBaltimore
IAH - BWI
IAHBWI
Houston George Bush Intcntl
Tue 4/7
7:30 am-11:37 am
Nonstop3h 07m
Baltimore/Washington
Tue 4/14
8:10 am-10:42 am
Nonstop3h 32m
HoustonBaltimore
IAH - BWI
IAHBWI
Houston George Bush Intcntl
Wed 5/6
12:25 pm-4:33 pm
Nonstop3h 08m
Baltimore/Washington
Thu 5/7
7:05 pm-12:59 am
1 stop6h 54m
HoustonWashington, D.C.
IAH - IAD
IAHIAD
Houston George Bush Intcntl
Thu 5/7
6:39 pm-10:49 pm
Nonstop3h 10m
Washington, D.C. Dulles Intl
Mon 5/11
6:00 am-8:27 am
Nonstop3h 27m
HoustonWashington, D.C.
IAH - DCA
IAHDCA
Houston George Bush Intcntl
Wed 5/13
2:45 pm-6:50 pm
Nonstop3h 05m
Washington, D.C. Reagan-National
Sun 5/17
6:00 am-8:31 am
Nonstop3h 31m
HoustonWashington, D.C.
IAH - IAD
IAHIAD
Houston George Bush Intcntl
Sun 5/17
7:50 pm-11:59 pm
Nonstop3h 09m
Washington, D.C. Dulles Intl
Tue 5/19
6:00 am-8:27 am
Nonstop3h 27m
HoustonWashington, D.C.
IAH - DCA
IAHDCA
Houston George Bush Intcntl
Wed 5/6
12:25 pm-10:34 pm
1 stop9h 09m
Washington, D.C. Reagan-National
Tue 5/12
6:00 am-1:14 pm
1 stop8h 14m
HoustonWashington, D.C.
IAH - IAD
IAHIAD
Houston George Bush Intcntl
Tue 4/14
6:33 pm-10:44 pm
Nonstop3h 11m
Washington, D.C. Dulles Intl
Fri 4/17
8:30 am-11:03 am
Nonstop3h 33m
HoustonWashington, D.C.
IAH - DCA
IAHDCA
Houston George Bush Intcntl
Sun 5/31
7:50 pm-11:59 pm
Nonstop3h 09m
Washington, D.C. Reagan-National
Thu 6/4
10:58 am-1:19 pm
Nonstop3h 21m
HoustonWashington, D.C.
IAH - DCA
IAHDCA
Houston George Bush Intcntl
Wed 5/20
4:28 pm-10:44 pm
1 stop5h 16m
Washington, D.C. Reagan-National
Mon 5/25
6:05 am-10:39 am
1 stop5h 34m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
Booking 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston George Bush Intcntl Airport 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, September is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Washington, D.C. (average of $68). Flying from Houston George Bush Intcntl Airport to Washington, D.C. in June is currently the most expensive (average of $123). 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 Houston George Bush Intcntl Airport to Washington, D.C. in the afternoon. If you’re flexible enough to do this you can expect to save up to 4% on your trip compared to booking a flight in the evening.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport 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.
The most flights from IAH to WAS are scheduled on a Monday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Dane,Jan 2026
TYS - IAD
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Dane,Jan 2026
TYS - IAD
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Dane,Jan 2026
TYS - IAD
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Dane,Jan 2026
TYS - IAD
Food
Overall
Boarding
Comfort
Entertainment
Crew
Reviews
Dane,Jan 2026
TYS - IAD
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$63 | Average$179 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$91 | Average$243 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$144 | Average$343 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$177 | Average$404 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$196 | Average$386 | FlexibilityNo cancel fee | On-time71% |