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Cheap flights Washington — Houston

Washington (IAD, US) Houston (IAH, US)
from $104 1 961 km ~2h 48m 4 flights found 2 airlines cheapest on Wednesday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $104 on 20.11.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
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December 2026
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Prices found for 6 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
20 Nov 2026, Fri
Frontier Airlines F9 2959
23:58
IAD Washington Dulles International Airport
05:41
IAH George Bush Intercontinental Airport
5h 43m 1 stop
Gotogate
$104
View this ticket
20 Nov 2026, Fri
United Airlines UA 2655
14:00
IAD Washington Dulles International Airport
17:37
IAH George Bush Intercontinental Airport
3h 37m Direct
Farera
$291
View this ticket
Route characteristics
Distance
1 961 km
Flight time
2h 48m
Time difference
-1h
Minimum price
from $104 (20.11.2026)
Average price
$139
Maximum price
$146
Cheapest day
Wednesday
Departure airports (1)
IAD Washington Dulles International Airport
Arrival airports (1)
IAH George Bush Intercontinental Airport
Airlines (2)
F9 Frontier Airlines UA United Airlines
Agencies (3)
Gotogate Farera Tickets
Airlines — cheapest prices 2
Frontier Airlines
Frontier Airlines
Low-cost 2 flights · 2 days
$104
United Airlines
United Airlines
2 flights · 2 days
$191
Where to buy tickets 3
Gotogate
1 tickets · 1 days
from $104
Farera
2 tickets · 2 days
from $187
Tickets
1 tickets · 1 days
from $191
Airports

From — Washington (1)

  • IAD Washington Dulles International Airport

To — Houston (1)

  • IAH George Bush Intercontinental Airport
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Frequently asked questions about the route Washington — Houston
How long is the flight from Washington to Houston?
Approximate flight time — 2h 48m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Washington to Houston?
The straight-line distance — 1 961 km.
How much do flights from Washington to Houston cost?
The minimum price over 3 months — from $104 on 20.11.2026.
What is the average ticket price?
The average price — $139. Range: $104 — $146.
What is the time difference between Washington and Houston?
The difference — -1h.
From which airports does Washington operate flights?
From Washington: IAD (Washington Dulles International Airport).
To which airports in Houston do flights arrive?
To Houston: IAH (George Bush Intercontinental Airport).
Which airlines fly this route?
This route is served by 2 airlines: Frontier Airlines, United Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $291. Total direct flights found: 1.
Which day of the week is cheapest?
The cheapest day of the week — Wednesday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Washington — Houston

Flights Washington — Houston is a popular route. The straight-line distance is 1 961 km. Flight time 2h 48m. Time difference -1h.

From Washington (IAD) flights depart from 1 airport: IAD. To Houston (IAH) — 1 arrival airport: IAH.

2 airlines operate on this route: Frontier Airlines, United Airlines.

The minimum price for the next 3 months — from $104 (20.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $139, ranging from $104 to $146. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Wednesday.

Other destinations in United States from Washington
Pittsburgh
US
Norfolk
US
Portland
US
Philadelphia
US
Phoenix
US
Providence
US
Portland
US
Oklahoma City
US

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