Cheap flights from Washington to Houston from $126 DCA, IAD → HOU, IAH
Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) → William P. Hobby Airport (HOU), George Bush Intercontinental Airport (IAH)
The cheapest return found recently is $305 with Frontier Airlines, 24 Dec – 28 Dec, found 2 days ago. The cheapest one-way found recently is $126 with Frontier Airlines, 13 Nov, found 3 days ago.
- Cheapest one-way found recently
- $126, found 3 days ago
- Cheapest return found recently
- $305, 24 Dec to 28 Dec
- Usual return price
- $130 to $259
- Cheapest month to fly
- December 2026, return fares from $116 found in the last 7 days
- Airlines with nonstop flights
- United Airlines, Southwest Airlines, American Airlines
Return
The cheapest return fare on each of 7 departure dates is usually $130 to $259.
Cheapest return found recently
$305
24 Dec – 28 Dec · Frontier Airlines
Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH)
Leaves 8:51 p.m. · Return leaves 2:51 p.m. · 18 h 55 min of travel, both ways together
out 1 stop, back 1 stop
found 2 days ago
Cheapest nonstop return
$415
23 Dec – 28 Dec · United Airlines
Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH)
Leaves 10:54 p.m. · Return leaves 10:55 p.m. · 6 h 21 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$305 24 Dec – 28 Decfound 2 days agoSee prices for these dates
$116 4 Dec – 7 Decfound 6 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $91 to $188.
At $305, the cheapest return found recently is above that range.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 7 departure dates from 16 Nov to 24 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold 4-night return fares on 1 other departure date within 3 days of 24 Dec, and it is not cheaper.
Every date we hold
137 fares on 7 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 16 Nov – 14 Dec | $160 | Frontier Airlines | Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 2 Dec – 6 Dec | $131 | Frontier Airlines | Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 3 Dec – 6 Dec | $212 | Frontier Airlines | Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 4 Dec – 7 Dec | $116 | Frontier Airlines | Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 6 Dec – 9 Dec | $129 | Frontier Airlines | Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 23 Dec – 28 Dec | $317 | Frontier Airlines | Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 24 Dec – 28 Dec | $305 | Frontier Airlines | Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $116.
Airlines on the cheapest dates: Frontier Airlines.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$126
13 Nov · Frontier Airlines
Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH)
Leaves 6:07 p.m. · 21 h 37 min trip
stops unknown
found 3 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$126 13 Novfound 3 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 42 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $51 to $268.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 13 Nov to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov | $126 | Frontier Airlines | Washington Dulles International Airport (IAD) → George Bush Intercontinental Airport (IAH) | stops unknown | found 3 days ago | Open this trip |
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Washington to Houston
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 24 Dec – 28 Dec in another cabin: Premium economy · Business · First
Today's prices for 13 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Washington to Houston?
Return
Fares 30 to 59 days before departure were typically 72% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $384 | $160 | +256% | 13 |
| 7–13 days | $273 | $136 | +153% | 25 |
| 14–29 days | $176 | $114 | +63% | 37 |
| 30–59 days | $108 | $91 | Cheapest seen | 35 |
| 60–89 days | $135 | $112 | +25% | 25 |
| 90–179 days | $188 | $162 | +74% | 16 |
| 180+ days | $1,793 | $1,793 | +1560% | 12 |
One-way
Fares 14 to 29 days before departure were typically 30% lower than 7 to 13 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (42 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 7–13 days | $102 | $82 | +43% | 8 |
| 14–29 days | $71 | $51 | Cheapest seen | 21 |
| 30–59 days | $75 | $68 | +6% | 14 |
| 60–89 days | $126 | $86 | +78% | 22 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Baltimore → Houston
57 km from Washington
$283
$22 less than flying from Washington
24 Dec – 28 Dec · BWI → IAH · out 1 stop, back 1 stop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Baltimore → Houston
57 km from Washington
$98
$28 less than flying from Washington
16 Nov · BWI → IAH · 1 stop
found 3 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 24 Dec – 28 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Washington to Houston?
The cheapest return found recently is $305 with Frontier Airlines, 24 Dec to 28 Dec, found 2 days ago. The cheapest return we hold, of any age, is $116 with Frontier Airlines, 4 Dec to 7 Dec, found 6 days ago. The cheapest return fare on each of 7 departure dates is usually $130 to $259.
How much is a one-way flight from Washington to Houston?
The cheapest one-way found recently is $126 with Frontier Airlines, 13 Nov, found 3 days ago.
What is the cheapest month to fly from Washington to Houston?
December 2026 is the cheapest month for a return, from $116, 4 Dec to 7 Dec, found 6 days ago.
How far ahead should I book a flight from Washington to Houston?
In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 72% lower than 0 to 6 days before departure. In 42 days of prices between 24 Sept and 11 Nov, one-way fares 14 to 29 days before departure were typically 30% lower than 7 to 13 days before departure.
Is there a direct flight from Washington to Houston?
Yes, the cheapest nonstop return found recently is $415 with United Airlines, 23 Dec to 28 Dec, found 2 days ago.
Which airlines have the cheapest flights from Washington to Houston?
Between 16 Nov and 24 Dec, Frontier Airlines has the cheapest return on all 7 departure dates we hold.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work