Cheap flights from Houston to Washington from $68 HOU, IAH → DCA, IAD
William P. Hobby Airport (HOU), George Bush Intercontinental Airport (IAH) → Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD)
The cheapest return found recently is $134 with Frontier Airlines, 3 Dec – 6 Dec, found 2 days ago. The cheapest one-way found recently is $68 with Frontier Airlines, 3 Dec, found 3 days ago.
- Cheapest one-way found recently
- $68, found 3 days ago
- Cheapest return found recently
- $134, 3 Dec to 6 Dec
- Usual return price
- $141 to $178
- Cheapest month to fly
- December 2026, return fares from $134 found in the last 7 days
- Airlines with nonstop flights
- United Airlines, Southwest Airlines, American Airlines
Return
The cheapest return fare on each of 3 departure dates is usually $141 to $178.
Cheapest return found recently
$134
3 Dec – 6 Dec · Frontier Airlines
George Bush Intercontinental Airport (IAH) → Washington Dulles International Airport (IAD)
Leaves 5:01 p.m. · Return leaves 11:02 a.m. · 51 h 45 min of travel, both ways together
out 1 stop, back 1 stop · via Fort Lauderdale-Hollywood International Airport (FLL), Miami International Airport (MIA) · overnight connection · 23 h connection
found 2 days ago
Cheapest nonstop return
$492
3 Dec – 6 Dec · Southwest Airlines
William P. Hobby Airport (HOU) → Ronald Reagan National Airport (DCA)
Leaves 7:15 p.m. · Return leaves 3:05 p.m. · 6 h 10 min of travel, both ways together
out nonstop, back nonstop
found 3 days ago
Found recently, and the cheapest we hold
$134 3 Dec – 6 Decfound 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 32 days, 28 Sept to 11 Nov, the cheapest return we saw each day was $113 to $230.
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 3 departure dates from 30 Nov to 3 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?
We hold no other 3-night return fares leaving within 3 days of 3 Dec to compare.
Every date we hold
77 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 30 Nov – 21 Dec | $207 | jetBlue | George Bush Intercontinental Airport (IAH) → Washington Dulles International Airport (IAD) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 2 Dec – 22 Dec | $148 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Washington Dulles International Airport (IAD) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 3 Dec – 6 Dec | $134 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Washington Dulles International Airport (IAD) | 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 $134.
Airlines on the cheapest dates: Frontier Airlines, jetBlue.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$68
3 Dec · Frontier Airlines
George Bush Intercontinental Airport (IAH) → Washington Dulles International Airport (IAD)
Leaves 5:01 p.m. · 27 h 45 min trip
1 stop
found 3 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$68 3 Decfound 3 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 30 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $56 to $260.
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 3 Dec to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 3 Dec | $68 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Washington Dulles International Airport (IAD) | 1 stop | found 3 days ago | Open this trip |
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Houston to Washington
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 3 Dec – 6 Dec in another cabin: Premium economy · Business · First
Today's prices for 3 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Houston to Washington?
Return
Fares 14 to 29 days before departure were typically 29% lower than 7 to 13 days before departure.
From the cheapest return each day between 28 Sept and 11 Nov (32 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 | $191 | $136 | +40% | 13 |
| 14–29 days | $136 | $115 | Cheapest seen | 21 |
| 30–59 days | $142 | $113 | +4% | 8 |
| 60–89 days | $229 | $229 | +68% | 8 |
| 90–179 days | $427 | $427 | +214% | 8 |
One-way
The cheapest fares were 14 to 29 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (30 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 |
|---|---|---|---|---|
| 14–29 days | $57 | $56 | Cheapest seen | 13 |
| 30–59 days | $71 | $56 | +25% | 14 |
| 180+ days | $260 | $260 | +356% | 8 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Houston → Baltimore
57 km from Washington
$166
$32 more than flying to Washington
3 Dec – 6 Dec · IAH → BWI · 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.
Live price for these dates
The cheapest return found recently is for 3 Dec – 6 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 Houston to Washington?
The cheapest return found recently is $134 with Frontier Airlines, 3 Dec to 6 Dec, found 2 days ago. The cheapest return fare on each of 3 departure dates is usually $141 to $178.
How much is a one-way flight from Houston to Washington?
The cheapest one-way found recently is $68 with Frontier Airlines, 3 Dec, found 3 days ago.
What is the cheapest month to fly from Houston to Washington?
December 2026 is the cheapest month for a return, from $134, 3 Dec to 6 Dec, found 2 days ago.
How far ahead should I book a flight from Houston to Washington?
In 32 days of prices between 28 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 29% lower than 7 to 13 days before departure. In 30 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 14 to 29 days before departure.
Is there a direct flight from Houston to Washington?
Yes, the cheapest nonstop return found recently is $492 with Southwest Airlines, 3 Dec to 6 Dec, found 3 days ago.
How long is the flight from Houston to Washington?
The cheapest one-way found recently, with Frontier Airlines on 3 Dec, takes 27 h 45 min with 1 stop.
Which airlines have the cheapest flights from Houston to Washington?
Between 30 Nov and 3 Dec, Frontier Airlines has the cheapest return on 2 of the 3 departure dates we hold, and jetBlue on 1.
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