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Cheap flights from Houston George Bush Intcntl Airport to Washington, D.C. from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to Washington, D.C. departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Houston George Bush Intcntl Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:00 pm - 1:02 pm
IAH
-
DCA
17h 02m1 stop
Frontier Logo
2:00 pm - 7:14 pm
DCA
-
IAH
30h 14m1 stop
$139Frontier
Sat, Feb 7 - Tue, Feb 10
Frontier Logo
7:35 am - 4:59 pm
IAH
-
DCA
8h 24m1 stop
Frontier Logo
2:00 pm - 11:39 pm
DCA
-
IAH
10h 39m1 stop
$140Frontier
Wed, Jan 14 - Wed, Jan 21
Frontier Logo
10:30 am - 9:59 pm
IAH
-
DCA
10h 29m1 stop
Frontier Logo
6:00 pm - 3:13 pm
DCA
-
IAH
22h 13m1 stop
$142Frontier
Sat, Jan 24 - Mon, Jan 26
Frontier Logo
10:30 am - 9:59 pm
IAH
-
DCA
10h 29m1 stop
Frontier Logo
8:00 am - 3:15 pm
DCA
-
IAH
8h 15m1 stop
$143Frontier
Wed, Jan 14 - Sat, Jan 17
Frontier Logo
12:30 pm - 4:59 pm
IAH
-
DCA
27h 29m1 stop
Frontier Logo
6:00 pm - 11:39 pm
DCA
-
IAH
30h 39m1 stop
$146Frontier
Tue, Jan 13 - Tue, Jan 20
Frontier Logo
10:30 am - 9:59 pm
IAH
-
DCA
10h 29m1 stop
Frontier Logo
2:00 pm - 11:39 pm
DCA
-
IAH
10h 39m1 stop
$155Frontier
Sat, Jan 24 - Wed, Jan 28
Frontier Logo
6:45 am - 9:59 pm
IAH
-
DCA
14h 14m1 stop
Frontier Logo
2:00 pm - 11:39 pm
DCA
-
IAH
10h 39m1 stop
$156Frontier
Thu, Jan 22 - Sat, Jan 24
Frontier Logo
6:45 am - 9:59 pm
IAH
-
DCA
14h 14m1 stop
Frontier Logo
8:00 am - 11:32 pm
DCA
-
IAH
16h 32m1 stop
$158Frontier
Thu, Jan 29 - Tue, Feb 17
Frontier Logo
7:34 pm - 9:59 pm
IAH
-
DCA
25h 25m2 stops
Frontier Logo
6:00 pm - 11:39 pm
DCA
-
IAH
30h 39m1 stop
$170Frontier
Tue, Jan 13 - Tue, Jan 20
Frontier Logo
4:10 pm - 4:59 pm
IAH
-
DCA
23h 49m1 stop
Frontier Logo
8:00 am - 12:33 am
DCA
-
IAH
17h 33m1 stop
$174Frontier
Sat, Jan 17 - Sat, Feb 28

Frontier flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport

Our best Frontier deals on Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport flight tickets
Frontier
Feb 7
IAH7:00 pmHouston George Bush Intcntl
17h 02m
1 stop
DCA1:02 pmWashington, D.C. Reagan-National
Feb 10
DCA2:00 pmWashington, D.C. Reagan-National
30h 14m
1 stop
IAH7:14 pmHouston George Bush Intcntl
$139
Find similar
Frontier
Jan 14
IAH7:35 amHouston George Bush Intcntl
8h 24m
1 stop
DCA4:59 pmWashington, D.C. Reagan-National
Jan 21
DCA2:00 pmWashington, D.C. Reagan-National
10h 39m
1 stop
IAH11:39 pmHouston George Bush Intcntl
$140
Find similar
Frontier
Jan 24
IAH10:30 amHouston George Bush Intcntl
10h 29m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Jan 26
DCA6:00 pmWashington, D.C. Reagan-National
22h 13m
1 stop
IAH3:13 pmHouston George Bush Intcntl
$142
Find similar

Delta flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport

Our best Delta deals on Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport flight tickets
Delta
Dec 25
IAH7:00 amHouston George Bush Intcntl
7h 05m
1 stop
DCA3:05 pmWashington, D.C. Reagan-National
Dec 31
DCA5:42 pmWashington, D.C. Reagan-National
7h 09m
1 stop
IAH11:51 pmHouston George Bush Intcntl
$313
Find similar
Delta
Dec 24
IAH11:58 amHouston George Bush Intcntl
7h 34m
1 stop
DCA8:32 pmWashington, D.C. Reagan-National
Dec 31
DCA5:42 pmWashington, D.C. Reagan-National
7h 09m
1 stop
IAH11:51 pmHouston George Bush Intcntl
$356
Find similar
Delta
Dec 24
IAH11:58 amHouston George Bush Intcntl
7h 34m
1 stop
DCA8:32 pmWashington, D.C. Reagan-National
Dec 31
DCA5:42 pmWashington, D.C. Reagan-National
7h 09m
1 stop
IAH11:51 pmHouston George Bush Intcntl
$406
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Sat 2/7

7:00 pm-1:02 pm

1 stop17h 02m

Washington, D.C. Reagan-National

Tue 2/10

2:00 pm-7:14 pm

1 stop30h 14m

$139

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Wed 1/14

7:35 am-4:59 pm

1 stop8h 24m

Washington, D.C. Reagan-National

Wed 1/21

2:00 pm-11:39 pm

1 stop10h 39m

$140

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Sat 1/24

10:30 am-9:59 pm

1 stop10h 29m

Washington, D.C. Reagan-National

Mon 1/26

6:00 pm-3:13 pm

1 stop22h 13m

$142

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Wed 1/14

10:30 am-9:59 pm

1 stop10h 29m

Washington, D.C. Reagan-National

Sat 1/17

8:00 am-3:15 pm

1 stop8h 15m

$143

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Tue 1/13

12:30 pm-4:59 pm

1 stop27h 29m

Washington, D.C. Reagan-National

Tue 1/20

6:00 pm-11:39 pm

1 stop30h 39m

$146

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Sat 1/24

10:30 am-9:59 pm

1 stop10h 29m

Washington, D.C. Reagan-National

Wed 1/28

2:00 pm-11:39 pm

1 stop10h 39m

$155

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Thu 1/22

6:45 am-9:59 pm

1 stop14h 14m

Washington, D.C. Reagan-National

Sat 1/24

2:00 pm-11:39 pm

1 stop10h 39m

$156

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Thu 1/29

6:45 am-9:59 pm

1 stop14h 14m

Washington, D.C. Reagan-National

Tue 2/17

8:00 am-11:32 pm

1 stop16h 32m

$158

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Tue 1/13

7:34 pm-9:59 pm

2 stops25h 25m

Washington, D.C. Reagan-National

Tue 1/20

6:00 pm-11:39 pm

1 stop30h 39m

$170

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Sat 1/17

4:10 pm-4:59 pm

1 stop23h 49m

Washington, D.C. Reagan-National

Sat 2/28

8:00 am-12:33 am

1 stop17h 33m

$174

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of August is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Houston George Bush Intcntl Airport, with most prices found around $303. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of August, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $307.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport is on a Thursday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Thursday will often find tickets for as low as $329. Flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $349. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Washington, D.C. Reagan-National Airport in the afternoon for as low as $352. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is at noon when prices are around $447.

What is the cheapest Houston George Bush Intcntl to Washington, D.C. Reagan-National flight route?

Fly from Houston George Bush Intcntl to Washington, D.C. Reagan-National for the best Houston George Bush Intcntl - Washington, D.C. Reagan-National flight prices

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $378 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Houston George Bush Intcntl Airport for as low as $206 on momondo.

What cabin class options are available on Houston George Bush Intcntl to Washington, D.C. Reagan-National flights?

There are 4 cabin classes available to choose from on Houston George Bush Intcntl to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 23% on your flight if you consider stops on a Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport flight.

How have Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of December 2025, prices for Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport flights are approximately 21% more expensive when compared to flights at the same time last year.

When to book flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport (IAH to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport

Best Price Found

$217

Fastest flight time

2h 55m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Houston George Bush Intcntl Airport in the past 72 hours is $217. The best round-trip flight deal from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $352.
The fastest flight from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport takes 2h 55m
Direct flights go from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport every day.
Search flight deals

  • How far is Houston George Bush Intcntl to Washington, D.C. Reagan-National by plane?

    The straight-line distance from Houston George Bush Intcntl to Washington, D.C. Reagan-National is 1205.6 mi. By plane, this route typically takes 2h 55m.

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport refresh daily.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport?

  • What is the most popular airline from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport?

Best airlines flying from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
DeltaPriceFrom $144Free CancellationRating
7.9
8,005 reviews
Search Delta flights
American AirlinesPriceFrom $177Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights
United AirlinesPriceFrom $243Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights

  • United Airlines Flights From Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport

    Across 18 United Airlines flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport this week, the average price was $403, with the best United Airlines deals starting from $243 round-trip. 9,092 users have rated United Airlines on momondo, with an average score of 7.4/10.

  • American Airlines Flights From Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport

    American Airlines (7.2/10 from 11,055 reviews) operates around 9 flights from Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport in any given week. The average American Airlines airfare for this route is around $380, with deals from around $177 rare but found on momondo. Referenced prices are for round-trip Houston George Bush Intcntl Airport to Washington, D.C. Reagan-National Airport flight searches in the last 72 hours.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Bethesda

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Washington, D.C.?

Finding the right flight to Washington, D.C. from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Houston to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Houston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Houston to Washington, D.C.?

Once all potential Houston to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Houston to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Houston to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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