What is the cheapest month to book a flight from Brownsville to Washington, D.C. Dulles Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Brownsville to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Brownsville to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from BRO to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Brownsville to Washington, D.C. Dulles Intl Airport as you normally would.

What airport do you fly from for flights from Brownsville to Washington, D.C. Dulles Intl?

For a flight from Brownsville to Washington, D.C. Dulles Intl, you will be flying from South Padre Is. Intl. Brownsville South Padre Is. Intl (BRO) is just 4.5 mi from the center of the city. South Padre Is. Intl is the only Brownsville airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 0 airlines have flights to Washington, D.C. Dulles Intl from Brownsville South Padre Is. Intl on a regular basis.

Can I find deals for flights from Brownsville to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Brownsville to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Brownsville to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Brownsville to Dulles Intl.

Can I find deals for business class flights from Brownsville to Dulles Intl?

Yes. Cheapflights offers flight deals from Brownsville to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$313+ Flights from Brownsville to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Brownsville to Dulles Intl

Round-trip from	$374 (United Airlines)
One-way from	$313 (United Airlines)

From Brownsville South Padre Is. Intl to Washington, D.C. Dulles Intl

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One-way flight from Brownsville South Padre Is. Intl to Washington, D.C. Dulles Intl

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Find flight deals from Brownsville to Dulles Intl

Cheapest flights from Brownsville to Dulles Intl
Explore the most affordable flight options available from Brownsville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Thu 7/315:26 amBRO - IAD

2 stops10h 43mAmerican Airlines

Tue 8/511:49 amIAD - BRO

1 stop7h 55mAmerican Airlines

Deal found 7/27

$414

Thu 7/315:19 pmBRO - IAD

1 stop5h 39mUnited Airlines

Tue 8/55:55 pmIAD - BRO

1 stop6h 37mUnited Airlines

Deal found 7/27

$469

Best flights from Brownsville to Dulles Intl
Discover carefully curated flight deals from Brownsville to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sat 10/115:15 pmBRO - IAD

1 stop5h 36mUnited Airlines

Sun 10/126:01 amIAD - BRO

1 stop6h 19mUnited Airlines

Deal found 7/29

$374

Mon 8/116:37 pmBRO - IAD

2 stops19h 42mAmerican Airlines

Fri 8/157:25 pmIAD - BRO

2 stops15h 37mAmerican Airlines

Deal found 7/27

$584

Last-minute flights from Brownsville to Dulles Intl
Discover last-minute flight deals from Brownsville to Dulles Intl. Data last updated July 29, 2025 and is based on user searches.

Thu 7/315:26 amBRO - IAD

2 stops10h 43mAmerican Airlines

Tue 8/511:49 amIAD - BRO

1 stop7h 55mAmerican Airlines

Deal found 7/27

$414

Thu 7/315:19 pmBRO - IAD

1 stop5h 39mUnited Airlines

Tue 8/55:55 pmIAD - BRO

1 stop6h 37mUnited Airlines

Deal found 7/27

$469

Thu 8/75:19 pmBRO - IAD

1 stop5h 39mUnited Airlines

Mon 8/115:55 pmIAD - BRO

1 stop6h 37mUnited Airlines

Deal found 7/27

$579

One-way flights from Brownsville to Dulles Intl
Search for one-way flight options from Brownsville to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sat 8/165:19 pmBRO - IAD

2 stops16h 56mUnited Airlines

Deal found 7/29

$313

Cheapflights Fare Finder

Use the filters below to find and compare flights from Brownsville to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrownsvilleWashington, D.C.

BRO - IAD

BROIAD

Brownsville South Padre Is. Intl

Sat 10/11

5:15 pm-11:51 pm

1 stop5h 36m

Washington, D.C. Dulles Intl

Sun 10/12

6:01 am-11:20 am

1 stop6h 19m

$374

BrownsvilleWashington, D.C.

BRO - IAD

BROIAD

Brownsville South Padre Is. Intl

Mon 8/11

6:37 pm-3:19 pm

2 stops19h 42m

Washington, D.C. Dulles Intl

Fri 8/15

7:25 pm-10:02 am

2 stops15h 37m

$584

BrownsvilleWashington, D.C.

BRO - IAD

BROIAD

Brownsville South Padre Is. Intl

Sat 8/16

5:19 pm-11:15 am

2 stops16h 56m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Brownsville to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Brownsville with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with United Airlines and American Airlines from Brownsville to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,899 reviews

Reviews

1 / 20

8.0

Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

United Airlines

7.4

Good

8,899 reviews

United Airlines

7.4

Good

8,899 reviews

Reviews

1 / 20

8.0

Excellent

Mignon,Nov 2024

IAH - LGA

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,899 reviews

Reviews

1 / 20

8.0

Excellent

Mignon,Nov 2024

IAH - LGA

Related info for your journey

What airport do you fly from for flights from Brownsville to Washington, D.C. Dulles Intl?
For a flight from Brownsville to Washington, D.C. Dulles Intl, you will be flying from South Padre Is. Intl. Brownsville South Padre Is. Intl (BRO) is just 4.5 mi from the center of the city. South Padre Is. Intl is the only Brownsville airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 0 airlines have flights to Washington, D.C. Dulles Intl from Brownsville South Padre Is. Intl on a regular basis.
Can I find deals for flights from Brownsville to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Brownsville to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Brownsville to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Brownsville to Dulles Intl.
Can I find deals for business class flights from Brownsville to Dulles Intl?
Yes. Cheapflights offers flight deals from Brownsville to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Brownsville to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Brownsville to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Brownsville to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

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$313+ Cheap flights from Brownsville (BRO) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Brownsville to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Brownsville to Dulles Intl

Round-trip from

One-way from

Find flight deals from Brownsville to Dulles Intl

Cheapest flights from Brownsville to Dulles IntlExplore the most affordable flight options available from Brownsville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Brownsville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Brownsville to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Brownsville to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Brownsville with our price prediction graph.

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with United Airlines and American Airlines from Brownsville to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Brownsville to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Brownsville to Washington, D.C. Dulles Intl?

Can I find deals for flights from Brownsville to Dulles Intl that include hotel bookings?

How can I find direct flights from Brownsville to Dulles Intl?

Can I find deals for business class flights from Brownsville to Dulles Intl?

What is the cheapest month to book a flight from Brownsville to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Brownsville to Dulles Intl

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Cheapest flights from Brownsville to Dulles Intl
Explore the most affordable flight options available from Brownsville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.