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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Padre Island (average of $281). Flying from Washington, D.C. Dulles Intl Airport to South Padre Island in December is currently the most expensive (average of $416). 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.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to South Padre Island?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to South Padre Island flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in South Padre Island ranges from 1.1 - 5.9 inches per month. September is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit South Padre Island when rainfall is around 1.1 in.

If weather is an important factor for your trip to South Padre Island, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to South Padre Island?

April can be a great time to fly to South Padre Island from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $486. Cheapflights users have found deals in the month of April for as cheap as $348. The most expensive prices can be found in the month of May.

Can I find deals for flights from Dulles Intl to South Padre Island that include hotel bookings?

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

How can I find direct flights from Dulles Intl to South Padre Island?

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

Can I find deals for business class flights from Dulles Intl to South Padre Island?

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

$319+ Flights from Washington, D.C. Dulles Intl Airport to South Padre Island

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Cheap flight deals from Dulles Intl to South Padre Island

Round-trip from	$319 (American Airlines)
Popular in	May
Cheapest in	April
Average price	$373

From Washington, D.C. Dulles Intl to South Padre Island

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find flight deals from Dulles Intl to South Padre Island

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

Sat 10/115:37 pmIAD - BRO

1 stop6h 18mAmerican Airlines

Sat 10/182:57 pmBRO - IAD

1 stop6h 54mAmerican Airlines

Deal found 7/28

$319

Mon 8/255:55 pmIAD - BRO

1 stop6h 39mUnited Airlines

Thu 9/45:15 pmBRO - IAD

1 stop5h 40mUnited Airlines

Deal found 7/28

$349

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

Sat 10/115:37 pmIAD - BRO

1 stop6h 18mAmerican Airlines

Sat 10/182:57 pmBRO - IAD

1 stop6h 54mAmerican Airlines

Deal found 7/28

$319

Mon 8/255:55 pmIAD - BRO

1 stop6h 39mUnited Airlines

Thu 9/45:15 pmBRO - IAD

1 stop5h 40mUnited Airlines

Deal found 7/28

$349

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

Tue 8/511:49 amIAD - BRO

1 stop7h 55mAmerican Airlines

Tue 8/125:37 amBRO - IAD

2 stops8h 42mAmerican Airlines

Deal found 7/28

$434

Thu 8/76:10 amIAD - BRO

1 stop6h 15mUnited Airlines

Tue 8/125:10 amBRO - IAD

1 stop5h 22mUnited Airlines

Deal found 7/28

$489

Thu 8/145:00 amIAD - BRO

1 stop6h 03mAmerican Airlines

Tue 8/195:37 amBRO - IAD

2 stops8h 42mAmerican Airlines

Deal found 7/27

$354

Mon 8/255:55 pmIAD - BRO

1 stop6h 39mUnited Airlines

Thu 9/45:15 pmBRO - IAD

1 stop5h 40mUnited Airlines

Deal found 7/28

$349

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

Wed 8/69:50 amIAD - BRO

2 stops11h 50mUnited Airlines

Deal found 7/27

$593

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Brownsville

IAD - BRO

IADBRO

Washington, D.C. Dulles Intl

Sat 10/11

5:37 pm-10:55 pm

1 stop6h 18m

Brownsville South Padre Is. Intl

Sat 10/18

2:57 pm-10:51 pm

1 stop6h 54m

$319

Washington, D.C.Brownsville

IAD - BRO

IADBRO

Washington, D.C. Dulles Intl

Mon 8/25

5:55 pm-11:34 pm

1 stop6h 39m

Brownsville South Padre Is. Intl

Thu 9/4

5:15 pm-11:55 pm

1 stop5h 40m

$349

Washington, D.C.Brownsville

IAD - BRO

IADBRO

Washington, D.C. Dulles Intl

Wed 8/6

9:50 am-8:40 pm

2 stops11h 50m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Dulles Intl to South Padre Island

Have a flexible travel schedule? Discover the best time to fly to South Padre Island from Dulles Intl 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to South Padre Island

What is the cheapest time of day to fly from IAD to SO9?

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

Reviews of airlines servicing South Padre Island

Peruse reviews from past customers who have flown with United Airlines and American Airlines from Washington, D.C. Dulles Intl Airport to South Padre Island to help guide your decision. You can also see how each airline stacks up 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

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

United Airlines

7.4

Good

8,899 reviews

United Airlines

7.4

Good

8,899 reviews

Reviews

1 / 20

8.0

Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,899 reviews

Reviews

1 / 20

8.0

Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

Related info for your journey

Can I find deals for flights from Dulles Intl to South Padre Island that include hotel bookings?
Yes. In addition to deals on Dulles Intl to South Padre Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to South Padre Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to South Padre Island.
Can I find deals for business class flights from Dulles Intl to South Padre Island?
Yes. Cheapflights offers flight deals from Dulles Intl to South Padre Island 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 Washington, D.C. Dulles Intl Airport to South Padre Island?
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Padre Island (average of $281). Flying from Washington, D.C. Dulles Intl Airport to South Padre Island in December is currently the most expensive (average of $416). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to South Padre Island

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Complete your trip

South Padre Island car rentals

McAllen Miller Intl Airport car rentals

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Top 2 airlines flying from Dulles Intl to South Padre Island

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$193	Average$429	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$258	Average$472	FlexibilityNo cancel fee	On-time69%

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$319+ Cheap flights from Dulles Intl (IAD) to South Padre Island, TX

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to South Padre Island with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to South Padre Island

Keep the following information in mind while searching for Dulles Intl to South Padre Island flight deals. Data was last updated July 29, 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to South Padre Island

Cheapest flights from Dulles Intl to South Padre IslandExplore the most affordable flight options available from Dulles Intl to South Padre Island. 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 Dulles Intl to South Padre Island. 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 Washington, D.C. Dulles Intl Airport to South Padre Island that are best for you.

Best time to book a flight from Dulles Intl to South Padre Island

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

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to South Padre Island

What is the cheapest time of day to fly from IAD to SO9?

Find hourly flight availability from Dulles Intl to South Padre Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

Reviews of airlines servicing South Padre Island

Related info for your journey

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

Can I find deals for flights from Dulles Intl to South Padre Island that include hotel bookings?

How can I find direct flights from Dulles Intl to South Padre Island?

Can I find deals for business class flights from Dulles Intl to South Padre Island?

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

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 Dulles Intl to South Padre Island

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Dulles Intl to South Padre Island

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