$448 Cheap Flights from Washington (DCA) to Teresina (THE)

View $448 flight on Sun, May 3, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Teresina (THE-Senador Petronio Portella Regional)

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Cheap Flights from Washington to Teresina (DCA-THE)

Prices were available within the past 7 days and start at $448 for one-way flights and $898 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

LATAM Airlines Group
Thu, Apr 16 - Thu, Apr 23
DCA
Washington
THE
Teresina
$898 Roundtrip, found 1 day ago
$898
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Thu, Apr 16 from Washington to Teresina, returning Thu, Apr 23, priced at $898 found 1 day ago
JetBlue Airways
Fri, Apr 17 - Fri, Apr 24
DCA
Washington
THE
Teresina
$950 Roundtrip, found 3 hours ago
$950
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Fri, Apr 17 from Washington to Teresina, returning Fri, Apr 24, priced at $950 found 3 hours ago
LATAM Airlines Group
Thu, Apr 16 - Thu, Apr 23
DCA
Washington
THE
Teresina
$1,030 Roundtrip, found 1 day ago
$1,030
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Thu, Apr 16 from Washington to Teresina, returning Thu, Apr 23, priced at $1,030 found 1 day ago
LATAM Airlines Group
Tue, Jul 7 - Tue, Jul 28
DCA
Washington
THE
Teresina
$1,041 Roundtrip, found 1 day ago
$1,041
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Tue, Jul 7 from Washington to Teresina, returning Tue, Jul 28, priced at $1,041 found 1 day ago
LATAM Airlines Group
Thu, Apr 16 - Thu, Apr 23
DCA
Washington
THE
Teresina
$1,048 Roundtrip, found 1 day ago
$1,048
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Thu, Apr 16 from Washington to Teresina, returning Thu, Apr 23, priced at $1,048 found 1 day ago
LATAM Airlines Group
Fri, Apr 17 - Fri, Apr 24
DCA
Washington
THE
Teresina
$1,080 Roundtrip, found 3 hours ago
$1,080
Roundtrip
found 3 hours ago
Select LATAM Airlines Group flight, departing Fri, Apr 17 from Washington to Teresina, returning Fri, Apr 24, priced at $1,080 found 3 hours ago
LATAM Airlines Group
Fri, Apr 17 - Fri, Apr 24
DCA
Washington
THE
Teresina
$1,089 Roundtrip, found 3 hours ago
$1,089
Roundtrip
found 3 hours ago
Select LATAM Airlines Group flight, departing Fri, Apr 17 from Washington to Teresina, returning Fri, Apr 24, priced at $1,089 found 3 hours ago
LATAM Airlines Group
Fri, Apr 17 - Fri, Apr 24
DCA
Washington
THE
Teresina
$1,092 Roundtrip, found 3 hours ago
$1,092
Roundtrip
found 3 hours ago
Select LATAM Airlines Group flight, departing Fri, Apr 17 from Washington to Teresina, returning Fri, Apr 24, priced at $1,092 found 3 hours ago
JetBlue Airways
Fri, Apr 17 - Fri, Apr 24
DCA
Washington
THE
Teresina
$1,100 Roundtrip, found 3 hours ago
$1,100
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Fri, Apr 17 from Washington to Teresina, returning Fri, Apr 24, priced at $1,100 found 3 hours ago
Delta
Thu, Jul 2 - Sat, Jul 25
DCA
Washington
THE
Teresina
$1,252 Roundtrip, found 5 days ago
$1,252
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Jul 2 from Washington to Teresina, returning Sat, Jul 25, priced at $1,252 found 5 days ago

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Frequently asked questions

How much does a flight from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) cost?
You can find cheap one-way flights from $448 and cheap return flights from $898 Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) with Expedia. Return flights typically cost between $1586 and $5088. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
The cheapest month to fly from DCA to THE is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
Enter DCA to THE and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
GOL Linhas Aereas Inteligentes is one of the cheapest airlines offering connecting flights from Washington, DC (DCA) to Teresina (THE), with round-trip tickets starting from around $1,451.03. This route includes a layover in Miami Intl. (MIA). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
To find a cheap flight from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
The earliest flight from Washington, DC (Ronald Reagan Washington National) to Teresina (Senador Petronio Portella Regional) usually departs at around 5:00 AM. This seasonal service operates in December, allowing you to begin your journey early. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
a Wednesday typically has the most flights from Ronald Reagan Washington National (DCA) to Senador Petronio Portella Regional (THE), with approximately 44 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, United, and Air Canada.
What are the most popular departure times for flights from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
The most popular departure times for flights from Ronald Reagan Washington National (DCA) to Senador Petronio Portella Regional (THE) are from 12pm to 3pm. This time accounts for around 44% of total traffic, making it a busy period for travelers. Airlines such as Delta and American Airlines offer flights during this window, ensuring you have good options.
How long does it take to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
Flights from DCA to THE with one stop typically take around 23 hours, covering approximately 3,740 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
Select the "Business class" and "First class" filters when looking for DCA to THE flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) flight with Expedia?
It's easy to earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Teresina from Ronald Reagan Washington National (DCA)?
If you're planning to travel to Teresina from Ronald Reagan Washington National (DCA), you can fly typically into Senador Petronio Portella Regional (THE) Some flights may connect through major hubs like Miami Intl. (MIA), Pierre Elliott Trudeau Intl. (YUL), Orlando Intl. (MCO) before reaching Teresina. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) at the last minute?
Typically, booking a last minute flight from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) flight and hotel package?
Securing a Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional)?
If you booked your Washington, DC (DCA-Ronald Reagan Washington National) to Teresina (THE-Senador Petronio Portella Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Senador Petronio Portella Regional
Airlines serving
LATAM Airlines Group
Roundtrip price
$898
Distance
3739 mi

Book with confidence

Washington to Teresina Flights

The cheapest times to fly from Washington to Teresina

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Teresina are during the month of April. You can find some of the cheapest flights from Washington to Teresina with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Teresina

Sunday is one of the best days to book for cheap flights from Washington to Teresina: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Teresina

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Teresina in 2026. You can also book with separate airlines for your outbound and return journeys, from $448 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Teresina flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Teresina airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Teresina Flights

*Flight schedules are subject to change.

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*Available to One Key members.