Cheap Flights from Washington (IAD) to San Salvador (SAL)

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Flights from Washington (IAD) to San Salvador (SAL)
Origin airport
Washington Dulles Intl.
Destination airport
El Salvador Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Copa, Delta, Frontier Airlines, United, avianca
Distance
1899 mi

Washington to San Salvador Flights

The cheapest times to fly from Washington to San Salvador

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 San Salvador are during the month of . You can find some of the cheapest flights from Washington to San Salvador with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to San Salvador

Sunday is one of the best days to book for cheap flights from Washington to San Salvador: 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 San Salvador

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 San Salvador in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 San Salvador 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 San Salvador 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.

 

Frequently asked questions

How long does it take to fly from IAD to El Salvador Intl. Airport (SAL)?
Book your ticket with AVIANCA and you can expect to be cruising the skies for about 4 hours and 20 minutes. This top carrier has a direct flight that sets off at 7:30PM from Dulles Intl. Airport and lands at SAL at 9:50PM. Expedia has some of the best deals around, so check out what’s available on this route today.
Is it cheaper to buy a plane ticket from IAD to El Salvador Intl. Airport (SAL) last minute?
When it comes to booking your flights, being prepared pays off. While it may be possible to pick up a deal on an IAD to El Salvador Intl. Airport (SAL) flight at the last minute, tickets usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international trips it’s between three and four months.
What airline has the least delays from Washington Dulles Intl. Airport (IAD) to SAL?
If you don’t want to be waiting for hours — or worse, your travel plans left in tatters because of a flight delay — travel with AVIANCA. Around 93% of its Dulles Intl. Airport to El Salvador Intl. Airport Saint Oscar Arnulfo Romero y Galdámez services get in on time. You can review your flight status before you even get to the airport through the free Expedia App. It’ll also provide you with real-time alerts about other important info, like gate number changes and directions to your hotel. Think of it as a handy travel companion in your pocket!
What airports do you fly into for San Salvador from Washington?
El Salvador Intl. Airport (SAL) is the terminal where all Washington to San Salvador flights disembark. It’s around 20 mi southeast of central San Salvador. You’ll find irresistible deals on flights, car rentals, hotels and more when booking your San Salvador getaway with Expedia.
What are the most popular departure times for flights from Dulles Intl. Airport to El Salvador Intl. Airport (SAL)?
The most popular departure times for flights from IAD to El Salvador Intl. Airport (SAL) fall between 2:00 AM - 3:00 AM on Vuela El Salvador. A good tip is to jet off in the morning. The earlier you take off, the better your chances of a delay-free flight as air traffic hasn’t yet built up around airports.
Can I change the date of my flight from Washington Dulles Intl. Airport (IAD) to SAL?
It’s a snap to make changes to your Washington Dulles Intl. Airport (IAD) to El Salvador Intl. Airport (SAL) trip yourself. Access your details via the Expedia Trips portal and hit “change flight.” Look around for new flights and lock in the one that works with your new plans. You’ll get an estimate of applicable flight change costs. You can also find your way to our Customer Service portal to chat to our Virtual Agent and quickly get answers to your questions.

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