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Cheap flights from Washington, D.C. Dulles Intl Airport to San Salvador from C$ 142

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SAL
25 feb. — 4 mar.1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Salvador El Salvador Intl are usually found in September or October, booked 46 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from Dulles Intl to San Salvador

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to San Salvador
Explore the most affordable flight options available from Dulles Intl to San Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 enero 2026.

lun. 27/46:00 a.m.
IAD
-
SAL
1 stop10h 30m
United Airlines
jue. 21/51:20 p.m.
SAL
-
IAD
Nonstop4h 19m
United Airlines
Deal found 26/1C$ 305
dom. 10/56:00 a.m.
IAD
-
SAL
1 stop16h 49m
United Airlines
sáb. 23/56:00 a.m.
SAL
-
IAD
1 stop15h 51m
United Airlines
Deal found 26/1C$ 319
dom. 22/26:01 a.m.
IAD
-
SAL
1 stop16h 18m
United Airlines
jue. 26/24:40 p.m.
SAL
-
IAD
1 stop28h 36m
United Airlines
Deal found 26/1C$ 329
mar. 25/89:00 a.m.
IAD
-
SAL
Nonstop4h 29m
United Airlines
mié. 2/91:20 p.m.
SAL
-
IAD
Nonstop4h 20m
United Airlines
Deal found 26/1C$ 337
sáb. 21/25:35 p.m.
IAD
-
SAL
1 stop28h 44m
United Airlines
jue. 26/24:40 p.m.
SAL
-
IAD
1 stop28h 36m
United Airlines
Deal found 26/1C$ 338
mié. 13/510:20 p.m.
IAD
-
SAL
1 stop18h 10m
United Airlines
vie. 29/51:20 p.m.
SAL
-
IAD
Nonstop4h 19m
United Airlines
Deal found 26/1C$ 360
mié. 13/510:20 p.m.
IAD
-
SAL
1 stop18h 10m
United Airlines
lun. 1/61:20 p.m.
SAL
-
IAD
Nonstop4h 19m
United Airlines
Deal found 26/1C$ 367
dom. 7/68:50 a.m.
IAD
-
SAL
Nonstop4h 39m
United Airlines
mié. 22/71:20 p.m.
SAL
-
IAD
Nonstop4h 19m
United Airlines
Deal found 26/1C$ 373
jue. 14/510:20 p.m.
IAD
-
SAL
1 stop18h 10m
United Airlines
mié. 20/56:00 a.m.
SAL
-
IAD
1 stop15h 59m
United Airlines
Deal found 26/1C$ 374
lun. 18/510:20 p.m.
IAD
-
SAL
1 stop24h 29m
United Airlines
jue. 28/51:20 p.m.
SAL
-
IAD
Nonstop4h 19m
United Airlines
Deal found 25/1C$ 379
mié. 13/56:00 a.m.
IAD
-
SAL
1 stop10h 30m
United Airlines
mar. 2/66:00 a.m.
SAL
-
IAD
1 stop15h 51m
United Airlines
Deal found 26/1C$ 381
jue. 23/46:00 a.m.
IAD
-
SAL
1 stop16h 49m
United Airlines
jue. 30/43:40 p.m.
SAL
-
IAD
1 stop29h 09m
United Airlines
Deal found 26/1C$ 384

Find flight deals from Dulles Intl to San Salvador

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to San Salvador (SAL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 enero 2026.

Round-trip from

C$ 305

One-way from

C$ 142

Popular in

December

Cheapest in

September

Average price

C$ 434
United Airlines
  • United Airlines
  • 27/4-21/5
  • 1 total stop
  • 14h 49m total
  • Washington, D.C. to San Salvador
Search Deals
United Airlines
  • United Airlines
  • 9/5
  • 1 total stop
  • 24h 29m total
  • Washington, D.C. to San Salvador
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 151 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to San Salvador 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, Cheapflights users made 629,999 searches. Data last updated 26 enero 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Salvador that are best for you.

Fly from

Dulles Intl

Fly to

San Salvador

Route

Depart

Return

Price

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

lun. 4/5

10:20 p.m.-12:15 p.m.

1 stop15h 55m

San Salvador El Salvador Intl

mar. 26/5

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 305

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

mié. 13/5

6:00 a.m.-8:49 p.m.

1 stop16h 49m

San Salvador El Salvador Intl

vie. 29/5

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 360

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

dom. 17/5

10:20 p.m.-2:30 p.m.

1 stop18h 10m

San Salvador El Salvador Intl

vie. 29/5

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 360

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

mié. 13/5

6:00 a.m.-2:30 p.m.

1 stop10h 30m

San Salvador El Salvador Intl

jue. 28/5

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 360

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

jue. 14/5

10:20 p.m.-2:30 p.m.

1 stop18h 10m

San Salvador El Salvador Intl

mar. 2/6

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 367

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

dom. 17/5

10:20 p.m.-2:30 p.m.

1 stop18h 10m

San Salvador El Salvador Intl

mar. 2/6

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 367

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

vie. 15/5

10:20 p.m.-2:30 p.m.

1 stop18h 10m

San Salvador El Salvador Intl

mar. 2/6

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 367

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

mié. 13/5

10:20 p.m.-2:30 p.m.

1 stop18h 10m

San Salvador El Salvador Intl

mié. 3/6

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 367

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

jue. 14/5

10:20 p.m.-2:30 p.m.

1 stop18h 10m

San Salvador El Salvador Intl

mié. 3/6

1:20 p.m.-7:39 p.m.

Nonstop4h 19m

C$ 367

Washington, D.C.San Salvador

IAD - SAL

IADSAL

Washington, D.C. Dulles Intl

dom. 17/5

10:20 p.m.-2:30 p.m.

1 stop18h 10m

San Salvador El Salvador Intl

sáb. 30/5

6:00 a.m.-11:51 p.m.

1 stop15h 51m

C$ 374

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/1

Showing 1-10 of 20 results
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Best time to book a flight from Dulles Intl to San Salvador

Have a flexible travel schedule? Discover the best time to fly to San Salvador 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 San Salvador

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to San Salvador?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to San Salvador. Price data was last updated on 23 January 2026.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to San Salvador may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Salvador (average of C$ 174). Flying from Washington, D.C. Dulles Intl Airport to San Salvador in July is currently the most expensive (average of C$ 334). 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 time of day to fly from IAD to SAL?

Find hourly flight availability from Dulles Intl to San Salvador. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 enero 2026.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to San Salvador at noon. If you’re flexible enough to do this you can expect to save up to 59% on your trip compared to booking a flight in the morning.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to San Salvador. 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 into for flights to San Salvador from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to San Salvador, you will be flying into El Salvador Intl. San Salvador El Salvador Intl (SAL) is just 33.0 km from the centre of the city. El Salvador Intl is the only San Salvador airport and it handles 6 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to San Salvador El Salvador Intl from Washington, D.C. Dulles Intl on a regular basis.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to San Salvador?

    Airlines like United Airlines fly from Washington, D.C. Dulles Intl Airport to San Salvador in about 15h 55m. The time it takes to get you to your destination can typically vary by up to . There are 3055 km between Washington, D.C. Dulles Intl Airport and San Salvador.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to San Salvador?

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to San Salvador are Volaris Costa Rica (100%), ANA (94%) and Avianca (92%).

  • Can I find deals for flights from Dulles Intl to San Salvador that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to San Salvador?

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

  • Can I find deals for business class flights from Dulles Intl to San Salvador?

    Yes. Cheapflights offers flight deals from Dulles Intl to San Salvador 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 San Salvador?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Salvador (average of C$ 174). Flying from Washington, D.C. Dulles Intl Airport to San Salvador in July is currently the most expensive (average of C$ 334). 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

Travelling to a place near San Salvador?

Book flights to San Salvador if you plan to visit one of these locations
La Libertad
Sonsonate

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How does Cheapflights help users find flights from Dulles Intl to San Salvador?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dulles Intl to San Salvador. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to San Salvador?

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Can Cheapflights find flights from Dulles Intl to San Salvador with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Dulles Intl to San Salvador, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Dulles Intl to San Salvador become cheaper?

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