Cheap flights from Washington to San Salvador from $585 DCA, IAD → SAL
Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL)
The cheapest return found recently is $585 with Frontier Airlines, 1 Jan 2027 – 31 Jan 2027, found yesterday.
- Cheapest return found recently
- $585, 1 Jan 2027 to 31 Jan 2027
- Usual return price
- $627 to $782
- Cheapest month to fly
- January 2027, return fares from $556 found in the last 7 days
- Airlines with nonstop flights
- avianca airlines, Volaris El Salvador, Frontier Airlines, United Airlines
Return
The cheapest return fare on each of 18 departure dates is usually $627 to $782.
Cheapest return found recently
$585
1 Jan 2027 – 31 Jan 2027 · Frontier Airlines
Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL)
Leaves 7:53 a.m. · Return leaves 8:03 p.m. · 8 h 49 min of travel, both ways together
out nonstop, back nonstop · separate tickets likely: collect your bags and check in again
found yesterday
Cheapest nonstop return
$585
1 Jan 2027 – 31 Jan 2027 · Frontier Airlines
Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL)
Leaves 7:53 a.m. · Return leaves 8:03 p.m. · 8 h 49 min of travel, both ways together
out nonstop, back nonstop · separate tickets likely: collect your bags and check in again
found yesterday
Every nonstop date from Washington to San Salvador
Found recently, and the cheapest we hold
$585 1 Jan 2027 – 31 Jan 2027found yesterdaySee prices for these dates
$556 15 Jan 2027 – 22 Jan 2027found 6 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $272 to $623.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 18 departure dates from 13 Nov to 22 Mar 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 30-night return fares leaving within 3 days of 1 Jan 2027 to compare.
Every date we hold
305 fares on 18 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov – 20 Nov | $670 | avianca airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 16 Nov – 16 Dec | $636 | avianca airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 11 Dec – 8 Jan 2027 | $969 | avianca airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 19 Dec – 26 Dec | $850 | Frontier Airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back 1 stop | found yesterday | See prices for these dates |
| 21 Dec – 29 Dec | $929 | Frontier Airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out 1 stop, back nonstop | found 2 days ago | See prices for these dates |
| 25 Dec – 31 Jan 2027 | $790 | avianca airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out 1 stop, back nonstop | found 5 days ago | See prices for these dates |
| 29 Dec – 20 Jan 2027 | $769 | United Airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back 1 stop | found 6 days ago | See prices for these dates |
| 1 Jan 2027 – 31 Jan 2027 | $585 | Frontier Airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 8 Jan 2027 – 17 Jan 2027 | $578 | Frontier Airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out 1 stop, back nonstop | found 6 days ago | See prices for these dates |
| 13 Jan 2027 – 26 Jan 2027 | $588 | Volaris El Salvador | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 15 Jan 2027 – 22 Jan 2027 | $556 | Frontier Airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out 1 stop, back nonstop | found 6 days ago | See prices for these dates |
| 22 Jan 2027 – 5 Feb 2027 | $644 | Volaris El Salvador | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 31 Jan 2027 – 20 Feb 2027 | $627 | Frontier Airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out 2 stops, back 2 stops | found 3 days ago | See prices for these dates |
| 1 Feb 2027 – 5 Mar 2027 | $658 | Volaris El Salvador | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back 1 stop | found 7 days ago | See prices for these dates |
| 8 Feb 2027 – 16 Feb 2027 | $627 | Volaris El Salvador | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 19 Mar 2027 – 26 Mar 2027 | $787 | avianca airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out 1 stop, back nonstop | found 2 days ago | See prices for these dates |
| 20 Mar 2027 – 26 Mar 2027 | $766 | American Airlines | Ronald Reagan National Airport (DCA) → El Salvador International Airport (SAL) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 22 Mar 2027 – 30 Mar 2027 | $735 | United Airlines | Washington Dulles International Airport (IAD) → El Salvador International Airport (SAL) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $556.
Airlines on the cheapest dates: Frontier Airlines, avianca airlines, Volaris El Salvador, United Airlines, American Airlines.
Premium cabin fares from Washington to San Salvador
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 1 Jan 2027 – 31 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Washington to San Salvador?
Return
Fares 60 to 89 days before departure were typically 17% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $680 | $378 | +21% | 30 |
| 7–13 days | $678 | $548 | +20% | 27 |
| 14–29 days | $597 | $272 | +6% | 34 |
| 30–59 days | $600 | $272 | +7% | 41 |
| 60–89 days | $563 | $440 | Cheapest seen | 46 |
| 90–179 days | $660 | $366 | +17% | 21 |
| 180+ days | $687 | $677 | +22% | 16 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Baltimore → San Salvador
57 km from Washington
$641
$56 more than flying from Washington
1 Jan 2027 – 31 Jan 2027 · BWI → SAL · out 1 stop, back 1 stop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 1 Jan 2027 – 31 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Washington to San Salvador?
The cheapest return found recently is $585 with Frontier Airlines, 1 Jan 2027 to 31 Jan 2027, found yesterday. The cheapest return we hold, of any age, is $556 with Frontier Airlines, 15 Jan 2027 to 22 Jan 2027, found 6 days ago. The cheapest return fare on each of 18 departure dates is usually $627 to $782.
What is the cheapest month to fly from Washington to San Salvador?
January 2027 is the cheapest month for a return, from $556, 15 Jan 2027 to 22 Jan 2027, found 6 days ago.
How far ahead should I book a flight from Washington to San Salvador?
In 49 days of prices between 24 Sept and 11 Nov, return fares 60 to 89 days before departure were typically 17% lower than 0 to 6 days before departure.
Is there a direct flight from Washington to San Salvador?
Yes, the cheapest nonstop return found recently is $585 with Frontier Airlines, 1 Jan 2027 to 31 Jan 2027, found yesterday.
Which airlines have the cheapest flights from Washington to San Salvador?
Between 13 Nov and 22 Mar 2027, Frontier Airlines has the cheapest return on 6 of the 18 departure dates we hold, avianca airlines on 5 and Volaris El Salvador on 4.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work