Ontario to San Salvador flights in December 2026 from $1,625 ONT → SAL
Ontario International Airport (ONT) → El Salvador International Airport (SAL)
For departures in December 2026, the cheapest return found recently is $1,625 with Volaris, 22 Dec – 4 Jan 2027, found today.
Return
In December 2026, the cheapest return fare on each of 8 departure dates is usually $903 to $1,141. Across all 11 departure dates we hold on this route, it is usually $783 to $1,102.
Cheapest return found recently
$1,625
22 Dec – 4 Jan 2027 · Volaris
Ontario International Airport (ONT) → El Salvador International Airport (SAL)
out 2 stops, back nonstop
found today
Cheapest we hold, of any age
$688
1 Dec – 8 Dec · Frontier Airlines
Ontario International Airport (ONT) → El Salvador International Airport (SAL)
out 2 stops, back 2 stops
found 6 days ago
The cheapest dates in December 2026
| Dates | From | Airline | Stops | Found | |
|---|---|---|---|---|---|
| 1 Dec – 8 Dec | $688 | Frontier Airlines | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 15 Dec – 28 Dec | $826 | United Airlines | out 1 stop, back nonstop | found 3 days ago | See prices for these dates |
| 14 Dec – 28 Dec | $928 | United Airlines | out 1 stop, back nonstop | found 6 days ago | See prices for these dates |
| 23 Dec – 4 Jan 2027 | $1,010 | Frontier Airlines | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 29 Dec – 7 Jan 2027 | $1,100 | United Airlines | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Every date we hold
8 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Dec – 8 Dec | $688 | Frontier Airlines | Ontario International Airport (ONT) → El Salvador International Airport (SAL) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 11 Dec – 10 Jan 2027 | $1,255 | United Airlines | Ontario International Airport (ONT) → El Salvador International Airport (SAL) | out 1 stop, back 2 stops | found 5 days ago | See prices for these dates |
| 14 Dec – 28 Dec | $928 | United Airlines | Ontario International Airport (ONT) → El Salvador International Airport (SAL) | out 1 stop, back nonstop | found 6 days ago | See prices for these dates |
| 15 Dec – 28 Dec | $826 | United Airlines | Ontario International Airport (ONT) → El Salvador International Airport (SAL) | out 1 stop, back nonstop | found 3 days ago | See prices for these dates |
| 17 Dec – 3 Jan 2027 | $1,103 | United Airlines | Ontario International Airport (ONT) → El Salvador International Airport (SAL) | out 1 stop, back nonstop | found 5 days ago | See prices for these dates |
| 22 Dec – 4 Jan 2027 | $1,625 | Volaris | Ontario International Airport (ONT) → El Salvador International Airport (SAL) | out 2 stops, back nonstop | found today | See prices for these dates |
| 23 Dec – 4 Jan 2027 | $1,010 | Frontier Airlines | Ontario International Airport (ONT) → El Salvador International Airport (SAL) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 29 Dec – 7 Jan 2027 | $1,100 | United Airlines | Ontario International Airport (ONT) → El Salvador International Airport (SAL) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $601.
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