# Who flies San Salvador → Washington Dulles nonstop?

**4 airlines fly San Salvador → Washington Dulles nonstop: Avianca, Frontier Airlines (seasonal), United Airlines (seasonal) and Volaris.**

| Airline | Routes | Book direct |
|---|---|---|
| Avianca | El Salvador (SAL) → Dulles (IAD) | https://www.avianca.com/ |
| Frontier Airlines | El Salvador (SAL) → Dulles (IAD) (Seasonal) | https://www.flyfrontier.com/ |
| United Airlines | El Salvador (SAL) → Dulles (IAD) (Seasonal) | https://www.united.com |
| Volaris | El Salvador (SAL) → Dulles (IAD) | http://www.volaris.com |

bookDirect is the airline's own website. picktheflight earns nothing from it.

Compare fares for SAL-IAD: [Trip.com](https://www.trip.com/flights/san-salvador-to-washington/tickets-SAL-IAD/?allianceid=1094387&sid=2209817&trip_sub1=c4c6f3cbcbb845d69061b1005-713359) · [Aviasales](https://www.aviasales.com/search/SAL0911IAD1?marker=713359). Affiliate links (Trip.com, Aviasales): picktheflight may earn a commission. It never changes the price or which airlines are listed.

On picktheflight: https://picktheflight.com/?from=SAL&to=IAD · JSON: https://picktheflight.com/intents/SAL/IAD

---
Data built 2026-10-12 from airline schedule tables on Wikipedia ("Airlines and destinations"), matched by exact airport article; airline booking sites from Wikidata. Schedules change. Confirm the flight on the airline's own site before booking.