Cheapest one-way
£ 390.26
United Airlines · 2 stops · 13 hr 17 min
One-way tickets on BOS–SAL recently started around £ 390.26.
Flights from Boston to San Salvador
Recent BookingTrolley searches found Boston to San Salvador fares from £ 779.73 — compare live BOS–SAL prices, airlines and durations below.
Boston to San Salvador flights overview
A direct Boston to San Salvador flight spans roughly 3,655 km and takes about 5 hr 35 min in the air. BookingTrolley found 7 airlines currently compete on the BOS–SAL corridor, with United Airlines posting one of the lowest fares at £ 779.73. One of them offers a nonstop option, which saves layover time but can cost more than connecting itineraries.
BookingTrolley's most recent fare data for the Boston to San Salvador route shows tickets from £ 779.73. Across the months we have sampled, the typical round-trip fare averages about £ 935.36. Nov tends to be the cheapest month to fly (around £ 779.73), while Jun is usually the most expensive at about £ 1,160.51 — a swing of roughly 49%.
Frequently asked questions about flying from Boston to San Salvador
According to BookingTrolley fare data on the Boston to San Salvador route (BOS–SAL), round-trip tickets started at £ 779.73. Prices are shown in USD for comparison; United Kingdom travellers should confirm the final checkout currency on BookingTrolley.
A nonstop flight from Boston to San Salvador takes about 5 hr 35 min in the air on the fastest outbound leg, based on BookingTrolley itinerary data from recent searches. Connecting flights add layover time and can extend total travel to a full day or more.
Recent BookingTrolley comparisons list United Airlines (from £ 779.73), American Airlines (from £ 903.76), Copa Airlines (from £ 927.46) among the lowest fares on Boston to San Salvador. Carrier availability changes with season and sales.
Mid-week departures and shoulder seasons usually cost less. According to BookingTrolley fare data on the Boston to San Salvador route (BOS–SAL), round-trip tickets started at £ 779.73. BookingTrolley helps United Kingdom travellers spot dips before peak travel.
Find cheap flights on popular routes
Explore fares from Boston, into San Salvador, and on related corridors with BookingTrolley.
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