BOS - SAL

C$ 477 Find Cheap Flights from Boston to San Salvador – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 810
Typical prices: C$ 615-C$ 992
United Airlines
Fri 19/1Sat 27/1
BOS - SAL • 1 stop
Cheapest direct flights
C$ 936
Typical prices: C$ 562-C$ 976
Avianca
Mon 26/2Wed 7/3
BOS - SAL • Direct
Direct flights
You can fly direct with Avianca. Average duration is 5h 33m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 21 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 715 (round-trip)
Shortest trip • 8h 32m (one-way)
Insights
Insights
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We hope you enjoy your trip to San Salvador!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to San Salvador (BOS-SAL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to San Salvador

Tue, 19 Jan - Wed, 27 Jan
United Airlines Logo
7:08 a.m. - 9:19 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
15h 11m1 stop Houston George Bush Intcntl
United Airlines Logo
11:54 p.m. - 10:39 a.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
9h 45m1 stop Newark
C$ 810United Airlines
Tue, 26 Jan - Tue, 9 Feb
United Airlines Logo
9:27 a.m. - 9:19 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
12h 52m1 stop Houston George Bush Intcntl
United Airlines Logo
7:00 a.m. - 11:13 p.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
15h 13m1 stop Houston George Bush Intcntl
C$ 810United Airlines
Sun, 24 Jan - Wed, 3 Feb
Delta Logo
8:15 p.m. - 1:10 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
17h 55m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:35 p.m. - 12:58 a.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
9h 23m1 stop Atlanta Hartsfield-Jackson
C$ 810Delta
Sun, 31 Jan - Thu, 4 Feb
Delta Logo
8:15 p.m. - 1:10 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
17h 55m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:35 p.m. - 12:58 a.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
9h 23m1 stop Atlanta Hartsfield-Jackson
C$ 810Delta
Mon, 1 Feb - Wed, 10 Feb
United Airlines Logo
10:35 a.m. - 10:47 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
13h 12m1 stop Newark
United Airlines Logo
11:54 p.m. - 12:43 p.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
11h 49m1 stop Newark
C$ 810United Airlines
Thu, 4 Feb - Mon, 8 Feb
United Airlines Logo
7:08 a.m. - 9:19 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
15h 11m1 stop Houston George Bush Intcntl
United Airlines Logo
11:54 p.m. - 6:23 p.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
17h 29m1 stop Newark
C$ 810United Airlines
Thu, 4 Feb - Wed, 10 Feb
Delta Logo
5:45 a.m. - 1:10 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
8h 25m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:35 p.m. - 12:58 a.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
9h 23m1 stop Atlanta Hartsfield-Jackson
C$ 810Delta
Mon, 1 Feb - Thu, 11 Feb
Delta Logo
8:15 p.m. - 1:10 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
17h 55m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:35 p.m. - 12:58 a.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
9h 23m1 stop Atlanta Hartsfield-Jackson
C$ 810Delta
Fri, 26 Feb - Sun, 7 Mar
Avianca Logo
3:40 p.m. - 8:15 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
5h 35mdirect
Avianca Logo
7:45 a.m. - 1:45 p.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
5h 00mdirect
C$ 936Avianca
Fri, 26 Feb - Mon, 8 Mar
Avianca Logo
9:50 a.m. - 8:00 p.m.BOS  Boston Logan Intl-SAL San Salvador El Salvador Intl
11h 10m1 stop Washington, D.C. Dulles Intl
Avianca Logo
7:45 a.m. - 1:45 p.m.SAL  San Salvador El Salvador Intl-BOS Boston Logan Intl
5h 00mdirect
C$ 1,478Avianca
Booking Insights

Price, demand, and travel trends for Boston to San Salvador flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Boston to San Salvador with more confidence.

How much is a round-trip flight from Boston to San Salvador?

Round-trip flights from Boston to San Salvador start at C$ 810. Prices are typical for this route right now, with typical round-trip fares ranging from C$ 615 to C$ 992. The lowest price found in the past 5 days was C$ 810 on United Airlines.

What's the cheapest day of the week to fly from Boston to San Salvador?

Sunday is the cheapest day of the week to fly from Boston to San Salvador and is 5% cheaper than the average day. Tuesday is the most expensive day with flight prices 4% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Boston to San Salvador?

•January is the cheapest month to fly from Boston to San Salvador at C$ 616 round-trip.
•December (C$ 1,143) and July (C$ 919) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 85% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Boston to San Salvador the cheapest?

Flights from Boston to San Salvador are cheapest 21 weeks before departure. Booking in this window typically costs about 25% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Boston to San Salvador flights

Low season

September

Cheapest flight

C$ 477
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flights from Boston to San Salvador

When to book flights from Boston to San Salvador

Are your dates flexible? Find out the best times to travel from Boston to San Salvador based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to San Salvador flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What are the earliest and latest flights from Boston to San Salvador?

    These are the earliest and latest flight times available from Boston to San Salvador:

    • Earliest: departs at 3:40 pm and lands at 9:13 pm
    • Latest: departs at 4:50 pm and lands at 10:23 pm.

    The flight takes about 5h 33m.

  • Which cabin classes can I book on flights from Boston to San Salvador?

    Only Economy Class is available on flights from Boston to San Salvador.

  • How long does a flight from Boston to San Salvador take?

    A direct flight from Boston to San Salvador takes 5h 33m, covering 5,877 km.

  • Do I need a passport to fly from Boston to San Salvador?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to San Salvador flight?

    Round-trip flights from Boston to San Salvador range from C$ 615 to C$ 992, with an average of C$ 798 over the past 12 months. Anything below C$ 615 counts as a good deal.

  • How expensive are last-minute Boston to San Salvador flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 5% above the route average of C$ 798. Book 21 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Boston to San Salvador?

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 715 round-trip via Fort Lauderdale (FLL), compared to C$ 793 for direct.

  • What is the standard checked bag allowance on flights from Boston to San Salvador?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 106–C$ 142 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Boston to San Salvador?

    The Airbus A320neo family is used most often on this route, operated mainly by Avianca. Other aircraft seen on the route include Airbus A320-100/200 variants.

  • How are flight departures from Boston to San Salvador spread across the day?

    Afternoon is the busiest departure period on Boston to San Salvador flights, with 100% leaving in that window. Morning departures account for 0%, Evening flights for 0%, and Night flights for 0%.

  • Have flight prices from Boston to San Salvador changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 810 to C$ 2,405. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from Boston to San Salvador looking right now?

    One-way fares from Boston to San Salvador are currently higher than usual. Average one-way flight prices are about C$ 522, which is 21% above the typical average for this route.

  • What car rental options are available at San Salvador El Salvador Intl Airport (SAL)?

    San Salvador El Salvador Intl Airport (SAL) hosts 5 major car rental companies, with daily rates starting from around C$ 11 for economy cars. Top options include:
    • Budget
    • Europcar
    • Hertz
    • Sixt
    • Avis

  • Which airports can I use when flying from Boston to San Salvador?

    Flights from Boston to San Salvador usually depart from Boston Logan Intl (BOS) and arrive at San Salvador El Salvador Intl (SAL).

  • How do delay rates compare for morning and evening flights from Boston to San Salvador?

    Afternoon flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • At what point is a flight considered delayed on the route from Boston to San Salvador?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Boston to San Salvador route, 16% of flights were delayed in the past 3 months, with delays averaging 2 hours 11 minutes.

  • Which airports do connecting flights from Boston to San Salvador pass through?

    One-stop flights from Boston to San Salvador most commonly connect through:

    • Miami (MIA) – 38% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) – 28% of one-stop connections
    • Panama City Tocumen Intl (PTY) – 18% of one-stop connections
    • Houston George Bush Intcntl (IAH) – 6% of one-stop connections

    Miami (MIA) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Boston to San Salvador?

    On the Boston to San Salvador route, being flexible with your departure day can save you up to 9%. Sunday is the cheapest day at C$ 760 round-trip on average, while Tuesday is the most expensive at C$ 834 – a C$ 74 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • Which airlines are available on the route from Boston to San Salvador?

    Only Avianca operates flights between Boston and San Salvador.

  • How much time can I save by choosing a different layover airport when travelling from Boston to San Salvador?

    Flying via Washington, D.C. Dulles Intl (IAD) gives the shortest average 1-stop total travel time at 8h 32m, compared with 8h 37m via Cancun (CUN) and 8h 38m via Miami (MIA).

  • What is the time difference between Boston and San Salvador?

    San Salvador is 2 hours behind Boston (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which airlines offer extra legroom and free seat selection on Boston to San Salvador flights?

    Among airlines operating Boston to San Salvador flights:

    • Avianca: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Boston to San Salvador flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Avianca: a carry-on bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Your guide to booking Boston to San Salvador flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure instead of Tuesday. On this route, Sunday flights average C$ 760 – about C$ 74 less than Tuesday (9% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 25% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to San Salvador trip for January. Fares historically average C$ 616 round-trip in that month – typically C$ 528 less than the most expensive month, which is December (based on the last 12 months).
  • If arriving on time is high on your priority list, Avianca is the strongest pick on this route. 86% of Avianca flights from Boston to San Salvador arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 84%. When flights on this route do arrive late, the average delay is 2 hours11 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Fort Lauderdale Airport (FLL) can be cheaper than flying direct. The cheapest layover option averages C$ 715 round-trip on this route – about C$ 78 less than direct flights (based on the last 12 months).

Prefer to fly direct from Boston to San Salvador?

 
Find which airlines fly direct from Boston Logan Intl Airport to San Salvador El Salvador Intl Airport, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to San Salvador El Salvador Intl

Monday

Avianca

Avianca

Wednesday

Avianca

Avianca

Friday

Avianca

Avianca

Sunday

Avianca

Avianca

See more nonstop flights

Direct returns

San Salvador El Salvador Intl to Boston Logan Intl

Monday

Avianca

Avianca

Wednesday

Avianca

Avianca

Friday

Avianca

Avianca

Sunday

Avianca

Avianca

See more nonstop flights

More options for your flight from Boston to San Salvador

Complete your trip to San Salvador with a hotel stay or car rental