$750 Find Cheap Flights from Boston to Sal

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Sal departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sal, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sal, as well as popular online travel agencies
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Best Sal Flight Deals from Boston

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Espargos
Espargos1 stop$750
Espargos
Espargos1 stop$750

Cheap Flights from Boston to Sal

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Sal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Sal

Wed, Sep 3 - Tue, Sep 16
TAP AIR PORTUGAL Logo
10:40 pm - 11:15 pmBOS-SID
21h 35m1 stop
TAP AIR PORTUGAL Logo
12:15 am - 2:20 pmSID-BOS
17h 05m1 stop
$750TAP AIR PORTUGAL
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Mon, Aug 25 - Sun, Sep 7
TAP AIR PORTUGAL Logo
6:10 pm - 11:15 pmBOS-SID
26h 05m1 stop
TAP AIR PORTUGAL Logo
12:15 am - 8:05 pmSID-BOS
22h 50m1 stop
$832TAP AIR PORTUGAL
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Wed, Sep 3 - Tue, Sep 16
TAP AIR PORTUGAL Logo
10:40 pm - 11:15 pmBOS-SID
21h 35m1 stop
TAP AIR PORTUGAL Logo
12:15 am - 8:45 pmSID-BOS
23h 30m2 stops
$939TAP AIR PORTUGAL
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Wed, Sep 3 - Fri, Sep 19
TAP AIR PORTUGAL Logo
11:05 pm - 11:15 pmBOS-SID
21h 10m2 stops
TAP AIR PORTUGAL Logo
12:45 pm - 2:20 pmSID-BOS
28h 35m1 stop
$941TAP AIR PORTUGAL
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Tue, Nov 25 - Tue, Dec 9
SWISS Logo
9:55 pm - 12:05 amBOS-SID
22h 10m2 stops
SWISS Logo
11:35 am - 8:20 pmSID-BOS
36h 45m2 stops
$1,250SWISS
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Tue, Nov 25 - Tue, Dec 9
Lufthansa Logo
8:40 pm - 9:30 pmBOS-SID
44h 50m2 stops
Lufthansa Logo
11:35 am - 6:35 pmSID-BOS
35h 00m3 stops
$1,256Lufthansa
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Tue, Nov 25 - Tue, Dec 9
SWISS Logo
9:55 pm - 12:05 amBOS-SID
22h 10m2 stops
SWISS Logo
11:35 am - 8:20 pmSID-BOS
36h 45m2 stops
$1,265SWISS
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Mon, Jul 21 - Mon, Jul 28
Logo
10:40 pm - 11:15 pmBOS-SID
21h 35m1 stop
Logo
3:05 pm - 8:37 amSID-BOS
44h 32m3 stops
$1,380
Find Deal
Mon, Jul 21 - Mon, Jul 28
Logo
10:40 pm - 11:15 pmBOS-SID
21h 35m1 stop
Logo
9:55 am - 8:45 pmSID-BOS
13h 50m1 stop
$1,470
Find Deal
Sun, Jul 20 - Mon, Jul 28
Lufthansa Logo
8:05 pm - 11:15 pmBOS-SID
24h 10m2 stops
Lufthansa Logo
12:15 am - 5:40 pmSID-BOS
20h 25m2 stops
$2,392Lufthansa
Find Deal
Useful Info

KAYAK's insights & trends for Boston to Sal flights

Get data-powered insights and trends into flights from Boston to Sal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boston to Sal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Sal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Sal is November, when tickets cost $712 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $1,249 and $1,232 respectively.

How far in advance should I book a flight from Boston to Sal?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Sal, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Sal, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

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Good to know

Low seasonNovember
High seasonJuly
Cheapest flight$750
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Boston to Espargos

FAQs - booking Sal flights

  • How does KAYAK find such low prices on flights from Boston to Sal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Sal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Sal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Sal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Sal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Boston to Sal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Sal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boston to Sal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Sal?

    The cheapest time of day to fly to Sal is generally at night, when round-trip flights cost $1,106 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Sal is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,197.

Top airline flying from Boston to Sal

 
See real verified KAYAK customer reviews for airlines flying from Boston to Sal. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Sal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
TAP AIR PORTUGALOverall score based on 1892 reviews
7.1Comfort
6.3Entertainment
7.0Boarding
7.8Crew
6.2Food
Airline reviews

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

8.0 ExcellentMarc, Jun 2025LAX - LIS
Read more TAP AIR PORTUGAL reviews

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

I’ve never had worse food in business class ever!

Checked bG chstgr was extremely high. Over $120. It was s bsit and switch knowing an international passenger would have t9 check a bag.

First, communication was terrible. The gate on our ticket was not what was reflected on the airport screens and TAP personnel were not present at either gate to answer questions. The flight was delayed and there was no announcement. Also, there was an equipment swap to a smaller airframe which affected our level of comfort. The root of all these issues was as a lack of communication. With air travel in foreign countries already being a stressful affair, lack of communication needlessly raises the level of difficulty.

On time, politeness, food okay but entertneiment mediocre with only old movie and the so called new we’re 2 or 3…

Little leg room in business. I am tall and could use more.

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils. I'd originally booked to fly Business Class; those seats didn't look that great either.

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils.

First time and I enjoyed the trip…. Will fly again soon 🔜

Everything you need to know for your flight from Boston to Sal

Information on your arrival and departure airports

Boston (BOS)

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