BOS - SID

$391 Find Cheap Flights from Boston to Espargos - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$897
Typical prices: $1,036-$1,375
Multiple Airlines
Wed 2/21Wed 2/28
BOS - SID • 1 stop
When to travel
February
Cheapest • 30% price drop
April
Most popular
Good to know
+1
Good to know
+1
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Cheap Flights from Boston to Espargos (BOS-SID)

 

Cheap flights from Boston to Espargos with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Sun, Feb 21 - Sun, Feb 28
Multiple Airlines Logo
10:50 pm - 5:10 pmBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
14h 20m1 stop Porto
Multiple Airlines Logo
5:40 pm - 3:05 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
25h 25m2 stops Porto Lisbon Humberto Delgado
$897Multiple Airlines
Sun, Nov 29 - Sat, Dec 5
Multiple Airlines Logo
5:15 pm - 4:05 pmBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
18h 50m2 stops Dublin London Gatwick
Multiple Airlines Logo
12:30 am - 8:00 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
23h 30m1 stop Praia Nelson Mandela
$908Multiple Airlines
Sun, Nov 29 - Sat, Dec 5
Multiple Airlines Logo
5:15 pm - 12:05 amBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
26h 50m3 stops Dublin Porto Lisbon Humberto Delgado
Multiple Airlines Logo
12:30 am - 8:00 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
23h 30m1 stop Praia Nelson Mandela
$909Multiple Airlines
Sun, Nov 29 - Sun, Dec 6
Multiple Airlines Logo
9:20 pm - 12:05 amBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
22h 45m3 stops Dublin Porto Lisbon Humberto Delgado
Multiple Airlines Logo
7:00 pm - 3:05 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
24h 05m2 stops Praia Nelson Mandela Lisbon Humberto Delgado
$917Multiple Airlines
Thu, Dec 3 - Wed, Dec 9
TAP AIR PORTUGAL Logo
6:00 pm - 12:30 pmBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
14h 30m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
1:05 am - 3:05 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
18h 00m1 stop Lisbon Humberto Delgado
$934TAP AIR PORTUGAL
Sun, Feb 21 - Sun, Feb 28
Multiple Airlines Logo
10:50 pm - 5:10 pmBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
14h 20m1 stop Porto
Multiple Airlines Logo
1:10 am - 7:55 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
22h 45m2 stops Porto Lisbon Humberto Delgado
$934Multiple Airlines
Fri, Feb 19 - Mon, Mar 1
Multiple Airlines Logo
5:15 pm - 4:50 pmBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
19h 35m2 stops Dublin Lisbon Humberto Delgado
Multiple Airlines Logo
5:55 pm - 8:30 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
30h 35m1 stop Porto
$934Multiple Airlines
Sun, Feb 7 - Tue, Feb 16
TAP AIR PORTUGAL Logo
10:10 pm - 12:05 amBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
21h 55m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
1:05 am - 2:40 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
17h 35m1 stop Lisbon Humberto Delgado
$943TAP AIR PORTUGAL
Sat, Oct 31 - Sat, Nov 21
TAP AIR PORTUGAL Logo
11:10 pm - 12:05 amBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
21h 55m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
1:05 am - 7:55 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
22h 50m1 stop Lisbon Humberto Delgado
$950TAP AIR PORTUGAL
Sun, Feb 7 - Wed, Feb 17
Multiple Airlines Logo
5:15 pm - 12:05 amBOS  Boston Logan Intl-SID Espargos Amilcar Cabral Intl
26h 50m2 stops Dublin Lisbon Humberto Delgado
Multiple Airlines Logo
1:30 pm - 8:00 pmSID  Espargos Amilcar Cabral Intl-BOS Boston Logan Intl
34h 30m2 stops Lisbon Humberto Delgado Ponta Delgada Nordela
$955Multiple Airlines

Price, demand and travel trends for Boston to Espargos flights

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

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Boston to Espargos. It’s 16% cheaper than the average day, while Wednesday is the most expensive, with prices 25% higher.

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Key details for Boston to Espargos flights

Low season

November

Cheapest flight

$897
Beat the crowds with an average 67% drop in travelers.
The most popular month to fly with an average 38% increase in travelers.
Round-trip flight from Boston to Espargos

When to book flights from Boston to Espargos

Are your dates flexible? Find out the best times to travel from Boston to Espargos 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 Espargos flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Boston to Espargos?

    Only Economy Class is available on flights from Boston to Espargos.

  • Do I need a passport to fly from Boston to Espargos?

    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 Espargos flight?

    Round-trip flights from Boston to Espargos range from $1,036 to $1,375, with an average of $1,251 over the past 12 months. Anything below $1,036 counts as a good deal.

  • Have flight prices from Boston to Espargos 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 $897 to $8,164. That means the highest observed fare was about 9x higher than the lowest one.

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

    Flights from Boston to Espargos usually depart from Boston Logan Intl (BOS) and arrive at Espargos Amilcar Cabral Intl (SID).

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

    Most connecting flights from Boston to Espargos pass through Lisbon Humberto Delgado (LIS), which handles 100% of one-stop traffic on this route.

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

    Yes. Flexible dates can save you up to 33% on flights from Boston to Espargos. Tuesday is the cheapest departure day at $1,057 round-trip on average, while Wednesday is the most expensive at $1,576, a difference of $519.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Boston and Espargos?

    Espargos is 3 hours ahead of Boston (Cape Verde Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Boston to Espargos 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 Tuesday departure and avoid flying on Wednesday. On this route, Tuesday flights average $1,057, about $519 less than Wednesday fares (33% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boston to Espargos trip for February. Fares historically average $875 round-trip in that month - typically $1,018 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Espargos Amilcar Cabral Intl Airport.

    • Atlantico

More options for your flight from Boston to Espargos

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