What is the cheapest airline to fly from Boston to Espargos round-trip?

TAP AIR PORTUGAL, at $751, was found to be the cheapest airline from Boston to Espargos.. Users have found that TAP AIR PORTUGAL is 26% cheaper than the other options available to this destination.

What is the cheapest day to fly from Boston to Espargos?

Travelers seeking maximum savings on their Boston to Espargos flight should consider departing on Monday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Boston to Espargos?

Sunday is generally a great day to depart. Flying on this day could help you save up to 38%.

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

To save on the cost of your flight from Boston to Espargos, book at least 44 days before your planned departure. Booking around this time can save you about 15% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $781 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $819.

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

The best pricing can be found in the month of November. Prices to Espargos from Boston average $1,027. You can even find prices in November for less than $1,027, as users have found deals to Espargos from as low as $712. The month of July appears to be one of the more expensive times to travel to Espargos from Boston. Flying in the targeted month can save you up to 21%.

Can I find deals for flights from Boston to Espargos that include hotel bookings?

Yes. In addition to deals on Boston to Espargos flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Boston to Espargos?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Espargos.

Can I find deals for business class flights from Boston to Espargos?

Yes. Cheapflights offers flight deals from Boston to Espargos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$751+ Flights from Boston to Espargos

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Boston Logan Intl to Espargos Amilcar Cabral Intl are usually found in November or March, booked 44 days in advance, depart on a Monday or Saturday and return on a Monday

Cheap flight deals from Boston to Espargos

Round-trip from	$751 (TAP AIR PORTUGAL)
Popular in	July
Cheapest in	November
Average price	$1,249

From Boston Logan Intl to Espargos Amilcar Cabral Intl

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($128 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($20 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Boston to Espargos

Cheapest flights from Boston to Espargos
Explore the most affordable flight options available from Boston to Espargos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Wed 9/310:40 pmBOS - SID

1 stop21h 35mTAP AIR PORTUGAL

Fri 9/1912:45 pmSID - BOS

1 stop28h 35mTAP AIR PORTUGAL

Deal found 7/1

$751

Best flights from Boston to Espargos
Discover carefully curated flight deals from Boston to Espargos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Wed 9/310:40 pmBOS - SID

1 stop21h 35mTAP AIR PORTUGAL

Fri 9/1912:45 pmSID - BOS

1 stop28h 35mTAP AIR PORTUGAL

Deal found 7/1

$751

Sun 9/2811:00 pmBOS - SID

2 stops31h 10mMultiple Airlines

Sat 10/259:05 amSID - BOS

1 stop14h 00mMultiple Airlines

Deal found 7/2

$1,171

Last-minute flights from Boston to Espargos
Discover last-minute flight deals from Boston to Espargos. Data last updated July 3, 2025 and is based on user searches.

Thu 7/1710:25 pmBOS - SID

1 stop21h 50mTAP AIR PORTUGAL

Fri 8/812:45 pmSID - BOS

1 stop34h 20mTAP AIR PORTUGAL

Deal found 7/1

$925

Sun 8/178:50 pmBOS - SID

3 stops23h 25mMultiple Airlines

Sun 8/246:35 pmSID - BOS

2 stops28h 30mMultiple Airlines

Deal found 7/3

$1,592

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Espargos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonEspargos

BOS - SID

BOSSID

Boston Logan Intl

Wed 9/3

10:40 pm-11:15 pm

1 stop21h 35m

Espargos Amilcar Cabral Intl

Fri 9/19

12:45 pm-2:20 pm

1 stop28h 35m

$751

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Boston to Espargos

Have a flexible travel schedule? Discover the best time to fly to Espargos from Boston with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Espargos

How far ahead should I book a flight from Boston to Espargos?

Booking 43 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Espargos. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest time of day to fly from BOS to SID?

Unlike in the morning, when flights are generally more expensive, you can save up to 8% on flights from Boston to Espargos by exploring options for tickets at noon.

Reviews of airlines servicing Espargos

Read reviews from past customers who have flown TAP AIR PORTUGAL from Boston to Espargos. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

TAP AIR PORTUGAL

7.1

Good

1,912 reviews

Reviews

1 / 20

2.0

Mediocre

Paul,Jun 2025

MIA - LIS

The flight on 2 June was cancelled and all I heard was to pick up bags and return next day. I did not hear or was sent a text message on hotel accommodation that other passengers received.

TAP AIR PORTUGAL

7.1

Good

1,912 reviews

TAP AIR PORTUGAL

7.1

Good

1,912 reviews

Reviews

1 / 20

2.0

Mediocre

Paul,Jun 2025

MIA - LIS

The flight on 2 June was cancelled and all I heard was to pick up bags and return next day. I did not hear or was sent a text message on hotel accommodation that other passengers received.

Related info for your journey

What is the cheapest airline to fly from Boston to Espargos round-trip?
TAP AIR PORTUGAL, at $751, was found to be the cheapest airline from Boston to Espargos.. Users have found that TAP AIR PORTUGAL is 26% cheaper than the other options available to this destination.
Can I find deals for flights from Boston to Espargos that include hotel bookings?
Yes. In addition to deals on Boston to Espargos flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston to Espargos?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Espargos.
Can I find deals for business class flights from Boston to Espargos?
Yes. Cheapflights offers flight deals from Boston to Espargos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Other flights to Espargos

Espargos to Lisbon flights

Top airline flying from Boston to Espargos

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$781	Average$1,127	FlexibilityNo cancel fee	On-timeN/A

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$751+ Cheap flights from Boston (BOS) to Espargos (SID)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Espargos with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Boston Logan Intl to Espargos Amilcar Cabral Intl are usually found in November or March, booked 44 days in advance, depart on a Monday or Saturday and return on a Monday

Cheap flight deals from Boston to Espargos

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Boston to Espargos

Cheapest flights from Boston to EspargosExplore the most affordable flight options available from Boston to Espargos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Boston to Espargos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Espargos that are best for you.

Best time to book a flight from Boston to Espargos

Have a flexible travel schedule? Discover the best time to fly to Espargos from Boston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boston to Espargos

How far ahead should I book a flight from Boston to Espargos?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Espargos. Price data was last updated on June 27, 2025.

What is the cheapest time of day to fly from BOS to SID?

Find hourly flight availability from Boston to Espargos. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing Espargos

Read reviews from past customers who have flown TAP AIR PORTUGAL from Boston to Espargos. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston to Espargos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Boston to Espargos round-trip?

Can I find deals for flights from Boston to Espargos that include hotel bookings?

How can I find direct flights from Boston to Espargos?

Can I find deals for business class flights from Boston to Espargos?

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Espargos

Explore flights to Espargos departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 3, 2025.

Top airline flying from Boston to Espargos

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Boston to Espargos
Explore the most affordable flight options available from Boston to Espargos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.