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$292+ Cheap flights from Boston (BOS) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Boston to Portugal

Keep the following information in mind while searching for Boston to Portugal flight deals. Data was last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$485
(Kiwi.com)

One-way from

$292
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$838

Good round-trip deal

$593 or less

Good one-way deal

$271 or less
Provider with most accurate pricing for Boston Logan Intl-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Lisbon Humberto Delgado flights.
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From Boston Logan Intl to Portugal
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One-way flight from Boston Logan Intl to Portugal
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Highest demand for flights based on searches. 16% potential increase in price ($168 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Portugal.
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Price to beat on a one-way flight from Boston Logan Intl to Portugal.
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Find flight deals from Boston to Portugal

Cheapest flights from Boston to Portugal
Explore the most affordable flight options available from Boston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Expedia deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:20 pmBOS - FNC
1 stop14h 35mPLAY
Tue 11/182:55 pmFNC - BOS
1 stop31h 05mPLAY
Deal found 4/15$468
This Kiwi.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/167:15 pmBOS - FAO
1 stop20h 30mPLAY
Sat 5/249:45 pmFAO - BOS
1 stop25h 05mPLAY
Deal found 4/17$485
This Cheapflightsfares deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/57:25 amBOS - LIS
1 stop10h 45mMultiple Airlines
Mon 6/98:25 amLIS - BOS
1 stop11h 35mMultiple Airlines
Deal found 4/15$510
This oojo deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:40 pmBOS - TER
1 stop20h 35mTAP AIR PORTUGAL
Tue 10/147:05 amTER - BOS
1 stop17h 00mTAP AIR PORTUGAL
Deal found 4/16$515
This Iberia deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/611:00 pmBOS - LIS
1 stop13h 05mIberia
Wed 10/222:00 pmLIS - BOS
1 stop12h 15mIberia
Deal found 4/16$516
This Mytrip deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/157:15 pmBOS - FAO
3 stops32h 35mMultiple Airlines
Thu 5/2212:40 pmFAO - BOS
2 stops34h 10mMultiple Airlines
Deal found 4/15$531
This Gurufare deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/67:40 pmBOS - LIS
1 stop14h 55mBritish Airways
Fri 6/136:35 amLIS - BOS
1 stop18h 15mBritish Airways
Deal found 4/16$543
This Gotogate deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/289:15 pmBOS - TER
Nonstop5h 05mAzores Airlines
Tue 5/66:05 pmTER - BOS
Nonstop5h 45mAzores Airlines
Deal found 4/17$547
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/169:25 pmBOS - LIS
1 stop19h 10mAer Lingus
Wed 7/1610:15 pmLIS - BOS
1 stop21h 25mAer Lingus
Deal found 4/16$553
This Gotogate deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:15 pmBOS - PDL
Nonstop5h 05mAzores Airlines
Sat 10/256:05 pmPDL - BOS
Nonstop5h 45mAzores Airlines
Deal found 4/15$557
This oojo deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:40 pmBOS - PDL
1 stop10h 35mTAP AIR PORTUGAL
Mon 10/67:40 pmPDL - BOS
1 stop22h 40mTAP AIR PORTUGAL
Deal found 4/16$558
This Justfly.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:15 pmBOS - LIS
1 stop20h 05mPLAY
Mon 9/229:25 pmLIS - BOS
1 stop25h 25mPLAY
Deal found 4/17$559

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
Use the filters below to find and compare flights from Boston to Portugal that are best for you.

Fly from

Boston

Fly to

Portugal

Route

Depart

Return

Price

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Fri 5/2

7:15 pm-8:45 pm

1 stop20h 30m

Faro

Sat 5/17

9:45 pm-5:50 pm

1 stop25h 05m

$431

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Mon 5/5

7:15 pm-2:55 pm

1 stop14h 40m

Funchal Madeira

Tue 5/20

3:55 pm-5:50 pm

1 stop30h 55m

$486

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 6/5

7:25 am-11:10 pm

1 stop10h 45m

Lisbon Humberto Delgado

Mon 6/9

8:25 am-3:00 pm

1 stop11h 35m

$510

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Thu 5/15

7:15 pm-8:50 am

3 stops32h 35m

Faro

Thu 5/22

12:40 pm-5:50 pm

2 stops34h 10m

$531

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 6/6

7:40 pm-3:35 pm

1 stop14h 55m

Lisbon Humberto Delgado

Fri 6/13

6:35 am-7:50 pm

1 stop18h 15m

$543

BostonLajes

BOS - TER

BOSTER

Boston Logan Intl

Mon 4/28

9:15 pm-6:20 am

Nonstop5h 05m

Lajes

Tue 5/6

6:05 pm-7:50 pm

Nonstop5h 45m

$547

BostonLajes

BOS - TER

BOSTER

Boston Logan Intl

Mon 7/14

6:10 pm-11:15 pm

1 stop25h 05m

Lajes

Tue 10/21

7:05 am-8:05 pm

1 stop17h 00m

$549

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 6/16

9:25 pm-9:35 pm

1 stop19h 10m

Lisbon Humberto Delgado

Wed 7/16

10:15 pm-2:40 pm

1 stop21h 25m

$553

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 5/5

10:50 pm-9:25 pm

1 stop17h 35m

Lisbon Humberto Delgado

Tue 5/13

9:15 pm-9:05 pm

1 stop28h 50m

$571

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 5/28

10:50 pm-8:35 pm

1 stop16h 45m

Lisbon Humberto Delgado

Wed 9/10

2:00 pm-9:15 pm

1 stop12h 15m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 60 results
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Best time to book a flight from Boston to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

What is the cheapest month to book a flight from Boston to Portugal?

Currently, January is the cheapest month in which you can book a flight from Boston to Portugal (average of $612). Flying from Boston to Portugal in June is currently the most expensive (average of $1,203). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Boston to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 18% on flights from Boston to Portugal by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Portugal. Price data was last updated on November 3, 2024.

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

Weekly flight availability from Boston to Portugal

Explore weekly flight availability from Boston to Portugal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 17, 2025.

The most flights from BOS to PT0 are scheduled on a Monday (9 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated April 17, 2025.
Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Boston to Portugal. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
775 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Azores Airlines
7.5
Good
65 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What airport do you fly from for flights from Boston to Portugal?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Portugal from Boston.

  • How popular is this Boston to Portugal flight route?

    This flight path from Boston Logan Intl to Portugal was viewed by 243 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Boston to Portugal one-way?

    The cheapest airline one-way is Iberia, with whom users have recently found tickets for as low as $292. However, be on the lookout for offers from Vueling and TAP AIR PORTUGAL, as they are both options that can get you from Boston to Portugal for a low price.

  • What are the most popular routes from Boston to Portugal?

    While some choose either Boston Logan Intl - Ponta Delgada Nordela or Boston Logan Intl - Porto, Boston Logan Intl - Lisbon Humberto Delgado is the most popular route from Boston to Portugal.

  • What are the most reliable airlines from Boston to Portugal?

    No one likes to see their flight delayed. When booking a flight from Boston to Portugal consider choosing KLM (87%), Air France (87%) or Delta (87%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to Portugal?

    Looking for the cheapest flight from Boston to Portugal? While on average our users pay $1,676, our data indicates the cheapest price to be $244. The most popular route (Boston Logan Intl - Lisbon Humberto Delgado), is priced around $396.

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

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

  • How can I find direct flights from Boston to Portugal?

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

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

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

  • What is the cheapest month to book a flight from Boston to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Boston to Portugal (average of $612). Flying from Boston to Portugal in June is currently the most expensive (average of $1,203). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Boston to Portugal

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Top 10 airlines flying from Boston to Portugal

Discover the top 10 airlines that operate flights from Boston to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$260Average$668FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$323Average$668FlexibilityNo cancel feeOn-time77%
PLAYCheapest$332Average$513FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$445Average$647FlexibilityNo cancel feeOn-time88%
SWISSCheapest$487Average$744FlexibilityNo cancel feeOn-time79%
IberiaCheapest$514Average$731FlexibilityNo cancel feeOn-time77%
DeltaCheapest$515Average$889FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$517Average$737FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$519Average$781FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$524Average$950FlexibilityNo cancel feeOn-time70%

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