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$205+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$404
(FlightHub)

One-way from

$205
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$826

Good round-trip deal

$565 or less

Good one-way deal

$239 or less
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. 11% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/158:59 pmBOS - FAO
2 stops56h 01mScandinavian Airlines
Sun 11/2310:55 amFAO - BOS
2 stops33h 55mScandinavian Airlines
Deal found 9/11$404
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:40 amBOS - OPO
2 stops18h 50mUnited Airlines
Tue 12/166:00 amOPO - BOS
1 stop12h 25mUnited Airlines
Deal found 9/10$419
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:20 pmBOS - OPO
1 stop18h 05mUnited Airlines
Wed 11/1212:35 pmOPO - BOS
2 stops25h 55mUnited Airlines
Deal found 9/11$420
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/155:10 pmBOS - FAO
1 stop12h 20mAer Lingus
Sun 11/2311:10 amFAO - BOS
1 stop12h 45mAer Lingus
Deal found 9/11$420
This Booking.com deal was found by Cheapflights users on 9/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:05 pmBOS - OPO
1 stop22h 15mMultiple Airlines
Thu 11/2712:05 pmOPO - BOS
1 stop13h 15mMultiple Airlines
Deal found 9/9$421
This KAYAK deal was found by Cheapflights users on 9/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:40 pmBOS - OPO
1 stop22h 00mLufthansa
Mon 11/104:15 pmOPO - BOS
1 stop26h 10mLufthansa
Deal found 9/10$422
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Tue 10/145:50 pmBOS - OPO
1 stop12h 25mMultiple Airlines
Wed 10/2212:20 pmOPO - BOS
1 stop12h 35mMultiple Airlines
Deal found 9/10$423
This KAYAK deal was found by Cheapflights users on 9/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:50 pmBOS - OPO
1 stop14h 50mSWISS
Fri 11/1412:50 pmOPO - BOS
1 stop12h 30mSWISS
Deal found 9/9$424
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/3010:50 pmBOS - OPO
1 stop14h 50mMultiple Airlines
Sun 11/96:15 amOPO - BOS
1 stop17h 20mMultiple Airlines
Deal found 9/10$425
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/28:40 pmBOS - OPO
1 stop11h 10mLufthansa
Thu 11/136:00 amOPO - BOS
2 stops17h 35mLufthansa
Deal found 9/11$426
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Tue 10/149:40 pmBOS - OPO
2 stops16h 25mSWISS
Tue 10/218:40 amOPO - BOS
1 stop16h 15mSWISS
Deal found 9/10$427
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/215:30 amBOS - OPO
2 stops20h 25mUnited Airlines
Wed 11/126:00 amOPO - BOS
1 stop12h 25mUnited Airlines
Deal found 9/9$428

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 September 11, 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

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Fri 11/28

12:25 pm-9:30 am

2 stops16h 05m

Porto

Wed 12/17

6:00 am-1:25 pm

1 stop12h 25m

$419

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 2/9

4:15 pm-11:40 am

1 stop14h 25m

Porto

Thu 2/26

12:35 pm-9:24 am

2 stops25h 49m

$420

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 2/11

4:15 pm-3:25 pm

1 stop18h 10m

Porto

Thu 2/26

12:35 pm-11:54 pm

2 stops16h 19m

$420

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 10/27

5:30 am-9:30 am

2 stops24h 00m

Porto

Mon 11/3

12:35 pm-10:34 am

2 stops26h 59m

$428

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 11/11

2:21 pm-9:30 am

2 stops14h 09m

Porto

Sat 11/22

12:35 pm-12:45 am

2 stops17h 10m

$428

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 10/7

8:05 pm-11:20 pm

1 stop22h 15m

Porto

Wed 11/19

12:10 pm-8:20 pm

1 stop13h 10m

$429

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Fri 12/5

7:30 am-3:20 pm

2 stops26h 50m

Funchal Madeira

Sat 12/13

4:10 pm-3:50 pm

1 stop28h 40m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 10/7

7:40 pm-7:30 pm

1 stop18h 50m

Porto

Wed 11/19

12:25 pm-10:47 pm

2 stops15h 22m

$431

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Thu 10/30

10:20 pm-5:30 pm

1 stop15h 10m

Faro

Sat 11/15

11:10 am-6:55 pm

1 stop12h 45m

$434

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 11/9

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sat 11/15

12:30 pm-1:25 pm

1 stop29h 55m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 $1,127). 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 September 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 3% on flights from Boston to Portugal by exploring options for tickets at noon.

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 Friday 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 September 11, 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).

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 September 11, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Azores Airlines from Boston to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,385 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Azores Airlines
7.5
Good
73 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.4
Good
1,469 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
TAP AIR PORTUGAL
7.1
Good
1,977 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 208 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Boston to Portugal?

    There are many flights that can get you from Boston to Portugal in 15h 10m. Fly via United Airlines, Scandinavian Airlines, or Aer Lingus to get the fastest option. Boston and Portugal are separated by a distance of 3293 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $239. However, be on the lookout for offers from Azores Airlines and LEVEL, 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 JetBlue (64%), TAP AIR PORTUGAL (64%) or Emirates (61%) 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 $1,268, our data indicates the cheapest price to be $172. The most popular route (Boston Logan Intl - Lisbon Humberto Delgado), is priced around $406.

  • 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 $1,127). 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.

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Alternative routes for Boston to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$165Average$603FlexibilityNo cancel feeOn-time88%
LEVELCheapest$226Average$516FlexibilityNo cancel feeOn-timeN/A
PLAYCheapest$333Average$382FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$338Average$632FlexibilityNo cancel feeOn-time79%
IberiaCheapest$358Average$618FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$374Average$688FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$381Average$569FlexibilityNo cancel feeOn-time77%
KLMCheapest$394Average$719FlexibilityNo cancel feeOn-time75%
IcelandairCheapest$439Average$614FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$443Average$772FlexibilityNo cancel feeOn-time69%

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