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Cheap flights from Boston to Portugal from $222

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Portugal departing on 10/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to Portugal

Cheap round-trip flights

Scandinavian Airlines Logo
5:40 pm - 6:40 pmBOS-FNC
20h 00m1 stop
Scandinavian Airlines Logo
5:40 pm - 4:50 pmFNC-BOS
28h 10m1 stop
$415Scandinavian Airlines
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Fri, Oct 10 - Sat, Oct 25
Scandinavian Airlines Logo
5:40 pm - 6:40 pmBOS-FNC
20h 00m1 stop
Scandinavian Airlines Logo
5:40 pm - 4:50 pmFNC-BOS
28h 10m1 stop
$421Scandinavian Airlines
Find Deal
Fri, Oct 10 - Sat, Oct 25
TAP AIR PORTUGAL Logo
10:55 pm - 10:35 amBOS-OPO
6h 40mnonstop
TAP AIR PORTUGAL Logo
10:30 pm - 8:05 pmOPO-BOS
26h 35m1 stop
$442TAP AIR PORTUGAL
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Sun, Sep 14 - Sun, Sep 21
TAP AIR PORTUGAL Logo
10:55 pm - 10:35 amBOS-OPO
6h 40mnonstop
TAP AIR PORTUGAL Logo
5:55 pm - 3:35 pmOPO-BOS
25h 40m1 stop
$444TAP AIR PORTUGAL
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Sun, Sep 14 - Mon, Oct 27
Delta Logo
9:40 pm - 8:00 amBOS-LIS
6h 20mnonstop
Delta Logo
12:45 pm - 3:10 pmLIS-BOS
7h 25mnonstop
$532Delta
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Thu, Oct 30 - Tue, Mar 31
Delta Logo
9:40 pm - 8:00 amBOS-LIS
6h 20mnonstop
Delta Logo
10:00 am - 6:23 pmLIS-BOS
13h 23m1 stop
$542Delta
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Thu, Oct 30 - Tue, Mar 31
KLM Logo
7:10 pm - 9:20 amBOS-FNC
33h 10m1 stop
KLM Logo
6:40 pm - 1:25 pmFNC-BOS
23h 45m1 stop
$577KLM
Find Deal
Fri, Feb 6 - Sat, Feb 21
Azores Airlines Logo
9:20 pm - 6:15 amBOS-PDL
4h 55mnonstop
Azores Airlines Logo
5:55 pm - 8:05 pmPDL-BOS
6h 10mnonstop
$579Azores Airlines
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Tue, Feb 10 - Mon, Feb 16
Azores Airlines Logo
9:20 pm - 6:15 amBOS-PDL
4h 55mnonstop
Azores Airlines Logo
5:55 pm - 8:05 pmPDL-BOS
6h 10mnonstop
$597Azores Airlines
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Sat, Nov 8 - Sat, Nov 15
KLM Logo
8:15 pm - 7:30 pmBOS-FAO
18h 15m1 stop
KLM Logo
10:00 am - 1:40 pmFAO-BOS
32h 40m1 stop
$615KLM
Find Deal
Wed, Oct 1 - Tue, Oct 7

Delta flights from Boston to Portugal

Our best Delta deals on Boston to Portugal flight tickets
Delta
Oct 30
BOS9:40 pmBoston Logan Intl
6h 20m
LIS8:00 amLisbon Humberto Delgado
Mar 31
LIS12:45 pmLisbon Humberto Delgado
7h 25m
BOS3:10 pmBoston Logan Intl
$532
Find similar
Delta
Oct 30
BOS9:40 pmBoston Logan Intl
6h 20m
LIS8:00 amLisbon Humberto Delgado
Mar 31
LIS10:00 amLisbon Humberto Delgado
13h 23m
1 stop
BOS6:23 pmBoston Logan Intl
$542
Find similar
Delta
Oct 21
BOS11:25 pmBoston Logan Intl
6h 20m
LIS10:45 amLisbon Humberto Delgado
Nov 2
LIS5:00 amLisbon Humberto Delgado
13h 20m
1 stop
BOS2:20 pmBoston Logan Intl
$545
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Lufthansa flights from Boston to Portugal

Our best Lufthansa deals on Boston to Portugal flight tickets
Lufthansa
Aug 27
BOS8:05 pmBoston Logan Intl
22h 15m
1 stop
OPO11:20 pmPorto
Sep 10
OPO6:15 amPorto
16h 25m
1 stop
BOS5:40 pmBoston Logan Intl
$464
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Lufthansa
Aug 27
BOS8:05 pmBoston Logan Intl
22h 15m
1 stop
OPO11:20 pmPorto
Sep 5
OPO6:15 amPorto
16h 25m
1 stop
BOS5:40 pmBoston Logan Intl
$465
Find similar
Lufthansa
Aug 27
BOS8:05 pmBoston Logan Intl
22h 15m
1 stop
OPO11:20 pmPorto
Sep 10
OPO6:15 amPorto
18h 55m
2 stops
BOS8:10 pmBoston Logan Intl
$493
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momondo 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, momondo users made 832,500 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Boston to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Fri 10/10

5:40 pm-6:40 pm

1 stop20h 00m

Funchal Madeira

Sat 10/25

5:40 pm-4:50 pm

1 stop28h 10m

$415

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Fri 10/10

5:40 pm-6:40 pm

1 stop20h 00m

Funchal Madeira

Sat 10/25

5:40 pm-4:50 pm

1 stop28h 10m

$421

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 9/14

10:55 pm-10:35 am

Nonstop6h 40m

Porto

Sun 9/21

10:30 pm-8:05 pm

1 stop26h 35m

$442

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 9/14

10:55 pm-10:35 am

Nonstop6h 40m

Porto

Mon 10/27

5:55 pm-3:35 pm

1 stop25h 40m

$444

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 10/30

9:40 pm-8:00 am

Nonstop6h 20m

Lisbon Humberto Delgado

Tue 3/31

12:45 pm-3:10 pm

Nonstop7h 25m

$532

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 10/30

9:40 pm-8:00 am

Nonstop6h 20m

Lisbon Humberto Delgado

Tue 3/31

10:00 am-6:23 pm

1 stop13h 23m

$542

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Fri 2/6

7:10 pm-9:20 am

1 stop33h 10m

Funchal Madeira

Sat 2/21

6:40 pm-1:25 pm

1 stop23h 45m

$577

BostonPonta Delgada

BOS - PDL

BOSPDL

Boston Logan Intl

Tue 2/10

9:20 pm-6:15 am

Nonstop4h 55m

Ponta Delgada Nordela

Mon 2/16

5:55 pm-8:05 pm

Nonstop6h 10m

$579

BostonPonta Delgada

BOS - PDL

BOSPDL

Boston Logan Intl

Sat 11/8

9:20 pm-6:15 am

Nonstop4h 55m

Ponta Delgada Nordela

Sat 11/15

5:55 pm-8:05 pm

Nonstop6h 10m

$597

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Wed 10/1

8:15 pm-7:30 pm

1 stop18h 15m

Faro

Tue 10/7

10:00 am-1:40 pm

1 stop32h 40m

$615

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Boston to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Boston is in January. Flight prices, which tend to average around $650, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Boston during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $650.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Wednesday is the cheapest day to fly to Portugal from Boston. The lowest ticket price found for a Wednesday departure recently was $800. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $875.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from Boston to Portugal during this time can be as low as $351. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $834 per ticket.

What is the cheapest Boston Logan Intl to Portugal flight route?

Fly from Boston Logan Intl to Lisbon Humberto Delgado for the best Boston Logan Intl - Portugal flight prices

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $796 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Boston for as low as $714 on momondo.

What cabin class options are available on Boston Logan Intl to Portugal flights?

There are 3 cabin classes available to choose from on Boston Logan Intl to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Portugal flights?

No. A direct flight is the cheapest option for a flight between Boston to Portugal.

Cheap Boston to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Portugal

Best Price Found

$222

Fastest flight time

4h 55m

Direct flights

Every day

Airports in Portugal

9 airports
The best one-way flight to Portugal from Boston in the past 72 hours is $222. The best round-trip flight deal from Boston to Portugal found on momondo in the last 72 hours is $415.
The fastest flight from Boston to Portugal takes 4h 55m
Direct flights go from Boston to Portugal every day.
There are 9 airports near Portugal: Lajes (TER), Velas Sao Jorge Island (SJZ), Faro (FAO), Vila do Porto Santa Maria (SMA), Lisbon Humberto Delgado (LIS), Ponta Delgada Nordela (PDL), Funchal Madeira (FNC), Pico Island (PIX), Porto (OPO)
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  • When did momondo last update prices for flights from Boston Logan Intl Airport to Portugal?

    Prices for flights from Boston Logan Intl Airport to Portugal were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Portugal?

  • How old do you have to be to fly from Boston Logan Intl Airport to Portugal?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Boston to Portugal?

Best airlines flying from Boston to Portugal

Compare and see reviews for airlines that fly from Boston to Portugal with momondo
Airline
Rating
Free Cancellation
Price
VuelingPriceFrom $165Free CancellationRating
7.1
1,179 reviews
Search Vueling flights
LEVELPriceFrom $223Free CancellationRating
4.0
4 reviews
Search LEVEL flights
Scandinavian AirlinesPriceFrom $323Free CancellationRating
7.4
1,470 reviews
Search Scandinavian Airlines flights
PLAYPriceFrom $333Free CancellationRating
7.0
103 reviews
Search PLAY flights
SWISSPriceFrom $338Free CancellationRating
7.6
1,699 reviews
Search SWISS flights
IberiaPriceFrom $353Free CancellationRating
7.0
2,884 reviews
Search Iberia flights
IcelandairPriceFrom $386Free CancellationRating
7.0
527 reviews
Search Icelandair flights
KLMPriceFrom $394Free CancellationRating
7.8
1,385 reviews
Search KLM flights
British AirwaysPriceFrom $441Free CancellationRating
6.6
7,277 reviews
Search British Airways flights
United AirlinesPriceFrom $443Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Portugal?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Portugal. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boston to Portugal with flexible booking policies on momondo?

All flight searches from Boston to Portugal on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boston to Portugal?

momondo helps you find the best flight between Boston and Portugal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Portugal right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to Portugal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $356
Flights to Portofrom $340
Flights to Funchalfrom $383
Flights to Farofrom $377
Flights to Ponta Delgadafrom $450
Flights to Lajesfrom $522
Flights to Hortafrom $589
Flights to Pico Islandfrom $559
Flights to Porto Santofrom $580
Flights to Velasfrom $591