Cheap flights from Boston to Portugal from $220

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 11/29. 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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Iberia Logo
5:59 pm - 11:45 amBOS-OPO
13h 46m2 stops
Iberia Logo
8:40 pm - 10:47 pmOPO-BOS
31h 07m2 stops
$424Iberia
Find Deal
Wed, Oct 29 - Tue, Nov 4
TAP AIR PORTUGAL Logo
11:15 pm - 10:55 amBOS-OPO
6h 40mnonstop
TAP AIR PORTUGAL Logo
9:15 pm - 8:05 pmOPO-BOS
27h 50m1 stop
$427TAP AIR PORTUGAL
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Wed, Apr 8 - Mon, Apr 13
United Airlines Logo
9:30 am - 9:30 amBOS-OPO
19h 00m2 stops
United Airlines Logo
12:35 pm - 11:48 pmOPO-BOS
15h 13m2 stops
$428United Airlines
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Thu, Mar 5 - Wed, Mar 18
Delta Logo
12:00 pm - 10:30 amBOS-OPO
17h 30m2 stops
Delta Logo
11:15 am - 1:30 pmOPO-BOS
31h 15m1 stop
$445Delta
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Fri, Jan 16 - Mon, Jan 19
Delta Logo
12:00 pm - 10:30 amBOS-OPO
17h 30m2 stops
Delta Logo
11:25 am - 8:25 amOPO-BOS
26h 00m2 stops
$450Delta
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Fri, Jan 16 - Wed, Jan 21
Air France Logo
6:30 pm - 10:25 amBOS-OPO
10h 55m1 stop
Air France Logo
11:25 am - 4:20 pmOPO-BOS
33h 55m1 stop
$455Air France
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Thu, Nov 13 - Mon, Nov 17
Azores Airlines Logo
9:25 pm - 6:20 amBOS-PDL
4h 55mnonstop
Azores Airlines Logo
5:45 pm - 7:55 pmPDL-BOS
6h 10mnonstop
$579Azores Airlines
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Sun, Nov 9 - Mon, Nov 17
KLM Logo
7:10 pm - 5:50 pmBOS-FNC
17h 40m1 stop
KLM Logo
10:10 am - 6:55 pmFNC-BOS
13h 45m1 stop
$587KLM
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Fri, Dec 5 - Sun, Dec 14
Azores Airlines Logo
9:20 pm - 6:15 amBOS-PDL
4h 55mnonstop
Azores Airlines Logo
5:45 pm - 7:55 pmPDL-BOS
6h 10mnonstop
$590Azores Airlines
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Wed, Jan 7 - Mon, Jan 12
KLM Logo
8:50 pm - 9:35 amBOS-FNC
31h 45m1 stop
KLM Logo
10:25 am - 6:55 pmFNC-BOS
13h 30m1 stop
$620KLM
Find Deal
Mon, Nov 10 - Mon, Nov 24

Air Canada flights from Boston to Portugal

Our best Air Canada deals on Boston to Portugal flight tickets
Air Canada
Dec 14
BOS5:30 amBoston Logan Intl
22h 50m
2 stops
LIS9:20 amLisbon Humberto Delgado
Dec 27
LIS11:20 amLisbon Humberto Delgado
27h 12m
1 stop
BOS9:32 amBoston Logan Intl
Air Canada
Oct 15
BOS6:00 amBoston Logan Intl
24h 25m
2 stops
OPO11:25 amPorto
Oct 22
OPO6:00 amPorto
40h 38m
2 stops
BOS5:38 pmBoston Logan Intl
Air Canada
Oct 27
BOS5:30 amBoston Logan Intl
23h 50m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 12
LIS6:10 amLisbon Humberto Delgado
20h 17m
2 stops
BOS9:27 pmBoston Logan Intl

Scandinavian Airlines flights from Boston to Portugal

Our best Scandinavian Airlines deals on Boston to Portugal flight tickets
Scandinavian Airlines
Jan 16
BOS7:00 pmBoston Logan Intl
40h 05m
2 stops
LIS4:05 pmLisbon Humberto Delgado
Feb 5
LIS6:55 pmLisbon Humberto Delgado
25h 55m
1 stop
BOS3:50 pmBoston Logan Intl
Scandinavian Airlines
Mar 2
BOS8:45 pmBoston Logan Intl
38h 20m
2 stops
LIS4:05 pmLisbon Humberto Delgado
Mar 12
LIS1:00 pmLisbon Humberto Delgado
31h 50m
2 stops
BOS4:50 pmBoston Logan Intl
Scandinavian Airlines
Mar 2
BOS8:45 pmBoston Logan Intl
38h 20m
2 stops
LIS4:05 pmLisbon Humberto Delgado
Mar 14
LIS8:05 amLisbon Humberto Delgado
60h 45m
2 stops
BOS4:50 pmBoston Logan Intl

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 October 13, 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

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 10/29

5:59 pm-11:45 am

2 stops13h 46m

Porto

Tue 11/4

8:40 pm-10:47 pm

2 stops31h 07m

$424

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 4/8

11:15 pm-10:55 am

Nonstop6h 40m

Porto

Mon 4/13

9:15 pm-8:05 pm

1 stop27h 50m

$427

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 3/5

9:30 am-9:30 am

2 stops19h 00m

Porto

Wed 3/18

12:35 pm-11:48 pm

2 stops15h 13m

$428

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Fri 1/16

12:00 pm-10:30 am

2 stops17h 30m

Porto

Mon 1/19

11:15 am-1:30 pm

1 stop31h 15m

$445

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Fri 1/16

12:00 pm-10:30 am

2 stops17h 30m

Porto

Wed 1/21

11:25 am-8:25 am

2 stops26h 00m

$450

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 11/13

6:30 pm-10:25 am

1 stop10h 55m

Porto

Mon 11/17

11:25 am-4:20 pm

1 stop33h 55m

$455

BostonPonta Delgada

BOS - PDL

BOSPDL

Boston Logan Intl

Sun 11/9

9:25 pm-6:20 am

Nonstop4h 55m

Ponta Delgada Nordela

Mon 11/17

5:45 pm-7:55 pm

Nonstop6h 10m

$579

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Fri 12/5

7:10 pm-5:50 pm

1 stop17h 40m

Funchal Madeira

Sun 12/14

10:10 am-6:55 pm

1 stop13h 45m

$587

BostonPonta Delgada

BOS - PDL

BOSPDL

Boston Logan Intl

Wed 1/7

9:20 pm-6:15 am

Nonstop4h 55m

Ponta Delgada Nordela

Mon 1/12

5:45 pm-7:55 pm

Nonstop6h 10m

$590

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Mon 11/10

8:50 pm-9:35 am

1 stop31h 45m

Funchal Madeira

Mon 11/24

10:25 am-6:55 pm

1 stop13h 30m

$620

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 February. Flight prices, which tend to average around $642, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Boston during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $651.

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

According to our data, Monday is the cheapest day to fly to Portugal from Boston. The lowest ticket price found for a Monday departure recently was $783. 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 $868.

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 $825 per ticket.

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

Fly from Boston Logan Intl to Porto 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 $785 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 $711 on momondo.

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

There are 4 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?

You could potentially save up to 2% on your flight if you consider stops on a Boston to Portugal flight.

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

$245

Fastest flight time

4h 55m

Direct flights

Every day

Airports in Portugal

3 airports
The best one-way flight to Portugal from Boston in the past 72 hours is $245. The best round-trip flight deal from Boston to Portugal found on momondo in the last 72 hours is $527.
The fastest flight from Boston to Portugal takes 4h 55m
Direct flights go from Boston to Portugal every day.
There are 3 airports near Portugal: Lajes (TER), Lisbon Humberto Delgado (LIS), Ponta Delgada Nordela (PDL)
  • 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
1,196 reviews
Search Vueling flights
LEVELPriceFrom $227Free CancellationRating
0.0
Search LEVEL flights
PLAYPriceFrom $333Free CancellationRating
7.0
103 reviews
Search PLAY flights
SWISSPriceFrom $338Free CancellationRating
7.6
1,767 reviews
Search SWISS flights
IberiaPriceFrom $343Free CancellationRating
7.0
2,988 reviews
Search Iberia flights
British AirwaysPriceFrom $374Free CancellationRating
6.7
7,453 reviews
Search British Airways flights
Scandinavian AirlinesPriceFrom $381Free CancellationRating
7.4
1,531 reviews
Search Scandinavian Airlines flights
KLMPriceFrom $394Free CancellationRating
7.7
1,402 reviews
Search KLM flights
IcelandairPriceFrom $402Free CancellationRating
7.0
555 reviews
Search Icelandair flights
LEVELPriceFrom $405Free CancellationRating
0.0
0 reviews
Search LEVEL 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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1 adult
Wed 11/12
Wed 11/19

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