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Cheap flights from Boston to Portugal from $199

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 12/1. 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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Cheap round-trip flights

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American Airlines Logo
12:16 pm - 7:40 amBOS-OPO
14h 24m2 stops
American Airlines Logo
12:25 pm - 10:56 pmOPO-BOS
15h 31m2 stops
$390American Airlines
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Wed, Feb 4 - Wed, Feb 11
United Airlines Logo
7:57 pm - 9:30 amBOS-OPO
9h 33m1 stop
United Airlines Logo
6:00 am - 8:15 pmOPO-BOS
18h 15m2 stops
$391United Airlines
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Sun, Mar 15 - Wed, Mar 25
United Airlines Logo
2:20 pm - 9:30 amBOS-OPO
14h 10m2 stops
United Airlines Logo
12:35 pm - 8:03 pmOPO-BOS
12h 28m1 stop
$392United Airlines
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Mon, Mar 2 - Fri, Apr 10
TAP AIR PORTUGAL Logo
10:30 pm - 10:10 amBOS-OPO
6h 40mnonstop
TAP AIR PORTUGAL Logo
10:35 pm - 8:05 pmOPO-BOS
26h 30m1 stop
$393TAP AIR PORTUGAL
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Wed, Apr 8 - Mon, Apr 13
TAP AIR PORTUGAL Logo
10:45 pm - 7:55 amBOS-OPO
28h 10m1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 2:35 pmOPO-BOS
25h 35m1 stop
$394TAP AIR PORTUGAL
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Thu, Dec 4 - Wed, Dec 10
Delta Logo
11:30 am - 10:30 amBOS-OPO
18h 00m2 stops
Delta Logo
6:00 am - 6:55 pmOPO-BOS
17h 55m1 stop
$399Delta
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Wed, Feb 11 - Wed, Feb 25
Delta Logo
7:30 pm - 10:30 amBOS-OPO
11h 00m1 stop
Delta Logo
11:20 am - 7:24 amOPO-BOS
24h 04m2 stops
$403Delta
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Sun, Mar 15 - Thu, Mar 26
Iberia Logo
9:20 pm - 11:50 amBOS-LIS
9h 30m1 stop
Iberia Logo
8:20 am - 3:15 pmLIS-BOS
11h 55m1 stop
$498Iberia
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Wed, Jan 28 - Mon, Feb 2
Iberia Logo
4:45 pm - 6:05 pmBOS-LIS
20h 20m1 stop
Iberia Logo
9:05 am - 8:55 pmLIS-BOS
16h 50m1 stop
$499Iberia
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Tue, Dec 9 - Tue, Dec 16
KLM Logo
7:10 pm - 5:10 pmBOS-FNC
17h 00m1 stop
KLM Logo
10:20 am - 1:25 pmFNC-BOS
32h 05m1 stop
$536KLM
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Thu, Jan 29 - Thu, Feb 5

Aer Lingus flights from Boston to Portugal

Our best Aer Lingus deals on Boston to Portugal flight tickets
Aer Lingus
Nov 28
BOS5:10 pmBoston Logan Intl
12h 00m
1 stop
LIS10:10 amLisbon Humberto Delgado
Dec 4
LIS10:50 amLisbon Humberto Delgado
13h 05m
1 stop
BOS6:55 pmBoston Logan Intl
$502
Find similar
Aer Lingus
Nov 28
BOS5:10 pmBoston Logan Intl
12h 00m
1 stop
LIS10:10 amLisbon Humberto Delgado
Dec 4
LIS10:50 amLisbon Humberto Delgado
13h 05m
1 stop
BOS6:55 pmBoston Logan Intl
$505
Find similar
Aer Lingus
Nov 28
BOS5:10 pmBoston Logan Intl
12h 00m
1 stop
LIS10:10 amLisbon Humberto Delgado
Dec 4
LIS10:50 amLisbon Humberto Delgado
13h 05m
1 stop
BOS6:55 pmBoston Logan Intl
$507
Find similar

Iberia flights from Boston to Portugal

Our best Iberia deals on Boston to Portugal flight tickets
Iberia
Nov 29
BOS9:20 pmBoston Logan Intl
9h 25m
1 stop
OPO11:45 amPorto
Dec 12
OPO12:25 pmPorto
12h 25m
1 stop
BOS7:50 pmBoston Logan Intl
$420
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Iberia
Dec 5
BOS4:45 pmBoston Logan Intl
18h 15m
1 stop
OPO4:00 pmPorto
Dec 11
OPO8:20 amPorto
11h 55m
1 stop
BOS3:15 pmBoston Logan Intl
$423
Find similar
Iberia
Jan 28
BOS4:45 pmBoston Logan Intl
9h 55m
1 stop
LIS7:40 amLisbon Humberto Delgado
Feb 2
LIS8:20 amLisbon Humberto Delgado
11h 55m
1 stop
BOS3:15 pmBoston Logan Intl
$498
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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 November 16, 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 2/4

12:16 pm-7:40 am

2 stops14h 24m

Porto

Wed 2/11

12:25 pm-10:56 pm

2 stops15h 31m

$390

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 3/15

7:57 pm-9:30 am

1 stop9h 33m

Porto

Wed 3/25

6:00 am-8:15 pm

2 stops18h 15m

$391

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 3/2

2:20 pm-9:30 am

2 stops14h 10m

Porto

Fri 4/10

12:35 pm-8:03 pm

1 stop12h 28m

$392

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 4/8

10:30 pm-10:10 am

Nonstop6h 40m

Porto

Mon 4/13

10:35 pm-8:05 pm

1 stop26h 30m

$393

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 12/4

10:45 pm-7:55 am

1 stop28h 10m

Porto

Wed 12/10

6:00 pm-2:35 pm

1 stop25h 35m

$394

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 2/11

11:30 am-10:30 am

2 stops18h 00m

Porto

Wed 2/25

6:00 am-6:55 pm

1 stop17h 55m

$399

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 3/15

7:30 pm-10:30 am

1 stop11h 00m

Porto

Thu 3/26

11:20 am-7:24 am

2 stops24h 04m

$403

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 1/28

9:20 pm-11:50 am

1 stop9h 30m

Lisbon Humberto Delgado

Mon 2/2

8:20 am-3:15 pm

1 stop11h 55m

$498

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 12/9

4:45 pm-6:05 pm

1 stop20h 20m

Lisbon Humberto Delgado

Tue 12/16

9:05 am-8:55 pm

1 stop16h 50m

$499

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Thu 1/29

7:10 pm-5:10 pm

1 stop17h 00m

Funchal Madeira

Thu 2/5

10:20 am-1:25 pm

1 stop32h 05m

$536

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 $632, 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 $642.

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 $780. 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 $820 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 $778 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 $709 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?

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

$181

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 $181. The best round-trip flight deal from Boston to Portugal found on momondo in the last 72 hours is $501.
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)
Search flight deals

  • 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
1,208 reviews
Search Vueling flights
LEVELPriceFrom $228Free CancellationRating
0.0
Search LEVEL flights
PLAYPriceFrom $333Free CancellationRating
7.0
103 reviews
Search PLAY flights
SWISSPriceFrom $338Free CancellationRating
7.5
1,787 reviews
Search SWISS flights
IberiaPriceFrom $343Free CancellationRating
7.0
3,018 reviews
Search Iberia flights
British AirwaysPriceFrom $374Free CancellationRating
6.7
7,527 reviews
Search British Airways flights
Scandinavian AirlinesPriceFrom $381Free CancellationRating
7.4
1,577 reviews
Search Scandinavian Airlines flights
KLMPriceFrom $394Free CancellationRating
7.7
1,411 reviews
Search KLM flights
IcelandairPriceFrom $402Free CancellationRating
7.0
580 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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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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