What is the cheapest airline that flies from Boston Logan Intl to Lisbon Humberto Delgado?

United Airlines, SWISS, and Azores Airlines are the most popular carriers operating from Boston Logan Intl to Lisbon Humberto Delgado

Which layover airport has the shortest connection time from Boston to Lisbon?

Lajes (TER) has the shortest average layover time for this route: 1h 28m.

How many flights depart from Boston to Lisbon on average per day?

The number of flights available between Boston and Lisbon is 6 per day as of September 2025. The most frequent departure time is 11:00PM, with 100% of daily flights leaving in the evening.

Which layover airport has the shortest travel time from Boston to Lisbon?

Flights connecting via Porto (OPO) have the shortest average one-way travel time: 9h 00m.

Which layover airport offers the lowest fares from Boston to Lisbon?

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $440.

Which airport is the most popular layover for flights between Boston and Lisbon?

Ponta Delgada (PDL) was the most common stop: 29% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Boston to Lisbon on average per week?

As of September 2025, there are 47 flights per week flying from Boston to Lisbon. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.

What airlines fly to Lisbon?

TAP AIR PORTUGAL, Delta and Air France are the top three most popular airlines that fly to Lisbon from Boston according to our data. TAP AIR PORTUGAL is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 22 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?

Prices for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport were last updated today.

How many operators does momondo search for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?

The number of operators available for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport is 22 as of September 2025.

How old do you have to be to fly from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$311 Cheap Flights from Boston to Lisbon in 2025/26

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Round-trip

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Cheap round-trip flights

8:05 pm - 9:50 pmBOS-LIS

20h 45m2 stops

10:05 pm - 3:25 pmLIS-BOS

22h 20m2 stops

$496Multiple Airlines

Find Deal

Wed, Oct 8 - Tue, Oct 14

8:05 pm - 1:40 pmBOS-LIS

12h 35m1 stop

5:55 am - 3:25 pmLIS-BOS

14h 30m1 stop

$497Multiple Airlines

Find Deal

Tue, Oct 14 - Wed, Oct 22

10:15 am - 8:55 amBOS-LIS

17h 40m1 stop

11:20 am - 9:32 amLIS-BOS

27h 12m1 stop

$498Air Canada

Find Deal

Sat, Feb 14 - Sat, Feb 21

6:40 pm - 9:20 amBOS-LIS

9h 40m1 stop

12:35 pm - 8:20 pmLIS-BOS

12h 45m1 stop

$499Multiple Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 11

9:30 am - 8:10 amBOS-LIS

17h 40m2 stops

10:50 am - 1:13 pmLIS-BOS

31h 23m2 stops

$501United Airlines

Find Deal

Mon, Jan 19 - Sun, Feb 1

6:55 pm - 11:05 amBOS-LIS

11h 10m1 stop

12:20 pm - 10:57 pmLIS-BOS

15h 37m2 stops

$502United Airlines

Find Deal

Thu, Oct 9 - Fri, Oct 17

6:15 am - 8:55 amBOS-LIS

21h 40m2 stops

11:20 am - 9:32 amLIS-BOS

27h 12m1 stop

$505Air Canada

Find Deal

Sat, Feb 14 - Sat, Feb 21

10:25 pm - 9:55 amBOS-LIS

6h 30mnonstop

11:40 am - 2:35 pmLIS-BOS

7h 55mnonstop

$520TAP AIR PORTUGAL

Find Deal

Sat, Nov 8 - Mon, Nov 17

11:45 pm - 10:15 amBOS-LIS

6h 30mnonstop

11:40 am - 2:35 pmLIS-BOS

7h 55mnonstop

$530TAP AIR PORTUGAL

Find Deal

Fri, Oct 31 - Mon, Nov 24

3:34 pm - 9:00 amBOS-LIS

12h 26m1 stop

11:15 am - 2:05 pmLIS-BOS

7h 50mnonstop

$539Delta

Find Deal

Sat, Feb 21 - Sat, Feb 28

United Airlines flights from Boston to Lisbon

Our best United Airlines deals on Boston to Lisbon flight tickets

United Airlines

Jan 19

BOS9:30 amBoston Logan Intl

17h 40m

2 stops

LIS8:10 amLisbon Humberto Delgado

Feb 1

LIS10:50 amLisbon Humberto Delgado

31h 23m

2 stops

BOS1:13 pmBoston Logan Intl

$501

Find similar

United Airlines

Oct 9

BOS6:55 pmBoston Logan Intl

11h 10m

1 stop

LIS11:05 amLisbon Humberto Delgado

Oct 17

LIS12:20 pmLisbon Humberto Delgado

15h 37m

2 stops

BOS10:57 pmBoston Logan Intl

$502

Find similar

United Airlines

Oct 21

BOS3:15 pmBoston Logan Intl

13h 05m

1 stop

LIS9:20 amLisbon Humberto Delgado

Nov 7

LIS6:10 amLisbon Humberto Delgado

17h 25m

1 stop

BOS6:35 pmBoston Logan Intl

$503

Find similar

Turkish Airlines flights from Boston to Lisbon

Our best Turkish Airlines deals on Boston to Lisbon flight tickets

Turkish Airlines

Sep 24

BOS9:35 pmBoston Logan Intl

31h 10m

1 stop

LIS9:45 amLisbon Humberto Delgado

Oct 8

LIS4:30 pmLisbon Humberto Delgado

32h 10m

1 stop

BOS7:40 pmBoston Logan Intl

$622

Find similar

Turkish Airlines

Sep 23

BOS9:35 pmBoston Logan Intl

21h 00m

1 stop

LIS11:35 pmLisbon Humberto Delgado

Oct 2

LIS4:45 pmLisbon Humberto Delgado

31h 55m

1 stop

BOS7:40 pmBoston Logan Intl

$642

Find similar

Turkish Airlines

Sep 23

BOS9:35 pmBoston Logan Intl

36h 40m

1 stop

LIS3:15 pmLisbon Humberto Delgado

Oct 21

LIS10:55 amLisbon Humberto Delgado

37h 45m

1 stop

BOS7:40 pmBoston Logan Intl

$645

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 10/8

8:05 pm-9:50 pm

2 stops20h 45m

Lisbon Humberto Delgado

Tue 10/14

10:05 pm-3:25 pm

2 stops22h 20m

$496

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 10/14

8:05 pm-1:40 pm

1 stop12h 35m

Lisbon Humberto Delgado

Wed 10/22

5:55 am-3:25 pm

1 stop14h 30m

$497

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 2/14

10:15 am-8:55 am

1 stop17h 40m

Lisbon Humberto Delgado

Sat 2/21

11:20 am-9:32 am

1 stop27h 12m

$498

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 11/4

6:40 pm-9:20 am

1 stop9h 40m

Lisbon Humberto Delgado

Tue 11/11

12:35 pm-8:20 pm

1 stop12h 45m

$499

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 1/19

9:30 am-8:10 am

2 stops17h 40m

Lisbon Humberto Delgado

Sun 2/1

10:50 am-1:13 pm

2 stops31h 23m

$501

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 10/9

6:55 pm-11:05 am

1 stop11h 10m

Lisbon Humberto Delgado

Fri 10/17

12:20 pm-10:57 pm

2 stops15h 37m

$502

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 2/14

6:15 am-8:55 am

2 stops21h 40m

Lisbon Humberto Delgado

Sat 2/21

11:20 am-9:32 am

1 stop27h 12m

$505

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 11/8

10:25 pm-9:55 am

Nonstop6h 30m

Lisbon Humberto Delgado

Mon 11/17

11:40 am-2:35 pm

Nonstop7h 55m

$520

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 10/31

11:45 pm-10:15 am

Nonstop6h 30m

Lisbon Humberto Delgado

Mon 11/24

11:40 am-2:35 pm

Nonstop7h 55m

$530

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 2/21

3:34 pm-9:00 am

1 stop12h 26m

Lisbon Humberto Delgado

Sat 2/28

11:15 am-2:05 pm

Nonstop7h 50m

$539

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to Lisbon

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

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to Lisbon?

In general, February is the cheapest month to fly from Boston to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $646. If you are unable to visit Lisbon during the month of February, then departing from Boston during the month January is also very affordable. Most momondo users find prices during this month for around $650.

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

Our data shows that Monday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $793. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Lisbon for around $872.

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

The cheapest time of day to fly to Lisbon is at noon when flights can be purchased for as low as $351. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $830 on average. Flights to Lisbon from Boston in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Boston Logan Intl to Lisbon Humberto Delgado flight route?

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

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

You are more likely to see cheaper flights to Lisbon from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $789 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Boston for as low as $697 on momondo.

What cabin class options are available on Boston Logan Intl to Lisbon Humberto Delgado flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to Lisbon Humberto Delgado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boston to Lisbon flight prices changed over time?

As of September 2025, prices for Boston to Lisbon flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Lisbon (BOS to LIS) flight deals and tips

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

Best Price Found	$258
Fastest flight time	6h 20m
Direct flights	Every day
Airports in Lisbon	1 airport

The best one-way flight to Lisbon from Boston in the past 72 hours is $258. The best round-trip flight deal from Boston to Lisbon found on momondo in the last 72 hours is $618.

The fastest flight from Boston to Lisbon takes 6h 20m

Direct flights go from Boston to Lisbon every day.

There is 1 airport near Lisbon: Lisbon Humberto Delgado (LIS)

Search flight deals

How far is Boston Logan Intl to Lisbon Humberto Delgado by plane?
Lisbon Humberto Delgado is 3186.3 mi away from Boston Logan Intl. Typically, this will take 6h 30m by plane in normal conditions.
When did momondo last update prices for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport were last updated today.
How many operators does momondo search for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?
The number of operators available for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport is 22 as of September 2025.
How old do you have to be to fly from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boston to Lisbon?
momondo data reveals that the most frequently booked plane model on the route from Boston to Lisbon is Airbus A321neo, representing 35.78% of all bookings. The subsequent popular models are Airbus A330-900neo at 34.43%, Boeing 767-300 (winglets) at 18.38%, and Boeing 777-200/200ER at 1.46%.
What is the most popular airline from Boston to Lisbon?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Boston to Lisbon is TAP AIR PORTUGAL (48% of total bookings). The next most popular airlines are Delta (17%), Air France (8%), and KLM (6%).

Best airlines flying from Boston to Lisbon

Compare and see reviews for airlines that fly from Boston to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
Vueling	PriceFrom $165	Free Cancellation	Rating 7.1 1,185 reviews	Search Vueling flights
LEVEL	PriceFrom $226	Free Cancellation	Rating 4.0 4 reviews	Search LEVEL flights
Azores Airlines	PriceFrom $319	Free Cancellation	Rating 7.5 73 reviews	Search Azores Airlines flights
PLAY	PriceFrom $333	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Iberia	PriceFrom $343	Free Cancellation	Rating 7.0 2,925 reviews	Search Iberia flights
Scandinavian Airlines	PriceFrom $381	Free Cancellation	Rating 7.4 1,486 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $426	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Icelandair	PriceFrom $439	Free Cancellation	Rating 7.0 545 reviews	Search Icelandair flights
Aer Lingus	PriceFrom $465	Free Cancellation	Rating 7.2 1,277 reviews	Search Aer Lingus flights
SWISS	PriceFrom $499	Free Cancellation	Rating 7.6 1,737 reviews	Search SWISS flights

Emirates Flights From Boston to Lisbon
Emirates is one of the most popular airlines flying from Boston to Lisbon, operating 3 flights/week on average for this route. A good Emirates flight deal for Boston to Lisbon starts from $637 round-trip, up to an average price of $831. Our users have rated Emirates at 8.1/10.
KLM Flights From Boston to Lisbon
$619 is the best KLM flight deal from Boston to Lisbon found on momondo over the last 72 hours. The average KLM ticket price found was closer to $812, however, with flight time and availability significantly affecting the price. KLM (7.8/10 from 1,386 user reviews) flies into Lisbon from Boston 6 times in an average week so prices can vary.

Sintra

Fátima

Ericeira

Nazaré

Oeiras

Setúbal

Peniche

Almada

Leiria

Tomar

Estoril

Sesimbra

Evora

Figueira da Foz

Zambujeira do Mar

Torres Vedras

Batalha

Óbidos

Comporta

Costa da Caparica

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Lisbon for you.

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

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

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

momondo helps you find the best flight between Boston and Lisbon 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 Lisbon right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Lisbon, momondo offers a useful price alert feature which will track prices for flights to Lisbon from Boston and alert you when they change.

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Boston to Lisbon from $311

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 Lisbon departing on 11/24. 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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United Airlines flights from Boston to Lisbon

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Our best Turkish Airlines deals on Boston to Lisbon flight tickets

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Use the filters below to find and compare flights from Boston to Lisbon that are best for you.

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How to get the cheapest flight ticket from Boston to Lisbon

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 Lisbon?

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

Our data shows that Monday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $793. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Lisbon for around $872.

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

What is the cheapest Boston Logan Intl to Lisbon Humberto Delgado flight route?

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

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

What cabin class options are available on Boston Logan Intl to Lisbon Humberto Delgado flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to Lisbon Humberto Delgado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boston to Lisbon flight prices changed over time?

As of September 2025, prices for Boston to Lisbon flights are approximately 16% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Boston Logan Intl to Lisbon Humberto Delgado?

United Airlines, SWISS, and Azores Airlines are the most popular carriers operating from Boston Logan Intl to Lisbon Humberto Delgado

What airlines fly to Lisbon?

Which airport is the most popular layover for flights between Boston and Lisbon?

Ponta Delgada (PDL) was the most common stop: 29% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Boston to Lisbon?

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $440.

Which layover airport has the shortest travel time from Boston to Lisbon?

Flights connecting via Porto (OPO) have the shortest average one-way travel time: 9h 00m.

Which layover airport has the shortest connection time from Boston to Lisbon?

Lajes (TER) has the shortest average layover time for this route: 1h 28m.

How many flights depart from Boston to Lisbon on average per day?

The number of flights available between Boston and Lisbon is 6 per day as of September 2025. The most frequent departure time is 11:00PM, with 100% of daily flights leaving in the evening.

How many flights depart from Boston to Lisbon on average per week?

As of September 2025, there are 47 flights per week flying from Boston to Lisbon. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.

When to book flights from Boston to Lisbon

Cheap Boston to Lisbon (BOS to LIS) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Lisbon

How far is Boston Logan Intl to Lisbon Humberto Delgado by plane?

When did momondo last update prices for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?

How many operators does momondo search for flights from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?

How old do you have to be to fly from Boston Logan Intl Airport to Lisbon Humberto Delgado Airport?

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

What is the most popular plane model from Boston to Lisbon?

What is the most popular airline from Boston to Lisbon?

Best airlines flying from Boston to Lisbon

Compare and see reviews for airlines that fly from Boston to Lisbon with momondo

Emirates Flights From Boston to Lisbon

KLM Flights From Boston to Lisbon

Traveling to a place near Lisbon?

Why use momondo?

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

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

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

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

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal