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Cheap flights from Boston to Lisbon from $204

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 9/29. 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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Find the cheapest flights from Boston to Lisbon

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to Lisbon.
PLAY Logo
7:15 pm - 8:40 pmBOS-LIS
20h 25m1 stop
PLAY Logo
9:20 pm - 5:50 pmLIS-BOS
25h 30m1 stop
$420PLAY
Find Deal
Sun, May 4 - Fri, May 9
PLAY Logo
7:15 pm - 8:40 pmBOS-LIS
20h 25m1 stop
PLAY Logo
9:25 pm - 5:50 pmLIS-BOS
25h 25m1 stop
$425PLAY
Find Deal
Sun, May 4 - Mon, May 12
PLAY Logo
7:15 pm - 8:20 pmBOS-LIS
20h 05m1 stop
PLAY Logo
9:25 pm - 5:50 pmLIS-BOS
25h 25m1 stop
$427PLAY
Find Deal
Thu, May 8 - Mon, May 19
TAP AIR PORTUGAL Logo
6:10 pm - 5:40 amBOS-LIS
6h 30mnonstop
TAP AIR PORTUGAL Logo
5:35 pm - 8:05 pmLIS-BOS
7h 30mnonstop
$585TAP AIR PORTUGAL
Find Deal
Sun, Oct 5 - Sat, Oct 18
TAP AIR PORTUGAL Logo
10:20 pm - 9:50 amBOS-LIS
6h 30mnonstop
TAP AIR PORTUGAL Logo
5:35 pm - 8:05 pmLIS-BOS
7h 30mnonstop
$594TAP AIR PORTUGAL
Find Deal
Sun, Sep 28 - Mon, Oct 6
Delta Logo
5:00 pm - 8:00 amBOS-LIS
10h 00m1 stop
Delta Logo
12:45 pm - 3:30 pmLIS-BOS
7h 45mnonstop
$636Delta
Find Deal
Mon, Oct 13 - Fri, Oct 24
Air France Logo
11:25 pm - 10:45 amBOS-LIS
6h 20mnonstop
Air France Logo
12:45 pm - 3:20 pmLIS-BOS
7h 35mnonstop
$677Air France
Find Deal
Mon, May 12 - Mon, May 19
Delta Logo
11:25 pm - 11:00 amBOS-LIS
6h 35mnonstop
Delta Logo
12:45 pm - 3:30 pmLIS-BOS
7h 45mnonstop
$679Delta
Find Deal
Fri, Oct 3 - Sun, Oct 5
KLM Logo
5:00 pm - 8:00 amBOS-LIS
10h 00m1 stop
KLM Logo
8:55 am - 4:30 pmLIS-BOS
12h 35m1 stop
$683KLM
Find Deal
Thu, Sep 25 - Sat, Oct 4
Air France Logo
7:20 pm - 11:15 amBOS-LIS
10h 55m1 stop
Air France Logo
12:45 pm - 3:20 pmLIS-BOS
7h 35mnonstop
$694Air France
Find Deal
Thu, May 15 - Thu, May 22

Delta flights from Boston to Lisbon

Our best Delta deals on Boston to Lisbon flight tickets
Delta
Oct 13
BOS5:00 pmBoston Logan Intl
10h 00m
1 stop
LIS8:00 amLisbon Humberto Delgado
Oct 24
LIS12:45 pmLisbon Humberto Delgado
7h 45m
BOS3:30 pmBoston Logan Intl
Delta
Oct 3
BOS11:25 pmBoston Logan Intl
6h 35m
LIS11:00 amLisbon Humberto Delgado
Oct 5
LIS12:45 pmLisbon Humberto Delgado
7h 45m
BOS3:30 pmBoston Logan Intl
Delta
Oct 3
BOS11:25 pmBoston Logan Intl
6h 35m
LIS11:00 amLisbon Humberto Delgado
Oct 19
LIS5:00 amLisbon Humberto Delgado
18h 20m
1 stop
BOS6:20 pmBoston Logan Intl

United Airlines flights from Boston to Lisbon

Our best United Airlines deals on Boston to Lisbon flight tickets
United Airlines
Sep 23
BOS6:00 amBoston Logan Intl
22h 20m
1 stop
LIS9:20 amLisbon Humberto Delgado
Sep 30
LIS11:25 amLisbon Humberto Delgado
35h 33m
2 stops
BOS5:58 pmBoston Logan Intl
United Airlines
Oct 1
BOS9:15 amBoston Logan Intl
19h 05m
2 stops
LIS9:20 amLisbon Humberto Delgado
Oct 6
LIS11:25 amLisbon Humberto Delgado
28h 47m
2 stops
BOS11:12 amBoston Logan Intl
United Airlines
Oct 1
BOS6:30 pmBoston Logan Intl
9h 50m
1 stop
LIS9:20 amLisbon Humberto Delgado
Oct 10
LIS12:50 pmLisbon Humberto Delgado
27h 22m
2 stops
BOS11:12 amBoston Logan Intl

See travel insights to Lisbon from

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?

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 $651. 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 $660.

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

Our data shows that Tuesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $827. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Lisbon for around $907.

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 evening when prices are $873 on average. Flights to Lisbon from Boston in the evening 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 22 weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $830 when searching 22 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 $776 on momondo.

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

There are 3 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 April 2025, prices for Boston to Lisbon flights are approximately 13% 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

$204

Fastest flight time

6h 20m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sun

Airports in Lisbon

1 airport
The best one-way flight to Lisbon from Boston in the past 72 hours is $204. The best round-trip flight deal from Boston to Lisbon found on momondo in the last 72 hours is $420.
The fastest flight from Boston to Lisbon takes 6h 20m
Direct flights go from Boston to Lisbon on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. Airlines offering direct flights are: Virgin Atlantic, Delta and TAP AIR PORTUGAL.
There is 1 airport near Lisbon: Lisbon Humberto Delgado (LIS)

  • 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 20m 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
LEVELPriceFrom $260Free CancellationRating
4.0
4 reviews
Search LEVEL flights
Scandinavian AirlinesPriceFrom $323Free CancellationRating
7.3
1,345 reviews
Search Scandinavian Airlines flights
PLAYPriceFrom $332Free CancellationRating
6.9
101 reviews
Search PLAY flights
Azores AirlinesPriceFrom $335Free CancellationRating
7.6
66 reviews
Search Azores Airlines flights
VuelingPriceFrom $444Free CancellationRating
7.1
1,157 reviews
Search Vueling flights
TAP AIR PORTUGALPriceFrom $460Free CancellationRating
7.1
1,846 reviews
Search TAP AIR PORTUGAL flights
IberiaPriceFrom $510Free CancellationRating
7.0
2,686 reviews
Search Iberia flights
American AirlinesPriceFrom $519Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $524Free CancellationRating
6.6
6,815 reviews
Search British Airways flights
Aer LingusPriceFrom $535Free CancellationRating
7.0
1,068 reviews
Search Aer Lingus flights
  • Delta Flights From Boston to Lisbon

    Delta is one of the most popular airlines flying from Boston to Lisbon, operating 7 flights/week on average for this route. A good Delta flight deal for Boston to Lisbon starts from $623 round-trip, up to an average price of $987. Our users have rated Delta at 8.0/10.

  • Emirates Flights From Boston to Lisbon

    $637 is the best Emirates flight deal from Boston to Lisbon found on momondo over the last 72 hours. The average Emirates ticket price found was closer to $831, however, with flight time and availability significantly affecting the price. Emirates (8.0/10 from 3,206 user reviews) flies into Lisbon from Boston 6 times in an average week so prices can vary.


Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Nazaré
Almada
Ericeira
Setúbal
Oeiras
Evora
Óbidos
Estoril
Tomar
Peniche
Figueira da Foz
Torres Vedras
Batalha
Caldas da Rainha
Sesimbra
Leiria
Comporta
Sines

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.


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