This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
30 Oct — 6 Nov1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Boston Logan Intl to Lisbon Humberto Delgado are usually found in February or January, booked 15 days in advance, depart on a Thursday or Wednesday and return on a Monday
Cheap flight deals from Boston to Lisbon
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Cheapest flights from Boston to Lisbon
Explore the most affordable flight options available from Boston to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 September 2026.
Thu 5/119:35 p.m. -
Nonstop6h 20m
Mon 9/1111:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 967
Mon 28/127:15 a.m. -
2 stops21h 05m
Thu 7/18:55 a.m. -
2 stops30h 44m
Deal found 30/9C$ 971
Wed 4/117:20 a.m. -
2 stops20h 35m
Sun 8/115:55 a.m. -
2 stops19h 25m
Deal found 30/9C$ 973
Thu 22/101:35 p.m. -
1 stop13h 25m
Wed 4/1111:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 974
Mon 7/123:30 p.m. -
1 stop14h 10m
Sun 10/110:40 a.m. -
1 stop15h 48m
Deal found 28/9C$ 977
Sun 13/129:30 a.m. -
1 stop19h 35m
Thu 7/18:55 a.m. -
1 stop15h 07m
Deal found 30/9C$ 978
Wed 14/105:50 a.m. -
1 stop22h 30m
Thu 22/106:15 a.m. -
1 stop16h 25m
Deal found 29/9C$ 980
Wed 30/129:35 p.m. -
Nonstop6h 25m
Fri 8/110:00 a.m. -
1 stop13h 27m
Deal found 28/9C$ 981
Wed 14/1011:25 p.m. -
Nonstop6h 20m
Wed 21/105:00 a.m. -
1 stop16h 36m
Deal found 29/9C$ 983
Wed 14/1011:25 p.m. -
Nonstop6h 20m
Mon 19/1011:55 a.m. -
1 stop11h 35m
Deal found 29/9C$ 984
Thu 31/1211:44 a.m. -
2 stops15h 26m
Thu 7/18:55 a.m. -
1 stop10h 58m
Deal found 28/9C$ 986
Fri 23/105:50 a.m. -
1 stop22h 30m
Fri 30/1012:20 p.m. -
1 stop30h 12m
Deal found 30/9C$ 987
Best flights from Boston to Lisbon
Discover carefully curated flight deals from Boston to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.
Wed 14/1011:25 p.m. -
Nonstop6h 20m
Thu 22/105:00 a.m. -
1 stop16h 36m
Deal found 27/9C$ 983
Mon 2/119:40 p.m. -
Nonstop6h 20m
Thu 12/115:00 a.m. -
1 stop14h 13m
Deal found 28/9C$ 983
Thu 17/129:25 p.m. -
1 stop12h 25m
Tue 5/17:45 p.m. -
1 stop28h 55m
Deal found 25/9C$ 1,152
Mon 12/1011:25 p.m. -
Nonstop6h 20m
Wed 11/115:00 a.m. -
1 stop14h 13m
Deal found 27/9C$ 983
Sat 24/1010:40 p.m. -
Nonstop6h 20m
Mon 2/115:30 a.m. -
1 stop13h 59m
Deal found 25/9C$ 984
Wed 28/109:55 p.m. -
1 stop12h 45m
Wed 4/1111:15 a.m. -
Nonstop7h 44m
Deal found 27/9C$ 1,011
Wed 16/129:35 p.m. -
Nonstop6h 25m
Thu 7/15:00 a.m. -
1 stop14h 23m
Deal found 26/9C$ 1,098
Thu 24/129:30 p.m. -
Nonstop6h 25m
Tue 26/110:00 a.m. -
1 stop17h 26m
Deal found 29/9C$ 1,038
Sat 26/129:35 p.m. -
Nonstop6h 25m
Wed 27/15:00 a.m. -
2 stops19h 28m
Deal found 29/9C$ 1,061
Thu 29/1010:35 p.m. -
Nonstop6h 20m
Sun 1/1111:15 a.m. -
Nonstop7h 44m
Deal found 30/9C$ 1,213
Thu 24/129:30 p.m. -
Nonstop6h 25m
Wed 27/15:00 a.m. -
2 stops19h 21m
Deal found 29/9C$ 1,061
Wed 23/129:35 p.m. -
Nonstop6h 25m
Tue 26/15:30 a.m. -
2 stops16h 55m
Deal found 29/9C$ 1,105
Direct flights from Boston to Lisbon
Explore direct flight options from Boston to Lisbon based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.
Thu 5/119:35 p.m. -
Nonstop6h 20m
Mon 9/1111:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 967
Sun 21/29:35 p.m. -
Nonstop6h 20m
Mon 1/311:15 a.m. -
Nonstop7h 45m
Deal found 29/9C$ 974
Mon 9/116:00 p.m. -
Nonstop6h 35m
Thu 19/1112:00 p.m. -
Nonstop8h 00m
Deal found 30/9C$ 993
Mon 8/39:40 p.m. -
Nonstop6h 20m
Wed 17/311:15 a.m. -
Nonstop7h 45m
Deal found 29/9C$ 1,017
Wed 4/119:40 p.m. -
Nonstop6h 20m
Mon 23/1111:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 1,031
Wed 2/129:35 p.m. -
Nonstop6h 25m
Wed 9/1211:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 1,037
Tue 23/310:45 p.m. -
Nonstop6h 15m
Sat 3/412:45 p.m. -
Nonstop7h 25m
Deal found 26/9C$ 1,038
Thu 26/119:35 p.m. -
Nonstop6h 20m
Tue 8/1211:15 a.m. -
Nonstop7h 44m
Deal found 30/9C$ 1,041
Fri 6/119:40 p.m. -
Nonstop6h 20m
Sun 22/1111:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 1,047
Fri 6/119:40 p.m. -
Nonstop6h 20m
Thu 19/1111:15 a.m. -
Nonstop7h 44m
Deal found 30/9C$ 1,048
Mon 22/310:45 p.m. -
Nonstop6h 15m
Tue 6/412:45 p.m. -
Nonstop7h 25m
Deal found 30/9C$ 1,049
Sat 27/311:25 p.m. -
Nonstop6h 20m
Tue 6/412:45 p.m. -
Nonstop7h 25m
Deal found 30/9C$ 1,055
Last-minute flights from Boston to Lisbon
Discover last-minute flight deals from Boston to Lisbon. Data last updated 30 September 2026 and is based on user searches.
Wed 14/105:50 a.m. -
1 stop22h 30m
Thu 22/106:15 a.m. -
1 stop16h 25m
Deal found 29/9C$ 980
Wed 14/1011:25 p.m. -
Nonstop6h 20m
Thu 22/105:00 a.m. -
1 stop13h 15m
Deal found 29/9C$ 983
Wed 14/1011:25 p.m. -
Nonstop6h 20m
Mon 19/1011:55 a.m. -
1 stop11h 35m
Deal found 29/9C$ 984
Wed 14/109:51 a.m. -
2 stops19h 39m
Wed 21/106:15 a.m. -
1 stop16h 25m
Deal found 29/9C$ 988
Fri 16/1011:25 p.m. -
Nonstop6h 20m
Tue 10/1111:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 967
Fri 16/105:10 p.m. -
1 stop10h 40m
Tue 10/1111:15 a.m. -
Nonstop7h 44m
Deal found 28/9C$ 994
Sun 18/106:00 a.m. -
1 stop21h 00m
Tue 10/1111:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 981
Sun 18/1010:40 a.m. -
1 stop17h 40m
Wed 28/105:00 a.m. -
1 stop13h 45m
Deal found 27/9C$ 991
Thu 22/101:35 p.m. -
1 stop13h 25m
Wed 4/1111:15 a.m. -
Nonstop7h 44m
Deal found 29/9C$ 974
Fri 23/105:50 a.m. -
1 stop22h 30m
Fri 30/1012:20 p.m. -
1 stop30h 12m
Deal found 30/9C$ 987
Fri 23/109:10 a.m. -
1 stop17h 50m
Sat 31/105:30 a.m. -
1 stop13h 59m
Deal found 25/9C$ 990
Fri 23/105:50 a.m. -
1 stop22h 30m
Sat 31/1012:20 p.m. -
2 stops26h 58m
Deal found 30/9C$ 993
One-way flights from Boston to Lisbon
Search for one-way flight options from Boston to Lisbon. Find affordable one-way fares based on user searches. Data last updated 30 September 2026.
Sat 14/116:00 p.m. -
Nonstop6h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 30/9C$ 493
Thu 12/116:00 p.m. -
Nonstop6h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/9C$ 496
Mon 19/106:05 p.m. -
Nonstop6h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/9C$ 535
Sat 14/117:50 p.m. -
3 stops17h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 30/9C$ 551
Wed 28/1010:40 p.m. -
Nonstop6h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/9C$ 588
Tue 27/1010:40 p.m. -
Nonstop6h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/9C$ 589
Thu 29/1010:35 p.m. -
Nonstop6h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 29/9C$ 659
Thu 29/109:12 a.m. -
2 stops21h 08m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 29/9C$ 665
Thu 8/1010:55 p.m. -
1 stop28h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/9C$ 670
Sun 27/129:30 p.m. -
1 stop31h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/9C$ 676
Sun 27/129:30 p.m. -
Nonstop6h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 30/9C$ 680
Find flight deals from Boston to Lisbon
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 September 2026.
Customize your flight search to find flights from Boston to Lisbon 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, Cheapflights users made 7,457,451 searches. Data last updated 30 September 2026.
Use the filters below to find and compare flights from Boston to Lisbon that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Mon 19/10
6:05 p.m.-5:40 a.m.
Nonstop6h 35m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 535
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Tue 29/12
9:35 p.m.-9:00 a.m.
Nonstop6h 25m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 680
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Sun 27/12
9:30 p.m.-8:55 a.m.
Nonstop6h 25m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 680
Quickest round-trip
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Wed 25/11
9:40 p.m.-9:00 a.m.
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 680
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Mon 28/12
9:35 p.m.-9:00 a.m.
Nonstop6h 25m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 680
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Mon 28/12
5:45 a.m.-8:10 a.m.
2 stops21h 25m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 686
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Sun 27/12
5:45 a.m.-8:10 a.m.
2 stops21h 25m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 686
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Sat 26/12
9:35 p.m.-9:00 a.m.
Nonstop6h 25m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 751
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Wed 23/12
7:40 p.m.-8:10 a.m.
1 stop31h 30m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 774
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Fri 25/12
9:35 p.m.-9:00 a.m.
Nonstop6h 25m
Lisbon Humberto Delgado
Wed 31/12
12:00 a.m.-6:00 p.m.
Nonstop0h 00m
C$ 879
Flights are sorted by cheapest round-trip flights first.
Deals found on 28/9
Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3
Best time to book a flight from Boston to Lisbon
Have a flexible travel schedule? Discover the best time to fly to Lisbon from Boston with our price prediction graph.
BOS-LIS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Boston to Lisbon
Prices
Airlines
Delays
How far ahead should I book a flight from Boston to Lisbon?
The price you pay for your flight from Boston to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 14 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Boston to Lisbon?
Currently, February is the cheapest month in which you can book a flight from Boston to Lisbon (average of C$ 942). Flying from Boston to Lisbon in June is currently the most expensive (average of C$ 1,554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BOS to LIS?
Find hourly flight availability from Boston to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 September 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Lisbon as you normally would.
How much does it cost to fly round-trip from Boston to Lisbon?
Airfare is below average for this route at the moment.
Boston to Lisbon flights typically cost between C$ 1,020 and C$ 1,298 in November.The cheapest round-trip price found within the last 5 days was C$ 967 on Delta (5 Nov-9 Nov).
Weekly flight availability from Boston to Lisbon
Explore weekly flight availability from Boston to Lisbon. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 30 September 2026.
The most flights from BOS to LIS are scheduled on a Monday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).
How often are flights from Boston to Lisbon delayed?
About 14% of weekly flights between Boston and Lisbon have experienced delays in the past year, with the average delay time being 137 minutes.
What is the most punctual flight time for Boston to Lisbon flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boston to Lisbon flights?
Over the past year, TAP AIR PORTUGAL has had the lowest number of delays on this route, with just 13% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Boston to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How popular is this Boston to Lisbon flight route?
The Boston Logan Intl to Lisbon Humberto Delgado flight path was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Boston to Lisbon?
For as low as C$ 983, KLM can have you in Lisbon from Boston in 6h 20m. The distance from Boston to Lisbon is about 5121 km. All flights are typically direct.
What are the most reliable airlines from Boston to Lisbon?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Lisbon on time: Emirates (80%), airBaltic (77%), JetBlue (77%).
What are the cheapest flights from Boston to Lisbon?
While on average a flight from Boston to Lisbon is generally C$ 869, our data shows the cheapest flight currently is C$ 527. When looking at the most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), you can expect to pay C$ 1,061 for that flight.
Can I find deals for business class flights from Boston to Lisbon?
Yes. Cheapflights offers flight deals from Boston to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Boston to Lisbon?
Currently, February is the cheapest month in which you can book a flight from Boston to Lisbon (average of C$ 942). Flying from Boston to Lisbon in June is currently the most expensive (average of C$ 1,554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Lisbon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 September 2026.
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on 30 September 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Boston to Lisbon?
Cheapflights makes it easy to find Boston to Lisbon flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Boston to Lisbon?
Cheapflights helps you find that perfect flight to Lisbon from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Boston to Lisbon with no change fees?
Certainly. Search results for flights to Lisbon from Boston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Boston to Lisbon become cheaper?
Not ready to book yet? You can track prices for flights from Boston to Lisbon on Cheapflights with our Price Alert feature and get notified when better prices are available.
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