This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
29 Nov — 6 Dec1
Return
1 adult
Economy
Return
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 Monday and return on a Monday
Cheap flight deals from Boston to Lisbon
Enter your travel dates to find the best prices.
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Best
Direct
Last-minute
One-way
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 October 2026.
Wed 2/1219:50 -
1 stop12h 00m
Sun 6/1214:00 -
1 stop32h 50m
Deal found 28/10£505
Tue 24/1122:45 -
1 stop13h 30m
Mon 7/1223:30 -
1 stop26h 00m
Deal found 30/10£543
Thu 12/1122:20 -
Nonstop6h 35m
Tue 24/1110:00 -
1 stop15h 30m
Deal found 28/10£544
Thu 12/1122:20 -
Nonstop6h 35m
Mon 23/1123:30 -
1 stop26h 00m
Deal found 29/10£546
Mon 28/1205:45 -
1 stop23h 35m
Tue 23/212:50 -
1 stop25h 58m
Deal found 29/10£551
Thu 3/1218:00 -
Nonstop6h 35m
Mon 14/1217:00 -
Nonstop7h 55m
Deal found 28/10£552
Mon 16/1109:10 -
1 stop17h 50m
Wed 25/1111:15 -
Nonstop7h 44m
Deal found 25/10£552
Mon 16/1117:05 -
1 stop9h 55m
Wed 25/1111:15 -
Nonstop7h 44m
Deal found 26/10£553
Mon 28/1219:40 -
1 stop31h 30m
Sun 21/210:40 -
1 stop33h 13m
Deal found 29/10£554
Mon 28/1219:40 -
1 stop31h 30m
Thu 14/111:20 -
2 stops35h 22m
Deal found 27/10£555
Best flights from Boston to Lisbon
Discover carefully curated flight deals from Boston to Lisbon that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.
Wed 27/118:35 -
1 stop9h 45m
Fri 5/210:55 -
2 stops30h 26m
Deal found 28/10£553
Wed 23/1219:40 -
1 stop31h 30m
Fri 15/111:20 -
1 stop32h 33m
Deal found 26/10£589
Mon 26/417:10 -
1 stop13h 05m
Fri 7/512:45 -
Nonstop7h 25m
Deal found 28/10£601
Mon 14/1207:30 -
1 stop23h 35m
Wed 6/112:55 -
1 stop30h 25m
Deal found 29/10£627
Tue 24/1121:40 -
Nonstop6h 20m
Mon 30/1111:15 -
Nonstop7h 44m
Deal found 25/10£924
Tue 17/1106:00 -
1 stop21h 10m
Sun 22/1110:40 -
1 stop28h 08m
Deal found 29/10£557
Tue 19/120:00 -
1 stop31h 10m
Mon 19/411:25 -
1 stop32h 27m
Deal found 27/10£558
Mon 9/1109:42 -
2 stops19h 48m
Wed 18/1105:55 -
2 stops22h 53m
Deal found 29/10£656
Thu 12/1111:55 -
2 stops17h 25m
Tue 17/1111:20 -
2 stops30h 06m
Deal found 29/10£563
Sat 30/119:15 -
2 stops31h 55m
Sun 7/210:40 -
1 stop33h 13m
Deal found 28/10£565
Mon 23/1118:35 -
1 stop11h 05m
Mon 30/1112:25 -
1 stop30h 20m
Deal found 26/10£623
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 October 2026.
Sun 7/321:35 -
Nonstop6h 20m
Fri 19/310:55 -
Nonstop7h 45m
Deal found 25/10£551
Thu 3/1218:00 -
Nonstop6h 35m
Mon 14/1217:00 -
Nonstop7h 55m
Deal found 28/10£552
Wed 25/1121:40 -
Nonstop6h 20m
Wed 2/1211:15 -
Nonstop7h 44m
Deal found 26/10£553
Sun 27/1221:30 -
Nonstop6h 25m
Tue 23/211:15 -
Nonstop7h 38m
Deal found 28/10£555
Mon 28/1221:35 -
Nonstop6h 25m
Mon 22/211:15 -
Nonstop7h 38m
Deal found 29/10£558
Tue 23/221:40 -
Nonstop6h 20m
Tue 9/311:15 -
Nonstop7h 45m
Deal found 28/10£558
Mon 16/1121:40 -
Nonstop6h 20m
Wed 25/1111:15 -
Nonstop7h 44m
Deal found 29/10£560
Wed 11/1121:40 -
Nonstop6h 20m
Sun 22/1111:15 -
Nonstop7h 44m
Deal found 28/10£561
Thu 25/221:35 -
Nonstop6h 20m
Thu 4/310:35 -
Nonstop7h 45m
Deal found 28/10£561
Wed 31/323:25 -
Nonstop6h 20m
Fri 9/412:45 -
Nonstop7h 25m
Deal found 28/10£564
Sat 21/1121:40 -
Nonstop6h 20m
Tue 1/1211:15 -
Nonstop7h 44m
Deal found 25/10£576
Last-minute flights from Boston to Lisbon
Discover last-minute flight deals from Boston to Lisbon. Data last updated 30 October 2026 and is based on user searches.
Wed 4/1119:50 -
1 stop12h 00m
Tue 10/1113:55 -
1 stop32h 55m
Deal found 28/10£555
Thu 12/1122:20 -
Nonstop6h 35m
Tue 24/1110:00 -
1 stop15h 30m
Deal found 28/10£544
Thu 12/1122:20 -
Nonstop6h 35m
Mon 23/1123:30 -
1 stop26h 00m
Deal found 29/10£546
Mon 16/1117:05 -
1 stop9h 55m
Wed 25/1111:15 -
Nonstop7h 44m
Deal found 25/10£552
Sun 22/1109:10 -
1 stop17h 50m
Thu 3/1211:15 -
Nonstop7h 44m
Deal found 26/10£556
Sun 22/1120:05 -
1 stop31h 05m
Thu 3/1208:55 -
1 stop29h 53m
Deal found 29/10£557
Tue 24/1122:45 -
1 stop13h 30m
Mon 7/1223:30 -
1 stop26h 00m
Deal found 30/10£543
Wed 25/1110:25 -
1 stop15h 30m
Sun 6/1210:40 -
2 stops30h 47m
Deal found 29/10£555
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 October 2026.
Tue 29/1221:35 -
Nonstop6h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£359
Tue 29/1221:35 -
Nonstop6h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/10£363
Sun 3/117:00 -
1 stop10h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 26/10£366
Tue 23/318:30 -
3 stops32h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 27/10£369
Sat 26/1215:31 -
2 stops36h 49m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/10£381
Fri 5/321:40 -
Nonstop6h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£397
Thu 31/1221:30 -
Nonstop6h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 26/10£400
Fri 16/405:30 -
1 stop22h 50m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/10£402
Thu 24/1207:15 -
1 stop19h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/10£403
Thu 31/1215:31 -
3 stops36h 49m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 26/10£406
Wed 23/1219:40 -
1 stop31h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/10£412
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 October 2026.
Customise 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 October 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 return flight
Fastest return journey
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Wed 21/4
23:25-10:45
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£359
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Mon 28/12
21:35-09:00
Nonstop6h 25m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£363
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Tue 29/12
21:35-09:00
Nonstop6h 25m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£363
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Tue 23/3
18:30-06:55
3 stops32h 25m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£369
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Fri 19/2
21:40-09:00
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£400
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Thu 31/12
21:30-08:55
Nonstop6h 25m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£400
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Thu 31/12
15:31-09:20
3 stops36h 49m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£406
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Thu 24/12
05:45-08:10
2 stops21h 25m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£408
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Thu 24/12
20:00-23:25
1 stop22h 25m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£414
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Sun 29/11
21:35-08:55
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£430
Flights are sorted by cheapest return flights first.
Deals found on 25/10
Showing 1-10 of 22 resultsSorted by cheapest first
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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 return 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
Delays
How far ahead should I book a flight from Boston to Lisbon?
The best time to book flights from Boston to Lisbon is 14 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 £516). Flying from Boston to Lisbon in June is currently the most expensive (average of £821). 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 October 2026.
When flying from Boston to Lisbon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost for a return flight from Boston to Lisbon?
Airfare is typical for this route at the moment.
Boston to Lisbon flights typically cost between £492 and £678 in January.The cheapest return price found within the last 5 days was £504 on Icelandair (20 Jan–24 Jan).
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 have 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?
Within the past month, 3 users have taken a look at flights from Boston Logan Intl to Lisbon Humberto Delgado.
How long is the flight from Boston to Lisbon?
There are many flights that can get you from Boston to Lisbon in 9h 45m. Fly via United Airlines to get the fastest option. There are 3182 mi between Boston and Lisbon.
What are the most reliable airlines from Boston to Lisbon?
Consider JetBlue (92%), Emirates (92%) or TAP AIR PORTUGAL (92%) when booking your flight. These represent the most reliable airlines when flying from Boston to Lisbon.
Can I find deals for flights from Boston to Lisbon that include hotel bookings?
Yes. In addition to deals on Boston to Lisbon flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Boston to Lisbon?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Lisbon.
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 £516). Flying from Boston to Lisbon in June is currently the most expensive (average of £821). 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 October 2026.
Find the best flight deals on Cheapflights, where travellers 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?
Deals for Boston to Lisbon flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Boston to Lisbon?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Lisbon from Boston.
Can Cheapflights find flights from Boston to Lisbon with no change fees?
Need flexible booking options for your flight to Lisbon from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
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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