This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BOS
8 Oct — 15 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Boston Logan Intl are usually found in October or March, booked 35 days in advance, depart on a Monday or Tuesday and return on a Monday
Cheap flight deals from Lisbon to Boston
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Lisbon to Boston
Explore the most affordable flight options available from Lisbon to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.
Wed 23/921:15 -
1 stop28h 50m
Wed 21/1022:55 -
1 stop28h 35m
Deal found 7/9£384
Mon 19/1006:35 -
1 stop18h 10m
Mon 26/1022:30 -
1 stop16h 20m
Deal found 4/9£384
Sat 21/1106:30 -
1 stop16h 55m
Sat 28/1119:15 -
1 stop11h 50m
Deal found 8/9£385
Sat 21/1117:00 -
Nonstop7h 55m
Sat 12/1222:10 -
Nonstop6h 35m
Deal found 8/9£386
Wed 7/1019:10 -
1 stop30h 55m
Wed 14/1022:55 -
1 stop14h 30m
Deal found 7/9£388
Tue 22/921:15 -
1 stop28h 50m
Wed 30/922:55 -
1 stop28h 35m
Deal found 7/9£389
Tue 24/1106:30 -
2 stops22h 17m
Fri 4/1219:15 -
1 stop14h 40m
Deal found 4/9£392
Tue 24/1106:30 -
2 stops22h 17m
Tue 29/1219:15 -
1 stop11h 50m
Deal found 8/9£392
Wed 7/1020:45 -
1 stop24h 25m
Tue 13/1007:25 -
1 stop10h 45m
Deal found 7/9£393
Thu 1/1005:00 -
1 stop13h 15m
Sat 10/1017:10 -
1 stop10h 40m
Deal found 3/9£395
Wed 14/1005:00 -
1 stop13h 15m
Wed 11/1116:55 -
1 stop13h 25m
Deal found 7/9£396
Thu 10/1205:00 -
1 stop14h 20m
Mon 11/118:20 -
1 stop12h 05m
Deal found 7/9£397
Best flights from Lisbon to Boston
Discover carefully curated flight deals from Lisbon to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.
Sat 21/1106:30 -
1 stop16h 55m
Sat 28/1119:15 -
1 stop11h 50m
Deal found 7/9£385
Tue 6/1005:00 -
1 stop13h 15m
Tue 13/1023:25 -
Nonstop6h 20m
Deal found 6/9£399
Wed 25/1105:00 -
1 stop14h 13m
Tue 29/1221:35 -
Nonstop6h 25m
Deal found 4/9£399
Mon 2/1107:05 -
1 stop17h 35m
Sun 8/1107:30 -
1 stop21h 15m
Deal found 8/9£408
Tue 24/1106:30 -
2 stops22h 17m
Tue 12/118:45 -
1 stop12h 20m
Deal found 8/9£392
Sat 3/1012:15 -
1 stop12h 35m
Sat 10/1023:25 -
Nonstop6h 20m
Deal found 3/9£403
Wed 2/1211:15 -
Nonstop7h 44m
Wed 30/1221:20 -
Nonstop6h 20m
Deal found 4/9£411
Wed 14/1018:45 -
1 stop32h 50m
Fri 23/1009:30 -
1 stop18h 35m
Deal found 7/9£412
Tue 24/1106:30 -
2 stops22h 17m
Fri 8/120:00 -
1 stop15h 05m
Deal found 8/9£398
Tue 6/1012:45 -
Nonstop7h 43m
Tue 13/1023:25 -
Nonstop6h 20m
Deal found 6/9£412
Sat 21/1111:15 -
Nonstop7h 44m
Fri 8/118:20 -
1 stop12h 05m
Deal found 4/9£409
Direct flights from Lisbon to Boston
Explore direct flight options from Lisbon to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.
Sat 21/1117:00 -
Nonstop7h 55m
Sat 12/1222:10 -
Nonstop6h 35m
Deal found 8/9£386
Sat 3/1012:45 -
Nonstop7h 43m
Sat 10/1023:25 -
Nonstop6h 20m
Deal found 3/9£411
Thu 1/1012:45 -
Nonstop7h 43m
Sat 10/1023:25 -
Nonstop6h 20m
Deal found 3/9£412
Thu 1/1012:45 -
Nonstop7h 43m
Mon 12/1023:25 -
Nonstop6h 20m
Deal found 8/9£412
Thu 1/1012:45 -
Nonstop7h 43m
Sat 10/1023:25 -
Nonstop6h 20m
Deal found 4/9£414
Wed 7/1012:45 -
Nonstop7h 43m
Wed 4/1121:40 -
Nonstop6h 20m
Deal found 7/9£502
Fri 16/1012:45 -
Nonstop7h 43m
Fri 13/1121:40 -
Nonstop6h 20m
Deal found 6/9£511
Mon 5/1012:45 -
Nonstop7h 43m
Mon 12/1023:25 -
Nonstop6h 20m
Deal found 7/9£515
Tue 20/1012:45 -
Nonstop7h 43m
Tue 10/1121:40 -
Nonstop6h 20m
Deal found 6/9£541
Sat 24/1012:45 -
Nonstop7h 43m
Mon 26/1022:40 -
Nonstop6h 20m
Deal found 6/9£550
Fri 18/912:45 -
Nonstop7h 35m
Thu 15/1023:25 -
Nonstop6h 20m
Deal found 3/9£573
Tue 22/912:45 -
Nonstop7h 35m
Tue 29/923:25 -
Nonstop6h 20m
Deal found 7/9£574
Last-minute flights from Lisbon to Boston
Discover last-minute flight deals from Lisbon to Boston. Data last updated 8 September 2026 and is based on user searches.
Tue 22/921:15 -
1 stop28h 50m
Wed 30/922:55 -
1 stop28h 35m
Deal found 7/9£389
Wed 23/921:15 -
1 stop28h 50m
Wed 21/1022:55 -
1 stop28h 35m
Deal found 7/9£384
Thu 1/1005:00 -
1 stop13h 15m
Sat 10/1017:10 -
1 stop10h 40m
Deal found 3/9£395
Wed 7/1019:10 -
1 stop30h 55m
Wed 14/1022:55 -
1 stop14h 30m
Deal found 7/9£388
Wed 7/1020:45 -
1 stop24h 25m
Tue 13/1007:25 -
1 stop10h 45m
Deal found 7/9£393
Wed 14/1005:00 -
1 stop13h 15m
Wed 11/1116:55 -
1 stop13h 25m
Deal found 7/9£396
Thu 15/1005:00 -
1 stop13h 15m
Thu 22/1023:25 -
Nonstop6h 20m
Deal found 7/9£399
Thu 15/1005:00 -
1 stop16h 36m
Wed 21/1018:55 -
1 stop11h 00m
Deal found 3/9£400
Mon 19/1006:35 -
1 stop18h 10m
Mon 26/1022:30 -
1 stop16h 20m
Deal found 4/9£384
Fri 23/1006:35 -
1 stop17h 35m
Mon 26/1022:30 -
1 stop16h 20m
Deal found 7/9£385
One-way flights from Lisbon to Boston
Search for one-way flight options from Lisbon to Boston. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.
Wed 30/909:10 -
1 stop16h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£392
Tue 1/1211:40 -
Nonstop8h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 3/9£403
Thu 3/1211:40 -
Nonstop8h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£403
Sun 4/1014:00 -
1 stop12h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/9£413
Wed 30/912:00 -
Nonstop7h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/9£429
Thu 4/311:40 -
Nonstop8h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£429
Tue 3/1111:40 -
Nonstop8h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/9£430
Sun 11/1023:45 -
1 stop25h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£437
Tue 15/917:40 -
Nonstop7h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/9£471
Sun 18/1006:35 -
1 stop14h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/9£483
Wed 2/1211:15 -
Nonstop7h 44m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 3/9£511
Find flight deals from Lisbon to Boston
Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to Boston (BOS). 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 8 September 2026.
Customise your flight search to find flights from Lisbon to Boston 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 8 September 2026.
Use the filters below to find and compare flights from Lisbon to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Sat 21/11
06:30-18:25
1 stop16h 55m
Boston Logan Intl
Sat 28/11
19:15-12:05
1 stop11h 50m
£385
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Tue 24/11
06:30-23:47
2 stops22h 17m
Boston Logan Intl
Tue 12/1
18:45-12:05
1 stop12h 20m
£392
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Tue 24/11
06:30-23:47
2 stops22h 17m
Boston Logan Intl
Fri 8/1
20:00-16:05
1 stop15h 05m
£398
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Tue 6/10
05:00-13:15
1 stop13h 15m
Boston Logan Intl
Tue 13/10
23:25-10:45
Nonstop6h 20m
£399
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Wed 25/11
05:00-14:13
1 stop14h 13m
Boston Logan Intl
Tue 29/12
21:35-09:00
Nonstop6h 25m
£399
Fastest return journey
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Mon 30/11
17:00-19:55
Nonstop7h 55m
Boston Logan Intl
Wed 31/12
00:00-06:00
Nonstop0h 00m
£403
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Sat 5/12
11:40-14:40
Nonstop8h 00m
Boston Logan Intl
Wed 31/12
00:00-06:00
Nonstop0h 00m
£403
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Fri 12/2
11:40-14:40
Nonstop8h 00m
Boston Logan Intl
Wed 31/12
00:00-06:00
Nonstop0h 00m
£403
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Thu 26/11
17:00-19:55
Nonstop7h 55m
Boston Logan Intl
Wed 31/12
00:00-06:00
Nonstop0h 00m
£403
LisbonBoston
LIS Lisbon Humberto Delgado - BOS Boston Logan Intl
LISBOS
Lisbon Humberto Delgado
Sun 15/11
11:40-14:40
Nonstop8h 00m
Boston Logan Intl
Wed 31/12
00:00-06:00
Nonstop0h 00m
£403
Flights are sorted by cheapest return flights first.
Deals found on 3/9
Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
Best time to book a flight from Lisbon to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Lisbon with our price prediction graph.
LIS-BOS
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 Lisbon to Boston
Prices
Airlines
Delays
How far ahead should I book a flight from Lisbon to Boston?
Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from Lisbon to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Lisbon to Boston?
Currently, October is the cheapest month in which you can book a flight from Lisbon to Boston (average of £436). Flying from Lisbon to Boston in July is currently the most expensive (average of £687). 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 LIS to BOS?
Find hourly flight availability from Lisbon to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 September 2026.
When flying from Lisbon to Boston, 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 Lisbon to Boston?
Airfare is below average for this route at the moment.
Lisbon to Boston flights typically cost between £392 and £551 in September.The cheapest return price found within the last 5 days was £384 on LEVEL (23 Sept–21 Oct).
Weekly flight availability from Lisbon to Boston
Explore weekly flight availability from Lisbon to Boston. 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 8 September 2026.
The most flights from LIS to BOS are scheduled on a Monday (10 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (5 on average).
How often are flights from Lisbon to Boston delayed?
About 21% of weekly flights between Lisbon and Boston have experienced delays in the past year, with the average delay time being 128 minutes.
What is the most punctual flight time for Lisbon to Boston flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Lisbon to Boston flights?
Over the past year, Delta have had the lowest number of delays on this route, with just 17% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Lisbon to Boston. 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 Lisbon to Boston flight route?
Flights from Lisbon Humberto Delgado to Boston Logan Intl have been viewed 1 times in the past calendar month.
What are the most reliable airlines from Lisbon to Boston?
Before booking your flight to Boston from Lisbon, check out the most reliable airlines to get you to your destination on time: JetBlue (80%), TAP AIR PORTUGAL (80%), airBaltic( 66%).
Can I find deals for flights from Lisbon to Boston that include hotel bookings?
Yes. In addition to deals on Lisbon to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Lisbon to Boston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lisbon to Boston.
Can I find deals for business class flights from Lisbon to Boston?
Yes. Cheapflights offers flight deals from Lisbon to Boston 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 Lisbon to Boston?
Currently, October is the cheapest month in which you can book a flight from Lisbon to Boston (average of £436). Flying from Lisbon to Boston in July is currently the most expensive (average of £687). 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.
Book flights to Boston if you plan to visit one of these locations
Burlington
Canton
North Truro
Waltham
Warwick
Cambridge
Wellfleet
Peabody
Revere
Somerville
Quincy
Chelmsford
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Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 September 2026.
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How does Cheapflights help users find flights from Lisbon to Boston?
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Why should you use Cheapflights to find cheap flight tickets from Lisbon to Boston?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Lisbon to Boston.
Can Cheapflights find flights from Lisbon to Boston with no change fees?
Need flexible booking options for your flight to Boston from Lisbon? 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 Lisbon to Boston become cheaper?
Yes! Start tracking prices for Lisbon to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.
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