This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
8 Oct — 15 Oct1
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 November, booked 15 days in advance, depart on a Monday or Friday 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 8 September 2026.
Thu 3/1217:31 -
1 stop10h 34m
Wed 9/1206:30 -
2 stops15h 27m
Deal found 6/9£510
Sat 24/1018:05 -
Nonstop6h 35m
Mon 2/1123:30 -
1 stop26h 15m
Deal found 5/9£511
Wed 11/1110:40 -
1 stop15h 15m
Tue 17/1112:50 -
2 stops35h 07m
Deal found 7/9£511
Sat 17/1020:25 -
1 stop30h 55m
Fri 20/1111:20 -
1 stop27h 43m
Deal found 4/9£513
Wed 14/1005:45 -
1 stop23h 45m
Sun 22/1110:40 -
1 stop33h 13m
Deal found 7/9£514
Tue 27/1015:41 -
2 stops14h 24m
Tue 17/1112:50 -
2 stops35h 07m
Deal found 6/9£516
Sat 17/1023:25 -
Nonstop6h 20m
Mon 16/1111:15 -
Nonstop7h 44m
Deal found 7/9£517
Wed 14/1005:45 -
1 stop23h 45m
Mon 16/1111:20 -
1 stop28h 02m
Deal found 5/9£517
Sat 24/1012:36 -
1 stop15h 34m
Mon 2/1115:35 -
1 stop33h 45m
Deal found 5/9£518
Fri 6/1119:05 -
2 stops32h 50m
Sun 13/1210:40 -
2 stops28h 59m
Deal found 6/9£519
Wed 4/1107:31 -
2 stops21h 49m
Sun 8/1110:50 -
2 stops30h 56m
Deal found 3/9£519
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 8 September 2026.
Wed 2/1221:20 -
Nonstop6h 20m
Wed 9/1211:15 -
Nonstop7h 44m
Deal found 7/9£517
Thu 5/1109:30 -
1 stop19h 50m
Mon 9/1111:50 -
1 stop13h 30m
Deal found 7/9£520
Tue 27/1020:05 -
2 stops30h 50m
Thu 5/1108:55 -
1 stop17h 33m
Deal found 4/9£525
Sun 29/1118:00 -
Nonstop6h 35m
Thu 3/1211:40 -
Nonstop8h 00m
Deal found 7/9£691
Sun 20/906:05 -
2 stops28h 10m
Fri 25/911:35 -
2 stops16h 35m
Deal found 3/9£853
Tue 20/1020:50 -
2 stops19h 30m
Tue 17/1112:50 -
2 stops34h 00m
Deal found 6/9£955
Fri 18/923:25 -
Nonstop6h 20m
Sun 27/912:45 -
Nonstop7h 35m
Deal found 3/9£966
Sat 13/205:30 -
1 stop22h 10m
Sat 20/211:20 -
1 stop27h 52m
Deal found 4/9£528
Thu 12/1114:40 -
2 stops12h 30m
Mon 16/1111:20 -
1 stop11h 38m
Deal found 6/9£529
Tue 17/1114:40 -
2 stops12h 30m
Sun 22/1110:15 -
2 stops18h 44m
Deal found 3/9£531
Thu 22/1015:35 -
1 stop12h 45m
Tue 27/1006:05 -
1 stop17h 30m
Deal found 4/9£545
Wed 16/1212:00 -
2 stops13h 55m
Thu 7/108:55 -
2 stops17h 59m
Deal found 7/9£576
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 8 September 2026.
Sun 18/1023:25 -
Nonstop6h 20m
Sat 21/1111:15 -
Nonstop7h 44m
Deal found 3/9£515
Sat 17/1023:25 -
Nonstop6h 20m
Mon 16/1111:15 -
Nonstop7h 44m
Deal found 7/9£517
Thu 29/1022:35 -
Nonstop6h 20m
Thu 5/1111:15 -
Nonstop7h 44m
Deal found 7/9£528
Tue 23/221:40 -
Nonstop6h 20m
Thu 4/310:35 -
Nonstop7h 45m
Deal found 7/9£532
Thu 15/1023:25 -
Nonstop6h 20m
Mon 19/1012:45 -
Nonstop7h 43m
Deal found 3/9£536
Thu 24/1221:30 -
Nonstop6h 25m
Tue 29/1211:15 -
Nonstop7h 44m
Deal found 7/9£538
Thu 15/1023:25 -
Nonstop6h 20m
Fri 23/1012:45 -
Nonstop7h 43m
Deal found 7/9£539
Sat 24/1022:40 -
Nonstop6h 20m
Mon 2/1111:15 -
Nonstop7h 44m
Deal found 7/9£539
Tue 23/221:40 -
Nonstop6h 20m
Sun 7/311:15 -
Nonstop7h 45m
Deal found 7/9£542
Sat 13/222:10 -
Nonstop6h 35m
Fri 19/211:40 -
Nonstop8h 00m
Deal found 6/9£543
Last-minute flights from Boston to Lisbon
Discover last-minute flight deals from Boston to Lisbon. Data last updated 8 September 2026 and is based on user searches.
Wed 14/1005:45 -
1 stop23h 45m
Sun 22/1110:40 -
1 stop33h 13m
Deal found 7/9£514
Wed 14/1005:45 -
1 stop23h 45m
Mon 16/1111:20 -
1 stop28h 02m
Deal found 5/9£517
Thu 15/1018:50 -
1 stop9h 30m
Sun 22/1110:40 -
1 stop28h 23m
Deal found 7/9£522
Sat 17/1020:25 -
1 stop30h 55m
Fri 20/1111:20 -
1 stop27h 43m
Deal found 4/9£513
Sat 17/1023:25 -
Nonstop6h 20m
Mon 16/1111:15 -
Nonstop7h 44m
Deal found 7/9£517
Sun 18/1010:40 -
1 stop17h 40m
Tue 17/1112:50 -
2 stops28h 56m
Deal found 4/9£511
Tue 20/1009:10 -
1 stop17h 50m
Sun 15/1111:15 -
Nonstop7h 44m
Deal found 7/9£520
Sat 24/1018:05 -
Nonstop6h 35m
Mon 2/1123:30 -
1 stop26h 15m
Deal found 5/9£511
Sat 24/1012:36 -
1 stop15h 34m
Mon 2/1115:35 -
1 stop33h 45m
Deal found 5/9£518
Sat 24/1006:00 -
1 stop22h 10m
Mon 2/1110:15 -
1 stop26h 28m
Deal found 3/9£521
Tue 27/1015:41 -
2 stops14h 24m
Tue 17/1112:50 -
2 stops35h 07m
Deal found 7/9£516
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 8 September 2026.
Thu 3/1219:10 -
1 stop17h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£247
Sun 11/1023:35 -
1 stop27h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/9£252
Thu 15/1022:55 -
1 stop13h 15m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£256
Wed 23/922:55 -
1 stop28h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£261
Sat 7/1118:45 -
1 stop22h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/9£270
Sun 13/923:35 -
1 stop27h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/9£273
Wed 16/922:55 -
1 stop28h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/9£278
Thu 1/1022:55 -
1 stop17h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/9£283
Sun 20/923:35 -
1 stop16h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 3/9£290
Thu 15/1022:55 -
1 stop14h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/9£293
Wed 7/1023:25 -
Nonstop6h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£306
Tue 20/1018:50 -
1 stop9h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£308
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 8 September 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 8 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 return flight
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Thu 3/12
19:10-18:05
1 stop17h 55m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£247
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Sun 13/9
23:35-08:30
1 stop27h 55m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£273
Fastest return journey
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Mon 5/10
23:25-10:45
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£306
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Sun 4/10
23:25-10:45
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£306
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Wed 4/11
21:40-09:00
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£306
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Tue 20/10
14:15-08:20
2 stops13h 05m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£309
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Mon 5/10
12:45-11:00
1 stop17h 15m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£312
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Sat 17/10
23:25-10:45
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£343
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Sat 10/10
23:25-10:45
Nonstop6h 20m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£350
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Fri 9/10
09:30-10:30
1 stop20h 00m
Lisbon Humberto Delgado
Wed 31/12
00:00-18:00
Nonstop0h 00m
£353
Flights are sorted by cheapest return flights first.
Deals found on 7/9
Showing 1-10 of 24 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 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
Airlines
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 £483). Flying from Boston to Lisbon in June is currently the most expensive (average of £809). 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 8 September 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 below average for this route at the moment.
Boston to Lisbon flights typically cost between £572 and £814 in December.The cheapest return price found within the last 5 days was £510 on Multiple Airlines (3 Dec–9 Dec).
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 8 September 2026.
The most flights from BOS to LIS are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).
How often are flights from Boston to Lisbon delayed?
About 16% of weekly flights between Boston and Lisbon have experienced delays in the past year, with the average delay time being 140 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 15% 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, 4 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 6h 20m. Fly via Delta or United Airlines to get the fastest option. There are 3182 mi between Boston and Lisbon. This flight may include one or multiple stops.
What are the most reliable airlines from Boston to Lisbon?
Consider Emirates (77%), JetBlue (73%) or TAP AIR PORTUGAL (73%) 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 £483). Flying from Boston to Lisbon in June is currently the most expensive (average of £809). 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 8 September 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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