$318+ Cheap flights from Boston (BOS) to Lisbon (LIS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Sep 13 — Sep 201
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Lisbon with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Tuesday or Monday and return on a Thursday
Cheap flight deals from Boston to Lisbon
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to LisbonExplore 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 August 14, 2026.
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 August 14, 2026.
This Mytrip deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:35 am -
2 stops26h 45m
Sun 11/299:05 pm -
2 stops26h 50m
Deal found 8/13![Multiple Airlines logo]()
$634
This Gotogate deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:05 pm -
Nonstop6h 35m
Mon 10/265:00 pm -
Nonstop7h 55m
Deal found 8/14![TAP AIR PORTUGAL logo]()
$635
This FlightHub deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:45 am -
1 stop22h 35m
Wed 12/1611:20 am -
1 stop27h 52m
Deal found 8/13![Multiple Airlines logo]()
$637
This Mytrip deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:50 pm -
3 stops19h 35m
Sat 11/76:10 am -
2 stops16h 40m
Deal found 8/11![Multiple Airlines logo]()
$638
This Booking.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:45 am -
1 stop22h 35m
Mon 12/711:20 am -
1 stop27h 57m
Deal found 8/11![Multiple Airlines logo]()
$639
This Mytrip deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:30 am -
2 stops30h 25m
Sun 11/299:05 pm -
2 stops26h 50m
Deal found 8/13![Multiple Airlines logo]()
$640
This Gotogate deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:05 pm -
Nonstop6h 35m
Sun 11/155:00 pm -
Nonstop7h 55m
Deal found 8/11![TAP AIR PORTUGAL logo]()
$641
This Cheapflightsfares deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:10 pm -
Nonstop6h 35m
Wed 11/1111:40 am -
Nonstop8h 00m
Deal found 8/11![TAP AIR PORTUGAL logo]()
$642
This Gotogate deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:35 pm -
1 stop12h 45m
Sun 11/1510:40 am -
1 stop15h 48m
Deal found 8/11![Multiple Airlines logo]()
$643
This Icelandair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:50 pm -
1 stop12h 00m
Sun 11/222:00 pm -
1 stop32h 50m
Deal found 8/11![Icelandair logo]()
$644
This LEVEL deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:55 pm -
1 stop16h 40m
Tue 9/297:10 pm -
1 stop30h 55m
Deal found 8/10![LEVEL logo]()
$645
This Gotogate deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:00 pm -
1 stop17h 20m
Thu 9/310:20 pm -
1 stop25h 30m
Deal found 8/10![Icelandair logo]()
$646
Best flights from Boston to LisbonDiscover 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 August 14, 2026.
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 August 14, 2026.
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:40 pm -
Nonstop6h 20m
Tue 12/111:15 am -
Nonstop7h 44m
Deal found 8/13![Delta logo]()
$664
This Virgin Atlantic deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:35 pm -
1 stop13h 25m
Sun 11/1511:15 am -
Nonstop7h 44m
Deal found 8/14![Virgin Atlantic logo]()
$668
This KLM deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:00 pm -
1 stop10h 00m
Sun 11/1511:15 am -
Nonstop7h 44m
Deal found 8/14![KLM logo]()
$668
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:05 pm -
1 stop9h 05m
Sun 12/612:20 pm -
2 stops16h 02m
Deal found 8/14![United Airlines logo]()
$669
This British Airways deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:08 am -
1 stop16h 57m
Mon 11/166:30 am -
2 stops15h 27m
Deal found 8/11![Multiple Airlines logo]()
$678
This British Airways deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/249:25 pm -
1 stop12h 25m
Wed 1/63:50 pm -
1 stop32h 50m
Deal found 8/14![British Airways logo]()
$758
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:41 pm -
2 stops13h 24m
Sun 11/2210:15 am -
2 stops18h 44m
Deal found 8/13![United Airlines logo]()
$683
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/289:35 pm -
Nonstop6h 25m
Mon 1/411:15 am -
Nonstop7h 40m
Deal found 8/12![Delta logo]()
$694
This KLM deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:25 pm -
Nonstop6h 20m
Mon 9/1412:45 pm -
Nonstop7h 35m
Deal found 8/13![KLM logo]()
$724
This KLM deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:10 pm -
1 stop13h 05m
Mon 9/1412:45 pm -
Nonstop7h 35m
Deal found 8/10![Multiple Airlines logo]()
$743
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/256:25 pm -
1 stop15h 45m
Wed 1/65:00 am -
1 stop19h 01m
Deal found 8/14![Delta logo]()
$724
Last-minute flights from Boston to LisbonDiscover last-minute flight deals from Boston to Lisbon. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Lisbon. Data last updated August 14, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:00 pm -
1 stop17h 20m
Thu 9/310:20 pm -
1 stop25h 30m
Deal found 8/10![Icelandair logo]()
$646
This Gotogate deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:05 pm -
Nonstop6h 35m
Mon 10/265:00 pm -
Nonstop7h 55m
Deal found 8/14![TAP AIR PORTUGAL logo]()
$635
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:50 am -
2 stops24h 55m
Wed 9/307:25 am -
2 stops15h 42m
Deal found 8/14![Multiple Airlines logo]()
$660
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:55 pm -
1 stop14h 50m
Sun 10/182:00 pm -
1 stop12h 45m
Deal found 8/11![Multiple Airlines logo]()
$664
This LEVEL deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:55 pm -
1 stop16h 40m
Tue 9/297:10 pm -
1 stop30h 55m
Deal found 8/10![LEVEL logo]()
$645
This LEVEL deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:55 pm -
1 stop16h 40m
Wed 9/307:10 pm -
1 stop30h 55m
Deal found 8/12![LEVEL logo]()
$651
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:50 pm -
2 stops18h 20m
Sun 10/182:00 pm -
1 stop12h 45m
Deal found 8/11![Multiple Airlines logo]()
$642
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:45 pm -
Nonstop6h 35m
Thu 10/225:40 pm -
Nonstop7h 40m
Deal found 8/11![TAP AIR PORTUGAL logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:55 pm -
1 stop13h 15m
Sun 10/182:00 pm -
1 stop12h 45m
Deal found 8/11![LEVEL logo]()
$667
One-way flights from Boston to LisbonSearch for one-way flight options from Boston to Lisbon. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
Search for one-way flight options from Boston to Lisbon. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
This SmartFares deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:45 pm -
Nonstop6h 35m
Deal found 8/10![TAP AIR PORTUGAL logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:25 pm -
2 stops17h 15m
Deal found 8/13![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:50 pm -
2 stops19h 20m
Deal found 8/14![Multiple Airlines logo]()
$320
This Mytrip deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:50 pm -
2 stops19h 20m
Deal found 8/12![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:35 pm -
1 stop27h 55m
Deal found 8/11![LEVEL logo]()
$322
This Mytrip deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/278:50 pm -
2 stops21h 25m
Deal found 8/12![Multiple Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:00 pm -
2 stops29h 00m
Deal found 8/10![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:55 pm -
1 stop13h 15m
Deal found 8/12![LEVEL logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:50 pm -
2 stops19h 15m
Deal found 8/13![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:35 pm -
1 stop13h 50m
Deal found 8/11![LEVEL logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:50 pm -
2 stops19h 00m
Deal found 8/11![Multiple Airlines logo]()
$329
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 August 14, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $634 (Mytrip) |
One-way from | $318 (SmartFares) |
Popular in | June |
Cheapest in | February |
Average price | $886 |
Good round-trip deal | $672 or less |
Good one-way deal | $384 or less |
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated August 14, 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
Cheapest round-trip
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Tue 11/17
9:40 pm-9:00 am
Nonstop6h 20m
Lisbon Humberto Delgado
Tue 12/1
11:15 am-1:59 pm
Nonstop7h 44m
$664
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Tue 11/10
1:35 pm-8:00 am
1 stop13h 25m
Lisbon Humberto Delgado
Sun 11/15
11:15 am-1:59 pm
Nonstop7h 44m
$668
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Tue 11/10
5:00 pm-8:00 am
1 stop10h 00m
Lisbon Humberto Delgado
Sun 11/15
11:15 am-1:59 pm
Nonstop7h 44m
$668
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Wed 11/25
6:05 pm-8:10 am
1 stop9h 05m
Lisbon Humberto Delgado
Sun 12/6
12:20 pm-11:22 pm
2 stops16h 02m
$669
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Thu 11/12
11:08 am-9:05 am
1 stop16h 57m
Lisbon Humberto Delgado
Mon 11/16
6:30 am-4:57 pm
2 stops15h 27m
$678
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Tue 11/17
3:41 pm-10:05 am
2 stops13h 24m
Lisbon Humberto Delgado
Sun 11/22
10:15 am-11:59 pm
2 stops18h 44m
$683
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Mon 12/28
9:35 pm-9:00 am
Nonstop6h 25m
Lisbon Humberto Delgado
Mon 1/4
11:15 am-1:55 pm
Nonstop7h 40m
$694
Quickest round-trip
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Mon 9/7
11:25 pm-10:45 am
Nonstop6h 20m
Lisbon Humberto Delgado
Mon 9/14
12:45 pm-3:20 pm
Nonstop7h 35m
$724
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Fri 12/25
6:25 pm-3:10 pm
1 stop15h 45m
Lisbon Humberto Delgado
Wed 1/6
5:00 am-7:01 pm
1 stop19h 01m
$724
BostonLisbon
BOS Boston Logan Intl - LIS Lisbon Humberto Delgado
BOSLIS
Boston Logan Intl
Thu 9/10
5:10 pm-11:15 am
1 stop13h 05m
Lisbon Humberto Delgado
Mon 9/14
12:45 pm-3:20 pm
Nonstop7h 35m
$743
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Boston to Lisbon
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Lisbon in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Lisbon flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boston-Lisbon flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Boston-Lisbon flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Lisbon flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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
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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 $642). Flying from Boston to Lisbon in June is currently the most expensive (average of $1,092). 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 August 14, 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 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 139 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 last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 15% of flights being delayed.
What’s the top layover airport for flights from Boston to Lisbon?
Share of 1-stop round-trip flights from Boston to Lisbon chosen by Cheapflights users in the past 12 months, using the same layover each way.
Dublin (DUB) – chosen by Cheapflights users on 43% of 1-stop itineraries from Boston to Lisbon on Cheapflights.
What’s the cheapest layover airport for flights from Boston to Lisbon?
Average round-trip fare for 1-stop flights from Boston to Lisbon, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Madrid (MAD) is the most affordable 1-stop option, with an average round-trip price of $483.
What’s the fastest layover option from Boston to Lisbon?
Shortest average travel time for 1-stop one-way flights from Boston to Lisbon, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Madrid (MAD) have the shortest average one-way travel time for 1-stop routes: 9h 45m.
Which airport typically offers the quickest layover for flights from Boston to Lisbon?
Average layover duration for 1-stop one-way flights from Boston to Lisbon, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Madrid (MAD) offer the fastest connection on this route, with an average layover time of 3h 53m.
The best insider tips for Boston to Lisbon flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Lisbon trip
Our travel experts
Reviews of airlines servicing Lisbon
Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated August 14, 2026.
Peruse reviews from past customers who have flown with Delta,Air France, andVirgin Atlantic from Boston to Lisbon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Crew
8.5
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
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.
Traveling to a place near Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsFátima
Ericeira
Oeiras
Beja
Torres Vedras
Nazaré
Colares
Sesimbra
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Top 10 airlines flying from Boston to Lisbon
Discover the top 10 airlines that operate flights from Boston to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$870 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$351 | Average$639 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$353 | Average$579 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$391 | Average$833 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$396 | Average$468 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$402 | Average$646 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$408 | Average$528 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$412 | Average$702 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$437 | Average$613 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$475 | Average$666 | FlexibilityNo cancel fee | On-time77% |