$299+ Cheap flights from Maine to Portugal
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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Jun 11 — Jun 181
Round-trip
1 adult, Economy
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Find cheap flights from Maine to Portugal with Cheapflights
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Cheapest flights from Maine to PortugalExplore the most affordable flight options available from Maine to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
Explore the most affordable flight options available from Maine to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
This oojo deal was found by Cheapflights users on 5/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Mon 11/162:55 pm
TER
- BOS
1 stop33h 50m
TAP AIR PORTUGAL
Deal found 5/8![TAP AIR PORTUGAL logo]()
$601
This oojo deal was found by Cheapflights users on 5/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 pm
BOS
- TER
1 stop25h 15m
TAP AIR PORTUGAL
Tue 11/1711:50 am
TER
- BOS
1 stop30h 50m
TAP AIR PORTUGAL
Deal found 5/8![TAP AIR PORTUGAL logo]()
$613
This oojo deal was found by Cheapflights users on 5/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Mon 11/166:40 am
TER
- BOS
1 stop12h 00m
TAP AIR PORTUGAL
Deal found 5/8![TAP AIR PORTUGAL logo]()
$626
This oojo deal was found by Cheapflights users on 5/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 pm
BOS
- TER
1 stop13h 00m
TAP AIR PORTUGAL
Sun 11/1511:50 am
TER
- BOS
1 stop30h 50m
TAP AIR PORTUGAL
Deal found 5/7![TAP AIR PORTUGAL logo]()
$633
This Cheapflightsfares deal was found by Cheapflights users on 5/8. 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 11/99:25 pm
BOS
- TER
Nonstop4h 55m
Azores Airlines
Tue 11/175:50 pm
TER
- BOS
Nonstop6h 10m
Azores Airlines
Deal found 5/8![Azores Airlines logo]()
$640
This Booking.com deal was found by Cheapflights users on 5/8. 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.
Mon 11/96:00 pm
BOS
- TER
1 stop13h 00m
Multiple Airlines
Tue 11/175:50 pm
TER
- BOS
Nonstop6h 10m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$642
This Booking.com deal was found by Cheapflights users on 5/8. 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.
Wed 11/116:00 pm
BOS
- TER
1 stop13h 00m
Multiple Airlines
Tue 11/175:50 pm
TER
- BOS
Nonstop6h 10m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$643
This KLM deal was found by Cheapflights users on 5/7. 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.
Fri 10/303:34 pm
BOS
- OPO
1 stop12h 31m
KLM
Thu 11/511:00 am
OPO
- BOS
1 stop16h 26m
KLM
Deal found 5/7![KLM logo]()
$646
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:45 am
BOS
- OPO
1 stop20h 15m
United Airlines
Wed 8/192:25 pm
OPO
- BOS
1 stop24h 25m
United Airlines
Deal found 5/11![United Airlines logo]()
$648
This FlightHub deal was found by Cheapflights users on 5/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:45 am
BOS
- OPO
1 stop20h 15m
Multiple Airlines
Fri 9/48:40 am
OPO
- BOS
1 stop11h 30m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$649
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/155:40 pm
BOS
- OPO
1 stop18h 25m
Scandinavian Airlines
Fri 8/215:55 pm
OPO
- BOS
1 stop26h 40m
Scandinavian Airlines
Deal found 5/11![Scandinavian Airlines logo]()
$650
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am
BOS
- OPO
2 stops22h 30m
United Airlines
Mon 11/2312:35 pm
OPO
- BOS
2 stops25h 49m
United Airlines
Deal found 5/11![United Airlines logo]()
$651
Best flights from Maine to PortugalDiscover carefully curated flight deals from Maine to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
Discover carefully curated flight deals from Maine to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
This LEVEL deal was found by Cheapflights users on 5/9. 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.
Mon 6/2910:50 pm
BOS
- OPO
1 stop17h 30m
LEVEL
Wed 7/810:00 pm
OPO
- BOS
1 stop28h 45m
LEVEL
Deal found 5/9![LEVEL logo]()
$659
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:50 pm
BOS
- OPO
1 stop31h 10m
United Airlines
Tue 8/2512:15 pm
OPO
- BOS
2 stops29h 32m
United Airlines
Deal found 5/11![United Airlines logo]()
$675
This Rumbo deal was found by Cheapflights users on 5/7. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Tue 5/266:05 pm
TER
- BOS
Nonstop5h 45m
Azores Airlines
Deal found 5/7![Azores Airlines logo]()
$684
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:05 pm
BOS
- OPO
1 stop12h 25m
Delta
Thu 8/275:00 am
OPO
- BOS
2 stops19h 15m
Delta
Deal found 5/11![Delta logo]()
$731
This Bravofly deal was found by Cheapflights users on 5/10. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/69:15 pm
BOS
- SJZ
2 stops9h 15m
Multiple Airlines
Fri 6/123:35 pm
SJZ
- BOS
2 stops32h 15m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$763
This Virgin Atlantic deal was found by Cheapflights users on 5/11. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:20 pm
BOS
- LIS
Nonstop6h 25m
Virgin Atlantic
Sun 8/3012:45 pm
LIS
- BOS
Nonstop7h 30m
Virgin Atlantic
Deal found 5/11![Virgin Atlantic logo]()
$851
This Cheapflightsfares deal was found by Cheapflights users on 5/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Wed 8/197:15 am
TER
- BOS
1 stop11h 30m
TAP AIR PORTUGAL
Deal found 5/10![TAP AIR PORTUGAL logo]()
$855
This Air Transat deal was found by Cheapflights users on 5/11. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:05 am
BOS
- LIS
1 stop18h 30m
Air Transat
Wed 7/88:15 am
LIS
- BOS
1 stop17h 40m
Air Transat
Deal found 5/11![Air Transat logo]()
$862
This KLM deal was found by Cheapflights users on 5/9. 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.
Fri 7/248:25 pm
BOS
- FAO
1 stop30h 00m
KLM
Wed 8/58:20 pm
FAO
- BOS
1 stop25h 17m
KLM
Deal found 5/9![KLM logo]()
$867
This British Airways deal was found by Cheapflights users on 5/8. 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.
Sun 7/59:55 pm
BOS
- FNC
1 stop32h 35m
British Airways
Fri 7/171:10 pm
FNC
- BOS
1 stop14h 25m
British Airways
Deal found 5/8![British Airways logo]()
$943
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/98:00 am
BOS
- OPO
1 stop20h 45m
United Airlines
Tue 8/1812:15 pm
OPO
- BOS
1 stop26h 35m
United Airlines
Deal found 5/11![United Airlines logo]()
$795
This Air France deal was found by Cheapflights users on 5/8. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:10 pm
BOS
- FAO
1 stop19h 30m
Multiple Airlines
Tue 7/289:10 pm
FAO
- BOS
1 stop21h 08m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$795
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:35 pm
BOS
- OPO
1 stop17h 55m
Delta
Sun 5/245:00 am
OPO
- BOS
2 stops19h 03m
Delta
Deal found 5/11![Delta logo]()
$817
This Virgin Atlantic deal was found by Cheapflights users on 5/9. 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.
Mon 7/2011:25 pm
BOS
- LIS
Nonstop6h 20m
Virgin Atlantic
Sun 7/2612:45 pm
LIS
- BOS
Nonstop7h 25m
Virgin Atlantic
Deal found 5/9![Virgin Atlantic logo]()
$851
This KLM deal was found by Cheapflights users on 5/9. 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 6/306:55 pm
BOS
- FAO
1 stop21h 25m
KLM
Wed 7/88:20 pm
FAO
- BOS
1 stop25h 20m
KLM
Deal found 5/9![KLM logo]()
$877
This United Airlines deal was found by Cheapflights users on 5/9. 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 7/285:45 am
BOS
- FAO
2 stops24h 35m
United Airlines
Tue 8/1111:40 am
FAO
- BOS
2 stops27h 38m
United Airlines
Deal found 5/9![United Airlines logo]()
$802
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/97:10 am
BOS
- TER
2 stops22h 25m
Multiple Airlines
Tue 6/166:05 pm
TER
- BOS
Nonstop5h 45m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$826
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:20 pm
BOS
- LIS
Nonstop6h 25m
Delta
Tue 9/1512:45 pm
LIS
- BOS
Nonstop7h 35m
Delta
Deal found 5/11![Delta logo]()
$827
This Virgin Atlantic deal was found by Cheapflights users on 5/8. 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.
Mon 6/811:25 pm
BOS
- LIS
Nonstop6h 20m
Virgin Atlantic
Sat 9/1210:00 am
LIS
- BOS
1 stop13h 29m
Virgin Atlantic
Deal found 5/8![Virgin Atlantic logo]()
$867
This British Airways deal was found by Cheapflights users on 5/12. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:50 pm
BOS
- FNC
1 stop15h 45m
British Airways
Tue 7/77:35 pm
FNC
- BOS
1 stop26h 30m
British Airways
Deal found 5/12![British Airways logo]()
$960
This KLM deal was found by Cheapflights users on 5/8. 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 6/1111:25 pm
BOS
- LIS
Nonstop6h 20m
KLM
Sat 7/412:45 pm
LIS
- BOS
Nonstop7h 25m
KLM
Deal found 5/8![KLM logo]()
$881
This oojo deal was found by Cheapflights users on 5/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/810:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Tue 6/166:15 pm
TER
- BOS
1 stop24h 30m
TAP AIR PORTUGAL
Deal found 5/7![TAP AIR PORTUGAL logo]()
$1,000
This United Airlines deal was found by Cheapflights users on 5/9. 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 7/75:45 am
BOS
- LIS
1 stop23h 45m
United Airlines
Tue 7/2111:25 am
LIS
- BOS
1 stop27h 25m
United Airlines
Deal found 5/9![United Airlines logo]()
$828
This Delta deal was found by Cheapflights users on 5/8. 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.
Wed 7/155:10 pm
BOS
- LIS
1 stop13h 05m
Delta
Wed 7/2912:45 pm
LIS
- BOS
Nonstop7h 25m
Delta
Deal found 5/8![Delta logo]()
$846
This KLM deal was found by Cheapflights users on 5/10. 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.
Wed 7/227:10 pm
BOS
- LIS
1 stop11h 05m
Multiple Airlines
Thu 8/612:45 pm
LIS
- BOS
Nonstop7h 30m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$847
This KLM deal was found by Cheapflights users on 5/8. 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.
Fri 5/2211:25 pm
BOS
- LIS
Nonstop6h 20m
KLM
Tue 5/2612:45 pm
LIS
- BOS
Nonstop7h 30m
KLM
Deal found 5/8![KLM logo]()
$881
This United Airlines deal was found by Cheapflights users on 5/8. 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 7/148:27 pm
BOS
- FAO
1 stop32h 23m
United Airlines
Tue 7/2111:40 am
FAO
- BOS
2 stops32h 00m
United Airlines
Deal found 5/8![United Airlines logo]()
$841
This Delta deal was found by Cheapflights users on 5/8. 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.
Sat 8/87:10 pm
BOS
- LIS
1 stop14h 45m
Delta
Tue 8/2512:45 pm
LIS
- BOS
Nonstop7h 30m
Delta
Deal found 5/8![Delta logo]()
$846
This Mytrip deal was found by Cheapflights users on 5/7. 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 6/15:50 am
BOS
- FAO
3 stops36h 40m
Multiple Airlines
Fri 6/56:05 am
FAO
- BOS
2 stops32h 40m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$847
This KLM deal was found by Cheapflights users on 5/10. 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.
Mon 7/64:40 pm
BOS
- FAO
1 stop22h 45m
KLM
Sun 7/127:00 pm
FAO
- BOS
1 stop26h 40m
KLM
Deal found 5/10![KLM logo]()
$927
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated May 12, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated May 12, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 5/9. 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 5/119:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Tue 5/196:05 pm
TER
- BOS
Nonstop5h 45m
Azores Airlines
Deal found 5/9![Azores Airlines logo]()
$716
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:28 pm
BOS
- OPO
1 stop11h 17m
United Airlines
Thu 5/2112:35 pm
OPO
- BOS
1 stop11h 53m
United Airlines
Deal found 5/11![United Airlines logo]()
$656
This Orbitz deal was found by Cheapflights users on 5/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:00 pm
BOS
- OPO
1 stop9h 45m
Iberia
Wed 5/2012:25 pm
OPO
- BOS
1 stop12h 25m
Iberia
Deal found 5/9![Iberia logo]()
$658
This KAYAK deal was found by Cheapflights users on 5/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:20 pm
BOS
- OPO
1 stop13h 05m
SWISS
Fri 5/228:40 am
OPO
- BOS
1 stop16h 15m
SWISS
Deal found 5/9![SWISS logo]()
$667
This Delta deal was found by Cheapflights users on 5/8. 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 5/124:35 pm
BOS
- OPO
1 stop17h 55m
Delta
Fri 5/2212:45 pm
OPO
- BOS
1 stop11h 18m
Delta
Deal found 5/8![Delta logo]()
$682
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 5/139:40 pm
BOS
- OPO
2 stops35h 05m
SWISS
Wed 5/2012:15 pm
OPO
- BOS
1 stop12h 40m
SWISS
Deal found 5/8![SWISS logo]()
$665
This KAYAK deal was found by Cheapflights users on 5/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:40 pm
BOS
- OPO
1 stop29h 15m
SWISS
Thu 5/217:20 pm
OPO
- BOS
1 stop29h 35m
SWISS
Deal found 5/8![SWISS logo]()
$666
This FlightHub deal was found by Cheapflights users on 5/8. 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.
Wed 5/138:05 pm
BOS
- OPO
1 stop22h 20m
Lufthansa
Tue 5/196:20 am
OPO
- BOS
1 stop16h 20m
Lufthansa
Deal found 5/8![Lufthansa logo]()
$673
This Orbitz deal was found by Cheapflights users on 5/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:40 pm
BOS
- OPO
1 stop32h 45m
Multiple Airlines
Wed 5/206:20 am
OPO
- BOS
2 stops20h 07m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$674
This Rumbo deal was found by Cheapflights users on 5/7. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Tue 5/266:05 pm
TER
- BOS
Nonstop5h 45m
Azores Airlines
Deal found 5/7![Azores Airlines logo]()
$684
This LEVEL deal was found by Cheapflights users on 5/9. 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.
Mon 6/2910:50 pm
BOS
- OPO
1 stop17h 30m
LEVEL
Wed 7/810:00 pm
OPO
- BOS
1 stop28h 45m
LEVEL
Deal found 5/9![LEVEL logo]()
$659
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Mon 6/2910:50 pm
BOS
- FAO
1 stop19h 25m
Multiple Airlines
Thu 7/91:35 pm
FAO
- BOS
1 stop13h 10m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$720
One-way flights from Maine to PortugalSearch for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
This Mytrip deal was found by Cheapflights users on 5/8. 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.
Tue 5/269:15 pm
BOS
- TER
1 stop18h 00m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$299
This Booking.com deal was found by Cheapflights users on 5/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/269:15 pm
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 5/10![Azores Airlines logo]()
$301
This Flightnetwork deal was found by Cheapflights users on 5/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/69:15 pm
BOS
- SJZ
1 stop12h 00m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$301
This Gotogate deal was found by Cheapflights users on 5/8. 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.
Sun 9/279:15 pm
BOS
- TER
1 stop14h 15m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$303
This Flightnetwork deal was found by Cheapflights users on 5/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/69:15 pm
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 5/10![Azores Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Fri 5/229:15 pm
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 5/11![Azores Airlines logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Mon 7/68:50 pm
BOS
- FAO
3 stops45h 15m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$320
This FlightHub deal was found by Cheapflights users on 5/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:15 pm
BOS
- TER
1 stop16h 25m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Mon 8/318:50 pm
BOS
- FAO
2 stops32h 50m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/298:50 pm
BOS
- FAO
2 stops32h 55m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Mon 7/138:50 pm
BOS
- FAO
3 stops31h 45m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$334
This Cheapflightsfares deal was found by Cheapflights users on 5/8. 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 8/310:45 pm
BOS
- PDL
1 stop15h 50m
TAP AIR PORTUGAL
Deal found 5/8![TAP AIR PORTUGAL logo]()
$335
Find flight deals from Maine to Portugal
Keep the following information in mind while searching for Maine to Portugal flight deals. Data was last updated May 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $646 (KLM) |
One-way from | $299 (Mytrip) |
Popular in | December |
Cheapest in | February |
Cheapflights Fare Finder
Customize your flight search to find flights from Maine to Portugal 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 May 12, 2026.
Use the filters below to find and compare flights from Maine to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 6/29
10:50 pm-9:20 pm
1 stop17h 30m
Porto
Wed 7/8
10:00 pm-9:45 pm
1 stop28h 45m
$659
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Tue 8/4
6:50 pm-7:00 am
1 stop31h 10m
Porto
Tue 8/25
12:15 pm-12:47 pm
2 stops29h 32m
$675
Quickest round-trip
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Mon 5/18
9:15 pm-6:20 am
Nonstop5h 05m
Lajes
Tue 5/26
6:05 pm-7:50 pm
Nonstop5h 45m
$684
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Thu 8/6
5:05 pm-10:30 am
1 stop12h 25m
Porto
Thu 8/27
5:00 am-7:15 pm
2 stops19h 15m
$731
BostonVelas
BOS - SJZ
BOSSJZ
Boston Logan Intl
Sat 6/6
9:15 pm-10:30 am
2 stops9h 15m
Velas Sao Jorge Island
Fri 6/12
3:35 pm-7:50 pm
2 stops32h 15m
$763
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Sun 8/9
8:00 am-9:45 am
1 stop20h 45m
Porto
Tue 8/18
12:15 pm-9:50 am
1 stop26h 35m
$795
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Tue 7/21
5:10 pm-5:40 pm
1 stop19h 30m
Faro
Tue 7/28
9:10 pm-1:18 pm
1 stop21h 08m
$795
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Tue 7/28
5:45 am-11:20 am
2 stops24h 35m
Faro
Tue 8/11
11:40 am-10:18 am
2 stops27h 38m
$802
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Fri 5/15
4:35 pm-3:30 pm
1 stop17h 55m
Porto
Sun 5/24
5:00 am-7:03 pm
2 stops19h 03m
$817
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Tue 6/9
7:10 am-9:35 am
2 stops22h 25m
Lajes
Tue 6/16
6:05 pm-7:50 pm
Nonstop5h 45m
$826
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Maine to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Maine with our price prediction graph.
BOS-OPO
BOS-TER
BOS-FAO
BOS-SJZ
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 Maine to Portugal
USME-PT0
BOS-OPO
BOS-TER
BOS-FAO
BOS-SJZ
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Maine to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Maine to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Maine to Portugal by cabin class
Find flights from Maine to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Maine and Portugal flights
Browse other Maine and Portugal flight options. Last updated on May 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Portugal
Find the right flight back to Maine after your stay in Portugal
Maine to Portugal flights
Consider these flights traveling from Maine to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top airline flying from Maine to Portugal
Discover the top airline that operate flights from Maine to Portugal. 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 May 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$721 | FlexibilityNo cancel fee | On-time69% |