$215+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Mar 19 — Mar 261
1 adult, Economy
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Find cheap flights from Maine to Portugal 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
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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 February 17, 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 February 17, 2026.
This United Airlines deal was found by Cheapflights users on 2/14. 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.
Mon 2/236:27 pm
BOS
- OPO
1 stop10h 03m
United Airlines
Thu 3/1212:35 pm
OPO
- BOS
1 stop11h 40m
United Airlines
Deal found 2/14![United Airlines logo]()
$367
This Booking.com deal was found by Cheapflights users on 2/16. 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 10/199:35 am
BOS
- OPO
2 stops16h 25m
Multiple Airlines
Mon 11/97:20 pm
OPO
- BOS
1 stop30h 00m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$370
This Mytrip deal was found by Cheapflights users on 2/16. 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 4/2611:00 pm
BOS
- FAO
1 stop32h 50m
Icelandair
Mon 5/41:50 pm
FAO
- BOS
1 stop12h 55m
Icelandair
Deal found 2/16![Icelandair logo]()
$371
This Gotogate deal was found by Cheapflights users on 2/15. 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 11/255:30 am
BOS
- OPO
2 stops24h 45m
Multiple Airlines
Wed 12/27:20 pm
OPO
- BOS
1 stop30h 00m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 2/13. 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.
Mon 2/236:27 pm
BOS
- OPO
1 stop10h 03m
United Airlines
Wed 3/412:35 pm
OPO
- BOS
1 stop11h 06m
United Airlines
Deal found 2/13![United Airlines logo]()
$376
This FlightHub deal was found by Cheapflights users on 2/13. 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.
Sun 4/2611:00 pm
BOS
- FAO
1 stop32h 50m
Icelandair
Mon 5/111:50 pm
FAO
- BOS
1 stop12h 55m
Icelandair
Deal found 2/13![Icelandair logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 2/254:45 pm
BOS
- OPO
1 stop14h 00m
Iberia
Tue 3/312:25 pm
OPO
- BOS
1 stop12h 25m
Iberia
Deal found 2/16![Iberia logo]()
$377
This Orbitz deal was found by Cheapflights users on 2/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/254:45 pm
BOS
- OPO
1 stop14h 00m
Iberia
Wed 3/48:20 am
OPO
- BOS
1 stop11h 55m
Iberia
Deal found 2/13![Iberia logo]()
$378
This Expedia deal was found by Cheapflights users on 2/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:45 pm
BOS
- OPO
1 stop9h 55m
Iberia
Tue 3/178:20 am
OPO
- BOS
1 stop11h 55m
Iberia
Deal found 2/16![Iberia logo]()
$379
This United Airlines deal was found by Cheapflights users on 2/16. 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 10/1410:40 am
BOS
- OPO
1 stop15h 20m
United Airlines
Wed 10/212:25 pm
OPO
- BOS
2 stops24h 26m
United Airlines
Deal found 2/16![United Airlines logo]()
$380
This oojo deal was found by Cheapflights users on 2/15. 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 4/2911:00 pm
BOS
- FAO
1 stop32h 50m
Icelandair
Mon 5/41:50 pm
FAO
- BOS
1 stop12h 55m
Icelandair
Deal found 2/15![Icelandair logo]()
$380
This United Airlines deal was found by Cheapflights users on 2/13. 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 2/242:20 pm
BOS
- OPO
2 stops14h 10m
United Airlines
Tue 3/312:35 pm
OPO
- BOS
1 stop12h 36m
United Airlines
Deal found 2/13![United Airlines logo]()
$381
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 February 17, 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 February 17, 2026.
This United Airlines deal was found by Cheapflights users on 2/16. 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 3/87:57 pm
BOS
- OPO
1 stop9h 33m
United Airlines
Wed 3/1812:35 pm
OPO
- BOS
1 stop13h 06m
United Airlines
Deal found 2/16![United Airlines logo]()
$376
This KLM deal was found by Cheapflights users on 2/15. 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 3/239:50 pm
BOS
- FAO
1 stop31h 40m
KLM
Tue 3/3110:00 am
FAO
- BOS
1 stop32h 13m
KLM
Deal found 2/15![KLM logo]()
$457
This oojo deal was found by Cheapflights users on 2/16. 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.
Tue 3/3110:45 pm
BOS
- PDL
1 stop15h 55m
TAP AIR PORTUGAL
Tue 4/77:40 pm
PDL
- BOS
1 stop23h 05m
TAP AIR PORTUGAL
Deal found 2/16![TAP AIR PORTUGAL logo]()
$505
This Booking.com deal was found by Cheapflights users on 2/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/610:45 pm
BOS
- PDL
1 stop21h 00m
Multiple Airlines
Mon 4/136:05 pm
PDL
- BOS
Nonstop5h 45m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$553
This Delta deal was found by Cheapflights users on 2/13. 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.
Mon 4/137:05 pm
BOS
- LIS
1 stop11h 10m
Delta
Mon 4/2012:45 pm
LIS
- BOS
Nonstop7h 36m
Delta
Deal found 2/13![Delta logo]()
$563
This Scandinavian Airlines deal was found by Cheapflights users on 2/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/125:40 pm
BOS
- LIS
2 stops17h 20m
Scandinavian Airlines
Sun 4/197:00 am
LIS
- BOS
2 stops17h 38m
Scandinavian Airlines
Deal found 2/13![Scandinavian Airlines logo]()
$569
This Cheapflightsfares deal was found by Cheapflights users on 2/16. 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.
Tue 3/39:20 pm
BOS
- PDL
Nonstop4h 55m
Azores Airlines
Wed 3/115:50 pm
PDL
- BOS
Nonstop6h 10m
Azores Airlines
Deal found 2/16![Azores Airlines logo]()
$580
This United Airlines deal was found by Cheapflights users on 2/15. 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 2/246:27 pm
BOS
- OPO
1 stop10h 03m
United Airlines
Wed 3/412:35 pm
OPO
- BOS
1 stop11h 06m
United Airlines
Deal found 2/15![United Airlines logo]()
$376
This Air France deal was found by Cheapflights users on 2/16. 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.
Wed 4/14:48 pm
PWM
- LIS
2 stops17h 07m
Air France
Wed 4/1510:00 am
LIS
- PWM
1 stop33h 11m
Air France
Deal found 2/16![Air France logo]()
$770
This United Airlines deal was found by Cheapflights users on 2/16. 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 2/239:30 am
BOS
- OPO
2 stops19h 00m
United Airlines
Fri 3/612:45 pm
OPO
- BOS
1 stop11h 09m
United Airlines
Deal found 2/16![United Airlines logo]()
$381
This KLM deal was found by Cheapflights users on 2/15. 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.
Sun 3/158:10 pm
BOS
- FAO
1 stop18h 15m
KLM
Tue 3/317:55 pm
FAO
- BOS
1 stop22h 18m
KLM
Deal found 2/15![KLM logo]()
$457
This United Airlines deal was found by Cheapflights users on 2/13. 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.
Mon 2/2312:35 pm
BOS
- OPO
2 stops15h 55m
United Airlines
Tue 3/312:35 pm
OPO
- BOS
1 stop12h 36m
United Airlines
Deal found 2/13![United Airlines logo]()
$381
This KLM deal was found by Cheapflights users on 2/13. 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 4/274:35 pm
BOS
- FAO
1 stop33h 45m
KLM
Mon 5/49:45 pm
FAO
- BOS
1 stop23h 48m
KLM
Deal found 2/13![KLM logo]()
$458
This United Airlines deal was found by Cheapflights users on 2/13. 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.
Mon 2/2312:35 pm
BOS
- OPO
2 stops15h 55m
United Airlines
Thu 3/512:35 pm
OPO
- BOS
1 stop12h 40m
United Airlines
Deal found 2/13![United Airlines logo]()
$381
This oojo deal was found by Cheapflights users on 2/16. 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 3/237:05 pm
BOS
- PDL
1 stop10h 10m
TAP AIR PORTUGAL
Tue 3/317:40 pm
PDL
- BOS
1 stop29h 00m
TAP AIR PORTUGAL
Deal found 2/16![TAP AIR PORTUGAL logo]()
$512
This KLM deal was found by Cheapflights users on 2/16. 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 4/284:35 pm
BOS
- FAO
1 stop34h 05m
KLM
Mon 5/49:45 pm
FAO
- BOS
1 stop23h 48m
KLM
Deal found 2/16![KLM logo]()
$458
This KLM deal was found by Cheapflights users on 2/13. 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.
Sun 4/2611:25 pm
BOS
- LIS
Nonstop6h 20m
Multiple Airlines
Mon 5/45:35 am
LIS
- BOS
1 stop12h 50m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$555
This United Airlines deal was found by Cheapflights users on 2/14. 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.
Mon 2/237:19 pm
BOS
- OPO
2 stops33h 11m
United Airlines
Thu 3/126:00 am
OPO
- BOS
2 stops22h 35m
United Airlines
Deal found 2/14![United Airlines logo]()
$385
This Scandinavian Airlines deal was found by Cheapflights users on 2/16. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:40 pm
BOS
- LIS
1 stop21h 45m
Scandinavian Airlines
Thu 4/167:00 am
LIS
- BOS
2 stops17h 38m
Scandinavian Airlines
Deal found 2/16![Scandinavian Airlines logo]()
$585
This Cheapflightsfares deal was found by Cheapflights users on 2/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1310:45 pm
BOS
- PDL
1 stop21h 00m
TAP AIR PORTUGAL
Wed 5/2010:45 am
PDL
- BOS
1 stop13h 55m
TAP AIR PORTUGAL
Deal found 2/14![TAP AIR PORTUGAL logo]()
$543
This Gotogate deal was found by Cheapflights users on 2/14. 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.
Thu 3/1210:20 pm
BOS
- PDL
Nonstop4h 55m
Azores Airlines
Mon 3/165:45 pm
PDL
- BOS
Nonstop6h 10m
Azores Airlines
Deal found 2/14![Azores Airlines logo]()
$618
This Mytrip deal was found by Cheapflights users on 2/13. 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 2/259:25 pm
BOS
- TER
1 stop19h 20m
Multiple Airlines
Tue 3/35:45 pm
TER
- BOS
Nonstop6h 10m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$567
This KLM deal was found by Cheapflights users on 2/13. 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.
Wed 3/46:00 am
BOS
- FAO
2 stops22h 10m
KLM
Wed 3/1110:20 am
FAO
- BOS
2 stops24h 55m
KLM
Deal found 2/13![KLM logo]()
$473
This Delta deal was found by Cheapflights users on 2/14. 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.
Wed 4/811:25 pm
BOS
- LIS
Nonstop6h 20m
Delta
Thu 4/1612:45 pm
LIS
- BOS
Nonstop7h 36m
Delta
Deal found 2/14![Delta logo]()
$646
This Scandinavian Airlines deal was found by Cheapflights users on 2/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:40 pm
BOS
- LIS
1 stop17h 25m
Scandinavian Airlines
Fri 4/107:00 am
LIS
- BOS
2 stops21h 02m
Scandinavian Airlines
Deal found 2/15![Scandinavian Airlines logo]()
$602
This oojo deal was found by Cheapflights users on 2/16. 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 4/2911:15 pm
BOS
- FNC
1 stop17h 35m
TAP AIR PORTUGAL
Wed 5/63:05 pm
FNC
- BOS
2 stops28h 40m
TAP AIR PORTUGAL
Deal found 2/16![TAP AIR PORTUGAL logo]()
$556
This Cheapflightsfares deal was found by Cheapflights users on 2/16. 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 3/1810:25 pm
BOS
- PDL
Nonstop4h 55m
Azores Airlines
Wed 3/255:50 pm
PDL
- BOS
Nonstop6h 10m
Azores Airlines
Deal found 2/16![Azores Airlines logo]()
$619
This Mytrip deal was found by Cheapflights users on 2/13. 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 2/259:25 pm
BOS
- PDL
Nonstop4h 55m
Multiple Airlines
Tue 3/311:15 am
PDL
- BOS
1 stop12h 40m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$571
This KLM deal was found by Cheapflights users on 2/15. 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 4/84:35 pm
BOS
- FAO
1 stop33h 35m
KLM
Wed 4/298:20 pm
FAO
- BOS
1 stop25h 05m
KLM
Deal found 2/15![KLM logo]()
$492
This Delta deal was found by Cheapflights users on 2/14. 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.
Tue 4/711:25 pm
BOS
- LIS
Nonstop6h 20m
Delta
Thu 4/1610:00 am
LIS
- BOS
1 stop14h 38m
Delta
Deal found 2/14![Delta logo]()
$656
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated February 17, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated February 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/14. 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.
Mon 2/236:27 pm
BOS
- OPO
1 stop10h 03m
United Airlines
Thu 3/1212:35 pm
OPO
- BOS
1 stop11h 40m
United Airlines
Deal found 2/14![United Airlines logo]()
$367
This United Airlines deal was found by Cheapflights users on 2/13. 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.
Mon 2/236:27 pm
BOS
- OPO
1 stop10h 03m
United Airlines
Thu 3/512:35 pm
OPO
- BOS
1 stop11h 06m
United Airlines
Deal found 2/13![United Airlines logo]()
$376
This American Airlines deal was found by Cheapflights users on 2/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:15 pm
BOS
- OPO
2 stops13h 30m
American Airlines
Thu 3/128:20 am
OPO
- BOS
2 stops14h 59m
American Airlines
Deal found 2/15![American Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 2/13. 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 2/242:20 pm
BOS
- OPO
2 stops14h 10m
United Airlines
Tue 3/312:35 pm
OPO
- BOS
2 stops27h 15m
United Airlines
Deal found 2/13![United Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 2/254:45 pm
BOS
- OPO
1 stop14h 00m
Iberia
Tue 3/312:25 pm
OPO
- BOS
1 stop12h 25m
Iberia
Deal found 2/16![Iberia logo]()
$377
This Orbitz deal was found by Cheapflights users on 2/15. 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 2/254:45 pm
BOS
- OPO
1 stop14h 00m
Iberia
Thu 3/512:25 pm
OPO
- BOS
1 stop12h 25m
Iberia
Deal found 2/15![Iberia logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 2/254:45 pm
BOS
- OPO
1 stop14h 00m
Iberia
Mon 3/28:40 pm
OPO
- BOS
1 stop23h 35m
Iberia
Deal found 2/15![Iberia logo]()
$388
This Orbitz deal was found by Cheapflights users on 2/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/254:45 pm
BOS
- OPO
1 stop14h 00m
Iberia
Tue 3/108:40 pm
OPO
- BOS
1 stop23h 35m
Iberia
Deal found 2/14![Iberia logo]()
$389
This Orbitz deal was found by Cheapflights users on 2/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:45 pm
BOS
- OPO
1 stop14h 00m
Iberia
Tue 3/178:20 am
OPO
- BOS
1 stop11h 55m
Iberia
Deal found 2/13![Iberia logo]()
$379
This Mytrip deal was found by Cheapflights users on 2/15. 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 3/310:45 am
BOS
- FAO
2 stops27h 35m
Multiple Airlines
Sat 3/78:05 pm
FAO
- BOS
2 stops22h 05m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$479
This KLM deal was found by Cheapflights users on 2/13. 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.
Wed 3/47:10 pm
BOS
- FAO
1 stop32h 15m
KLM
Wed 3/1110:20 am
FAO
- BOS
1 stop13h 35m
KLM
Deal found 2/13![KLM logo]()
$459
This KLM deal was found by Cheapflights users on 2/15. 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.
Sun 3/158:10 pm
BOS
- FAO
1 stop18h 15m
KLM
Tue 3/317:55 pm
FAO
- BOS
1 stop22h 18m
KLM
Deal found 2/15![KLM logo]()
$457
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 February 17, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated February 17, 2026.
This Mytrip deal was found by Cheapflights users on 2/16. 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 3/1511:45 pm
BOS
- PDL
1 stop29h 30m
TAP AIR PORTUGAL
Deal found 2/16![TAP AIR PORTUGAL logo]()
$215
This SmartFares deal was found by Cheapflights users on 2/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:40 pm
BOS
- PDL
1 stop12h 20m
TAP AIR PORTUGAL
Deal found 2/13![TAP AIR PORTUGAL logo]()
$216
This FlightHub deal was found by Cheapflights users on 2/15. 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 2/236:05 pm
BOS
- PDL
1 stop10h 10m
TAP AIR PORTUGAL
Deal found 2/15![TAP AIR PORTUGAL logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 2/226:05 pm
BOS
- PDL
1 stop10h 15m
TAP AIR PORTUGAL
Deal found 2/15![TAP AIR PORTUGAL logo]()
$230
This Mytrip deal was found by Cheapflights users on 2/15. 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 4/208:50 pm
BOS
- OPO
2 stops18h 50m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
Sun 3/812:35 pm
BOS
- OPO
2 stops42h 25m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
Tue 3/108:50 pm
BOS
- OPO
2 stops20h 55m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 3/228:50 pm
BOS
- FAO
2 stops20h 25m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$250
This Trip.com deal was found by Cheapflights users on 2/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:45 pm
BOS
- PDL
1 stop21h 00m
TAP AIR PORTUGAL
Deal found 2/13![TAP AIR PORTUGAL logo]()
$252
This oojo deal was found by Cheapflights users on 2/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:45 pm
BOS
- PDL
1 stop16h 05m
TAP AIR PORTUGAL
Deal found 2/13![TAP AIR PORTUGAL logo]()
$253
This oojo deal was found by Cheapflights users on 2/15. 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 2/236:05 pm
BOS
- TER
1 stop12h 55m
TAP AIR PORTUGAL
Deal found 2/15![TAP AIR PORTUGAL logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
Sun 3/17:50 pm
BOS
- OPO
2 stops34h 10m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$254
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 February 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $371 (Mytrip) |
One-way from | $215 (Mytrip) |
Popular in | June |
Cheapest in | November |
Average price | $654 |
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 February 17, 2026.
Use the filters below to find and compare flights from Maine to Portugal that are best for you.
Fly from
Maine
Fly to
Portugal
Route
Depart
Return
Price
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Sun 3/8
7:57 pm-9:30 am
1 stop9h 33m
Porto
Wed 3/18
12:35 pm-9:41 pm
1 stop13h 06m
$376
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Tue 2/24
6:27 pm-9:30 am
1 stop10h 03m
Porto
Wed 3/4
12:35 pm-6:41 pm
1 stop11h 06m
$376
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 2/23
9:30 am-9:30 am
2 stops19h 00m
Porto
Fri 3/6
12:45 pm-6:54 pm
1 stop11h 09m
$381
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 2/23
12:35 pm-9:30 am
2 stops15h 55m
Porto
Tue 3/3
12:35 pm-8:11 pm
1 stop12h 36m
$381
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 2/23
12:35 pm-9:30 am
2 stops15h 55m
Porto
Thu 3/5
12:35 pm-8:15 pm
1 stop12h 40m
$381
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Mon 2/23
7:19 pm-9:30 am
2 stops33h 11m
Porto
Thu 3/12
6:00 am-12:35 am
2 stops22h 35m
$385
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Mon 3/23
9:50 pm-9:30 am
1 stop31h 40m
Faro
Tue 3/31
10:00 am-1:13 pm
1 stop32h 13m
$457
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Sun 3/15
8:10 pm-6:25 pm
1 stop18h 15m
Faro
Tue 3/31
7:55 pm-1:13 pm
1 stop22h 18m
$457
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Mon 4/27
4:35 pm-7:20 am
1 stop33h 45m
Faro
Mon 5/4
9:45 pm-4:33 pm
1 stop23h 48m
$458
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Tue 4/28
4:35 pm-7:40 am
1 stop34h 05m
Faro
Mon 5/4
9:45 pm-4:33 pm
1 stop23h 48m
$458
Showing 1-10 of 60 results
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-FAO
BOS-PDL
BOS-TER
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-FAO
BOS-PDL
BOS-TER
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 February 17, 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 February 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$578 | Average$763 | FlexibilityNo cancel fee | On-time69% |