$288+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
พ.ค. 28 — มิ.ย. 41
Round-trip
1 adult, Economy
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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 เมษายน 28, 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 เมษายน 28, 2026.
This Gotogate deal was found by Cheapflights users on 4/23. 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.
จ. 5/49:40 pm
BOS
- OPO
1 stop32h 45m
SWISS
พ. 5/136:45 pm
OPO
- BOS
1 stop30h 10m
SWISS
Deal found 4/23![SWISS logo]()
$615
This Air Canada deal was found by Cheapflights users on 4/23. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 10/149:35 am
BOS
- OPO
2 stops16h 25m
Air Canada
พ. 10/2112:45 pm
OPO
- BOS
1 stop13h 42m
Air Canada
Deal found 4/23![Air Canada logo]()
$618
This Justfly.com deal was found by Cheapflights users on 4/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 7/2210:40 am
BOS
- OPO
1 stop15h 20m
Multiple Airlines
พ. 11/117:20 pm
OPO
- BOS
1 stop30h 00m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$619
This KAYAK deal was found by Cheapflights users on 4/23. 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.
พ. 4/2911:17 am
BOS
- OPO
2 stops41h 03m
Austrian Airlines
อ. 5/51:30 pm
OPO
- BOS
1 stop29h 20m
Austrian Airlines
Deal found 4/23![Austrian Airlines logo]()
$620
This Gotogate deal was found by Cheapflights users on 4/25. 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.
จ. 4/273:35 pm
BOS
- OPO
2 stops14h 40m
Air Canada
พ. 5/66:00 am
OPO
- BOS
2 stops40h 45m
Air Canada
Deal found 4/25![Air Canada logo]()
$621
This FlightHub deal was found by Cheapflights users on 4/26. 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.
พ. 10/149:35 am
BOS
- OPO
2 stops16h 25m
Multiple Airlines
พ. 10/287:20 pm
OPO
- BOS
2 stops42h 17m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$622
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
ศ. 5/15:20 pm
BOS
- OPO
1 stop15h 50m
SWISS
ศ. 5/88:40 am
OPO
- BOS
1 stop11h 30m
SWISS
Deal found 4/24![SWISS logo]()
$623
This LEVEL deal was found by Cheapflights users on 4/23. 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.
อา. 7/511:35 pm
BOS
- OPO
1 stop27h 25m
LEVEL
พ. 9/910:00 pm
OPO
- BOS
1 stop28h 15m
LEVEL
Deal found 4/23![LEVEL logo]()
$624
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
จ. 5/46:50 pm
BOS
- FAO
2 stops17h 45m
Multiple Airlines
อ. 5/196:45 pm
FAO
- BOS
1 stop31h 20m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$624
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
พฤ. 4/305:20 pm
BOS
- OPO
1 stop13h 05m
SWISS
อ. 5/58:40 am
OPO
- BOS
1 stop11h 30m
SWISS
Deal found 4/23![SWISS logo]()
$625
This Gotogate deal was found by Cheapflights users on 4/26. 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.
จ. 9/215:50 am
BOS
- OPO
1 stop20h 10m
Multiple Airlines
พ. 10/146:45 pm
OPO
- BOS
1 stop25h 25m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 4/27. 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.
อา. 11/156:00 am
BOS
- OPO
2 stops22h 30m
United Airlines
พ. 12/212:30 pm
OPO
- BOS
1 stop29h 40m
United Airlines
Deal found 4/27![United Airlines logo]()
$628
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 เมษายน 28, 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 เมษายน 28, 2026.
This United Airlines deal was found by Cheapflights users on 4/24. 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.
จ. 9/287:30 am
BOS
- OPO
1 stop21h 15m
United Airlines
พฤ. 10/811:50 am
OPO
- BOS
1 stop27h 00m
United Airlines
Deal found 4/24![United Airlines logo]()
$631
This Vueling Global deal was found by Cheapflights users on 4/23. 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 Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 10/411:50 pm
BOS
- OPO
1 stop11h 20m
Multiple Airlines
อา. 10/118:35 am
OPO
- BOS
1 stop18h 30m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$691
This KLM deal was found by Cheapflights users on 4/27. 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.
พ. 5/134:35 pm
BOS
- FAO
1 stop33h 35m
KLM
อ. 5/198:15 pm
FAO
- BOS
1 stop21h 55m
KLM
Deal found 4/27![KLM logo]()
$737
This LEVEL deal was found by Cheapflights users on 4/27. 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.
พฤ. 8/2011:35 pm
BOS
- LIS
1 stop16h 55m
LEVEL
ส. 9/57:20 pm
LIS
- BOS
1 stop31h 45m
LEVEL
Deal found 4/27![LEVEL logo]()
$745
This Air Transat deal was found by Cheapflights users on 4/27. 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.
จ. 6/86:35 pm
BOS
- OPO
1 stop12h 10m
Air Transat
ส. 6/271:30 pm
OPO
- BOS
1 stop24h 35m
Air Transat
Deal found 4/27![Air Transat logo]()
$853
This Delta deal was found by Cheapflights users on 4/26. 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.
อา. 7/265:10 pm
BOS
- LIS
1 stop13h 05m
Delta
พ. 8/1212:45 pm
LIS
- BOS
Nonstop7h 30m
Delta
Deal found 4/26![Delta logo]()
$916
This Gotogate deal was found by Cheapflights users on 4/27. 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.
ส. 10/1011:15 pm
BOS
- FNC
1 stop18h 35m
TAP AIR PORTUGAL
พ. 10/148:35 am
FNC
- BOS
1 stop16h 45m
TAP AIR PORTUGAL
Deal found 4/27![TAP AIR PORTUGAL logo]()
$928
This KAYAK deal was found by Cheapflights users on 4/23. 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.
จ. 9/289:40 pm
BOS
- FNC
1 stop30h 50m
SWISS
อ. 12/12:05 pm
FNC
- BOS
1 stop35h 15m
SWISS
Deal found 4/23![SWISS logo]()
$1,075
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
จ. 6/159:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
อ. 6/306:05 pm
TER
- BOS
Nonstop5h 45m
Azores Airlines
Deal found 4/27![Azores Airlines logo]()
$1,099
This Air Europa deal was found by Cheapflights users on 4/25. 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 Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 7/66:06 am
BOS
- LIS
2 stops32h 09m
Air Europa
จ. 7/134:05 pm
LIS
- BOS
2 stops36h 03m
Air Europa
Deal found 4/25![Air Europa logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 4/27. 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.
อ. 8/113:35 pm
BOS
- OPO
1 stop10h 25m
United Airlines
พฤ. 8/2011:50 am
OPO
- BOS
2 stops29h 57m
United Airlines
Deal found 4/27![United Airlines logo]()
$635
This Virgin Atlantic deal was found by Cheapflights users on 4/26. 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.
ศ. 8/1411:20 pm
BOS
- LIS
Nonstop6h 25m
Virgin Atlantic
พฤ. 8/2012:45 pm
LIS
- BOS
Nonstop7h 30m
Virgin Atlantic
Deal found 4/26![Virgin Atlantic logo]()
$1,342
This United Airlines deal was found by Cheapflights users on 4/25. 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.
อา. 7/55:45 am
BOS
- OPO
1 stop20h 05m
United Airlines
พ. 8/192:25 pm
OPO
- BOS
1 stop29h 16m
United Airlines
Deal found 4/25![United Airlines logo]()
$648
This KLM deal was found by Cheapflights users on 4/26. 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.
พ. 5/134:35 pm
BOS
- FAO
1 stop33h 35m
KLM
จ. 5/189:45 pm
FAO
- BOS
1 stop23h 40m
KLM
Deal found 4/26![KLM logo]()
$737
This United Airlines deal was found by Cheapflights users on 4/27. 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.
พ. 8/127:35 am
BOS
- OPO
1 stop21h 10m
United Airlines
อา. 8/2312:15 pm
OPO
- BOS
1 stop26h 35m
United Airlines
Deal found 4/27![United Airlines logo]()
$691
This Mytrip deal was found by Cheapflights users on 4/25. 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.
อา. 9/139:15 pm
BOS
- SJZ
2 stops15h 20m
Multiple Airlines
อา. 9/208:55 am
SJZ
- BOS
3 stops36h 40m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$851
This Air Transat deal was found by Cheapflights users on 4/23. 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.
จ. 6/1510:05 am
BOS
- OPO
1 stop20h 40m
Air Transat
ส. 6/201:30 pm
OPO
- BOS
1 stop24h 35m
Air Transat
Deal found 4/23![Air Transat logo]()
$854
This LEVEL deal was found by Cheapflights users on 4/24. 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.
พ. 7/2210:55 pm
BOS
- FAO
1 stop30h 45m
LEVEL
อา. 8/212:05 pm
FAO
- BOS
1 stop14h 40m
LEVEL
Deal found 4/24![LEVEL logo]()
$874
This Delta deal was found by Cheapflights users on 4/25. 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.
ส. 7/45:10 pm
BOS
- FAO
1 stop19h 30m
Delta
อา. 7/126:40 pm
FAO
- BOS
2 stops33h 03m
Delta
Deal found 4/25![Delta logo]()
$941
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
ส. 10/105:40 pm
BOS
- FNC
1 stop12h 00m
Multiple Airlines
พ. 10/148:50 am
FNC
- BOS
2 stops17h 25m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$858
This KLM deal was found by Cheapflights users on 4/27. 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.
ศ. 7/248:25 pm
BOS
- FAO
1 stop19h 40m
KLM
พ. 8/510:10 pm
FAO
- BOS
1 stop23h 27m
KLM
Deal found 4/27![KLM logo]()
$867
This TAP AIR PORTUGAL deal was found by Cheapflights users on 4/24. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 9/110:45 pm
BOS
- PDL
1 stop15h 55m
TAP AIR PORTUGAL
พฤ. 9/106:30 am
PDL
- BOS
2 stops21h 24m
TAP AIR PORTUGAL
Deal found 4/24![TAP AIR PORTUGAL logo]()
$955
This United Airlines deal was found by Cheapflights users on 4/24. 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.
จ. 5/47:00 am
BOS
- FAO
2 stops26h 30m
United Airlines
อ. 5/1911:40 am
FAO
- BOS
2 stops27h 38m
United Airlines
Deal found 4/24![United Airlines logo]()
$762
This Air Transat deal was found by Cheapflights users on 4/24. 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.
อ. 6/1610:05 am
BOS
- FAO
1 stop20h 35m
Air Transat
จ. 6/221:25 pm
FAO
- BOS
1 stop24h 40m
Air Transat
Deal found 4/24![Air Transat logo]()
$930
This oojo deal was found by Cheapflights users on 4/27. 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.
ส. 9/59:15 pm
BOS
- GRW
2 stops14h 40m
Multiple Airlines
อ. 9/84:10 pm
GRW
- BOS
1 stop7h 40m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$877
This KLM deal was found by Cheapflights users on 4/26. 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.
ศ. 5/154:35 pm
BOS
- FAO
1 stop23h 30m
KLM
ส. 5/239:05 pm
FAO
- BOS
1 stop24h 20m
KLM
Deal found 4/26![KLM logo]()
$881
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
พ. 8/510:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
พ. 8/197:15 am
TER
- BOS
1 stop11h 30m
TAP AIR PORTUGAL
Deal found 4/27![TAP AIR PORTUGAL logo]()
$994
This United Airlines deal was found by Cheapflights users on 4/26. 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.
จ. 7/69:30 am
BOS
- OPO
2 stops16h 30m
United Airlines
จ. 8/319:00 am
OPO
- BOS
2 stops15h 16m
United Airlines
Deal found 4/26![United Airlines logo]()
$799
This Gotogate deal was found by Cheapflights users on 4/26. 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.
จ. 9/79:15 pm
BOS
- GRW
1 stop9h 10m
Multiple Airlines
จ. 9/1410:50 am
GRW
- BOS
1 stop13h 00m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$886
This LEVEL deal was found by Cheapflights users on 4/25. 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.
ศ. 5/2210:50 pm
BOS
- LIS
1 stop14h 50m
LEVEL
พฤ. 5/287:05 pm
LIS
- BOS
1 stop31h 00m
LEVEL
Deal found 4/25![LEVEL logo]()
$1,147
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated เมษายน 28, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated เมษายน 28, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 4/26. 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.
จ. 4/273:35 pm
BOS
- OPO
2 stops14h 40m
Multiple Airlines
จ. 5/47:20 pm
OPO
- BOS
1 stop24h 50m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$618
This Gotogate deal was found by Cheapflights users on 4/25. 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.
จ. 4/273:35 pm
BOS
- OPO
2 stops14h 40m
Air Canada
พ. 5/66:00 am
OPO
- BOS
2 stops40h 45m
Air Canada
Deal found 4/25![Air Canada logo]()
$621
This KLM deal was found by Cheapflights users on 4/24. 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.
จ. 4/276:55 pm
BOS
- OPO
1 stop10h 45m
KLM
จ. 5/47:00 pm
OPO
- BOS
1 stop23h 10m
KLM
Deal found 4/24![KLM logo]()
$627
This Delta deal was found by Cheapflights users on 4/26. 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.
จ. 4/275:08 pm
BOS
- OPO
2 stops17h 17m
Delta
พ. 5/65:00 am
OPO
- BOS
2 stops19h 38m
Delta
Deal found 4/26![Delta logo]()
$630
This KAYAK deal was found by Cheapflights users on 4/23. 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.
พ. 4/2911:17 am
BOS
- OPO
2 stops41h 03m
Austrian Airlines
อ. 5/51:30 pm
OPO
- BOS
1 stop29h 20m
Austrian Airlines
Deal found 4/23![Austrian Airlines logo]()
$620
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
พฤ. 4/305:20 pm
BOS
- OPO
1 stop13h 05m
SWISS
อ. 5/58:40 am
OPO
- BOS
1 stop11h 30m
SWISS
Deal found 4/23![SWISS logo]()
$625
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
ศ. 5/15:20 pm
BOS
- OPO
1 stop15h 50m
SWISS
ศ. 5/88:40 am
OPO
- BOS
1 stop11h 30m
SWISS
Deal found 4/24![SWISS logo]()
$623
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
อา. 5/39:40 pm
BOS
- OPO
1 stop15h 35m
SWISS
พ. 5/1312:15 pm
OPO
- BOS
1 stop12h 40m
SWISS
Deal found 4/23![SWISS logo]()
$628
This Gotogate deal was found by Cheapflights users on 4/23. 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.
จ. 5/49:40 pm
BOS
- OPO
1 stop32h 45m
SWISS
พ. 5/136:45 pm
OPO
- BOS
1 stop30h 10m
SWISS
Deal found 4/23![SWISS logo]()
$615
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
จ. 5/46:50 pm
BOS
- FAO
2 stops17h 45m
Multiple Airlines
อ. 5/196:45 pm
FAO
- BOS
1 stop31h 20m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$624
This Priceline deal was found by Cheapflights users on 4/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 5/49:20 pm
BOS
- OPO
1 stop13h 40m
Iberia
พ. 5/1312:25 pm
OPO
- BOS
1 stop12h 25m
Iberia
Deal found 4/23![Iberia logo]()
$629
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
จ. 5/49:40 pm
BOS
- OPO
1 stop32h 45m
SWISS
ศ. 5/158:40 am
OPO
- BOS
1 stop16h 15m
SWISS
Deal found 4/23![SWISS logo]()
$632
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 เมษายน 28, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated เมษายน 28, 2026.
This Mytrip deal was found by Cheapflights users on 4/24. 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.
จ. 5/188:50 pm
BOS
- FAO
2 stops15h 05m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$288
This Mytrip deal was found by Cheapflights users on 4/26. 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.
ศ. 9/1811:45 am
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 4/26![Azores Airlines logo]()
$301
This Mytrip deal was found by Cheapflights users on 4/26. 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.
อา. 9/611:45 am
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 4/26![Azores Airlines logo]()
$302
This Mytrip deal was found by Cheapflights users on 4/26. 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.
จ. 8/319:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Deal found 4/26![Azores Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
จ. 5/188:50 pm
BOS
- OPO
2 stops21h 50m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$303
This Mytrip deal was found by Cheapflights users on 4/25. 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.
จ. 5/49:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Deal found 4/25![Azores Airlines logo]()
$303
This Booking.com deal was found by Cheapflights users on 4/26. 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.
จ. 10/196:05 pm
BOS
- PDL
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 4/26![TAP AIR PORTUGAL logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
อา. 7/511:00 pm
BOS
- FAO
2 stops41h 15m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$305
This oojo deal was found by Cheapflights users on 4/27. 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.
พ. 10/146:05 pm
BOS
- PDL
1 stop20h 45m
TAP AIR PORTUGAL
Deal found 4/27![TAP AIR PORTUGAL logo]()
$307
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
ศ. 9/1111:45 am
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 4/27![Azores Airlines logo]()
$310
This Cheapflightsfares deal was found by Cheapflights users on 4/25. 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.
อา. 10/49:15 pm
BOS
- PIX
1 stop7h 45m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
ส. 9/1911:00 pm
BOS
- OPO
2 stops39h 35m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$311
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 เมษายน 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $618 (Air Canada) |
One-way from | $288 (Mytrip) |
Popular in | December |
Cheapest in | February |
Average price | $1,233 |
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 เมษายน 28, 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
จ. 9/28
7:30 am-9:45 am
1 stop21h 15m
Porto
พฤ. 10/8
11:50 am-9:50 am
1 stop27h 00m
$631
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
อ. 8/11
3:35 pm-7:00 am
1 stop10h 25m
Porto
พฤ. 8/20
11:50 am-12:47 pm
2 stops29h 57m
$635
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
อา. 7/5
5:45 am-6:50 am
1 stop20h 05m
Porto
พ. 8/19
2:25 pm-2:41 pm
1 stop29h 16m
$648
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
อา. 10/4
11:50 pm-4:10 pm
1 stop11h 20m
Porto
อา. 10/11
8:35 am-10:05 pm
1 stop18h 30m
$691
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
พ. 8/12
7:35 am-9:45 am
1 stop21h 10m
Porto
อา. 8/23
12:15 pm-9:50 am
1 stop26h 35m
$691
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
พ. 5/13
4:35 pm-7:10 am
1 stop33h 35m
Faro
อ. 5/19
8:15 pm-1:10 pm
1 stop21h 55m
$737
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
พ. 5/13
4:35 pm-7:10 am
1 stop33h 35m
Faro
จ. 5/18
9:45 pm-4:25 pm
1 stop23h 40m
$737
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
พฤ. 8/20
11:35 pm-9:30 pm
1 stop16h 55m
Lisbon Humberto Delgado
ส. 9/5
7:20 pm-10:05 pm
1 stop31h 45m
$745
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
จ. 5/4
7:00 am-2:30 pm
2 stops26h 30m
Faro
อ. 5/19
11:40 am-10:18 am
2 stops27h 38m
$762
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
จ. 7/6
9:30 am-7:00 am
2 stops16h 30m
Porto
จ. 8/31
9:00 am-7:16 pm
2 stops15h 16m
$799
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-FAO
BOS-TER
BOS-PIX
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-TER
BOS-PIX
No data available for this route at this time. Please check back soon.
Related info for your journey
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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.
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Maine and Portugal flights
Browse other Maine and Portugal flight options. Last updated on เมษายน 28, 2026.
Popular flight searches
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Find a return flight route from Portugal
Find the right flight back to Maine after your stay in Portugal
Maine to Portugal flights
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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 เมษายน 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$729 | FlexibilityNo cancel fee | On-time69% |