$240+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Apr 28 — May 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Maine to Portugal
Cheapest
Best
Last-minute
One-way
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 March 29, 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 March 29, 2026.
This Super.com deal was found by Cheapflights users on 3/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:45 pm
BOS
- OPO
Nonstop6h 45m
TAP AIR PORTUGAL
Tue 11/36:00 pm
OPO
- BOS
Nonstop7h 45m
TAP AIR PORTUGAL
Deal found 3/27![TAP AIR PORTUGAL logo]()
$456
This Justfly.com deal was found by Cheapflights users on 3/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:05 pm
BOS
- FAO
1 stop14h 00m
Lufthansa
Thu 4/163:55 pm
FAO
- BOS
1 stop30h 45m
Lufthansa
Deal found 3/25![Lufthansa logo]()
$471
This FlightHub deal was found by Cheapflights users on 3/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:30 am
BOS
- FAO
2 stops31h 45m
Multiple Airlines
Thu 4/163:55 pm
FAO
- BOS
1 stop30h 45m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$473
This Iberia deal was found by Cheapflights users on 3/25. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:00 pm
BOS
- OPO
1 stop12h 10m
Iberia
Wed 10/212:05 pm
OPO
- BOS
1 stop12h 10m
Iberia
Deal found 3/25![Iberia logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Mon 4/139:40 pm
BOS
- FAO
1 stop15h 40m
SWISS
Tue 4/287:05 pm
FAO
- BOS
1 stop25h 05m
SWISS
Deal found 3/25![SWISS logo]()
$488
This FlightHub deal was found by Cheapflights users on 3/28. 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 10/267:00 pm
BOS
- OPO
1 stop12h 05m
TAP AIR PORTUGAL
Tue 11/36:00 pm
OPO
- BOS
Nonstop7h 45m
TAP AIR PORTUGAL
Deal found 3/28![TAP AIR PORTUGAL logo]()
$489
This Iberia deal was found by Cheapflights users on 3/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:50 pm
BOS
- OPO
1 stop12h 20m
Iberia
Mon 9/2810:00 pm
OPO
- BOS
1 stop28h 15m
Iberia
Deal found 3/29![Iberia logo]()
$492
This Iberia deal was found by Cheapflights users on 3/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:50 pm
BOS
- OPO
1 stop17h 30m
Iberia
Mon 9/2810:00 pm
OPO
- BOS
1 stop28h 15m
Iberia
Deal found 3/27![Iberia logo]()
$493
This oojo deal was found by Cheapflights users on 3/27. 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.
Fri 10/236:05 pm
BOS
- OPO
1 stop17h 45m
TAP AIR PORTUGAL
Tue 11/36:00 pm
OPO
- BOS
Nonstop7h 45m
TAP AIR PORTUGAL
Deal found 3/27![TAP AIR PORTUGAL logo]()
$496
This oojo deal was found by Cheapflights users on 3/29. 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 10/146:05 pm
BOS
- OPO
1 stop9h 55m
TAP AIR PORTUGAL
Wed 10/2110:30 pm
OPO
- BOS
1 stop26h 50m
TAP AIR PORTUGAL
Deal found 3/29![TAP AIR PORTUGAL logo]()
$500
This Super.com deal was found by Cheapflights users on 3/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:10 pm
BOS
- OPO
1 stop13h 50m
TAP AIR PORTUGAL
Sat 11/146:55 am
OPO
- BOS
1 stop12h 45m
TAP AIR PORTUGAL
Deal found 3/27![TAP AIR PORTUGAL logo]()
$501
This Super.com deal was found by Cheapflights users on 3/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:15 pm
BOS
- OPO
Nonstop6h 30m
TAP AIR PORTUGAL
Thu 9/1011:00 am
OPO
- BOS
1 stop14h 20m
TAP AIR PORTUGAL
Deal found 3/26![TAP AIR PORTUGAL logo]()
$503
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 March 29, 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 March 29, 2026.
This lastminute.com deal was found by Cheapflights users on 3/24. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:05 pm
BOS
- FAO
2 stops34h 15m
Brussels Airlines
Tue 4/2812:10 pm
FAO
- BOS
2 stops32h 30m
Brussels Airlines
Deal found 3/24![Brussels Airlines logo]()
$588
This LEVEL deal was found by Cheapflights users on 3/24. 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.
Thu 5/710:50 pm
BOS
- LIS
1 stop28h 40m
LEVEL
Wed 5/137:10 pm
LIS
- BOS
1 stop30h 55m
LEVEL
Deal found 3/24![LEVEL logo]()
$615
This Gotogate deal was found by Cheapflights users on 3/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/69:15 pm
BOS
- TER
Nonstop5h 05m
Multiple Airlines
Tue 4/148:15 pm
TER
- BOS
1 stop27h 35m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$623
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Sun 4/125:45 am
BOS
- FAO
2 stops24h 35m
United Airlines
Sun 4/193:25 pm
FAO
- BOS
2 stops31h 54m
United Airlines
Deal found 3/26![United Airlines logo]()
$634
This Delta deal was found by Cheapflights users on 3/29. 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 4/287:05 pm
BOS
- OPO
1 stop15h 20m
Delta
Thu 5/145:00 am
OPO
- BOS
2 stops20h 04m
Delta
Deal found 3/29![Delta logo]()
$654
This KLM deal was found by Cheapflights users on 3/24. 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.
Mon 5/44:35 pm
BOS
- FAO
1 stop33h 45m
KLM
Mon 5/119:45 pm
FAO
- BOS
1 stop23h 40m
KLM
Deal found 3/24![KLM logo]()
$706
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:23 pm
PWM
- LIS
2 stops17h 32m
American Airlines
Thu 4/1611:05 am
LIS
- PWM
1 stop17h 22m
American Airlines
Deal found 3/27![American Airlines logo]()
$766
This oojo deal was found by Cheapflights users on 3/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:45 pm
BOS
- TER
1 stop20h 30m
TAP AIR PORTUGAL
Sat 5/167:05 am
TER
- BOS
1 stop17h 15m
TAP AIR PORTUGAL
Deal found 3/25![TAP AIR PORTUGAL logo]()
$768
This Booking.com deal was found by Cheapflights users on 3/29. 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 9/219:10 am
PWM
- LIS
2 stops19h 10m
Air Canada
Mon 9/2811:25 am
LIS
- PWM
2 stops50h 46m
Air Canada
Deal found 3/29![Air Canada logo]()
$907
This Virgin Atlantic deal was found by Cheapflights users on 3/24. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:25 pm
BOS
- LIS
Nonstop6h 20m
Virgin Atlantic
Tue 7/1412:45 pm
LIS
- BOS
Nonstop7h 25m
Virgin Atlantic
Deal found 3/24![Virgin Atlantic logo]()
$991
This Air Europa deal was found by Cheapflights users on 3/27. 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 Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:06 am
BOS
- LIS
2 stops32h 09m
Air Europa
Fri 7/1011:35 am
LIS
- BOS
2 stops16h 33m
Air Europa
Deal found 3/27![Air Europa logo]()
$1,096
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Mon 5/119:15 pm
BOS
- PIX
1 stop10h 00m
Multiple Airlines
Mon 5/185:50 pm
PIX
- BOS
1 stop30h 00m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$632
This LEVEL deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:00 pm
BOS
- LIS
1 stop16h 35m
LEVEL
Mon 9/75:45 pm
LIS
- BOS
1 stop32h 30m
LEVEL
Deal found 3/28![LEVEL logo]()
$651
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 8/510:58 am
BOS
- OPO
2 stops15h 02m
United Airlines
Wed 9/212:35 pm
OPO
- BOS
2 stops17h 30m
United Airlines
Deal found 3/25![United Airlines logo]()
$663
This Delta deal was found by Cheapflights users on 3/25. 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.
Wed 4/292:51 pm
PWM
- LIS
2 stops19h 04m
Delta
Mon 5/45:00 am
LIS
- PWM
2 stops24h 46m
Delta
Deal found 3/25![Delta logo]()
$720
This KLM deal was found by Cheapflights users on 3/27. 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.
Wed 4/292:51 pm
PWM
- LIS
2 stops15h 04m
KLM
Mon 5/45:00 am
LIS
- PWM
2 stops24h 46m
KLM
Deal found 3/27![KLM logo]()
$725
This oojo deal was found by Cheapflights users on 3/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:15 pm
BOS
- GRW
2 stops14h 40m
Multiple Airlines
Tue 9/84:10 pm
GRW
- BOS
1 stop7h 40m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$679
This KLM deal was found by Cheapflights users on 3/28. 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 8/194:45 pm
BOS
- FAO
1 stop16h 15m
KLM
Wed 8/268:50 am
FAO
- BOS
1 stop14h 40m
KLM
Deal found 3/28![KLM logo]()
$736
This LEVEL deal was found by Cheapflights users on 3/24. 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.
Mon 7/2711:00 pm
BOS
- OPO
1 stop28h 00m
LEVEL
Wed 7/294:50 pm
OPO
- BOS
1 stop33h 25m
LEVEL
Deal found 3/24![LEVEL logo]()
$756
This Expedia deal was found by Cheapflights users on 3/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3111:00 pm
BOS
- FNC
1 stop10h 15m
TAP AIR PORTUGAL
Sat 6/612:40 pm
FNC
- BOS
2 stops24h 16m
TAP AIR PORTUGAL
Deal found 3/27![TAP AIR PORTUGAL logo]()
$843
This Gotogate deal was found by Cheapflights users on 3/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:15 pm
BOS
- TER
Nonstop5h 05m
Multiple Airlines
Tue 6/168:20 pm
TER
- BOS
1 stop27h 30m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$699
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Wed 4/292:37 pm
BOS
- FAO
2 stops15h 43m
United Airlines
Mon 5/43:25 pm
FAO
- BOS
2 stops33h 30m
United Airlines
Deal found 3/24![United Airlines logo]()
$784
This KLM deal was found by Cheapflights users on 3/26. 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.
Wed 5/134:35 pm
BOS
- FAO
1 stop21h 55m
KLM
Tue 5/198:15 pm
FAO
- BOS
1 stop27h 15m
KLM
Deal found 3/26![KLM logo]()
$736
This Delta deal was found by Cheapflights users on 3/28. 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 5/111:29 pm
BOS
- OPO
2 stops16h 11m
Delta
Sun 5/245:00 am
OPO
- BOS
2 stops19h 03m
Delta
Deal found 3/28![Delta logo]()
$836
This oojo deal was found by Cheapflights users on 3/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/29:15 pm
BOS
- TER
1 stop16h 25m
Multiple Airlines
Sun 4/126:50 am
TER
- BOS
1 stop17h 00m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$746
This United Airlines deal was found by Cheapflights users on 3/28. 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 6/215:45 am
BOS
- OPO
1 stop20h 05m
United Airlines
Thu 9/311:50 am
OPO
- BOS
2 stops31h 32m
United Airlines
Deal found 3/28![United Airlines logo]()
$827
This Virgin Atlantic deal was found by Cheapflights users on 3/27. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:25 pm
BOS
- LIS
Nonstop6h 20m
Virgin Atlantic
Tue 7/1412:45 pm
LIS
- BOS
Nonstop7h 25m
Virgin Atlantic
Deal found 3/27![Virgin Atlantic logo]()
$1,041
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/25. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/711:00 pm
BOS
- OPO
Nonstop6h 30m
TAP AIR PORTUGAL
Mon 8/1012:00 pm
OPO
- BOS
1 stop13h 20m
TAP AIR PORTUGAL
Deal found 3/25![TAP AIR PORTUGAL logo]()
$948
This LEVEL deal was found by Cheapflights users on 3/24. 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.
Fri 7/1711:00 pm
BOS
- OPO
1 stop28h 00m
LEVEL
Wed 7/224:50 pm
OPO
- BOS
1 stop33h 25m
LEVEL
Deal found 3/24![LEVEL logo]()
$863
This KLM deal was found by Cheapflights users on 3/28. 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 9/207:00 pm
BOS
- FAO
1 stop33h 10m
KLM
Sun 10/46:55 pm
FAO
- BOS
1 stop23h 20m
KLM
Deal found 3/28![KLM logo]()
$795
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated March 29, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated March 29, 2026 and is based on user searches.
This Rumbo deal was found by Cheapflights users on 3/28. 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 3/3010:30 pm
BOS
- OPO
Nonstop6h 40m
TAP AIR PORTUGAL
Mon 4/65:50 pm
OPO
- BOS
Nonstop7h 30m
TAP AIR PORTUGAL
Deal found 3/28![TAP AIR PORTUGAL logo]()
$514
This oojo deal was found by Cheapflights users on 3/28. 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 3/3010:30 pm
BOS
- OPO
Nonstop6h 40m
TAP AIR PORTUGAL
Tue 4/1410:30 pm
OPO
- BOS
1 stop21h 15m
TAP AIR PORTUGAL
Deal found 3/28![TAP AIR PORTUGAL logo]()
$516
This KAYAK deal was found by Cheapflights users on 3/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:05 pm
BOS
- FAO
1 stop14h 00m
Lufthansa
Thu 4/163:55 pm
FAO
- BOS
1 stop30h 45m
Lufthansa
Deal found 3/24![Lufthansa logo]()
$523
This Justfly.com deal was found by Cheapflights users on 3/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:05 pm
BOS
- FAO
1 stop14h 00m
Lufthansa
Thu 4/163:55 pm
FAO
- BOS
1 stop30h 45m
Lufthansa
Deal found 3/25![Lufthansa logo]()
$471
This FlightHub deal was found by Cheapflights users on 3/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:30 am
BOS
- FAO
2 stops31h 45m
Multiple Airlines
Thu 4/163:55 pm
FAO
- BOS
1 stop30h 45m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Mon 4/139:40 pm
BOS
- FAO
1 stop15h 40m
SWISS
Tue 4/287:05 pm
FAO
- BOS
1 stop25h 05m
SWISS
Deal found 3/25![SWISS logo]()
$488
This lastminute.com deal was found by Cheapflights users on 3/24. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:05 pm
BOS
- FAO
2 stops36h 45m
Multiple Airlines
Tue 4/287:05 pm
FAO
- BOS
1 stop25h 05m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$528
This FlightHub deal was found by Cheapflights users on 3/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:05 pm
BOS
- FAO
1 stop14h 00m
Lufthansa
Mon 4/203:55 pm
FAO
- BOS
1 stop30h 45m
Lufthansa
Deal found 3/25![Lufthansa logo]()
$546
This Iberia deal was found by Cheapflights users on 3/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:50 pm
BOS
- OPO
1 stop12h 20m
Iberia
Mon 9/2810:00 pm
OPO
- BOS
1 stop28h 15m
Iberia
Deal found 3/29![Iberia logo]()
$492
This FlightHub deal was found by Cheapflights users on 3/29. 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 4/2710:45 pm
BOS
- OPO
1 stop13h 15m
TAP AIR PORTUGAL
Thu 10/19:00 am
OPO
- BOS
1 stop10h 45m
TAP AIR PORTUGAL
Deal found 3/29![TAP AIR PORTUGAL logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Mon 4/2710:50 pm
BOS
- OPO
1 stop27h 00m
Multiple Airlines
Mon 9/2810:40 pm
OPO
- BOS
1 stop27h 35m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$545
This oojo deal was found by Cheapflights users on 3/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:05 pm
BOS
- OPO
1 stop10h 55m
TAP AIR PORTUGAL
Thu 5/149:00 am
OPO
- BOS
1 stop16h 20m
TAP AIR PORTUGAL
Deal found 3/26![TAP AIR PORTUGAL logo]()
$541
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 March 29, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated March 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Mon 5/410:50 pm
BOS
- FAO
1 stop19h 25m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$240
This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Deal found 3/24![Azores Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Mon 4/1311:00 pm
BOS
- OPO
2 stops37h 50m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$296
This Booking.com deal was found by Cheapflights users on 3/28. 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 4/279:15 pm
BOS
- TER
Nonstop5h 05m
Azores Airlines
Deal found 3/28![Azores Airlines logo]()
$296
This Booking.com deal was found by Cheapflights users on 3/28. 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 5/49:15 pm
BOS
- PDL
1 stop18h 40m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Mon 4/139:15 pm
BOS
- OPO
1 stop12h 15m
Azores Airlines
Deal found 3/25![Azores Airlines logo]()
$301
This Gotogate deal was found by Cheapflights users on 3/26. 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.
Sun 4/59:15 pm
BOS
- GRW
2 stops40h 30m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Tue 4/2810:50 pm
BOS
- OPO
2 stops13h 40m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$302
This Booking.com deal was found by Cheapflights users on 3/29. 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 4/79:15 pm
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 3/29![Azores Airlines logo]()
$303
This Booking.com deal was found by Cheapflights users on 3/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/169:15 pm
BOS
- PDL
Nonstop5h 05m
Azores Airlines
Deal found 3/25![Azores Airlines logo]()
$304
This Booking.com deal was found by Cheapflights users on 3/29. 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 4/69:15 pm
BOS
- GRW
1 stop10h 00m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 8/911:50 pm
BOS
- OPO
1 stop26h 20m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$305
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 March 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $471 (Justfly.com) |
One-way from | $240 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $678 |
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 March 29, 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
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Mon 4/13
8:05 pm-11:20 am
2 stops34h 15m
Faro
Tue 4/28
12:10 pm-3:40 pm
2 stops32h 30m
$588
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Thu 5/7
10:50 pm-8:30 am
1 stop28h 40m
Lisbon Humberto Delgado
Wed 5/13
7:10 pm-9:05 pm
1 stop30h 55m
$615
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Mon 4/6
9:15 pm-6:20 am
Nonstop5h 05m
Lajes
Tue 4/14
8:15 pm-7:50 pm
1 stop27h 35m
$623
BostonPico Island
BOS - PIX
BOSPIX
Boston Logan Intl
Mon 5/11
9:15 pm-11:15 am
1 stop10h 00m
Pico Island
Mon 5/18
5:50 pm-7:50 pm
1 stop30h 00m
$632
BostonFaro
BOS - FAO
BOSFAO
Boston Logan Intl
Sun 4/12
5:45 am-11:20 am
2 stops24h 35m
Faro
Sun 4/19
3:25 pm-6:19 pm
2 stops31h 54m
$634
BostonLisbon
BOS - LIS
BOSLIS
Boston Logan Intl
Thu 8/20
11:00 pm-8:35 pm
1 stop16h 35m
Lisbon Humberto Delgado
Mon 9/7
5:45 pm-9:15 pm
1 stop32h 30m
$651
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Tue 4/28
7:05 pm-3:25 pm
1 stop15h 20m
Porto
Thu 5/14
5:00 am-8:04 pm
2 stops20h 04m
$654
BostonPorto
BOS - OPO
BOSOPO
Boston Logan Intl
Wed 8/5
10:58 am-7:00 am
2 stops15h 02m
Porto
Wed 9/2
12:35 pm-1:05 am
2 stops17h 30m
$663
BostonSanta Cruz da Graciosa
BOS - GRW
BOSGRW
Boston Logan Intl
Sat 9/5
9:15 pm-3:55 pm
2 stops14h 40m
Santa Cruz da Graciosa Graciosa Island
Tue 9/8
4:10 pm-7:50 pm
1 stop7h 40m
$679
BostonLajes
BOS - TER
BOSTER
Boston Logan Intl
Mon 6/8
9:15 pm-6:20 am
Nonstop5h 05m
Lajes
Tue 6/16
8:20 pm-7:50 pm
1 stop27h 30m
$699
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-FAO
BOS-OPO
BOS-TER
BOS-PDL
BOS-GRW
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-FAO
BOS-OPO
BOS-TER
BOS-PDL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Top regions
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 March 29, 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 March 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$721 | FlexibilityNo cancel fee | On-time69% |