$548+ Cheap flights from Maine to Portugal
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Dec 2 — Dec 91
Round-trip
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
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
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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 November 2, 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 November 2, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/295:30 am -
1 stop23h 35m
Sun 12/610:40 am -
2 stops57h 58m
Deal found 11/1![United Airlines logo]()
$801
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 12/1511:23 am -
1 stop17h 07m
Tue 12/2212:35 pm -
1 stop14h 55m
Deal found 10/31![United Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:46 am -
1 stop19h 19m
Mon 11/165:00 am -
2 stops21h 51m
Deal found 10/29![United Airlines logo]()
$846
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 12/127:00 am -
1 stop20h 10m
Sat 12/1910:15 am -
1 stop13h 15m
Deal found 10/28![United Airlines logo]()
$859
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 12/163:20 pm -
1 stop13h 10m
Wed 12/2312:35 pm -
2 stops16h 24m
Deal found 11/1![United Airlines logo]()
$875
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 12/301:20 pm -
1 stop13h 55m
Wed 1/65:55 am -
2 stops23h 04m
Deal found 10/28![Delta logo]()
$951
This Gotogate deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/295:50 am -
2 stops47h 50m
Sun 12/610:40 am -
2 stops27h 25m
Deal found 11/1![Air Canada logo]()
$990
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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.
Thu 12/177:00 am -
1 stop20h 10m
Thu 12/248:55 am -
2 stops39h 08m
Deal found 11/2![United Airlines logo]()
$1,047
This Ovago deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/295:20 am -
2 stops31h 45m
Sun 12/611:05 am -
2 stops17h 26m
Deal found 10/31![Multiple Airlines logo]()
$1,057
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 12/308:00 am -
2 stops22h 45m
Wed 1/66:00 am -
2 stops20h 03m
Deal found 10/28![United Airlines logo]()
$1,075
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/79:12 am -
1 stop17h 58m
Fri 12/1111:20 am -
2 stops37h 05m
Deal found 10/29![United Airlines logo]()
$1,089
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/73:20 pm -
1 stop13h 10m
Fri 12/116:00 am -
2 stops20h 29m
Deal found 10/29![United Airlines logo]()
$1,089
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 November 2, 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 November 2, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 4/129:10 am -
1 stop19h 35m
Fri 4/166:00 am -
2 stops20h 27m
Deal found 11/1![United Airlines logo]()
$721
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 4/144:50 pm -
2 stops17h 05m
Tue 4/2011:55 am -
2 stops33h 18m
Deal found 10/31![Delta logo]()
$733
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 3/17:10 am -
1 stop20h 00m
Thu 3/410:15 am -
1 stop11h 17m
Deal found 11/1![United Airlines logo]()
$741
This Delta deal was found by Cheapflights users on 10/28. 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.
Sat 1/303:12 pm -
2 stops38h 23m
Sun 2/75:00 am -
2 stops23h 59m
Deal found 10/28![Delta logo]()
$776
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/153:13 pm -
1 stop11h 57m
Sat 2/275:00 am -
2 stops18h 50m
Deal found 10/29![United Airlines logo]()
$778
This Delta deal was found by Cheapflights users on 10/28. 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.
Sat 1/303:12 pm -
2 stops45h 18m
Sun 2/711:30 am -
2 stops17h 29m
Deal found 10/28![Delta logo]()
$784
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 1/307:45 pm -
1 stop31h 25m
Sat 2/65:00 am -
2 stops21h 03m
Deal found 10/28![United Airlines logo]()
$785
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/295:30 am -
1 stop23h 35m
Sun 12/610:40 am -
2 stops57h 58m
Deal found 11/1![United Airlines logo]()
$801
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 12/301:20 pm -
1 stop13h 55m
Wed 1/65:55 am -
2 stops23h 04m
Deal found 10/28![Delta logo]()
$951
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 12/1511:23 am -
1 stop17h 07m
Tue 12/2212:35 pm -
1 stop14h 55m
Deal found 10/31![United Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3012:15 pm -
1 stop15h 05m
Sun 4/181:00 pm -
2 stops33h 04m
Deal found 10/29![United Airlines logo]()
$842
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 12/153:45 pm -
2 stops25h 15m
Tue 12/225:55 am -
2 stops37h 44m
Deal found 10/31![Delta logo]()
$1,092
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 12/163:20 pm -
1 stop13h 10m
Wed 12/2312:35 pm -
2 stops16h 24m
Deal found 11/1![United Airlines logo]()
$875
This BusinessClass deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1110:28 am -
1 stop17h 37m
Mon 3/111:05 am -
1 stop16h 54m
Deal found 11/1![Multiple Airlines logo]()
$3,884
This BusinessClass deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1112:33 pm -
2 stops15h 32m
Mon 3/16:30 am -
2 stops21h 29m
Deal found 11/1![Iberia logo]()
$3,888
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 12/73:20 pm -
1 stop13h 10m
Fri 12/116:00 am -
2 stops20h 29m
Deal found 10/30![United Airlines logo]()
$1,089
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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.
Thu 12/1711:20 am -
1 stop15h 50m
Thu 12/2410:15 am -
1 stop17h 15m
Deal found 11/2![United Airlines logo]()
$1,292
Last-minute flights from Maine to PortugalDiscover last-minute flight deals from Maine to Portugal. Data last updated November 2, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Portugal. Data last updated November 2, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:10 pm -
1 stop10h 50m
Tue 11/105:00 am -
2 stops23h 25m
Deal found 11/2![Delta logo]()
$848
This Air France deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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.
Fri 11/64:10 pm -
2 stops20h 20m
Tue 11/1011:30 am -
2 stops32h 35m
Deal found 11/2![Multiple Airlines logo]()
$851
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:10 pm -
1 stop10h 50m
Sun 11/811:30 am -
2 stops32h 35m
Deal found 11/2![Delta logo]()
$898
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:10 pm -
1 stop10h 50m
Mon 11/910:00 am -
1 stop18h 25m
Deal found 11/2![Delta logo]()
$909
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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.
Fri 11/611:00 am -
1 stop16h 10m
Sun 11/810:15 am -
1 stop29h 04m
Deal found 11/2![United Airlines logo]()
$1,006
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:46 am -
1 stop19h 19m
Mon 11/165:00 am -
2 stops21h 51m
Deal found 10/29![United Airlines logo]()
$846
This Air France deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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.
Sun 11/84:10 pm -
1 stop10h 50m
Tue 11/1011:30 am -
2 stops32h 35m
Deal found 11/2![Multiple Airlines logo]()
$1,205
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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.
Sun 11/84:10 pm -
2 stops14h 15m
Tue 11/1011:30 am -
2 stops32h 35m
Deal found 11/2![Delta logo]()
$1,208
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/811:00 am -
1 stop16h 10m
Tue 11/1010:15 am -
1 stop29h 04m
Deal found 11/2![United Airlines logo]()
$1,223
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/295:30 am -
1 stop23h 35m
Sun 12/610:40 am -
2 stops57h 58m
Deal found 11/1![United Airlines logo]()
$801
This Gotogate deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/295:50 am -
2 stops47h 50m
Sun 12/610:40 am -
2 stops27h 25m
Deal found 11/1![Air Canada logo]()
$990
This Ovago deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/295:20 am -
2 stops31h 45m
Sun 12/611:05 am -
2 stops17h 26m
Deal found 10/31![Multiple Airlines logo]()
$1,057
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 November 2, 2026.
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated November 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1010:31 am -
3 stops45h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$548
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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.
Thu 12/102:15 pm -
2 stops14h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![United Airlines logo]()
$588
This business-class.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:00 am -
1 stop21h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Lufthansa logo]()
$4,827
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 November 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $721 (United Airlines) |
One-way from | $548 (Kiwi.com) |
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 7,457,451 searches. Data last updated November 2, 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
PortlandPorto
PWM Portland - OPO Porto
PWMOPO
Portland
Thu 12/10
10:31 am-1:05 pm
3 stops45h 34m
Porto
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$548
Quickest round-trip
PortlandPorto
PWM Portland - OPO Porto
PWMOPO
Portland
Thu 12/10
3:20 pm-9:30 am
1 stop13h 10m
Porto
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$588
PortlandPorto
PWM Portland - OPO Porto
PWMOPO
Portland
Mon 4/12
9:10 am-9:45 am
1 stop19h 35m
Porto
Fri 4/16
6:00 am-9:27 pm
2 stops20h 27m
$721
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Wed 4/14
4:50 pm-2:55 pm
2 stops17h 05m
Lisbon Humberto Delgado
Tue 4/20
11:55 am-4:13 pm
2 stops33h 18m
$733
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Mon 3/1
7:10 am-8:10 am
1 stop20h 00m
Lisbon Humberto Delgado
Thu 3/4
10:15 am-4:32 pm
1 stop11h 17m
$741
PortlandPorto
PWM Portland - OPO Porto
PWMOPO
Portland
Sat 1/30
3:12 pm-10:35 am
2 stops38h 23m
Porto
Sun 2/7
5:00 am-11:59 pm
2 stops23h 59m
$776
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Mon 2/15
3:13 pm-8:10 am
1 stop11h 57m
Lisbon Humberto Delgado
Sat 2/27
5:00 am-6:50 pm
2 stops18h 50m
$778
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Sat 1/30
3:12 pm-5:30 pm
2 stops45h 18m
Lisbon Humberto Delgado
Sun 2/7
11:30 am-11:59 pm
2 stops17h 29m
$784
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Sat 1/30
7:45 pm-8:10 am
1 stop31h 25m
Lisbon Humberto Delgado
Sat 2/6
5:00 am-9:03 pm
2 stops21h 03m
$785
PortlandLisbon
PWM Portland - LIS Lisbon Humberto Delgado
PWMLIS
Portland
Sun 11/29
5:30 am-10:05 am
1 stop23h 35m
Lisbon Humberto Delgado
Sun 12/6
10:40 am-3:38 pm
2 stops57h 58m
$801
Showing 1-10 of 20 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.
PWM-LIS
BGR-LIS
PWM-OPO
BGR-OPO
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
PWM-LIS
BGR-LIS
PWM-OPO
BGR-OPO
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.
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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 November 2, 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 7,457,451 searches. Data last updated November 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$707 | FlexibilityNo cancel fee | On-time69% |