How do I get Price Alerts for flights from Maine to Lisbon?

Confirm your travel details to search for the latest offers for flights from Maine to Lisbon . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Maine to Lisbon with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Maine to Lisbon Humberto Delgado Airport?

Prices for flights from Maine to Lisbon Humberto Delgado Airport are updated daily.

How many operators does momondo search for flights from Maine to Lisbon Humberto Delgado Airport?

There is 1 operator available for flights from Maine to Lisbon Humberto Delgado Airport as of September 2026.

How old do you have to be to fly from Maine to Lisbon Humberto Delgado Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The travel and health documents required for your trip to Lisbon Humberto Delgado Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lisbon Humberto Delgado Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$713 Cheap Flights from Maine to Lisbon in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Maine to Lisbon

Round-trip

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

11h 30m1 stop Newark

5:00 am - 7:02 pmLIS Lisbon Humberto Delgado-PWM Portland

19h 02m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$713United Airlines

Wed, Nov 11 - Wed, Nov 18

3:40 pm - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

11h 30m1 stop Newark

11:55 am - 7:02 pmLIS Lisbon Humberto Delgado-PWM Portland

12h 07m1 stop Washington, D.C. Dulles Intl

$726United Airlines

Wed, Nov 11 - Wed, Nov 18

2:05 pm - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

13h 05m2 stops Washington, D.C. Dulles Intl Newark

10:15 am - 9:51 pmLIS Lisbon Humberto Delgado-PWM Portland

16h 36m2 stops Newark Chicago O'Hare Intl

$730United Airlines

Wed, Nov 11 - Wed, Nov 18

8:49 am - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

18h 21m1 stop Newark

10:55 am - 9:52 pmLIS Lisbon Humberto Delgado-PWM Portland

39h 57m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$761United Airlines

Thu, Nov 12 - Thu, Nov 19

5:35 am - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

21h 35m1 stop Newark

5:00 am - 9:51 pmLIS Lisbon Humberto Delgado-PWM Portland

21h 51m2 stops Frankfurt am Main Chicago O'Hare Intl

$763United Airlines

Mon, Nov 9 - Mon, Nov 16

5:30 am - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

21h 40m2 stops Washington, D.C. Dulles Intl Newark

10:55 am - 2:16 pmLIS Lisbon Humberto Delgado-PWM Portland

32h 21m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$765United Airlines

Thu, Nov 12 - Thu, Nov 19

6:00 am - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

21h 10m1 stop Newark

10:40 am - 2:42 pmLIS Lisbon Humberto Delgado-PWM Portland

57h 02m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$767United Airlines

Sun, Jan 17 - Sun, Jan 24

5:35 am - 10:20 amPWM Portland-LIS Lisbon Humberto Delgado

23h 45m2 stops Newark Washington, D.C. Dulles Intl

5:00 am - 9:51 pmLIS Lisbon Humberto Delgado-PWM Portland

21h 51m2 stops Frankfurt am Main Chicago O'Hare Intl

$768United Airlines

Mon, Nov 9 - Mon, Nov 16

6:00 am - 9:20 amPWM Portland-LIS Lisbon Humberto Delgado

22h 20m2 stops Newark Toronto Pearson Intl

10:40 am - 9:48 pmLIS Lisbon Humberto Delgado-PWM Portland

40h 08m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$769Air Canada

Sun, Jan 17 - Sun, Jan 24

4:03 pm - 8:00 amPWM Portland-LIS Lisbon Humberto Delgado

10h 57m1 stop New York John F Kennedy Intl

10:00 am - 12:19 amLIS Lisbon Humberto Delgado-PWM Portland

19h 19m1 stop New York John F Kennedy Intl

$776KLM

Thu, Nov 12 - Thu, Nov 19

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United Airlines flights from Maine to Lisbon

Our best United Airlines deals on Maine to Lisbon flight tickets

United Airlines

Nov 11

PWM3:40 pmPortland

11h 30m

1 stop

LIS8:10 amLisbon Humberto Delgado

Nov 18

LIS5:00 amLisbon Humberto Delgado

19h 02m

2 stops

PWM7:02 pmPortland

$713

United Airlines

Nov 11

PWM3:40 pmPortland

11h 30m

1 stop

LIS8:10 amLisbon Humberto Delgado

Nov 18

LIS11:55 amLisbon Humberto Delgado

12h 07m

1 stop

PWM7:02 pmPortland

$726

United Airlines

Nov 11

PWM2:05 pmPortland

13h 05m

2 stops

LIS8:10 amLisbon Humberto Delgado

Nov 18

LIS10:15 amLisbon Humberto Delgado

16h 36m

2 stops

PWM9:51 pmPortland

$730

Air Canada flights from Maine to Lisbon

Our best Air Canada deals on Maine to Lisbon flight tickets

Air Canada

Jan 17

PWM6:00 amPortland

22h 20m

2 stops

LIS9:20 amLisbon Humberto Delgado

Jan 24

LIS10:40 amLisbon Humberto Delgado

40h 08m

2 stops

PWM9:48 pmPortland

$769

Air Canada

Jan 17

PWM8:55 amPortland

19h 25m

3 stops

LIS9:20 amLisbon Humberto Delgado

Jan 24

LIS10:40 amLisbon Humberto Delgado

26h 39m

3 stops

PWM8:19 amPortland

$1,018

Air Canada

Oct 8

PWM10:43 amPortland

17h 37m

3 stops

LIS9:20 amLisbon Humberto Delgado

Oct 11

LIS7:35 amLisbon Humberto Delgado

20h 53m

3 stops

PWM11:28 pmPortland

$3,760

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Wed 11/11

3:40 pm-8:10 am

1 stop11h 30m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-7:02 pm

2 stops19h 02m

$713

Quickest round-trip

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Wed 11/11

3:40 pm-8:10 am

1 stop11h 30m

Lisbon Humberto Delgado

Wed 11/18

11:55 am-7:02 pm

1 stop12h 07m

$726

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Wed 11/11

2:05 pm-8:10 am

2 stops13h 05m

Lisbon Humberto Delgado

Wed 11/18

10:15 am-9:51 pm

2 stops16h 36m

$730

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Thu 11/12

8:49 am-8:10 am

1 stop18h 21m

Lisbon Humberto Delgado

Thu 11/19

10:55 am-9:52 pm

2 stops39h 57m

$761

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 11/9

5:35 am-8:10 am

1 stop21h 35m

Lisbon Humberto Delgado

Mon 11/16

5:00 am-9:51 pm

2 stops21h 51m

$763

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Thu 11/12

5:30 am-8:10 am

2 stops21h 40m

Lisbon Humberto Delgado

Thu 11/19

10:55 am-2:16 pm

2 stops32h 21m

$765

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Sun 1/17

6:00 am-8:10 am

1 stop21h 10m

Lisbon Humberto Delgado

Sun 1/24

10:40 am-2:42 pm

2 stops57h 02m

$767

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 11/9

5:35 am-10:20 am

2 stops23h 45m

Lisbon Humberto Delgado

Mon 11/16

5:00 am-9:51 pm

2 stops21h 51m

$768

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Sun 1/17

6:00 am-9:20 am

2 stops22h 20m

Lisbon Humberto Delgado

Sun 1/24

10:40 am-9:48 pm

2 stops40h 08m

$769

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Thu 11/12

4:03 pm-8:00 am

1 stop10h 57m

Lisbon Humberto Delgado

Thu 11/19

10:00 am-12:19 am

1 stop19h 19m

$776

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Maine to Lisbon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to Lisbon

Best Price Found	$713
Fastest flight time	6h 20m
Direct flights	None

The best flight deal from Maine to Lisbon found on momondo in the last 72 hours is $713

The fastest flight from Maine to Lisbon takes 6h 20m

There are no direct flights from Maine to Lisbon. There are no popular flight routes from Maine to Lisbon.

Search flight deals

Frequently asked questions about flying from Maine to Lisbon

When did momondo last update prices for flights from Maine to Lisbon Humberto Delgado Airport?
Prices for flights from Maine to Lisbon Humberto Delgado Airport are updated daily.
How many operators does momondo search for flights from Maine to Lisbon Humberto Delgado Airport?
There is 1 operator available for flights from Maine to Lisbon Humberto Delgado Airport as of September 2026.
How old do you have to be to fly from Maine to Lisbon Humberto Delgado Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The travel and health documents required for your trip to Lisbon Humberto Delgado Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lisbon Humberto Delgado Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Maine to Lisbon

Compare and see reviews for airlines that fly from Maine to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $550	Free Cancellation	Rating 7.4 10,261 reviews		Search United Airlines flights

Frequently asked questions about flying from Maine to Lisbon

How do I get Price Alerts for flights from Maine to Lisbon?
Confirm your travel details to search for the latest offers for flights from Maine to Lisbon. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Maine to Lisbon with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Sintra

Setúbal

Figueira da Foz

Nazaré

Evora

Fátima

Estoril

Óbidos

Batalha

Leiria

Sesimbra

Sines

Zambujeira do Mar

Caldas da Rainha

Ericeira

Comporta

Oeiras

Costa da Caparica

Tomar

Colares

Why use momondo?

Why should I use momondo to find a flight deal from Maine to Lisbon?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Maine to Lisbon for you.

Can I find flights from Maine to Lisbon with flexible booking policies on momondo?

Yes. All flights to Lisbon from Maine on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Maine to Lisbon?

Once you have performed a search for Maine to Lisbon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Maine to Lisbon right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Maine to Lisbon now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Lisbon and let you know when they change.

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Cheap flights from Maine to Lisbon from $713

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to Lisbon departing on 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Maine to Lisbon

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Filter for what you want

Filter for what you want

Trusted and free

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United Airlines flights from Maine to Lisbon

Our best United Airlines deals on Maine to Lisbon flight tickets

Air Canada flights from Maine to Lisbon

Our best Air Canada deals on Maine to Lisbon flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Maine to Lisbon that are best for you.

Cheap Maine to Lisbon flight deals and tips

Best Price Found

Fastest flight time

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Frequently asked questions about flying from Maine to Lisbon

Best airlines flying from Maine to Lisbon

Compare and see reviews for airlines that fly from Maine to Lisbon with momondo

Frequently asked questions about flying from Maine to Lisbon

Traveling to a place near Lisbon?

Why use momondo?

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Lisbon

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Lisbon

List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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