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 November 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.

$334 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

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

21h 00m1 stop New York John F Kennedy Intl

3:35 pm - 12:21 amLIS Lisbon Humberto Delgado-PWM Portland

37h 46m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$735KLM

Mon, Dec 7 - Mon, Dec 14

9:30 am - 10:20 amPWM Portland-LIS Lisbon Humberto Delgado

19h 50m1 stop Washington, D.C. Dulles Intl

10:15 am - 11:48 pmLIS Lisbon Humberto Delgado-PWM Portland

18h 33m1 stop Newark

$741United Airlines

Mon, Mar 1 - Thu, Mar 4

12:49 pm - 2:40 pmPWM Portland-LIS Lisbon Humberto Delgado

20h 51m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

3:35 pm - 12:21 amLIS Lisbon Humberto Delgado-PWM Portland

37h 46m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$742KLM

Mon, Dec 7 - Mon, Dec 14

8:42 am - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

18h 28m1 stop Newark

10:15 am - 11:25 pmLIS Lisbon Humberto Delgado-PWM Portland

18h 10m1 stop Newark

$742United Airlines

Mon, Feb 22 - Thu, Feb 25

3:13 pm - 10:20 amPWM Portland-LIS Lisbon Humberto Delgado

14h 07m2 stops Newark Washington, D.C. Dulles Intl

10:15 am - 11:48 pmLIS Lisbon Humberto Delgado-PWM Portland

18h 33m1 stop Newark

$746United Airlines

Mon, Mar 1 - Thu, Mar 4

9:30 am - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

17h 40m2 stops Washington, D.C. Dulles Intl Newark

10:15 am - 9:29 pmLIS Lisbon Humberto Delgado-PWM Portland

16h 14m1 stop Newark

$746United Airlines

Mon, Feb 22 - Thu, Feb 25

7:49 am - 8:10 amPWM Portland-LIS Lisbon Humberto Delgado

19h 21m2 stops Chicago O'Hare Intl Newark

12:20 pm - 1:38 pmLIS Lisbon Humberto Delgado-PWM Portland

30h 18m2 stops Washington, D.C. Dulles Intl Newark

$757United Airlines

Mon, Mar 1 - Thu, Mar 4

2:15 pm - 10:20 amPWM Portland-LIS Lisbon Humberto Delgado

15h 05m1 stop Washington, D.C. Dulles Intl

10:15 am - 7:25 pmLIS Lisbon Humberto Delgado-PWM Portland

14h 10m1 stop Newark

$794United Airlines

Mon, Dec 7 - Mon, Dec 14

12:15 pm - 4:05 pmPWM Portland-LIS Lisbon Humberto Delgado

22h 50m2 stops Chicago O'Hare Intl Madrid Barajas

7:00 am - 10:36 amLIS Lisbon Humberto Delgado-PWM Portland

32h 36m2 stops London Heathrow Philadelphia

$1,126Multiple Airlines

Fri, Feb 12 - Sat, Feb 20

5:30 am - 9:05 amPWM Portland-LIS Lisbon Humberto Delgado

22h 35m2 stops Charlotte Douglas Philadelphia

11:05 am - 10:59 pmLIS Lisbon Humberto Delgado-PWM Portland

16h 54m1 stop Philadelphia

$1,264American Airlines

Mon, Dec 21 - Mon, Dec 28

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United Airlines flights from Maine to Lisbon

Our best United Airlines deals on Maine to Lisbon flight tickets

United Airlines

Mar 1

PWM9:30 amPortland

19h 50m

1 stop

LIS10:20 amLisbon Humberto Delgado

Mar 4

LIS10:15 amLisbon Humberto Delgado

18h 33m

1 stop

PWM11:48 pmPortland

$741

United Airlines

Feb 22

PWM8:42 amPortland

18h 28m

1 stop

LIS8:10 amLisbon Humberto Delgado

Feb 25

LIS10:15 amLisbon Humberto Delgado

18h 10m

1 stop

PWM11:25 pmPortland

$742

United Airlines

Feb 22

PWM9:30 amPortland

17h 40m

2 stops

LIS8:10 amLisbon Humberto Delgado

Feb 25

LIS10:15 amLisbon Humberto Delgado

16h 14m

1 stop

PWM9:29 pmPortland

$746

American Airlines flights from Maine to Lisbon

Our best American Airlines deals on Maine to Lisbon flight tickets

American Airlines

Dec 21

PWM5:30 amPortland

22h 35m

2 stops

LIS9:05 amLisbon Humberto Delgado

Dec 28

LIS11:05 amLisbon Humberto Delgado

16h 54m

1 stop

PWM10:59 pmPortland

$1,264

American Airlines

Dec 24

PWM6:42 pmPortland

9h 23m

1 stop

LIS9:05 amLisbon Humberto Delgado

Dec 31

LIS10:25 amLisbon Humberto Delgado

12h 47m

1 stop

PWM6:12 pmPortland

$1,549

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 12/7

6:00 am-8:00 am

1 stop21h 00m

Lisbon Humberto Delgado

Mon 12/14

3:35 pm-12:21 am

2 stops37h 46m

$735

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 3/1

9:30 am-10:20 am

1 stop19h 50m

Lisbon Humberto Delgado

Thu 3/4

10:15 am-11:48 pm

1 stop18h 33m

$741

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 12/7

12:49 pm-2:40 pm

2 stops20h 51m

Lisbon Humberto Delgado

Mon 12/14

3:35 pm-12:21 am

2 stops37h 46m

$742

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 2/22

8:42 am-8:10 am

1 stop18h 28m

Lisbon Humberto Delgado

Thu 2/25

10:15 am-11:25 pm

1 stop18h 10m

$742

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 3/1

3:13 pm-10:20 am

2 stops14h 07m

Lisbon Humberto Delgado

Thu 3/4

10:15 am-11:48 pm

1 stop18h 33m

$746

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 2/22

9:30 am-8:10 am

2 stops17h 40m

Lisbon Humberto Delgado

Thu 2/25

10:15 am-9:29 pm

1 stop16h 14m

$746

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 3/1

7:49 am-8:10 am

2 stops19h 21m

Lisbon Humberto Delgado

Thu 3/4

12:20 pm-1:38 pm

2 stops30h 18m

$757

Quickest round-trip

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 12/7

2:15 pm-10:20 am

1 stop15h 05m

Lisbon Humberto Delgado

Mon 12/14

10:15 am-7:25 pm

1 stop14h 10m

$794

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Fri 2/12

12:15 pm-4:05 pm

2 stops22h 50m

Lisbon Humberto Delgado

Sat 2/20

7:00 am-10:36 am

2 stops32h 36m

$1,126

PortlandLisbon

PWM Portland - LIS Lisbon Humberto Delgado

PWMLIS

Portland

Mon 12/21

5:30 am-9:05 am

2 stops22h 35m

Lisbon Humberto Delgado

Mon 12/28

11:05 am-10:59 pm

1 stop16h 54m

$1,264

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Maine to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Maine to Lisbon Humberto Delgado?

United Airlines is the most popular carrier operating from Maine to Lisbon Humberto Delgado

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	$334
Fastest flight time	6h 20m
Direct flights	None

The best one-way flight to Lisbon from Maine in the past 72 hours is $334. The best round-trip flight deal from Maine to Lisbon found on momondo in the last 72 hours is $735.

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 November 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 7.3 10,475 reviews		Search United Airlines flights

Sintra

Setúbal

Nazaré

Evora

Figueira da Foz

Estoril

Fátima

Óbidos

Ericeira

Sesimbra

Torres Vedras

Leiria

Batalha

Sines

Costa da Caparica

Caldas da Rainha

Comporta

Oeiras

Peniche

Tomar

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 $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to Lisbon departing on 4/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Maine to Lisbon

Our best United Airlines deals on Maine to Lisbon flight tickets

American Airlines flights from Maine to Lisbon

Our best American Airlines deals on Maine to Lisbon flight tickets

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How to get the cheapest flight ticket from Maine to Lisbon

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Direct flights

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

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.

Popular cities in Portugal

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

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According to popular flight searches on momondo this year

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