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

Prices for flights from Portland Airport to Lisbon Humberto Delgado Airport refresh daily.

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

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

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Lisbon Humberto Delgado Airport.

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

The necessary travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland, Maine to Lisbon

Round-trip

One-way

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 Portland, Maine to Lisbon

Our best United Airlines deals on Portland, 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 Portland, Maine to Lisbon

Our best Air Canada deals on Portland, 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

Nov 14

PWM3:41 pmPortland

18h 29m

3 stops

LIS3:10 pmLisbon Humberto Delgado

Nov 21

LIS9:50 amLisbon Humberto Delgado

28h 10m

3 stops

PWM9:00 amPortland

$1,549

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

How to get the cheapest flight ticket from Portland, 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 airlines fly to Lisbon?

TAP AIR PORTUGAL, Delta and Virgin Atlantic are the top three most popular airlines that fly to Lisbon from Portland, Maine according to our data. TAP AIR PORTUGAL is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 19 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland, Maine to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland, Maine to Lisbon (PWM to LIS) flight deals and tips

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

Best Price Found	$713
Fastest flight time	11h 39m
Direct flights	None

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

The fastest flight from Portland, Maine to Lisbon takes 11h 39m

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

Search flight deals

Frequently asked questions about flying from Portland, Maine to Lisbon

How far is Portland to Lisbon Humberto Delgado by plane?
A flight from Portland to Lisbon Humberto Delgado will travel around 3121.9 mi. Typically, this will take 11h 39m by plane in normal conditions.
When did momondo last update prices for flights from Portland Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Portland Airport to Lisbon Humberto Delgado Airport refresh daily.
How many operators does momondo search for flights from Portland Airport to Lisbon Humberto Delgado Airport?
There is 1 operator available for flights from Portland Airport to Lisbon Humberto Delgado Airport as of September 2026.
How old do you have to be to fly from Portland Airport to Lisbon Humberto Delgado Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The necessary travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Portland, Maine to Lisbon?
Based on momondo bookings for flights between Portland, Maine and Lisbon, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Portland, Maine to Lisbon

Compare and see reviews for airlines that fly from Portland, 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

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 Portland 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 Portland to Lisbon for you.

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

momondo does allow users to show only those flights to Lisbon from Portland which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Portland 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 Portland to Lisbon right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Lisbon, momondo offers a useful price alert feature which will track prices for flights to Lisbon from Portland and alert you when they change.

An easier way to manage your Lisbon trip

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Cheap flights from Portland, 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 Portland, 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.

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United Airlines flights from Portland, Maine to Lisbon

Our best United Airlines deals on Portland, Maine to Lisbon flight tickets

Air Canada flights from Portland, Maine to Lisbon

Our best Air Canada deals on Portland, Maine to Lisbon flight tickets

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How to get the cheapest flight ticket from Portland, Maine to Lisbon

What airlines fly to Lisbon?

When to book flights from Portland, Maine to Lisbon

Cheap Portland, Maine to Lisbon (PWM to LIS) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Portland, Maine to Lisbon

Best airlines flying from Portland, Maine to Lisbon

Compare and see reviews for airlines that fly from Portland, 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.

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

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