What is the cheapest airline that flies from Maryland to Portugal?

Delta, British Airways, and SWISS are the most popular carriers operating from Maryland to Portugal

How many flights depart from Maryland to Portugal on average per week?

As of August 2026, 55 flights take off from Maryland and land in Portugal each week. The most common flight departure day for this route is Fri, with 22% of weekly flights taking off on this day.

When did momondo last update prices for flights from Maryland to Portugal?

Prices for flights from Maryland to Portugal are refreshed on a daily basis.

How many operators does momondo search for flights from Maryland to Portugal?

As of August 2026, there are 14 operators available to choose from for flights from Maryland to Portugal.

How old do you have to be to fly from Maryland to Portugal?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maryland to Portugal.

What documentation or ID do you need to fly to Portugal?

The travel and health documents required for your trip to Portugal 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 Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$269 Cheap Flights from Maryland to Portugal in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Maryland to Portugal

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:05 pm - 11:35 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

9h 30m1 stop Casablanca Mohamed V

5:55 pm - 7:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

30h 10m1 stop Casablanca Mohamed V

$649Royal Air Maroc

Sun, Jan 10 - Thu, Jan 14

9:05 pm - 11:35 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

9h 30m1 stop Casablanca Mohamed V

5:55 pm - 7:05 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

30h 10m1 stop Casablanca Mohamed V

$649Royal Air Maroc

Wed, Nov 25 - Tue, Dec 1

8:00 pm - 9:10 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

44h 10m2 stops Orlando London Gatwick

8:25 am - 6:50 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

15h 25m1 stop Madrid Barajas

$650Multiple Airlines

Sun, Oct 11 - Tue, Oct 20

8:00 pm - 9:10 pmIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

44h 10m2 stops Orlando London Gatwick

8:25 am - 3:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

12h 15m1 stop Madrid Barajas

$650Multiple Airlines

Sun, Oct 11 - Fri, Oct 23

10:35 pm - 7:00 pmIAD Washington, D.C. Dulles Intl-OPO Porto

15h 25m1 stop Lisbon Humberto Delgado

7:00 am - 3:10 pmOPO Porto-IAD Washington, D.C. Dulles Intl

13h 10m1 stop Lisbon Humberto Delgado

$674TAP AIR PORTUGAL

Wed, Oct 7 - Tue, Oct 13

10:30 pm - 6:00 pmIAD Washington, D.C. Dulles Intl-OPO Porto

14h 30m1 stop Lisbon Humberto Delgado

6:00 pm - 2:45 pmOPO Porto-IAD Washington, D.C. Dulles Intl

25h 45m1 stop Lisbon Humberto Delgado

$675TAP AIR PORTUGAL

Wed, Nov 25 - Mon, Nov 30

4:35 pm - 9:00 amPHL Philadelphia-LIS Lisbon Humberto Delgado

11h 25m1 stop Boston Logan Intl

5:00 am - 6:27 pmLIS Lisbon Humberto Delgado-PHL Philadelphia

18h 27m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$716KLM

Tue, Nov 10 - Wed, Nov 18

9:40 am - 9:00 amPHL Philadelphia-LIS Lisbon Humberto Delgado

18h 20m1 stop Boston Logan Intl

5:00 am - 8:06 pmLIS Lisbon Humberto Delgado-PHL Philadelphia

20h 06m2 stops Amsterdam Schiphol Boston Logan Intl

$716Delta

Sun, Dec 13 - Tue, Dec 22

3:00 pm - 10:35 amIAD Washington, D.C. Dulles Intl-OPO Porto

14h 35m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

11:15 am - 3:55 pmOPO Porto-IAD Washington, D.C. Dulles Intl

33h 40m1 stop Amsterdam Schiphol

$737Delta

Mon, Nov 23 - Thu, Nov 26

6:40 pm - 10:35 amIAD Washington, D.C. Dulles Intl-OPO Porto

10h 55m1 stop Paris Charles de Gaulle

11:00 am - 9:36 pmOPO Porto-IAD Washington, D.C. Dulles Intl

15h 36m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

$754KLM

Tue, Nov 10 - Thu, Nov 19

Cheap last minute flights

Enter your travel dates to find the best prices.

10:35 pm - 7:00 pmIAD Washington, D.C. Dulles Intl-OPO Porto

15h 25m1 stop Lisbon Humberto Delgado

11:00 am - 8:35 pmOPO Porto-IAD Washington, D.C. Dulles Intl

14h 35m1 stop Lisbon Humberto Delgado

$724TAP AIR PORTUGAL

Wed, Aug 19 - Thu, Sep 10

5:45 pm - 10:10 amIAD Washington, D.C. Dulles Intl-OPO Porto

11h 25m1 stop Lisbon Humberto Delgado

11:00 am - 8:35 pmOPO Porto-IAD Washington, D.C. Dulles Intl

14h 35m1 stop Lisbon Humberto Delgado

$726TAP AIR PORTUGAL

Wed, Aug 19 - Thu, Sep 10

12:35 pm - 8:40 amIAD Washington, D.C. Dulles Intl-PDL Ponta Delgada Nordela

16h 05m1 stop Newark

11:00 am - 9:28 pmPDL Ponta Delgada Nordela-IAD Washington, D.C. Dulles Intl

14h 28m1 stop Newark

$877United Airlines

Sun, Aug 16 - Thu, Aug 27

2:59 pm - 8:40 amDCA Washington, D.C. Reagan-National-PDL Ponta Delgada Nordela

13h 41m1 stop Newark

11:00 am - 4:58 pmPDL Ponta Delgada Nordela-DCA Washington, D.C. Reagan-National

9h 58m1 stop Newark

$877United Airlines

Sun, Aug 16 - Thu, Aug 27

5:55 pm - 11:10 amIAD Washington, D.C. Dulles Intl-OPO Porto

12h 15m1 stop Frankfurt am Main

6:20 am - 7:25 pmOPO Porto-IAD Washington, D.C. Dulles Intl

18h 05m1 stop Munich Franz Josef Strauss

$921Lufthansa

Tue, Aug 18 - Mon, Aug 24

9:45 am - 11:25 amIAD Washington, D.C. Dulles Intl-OPO Porto

20h 40m2 stops Montreal Pierre Elliott Trudeau Intl Zurich

6:20 am - 7:25 pmOPO Porto-IAD Washington, D.C. Dulles Intl

18h 05m1 stop Munich Franz Josef Strauss

$936Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

9:45 am - 11:25 amIAD Washington, D.C. Dulles Intl-OPO Porto

20h 40m2 stops Montreal Pierre Elliott Trudeau Intl Zurich

6:00 am - 4:05 pmOPO Porto-IAD Washington, D.C. Dulles Intl

15h 05m1 stop Frankfurt am Main

$942Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

7:19 pm - 3:30 pmIAD Washington, D.C. Dulles Intl-OPO Porto

15h 11m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

5:00 am - 3:35 pmOPO Porto-IAD Washington, D.C. Dulles Intl

15h 35m1 stop Amsterdam Schiphol

$969Delta

Sun, Aug 16 - Tue, Aug 25

12:29 pm - 8:30 amIAD Washington, D.C. Dulles Intl-OPO Porto

15h 01m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

5:00 am - 3:35 pmOPO Porto-IAD Washington, D.C. Dulles Intl

15h 35m1 stop Amsterdam Schiphol

$969Delta

Sun, Aug 16 - Tue, Aug 25

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

5:15 pm - 8:35 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$1,073JetBlue

Wed, Aug 19 - Tue, Aug 25

Cheap direct flights

Enter your travel dates to find the best prices.

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

5:15 pm - 8:35 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$685TAP AIR PORTUGAL

Sat, Sep 19 - Fri, Sep 25

10:35 pm - 10:55 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 20mnonstop

10:55 am - 2:25 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$707TAP AIR PORTUGAL

Sat, Sep 19 - Fri, Sep 25

9:25 pm - 9:05 amPHL Philadelphia-LIS Lisbon Humberto Delgado

6h 40mnonstop

11:05 am - 2:05 pmLIS Lisbon Humberto Delgado-PHL Philadelphia

8h 00mnonstop

$752Iberia

Tue, Nov 24 - Tue, Dec 8

9:25 pm - 9:05 amPHL Philadelphia-LIS Lisbon Humberto Delgado

6h 40mnonstop

11:05 am - 2:05 pmLIS Lisbon Humberto Delgado-PHL Philadelphia

8h 00mnonstop

$752Iberia

Mon, Nov 16 - Wed, Nov 18

6:25 pm - 5:35 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 10mnonstop

11:25 am - 3:15 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$753JetBlue

Thu, Oct 29 - Sat, Nov 7

5:25 pm - 5:35 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

7h 10mnonstop

11:25 am - 3:15 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 50mnonstop

$753JetBlue

Sat, Nov 7 - Mon, Nov 16

9:25 pm - 9:05 amPHL Philadelphia-LIS Lisbon Humberto Delgado

6h 40mnonstop

11:05 am - 3:20 pmLIS Lisbon Humberto Delgado-PHL Philadelphia

9h 15mnonstop

$756Finnair

Tue, Jan 12 - Tue, Jan 26

9:25 pm - 9:05 amPHL Philadelphia-LIS Lisbon Humberto Delgado

6h 40mnonstop

11:05 am - 3:20 pmLIS Lisbon Humberto Delgado-PHL Philadelphia

9h 15mnonstop

$757Finnair

Sun, Jan 10 - Wed, Jan 20

10:15 pm - 10:05 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

11:55 am - 3:15 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$762United Airlines

Sun, Nov 8 - Wed, Nov 18

10:30 pm - 10:20 amIAD Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado

6h 50mnonstop

12:20 pm - 3:40 pmLIS Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl

8h 20mnonstop

$762United Airlines

Wed, Nov 4 - Thu, Nov 12

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Icelandair flights from Maryland to Portugal

Our best Icelandair deals on Maryland to Portugal flight tickets

Icelandair

Oct 28

BWI8:40 pmBaltimore/Washington

12h 10m

1 stop

LIS12:50 pmLisbon Humberto Delgado

Nov 3

LIS2:00 pmLisbon Humberto Delgado

33h 40m

1 stop

BWI6:40 pmBaltimore/Washington

$695

Icelandair

Oct 17

BWI8:30 pmBaltimore/Washington

12h 20m

1 stop

LIS1:50 pmLisbon Humberto Delgado

Nov 3

LIS2:00 pmLisbon Humberto Delgado

33h 40m

1 stop

BWI6:40 pmBaltimore/Washington

$697

Icelandair

Oct 12

BWI8:30 pmBaltimore/Washington

12h 20m

1 stop

LIS1:50 pmLisbon Humberto Delgado

Oct 18

LIS3:00 pmLisbon Humberto Delgado

33h 25m

1 stop

BWI7:25 pmBaltimore/Washington

$724

Royal Air Maroc flights from Maryland to Portugal

Our best Royal Air Maroc deals on Maryland to Portugal flight tickets

Royal Air Maroc

Jan 10

IAD9:05 pmWashington, D.C. Dulles Intl

9h 30m

1 stop

LIS11:35 amLisbon Humberto Delgado

Jan 20

LIS11:40 amLisbon Humberto Delgado

12h 25m

1 stop

IAD7:05 pmWashington, D.C. Dulles Intl

$649

Royal Air Maroc

Nov 8

IAD9:05 pmWashington, D.C. Dulles Intl

14h 50m

1 stop

LIS4:55 pmLisbon Humberto Delgado

Nov 14

LIS5:55 pmLisbon Humberto Delgado

30h 10m

1 stop

IAD7:05 pmWashington, D.C. Dulles Intl

$663

Royal Air Maroc

Nov 27

IAD9:05 pmWashington, D.C. Dulles Intl

9h 30m

1 stop

LIS11:35 amLisbon Humberto Delgado

Dec 3

LIS5:55 pmLisbon Humberto Delgado

30h 10m

1 stop

IAD7:05 pmWashington, D.C. Dulles Intl

$672

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sun 1/10

9:05 pm-11:35 am

1 stop9h 30m

Lisbon Humberto Delgado

Thu 1/14

5:55 pm-7:05 pm

1 stop30h 10m

$649

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Wed 11/25

9:05 pm-11:35 am

1 stop9h 30m

Lisbon Humberto Delgado

Tue 12/1

5:55 pm-7:05 pm

1 stop30h 10m

$649

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sun 10/11

8:00 pm-9:10 pm

2 stops44h 10m

Lisbon Humberto Delgado

Tue 10/20

8:25 am-6:50 pm

1 stop15h 25m

$650

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sun 10/11

8:00 pm-9:10 pm

2 stops44h 10m

Lisbon Humberto Delgado

Fri 10/23

8:25 am-3:40 pm

1 stop12h 15m

$650

Washington, D.C.Porto

IAD Washington, D.C. Dulles Intl - OPO Porto

IADOPO

Washington, D.C. Dulles Intl

Wed 10/7

10:35 pm-7:00 pm

1 stop15h 25m

Porto

Tue 10/13

7:00 am-3:10 pm

1 stop13h 10m

$674

Washington, D.C.Porto

IAD Washington, D.C. Dulles Intl - OPO Porto

IADOPO

Washington, D.C. Dulles Intl

Wed 11/25

10:30 pm-6:00 pm

1 stop14h 30m

Porto

Mon 11/30

6:00 pm-2:45 pm

1 stop25h 45m

$675

PhiladelphiaLisbon

PHL Philadelphia - LIS Lisbon Humberto Delgado

PHLLIS

Philadelphia

Tue 11/10

4:35 pm-9:00 am

1 stop11h 25m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-6:27 pm

2 stops18h 27m

$716

PhiladelphiaLisbon

PHL Philadelphia - LIS Lisbon Humberto Delgado

PHLLIS

Philadelphia

Sun 12/13

9:40 am-9:00 am

1 stop18h 20m

Lisbon Humberto Delgado

Tue 12/22

5:00 am-8:06 pm

2 stops20h 06m

$716

Washington, D.C.Porto

IAD Washington, D.C. Dulles Intl - OPO Porto

IADOPO

Washington, D.C. Dulles Intl

Mon 11/23

3:00 pm-10:35 am

2 stops14h 35m

Porto

Thu 11/26

11:15 am-3:55 pm

1 stop33h 40m

$737

Quickest round-trip

Washington, D.C.Porto

IAD Washington, D.C. Dulles Intl - OPO Porto

IADOPO

Washington, D.C. Dulles Intl

Tue 11/10

6:40 pm-10:35 am

1 stop10h 55m

Porto

Thu 11/19

11:00 am-9:36 pm

2 stops15h 36m

$754

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Maryland to Portugal

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

Prices

Airlines

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Maryland is in February. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Maryland during March instead. Flights to Portugal in March, while not as cheap as those in February, still average around $808.

How far in advance should I book a flight from Maryland to Portugal?

You are more likely to see cheaper flights to Portugal from Maryland when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $994 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Maryland for as low as $860 on momondo.

Can stopping save me money on Maryland to Portugal flights?

You could potentially save up to 11% on your flight if you consider stops on a Maryland to Portugal flight.

Cheap Maryland to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maryland to Portugal

Fastest flight time	6h 40m
Direct flights	Every day
Airports in Portugal	99 airports

The fastest flight from Maryland to Portugal takes 6h 40m

Direct flights go from Maryland to Portugal every day.

There are 99 airports in Portugal. From Maryland there are direct flights to Lisbon Humberto Delgado (LIS).

Search flight deals

Frequently asked questions about flying from Maryland to Portugal

When did momondo last update prices for flights from Maryland to Portugal?
Prices for flights from Maryland to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from Maryland to Portugal?
As of August 2026, there are 14 operators available to choose from for flights from Maryland to Portugal.
How old do you have to be to fly from Maryland to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maryland to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal 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 Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Maryland to Portugal

Compare and see reviews for airlines that fly from Maryland to Portugal with momondo

Airline	Rating	Free Cancellation	Price
TAP AIR PORTUGAL	PriceFrom $640	Free Cancellation	Rating 7.2 2,368 reviews		Search TAP AIR PORTUGAL flights
British Airways	PriceFrom $719	Free Cancellation	Rating 6.7 8,160 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Maryland to Portugal?

It is quick and easy to find Maryland to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from Maryland to Portugal with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Maryland to Portugal flights to just show those with flexible booking policies.

How can momondo help me find flights from Maryland to Portugal?

Once all potential Maryland to Portugal flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Maryland to Portugal flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $562

Flights to Portofrom $524

Flights to Funchalfrom $606

Flights to Farofrom $610

Flights to Ponta Delgadafrom $580

Flights to Lajesfrom $635

Flights to Hortafrom $712

Flights to Pico Islandfrom $642

Flights to Porto Santofrom $713

Flights to Velasfrom $694

Cheap flights from Maryland to Portugal from $269

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maryland to Portugal departing on 10/19. 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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Icelandair flights from Maryland to Portugal

Our best Icelandair deals on Maryland to Portugal flight tickets

Royal Air Maroc flights from Maryland to Portugal

Our best Royal Air Maroc deals on Maryland to Portugal flight tickets

momondo Fare Finder

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

See travel insights to Portugal from

How to get the cheapest flight ticket from Maryland to Portugal

What is the cheapest month to fly to Portugal?

How far in advance should I book a flight from Maryland to Portugal?

Can stopping save me money on Maryland to Portugal flights?

What is the cheapest airline that flies from Maryland to Portugal?

How many flights depart from Maryland to Portugal on average per week?

Cheap Maryland to Portugal flight deals and tips

Fastest flight time

Direct flights

Airports in Portugal

Frequently asked questions about flying from Maryland to Portugal

Best airlines flying from Maryland to Portugal

Compare and see reviews for airlines that fly from Maryland to Portugal with momondo

Why use momondo?

An easier way to manage your Portugal 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

Popular cities in Portugal

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

Maryland flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

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

Cabin classes currently available on flights to Portugal

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

Complete your trip to Portugal

Explore popular destinations other users love

According to popular flight searches on momondo this year