How long is the flight from Portugal to State of Washington?

If you’re flying from a popular airport in Portugal, such as Lisbon or Porto, and flying into State of Washington, then you can expect flight times to average 19h 52m and 20h 25m, respectively.

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

Aer Lingus, British Airways, and Lufthansa are the most popular carriers operating from Portugal to Washington

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

Prices for flights from Portugal to Washington were last updated today.

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

The number of operators available for flights from Portugal to Washington is 2 as of September 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Washington.

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

The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$424 Cheap Flights from Portugal to Washington in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portugal to Washington

Round-trip

One-way

Last minute

Recent round-trip flight deals from Portugal to Washington

Enter your travel dates to find the best prices.

6:35 am - 8:40 pmFAO Faro-SEA Seattle/Tacoma Intl

22h 05m2 stops London Gatwick Reykjavik Keflavik Intl

3:40 pm - 7:15 pmSEA Seattle/Tacoma Intl-FAO Faro

19h 35m2 stops Reykjavik Keflavik Intl London Gatwick

$595Multiple Airlines

Thu, Oct 8 - Mon, Oct 12

6:35 am - 7:00 pmOPO Porto-SEA Seattle/Tacoma Intl

20h 25m2 stops Valencia London Stansted

6:45 pm - 8:30 pmSEA Seattle/Tacoma Intl-OPO Porto

17h 45m1 stop London Heathrow

$691Multiple Airlines

Wed, Oct 21 - Wed, Nov 11

7:20 pm - 2:50 pmFAO Faro-SEA Seattle/Tacoma Intl

27h 30m1 stop London Southend

7:24 am - 6:45 pmSEA Seattle/Tacoma Intl-FAO Faro

27h 21m2 stops Boston Logan Intl London Heathrow

$699Multiple Airlines

Mon, Nov 2 - Sun, Nov 8

6:10 am - 5:00 pmOPO Porto-SEA Seattle/Tacoma Intl

18h 50m1 stop London Stansted

6:45 pm - 7:00 pmSEA Seattle/Tacoma Intl-OPO Porto

16h 15m1 stop London Heathrow

$704Multiple Airlines

Thu, Nov 5 - Mon, Nov 9

9:45 pm - 11:52 amFAO Faro-SEA Seattle/Tacoma Intl

22h 07m1 stop Amsterdam Schiphol

1:45 pm - 5:25 pmSEA Seattle/Tacoma Intl-FAO Faro

19h 40m1 stop Amsterdam Schiphol

$886KLM

Mon, Oct 5 - Mon, Oct 12

7:10 pm - 11:47 amFAO Faro-SEA Seattle/Tacoma Intl

24h 37m1 stop Amsterdam Schiphol

2:35 pm - 1:50 pmSEA Seattle/Tacoma Intl-FAO Faro

15h 15m1 stop Amsterdam Schiphol

$886KLM

Mon, Nov 2 - Sun, Nov 8

9:45 pm - 11:52 amFAO Faro-SEA Seattle/Tacoma Intl

22h 07m1 stop Amsterdam Schiphol

11:05 am - 5:25 pmSEA Seattle/Tacoma Intl-FAO Faro

22h 20m2 stops Salt Lake City Amsterdam Schiphol

$886KLM

Mon, Oct 5 - Mon, Oct 12

5:00 am - 11:35 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 35m1 stop Amsterdam Schiphol

7:15 am - 11:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

20h 05m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

$888Delta

Fri, Mar 5 - Wed, Mar 10

5:00 am - 4:35 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

19h 35m1 stop Amsterdam Schiphol

11:05 am - 3:10 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

21h 05m2 stops Salt Lake City Paris Charles de Gaulle

$888Delta

Wed, Oct 21 - Wed, Oct 28

5:55 am - 11:50 pmOPO Porto-GEG Spokane

25h 55m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

4:30 pm - 10:00 pmGEG Spokane-OPO Porto

21h 30m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

$1,133Delta

Sun, Oct 11 - Sat, Oct 17

Recent last minute flight deals from Portugal to Washington

Enter your travel dates to find the best prices.

5:00 am - 4:35 pmOPO Porto-SEA Seattle/Tacoma Intl

19h 35m1 stop Amsterdam Schiphol

11:45 am - 3:25 pmSEA Seattle/Tacoma Intl-OPO Porto

19h 40m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

$881Delta

Fri, Sep 25 - Tue, Sep 29

5:00 am - 4:35 pmOPO Porto-SEA Seattle/Tacoma Intl

19h 35m1 stop Amsterdam Schiphol

6:40 pm - 10:00 pmSEA Seattle/Tacoma Intl-OPO Porto

19h 20m1 stop Paris Charles de Gaulle

$882Delta

Mon, Sep 28 - Mon, Oct 5

5:00 am - 11:47 amOPO Porto-SEA Seattle/Tacoma Intl

14h 47m1 stop Amsterdam Schiphol

7:15 am - 10:40 amSEA Seattle/Tacoma Intl-OPO Porto

19h 25m2 stops Chicago O'Hare Intl Amsterdam Schiphol

$887Delta

Mon, Sep 28 - Sun, Oct 4

5:00 am - 7:04 pmOPO Porto-SEA Seattle/Tacoma Intl

22h 04m2 stops Amsterdam Schiphol Portland

11:45 am - 3:25 pmSEA Seattle/Tacoma Intl-OPO Porto

19h 40m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

$888Delta

Mon, Sep 28 - Mon, Oct 5

5:00 am - 7:04 pmOPO Porto-SEA Seattle/Tacoma Intl

22h 04m2 stops Amsterdam Schiphol Portland

1:42 pm - 3:30 pmSEA Seattle/Tacoma Intl-OPO Porto

17h 48m2 stops Minneapolis St Paul Amsterdam Schiphol

$893Delta

Mon, Sep 28 - Tue, Oct 6

10:00 pm - 2:00 pmOPO Porto-SEA Seattle/Tacoma Intl

24h 00m2 stops Barcelona-El Prat London Heathrow

1:30 pm - 8:25 pmSEA Seattle/Tacoma Intl-OPO Porto

22h 55m3 stops Paris Charles de Gaulle London Heathrow Lisbon Humberto Delgado

$899Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

8:35 am - 11:15 amOPO Porto-SEA Seattle/Tacoma Intl

34h 40m3 stops Barcelona-El Prat London Gatwick Paris Charles de Gaulle

1:30 pm - 8:00 amSEA Seattle/Tacoma Intl-OPO Porto

34h 30m3 stops Paris Charles de Gaulle London Gatwick Barcelona-El Prat

$910Multiple Airlines

Fri, Sep 25 - Tue, Sep 29

8:20 am - 9:36 pmOPO Porto-SEA Seattle/Tacoma Intl

21h 16m2 stops Madrid Barajas Chicago O'Hare Intl

12:02 pm - 4:00 pmSEA Seattle/Tacoma Intl-OPO Porto

19h 58m2 stops Dallas/Fort Worth Madrid Barajas

$978American Airlines

Fri, Sep 25 - Tue, Sep 29

10:05 pm - 2:00 pmOPO Porto-SEA Seattle/Tacoma Intl

23h 55m2 stops Barcelona-El Prat London Heathrow

1:30 pm - 8:45 pmSEA Seattle/Tacoma Intl-OPO Porto

23h 15m3 stops Paris Charles de Gaulle London Gatwick Cologne Köln/Bonn

$1,035Multiple Airlines

Mon, Sep 28 - Sun, Oct 4

7:45 pm - 11:47 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

24h 02m1 stop Amsterdam Schiphol

10:35 am - 10:55 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

16h 20m2 stops Portland Amsterdam Schiphol

$1,148KLM

Sat, Sep 26 - Sat, Oct 3

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Icelandair flights from Portugal to State of Washington

Our best Icelandair deals on Portugal to State of Washington flight tickets

Icelandair

Nov 8

LIS2:00 pmLisbon Humberto Delgado

35h 00m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Nov 23

SEA2:35 pmSeattle/Tacoma Intl

14h 15m

1 stop

LIS12:50 pmLisbon Humberto Delgado

$806

Icelandair

Nov 8

LIS2:00 pmLisbon Humberto Delgado

35h 00m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Nov 23

SEA2:35 pmSeattle/Tacoma Intl

14h 15m

1 stop

LIS12:50 pmLisbon Humberto Delgado

$810

KLM flights from Portugal to State of Washington

Our best KLM deals on Portugal to State of Washington flight tickets

KLM

Oct 5

FAO9:45 pmFaro

22h 07m

1 stop

SEA11:52 amSeattle/Tacoma Intl

Oct 12

SEA1:45 pmSeattle/Tacoma Intl

19h 40m

1 stop

FAO5:25 pmFaro

$886

KLM

Oct 12

OPO7:55 pmPorto

23h 57m

1 stop

SEA11:52 amSeattle/Tacoma Intl

Oct 21

SEA10:37 amSeattle/Tacoma Intl

16h 03m

2 stops

OPO10:40 amPorto

$891

KLM

Oct 5

FAO9:45 pmFaro

27h 00m

2 stops

SEA4:45 pmSeattle/Tacoma Intl

Oct 12

SEA11:05 amSeattle/Tacoma Intl

22h 20m

2 stops

FAO5:25 pmFaro

$892

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

FaroSeattle

FAO Faro - SEA Seattle/Tacoma Intl

FAOSEA

Faro

Thu 10/8

6:35 am-8:40 pm

2 stops22h 05m

Seattle/Tacoma Intl

Mon 10/12

3:40 pm-7:15 pm

2 stops19h 35m

$595

PortoSeattle

OPO Porto - SEA Seattle/Tacoma Intl

OPOSEA

Porto

Wed 10/21

6:35 am-7:00 pm

2 stops20h 25m

Seattle/Tacoma Intl

Wed 11/11

6:45 pm-8:30 pm

1 stop17h 45m

$691

FaroSeattle

FAO Faro - SEA Seattle/Tacoma Intl

FAOSEA

Faro

Mon 11/2

7:20 pm-2:50 pm

1 stop27h 30m

Seattle/Tacoma Intl

Sun 11/8

7:24 am-6:45 pm

2 stops27h 21m

$699

PortoSeattle

OPO Porto - SEA Seattle/Tacoma Intl

OPOSEA

Porto

Thu 11/5

6:10 am-5:00 pm

1 stop18h 50m

Seattle/Tacoma Intl

Mon 11/9

6:45 pm-7:00 pm

1 stop16h 15m

$704

FaroSeattle

FAO Faro - SEA Seattle/Tacoma Intl

FAOSEA

Faro

Mon 10/5

9:45 pm-11:52 am

1 stop22h 07m

Seattle/Tacoma Intl

Mon 10/12

1:45 pm-5:25 pm

1 stop19h 40m

$886

FaroSeattle

FAO Faro - SEA Seattle/Tacoma Intl

FAOSEA

Faro

Mon 11/2

7:10 pm-11:47 am

1 stop24h 37m

Seattle/Tacoma Intl

Sun 11/8

2:35 pm-1:50 pm

1 stop15h 15m

$886

FaroSeattle

FAO Faro - SEA Seattle/Tacoma Intl

FAOSEA

Faro

Mon 10/5

9:45 pm-11:52 am

1 stop22h 07m

Seattle/Tacoma Intl

Mon 10/12

11:05 am-5:25 pm

2 stops22h 20m

$886

Quickest round-trip

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Fri 3/5

5:00 am-11:35 am

1 stop14h 35m

Seattle/Tacoma Intl

Wed 3/10

7:15 am-11:20 am

2 stops20h 05m

$888

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Wed 10/21

5:00 am-4:35 pm

1 stop19h 35m

Seattle/Tacoma Intl

Wed 10/28

11:05 am-3:10 pm

2 stops21h 05m

$888

PortoSpokane

OPO Porto - GEG Spokane

OPOGEG

Porto

Sun 10/11

5:55 am-11:50 pm

2 stops25h 55m

Spokane

Sat 10/17

4:30 pm-10:00 pm

2 stops21h 30m

$1,133

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 Portugal to State of Washington

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 State of Washington?

The month of February is, on average, the cheapest month to fly to State of Washington from Portugal, with most prices found around $897. If you aren’t able to travel to State of Washington during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $950.

Can stopping save me money on Portugal to State of Washington flights?

You could potentially save up to 13% on your flight if you consider stops on a Portugal to State of Washington flight.

Cheap Portugal to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to State of Washington

Best Price Found	$424
Fastest flight time	14h 10m
Direct flights	None

The best one-way flight to State of Washington from Portugal in the past 72 hours is $424. The best round-trip flight deal from Portugal to State of Washington found on momondo in the last 72 hours is $595.

The fastest flight from Portugal to State of Washington takes 14h 10m

There are no direct flights from Portugal to State of Washington. There are no popular flight routes from Portugal to State of Washington.

Search flight deals

Frequently asked questions about flying from Portugal to Washington

When did momondo last update prices for flights from Portugal to Washington?
Prices for flights from Portugal to Washington were last updated today.
How many operators does momondo search for flights from Portugal to Washington?
The number of operators available for flights from Portugal to Washington is 2 as of September 2026.
How old do you have to be to fly from Portugal to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portugal to State of Washington

Compare and see reviews for airlines that fly from Portugal to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $895	Free Cancellation	Rating 7.8 1,575 reviews		Search KLM flights
Delta	PriceFrom $973	Free Cancellation	Rating 7.8 8,590 reviews		Search Delta flights

Why use momondo?

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

It is quick and easy to find Portugal to Washington 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 Washington that suits you.

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

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

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

Once all potential Portugal to Washington 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 Portugal to Washington right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington from Portugal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.