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 17h 55m and 32h 45m, respectively.

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

Delta, KLM, and Aer Lingus 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 November 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.

$352 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.

2:40 pm - 5:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

34h 20m2 stops London Heathrow Reykjavik Keflavik Intl

2:35 pm - 10:30 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

35h 55m3 stops Reykjavik Keflavik Intl London Heathrow Amsterdam Schiphol

$701Multiple Airlines

Tue, Jan 12 - Thu, Jan 28

2:40 pm - 5:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

34h 20m2 stops London Heathrow Reykjavik Keflavik Intl

2:35 pm - 3:15 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

16h 40m2 stops Reykjavik Keflavik Intl London Heathrow

$722Multiple Airlines

Tue, Jan 12 - Thu, Jan 28

3:35 pm - 5:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

33h 25m3 stops Amsterdam Schiphol Stockholm Arlanda Reykjavik Keflavik Intl

2:35 pm - 10:30 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

35h 55m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Amsterdam Schiphol

$800Multiple Airlines

Tue, Jan 12 - Thu, Jan 28

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

13h 25m1 stop Reykjavik Keflavik Intl

2:35 pm - 12:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

14h 15m1 stop Reykjavik Keflavik Intl

$831Icelandair

Tue, Jan 26 - Sat, Feb 13

2:00 pm - 5:00 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

35h 00m1 stop Reykjavik Keflavik Intl

2:35 pm - 12:50 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

14h 15m1 stop Reykjavik Keflavik Intl

$833Icelandair

Thu, Jan 28 - Sat, Feb 13

5:00 am - 11:50 amOPO Porto-SEA Seattle/Tacoma Intl

14h 50m1 stop Amsterdam Schiphol

7:38 am - 10:35 amSEA Seattle/Tacoma Intl-OPO Porto

18h 57m2 stops Boston Logan Intl Paris Charles de Gaulle

$972Delta

Mon, Dec 7 - Sun, Dec 13

5:00 am - 2:43 pmOPO Porto-SEA Seattle/Tacoma Intl

17h 43m2 stops Amsterdam Schiphol Salt Lake City

7:38 am - 10:35 amSEA Seattle/Tacoma Intl-OPO Porto

18h 57m2 stops Boston Logan Intl Paris Charles de Gaulle

$977Delta

Mon, Dec 7 - Sun, Dec 13

5:00 am - 11:47 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 47m1 stop Amsterdam Schiphol

7:27 am - 10:30 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

19h 03m2 stops Chicago O'Hare Intl Amsterdam Schiphol

$988Delta

Thu, Nov 26 - Sun, Nov 29

5:00 am - 11:50 amLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

14h 50m1 stop Amsterdam Schiphol

7:31 am - 11:20 amSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

19h 49m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

$990Delta

Fri, Jan 29 - Wed, Feb 10

8:10 pm - 11:50 amFAO Faro-SEA Seattle/Tacoma Intl

23h 40m1 stop Amsterdam Schiphol

2:35 pm - 7:25 pmSEA Seattle/Tacoma Intl-FAO Faro

20h 50m1 stop Amsterdam Schiphol

$1,095KLM

Fri, Dec 25 - Wed, Dec 30

Recent last minute flight deals from Portugal to Washington

Enter your travel dates to find the best prices.

4:10 pm - 5:10 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

33h 00m1 stop Istanbul

7:05 pm - 11:25 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

20h 20m1 stop Istanbul

$945Turkish Airlines

Sun, Nov 15 - Sat, Nov 28

11:35 am - 5:10 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

37h 35m1 stop Istanbul

7:05 pm - 11:25 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

20h 20m1 stop Istanbul

$953Turkish Airlines

Sat, Nov 14 - Fri, Nov 27

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

24h 37m1 stop Amsterdam Schiphol

7:27 am - 1:50 pmSEA Seattle/Tacoma Intl-FAO Faro

22h 23m2 stops Chicago O'Hare Intl Amsterdam Schiphol

$981KLM

Mon, Nov 16 - Sun, Nov 22

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

$981KLM

Mon, Nov 16 - Sun, Nov 22

10:55 am - 5:10 pmOPO Porto-SEA Seattle/Tacoma Intl

38h 15m1 stop Istanbul

7:05 pm - 9:55 amSEA Seattle/Tacoma Intl-OPO Porto

30h 50m1 stop Istanbul

$1,056Turkish Airlines

Sat, Nov 14 - Fri, Nov 20

8:20 am - 8:19 pmLIS Lisbon Humberto Delgado-SEA Seattle/Tacoma Intl

19h 59m2 stops Madrid Barajas Chicago O'Hare Intl

6:45 pm - 5:55 pmSEA Seattle/Tacoma Intl-LIS Lisbon Humberto Delgado

15h 10m1 stop London Heathrow

$1,062American Airlines

Sat, Nov 14 - Fri, Nov 27

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

20h 10m2 stops Amsterdam Schiphol Minneapolis St Paul

7:15 am - 10:35 amSEA Seattle/Tacoma Intl-OPO Porto

19h 20m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

$1,170Delta

Sat, Nov 14 - Fri, Nov 20

5:55 am - 1:50 pmOPO Porto-SEA Seattle/Tacoma Intl

15h 55m1 stop Paris Charles de Gaulle

7:15 am - 10:35 amSEA Seattle/Tacoma Intl-OPO Porto

19h 20m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

$1,171Delta

Sat, Nov 14 - Fri, Nov 20

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

14h 47m1 stop Amsterdam Schiphol

7:15 am - 10:35 amSEA Seattle/Tacoma Intl-OPO Porto

19h 20m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

$1,273Delta

Sat, Nov 14 - Fri, Nov 20

5:00 am - 6:41 pmOPO Porto-SEA Seattle/Tacoma Intl

21h 41m2 stops Amsterdam Schiphol Salt Lake City

7:15 am - 10:35 amSEA Seattle/Tacoma Intl-OPO Porto

19h 20m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

$1,278Delta

Sat, Nov 14 - Fri, Nov 20

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Turkish Airlines flights from Portugal to State of Washington

Our best Turkish Airlines deals on Portugal to State of Washington flight tickets

Turkish Airlines

Nov 21

LIS5:55 amLisbon Humberto Delgado

49h 12m

2 stops

SEA11:07 pmSeattle/Tacoma Intl

Dec 2

SEA10:48 amSeattle/Tacoma Intl

28h 37m

2 stops

LIS11:25 pmLisbon Humberto Delgado

$910

Turkish Airlines

Nov 21

OPO4:25 pmPorto

38h 42m

2 stops

SEA11:07 pmSeattle/Tacoma Intl

Dec 2

SEA10:48 amSeattle/Tacoma Intl

44h 37m

2 stops

OPO3:25 pmPorto

$920

Turkish Airlines

Dec 24

LIS11:35 amLisbon Humberto Delgado

37h 35m

1 stop

SEA5:10 pmSeattle/Tacoma Intl

Dec 31

SEA10:55 amSeattle/Tacoma Intl

28h 30m

2 stops

LIS11:25 pmLisbon Humberto Delgado

$929

Delta flights from Portugal to State of Washington

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

Delta

Dec 7

OPO5:00 amPorto

14h 50m

1 stop

SEA11:50 amSeattle/Tacoma Intl

Dec 13

SEA7:38 amSeattle/Tacoma Intl

18h 57m

2 stops

OPO10:35 amPorto

$972

Delta

Dec 7

OPO5:00 amPorto

17h 43m

2 stops

SEA2:43 pmSeattle/Tacoma Intl

Dec 13

SEA7:38 amSeattle/Tacoma Intl

18h 57m

2 stops

OPO10:35 amPorto

$977

Delta

Nov 21

OPO5:00 amPorto

14h 47m

1 stop

SEA11:47 amSeattle/Tacoma Intl

Dec 2

SEA3:25 pmSeattle/Tacoma Intl

22h 35m

1 stop

OPO10:00 pmPorto

$982

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

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 1/12

2:40 pm-5:00 pm

2 stops34h 20m

Seattle/Tacoma Intl

Thu 1/28

2:35 pm-10:30 am

3 stops35h 55m

$701

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 1/12

2:40 pm-5:00 pm

2 stops34h 20m

Seattle/Tacoma Intl

Thu 1/28

2:35 pm-3:15 pm

2 stops16h 40m

$722

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 1/12

3:35 pm-5:00 pm

3 stops33h 25m

Seattle/Tacoma Intl

Thu 1/28

2:35 pm-10:30 am

3 stops35h 55m

$800

Quickest round-trip

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Tue 1/26

11:35 am-5:00 pm

1 stop13h 25m

Seattle/Tacoma Intl

Sat 2/13

2:35 pm-12:50 pm

1 stop14h 15m

$831

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Thu 1/28

2:00 pm-5:00 pm

1 stop35h 00m

Seattle/Tacoma Intl

Sat 2/13

2:35 pm-12:50 pm

1 stop14h 15m

$833

PortoSeattle

OPO Porto - SEA Seattle/Tacoma Intl

OPOSEA

Porto

Mon 12/7

5:00 am-11:50 am

1 stop14h 50m

Seattle/Tacoma Intl

Sun 12/13

7:38 am-10:35 am

2 stops18h 57m

$972

PortoSeattle

OPO Porto - SEA Seattle/Tacoma Intl

OPOSEA

Porto

Mon 12/7

5:00 am-2:43 pm

2 stops17h 43m

Seattle/Tacoma Intl

Sun 12/13

7:38 am-10:35 am

2 stops18h 57m

$977

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Thu 11/26

5:00 am-11:47 am

1 stop14h 47m

Seattle/Tacoma Intl

Sun 11/29

7:27 am-10:30 am

2 stops19h 03m

$988

LisbonSeattle

LIS Lisbon Humberto Delgado - SEA Seattle/Tacoma Intl

LISSEA

Lisbon Humberto Delgado

Fri 1/29

5:00 am-11:50 am

1 stop14h 50m

Seattle/Tacoma Intl

Wed 2/10

7:31 am-11:20 am

2 stops19h 49m

$990

FaroSeattle

FAO Faro - SEA Seattle/Tacoma Intl

FAOSEA

Faro

Fri 12/25

8:10 pm-11:50 am

1 stop23h 40m

Seattle/Tacoma Intl

Wed 12/30

2:35 pm-7:25 pm

1 stop20h 50m

$1,095

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 December is also cheap. Prices for this month can be found on momondo for an average of $899.

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

You could potentially save up to 14% 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	$352
Fastest flight time	17h 55m
Direct flights	None

The best one-way flight to State of Washington from Portugal in the past 72 hours is $352. The best round-trip flight deal from Portugal to State of Washington found on momondo in the last 72 hours is $701.

The fastest flight from Portugal to State of Washington takes 17h 55m

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 November 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 1,599 reviews		Search KLM flights
Delta	PriceFrom $973	Free Cancellation	Rating 7.8 8,718 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.