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 14h 15m and 22h 03m, respectively.

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

WestJet, British Airways, and Finnair 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 3 as of May 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.

$406 Cheap Flights from Portugal to Washington in 2026

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Find the cheapest flights from Portugal to Washington

Round-trip

One-way

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Recent round-trip flight deals from Portugal to Washington

Enter your travel dates to find the best prices.

10:15 pm - 5:10 pm

LIS

SEA

26h 55m

1 stop

7:10 pm - 9:35 pm

SEA

LIS

18h 25m

1 stop

$762Aer Lingus

Sun, May 24 - Mon, Jun 8

10:15 pm - 5:10 pm

LIS

SEA

26h 55m

1 stop

7:10 pm - 9:35 pm

SEA

LIS

18h 25m

1 stop

$765Aer Lingus

Sun, May 24 - Mon, Jun 8

9:15 pm - 1:45 pm

LIS

SEA

24h 30m

1 stop

3:55 pm - 10:05 pm

SEA

LIS

22h 10m

1 stop

$852Scandinavian Airlines

Fri, May 29 - Fri, Jun 5

9:15 pm - 1:45 pm

LIS

SEA

24h 30m

1 stop

3:55 pm - 10:05 pm

SEA

LIS

22h 10m

1 stop

$854Scandinavian Airlines

Fri, May 29 - Fri, Jun 5

6:10 am - 9:40 am

LIS

SEA

35h 30m

2 stops

5:45 am - 9:45 pm

SEA

LIS

32h 00m

3 stops

$860Multiple Airlines

Thu, Jun 4 - Sun, Jun 14

6:40 am - 5:10 pm

LIS

SEA

18h 30m

1 stop

7:10 pm - 8:50 pm

SEA

LIS

17h 40m

1 stop

$864Multiple Airlines

Mon, Jun 1 - Fri, Jun 12

6:00 am - 9:56 pm

OPO

SEA

23h 56m

2 stops

7:00 am - 9:45 am

SEA

OPO

18h 45m

2 stops

$992United Airlines

Thu, Sep 10 - Mon, Sep 28

6:00 am - 6:59 pm

OPO

SEA

19h 59m

2 stops

8:30 am - 9:30 am

SEA

OPO

17h 00m

2 stops

$998United Airlines

Wed, Oct 28 - Sat, Nov 21

5:00 am - 11:10 am

LIS

PDX

14h 10m

1 stop

9:20 am - 2:55 pm

PDX

LIS

21h 35m

2 stops

$1,008Delta

Thu, May 21 - Sat, Jun 6

5:00 am - 11:10 am

LIS

PDX

14h 10m

1 stop

12:23 pm - 5:50 pm

PDX

LIS

21h 27m

2 stops

$1,009Delta

Tue, Jun 9 - Mon, Jun 15

Scandinavian Airlines flights from Portugal to State of Washington

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

Scandinavian Airlines

May 29

LIS9:15 pmLisbon Humberto Delgado

24h 30m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Jun 5

SEA3:55 pmSeattle/Tacoma Intl

22h 10m

1 stop

LIS10:05 pmLisbon Humberto Delgado

$852

Scandinavian Airlines

May 29

LIS9:15 pmLisbon Humberto Delgado

24h 30m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Jun 5

SEA3:55 pmSeattle/Tacoma Intl

22h 10m

1 stop

LIS10:05 pmLisbon Humberto Delgado

$854

Scandinavian Airlines

May 22

LIS9:15 pmLisbon Humberto Delgado

24h 30m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Jun 5

SEA3:55 pmSeattle/Tacoma Intl

22h 10m

1 stop

LIS10:05 pmLisbon Humberto Delgado

$901

Aer Lingus flights from Portugal to State of Washington

Our best Aer Lingus deals on Portugal to State of Washington flight tickets

Aer Lingus

May 24

LIS10:15 pmLisbon Humberto Delgado

26h 55m

1 stop

SEA5:10 pmSeattle/Tacoma Intl

Jun 8

SEA7:10 pmSeattle/Tacoma Intl

18h 25m

1 stop

LIS9:35 pmLisbon Humberto Delgado

$762

Aer Lingus

May 24

LIS10:15 pmLisbon Humberto Delgado

26h 55m

1 stop

SEA5:10 pmSeattle/Tacoma Intl

Jun 8

SEA7:10 pmSeattle/Tacoma Intl

18h 25m

1 stop

LIS9:35 pmLisbon Humberto Delgado

$765

Aer Lingus

Jun 6

LIS10:15 pmLisbon Humberto Delgado

26h 55m

1 stop

SEA5:10 pmSeattle/Tacoma Intl

Jun 15

SEA7:10 pmSeattle/Tacoma Intl

18h 25m

1 stop

LIS9:35 pmLisbon Humberto Delgado

$795

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 5/24

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Mon 6/8

7:10 pm-9:35 pm

1 stop18h 25m

$762

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Sun 5/24

10:15 pm-5:10 pm

1 stop26h 55m

Seattle/Tacoma Intl

Mon 6/8

7:10 pm-9:35 pm

1 stop18h 25m

$765

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 5/29

9:15 pm-1:45 pm

1 stop24h 30m

Seattle/Tacoma Intl

Fri 6/5

3:55 pm-10:05 pm

1 stop22h 10m

$852

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Fri 5/29

9:15 pm-1:45 pm

1 stop24h 30m

Seattle/Tacoma Intl

Fri 6/5

3:55 pm-10:05 pm

1 stop22h 10m

$854

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Thu 6/4

6:10 am-9:40 am

2 stops35h 30m

Seattle/Tacoma Intl

Sun 6/14

5:45 am-9:45 pm

3 stops32h 00m

$860

LisbonSeattle

LIS - SEA

LISSEA

Lisbon Humberto Delgado

Mon 6/1

6:40 am-5:10 pm

1 stop18h 30m

Seattle/Tacoma Intl

Fri 6/12

7:10 pm-8:50 pm

1 stop17h 40m

$864

PortoSeattle

OPO - SEA

OPOSEA

Porto

Thu 9/10

6:00 am-9:56 pm

2 stops23h 56m

Seattle/Tacoma Intl

Mon 9/28

7:00 am-9:45 am

2 stops18h 45m

$992

PortoSeattle

OPO - SEA

OPOSEA

Porto

Wed 10/28

6:00 am-6:59 pm

2 stops19h 59m

Seattle/Tacoma Intl

Sat 11/21

8:30 am-9:30 am

2 stops17h 00m

$998

LisbonPortland

LIS - PDX

LISPDX

Lisbon Humberto Delgado

Thu 5/21

5:00 am-11:10 am

1 stop14h 10m

Portland

Sat 6/6

9:20 am-2:55 pm

2 stops21h 35m

$1,008

Quickest round-trip

LisbonPortland

LIS - PDX

LISPDX

Lisbon Humberto Delgado

Tue 6/9

5:00 am-11:10 am

1 stop14h 10m

Portland

Mon 6/15

12:23 pm-5:50 pm

2 stops21h 27m

$1,009

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 September is, on average, the cheapest month to fly to State of Washington from Portugal, with most prices found around $553. If you aren’t able to travel to State of Washington during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $753.

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

You could potentially save up to 4% 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

Fastest flight time	14h 10m
Direct flights	None

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.

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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 3 as of May 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
Delta	PriceFrom $1,019	Free Cancellation	Rating 7.9 8,451 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.