$258 Find Cheap Flights from Washington to Portugal

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Portugal

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$258
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 27% increase in price.
Flight from Seattle to Lisbon

FAQs for booking flights from Washington to Portugal

  • How does KAYAK find such low prices on flights from Washington to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Portugal?

    Based on KAYAK data, the cheapest day to fly to Portugal is Monday where round-trip tickets can be as cheap as $908. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,111 on average.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally in the evening, when round-trip flights cost $959 on average. Morning departures are around 8% more expensive than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,074.

  • What is the cheapest month to fly from Washington to Portugal?

    The cheapest month for flights from Washington to Portugal is February, when tickets cost $719 (return) on average. On the other hand, the most expensive months are April and June, when the average cost of round-trip tickets is $1,306 and $1,279 respectively.

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

    To get a below average price on the flight from Washington to Portugal, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

  • How long is the flight to Portugal?

    An average nonstop flight from Washington to Portugal takes 19h 21m, covering a distance of 5013 miles. The shortest route is Seattle (SEA) to Lisbon (LIS) with an average flight time of 13h 50m.

  • What are the most popular destinations in Portugal?

    Based on KAYAK flight searches, the most popular destination is Lisbon (79% of total searches to Portugal). The next most popular destinations are Porto (14%) and Faro (2%). Searches for flights to Ponta Delgada (2%), to Funchal (1%) and to Lajes (1%) are also popular.

Book cheap flights from Washington to Portugal

Recent round-trip flight deals

8/5Tue
1 stop
17h 55mSEA-FAO
8/12Tue
1 stop
19h 30mFAO-SEA
$485
12/6Sat
2 stops
19h 05mSEA-LIS
12/16Tue
1 stop
15h 10mLIS-SEA
$506
12/6Sat
2 stopsUnited Airlines
16h 50mSEA-LIS
12/16Tue
2 stopsUnited Airlines
36h 37mLIS-SEA
$522
11/5Wed
2 stopsAir Canada
29h 20mSEA-LIS
11/24Mon
2 stopsAir Canada
25h 06mLIS-SEA
$524
8/16Sat
1 stopIcelandair
22h 35mSEA-LIS
8/24Sun
1 stopIcelandair
20h 10mLIS-SEA
$526
10/29Wed
1 stopUnited Airlines
19h 15mSEA-LIS
11/11Tue
1 stopUnited Airlines
15h 10mLIS-SEA
$529
10/30Thu
2 stopsAir Canada
20h 30mSEA-LIS
11/8Sat
2 stopsAir Canada
30h 11mLIS-SEA
$531
10/25Sat
2 stopsLufthansa
17h 10mSEA-LIS
11/1Sat
2 stopsLufthansa
39h 56mLIS-SEA
$537
11/1Sat
1 stopIcelandair
21h 35mPDX-LIS
11/13Thu
1 stopIcelandair
27h 40mLIS-PDX
$564
10/24Fri
1 stopLufthansa
19h 00mSEA-LIS
11/14Fri
1 stopLufthansa
31h 40mLIS-SEA
$565

Search by stops

Search by airline

Search by price

Recent one-way flight deals

10/7Tue
2 stops
19h 10mSEA-LIS
$258
10/12Sun
2 stops
22h 15mSEA-LIS
$260
10/14Tue
2 stops
22h 45mSEA-LIS
$263
7/30Wed
1 stopIcelandair
18h 20mSEA-LIS
$323
8/4Mon
1 stopSWISS
31h 30mSEA-OPO
$329
10/17Fri
1 stopLufthansa
23h 45mSEA-LIS
$345
10/13Mon
1 stopAir Canada
18h 05mSEA-LIS
$352
10/15Wed
1 stopAir Canada
19h 35mSEA-LIS
$359
10/15Wed
1 stopIcelandair
22h 00mPDX-LIS
$374
10/16Thu
1 stopLufthansa
17h 25mSEA-OPO
$524

Search by stops

Search by airline

Search by price

Last minute flights from Washington to Portugal

Last minute flight, train and bus deals

7/10Thu
multi-stopTAP AIR PORTUGAL
26h 35mPDX-LIS
7/12Sat
multi-stopTAP AIR PORTUGAL
41h 30mLIS-PDX
$1,071
7/11Fri
multi-stop
25h 00mSEA-LIS
9/4Thu
multi-stop
26h 28mLIS-SEA
$1,157
7/11Fri
multi-stop
25h 00mSEA-LIS
9/4Thu
multi-stop
34h 24mLIS-SEA
$1,166
7/10Thu
multi-stopTurkish Airlines
37h 25mSEA-LIS
7/29Tue
multi-stopTurkish Airlines
32h 30mLIS-SEA
$1,272
7/11Fri
multi-stopTurkish Airlines
30h 45mSEA-LIS
9/4Thu
multi-stopTurkish Airlines
19h 20mLIS-SEA
$1,293
7/9Wed
multi-stopIcelandair
38h 35mSEA-LIS
7/31Thu
multi-stopIcelandair
21h 05mLIS-SEA
$1,553
7/9Wed
multi-stopIcelandair
21h 35mSEA-LIS
7/31Thu
multi-stopIcelandair
21h 05mLIS-SEA
$1,591
7/8Tue
multi-stopKLM
18h 00mSEA-OPO
8/5Tue
multi-stopKLM
16h 15mOPO-SEA
$2,317
7/8Tue
multi-stopDelta
19h 45mSEA-OPO
8/5Tue
multi-stopDelta
16h 15mOPO-SEA
$2,322
7/9Wed
multi-stopKLM
13h 25mPDX-OPO
7/10Thu
multi-stopKLM
22h 45mOPO-PDX
$3,008

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Portugal

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.