Question 1

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

Accepted Answer

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 Porto to Washington. <a href='/flight-routes/Porto-OPO/Washington-USWA'>Visit our flight page for the latest deals!>/a>

Question 2

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

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Porto to Washington is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Porto-OPO/Washington-USWA'>Visit our flight page for the latest deals!>/a>

Question 3

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

Accepted Answer

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 Porto to Washington with an airline and back with another airline. <a href='/flight-routes/Porto-OPO/Washington-USWA'>Visit our flight page for the latest deals!>/a>

Question 4

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

Accepted Answer

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 Porto to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Porto-OPO/Washington-USWA'>Visit our flight page for the latest deals!>/a>

Question 5

Which airlines provide the cheapest flights from Porto to Washington?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Porto to Washington were found on KLM ($867) and United Airlines ($879).

Question 6

Which airlines provide the cheapest flights from Porto to Washington?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Porto to Washington were found on KLM ($867) and United Airlines ($879).

Question 7

What’s the cheapest day of the week to fly from Porto to Washington?

Accepted Answer

For Porto to Washington, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Washington back to Porto, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Question 8

What’s the cheapest day of the week to fly from Porto to Washington?

Accepted Answer

For Porto to Washington, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Washington back to Porto, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Question 9

What is the cheapest time of day to fly to Washington?

Accepted Answer

The cheapest time of day to fly to Washington is generally in the evening, when round-trip flights cost $792 on average. Morning departures are around 20% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $934.

Question 10

How long does a flight from Porto to Washington take?

Accepted Answer

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from Porto is to Seattle, which takes 18h 15m.

Question 11

How long does a flight from Porto to Washington take?

Accepted Answer

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from Porto is to Seattle, which takes 18h 15m.

Low season	October
High season	July
Cheapest flight	$549

$549 Find Cheap Flights from Porto to Washington

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

Book Cheap Porto to Washington Plane Tickets

Recent round-trip flight deals from Porto to Washington

Recent one-way flight deals from Porto to Washington

KAYAK's insights & trends for Porto to Washington flights

Get data-powered insights and trends into flights from Porto to Washington to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Porto to Washington?

For Porto to Washington, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Washington back to Porto, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Which airlines provide the cheapest flights from Porto to Washington?

In the past 3 days, the cheapest round-trip tickets from Porto to Washington were found on KLM ($867) and United Airlines ($879).

How long does a flight from Porto to Washington take?

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from Porto is to Seattle, which takes 18h 15m.

Good to know

FAQs - booking Washington flights

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

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 Porto to Washington.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Porto to Washington 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 Porto to Washington?

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 Porto to Washington 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 Porto to Washington?

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 Porto to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

What is the cheapest time of day to fly to Washington?

Everything you need to know for your flight from Porto to Washington

Information on your arrival and departure airports

Cabin class types available on flights to Washington

Complete your trip to Washington with a hotel stay or car rental

Flights to other popular destinations

Flights from other airports in Porto to Washington

Flights from Porto to popular cities in Washington

Find deals for your return flight