OPO - WAS

$374 Find Cheap Flights from Porto to Washington, D.C. - Compare and Save

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Everything you should know

Cheapest round-trip
$584
Typical prices: $602-$847
Multiple Airlines
Mon 11/19Sun 12/2
OPO - IAD • 3 stops
Cheapest one-way
$374
Typical prices: $494-$753
Multiple Airlines
Thu 2/1
OPO - IAD • 2 stops
Nonstop flights
There are currently no direct flights between Porto and Washington, D.C.. You'll need to take a connecting flight to reach the destination.
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Top routes
Cheapest • 8% average savings
Most popular
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When to travel
Cheapest • 30% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $597 (round-trip)
Shortest trip • 10h 29m (one-way)
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We hope you love your trip to Washington, D.C.!
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Flight Deals

Cheap Flights from Porto to Washington, D.C. (OPO-WAS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Porto to Washington, D.C.

Thu, Nov 19 - Wed, Dec 2
Multiple Airlines Logo
11:35 am - 3:08 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
32h 33m3 stops Madrid Barajas Miami Atlanta Hartsfield-Jackson
Multiple Airlines Logo
12:06 pm - 7:20 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
26h 14m3 stops Atlanta Hartsfield-Jackson Miami Madrid Barajas
$584Multiple Airlines
Thu, Nov 19 - Wed, Dec 2
Multiple Airlines Logo
11:35 am - 3:08 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
32h 33m3 stops Madrid Barajas Miami Atlanta Hartsfield-Jackson
Multiple Airlines Logo
12:06 pm - 7:20 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
26h 14m3 stops Atlanta Hartsfield-Jackson Miami Madrid Barajas
$602Multiple Airlines
Thu, Nov 19 - Wed, Dec 2
Lufthansa Logo
6:00 am - 3:55 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
14h 55m1 stop Frankfurt am Main
Lufthansa Logo
10:55 pm - 11:55 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
20h 00m1 stop Munich Franz Josef Strauss
$604Lufthansa
Thu, Nov 19 - Wed, Dec 2
Lufthansa Logo
6:00 am - 3:55 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
14h 55m1 stop Frankfurt am Main
Lufthansa Logo
10:55 pm - 11:55 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
20h 00m1 stop Munich Franz Josef Strauss
$608Lufthansa
Thu, Nov 19 - Wed, Dec 2
TAP AIR PORTUGAL Logo
5:00 am - 3:15 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
15h 15m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
10:30 pm - 10:00 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
18h 30m1 stop Lisbon Humberto Delgado
$613TAP AIR PORTUGAL
Thu, Nov 19 - Wed, Dec 2
TAP AIR PORTUGAL Logo
8:30 am - 3:15 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
11h 45m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
10:30 pm - 5:00 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
13h 30m1 stop Lisbon Humberto Delgado
$629TAP AIR PORTUGAL
Thu, Nov 19 - Wed, Dec 2
TAP AIR PORTUGAL Logo
8:30 am - 3:15 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
11h 45m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
10:30 pm - 1:30 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
10h 00m1 stop Lisbon Humberto Delgado
$631TAP AIR PORTUGAL
Tue, Jan 26 - Mon, Feb 8
TAP AIR PORTUGAL Logo
7:00 am - 2:40 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
12h 40m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
5:25 pm - 10:00 amIAD  Washington, D.C. Dulles Intl-OPO Porto
11h 35m1 stop Lisbon Humberto Delgado
$632TAP AIR PORTUGAL
Tue, Jan 26 - Thu, Feb 11
TAP AIR PORTUGAL Logo
7:00 am - 2:40 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
12h 40m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
5:25 pm - 3:00 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
16h 35m1 stop Lisbon Humberto Delgado
$632TAP AIR PORTUGAL
Thu, Nov 19 - Wed, Dec 2
Lufthansa Logo
6:00 am - 3:55 pmOPO  Porto-IAD Washington, D.C. Dulles Intl
14h 55m1 stop Frankfurt am Main
Lufthansa Logo
10:55 pm - 11:55 pmIAD  Washington, D.C. Dulles Intl-OPO Porto
20h 00m1 stop Munich Franz Josef Strauss
$637Lufthansa
Booking Insights

Price, demand and travel trends for Porto to Washington, D.C. flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What is the cheapest Porto to Washington, D.C. flight route?

Porto (OPO) to Washington, D.C. Dulles Intl Airport (IAD) is the cheapest Porto to Washington, D.C. route, averaging $711 round-trip. Other Porto to Washington, D.C. routes average $839, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Porto to Washington, D.C.?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Porto to Washington, D.C.. It’s 8% cheaper than the average day, while Sunday is the most expensive, with prices 18% higher.

What’s the cheapest month to fly from Porto to Washington, D.C.?

•March is the cheapest month to fly from Porto to Washington, D.C. at $501 round-trip.
•January ($1,077) and July ($901) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 114% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Key details for Porto to Washington, D.C. flights

Low season

January

Cheapest flight

$374
Beat the crowds with an average 46% drop in travelers.
The most popular month to fly with an average 44% increase in travelers.
One-way flight from Porto to Washington, D.C. Dulles Intl Airport

When to book flights from Porto to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Porto to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Porto to Washington, D.C. flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Porto to Washington, D.C.?

    Three cabin classes are available on flights from Porto to Washington, D.C.:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Porto to Washington, D.C.?

    A nonstop flight from Porto to Washington, D.C. takes 00m, covering 3,518 miles.

  • Do I need a passport to fly from Porto to Washington, D.C.?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Porto to Washington, D.C. flight?

    Round-trip flights from Porto to Washington, D.C. range from $602 to $847, with an average of $717 over the past 12 months. Anything below $602 counts as a good deal.

  • How are flight prices from Porto to Washington, D.C. looking right now?

    One-way fares from Porto to Washington, D.C. are currently lower than usual. Average one-way flight prices are about $401, which is 36% below the typical average for this route.

  • What car rental options are available in Washington, D.C.?

    Since Washington, D.C. is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Washington, D.C. Reagan-National Airport (DCA) — daily rates from around $24:

    • Sixt
    • Dollar
    • Thrifty
    • Hertz
    • Alamo

    Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates from around $24:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • Which airports can I use when flying from Porto to Washington, D.C.?

    Flights from Porto to Washington, D.C. usually depart from Porto (OPO) and may arrive at several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD).

  • Which airports do connecting flights from Porto to Washington, D.C. pass through?

    One-stop flights from Porto to Washington, D.C. most commonly connect through:

    • Lisbon Humberto Delgado (LIS) - 38% of one-stop connections
    • Madrid Barajas (MAD) - 21% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 15% of one-stop connections
    • Frankfurt am Main (FRA) - 13% of one-stop connections

  • Can I save money by using flexible dates for flights from Porto to Washington, D.C.?

    Yes. Flexible dates can save you up to 23% on flights from Porto to Washington, D.C.. Monday is the cheapest departure day at $664 round-trip on average, while Sunday is the most expensive at $852, a difference of $188.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Porto to Washington, D.C.?

    Flying via New York John F Kennedy Intl (JFK) gives the shortest average 1-stop total travel time at 10h 29m, compared with 10h 40m via Newark (EWR) and 10h 42m via Montreal Pierre Elliott Trudeau Intl (YUL).

  • What is the time difference between Porto and Washington, D.C.?

    Washington, D.C. is 4 hours behind Porto (Eastern Time vs Western European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Washington, D.C.?

    Some of the most popular sights in Washington, D.C. are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. on KAYAK.

Your guide to booking Porto to Washington, D.C. flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Sunday. On this route, Monday flights average $664, about $188 less than Sunday fares (22% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Porto to Washington, D.C. trip for March. Fares historically average $501 round-trip in that month - typically $576 less than the most expensive month, which is January (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Washington, D.C. Reagan-National Airport.

    • Hyatt House Washington DC The Wharf
    • Intercontinental Hotels Washington D.C. - The Wharf By IHG
    • Canopy by Hilton Washington D.C - The Wharf

More options for your flight from Porto to Washington, D.C.

Complete your trip to Washington, D.C. with a hotel stay or car rental