Cheap flights from Dulles Intl (IAD) to Porto (OPO)

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How to find the cheapest flight from
Dulles Intl (IAD) to Porto (OPO)

All the information you need to plan the best IAD to OPO flight in 2022: compare Dulles Intl to Porto flight prices with the expected peak season, weather and rainfall in Porto.
IAD - OPO
Price
$395 - $1,120
OPO
Temperature
48.2 - 68 °F
OPO
Rainfall
0.7 - 7.7 inches

Popular in

August

High demand for flights, 51% potential price rise

Cheapest in

September

Best time to find cheap flights, 28% potential price drop

Average price

$666

Average for round-trip flights in July 2022

Round-trip from

$395

From Washington, D.C. Dulles Intl to Porto

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Porto (IAD - OPO)?

When flying from Washington, D.C. Dulles Intl Airport to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Porto?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 12% on flights from Washington, D.C. Dulles Intl Airport to Porto compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $529. For sooner than that we have options available in the next 3 days from $529.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Porto?

September is one of the best times of the year to fly to Porto from Washington, D.C. Dulles Intl Airport. Prices for September average $511 per person but you can even find prices for as low as $355. The most expensive prices can be found in the month of December. Opting for a September flight can save you 75% on your journey compared to booking in December

Cheap flights from Dulles Intl to Porto in July, August 2022

The best prices found for IAD to OPO flights for July, August
9 Aug - 4 Oct
$391pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
 
1 STOP
OPO
Porto
OPO
Porto
Multiple Airlines
 
1 STOP
IAD
Washington, D.C. Dulles Intl
20 Aug - 29 Sep
$413pp
IAD
Washington, D.C. Dulles Intl
Delta
 
1 STOP
OPO
Porto
OPO
Porto
Delta
 
1 STOP
IAD
Washington, D.C. Dulles Intl
18 Jul - 12 Sep
$414pp
IAD
Washington, D.C. Dulles Intl
American Airlines
 
1 STOP
OPO
Porto
OPO
Porto
American Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl

Washington, D.C. Dulles Intl to Porto 2022 flight deals

Cheap flights to Porto from Dulles Intl found for this year
8 Oct - 13 Oct
$270pp
IAD
Washington, D.C. Dulles Intl
Iberia
 
1 STOP
OPO
Porto
OPO
Porto
Iberia
 
1 STOP
IAD
Washington, D.C. Dulles Intl
30 Sep - 3 Oct
$279pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
 
1 STOP
OPO
Porto
OPO
Porto
Multiple Airlines
 
1 STOP
IAD
Washington, D.C. Dulles Intl
30 Sep - 3 Oct
$291pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
   
2 STOPS
OPO
Porto
OPO
Porto
Multiple Airlines
 
1 STOP
IAD
Washington, D.C. Dulles Intl

Cheap Iberia flights from Dulles Intl to Porto

8 Oct - 13 Oct
$270pp
IAD
Washington, D.C. Dulles Intl
Iberia
 
1 STOP
OPO
Porto
OPO
Porto
Iberia
 
1 STOP
IAD
Washington, D.C. Dulles Intl
19 Sep - 26 Sep
$388pp
IAD
Washington, D.C. Dulles Intl
Iberia
 
1 STOP
OPO
Porto
OPO
Porto
Iberia
 
1 STOP
IAD
Washington, D.C. Dulles Intl
19 Sep - 28 Sep
$400pp
IAD
Washington, D.C. Dulles Intl
Iberia
 
1 STOP
OPO
Porto
OPO
Porto
Iberia
 
1 STOP
IAD
Washington, D.C. Dulles Intl

Cheap Lufthansa flights from Dulles Intl to Porto

4 Sep - 16 Sep
$390pp
IAD
Washington, D.C. Dulles Intl
Lufthansa
 
1 STOP
OPO
Porto
OPO
Porto
Lufthansa
 
1 STOP
IAD
Washington, D.C. Dulles Intl
4 Sep - 15 Sep
$392pp
IAD
Washington, D.C. Dulles Intl
Lufthansa
 
1 STOP
OPO
Porto
OPO
Porto
Lufthansa
 
1 STOP
IAD
Washington, D.C. Dulles Intl
4 Sep - 16 Sep
$395pp
IAD
Washington, D.C. Dulles Intl
Lufthansa
 
1 STOP
OPO
Porto
OPO
Porto
Lufthansa
 
1 STOP
IAD
Washington, D.C. Dulles Intl

Last minute flights from Dulles Intl to Porto

Late deals on round-trip flights to Porto from Dulles Intl, departing today and this week
13 Jul - 18 Jul
$754pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
OPO
Porto
OPO
Porto
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington, D.C. Dulles Intl
13 Jul - 14 Jul
$756pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
OPO
Porto
OPO
Porto
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington, D.C. Dulles Intl
13 Jul - 15 Jul
$766pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
OPO
Porto
OPO
Porto
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington, D.C. Dulles Intl

One-way flights to Porto from Washington, D.C. Dulles Intl

The cheapest one-way flights from Dulles Intl to Porto
12:35 pm - 3:45 am
Iberia
1 Stop
10h 10m
IAD - OPO
Iberia
$475
Kiwi.com
5:30 pm - 6:30 pm
Multiple Airlines
2 Stops
20h 00m
IAD - OPO
Multiple Airlines
$523
Kiwi.com
6:00 pm - 3:00 pm
TAP AIR PORTUGAL
1 Stop
16h 00m
IAD - OPO
TAP AIR PORTUGAL
$529
Gotogate

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Dulles Intl</span> to <span class="emphasized">Porto</span> flights.

Flight FAQs

From Dulles Intl to Porto

What airport do you fly into for flights to Porto from Washington, D.C. Dulles Intl?

Located just 6.8 mi from the city center, Porto is the airport most travelers will use when flying to Porto from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Porto (OPO) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 12 different airlines.

Which airlines flying from Washington, D.C. Dulles Intl to Porto have flexible cancellations due to COVID-19?

Some of our airline partners flying from Washington, D.C. Dulles Intl to Porto have new flexible policies in place due to COVID-19. TAP AIR PORTUGAL, United Airlines, and Iberia are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like TAP AIR PORTUGAL with this kind of flexibility.

Can I find flights from Washington, D.C. Dulles Intl Airport to Porto for under $300 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Porto for under $300. The cheapest flight booked recently is on Iberia for just $270, but on average you can expect to pay $360.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Porto for under $800?

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Porto within the next 7 days for less than $800.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Porto round-trip?

Currently priced at $270, Iberia will fly you from Washington, D.C. Dulles Intl Airport to Porto and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from TAP AIR PORTUGAL and Lufthansa - these airlines can fly you to your destination from $351 and $390, respectively. These flights start at 50% lower than the current average price 3 months from now.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Porto?

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Porto.

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Porto?

While on average a flight from Washington, D.C. Dulles Intl Airport to Porto is generally $1,713, our data shows the cheapest flight currently is $391. When looking at the most popular route, (Washington, D.C. Dulles Intl - Porto), you can expect to pay $279 for that flight.

Related searches

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COVID Restrictions

View COVID Travel Restrictions for Porto, Portugal

Do I need a COVID test to fly to Porto from Dulles Intl?

Information is based on travel restrictions from Washington, D.C. Dulles Intl to Porto

Most visitors from Washington, D.C. Dulles Intl can enter Porto without restrictions.

COVID-19 testing requirements
Visitors from Washington, D.C. Dulles Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Porto.

Quarantine requirements
Visitors from Washington, D.C. Dulles Intl are not required to quarantine after entering Porto.

Do I need a test to fly back to Dulles Intl from Porto?

Returning to Washington, D.C. Dulles Intl from Porto

COVID-19 testing requirements
Visitors from Porto are not required to present a negative COVID-19 PCR test or antigen result upon entering Washington, D.C. Dulles Intl.

Quarantine requirements
Visitors from Porto are not required to quarantine after entering Washington, D.C. Dulles Intl.

Hide COVID Travel Restrictions for Porto, Portugal

Alternative routes for Dulles Intl to Porto

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Washington, D.C. Dulles Intl to Porto

The chart below displays the airlines Cheapflights users traveling from Dulles Intl to Porto choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
TAP AIR PORTUGAL
$378 $606 No cancel fee N/A
Iberia
$389 $402 No cancel fee 77%
Lufthansa
$398 $549 No cancel fee 76%
United Airlines
$399 $473 No cancel fee 69%
American Airlines
$400 $405 No cancel fee 71%
Delta
$414 $467 No cancel fee N/A
British Airways
$446 $460 No cancel fee 70%
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