Porto (OPO) → Washington (IAD)
About Porto to Washington Flights
Discover the best flights from Porto to Washington, covering 5,697 km in approximately 7h 37m. Porto (OPO) to Washington (IAD) is one of the major long-haul routes connecting Portugal and United States. With 7 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Porto to Washington.
12-Month Price History
Flight prices from Porto to Washington vary significantly throughout the year. February typically offers the best deals with average prices around $1076, while July sees the highest prices, averaging $1842. Savvy travelers can save up to 42% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
162 days
For best prices
Booking Tips
For the best prices on Porto to Washington flights, we recommend booking 88 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
United Airlines UA | $1760 | $6310 | $10480 |
Delta Air Lines DL | $1900 | $7870 | $11400 |
Portugália Airlines NI | $2000 | $7430 | $11030 |
Air France AF | $2010 | $7340 | $12250 |
TAP Air Portugal TP | $2180 | $8010 | $11320 |
British Airways BA | $2200 | $7750 | $11650 |
American Airlines AA | $2230 | $7520 | $9680 |
United Airlines
UA
Economy
$1760
Business
$6310
First
$10480
Delta Air Lines
DL
Economy
$1900
Business
$7870
First
$11400
Portugália Airlines
NI
Economy
$2000
Business
$7430
First
$11030
Air France
AF
Economy
$2010
Business
$7340
First
$12250
TAP Air Portugal
TP
Economy
$2180
Business
$8010
First
$11320
British Airways
BA
Economy
$2200
Business
$7750
First
$11650
American Airlines
AA
Economy
$2230
Business
$7520
First
$9680
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Porto → Washington
Francisco Sá Carneiro (OPO) to Ronald Reagan Washington National (DCA)
Distance: 5,669 km
Average price: $1235
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Frequently Asked Questions
How long is the flight from Porto to Washington?
The flight time from Porto (OPO) to Washington (IAD) is approximately 7 hours and 37 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Porto and Washington?
The aerial distance between Porto and Washington is 5,697 kilometers (3,540 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Porto to Washington?
Several airlines operate flights between Porto and Washington, including United Airlines, TAP Air Portugal, Portugália Airlines and 4 more airlines. Direct flights are available on this route.
What is the cheapest month to fly from Porto to Washington?
Based on historical data, February typically offers the lowest airfares for flights from Porto to Washington. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Washington?
For the best prices on Porto to Washington flights, we recommend booking 133 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Porto to Washington?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of Portugal traveling to United States should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Porto and Washington?
Porto operates on Europe/Lisbon time zone, while Washington is in the America/New_York time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.