Cheap flights from Portugal to Washington, D.C. from $390
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Washington, D.C. departing on 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Delta flights from Portugal to Washington, D.C. Dulles Intl Airport
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American Airlines flights from Portugal to Washington, D.C. Dulles Intl Airport
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How to get the cheapest flight ticket from Portugal to Washington, D.C. Dulles Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?
In general, November is the cheapest month to fly from Portugal to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $568. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of November, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $600.
What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $732. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Portugal to Washington, D.C. Dulles Intl Airport for around $881.
What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Flying to Washington, D.C. Dulles Intl Airport from Portugal at noon is the least expensive time of day to depart. momondo users have found prices as low as $484 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $788 on average. Flights to Washington, D.C. Dulles Intl Airport from Portugal in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Portugal to Washington, D.C. Dulles Intl flight route?
Fly from Lisbon Humberto Delgado to Washington, D.C. Dulles Intl for the best Portugal - Washington, D.C. Dulles Intl flight prices
How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?
You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Portugal when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $712 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Portugal for as low as $581 on momondo.
What cabin class options are available on Portugal to Washington, D.C. Dulles Intl flights?
There are 3 cabin classes available to choose from on Portugal to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Portugal to Washington, D.C. Dulles Intl Airport on average per day?
As of June 2025, 6 flights take off from Portugal and land in Washington, D.C. Dulles Intl Airport each day. The most common flight departure time for this route is 12:00PM, with 100% of daily flights taking off in the afternoon.
How many flights depart from Portugal to Washington, D.C. Dulles Intl Airport on average per week?
As of June 2025, there are 42 flights per week flying from Portugal to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.
Cheap Portugal to Washington, D.C. Dulles Intl Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portugal to Washington, D.C. Dulles Intl Airport
When did momondo last update prices for flights from Portugal to Washington, D.C. Dulles Intl Airport?
Prices for flights from Portugal to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Portugal to Washington, D.C. Dulles Intl Airport?
There are 2 operators available for flights from Portugal to Washington, D.C. Dulles Intl Airport as of June 2025.
How old do you have to be to fly from Portugal to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Portugal to Washington, D.C. Dulles Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Portugal to Washington, D.C. Dulles Intl Airport is Boeing 767-400, representing 40.58% of all bookings. The subsequent popular models are Airbus A321neo at 26.94%, Airbus A321-100/200 at 12.60%, and Boeing 767-300 at 7.17%.
Best airlines flying from Portugal to Washington, D.C. Dulles Intl Airport
Compare and see reviews for airlines that fly from Portugal to Washington, D.C. Dulles Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $480 | Free Cancellation | Rating 7.1 1,885 reviews | |||
| PriceFrom $534 | Free Cancellation | Rating 7.4 8,790 reviews |
Traveling to a place near Washington, D.C.?
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Why should I use momondo to find a flight deal from Portugal to Washington, D.C.?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portugal to Washington, D.C.. momondo saves you time and could save you money on your trip.
Can I find flights from Portugal to Washington, D.C. with flexible booking policies on momondo?
Yes. All flights to Washington, D.C. from Portugal on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Portugal to Washington, D.C.?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Portugal.
I’m not ready to book a flight from Portugal to Washington, D.C. right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Washington, D.C. from Portugal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.