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Cheap flights from Portugal to Washington, D.C. Dulles Intl Airport from $349

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. Dulles Intl Airport departing on 2/3. 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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Find the cheapest flights from Portugal to Washington, D.C.

Cheap round-trip flights

These are some of the best round-trip flight deals from Portugal to Washington, D.C. that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portugal to Washington, D.C..

Cheap last minute flights

Planning a quick getaway from Portugal to Washington, D.C.? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Washington, D.C., so you can enjoy a seamless trip without layovers.

Cheap bus & train deals to Washington, D.C.

Find recent round-trip train or bus tickets from Portugal to Washington, D.C..

All round-trip flight deals to Washington, D.C.

The cheapest plane tickets to Washington, D.C. found on KAYAK recently.
6:30 am - 4:25 pmLIS-IAD
14h 55m1 stop
10:55 pm - 9:55 pmIAD-LIS
19h 00m1 stop
$420Finnair
Find Deal
Wed, Mar 5 - Mon, Mar 10
6:35 pm - 3:35 pmLIS-IAD
26h 00m1 stop
6:00 pm - 12:10 pmIAD-LIS
13h 10m1 stop
Wed, Dec 4 - Mon, Dec 9
11:05 am - 7:28 pmLIS-IAD
13h 23m2 stops
1:41 pm - 9:15 amIAD-LIS
14h 34m2 stops
$437American Airlines
Find Deal
Fri, Dec 6 - Tue, Dec 10
7:00 am - 3:35 pmLIS-IAD
13h 35m1 stop
6:00 pm - 12:05 pmIAD-LIS
13h 05m1 stop
$442American Airlines
Find Deal
Thu, Jan 16 - Tue, Jan 21
5:15 pm - 9:00 pmLIS-IAD
8h 45mnonstop
5:30 pm - 5:35 amIAD-LIS
7h 05mnonstop
$514TAP AIR PORTUGAL
Find Deal
Fri, Jan 17 - Thu, Jan 30
5:15 pm - 9:00 pmLIS-IAD
8h 45mnonstop
8:15 pm - 7:20 amIAD-LIS
7h 05mnonstop
$515TAP AIR PORTUGAL
Find Deal
Wed, Mar 5 - Mon, Mar 10
6:00 am - 8:20 pmOPO-IAD
19h 20m1 stop
5:50 pm - 11:35 amIAD-OPO
12h 45m1 stop
$517Lufthansa
Find Deal
Mon, Dec 16 - Mon, Dec 30
6:00 am - 7:29 amOPO-IAD
30h 29m2 stops
5:50 pm - 11:35 amIAD-OPO
12h 45m1 stop
$526United Airlines
Find Deal
Mon, Dec 16 - Mon, Dec 30
5:00 am - 8:20 pmLIS-IAD
20h 20m1 stop
5:45 pm - 8:10 amIAD-LIS
9h 25m1 stop
$528United Airlines
Find Deal
Tue, Dec 24 - Tue, Jan 7
12:15 pm - 3:50 pmLIS-IAD
32h 35m1 stop
5:50 pm - 11:25 amIAD-LIS
12h 35m1 stop
$541Lufthansa
Find Deal
Sun, Dec 15 - Sun, Dec 29
9:05 pm - 6:40 pmLIS-IAD
50h 35m3 stops
Mon, Feb 3
8:00 am - 6:40 pmLIS-IAD
15h 40m2 stops
Sun, Feb 2
12:00 pm - 3:20 pmLIS-IAD
8h 20mnonstop
$459TAP AIR PORTUGAL
Find Deal
Tue, Apr 8
10:50 am - 7:45 pmLIS-IAD
13h 55m1 stop
$460Aer Lingus
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Tue, Nov 26
10:50 am - 3:40 pmLIS-IAD
33h 50m1 stop
$468Aer Lingus
Find Deal
Fri, Jan 10
9:15 am - 1:00 pmLIS-IAD
8h 45mnonstop
$505TAP AIR PORTUGAL
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Mon, Dec 16
6:00 am - 8:20 pmOPO-IAD
19h 20m1 stop
$525Lufthansa
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Sat, Dec 7
11:55 am - 3:35 pmLIS-IAD
8h 40mnonstop
$550Lufthansa
Find Deal
Wed, Dec 4
5:00 am - 2:40 pmLIS-IAD
14h 40m1 stop
$696United Airlines
Find Deal
Tue, Nov 26
5:00 am - 2:40 pmLIS-IAD
14h 40m1 stop
$698United Airlines
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Thu, Nov 28
3:25 pm - 3:45 pmLIS-IAD
29h 20m1 stop
6:30 pm - 11:20 amIAD-LIS
11h 50m1 stop
Sun, Nov 24 - Thu, Dec 5
5:00 am - 3:45 pmLIS-IAD
15h 45m1 stop
6:30 pm - 3:10 pmIAD-LIS
15h 40m1 stop
Sun, Nov 24 - Mon, Dec 9
11:25 am - 3:45 pmLIS-IAD
33h 20m1 stop
5:14 pm - 8:00 amIAD-LIS
9h 46m1 stop
$573KLM
Find Deal
Tue, Nov 26 - Wed, Dec 11
10:00 am - 4:42 pmLIS-IAD
11h 42m1 stop
12:16 pm - 8:00 amIAD-LIS
14h 44m1 stop
$580KLM
Find Deal
Mon, Nov 25 - Tue, Dec 10
11:30 am - 3:10 pmLIS-IAD
8h 40mnonstop
3:55 pm - 9:20 amIAD-LIS
12h 25m1 stop
$703United Airlines
Find Deal
Sun, Nov 24 - Thu, Dec 5
11:55 am - 3:35 pmLIS-IAD
8h 40mnonstop
10:10 pm - 10:15 amIAD-LIS
7h 05mnonstop
$705United Airlines
Find Deal
Fri, Nov 22 - Tue, Dec 10
5:00 am - 2:40 pmLIS-IAD
14h 40m1 stop
10:10 pm - 10:15 amIAD-LIS
7h 05mnonstop
$760Lufthansa
Find Deal
Fri, Nov 22 - Tue, Dec 10
5:00 am - 2:40 pmLIS-IAD
14h 40m1 stop
10:10 pm - 10:15 amIAD-LIS
7h 05mnonstop
$761Lufthansa
Find Deal
Sat, Nov 23 - Tue, Dec 10
5:15 pm - 9:00 pmLIS-IAD
8h 45mnonstop
5:30 pm - 5:35 amIAD-LIS
7h 05mnonstop
$843TAP AIR PORTUGAL
Find Deal
Fri, Nov 22 - Tue, Dec 10
5:15 pm - 9:00 pmLIS-IAD
8h 45mnonstop
10:30 pm - 10:35 amIAD-LIS
7h 05mnonstop
$859TAP AIR PORTUGAL
Find Deal
Fri, Nov 22 - Fri, Dec 6
5:15 pm - 9:00 pmLIS-IAD
8h 45mnonstop
5:30 pm - 5:35 amIAD-LIS
7h 05mnonstop
$507TAP AIR PORTUGAL
Find Deal
Fri, Jan 17 - Thu, Jan 30
5:15 pm - 9:00 pmLIS-IAD
8h 45mnonstop
8:15 pm - 7:20 amIAD-LIS
7h 05mnonstop
$522TAP AIR PORTUGAL
Find Deal
Wed, Mar 5 - Mon, Mar 10
11:55 am - 3:35 pmLIS-IAD
8h 40mnonstop
10:10 pm - 10:15 amIAD-LIS
7h 05mnonstop
$545Lufthansa
Find Deal
Fri, Dec 13 - Sun, Dec 29
11:55 am - 3:35 pmLIS-IAD
8h 40mnonstop
11:10 pm - 10:15 amIAD-LIS
7h 05mnonstop
$555Lufthansa
Find Deal
Tue, Feb 25 - Tue, Mar 11
11:15 am - 3:00 pmLIS-IAD
8h 45mnonstop
5:30 pm - 5:35 amIAD-LIS
7h 05mnonstop
$598TAP AIR PORTUGAL
Find Deal
Thu, Dec 12 - Thu, Jan 9
11:55 am - 3:35 pmLIS-IAD
8h 40mnonstop
10:05 pm - 10:00 amIAD-LIS
6h 55mnonstop
Sat, Dec 21 - Sat, Jan 4
11:55 am - 3:35 pmLIS-IAD
8h 40mnonstop
10:15 pm - 10:30 amIAD-LIS
7h 15mnonstop
$657United Airlines
Find Deal
Wed, Dec 4 - Thu, Apr 24
11:55 am - 3:35 pmLIS-IAD
8h 40mnonstop
10:05 pm - 10:00 amIAD-LIS
6h 55mnonstop
$754United Airlines
Find Deal
Sat, Dec 21 - Sat, Dec 28
5:25 pm - 8:45 pmLIS-IAD
8h 20mnonstop
10:20 pm - 10:35 amIAD-LIS
7h 15mnonstop
$1,340JetBlue
Find Deal
Fri, May 9 - Fri, May 23
5:15 pm - 9:00 pmLIS-IAD
8h 45mnonstop
10:10 pm - 10:15 amIAD-LIS
7h 05mnonstop
$2,124
Find Deal
Fri, Dec 13 - Sun, Dec 15

Finnair flights from Portugal to Washington, D.C. Dulles Intl Airport

Our best Finnair deals on Portugal to Washington, D.C. Dulles Intl Airport flight tickets
Finnair
Mar 5
LIS6:30 amLisbon Humberto Delgado
14h 55m
1 stop
IAD4:25 pmWashington, D.C. Dulles Intl
Mar 10
IAD10:55 pmWashington, D.C. Dulles Intl
19h 00m
1 stop
LIS9:55 pmLisbon Humberto Delgado
Finnair
Dec 24
LIS10:40 amLisbon Humberto Delgado
14h 05m
1 stop
IAD7:45 pmWashington, D.C. Dulles Intl
Jan 8
IAD9:55 pmWashington, D.C. Dulles Intl
12h 00m
1 stop
LIS2:55 pmLisbon Humberto Delgado
Finnair
Dec 24
LIS10:40 amLisbon Humberto Delgado
14h 05m
1 stop
IAD7:45 pmWashington, D.C. Dulles Intl
Jan 6
IAD9:55 pmWashington, D.C. Dulles Intl
12h 00m
1 stop
LIS2:55 pmLisbon Humberto Delgado

American Airlines flights from Portugal to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Portugal to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Dec 6
LIS11:05 amLisbon Humberto Delgado
13h 23m
2 stops
IAD7:28 pmWashington, D.C. Dulles Intl
Dec 10
IAD1:41 pmWashington, D.C. Dulles Intl
14h 34m
2 stops
LIS9:15 amLisbon Humberto Delgado
American Airlines
Jan 16
LIS7:00 amLisbon Humberto Delgado
13h 35m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Jan 21
IAD6:00 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
LIS12:05 pmLisbon Humberto Delgado
American Airlines
Jan 16
LIS6:30 amLisbon Humberto Delgado
18h 15m
2 stops
IAD7:45 pmWashington, D.C. Dulles Intl
Jan 21
IAD1:52 pmWashington, D.C. Dulles Intl
17h 13m
2 stops
LIS12:05 pmLisbon Humberto Delgado

See travel insights to Washington, D.C. from

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 February is also cheap. Prices for this month can be found on momondo for an average of $580.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday 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 $653. When flying out on a Sunday, 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 $782.

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 $0 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $773 on average. Flights to Washington, D.C. Dulles Intl Airport from Portugal in the afternoon 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?

The ideal time to book your flight to Washington, D.C. Dulles Intl Airport is 60 days in advance when prices tend to average $734. 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 $484 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.

Can stopping save me money on Portugal to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 23% on your flight if you consider stops on a Portugal to Washington, D.C. Dulles Intl Airport flight.

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

Best Price Found

$349

Fastest flight time

8h 20m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Portugal in the past 72 hours is $349. The best round-trip flight deal from Portugal to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $420.
The fastest flight from Portugal to Washington, D.C. Dulles Intl Airport takes 8h 20m
Direct flights go from Portugal to Washington, D.C. Dulles Intl Airport every day.

  • 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?

  • 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?


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
TAP AIR PORTUGALPriceFrom $501Free CancellationRating
7.1
1,891 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $536Free CancellationRating
6.8
7,143 reviews
Search Lufthansa flights
United AirlinesPriceFrom $549Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights

Why use momondo?

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.


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