Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from District of Columbia to Portugal from $247

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Portugal departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from District of Columbia to Portugal

Cheap round-trip flights

Logo
5:00 pm - 9:00 pmIAD-OPO
23h 00m2 stops
Logo
10:30 pm - 3:20 pmOPO-IAD
21h 50m2 stops
$439
Find Deal
Fri, Sep 26 - Fri, Oct 3
Logo
5:10 pm - 9:45 amIAD-OPO
11h 35m1 stop
Logo
6:00 am - 3:50 pmOPO-IAD
14h 50m1 stop
$480
Find Deal
Mon, Oct 20 - Tue, Nov 4
United Airlines Logo
5:33 pm - 9:30 amIAD-OPO
10h 57m1 stop
United Airlines Logo
6:00 am - 3:50 pmOPO-IAD
14h 50m1 stop
$481United Airlines
Find Deal
Wed, Nov 19 - Thu, Nov 27
United Airlines Logo
5:33 pm - 9:30 amIAD-OPO
10h 57m1 stop
United Airlines Logo
6:00 am - 7:27 amOPO-IAD
30h 27m2 stops
$491United Airlines
Find Deal
Wed, Nov 19 - Wed, Dec 3
TAP AIR PORTUGAL Logo
10:35 pm - 5:00 pmIAD-OPO
13h 25m1 stop
TAP AIR PORTUGAL Logo
9:00 am - 3:20 pmOPO-IAD
11h 20m1 stop
$492TAP AIR PORTUGAL
Find Deal
Sat, Sep 6 - Fri, Sep 19
American Airlines Logo
6:00 pm - 4:00 pmIAD-OPO
17h 00m1 stop
American Airlines Logo
8:20 am - 4:30 pmOPO-IAD
13h 10m1 stop
$494American Airlines
Find Deal
Sun, Jan 18 - Thu, Jan 29
Scandinavian Airlines Logo
8:30 pm - 4:05 pmIAD-LIS
14h 35m1 stop
Scandinavian Airlines Logo
4:55 pm - 5:15 pmLIS-IAD
29h 20m1 stop
$496Scandinavian Airlines
Find Deal
Thu, Nov 13 - Wed, Nov 19
TAP AIR PORTUGAL Logo
5:45 pm - 10:55 amIAD-OPO
12h 10m1 stop
TAP AIR PORTUGAL Logo
11:00 am - 8:50 pmOPO-IAD
14h 50m1 stop
$498TAP AIR PORTUGAL
Find Deal
Sun, Sep 7 - Tue, Sep 23
Scandinavian Airlines Logo
8:30 pm - 4:05 pmIAD-LIS
14h 35m1 stop
Scandinavian Airlines Logo
4:55 pm - 5:15 pmLIS-IAD
29h 20m1 stop
$506Scandinavian Airlines
Find Deal
Thu, Nov 6 - Wed, Nov 12
American Airlines Logo
1:09 pm - 7:35 amIAD-OPO
13h 26m2 stops
American Airlines Logo
8:20 am - 4:30 pmOPO-IAD
13h 10m1 stop
$549American Airlines
Find Deal
Thu, Oct 23 - Tue, Nov 4

Scandinavian Airlines flights from District of Columbia to Portugal

Our best Scandinavian Airlines deals on District of Columbia to Portugal flight tickets
Scandinavian Airlines
Nov 13
IAD8:30 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
LIS4:05 pmLisbon Humberto Delgado
Nov 19
LIS4:55 pmLisbon Humberto Delgado
29h 20m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
$496
Find similar
Scandinavian Airlines
Nov 6
IAD8:30 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
LIS4:05 pmLisbon Humberto Delgado
Nov 12
LIS4:55 pmLisbon Humberto Delgado
29h 20m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
$506
Find similar
Scandinavian Airlines
Jan 24
IAD8:30 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
LIS4:05 pmLisbon Humberto Delgado
Feb 8
LIS4:55 pmLisbon Humberto Delgado
29h 20m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
$519
Find similar

TAP AIR PORTUGAL flights from District of Columbia to Portugal

Our best TAP AIR PORTUGAL deals on District of Columbia to Portugal flight tickets
TAP AIR PORTUGAL
Sep 6
IAD10:35 pmWashington, D.C. Dulles Intl
13h 25m
1 stop
OPO5:00 pmPorto
Sep 19
OPO9:00 amPorto
11h 20m
1 stop
IAD3:20 pmWashington, D.C. Dulles Intl
$492
Find similar
TAP AIR PORTUGAL
Sep 7
IAD5:45 pmWashington, D.C. Dulles Intl
12h 10m
1 stop
OPO10:55 amPorto
Sep 23
OPO11:00 amPorto
14h 50m
1 stop
IAD8:50 pmWashington, D.C. Dulles Intl
$498
Find similar
TAP AIR PORTUGAL
Sep 24
IAD10:20 pmWashington, D.C. Dulles Intl
13h 45m
1 stop
OPO5:05 pmPorto
Oct 7
OPO10:30 pmPorto
21h 50m
1 stop
IAD3:20 pmWashington, D.C. Dulles Intl
$505
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 13, 2025.
Use the filters below to find and compare flights from District of Columbia to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 9/26

5:00 pm-9:00 pm

2 stops23h 00m

Porto

Fri 10/3

10:30 pm-3:20 pm

2 stops21h 50m

$439

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 10/20

5:10 pm-9:45 am

1 stop11h 35m

Porto

Tue 11/4

6:00 am-3:50 pm

1 stop14h 50m

$480

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 11/19

5:33 pm-9:30 am

1 stop10h 57m

Porto

Thu 11/27

6:00 am-3:50 pm

1 stop14h 50m

$481

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 11/19

5:33 pm-9:30 am

1 stop10h 57m

Porto

Wed 12/3

6:00 am-7:27 am

2 stops30h 27m

$491

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 9/6

10:35 pm-5:00 pm

1 stop13h 25m

Porto

Fri 9/19

9:00 am-3:20 pm

1 stop11h 20m

$492

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 1/18

6:00 pm-4:00 pm

1 stop17h 00m

Porto

Thu 1/29

8:20 am-4:30 pm

1 stop13h 10m

$494

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Thu 11/13

8:30 pm-4:05 pm

1 stop14h 35m

Lisbon Humberto Delgado

Wed 11/19

4:55 pm-5:15 pm

1 stop29h 20m

$496

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 9/7

5:45 pm-10:55 am

1 stop12h 10m

Porto

Tue 9/23

11:00 am-8:50 pm

1 stop14h 50m

$498

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Thu 11/6

8:30 pm-4:05 pm

1 stop14h 35m

Lisbon Humberto Delgado

Wed 11/12

4:55 pm-5:15 pm

1 stop29h 20m

$506

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 10/23

1:09 pm-7:35 am

2 stops13h 26m

Porto

Tue 11/4

8:20 am-4:30 pm

1 stop13h 10m

$549

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Portugal from

How to get the cheapest flight ticket from District of Columbia to Portugal

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 Portugal?

The cheapest month to fly to Portugal from District of Columbia is in February. Flight prices, which tend to average around $668, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from District of Columbia during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $702.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Monday is the cheapest day to fly to Portugal from District of Columbia. The lowest ticket price found for a Monday departure recently was $740. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $911.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from District of Columbia to Portugal during this time can be as low as $661. In the evening is when there is more demand to fly to Portugal, so prices are often more expensive at around $849 per ticket.

What is the cheapest District of Columbia to Portugal flight route?

Fly from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado for the best District of Columbia - Portugal flight prices

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $900 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from District of Columbia for as low as $746 on momondo.

What cabin class options are available on District of Columbia to Portugal flights?

There are 3 cabin classes available to choose from on District of Columbia to Portugal 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 District of Columbia to Portugal flights?

You could potentially save up to 27% on your flight if you consider stops on a District of Columbia to Portugal flight.

Cheap District of Columbia to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Portugal

Best Price Found

$247

Fastest flight time

7h 05m

Direct flights

Every day

Airports in Portugal

5 airports
The best one-way flight to Portugal from District of Columbia in the past 72 hours is $247. The best round-trip flight deal from District of Columbia to Portugal found on momondo in the last 72 hours is $439.
The fastest flight from District of Columbia to Portugal takes 7h 05m
Direct flights go from District of Columbia to Portugal every day.
There are 5 airports near Portugal: Faro (FAO), Lisbon Humberto Delgado (LIS), Ponta Delgada Nordela (PDL), Funchal Madeira (FNC), Porto (OPO)
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to Portugal?

    Prices for flights from District of Columbia to Portugal are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Portugal?

  • How old do you have to be to fly from District of Columbia to Portugal?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents you'll need for your trip to Portugal may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from District of Columbia to Portugal?

Best airlines flying from District of Columbia to Portugal

Compare and see reviews for airlines that fly from District of Columbia to Portugal with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $333Free CancellationRating
7.0
103 reviews
Search PLAY flights
DeltaPriceFrom $418Free CancellationRating
8.0
7,979 reviews
Search Delta flights
KLMPriceFrom $424Free CancellationRating
7.8
1,381 reviews
Search KLM flights
TAP AIR PORTUGALPriceFrom $468Free CancellationRating
7.1
1,945 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom $480Free CancellationRating
6.6
7,265 reviews
Search British Airways flights
American AirlinesPriceFrom $508Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $515Free CancellationRating
7.0
2,878 reviews
Search Iberia flights
United AirlinesPriceFrom $520Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights
Royal Air MarocPriceFrom $552Free CancellationRating
6.1
500 reviews
Search Royal Air Maroc flights
Air FrancePriceFrom $554Free CancellationRating
7.4
1,467 reviews
Search Air France flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Portugal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portugal from District of Columbia.

Can I find flights from District of Columbia to Portugal with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portugal from District of Columbia with this policy.

How can momondo help me find flights from District of Columbia to Portugal?

Once you have performed a search for District of Columbia to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from District of Columbia to Portugal right now. Can momondo alert me if prices change?

Price alerts on flights to Portugal from District of Columbia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 8/18
Mon 8/25
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $367
Flights to Portofrom $340
Flights to Funchalfrom $401
Flights to Farofrom $424
Flights to Ponta Delgadafrom $450
Flights to Lajesfrom $544
Flights to Hortafrom $591
Flights to Pico Islandfrom $560
Flights to Porto Santofrom $639
Flights to Velasfrom $557