In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular routes from Washington, D.C. Reagan-National Airport to Portugal?

The most popular route from Washington, D.C. Reagan-National Airport to Portugal is Washington, D.C. Reagan-National - Lisbon Humberto Delgado. You may also consider Washington, D.C. Reagan-National - Porto or Washington, D.C. Reagan-National - Ponta Delgada Nordela.

What are the most popular airlines that fly from Washington, D.C. Reagan-National Airport to Portugal?

When booking a flight from Washington, D.C. Reagan-National Airport to Portugal, you may want to consider flying on Delta, Lufthansa or TAP AIR PORTUGAL as they are the most popular for this route.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Portugal?

Travelers have found it’s best to book a flight 45 days in advance to save up to 78% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Reagan-National Airport to Portugal 1-2 weeks in advance for as low as $968, or $1,282 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Portugal?

February can be a great time to fly to Portugal from Washington, D.C. Reagan-National Airport with a flight ticket averaging about $904. Cheapflights users have found deals in the month of February for as cheap as $352. The most expensive prices can be found in the month of December.

Can I find deals for flights from Reagan-National to Portugal that include hotel bookings?

Yes. In addition to deals on Reagan-National to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to Portugal?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Portugal.

Can I find deals for business class flights from Reagan-National to Portugal?

Yes. Cheapflights offers flight deals from Reagan-National to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$319+ Flights from Washington, D.C. Reagan-National Airport to Portugal

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Cheap flight deals from Reagan-National to Portugal

Round-trip from	$566 (Mytrip)
One-way from	$319 (Mytrip)
Popular in	December
Cheapest in	February
Average price	$1,053

From Washington, D.C. Reagan-National to Portugal

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One-way flight from Washington, D.C. Reagan-National to Portugal

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($20 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Reagan-National to Portugal

Cheapest flights from Reagan-National to Portugal
Explore the most affordable flight options available from Reagan-National to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

lun. 8/256:00 amDCA - OPO

3 stops35h 25mMultiple Airlines

mié. 9/37:15 amOPO - DCA

2 stops19h 36mMultiple Airlines

Deal found 7/28

$566

mar. 10/142:55 pmDCA - OPO

2 stops35h 40mIberia

mar. 10/2812:25 pmOPO - DCA

2 stops14h 32mIberia

Deal found 7/28

$568

mar. 10/215:15 pmDCA - OPO

1 stop11h 30mUnited Airlines

jue. 11/1312:35 pmOPO - DCA

1 stop12h 00mUnited Airlines

Deal found 7/28

$579

dom. 8/178:40 pmDCA - OPO

2 stops31h 55mAir Canada

mar. 9/212:50 pmOPO - DCA

2 stops28h 18mAir Canada

Deal found 7/27

$580

mar. 10/142:59 pmDCA - OPO

2 stops19h 31mDelta

mié. 10/296:00 amOPO - DCA

2 stops31h 36mDelta

Deal found 7/28

$597

lun. 8/2512:55 pmDCA - FAO

3 stops27h 05mMultiple Airlines

mar. 9/29:25 pmFAO - DCA

2 stops25h 39mMultiple Airlines

Deal found 7/28

$626

jue. 10/1612:55 pmDCA - LIS

3 stops16h 25mMultiple Airlines

lun. 10/207:05 amLIS - DCA

3 stops20h 29mMultiple Airlines

Deal found 7/28

$637

lun. 10/136:05 amDCA - LIS

2 stops35h 00mScandinavian Airlines

jue. 10/237:00 amLIS - DCA

2 stops21h 04mScandinavian Airlines

Deal found 7/28

$642

dom. 10/1211:00 amDCA - OPO

2 stops15h 35mAmerican Airlines

lun. 10/2012:20 pmOPO - DCA

2 stops15h 37mAmerican Airlines

Deal found 7/27

$669

vie. 9/197:15 pmDCA - PDL

1 stop9h 25mUnited Airlines

dom. 9/2111:00 amPDL - DCA

1 stop9h 21mUnited Airlines

Deal found 7/28

$676

mar. 11/412:00 pmDCA - LIS

2 stops16h 20mUnited Airlines

mar. 11/1111:20 amLIS - DCA

2 stops30h 14mUnited Airlines

Deal found 7/27

$682

mar. 11/412:55 pmDCA - LIS

2 stops15h 25mAir Canada

jue. 11/1310:55 amLIS - DCA

1 stop28h 31mAir Canada

Deal found 7/27

$691

Best flights from Reagan-National to Portugal
Discover carefully curated flight deals from Reagan-National to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 29, 2025.

lun. 8/256:00 amDCA - OPO

3 stops35h 25mMultiple Airlines

mié. 9/37:15 amOPO - DCA

2 stops19h 36mMultiple Airlines

Deal found 7/28

$566

mar. 10/142:55 pmDCA - OPO

2 stops35h 40mIberia

mar. 10/2812:25 pmOPO - DCA

2 stops14h 32mIberia

Deal found 7/28

$568

mar. 10/215:15 pmDCA - OPO

1 stop11h 30mUnited Airlines

jue. 11/1312:35 pmOPO - DCA

1 stop12h 00mUnited Airlines

Deal found 7/28

$579

dom. 8/178:40 pmDCA - OPO

2 stops31h 55mAir Canada

mar. 9/212:50 pmOPO - DCA

2 stops28h 18mAir Canada

Deal found 7/27

$580

mar. 10/142:59 pmDCA - OPO

2 stops19h 31mDelta

mié. 10/296:00 amOPO - DCA

2 stops31h 36mDelta

Deal found 7/28

$597

mié. 10/11:39 pmDCA - OPO

2 stops12h 56mAmerican Airlines

mié. 10/88:15 amOPO - DCA

2 stops17h 44mAmerican Airlines

Deal found 7/29

$608

lun. 10/136:05 amDCA - LIS

2 stops35h 00mScandinavian Airlines

jue. 10/237:00 amLIS - DCA

2 stops21h 04mScandinavian Airlines

Deal found 7/28

$642

lun. 10/137:06 pmDCA - FAO

2 stops14h 39mBritish Airways

lun. 3/167:05 pmFAO - DCA

2 stops25h 24mBritish Airways

Deal found 7/28

$833

mié. 10/225:20 pmDCA - PDL

2 stops18h 20mTAP AIR PORTUGAL

lun. 10/277:25 pmPDL - DCA

2 stops46h 07mTAP AIR PORTUGAL

Deal found 7/29

$923

vie. 10/312:59 pmDCA - FAO

2 stops24h 21mKLM

mar. 11/47:45 pmFAO - DCA

2 stops27h 20mKLM

Deal found 7/27

$1,118

lun. 8/2512:55 pmDCA - FAO

3 stops27h 05mMultiple Airlines

mar. 9/29:25 pmFAO - DCA

2 stops25h 39mMultiple Airlines

Deal found 7/28

$626

vie. 9/197:15 pmDCA - PDL

1 stop9h 25mUnited Airlines

dom. 9/2111:00 amPDL - DCA

1 stop9h 21mUnited Airlines

Deal found 7/28

$676

Last-minute flights from Reagan-National to Portugal
Discover last-minute flight deals from Reagan-National to Portugal. Data last updated julio 29, 2025 and is based on user searches.

dom. 8/34:30 pmDCA - LIS

1 stop11h 50mAir Canada

vie. 8/812:55 pmLIS - DCA

1 stop11h 47mAir Canada

Deal found 7/27

$1,538

dom. 8/34:30 pmDCA - PDL

2 stops18h 30mMultiple Airlines

sáb. 8/98:35 amPDL - DCA

3 stops17h 13mMultiple Airlines

Deal found 7/27

$2,105

lun. 8/43:05 pmDCA - OPO

1 stop10h 50mUnited Airlines

dom. 8/109:15 amOPO - DCA

1 stop11h 06mUnited Airlines

Deal found 7/28

$1,178

lun. 8/41:44 pmDCA - OPO

1 stop16h 11mTAP AIR PORTUGAL

dom. 8/1010:30 pmOPO - DCA

2 stops26h 33mTAP AIR PORTUGAL

Deal found 7/28

$1,305

lun. 8/49:40 amDCA - OPO

1 stop16h 20mMultiple Airlines

vie. 8/88:40 amOPO - DCA

1 stop12h 08mMultiple Airlines

Deal found 7/29

$1,675

lun. 8/41:00 pmDCA - PDL

2 stops16h 45mTAP AIR PORTUGAL

vie. 8/156:30 amPDL - DCA

2 stops30h 34mTAP AIR PORTUGAL

Deal found 7/28

$1,971

mié. 8/66:05 amDCA - LIS

2 stops33h 35mScandinavian Airlines

mié. 8/206:25 pmLIS - DCA

2 stops34h 16mScandinavian Airlines

Deal found 7/27

$1,109

jue. 8/76:30 amDCA - FNC

2 stops25h 55mTAP AIR PORTUGAL

jue. 8/145:50 amFNC - DCA

2 stops31h 13mTAP AIR PORTUGAL

Deal found 7/26

$2,061

vie. 8/811:00 amDCA - OPO

2 stops16h 25mDelta

lun. 8/119:20 amOPO - DCA

2 stops18h 26mDelta

Deal found 7/28

$1,052

vie. 8/86:00 amDCA - LIS

2 stops23h 20mMultiple Airlines

lun. 8/1110:45 pmLIS - DCA

2 stops28h 03mMultiple Airlines

Deal found 7/28

$1,134

vie. 8/811:10 amDCA - LIS

1 stop18h 40mTAP AIR PORTUGAL

lun. 9/85:35 pmLIS - DCA

1 stop21h 24mTAP AIR PORTUGAL

Deal found 7/29

$1,216

vie. 8/82:54 pmDCA - OPO

2 stops15h 46mIberia

lun. 8/118:15 amOPO - DCA

2 stops20h 03mIberia

Deal found 7/28

$1,284

One-way flights from Reagan-National to Portugal
Search for one-way flight options from Reagan-National to Portugal. Find affordable one-way fares based on user searches. Data last updated julio 29, 2025.

dom. 10/1211:00 amDCA - LIS

3 stops40h 30mMultiple Airlines

Deal found 7/29

$319

lun. 9/14:30 pmDCA - OPO

1 stop12h 05mAir Canada

Deal found 7/27

$354

mar. 9/25:27 pmDCA - OPO

1 stop9h 18mUnited Airlines

Deal found 7/27

$359

lun. 9/226:00 pmDCA - LIS

2 stops18h 05mIberia

Deal found 7/27

$363

mié. 11/121:44 pmDCA - OPO

2 stops12h 56mBritish Airways

Deal found 7/28

$373

lun. 10/65:20 pmDCA - LIS

1 stop11h 45mTAP AIR PORTUGAL

Deal found 7/29

$374

mié. 11/1211:33 amDCA - OPO

2 stops15h 07mAmerican Airlines

Deal found 7/27

$378

dom. 8/2411:00 amDCA - LIS

2 stops24h 00mScandinavian Airlines

Deal found 7/27

$405

mar. 10/1411:00 amDCA - LIS

2 stops17h 20mAir Canada

Deal found 7/27

$408

vie. 10/37:00 amDCA - OPO

3 stops44h 50mMultiple Airlines

Deal found 7/27

$414

mié. 9/105:55 pmDCA - PDL

2 stops20h 55mTAP AIR PORTUGAL

Deal found 7/27

$428

jue. 10/232:55 pmDCA - OPO

2 stops24h 00mIberia

Deal found 7/27

$428

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

lun. 8/25

6:00 am-10:25 pm

3 stops35h 25m

Porto

mié. 9/3

7:15 am-9:51 pm

2 stops19h 36m

$566

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mar. 10/14

2:55 pm-7:35 am

2 stops35h 40m

Porto

mar. 10/28

12:25 pm-10:57 pm

2 stops14h 32m

$568

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mar. 10/21

5:15 pm-9:45 am

1 stop11h 30m

Porto

jue. 11/13

12:35 pm-7:35 pm

1 stop12h 00m

$579

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

dom. 8/17

8:40 pm-9:35 am

2 stops31h 55m

Porto

mar. 9/2

12:50 pm-12:08 pm

2 stops28h 18m

$580

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mar. 10/14

2:59 pm-3:30 pm

2 stops19h 31m

Porto

mié. 10/29

6:00 am-9:36 am

2 stops31h 36m

$597

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mié. 10/1

1:39 pm-7:35 am

2 stops12h 56m

Porto

mié. 10/8

8:15 am-8:59 pm

2 stops17h 44m

$608

Washington, D.C.Faro

DCA - FAO

DCAFAO

Washington, D.C. Reagan-National

lun. 8/25

12:55 pm-9:00 pm

3 stops27h 05m

Faro

mar. 9/2

9:25 pm-6:04 pm

2 stops25h 39m

$626

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

jue. 10/16

12:55 pm-10:20 am

3 stops16h 25m

Lisbon Humberto Delgado

lun. 10/20

7:05 am-10:34 pm

3 stops20h 29m

$637

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

lun. 10/13

6:05 am-10:05 pm

2 stops35h 00m

Lisbon Humberto Delgado

jue. 10/23

7:00 am-11:04 pm

2 stops21h 04m

$642

Washington, D.C.Ponta Delgada

DCA - PDL

DCAPDL

Washington, D.C. Reagan-National

vie. 9/19

7:15 pm-8:40 am

1 stop9h 25m

Ponta Delgada Nordela

dom. 9/21

11:00 am-4:21 pm

1 stop9h 21m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 47 results

...

Best time to book a flight from Reagan-National to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Reagan-National with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Portugal

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Portugal?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Portugal (average of $612). Flying from Washington, D.C. Reagan-National Airport to Portugal in June is currently the most expensive (average of $1,129). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DCA to PT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Portugal as you normally would.

Reviews of airlines servicing Portugal

Get a feel of what it's like to fly with Delta, KLM, and United Airlines from Washington, D.C. Reagan-National Airport to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,383 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,896 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Scandinavian Airlines

7.3

Good

1,449 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Portugal one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to Portugal are Air Canada ($354), United Airlines ($359), and Iberia ($363).
What are the most popular routes from Washington, D.C. Reagan-National Airport to Portugal?
The most popular route from Washington, D.C. Reagan-National Airport to Portugal is Washington, D.C. Reagan-National - Lisbon Humberto Delgado. You may also consider Washington, D.C. Reagan-National - Porto or Washington, D.C. Reagan-National - Ponta Delgada Nordela.
Can I find deals for flights from Reagan-National to Portugal that include hotel bookings?
Yes. In addition to deals on Reagan-National to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Portugal?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Portugal.
Can I find deals for business class flights from Reagan-National to Portugal?
Yes. Cheapflights offers flight deals from Reagan-National to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Portugal?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Portugal (average of $612). Flying from Washington, D.C. Reagan-National Airport to Portugal in June is currently the most expensive (average of $1,129). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Reagan-National to Portugal

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Dulles Intl to Bruxelles-National flights

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Reagan-National to Athens flights

Baltimore to Istanbul flights

Baltimore to Athens flights

Reagan-National to Barcelona-El Prat flights

Baltimore to Amsterdam flights

Baltimore to Barcelona-El Prat flights

Dulles Intl to Sabiha Gokcen flights

Dulles Intl to Geneva flights

Complete your trip

Portugal car rentals

Madeira car rentals

Azores car rentals

Lisbon Humberto Delgado Airport car rentals

Porto Airport car rentals

Ponta Delgada Nordela Airport car rentals

Lajes Airport car rentals

Lisbon car rentals

Porto car rentals

Funchal car rentals

Ponta Delgada car rentals

Faro car rentals

Top 4 airlines flying from Reagan-National to Portugal

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$520	Average$1,247	FlexibilityNo cancel fee	On-time69%
TAP AIR PORTUGAL	Cheapest$561	Average$1,024	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$600	Average$2,016	FlexibilityNo cancel fee	On-timeN/A
Lufthansa	Cheapest$968	Average$968	FlexibilityNo cancel fee	On-time76%

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$319+ Cheap flights from Reagan-National (DCA) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Portugal with Cheapflights

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Cheap flight deals from Reagan-National to Portugal

Keep the following information in mind while searching for Reagan-National to Portugal flight deals. Data was last updated julio 29, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Reagan-National to Portugal

Cheapest flights from Reagan-National to PortugalExplore the most affordable flight options available from Reagan-National to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

Explore the most affordable flight options available from Reagan-National to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Portugal that are best for you.

Best time to book a flight from Reagan-National to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Reagan-National with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Portugal

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Portugal?

What is the cheapest time of day to fly from DCA to PT?

Find hourly flight availability from Reagan-National to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 29, 2025.

Reviews of airlines servicing Portugal

Get a feel of what it's like to fly with Delta, KLM, and United Airlines from Washington, D.C. Reagan-National Airport to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Portugal one-way?

What are the most popular routes from Washington, D.C. Reagan-National Airport to Portugal?

Can I find deals for flights from Reagan-National to Portugal that include hotel bookings?

How can I find direct flights from Reagan-National to Portugal?

Can I find deals for business class flights from Reagan-National to Portugal?

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Portugal?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Portugal

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

Top 4 airlines flying from Reagan-National to Portugal

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Cheapest flights from Reagan-National to Portugal
Explore the most affordable flight options available from Reagan-National to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.