Portugal

$355+ Cheap flights from Dulles Intl (IAD) 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LIS
dic. 23 — dic. 301
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Cheap flight deals from Dulles Intl to Portugal

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Portugal (PT0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 18, 2024.

Round-trip from

$508
(Gotogate)

One-way from

$355
(Kiwi.com)
From Washington, D.C. Dulles Intl to Portugal
One-way flight from Washington, D.C. Dulles Intl to Portugal

Find flight deals from Dulles Intl to Portugal

Cheapest flights from Dulles Intl to Portugal
Explore the most affordable flight options available from Dulles Intl to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 18, 2024.

This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/315:30 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
lun. 1/278:00 pmOPO - IAD
1 stop23h 30mTAP AIR PORTUGAL
Deal found 12/17$724
This FlightHub deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/297:40 pmIAD - LIS
1 stop19h 40mIcelandair
vie. 1/109:20 pmLIS - IAD
1 stop26h 05mIcelandair
Deal found 12/18$783
This oojo deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/289:25 pmIAD - LIS
1 stop32h 10mTurkish Airlines
dom. 2/94:00 pmLIS - IAD
1 stop32h 30mTurkish Airlines
Deal found 12/17$878
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/286:30 pmIAD - LIS
1 stop15h 40mDelta
dom. 2/95:00 amLIS - IAD
1 stop15h 45mDelta
Deal found 12/17$888
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/307:15 pmIAD - OPO
1 stop10h 50mMultiple Airlines
dom. 1/266:00 amOPO - IAD
2 stops20h 00mMultiple Airlines
Deal found 12/17$934
This British Airways deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/306:00 pmIAD - LIS
1 stop15h 55mBritish Airways
mié. 1/86:35 pmLIS - IAD
1 stop26h 00mBritish Airways
Deal found 12/17$951
This Mytrip deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/305:50 pmIAD - LIS
2 stops20h 25mMultiple Airlines
mié. 1/88:05 pmLIS - IAD
3 stops24h 08mMultiple Airlines
Deal found 12/17$960
This Mytrip deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/281:45 pmIAD - FAO
3 stops17h 40mMultiple Airlines
mar. 1/146:05 amFAO - IAD
2 stops20h 16mMultiple Airlines
Deal found 12/17$1,043
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/316:30 pmIAD - OPO
1 stop11h 20mDelta
vie. 1/2411:45 amOPO - IAD
2 stops28h 38mDelta
Deal found 12/17$1,048
This KLM deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/275:35 pmIAD - LIS
1 stop12h 00mKLM
lun. 12/305:00 amLIS - IAD
1 stop15h 45mKLM
Deal found 12/16$1,055
This Aeromexico deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/299:30 pmIAD - LIS
1 stop15h 00mAir France
vie. 1/106:30 pmLIS - IAD
2 stops29h 27mAir France
Deal found 12/18$1,062
This Gurufare deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/285:10 pmIAD - FAO
1 stop12h 20mAer Lingus
mar. 1/1411:40 amFAO - IAD
2 stops32h 55mAer Lingus
Deal found 12/17$1,193

Find flights from Dulles Intl to Portugal within your budget

Customize your flight search to find flights from Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated diciembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

lun. 1/20

7:15 pm-10:00 am

1 stop9h 45m

Porto

lun. 1/27

5:55 pm-2:30 pm

1 stop25h 35m

$508

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

dom. 1/19

10:30 pm-8:00 am

3 stops28h 30m

Porto

lun. 1/27

9:15 am-2:30 pm

2 stops34h 15m

$545

Washington, D.C.Funchal

IAD - FNC

IADFNC

Washington, D.C. Dulles Intl

lun. 1/20

5:35 pm-9:35 am

1 stop35h 00m

Funchal Madeira

lun. 1/27

10:20 am-3:45 pm

1 stop34h 25m

$563

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

jue. 1/16

12:52 pm-8:00 am

2 stops14h 08m

Lisbon Humberto Delgado

jue. 1/23

11:25 am-3:45 pm

1 stop33h 20m

$568

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

dom. 1/12

12:31 pm-8:00 am

2 stops14h 29m

Lisbon Humberto Delgado

mar. 1/21

11:25 am-3:45 pm

1 stop33h 20m

$570

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

mar. 2/11

1:52 pm-12:05 pm

2 stops17h 13m

Lisbon Humberto Delgado

lun. 2/17

6:35 pm-11:53 pm

2 stops34h 18m

$576

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

lun. 3/31

1:26 pm-10:45 am

2 stops16h 19m

Lisbon Humberto Delgado

mié. 5/7

10:00 am-6:22 pm

1 stop13h 22m

$579

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

vie. 3/14

9:40 pm-4:55 pm

1 stop15h 15m

Lisbon Humberto Delgado

sáb. 3/22

5:55 pm-7:40 pm

1 stop29h 45m

$583

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

mar. 1/14

12:05 pm-8:00 am

1 stop14h 55m

Lisbon Humberto Delgado

mar. 1/21

5:00 am-5:16 pm

2 stops17h 16m

$585

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

lun. 1/13

1:53 pm-9:05 am

2 stops14h 12m

Lisbon Humberto Delgado

mié. 1/22

11:15 am-7:35 pm

2 stops13h 20m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 56 results
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Best time to book a flight from Dulles Intl to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Dulles Intl 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.

Travel insights for flights from Dulles Intl to Portugal

Get recent, data-driven insights about flights from Dulles Intl to Portugal including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Portugal?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portugal (average of $612). Flying from Washington, D.C. Dulles Intl Airport to Portugal in June is currently the most expensive (average of $1,180). 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 IAD to PT?

Find hourly flight availability from Dulles Intl 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 diciembre 18, 2024.

When flying from Washington, D.C. Dulles Intl Airport to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Portugal

Explore weekly flight availability from Dulles Intl to Portugal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated diciembre 18, 2024.

The most flights from IAD to PT0 are scheduled on a Monday (5 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

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.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated diciembre 18, 2024.
Read reviews from past customers who have flown British Airways, American Airlines and Air France from Washington, D.C. to Portugal. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

8.0
Very good
8,604 reviews
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.9
Good
283 reviews
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.8
Good
1,349 reviews
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.7
Good
1,285 reviews
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.6
Good
1,606 reviews
8.0
Very good
8,604 reviews

Crew

8.6

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl Airport to Portugal one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Portugal are Porter Airlines ($357), TAP AIR PORTUGAL ($361), and Royal Air Maroc ($363).

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Portugal?

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Portugal?

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Portugal are TAP AIR PORTUGAL (77%), JetBlue (77%) and Air Canada (62%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Portugal?

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Portugal? While on average our users pay $1,511, our data indicates the cheapest price to be $317. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $535.

  • Can I find deals for flights from Dulles Intl to Portugal that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Portugal?

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

  • Can I find deals for business class flights from Dulles Intl to Portugal?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portugal (average of $612). Flying from Washington, D.C. Dulles Intl Airport to Portugal in June is currently the most expensive (average of $1,180). 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

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Alternative routes for Dulles Intl to Portugal

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

Top 10 airlines flying from Dulles Intl to Portugal

Discover the top 10 airlines that operate flights from Dulles Intl to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$296Average$379FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$422Average$829FlexibilityNo cancel feeOn-time77%
DeltaCheapest$424Average$833FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$429Average$679FlexibilityNo cancel feeOn-time75%
IberiaCheapest$430Average$705FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$458Average$929FlexibilityNo cancel feeOn-timeN/A
Royal Air MarocCheapest$519Average$577FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$533Average$719FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$538Average$996FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$538Average$957FlexibilityNo cancel feeOn-time76%
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