$249+ Cheap flights from Washington, D.C. (WAS) 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LIS
Aug 3 — Aug 101
1 adult, Economy
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Find cheap flights from Washington, D.C. to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Washington, D.C. to Portugal
Keep the following information in mind while searching for Washington, D.C. to Portugal flight deals. Data was last updated July 29, 2025.
Round-trip from | $426 (Mytrip) |
|---|---|
One-way from | $249 (Mytrip) |
Popular in | December |
Cheapest in | February |
Average price | $1,053 |
Good round-trip deal | $516 or less |
Good one-way deal | $305 or less |
Find flight deals from Washington, D.C. to Portugal
Cheapest flights from Washington, D.C. to PortugalExplore the most affordable flight options available from Washington, D.C. to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.
Explore the most affordable flight options available from Washington, D.C. to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.
This Mytrip deal was found by Cheapflights users on 7/27. 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.
Thu 9/256:50 pmBWI - LIS
1 stop20h 30mPLAY
Fri 10/39:20 pmLIS - BWI
1 stop25h 20mPLAY
Deal found 7/27![PLAY logo]()
$426
This Mytrip deal was found by Cheapflights users on 7/27. 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.
Mon 9/83:41 pmIAD - FAO
2 stops20h 34mMultiple Airlines
Mon 9/158:10 pmFAO - IAD
2 stops22h 20mMultiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$515
This Mytrip deal was found by Cheapflights users on 7/28. 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.
Sat 9/136:50 pmBWI - LIS
2 stops22h 05mMultiple Airlines
Sun 9/215:55 amLIS - BWI
2 stops16h 45mMultiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 7/28. 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.
Tue 10/216:22 pmBWI - OPO
2 stops16h 08mDelta
Thu 11/1311:25 amOPO - BWI
2 stops16h 31mDelta
Deal found 7/28![Delta logo]()
$528
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:30 pmIAD - FNC
1 stop11h 40mTAP AIR PORTUGAL
Mon 12/84:10 amFNC - IAD
1 stop15h 25mTAP AIR PORTUGAL
Deal found 7/29![TAP AIR PORTUGAL logo]()
$531
This oojo deal was found by Cheapflights users on 7/29. 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.
Fri 10/1010:20 pmIAD - FAO
1 stop20h 30mTAP AIR PORTUGAL
Tue 10/146:15 pmFAO - IAD
1 stop26h 05mTAP AIR PORTUGAL
Deal found 7/29![TAP AIR PORTUGAL logo]()
$545
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2310:51 amBWI - OPO
2 stops15h 54mUnited Airlines
Tue 12/236:00 amOPO - BWI
2 stops39h 58mUnited Airlines
Deal found 7/27![United Airlines logo]()
$546
This British Airways deal was found by Cheapflights users on 7/27. 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.
Mon 10/139:35 pmBWI - OPO
1 stop17h 15mBritish Airways
Tue 11/45:30 pmOPO - BWI
1 stop30h 15mBritish Airways
Deal found 7/27![British Airways logo]()
$547
This Mytrip deal was found by Cheapflights users on 7/28. 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.
Mon 8/256:00 amDCA - OPO
3 stops35h 25mMultiple Airlines
Wed 9/37:15 amOPO - DCA
2 stops19h 36mMultiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$566
This Iberia deal was found by Cheapflights users on 7/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:35 pmIAD - OPO
1 stop14h 05mIberia
Tue 10/288:40 pmOPO - IAD
2 stops28h 15mIberia
Deal found 7/28![Iberia logo]()
$568
This Iberia deal was found by Cheapflights users on 7/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/142:55 pmDCA - OPO
2 stops35h 40mIberia
Tue 10/2812:25 pmOPO - DCA
2 stops14h 32mIberia
Deal found 7/28![Iberia logo]()
$568
This Lufthansa deal was found by Cheapflights users on 7/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:20 pmIAD - OPO
1 stop20h 00mLufthansa
Tue 10/2812:30 pmOPO - IAD
1 stop32h 20mLufthansa
Deal found 7/28![Lufthansa logo]()
$569
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. 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 July 29, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Portugal that are best for you.
Fly from
Washington, D.C.
Fly to
Portugal
Route
Depart
Return
Price
BaltimoreLisbon
BWI - LIS
BWILIS
Baltimore/Washington
Thu 9/25
6:50 pm-8:20 pm
1 stop20h 30m
Lisbon Humberto Delgado
Fri 10/3
9:20 pm-5:40 pm
1 stop25h 20m
$426
Washington, D.C.Faro
IAD - FAO
IADFAO
Washington, D.C. Dulles Intl
Mon 9/8
3:41 pm-5:15 pm
2 stops20h 34m
Faro
Mon 9/15
8:10 pm-1:30 pm
2 stops22h 20m
$515
BaltimoreLisbon
BWI - LIS
BWILIS
Baltimore/Washington
Sat 9/13
6:50 pm-9:55 pm
2 stops22h 05m
Lisbon Humberto Delgado
Sun 9/21
5:55 am-5:40 pm
2 stops16h 45m
$519
BaltimorePorto
BWI - OPO
BWIOPO
Baltimore/Washington
Tue 10/21
6:22 pm-3:30 pm
2 stops16h 08m
Porto
Thu 11/13
11:25 am-10:56 pm
2 stops16h 31m
$528
Washington, D.C.Faro
IAD - FAO
IADFAO
Washington, D.C. Dulles Intl
Fri 10/10
10:20 pm-11:50 pm
1 stop20h 30m
Faro
Tue 10/14
6:15 pm-3:20 pm
1 stop26h 05m
$545
BaltimorePorto
BWI - OPO
BWIOPO
Baltimore/Washington
Tue 9/23
10:51 am-7:45 am
2 stops15h 54m
Porto
Tue 12/23
6:00 am-4:58 pm
2 stops39h 58m
$546
BaltimorePorto
BWI - OPO
BWIOPO
Baltimore/Washington
Mon 10/13
9:35 pm-7:50 pm
1 stop17h 15m
Porto
Tue 11/4
5:30 pm-6:45 pm
1 stop30h 15m
$547
Washington, D.C.Porto
DCA - OPO
DCAOPO
Washington, D.C. Reagan-National
Mon 8/25
6:00 am-10:25 pm
3 stops35h 25m
Porto
Wed 9/3
7:15 am-9:51 pm
2 stops19h 36m
$566
Washington, D.C.Porto
IAD - OPO
IADOPO
Washington, D.C. Dulles Intl
Wed 10/1
1:30 pm-3:50 pm
1 stop21h 20m
Porto
Wed 10/8
4:50 pm-11:45 am
1 stop23h 55m
$568
Washington, D.C.Porto
DCA - OPO
DCAOPO
Washington, D.C. Reagan-National
Tue 10/14
2:55 pm-7:35 am
2 stops35h 40m
Porto
Tue 10/28
12:25 pm-10:57 pm
2 stops14h 32m
$568
Showing 1-10 of 60 results
Best time to book a flight from Washington, D.C. to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Washington, D.C. 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. to Portugal
What is the cheapest month to book a flight from Washington, D.C. to Portugal?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Portugal (average of $612). Flying from Washington, D.C. 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 WAS to PT?
Find hourly flight availability from Washington, D.C. 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 July 29, 2025.
It’s typically best to fly out from Washington, D.C. to Portugal in the morning. Doing so could potentially save you 8% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from Washington, D.C. to Portugal?
Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Portugal. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Washington, D.C. to Portugal flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Washington, D.C. to Portugal
Explore weekly flight availability from Washington, D.C. 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 July 29, 2025.
The most flights from WAS to PT0 are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).
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 July 29, 2025.
Read reviews from past customers who have flown Delta, KLM, and Air France from Washington, D.C. to Portugal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Comfort
7.9
Overall
8.0
Crew
8.5
Boarding
8.2
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Food
7.3
Comfort
7.9
Overall
8.0
Crew
8.5
Boarding
8.2
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Food
7.3
Comfort
7.9
Overall
8.0
Crew
8.5
Boarding
8.2
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Food
7.3
Comfort
7.9
Overall
8.0
Crew
8.5
Boarding
8.2
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Food
7.3
Comfort
7.9
Overall
8.0
Crew
8.5
Boarding
8.2
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Food
7.3
Comfort
7.9
Overall
8.0
Crew
8.5
Boarding
8.2
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Washington, D.C. to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Washington, D.C. to Portugal
Discover the top 10 airlines that operate flights from Washington, D.C. 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 July 29, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$333 | Average$382 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$418 | Average$1,096 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$424 | Average$763 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$473 | Average$920 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$508 | Average$732 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$510 | Average$926 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$766 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$520 | Average$1,116 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$542 | Average$651 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$552 | Average$643 | FlexibilityNo cancel fee | On-time75% |