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$263+ Cheap flights from District of Columbia to Porto (OPO)

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — OPO
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from District of Columbia to Porto

Discover tips and strategies to find the most affordable flight options for your journey from District of Columbia (USDC) to Porto (OPO). 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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$518
(Mytrip)

One-way from

$263
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$524
Provider with most accurate pricing for Washington, D.C. (WAS)-Porto flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Porto flights.
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From District of Columbia to Porto
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One-way flight from District of Columbia to Porto
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Highest demand for flights based on searches. 16% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from District of Columbia to Porto

Cheapest flights from District of Columbia to Porto
Explore the most affordable flight options available from District of Columbia to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Mytrip deal was found by Cheapflights users on 1/28. 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.
Thu 2/278:45 pmIAD - OPO
1 stop33h 25mMultiple Airlines
Thu 3/66:00 amOPO - IAD
2 stops32h 46mMultiple Airlines
Deal found 1/28$518
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/278:45 pmIAD - OPO
1 stop14h 55mSWISS
Thu 3/67:30 pmOPO - IAD
1 stop25h 55mSWISS
Deal found 1/28$527
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2211:20 pmIAD - OPO
1 stop20h 15mLufthansa
Wed 4/211:05 amOPO - IAD
1 stop13h 20mLufthansa
Deal found 1/28$534
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/225:52 pmIAD - OPO
2 stops41h 18mUnited Airlines
Wed 4/26:00 amOPO - IAD
2 stops30h 55mUnited Airlines
Deal found 1/28$539
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2711:10 amDCA - OPO
2 stops19h 25mUnited Airlines
Thu 3/66:00 amOPO - DCA
2 stops31h 57mUnited Airlines
Deal found 1/28$539
This Delta deal was found by Cheapflights users on 1/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/215:35 pmIAD - OPO
1 stop11h 55mDelta
Sat 3/16:00 amOPO - IAD
1 stop14h 45mDelta
Deal found 1/29$546
This Air Canada deal was found by Cheapflights users on 1/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/311:52 pmIAD - OPO
2 stops16h 23mAir Canada
Tue 4/88:40 amOPO - IAD
2 stops28h 15mAir Canada
Deal found 1/29$548
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/15:00 pmIAD - OPO
1 stop21h 00mTAP AIR PORTUGAL
Wed 4/3010:25 pmOPO - IAD
1 stop21h 55mTAP AIR PORTUGAL
Deal found 1/29$563
This FlightHub deal was found by Cheapflights users on 1/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/59:40 pmIAD - OPO
1 stop37h 10mTurkish Airlines
Wed 10/2210:45 amOPO - IAD
1 stop29h 05mTurkish Airlines
Deal found 1/29$628
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/106:00 amDCA - OPO
3 stops31h 10mMultiple Airlines
Tue 3/189:55 pmOPO - DCA
3 stops27h 05mMultiple Airlines
Deal found 1/29$642
This CheapOair deal was found by Cheapflights users on 1/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/224:10 pmDCA - OPO
2 stops39h 05mAir Canada
Mon 3/3112:10 pmOPO - DCA
2 stops32h 14mAir Canada
Deal found 1/29$645
This Delta deal was found by Cheapflights users on 1/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:05 amDCA - OPO
2 stops23h 45mDelta
Wed 11/2611:45 amOPO - DCA
2 stops25h 10mDelta
Deal found 1/29$658

Find flights from District of Columbia to Porto within your budget

Customize your flight search to find flights from District of Columbia to Porto 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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 3/6

8:45 pm-4:40 pm

1 stop14h 55m

Porto

Wed 3/12

12:05 pm-5:25 pm

1 stop33h 20m

$518

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 3/3

7:15 pm-11:05 am

1 stop10h 50m

Porto

Mon 3/10

5:55 pm-3:30 pm

1 stop25h 35m

$580

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 3/7

8:40 pm-7:55 pm

2 stops18h 15m

Porto

Sat 3/15

11:40 am-7:40 pm

2 stops36h 00m

$620

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 4/7

10:05 pm-11:15 am

1 stop32h 10m

Porto

Mon 4/14

12:00 pm-7:59 pm

1 stop12h 59m

$641

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 3/31

1:52 pm-11:15 am

2 stops16h 23m

Porto

Tue 4/8

8:40 am-7:55 am

2 stops28h 15m

$646

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 2/19

9:25 pm-9:35 am

1 stop31h 10m

Porto

Mon 2/24

4:10 pm-12:15 pm

1 stop25h 05m

$655

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 3/12

11:10 am-11:15 am

2 stops20h 05m

Porto

Thu 3/20

6:00 am-7:57 pm

2 stops41h 57m

$684

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Thu 3/6

6:00 am-7:20 pm

2 stops32h 20m

Porto

Wed 3/12

8:10 pm-7:57 pm

3 stops27h 47m

$698

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 2/28

5:50 pm-3:15 pm

1 stop16h 25m

Porto

Fri 3/7

6:00 am-3:50 pm

1 stop14h 50m

$731

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 2/27

8:24 am-11:35 am

2 stops22h 11m

Porto

Thu 3/6

6:00 am-9:46 am

2 stops32h 46m

$738

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 28 results
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Best time to book a flight from District of Columbia to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from District of Columbia 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 District of Columbia to Porto

Get recent, data-driven insights about flights from District of Columbia to Porto including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from District of Columbia to Porto?

Currently, January is the cheapest month in which you can book a flight from District of Columbia to Porto (average of $523). Flying from District of Columbia to Porto in June is currently the most expensive (average of $1,091). 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 DC to OPO?

Find hourly flight availability from District of Columbia to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Porto as you normally would.

Rainfall in Porto by month

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

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

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

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated January 30, 2025.
Read through reviews of airlines operating flights from District of Columbia to Porto, such as Delta, KLM and SWISS. 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.
Delta
8.0
Very good
8,454 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Delta
8.0
Very good
8,454 reviews
Delta
8.0
Very good
8,454 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very good
8,454 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

SWISS
7.5
Good
1,584 reviews
Delta
8.0
Very good
8,454 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

United Airlines
7.4
Good
8,913 reviews
Delta
8.0
Very good
8,454 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Turkish Airlines
7.3
Good
3,904 reviews
Delta
8.0
Very good
8,454 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 District of Columbia to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from District of Columbia?

    Porto (OPO) is the airport you will fly into if you book a flight from District of Columbia to Porto. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • What are the cheapest airlines to fly from District of Columbia to Porto one-way?

    $412 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Air Canada and Iberia, with prices starting from $480 and $498, respectively.

  • Can I find deals for flights from District of Columbia to Porto that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Porto.

  • Can I find deals for business class flights from District of Columbia to Porto?

    Yes. Cheapflights offers flight deals from District of Columbia to Porto 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 District of Columbia to Porto?

    Currently, January is the cheapest month in which you can book a flight from District of Columbia to Porto (average of $523). Flying from District of Columbia to Porto in June is currently the most expensive (average of $1,091). 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

Traveling to a place near District of Columbia?

Book flights to District of Columbia if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for District of Columbia to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from District of Columbia to Porto

Discover the top 9 airlines that operate flights from District of Columbia to Porto. 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$422Average$818FlexibilityNo cancel feeOn-time77%
DeltaCheapest$424Average$824FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$430Average$668FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$437Average$719FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$459Average$777FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$525Average$673FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$538Average$826FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$543Average$1,147FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$576Average$701FlexibilityNo cancel feeOn-time70%
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