Cheap flights from Porto (OPO) to Washington, D.C. (WAS) from $303

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
OPO — WAS
Jun 4 — Jun 111

Cheap flight deals from Porto to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Washington, D.C. (WAS). 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 May 30, 2024.

Popular in

July

Cheapest in

April

Average price

$561

Round-trip from

$236
High demand for flights, 36% potential price rise
Best time to find cheap flights, 29% potential price drop
Average for round-trip flights in May 2024
From Porto to Washington, D.C. (WAS)

What is the cheapest day to fly round-trip from Porto to Washington, D.C.?

Flights from Porto to Washington, D.C. are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

What is the cheapest month to fly from Porto to Washington, D.C.?

April is one of the best times of the year to fly to Washington, D.C. from Porto. Prices for April average $665 per person but you can even find prices for as low as $470. The most expensive prices can be found in the month of July. Opting for a April flight can save you 55% on your journey compared to booking in July

What is the cheapest time of day to fly from OPO to WAS?

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

Cheap SWISS flights from Porto to Washington, D.C.

Explore cheap flight options specifically provided by SWISS for the route between Porto and Washington, D.C.. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Find some of the cheapest SWISS flights traveling from Porto to Washington, D.C.. Deals update often to give you more flight options matching your criteria
Thu 9/198:40 amOPO - IAD
1 stop12h 35mSWISS
Thu 9/268:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/29$558
Thu 9/192:35 pmOPO - IAD
2 stops30h 40mSWISS
Thu 9/268:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/29$587
Thu 9/192:35 pmOPO - IAD
2 stops30h 40mSWISS
Thu 9/268:45 pmIAD - OPO
2 stops36h 00mSWISS
Deal found 5/29$615
Sat 6/157:20 pmOPO - IAD
1 stop25h 55mSWISS
Mon 7/18:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/29$733
Sun 6/168:40 amOPO - IAD
1 stop12h 35mSWISS
Mon 8/58:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/30$747
Sun 6/168:40 amOPO - IAD
1 stop12h 35mSWISS
Mon 8/58:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/29$748
Sat 6/157:20 pmOPO - IAD
2 stops23h 55mSWISS
Mon 7/18:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/29$752
Sun 6/168:40 amOPO - IAD
1 stop12h 35mSWISS
Mon 8/58:45 pmIAD - OPO
2 stops36h 00mSWISS
Deal found 5/30$781
Sun 6/168:40 amOPO - IAD
1 stop12h 35mSWISS
Mon 8/58:45 pmIAD - OPO
2 stops36h 00mSWISS
Deal found 5/29$784

Cheap United Airlines flights from Porto to Washington, D.C.

Explore cheap flight options specifically provided by United Airlines for the route between Porto and Washington, D.C.. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Some of the best deals we've found on United Airlines flights traveling from Porto to Washington, D.C.. Deals frequently update to provide users with more options.
Thu 6/66:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Sun 6/1610:23 pmIAD - OPO
2 stops36h 17mUnited Airlines
Deal found 5/29$581
Thu 6/69:00 amOPO - IAD
1 stop12h 24mUnited Airlines
Sun 6/1610:23 pmIAD - OPO
2 stops36h 17mUnited Airlines
Deal found 5/29$584
Sat 6/156:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Mon 7/16:30 amIAD - OPO
1 stop19h 25mUnited Airlines
Deal found 5/30$722
Sat 6/156:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Mon 7/16:30 amIAD - OPO
1 stop19h 25mUnited Airlines
Deal found 5/29$741
Sat 6/159:15 amOPO - DCA
1 stop17h 22mUnited Airlines
Mon 7/18:25 amDCA - OPO
1 stop17h 30mUnited Airlines
Deal found 5/29$743
Thu 6/69:00 amOPO - DCA
1 stop12h 27mUnited Airlines
Fri 6/218:25 amDCA - OPO
1 stop17h 25mUnited Airlines
Deal found 5/30$762
Sat 6/156:00 amOPO - DCA
2 stops20h 37mUnited Airlines
Mon 7/18:25 amDCA - OPO
1 stop17h 30mUnited Airlines
Deal found 5/30$765
Sat 6/156:00 amOPO - DCA
2 stops33h 17mUnited Airlines
Mon 7/110:00 amDCA - OPO
1 stop15h 55mUnited Airlines
Deal found 5/29$768
Thu 6/612:35 pmOPO - DCA
1 stop25h 48mUnited Airlines
Fri 6/216:00 amDCA - OPO
2 stops28h 55mUnited Airlines
Deal found 5/30$774

Cheap Porto to Washington, D.C. flights in May & June 2024

Find cheap flight options from Porto to Washington, D.C. specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
These are some of the best deals we've found on flights to Washington, D.C. in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 6/66:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Sun 6/1610:23 pmIAD - OPO
2 stops36h 17mUnited Airlines
Deal found 5/29$581
Thu 6/69:00 amOPO - IAD
1 stop12h 24mUnited Airlines
Sun 6/1610:23 pmIAD - OPO
2 stops36h 17mUnited Airlines
Deal found 5/29$584
Thu 6/69:00 amOPO - IAD
1 stop27h 24mUnited Airlines
Fri 6/2110:25 pmIAD - OPO
1 stop27h 30mUnited Airlines
Deal found 5/30$708
Sat 6/156:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Mon 7/16:30 amIAD - OPO
1 stop19h 25mUnited Airlines
Deal found 5/30$722
Sat 6/159:15 amOPO - DCA
1 stop30h 13mUnited Airlines
Mon 7/17:00 amDCA - OPO
1 stop18h 55mUnited Airlines
Deal found 5/30$724
Sat 6/159:15 amOPO - IAD
1 stop31h 09mUnited Airlines
Mon 7/18:30 amIAD - OPO
1 stop17h 25mUnited Airlines
Deal found 5/30$724
Sat 6/157:20 pmOPO - IAD
1 stop25h 55mSWISS
Mon 7/18:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/29$733
Thu 6/610:15 amOPO - DCA
2 stops28h 02mBritish Airways
Fri 6/217:30 pmDCA - OPO
2 stops43h 15mBritish Airways
Deal found 5/30$735
Sat 6/156:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Mon 7/16:30 amIAD - OPO
1 stop19h 25mUnited Airlines
Deal found 5/29$741

Porto to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between Porto and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
These are some of the best deals we've found on flights to Washington, D.C. in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 9/196:30 amOPO - DCA
2 stops19h 46mDelta
Thu 9/261:30 pmDCA - OPO
2 stops13h 55mDelta
Deal found 5/29$542
Thu 9/198:40 amOPO - IAD
1 stop12h 35mSWISS
Thu 9/268:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/29$558
Thu 6/66:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Sun 6/1610:23 pmIAD - OPO
2 stops36h 17mUnited Airlines
Deal found 5/29$581
Thu 6/69:00 amOPO - IAD
1 stop12h 24mUnited Airlines
Sun 6/1610:23 pmIAD - OPO
2 stops36h 17mUnited Airlines
Deal found 5/29$584
Thu 9/192:35 pmOPO - IAD
2 stops30h 40mSWISS
Thu 9/268:45 pmIAD - OPO
1 stop30h 10mSWISS
Deal found 5/29$587
Thu 9/192:35 pmOPO - IAD
2 stops30h 40mSWISS
Thu 9/268:45 pmIAD - OPO
2 stops36h 00mSWISS
Deal found 5/29$615
Thu 6/69:00 amOPO - IAD
1 stop27h 24mUnited Airlines
Fri 6/2110:25 pmIAD - OPO
1 stop27h 30mUnited Airlines
Deal found 5/30$708
Sat 6/156:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Mon 7/16:30 amIAD - OPO
1 stop19h 25mUnited Airlines
Deal found 5/30$722
Sat 6/159:15 amOPO - DCA
1 stop30h 13mUnited Airlines
Mon 7/17:00 amDCA - OPO
1 stop18h 55mUnited Airlines
Deal found 5/30$724

Porto to Washington, D.C. flights leaving soon

Find last-minute flight options from Porto to Washington, D.C. for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Consider one of these great deals we found on last-minute flights from Porto to Washington, D.C.. To prevent any unwanted surprises, users should verify their flight info before booking.
Thu 6/66:00 amOPO - IAD
2 stops30h 26mUnited Airlines
Sun 6/1610:23 pmIAD - OPO
2 stops36h 17mUnited Airlines
Deal found 5/29$581
Thu 6/69:00 amOPO - IAD
1 stop12h 24mUnited Airlines
Sun 6/1610:23 pmIAD - OPO
2 stops36h 17mUnited Airlines
Deal found 5/29$584
Thu 6/610:15 amOPO - DCA
2 stops28h 02mBritish Airways
Fri 6/217:30 pmDCA - OPO
2 stops43h 15mBritish Airways
Deal found 5/30$735
Thu 6/69:00 amOPO - DCA
1 stop12h 27mUnited Airlines
Fri 6/218:25 amDCA - OPO
1 stop17h 25mUnited Airlines
Deal found 5/30$762
Thu 6/612:35 pmOPO - DCA
1 stop25h 48mUnited Airlines
Fri 6/216:00 amDCA - OPO
2 stops28h 55mUnited Airlines
Deal found 5/30$774
Thu 6/612:15 pmOPO - IAD
1 stop33h 00mSWISS
Sun 6/168:45 pmIAD - OPO
1 stop33h 35mSWISS
Deal found 5/29$813
Thu 6/69:55 pmOPO - IAD
3 stops24h 45mMultiple Airlines
Sun 6/1610:15 pmIAD - OPO
3 stops29h 45mMultiple Airlines
Deal found 5/29$871
Thu 6/66:00 amOPO - IAD
2 stops16h 40mMultiple Airlines
Sun 6/1610:15 pmIAD - OPO
3 stops29h 45mMultiple Airlines
Deal found 5/29$913
Thu 6/66:05 pmOPO - DCA
1 stop18h 44mTAP AIR PORTUGAL
Sun 6/161:05 pmDCA - OPO
2 stops16h 50mTAP AIR PORTUGAL
Deal found 5/29$2,016

One-way flights to Washington, D.C. from Porto

Search for one-way flight options from Porto to Washington, D.C.. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Users traveling one-way from Porto to Washington, D.C. can select one of these great deals. Users needing a return flight from Porto to Washington, D.C. should utilize the search form above.
Wed 6/57:40 pmOPO - IAD
2 stops27h 00mMultiple Airlines
Deal found 5/30$303
Wed 6/55:35 pmOPO - IAD
3 stops29h 05mMultiple Airlines
Deal found 5/30$311
Mon 11/1111:25 amOPO - BWI
2 stops34h 30mMultiple Airlines
Deal found 5/30$362
Sun 9/159:55 pmOPO - BWI
2 stops38h 39mMultiple Airlines
Deal found 5/29$380
Sun 9/1510:55 pmOPO - BWI
3 stops37h 39mMultiple Airlines
Deal found 5/29$390
Tue 7/27:30 pmOPO - BWI
3 stops51h 25mMultiple Airlines
Deal found 5/29$395
Mon 11/111:35 pmOPO - BWI
3 stops32h 20mMultiple Airlines
Deal found 5/30$401
Thu 6/276:30 amOPO - BWI
2 stops40h 10mMultiple Airlines
Deal found 5/29$418
Mon 11/116:30 pmOPO - IAD
2 stops27h 25mMultiple Airlines
Deal found 5/29$419

Find flights from Porto to Washington, D.C. within your budget

Customize your flight search to find flights from Porto to Washington, D.C. 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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$542 - $1,178

Route

Depart

Return

Price

PortoWashington, D.C. Reagan-National

OPO - DCA

OPODCA

Porto

Thu 9/19

2 stops19h 46m

Washington, D.C. Reagan-National

Thu 9/26

2 stops13h 55m

$542

PortoWashington, D.C. Dulles Intl

OPO - IAD

OPOIAD

Porto

Thu 9/19

1 stop12h 35m

Washington, D.C. Dulles Intl

Thu 9/26

1 stop30h 10m

$558

PortoWashington, D.C. Dulles Intl

OPO - IAD

OPOIAD

Porto

Thu 9/19

2 stops30h 40m

Washington, D.C. Dulles Intl

Thu 9/26

1 stop30h 10m

$587

PortoWashington, D.C. Dulles Intl

OPO - IAD

OPOIAD

Porto

Thu 9/19

2 stops30h 40m

Washington, D.C. Dulles Intl

Thu 9/26

2 stops36h 00m

$615

PortoWashington, D.C. Dulles Intl

OPO - IAD

OPOIAD

Porto

Sat 6/15

2 stops30h 26m

Washington, D.C. Dulles Intl

Mon 7/1

1 stop19h 25m

$722

PortoWashington, D.C. Dulles Intl

OPO - IAD

OPOIAD

Porto

Sun 6/16

2 stops50h 27m

Washington, D.C. Dulles Intl

Mon 8/5

2 stops58h 55m

$826

PortoWashington, D.C. Reagan-National

OPO - DCA

OPODCA

Porto

Sun 6/16

2 stops33h 02m

Washington, D.C. Reagan-National

Mon 8/5

2 stops19h 25m

$852

PortoBaltimore/Washington

OPO - BWI

OPOBWI

Porto

Sun 6/16

1 stop31h 10m

Baltimore/Washington

Mon 8/5

1 stop12h 45m

$1,000

PortoWashington, D.C. Reagan-National

OPO - DCA

OPODCA

Porto

Sun 6/16

1 stop18h 44m

Washington, D.C. Reagan-National

Mon 8/5

2 stops14h 25m

$1,178

Flights are sorted by cheapest first

Deals found on 5/29

What is the cheapest day to fly from Porto to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Porto to Washington, D.C.. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Porto to Washington, D.C. flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Porto to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Porto 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.

Temperature and rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

35.6 - 80.6 °F

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated May 30, 2024.
Read reviews from past customers who have flown SWISS, United Airlines and Austrian Airlines from Porto to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,457 reviews

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.0
Very good
10,457 reviews
8.0
Very good
10,457 reviews

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.9
Good
1,520 reviews
8.0
Very good
10,457 reviews

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
1,954 reviews
8.0
Very good
10,457 reviews

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.7
Good
1,023 reviews
8.0
Very good
10,457 reviews

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.5
Good
1,730 reviews
8.0
Very good
10,457 reviews

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Porto to Washington, D.C.. 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 from for flights from Porto to Washington, D.C.?

    Porto (OPO) is the airport you will fly out of if you book a flight from Porto to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Porto; the airport handles an average of 0 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Porto airport to Washington, D.C.. It is only a 6.8 mi journey to Porto (OPO) from Porto’s city center.

  • Can I find flights from Porto to Washington, D.C. for under $600 on Cheapflights?

    Yes, there are multiple flights from Porto to Washington, D.C. for under $600. The cheapest flight booked recently is on Delta for just $542, but on average you can expect to pay $741.

  • Are there last-minute flights available from Porto to Washington, D.C. for under $600?

    There are currently 10+ open flights from Porto to Washington, D.C. within the next 7 days for less than $600.

  • What are the cheapest airlines flying from Porto to Washington, D.C. round-trip?

    According to our current data, Delta ($542), SWISS ($558), and United Airlines ($722) offers the cheapest pricing from Porto to Washington, D.C.. You may be able to fly from Porto to Washington, D.C. for 18% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Porto to Washington, D.C. one-way?

    One-way options have recently been found by users for as low as $474 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include British Airways from $502 and PLAY from $503 one-way.

  • What are the most popular routes from Porto to Washington, D.C.?

  • What does OPO to IAD mean?

    OPO stands for Porto Airport, while IAD stands for Washington, D.C. Dulles Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

  • Can I find deals for flights from Porto to Washington, D.C. that include extra baggage allowance?

    The amount of baggage you can bring on your Porto to Washington, D.C. flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Porto to Washington, D.C. with specific airlines?

    Yes, Cheapflights allows you to browse and filter Porto to Washington, D.C. flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Porto to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Porto to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Washington, D.C.?

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

  • Can I find deals for business class flights from Porto to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Porto to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Porto to Washington, D.C. that allow pets onboard?

    Many airlines flying from Porto to Washington, D.C. offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Porto to Washington, D.C.?

    Yes, you can often find last-minute deals on Porto to Washington, D.C. flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Porto to Washington, D.C. flight deals updated?

    The Porto to Washington, D.C. flight deals you see on this page were last updated on 5/30.

  • What is the cheapest month to book a flight from Porto to Washington, D.C.?

    Currently, September is the cheapest month in which you can book a flight from Porto to Washington, D.C. (average of $278). Flying from Porto to Washington, D.C. in June is currently the most expensive (average of $388). 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

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Alternative routes for Porto to Washington, D.C.
See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Porto to Washington, D.C.

Discover the top 2 airlines that operate flights from Porto to Washington, D.C.. 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$488Average$540FlexibilityNo cancel feeOn-time75%
Search KLM flights
TAP AIR PORTUGALCheapest$501Average$697FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

Search flights from Porto to Washington, D.C. by cabin class

Find flights from Porto to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

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How does Cheapflights help users find flights from Porto to Washington, D.C.?

When you search for this flight from Porto to Washington, D.C., Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Porto to Washington, D.C.?

Cheapflights simply makes it quick and affordable to book flights from Porto to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Porto to Washington, D.C. with no change fees?

Yes, we can. To see specific flights from Porto to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Porto to Washington, D.C. become cheaper?

Of course! You can now track prices for flights from Porto to Washington, D.C. and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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