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Cheap flights from Dulles Intl (IAD) to Porto (OPO) from $355

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 7/15. 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.
IAD — OPO
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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The best prices from Washington, D.C. Dulles Intl to Porto are usually found in January or February, booked 35 days in advance, depart on a Sunday or Saturday and return on a Tuesday

Cheap flight deals from Dulles Intl to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 May 30, 2024.

Popular in

December

Cheapest in

January

Round-trip from

$523

One-way from

$355
High demand for flights, 30% potential price rise
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Best time to find cheap flights, 36% potential price drop
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From Washington, D.C. Dulles Intl to Porto
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One-way flight from Washington, D.C. Dulles Intl to Porto
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What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Porto?

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Porto. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Porto?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 18 days in advance, which can save you up to 34% on flights from Washington, D.C. Dulles Intl Airport to Porto compared to booking the week you need them. Waiting 18 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $584. For sooner than that we have options available in the next 3 days from $744.

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

January is one of the best times of the year to fly to Porto from Washington, D.C. Dulles Intl Airport. Prices for January average $617 per person but you can even find prices for as low as $417. The most expensive prices can be found in the month of June. Opting for a January flight can save you 35% on your journey compared to booking in June

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

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Porto at noon. Doing so could potentially save you 43% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap SWISS flights from Dulles Intl to Porto

Explore cheap flight options specifically provided by SWISS for the route between Dulles Intl and Porto. 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.
Peruse some of the lowest-priced SWISS flights we've found from Washington, D.C. to Porto. Deals update often to give you more flight options matching your criteria
Mon 9/238:45 pmIAD - OPO
2 stops15h 40mSWISS
Wed 10/28:40 amOPO - IAD
1 stop12h 35mSWISS
Deal found 5/30$601
Mon 9/238:45 pmIAD - OPO
2 stops15h 40mSWISS
Wed 10/22:35 pmOPO - IAD
2 stops30h 40mSWISS
Deal found 5/30$629
Fri 9/278:45 pmIAD - OPO
1 stop33h 45mSWISS
Sun 10/62:35 pmOPO - IAD
2 stops30h 40mSWISS
Deal found 5/29$631
Sun 8/188:45 pmIAD - OPO
2 stops15h 35mSWISS
Sat 8/242:50 amOPO - IAD
2 stops42h 25mSWISS
Deal found 5/30$659

Cheap TAP AIR PORTUGAL flights from Dulles Intl to Porto

Explore cheap flight options specifically provided by TAP AIR PORTUGAL for the route between Dulles Intl and Porto. 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 TAP AIR PORTUGAL flights traveling from Washington, D.C. to Porto. Deals frequently update to provide users with more options.
Mon 10/75:35 pmIAD - OPO
1 stop10h 25mTAP AIR PORTUGAL
Mon 10/1410:55 pmOPO - IAD
1 stop21h 25mTAP AIR PORTUGAL
Deal found 5/29$428
Wed 10/25:40 pmIAD - OPO
1 stop20h 20mTAP AIR PORTUGAL
Mon 10/1410:55 pmOPO - IAD
1 stop21h 25mTAP AIR PORTUGAL
Deal found 5/29$430
Tue 11/55:30 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
Wed 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$431
Mon 9/2310:25 pmIAD - OPO
1 stop21h 05mTAP AIR PORTUGAL
Wed 10/29:20 pmOPO - IAD
1 stop28h 00mTAP AIR PORTUGAL
Deal found 5/30$434
Sun 11/310:30 pmIAD - OPO
1 stop11h 50mTAP AIR PORTUGAL
Wed 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$454
Sun 9/810:20 pmIAD - OPO
1 stop15h 40mTAP AIR PORTUGAL
Wed 9/2510:55 pmOPO - IAD
1 stop26h 25mTAP AIR PORTUGAL
Deal found 5/30$466
Sun 9/2210:20 pmIAD - OPO
1 stop17h 40mTAP AIR PORTUGAL
Sun 10/69:20 pmOPO - IAD
1 stop22h 55mTAP AIR PORTUGAL
Deal found 5/29$468
Thu 11/75:30 pmIAD - OPO
1 stop11h 25mTAP AIR PORTUGAL
Wed 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$471
Sun 9/2910:20 pmIAD - OPO
1 stop10h 50mTAP AIR PORTUGAL
Fri 10/410:00 amOPO - IAD
1 stop13h 25mTAP AIR PORTUGAL
Deal found 5/28$486

Cheap Dulles Intl to Porto flights in May & June 2024

Find cheap flight options from Dulles Intl to Porto 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.
The lowest fares we've come across on flights traveling from Washington, D.C. to Porto in May and June 2024. For more flight deals, be sure to check back very soon.
Thu 6/610:20 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
Wed 6/1211:00 amOPO - IAD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 5/30$751
Sun 6/235:40 pmIAD - OPO
1 stop10h 20mTAP AIR PORTUGAL
Wed 7/38:55 amOPO - IAD
1 stop11h 20mTAP AIR PORTUGAL
Deal found 5/29$798
Mon 6/106:25 pmIAD - OPO
1 stop16h 05mAir France
Sun 6/169:15 amOPO - IAD
1 stop11h 55mAir France
Deal found 5/30$824
Wed 6/266:25 pmIAD - OPO
1 stop16h 05mDelta
Wed 7/105:00 amOPO - IAD
1 stop16h 00mDelta
Deal found 5/29$826
Thu 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
Wed 6/129:15 amOPO - IAD
1 stop14h 55mDelta
Deal found 5/30$828
Sat 6/85:03 pmIAD - OPO
2 stops17h 27mDelta
Sat 6/155:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 5/29$830
Thu 5/305:25 pmIAD - OPO
1 stop12h 15mKLM
Wed 6/129:15 amOPO - IAD
1 stop11h 55mKLM
Deal found 5/29$836
Wed 6/265:50 pmIAD - OPO
1 stop23h 25mKLM
Sun 6/3010:05 pmOPO - IAD
1 stop22h 30mKLM
Deal found 5/30$839
Thu 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
Wed 6/1211:25 amOPO - IAD
2 stops17h 34mDelta
Deal found 5/30$840

Dulles Intl to Porto 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and Porto 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.
The lowest fares we've come across on flights traveling from Washington, D.C. to Porto in May and June 2024. For more flight deals, be sure to check back very soon.
Mon 10/75:35 pmIAD - OPO
1 stop10h 25mTAP AIR PORTUGAL
Mon 10/1410:55 pmOPO - IAD
1 stop21h 25mTAP AIR PORTUGAL
Deal found 5/29$428
Wed 10/25:40 pmIAD - OPO
1 stop20h 20mTAP AIR PORTUGAL
Mon 10/1410:55 pmOPO - IAD
1 stop21h 25mTAP AIR PORTUGAL
Deal found 5/29$430
Tue 11/55:30 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
Wed 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$431
Sun 12/110:30 pmIAD - OPO
1 stop18h 30mTAP AIR PORTUGAL
Mon 12/911:25 amOPO - IAD
1 stop31h 15mTAP AIR PORTUGAL
Deal found 5/30$437
Thu 11/75:35 pmIAD - OPO
1 stop18h 35mKLM
Thu 11/148:10 pmOPO - IAD
1 stop24h 35mKLM
Deal found 5/29$438
Sun 11/310:30 pmIAD - OPO
1 stop11h 50mTAP AIR PORTUGAL
Wed 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$454
Sun 9/810:20 pmIAD - OPO
1 stop15h 40mTAP AIR PORTUGAL
Wed 9/2510:55 pmOPO - IAD
1 stop26h 25mTAP AIR PORTUGAL
Deal found 5/30$466
Sun 9/2210:20 pmIAD - OPO
1 stop17h 40mTAP AIR PORTUGAL
Sun 10/69:20 pmOPO - IAD
1 stop22h 55mTAP AIR PORTUGAL
Deal found 5/29$468
Thu 11/75:30 pmIAD - OPO
1 stop11h 25mTAP AIR PORTUGAL
Wed 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$471

Dulles Intl to Porto flights leaving soon

Find last-minute flight options from Dulles Intl to Porto 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.
Book one of these great deals on flights from Washington, D.C. to Porto. It's wise to confirm all flight details are correct before booking.
Thu 6/610:20 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
Wed 6/1211:00 amOPO - IAD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 5/30$751
Thu 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
Wed 6/129:15 amOPO - IAD
1 stop14h 55mDelta
Deal found 5/30$828
Sat 6/85:03 pmIAD - OPO
2 stops17h 27mDelta
Sat 6/155:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 5/29$830
Thu 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
Wed 6/1211:25 amOPO - IAD
2 stops17h 34mDelta
Deal found 5/30$840
Thu 6/610:20 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
Wed 6/1211:00 amOPO - IAD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 5/29$846
Sun 6/95:40 pmIAD - OPO
1 stop10h 20mTAP AIR PORTUGAL
Wed 6/267:00 amOPO - IAD
1 stop13h 15mTAP AIR PORTUGAL
Deal found 5/29$988
Fri 6/78:45 pmIAD - OPO
1 stop29h 50mMultiple Airlines
Thu 8/1510:15 amOPO - IAD
1 stop34h 25mMultiple Airlines
Deal found 5/29$1,005
Sat 6/88:45 pmIAD - OPO
1 stop9h 55mBritish Airways
Sat 6/158:15 amOPO - IAD
1 stop16h 00mBritish Airways
Deal found 5/29$1,007
Fri 6/76:25 pmIAD - OPO
1 stop16h 05mDelta
Thu 8/159:15 amOPO - IAD
2 stops19h 43mDelta
Deal found 5/29$1,027

One-way flights to Porto from Dulles Intl

Search for one-way flight options from Dulles Intl to Porto. 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 in need of a one-way flight from Washington, D.C. to Porto can choose from these deals. Those seeking round-trip flights from Washington, D.C. to Porto should utilize the search form at the the top of the page.
Mon 7/156:50 pmIAD - OPO
1 stop20h 10mPLAY
Deal found 5/29$355
Wed 7/1010:20 pmIAD - OPO
1 stop15h 40mTAP AIR PORTUGAL
Deal found 5/30$400
Sun 7/215:40 pmIAD - OPO
1 stop23h 50mTAP AIR PORTUGAL
Deal found 5/29$416
Wed 7/106:50 pmIAD - OPO
2 stops18h 20mMultiple Airlines
Deal found 5/30$430
Sun 8/1811:15 pmIAD - OPO
3 stops27h 20mMultiple Airlines
Deal found 5/30$449
Thu 8/85:20 pmIAD - OPO
1 stop11h 35mTAP AIR PORTUGAL
Deal found 5/30$456
Mon 6/35:35 pmIAD - OPO
1 stop25h 45mTAP AIR PORTUGAL
Deal found 5/30$487
Wed 7/1011:15 pmIAD - OPO
3 stops51h 45mMultiple Airlines
Deal found 5/30$505
Sun 8/411:15 pmIAD - OPO
2 stops29h 25mMultiple Airlines
Deal found 5/29$519

Find flights from Dulles Intl to Porto within your budget

Customize your flight search to find flights from Dulles Intl 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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$428 - $605

Route

Depart

Return

Price

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 10/7

1 stop10h 25m

Porto

Mon 10/14

1 stop21h 25m

$428

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 11/7

1 stop18h 35m

Porto

Thu 11/14

1 stop24h 35m

$438

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 11/11

2 stops17h 00m

Porto

Mon 11/18

1 stop12h 40m

$500

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 9/30

2 stops21h 00m

Porto

Wed 10/16

1 stop27h 40m

$516

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 11/11

2 stops19h 20m

Porto

Mon 11/18

2 stops34h 08m

$524

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 11/6

2 stops16h 05m

Porto

Wed 11/13

2 stops20h 19m

$532

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 11/1

1 stop16h 35m

Porto

Sun 11/10

2 stops33h 32m

$533

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 9/23

2 stops15h 40m

Porto

Wed 10/2

1 stop12h 35m

$601

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 9/27

2 stops34h 30m

Porto

Wed 10/16

1 stop11h 55m

$605

Flights are sorted by cheapest first

Deals found on 5/29

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Porto. Price data was last updated on May 24, 2024.
To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Porto, you should look to book at least 35 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Porto. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Porto flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday 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 Dulles Intl to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto 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.

Temperature and rainfall in Porto by month

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

OPO

Temperature

48.2 - 68 °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 May 30, 2024.
To help decide which airline to fly from Washington, D.C. to Porto, see what other customers have to say about SWISS, TAP AIR PORTUGAL and Air France. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,520 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,954 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.5
Good
1,730 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,777 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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 Washington, D.C. Dulles Intl?

    Located just 6.8 mi from the city center, Porto is the airport most travelers will use when flying to Porto from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Porto (OPO) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 11 different airlines.

  • Can I find flights from Washington, D.C. Dulles Intl Airport to Porto for under $500 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Porto for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $428, but on average you can expect to pay $475.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Porto for under $800?

    There are currently 13+ open flights from Washington, D.C. Dulles Intl Airport to Porto within the next 7 days for less than $800.

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

    Currently priced at $428, TAP AIR PORTUGAL will fly you from Washington, D.C. Dulles Intl Airport to Porto and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and Delta - these airlines can fly you to your destination from $438 and $500, respectively. These flights start at 37% lower than the current average price 3 months from now.

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

    $355 is the cheapest one-way deal found within the past few days, from PLAY. You may also be able to find cheap deals on TAP AIR PORTUGAL and Air Canada, with prices starting from $400 and $543, respectively.

  • What does IAD to OPO mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Washington, D.C. Dulles Intl Airport to Porto Airport flight would often be abbreviated as a IAD to OPO flight.

  • Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Porto?

    Flights departing from Washington, D.C. Dulles Intl Airport and landing in Porto layover in Lisbon most frequently.

  • What are some popular things to do or see while on a layover in Lisbon?

    Most Lisbon visitors opt to spend their time experiencing Chiado, Praça do Príncipe Real, and Praça de D. Pedro IV. Travelers on a layover in Lisbon can visit Chiado, Praça do Príncipe Real, and Praça de D. Pedro IV, by traveling 4.5 mi, 4.2 mi, and 4.3 mi, respectively after landing at Lisbon Humberto Delgado. Travelers can book a car rental at Lisbon Humberto Delgado for about $28 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Porto flights?

    Washington, D.C. Dulles Intl Airport to Porto flights have a layover in Madrid least often.

  • Can I find deals for flights from Dulles Intl to Porto that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to Porto 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 Dulles Intl to Porto with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to Porto 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 Dulles Intl to Porto that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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.

  • Can I find deals for flights from Dulles Intl to Porto that allow pets onboard?

    Many airlines flying from Dulles Intl to Porto 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 Dulles Intl to Porto?

    Yes, you can often find last-minute deals on Dulles Intl to Porto 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 Washington, D.C. Dulles Intl Airport to Porto flight deals updated?

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

  • What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Porto?

    Consider American Airlines, Air France or British Airways when booking your flight. These represent the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Porto.

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

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Porto (average of $523). Flying from Washington, D.C. Dulles Intl Airport to Porto in June is currently the most expensive (average of $994). 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.

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Alternative routes for Dulles Intl to Porto
See prices for flight routes from nearby airports that may be better suited for you.

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Top 10 airlines flying from Dulles Intl to Porto

Discover the top 10 airlines that operate flights from Dulles Intl 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$413Average$476FlexibilityNo cancel feeOn-time79%
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Air FranceCheapest$418Average$638FlexibilityNo cancel feeOn-time77%
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DeltaCheapest$421Average$698FlexibilityNo cancel feeOn-timeN/A
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LufthansaCheapest$423Average$542FlexibilityNo cancel feeOn-time76%
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KLMCheapest$428Average$568FlexibilityNo cancel feeOn-time75%
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Brussels AirlinesCheapest$435Average$440FlexibilityNo cancel feeOn-timeN/A
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IberiaCheapest$457Average$672FlexibilityNo cancel feeOn-time77%
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United AirlinesCheapest$485Average$997FlexibilityNo cancel feeOn-time69%
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TAP AIR PORTUGALCheapest$500Average$946FlexibilityNo cancel feeOn-timeN/A
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British AirwaysCheapest$507Average$594FlexibilityNo cancel feeOn-time70%
Search British Airways flights
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