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$292+ Cheap flights from Washington 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OPO
Nov 10 — Nov 171
1 adult
Sun 11/10
Sun 11/17
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Find flight deals from Washington to Porto

Cheapest flights from Washington to Porto
Explore the most affordable flight options available from Washington to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2024.

This Mytrip deal was found by Cheapflights users on 11/4. 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.
Wed 12/45:15 amSEA - OPO
3 stops32h 45mMultiple Airlines
Wed 12/118:55 amOPO - SEA
3 stops35h 00mMultiple Airlines
Deal found 11/4$698
This FareScan deal was found by Cheapflights users on 11/4. 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 FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:00 pmSEA - OPO
1 stop36h 25mTurkish Airlines
Wed 12/1111:00 amOPO - SEA
1 stop38h 05mTurkish Airlines
Deal found 11/4$720
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/42:00 pmSEA - OPO
1 stop17h 15mUnited Airlines
Wed 12/116:00 amOPO - SEA
2 stops47h 40mUnited Airlines
Deal found 11/4$754
This KLM deal was found by Cheapflights users on 11/4. 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.
Mon 12/912:34 pmSEA - OPO
1 stop14h 16mKLM
Mon 12/1612:15 pmOPO - SEA
1 stop31h 37mKLM
Deal found 11/4$758
This KLM deal was found by Cheapflights users on 11/5. 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.
Tue 12/310:15 amPDX - OPO
2 stops16h 35mKLM
Mon 12/166:20 amOPO - PDX
2 stops23h 13mKLM
Deal found 11/5$824
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/31:00 pmPDX - OPO
2 stops18h 15mUnited Airlines
Mon 12/1612:25 pmOPO - PDX
3 stops44h 10mUnited Airlines
Deal found 11/5$1,070
This Delta deal was found by Cheapflights users on 11/4. 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.
Mon 12/167:15 amSEA - OPO
2 stops19h 35mDelta
Thu 1/911:15 amOPO - SEA
1 stop32h 35mDelta
Deal found 11/4$1,113
This Expedia deal was found by Cheapflights users on 11/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/65:35 amPDX - OPO
2 stops42h 05mIberia
Sat 12/219:55 pmOPO - PDX
2 stops33h 49mIberia
Deal found 11/3$1,125
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/37:40 amPDX - OPO
3 stops30h 45mMultiple Airlines
Mon 12/166:00 amOPO - PDX
3 stops26h 35mMultiple Airlines
Deal found 11/5$1,178
This KAYAK deal was found by Cheapflights users on 11/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/162:00 pmSEA - OPO
1 stop17h 25mLufthansa
Thu 1/912:30 pmOPO - SEA
1 stop31h 40mLufthansa
Deal found 11/4$1,296
This Air Canada deal was found by Cheapflights users on 11/4. 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 12/166:05 amSEA - OPO
2 stops23h 00mAir Canada
Mon 1/66:55 amOPO - SEA
2 stops22h 35mAir Canada
Deal found 11/4$1,507
This Aeromexico deal was found by Cheapflights users on 11/4. 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.
Mon 12/1612:34 pmSEA - OPO
1 stop14h 16mAir France
Mon 1/611:45 amOPO - SEA
1 stop31h 35mAir France
Deal found 11/4$1,868

Find flights from Washington to Porto within your budget

Customize your flight search to find flights from Washington 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 2,554,862 searches. Data last updated November 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 12/4

7:16 pm-8:40 am

2 stops53h 24m

$292

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 12/8

7:40 am-4:40 pm

2 stops25h 00m

$532

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 12/8

10:08 am-10:55 am

2 stops16h 47m

$539

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 12/8

1:25 pm-11:25 am

1 stop14h 00m

$540

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 12/2

12:59 am-10:30 am

2 stops25h 31m

$545

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 12/6

1:57 pm-4:00 pm

2 stops18h 03m

$585

SeattlePorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Fri 12/13

6:05 am-12:50 pm

2 stops22h 45m

$597

SeattlePorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Fri 12/13

2:00 pm-10:25 pm

1 stop24h 25m

$618

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 12/6

9:54 am-3:10 pm

3 stops45h 16m

$638

SeattlePorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Thu 12/5

2:35 pm-10:10 am

3 stops35h 35m

$393

Flights are sorted by cheapest first

Deals found on 11/4

Showing 1-10 of 36 results
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Best time to book a flight from Washington to Porto

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

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

What is the cheapest month to book a flight from State of Washington to Porto?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Porto (average of $517). Flying from State of Washington to Porto in June is currently the most expensive (average of $993). 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 WA to OPO?

Find hourly flight availability from Washington 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 November 5, 2024.

When flying from State of Washington to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 November 5, 2024.
See what other customers who have flown with Scandinavian Airlines, Turkish Airlines and Delta from Washington to Porto have to say. 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
8,830 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

Delta
8.0
Very good
8,830 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

SWISS
7.6
Good
1,646 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

Air France
7.4
Good
1,530 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

United Airlines
7.4
Good
9,215 reviews
Delta
8.0
Very good
8,830 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

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 Washington 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?

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

  • Can I find flights from State of Washington to Porto for under $700 on Cheapflights?

    Yes, there are multiple flights from State of Washington to Porto for under $700. The cheapest flight booked recently is on KLM for just $669, but on average you can expect to pay $1,011.

  • What are the cheapest airlines to fly from State of Washington to Porto one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as $532. Users have also found prices from $539 and $540 on Air France and KLM, respectively.

  • What does SEA to OPO mean?

    SEA and OPO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. SEA to OPO refers to a flight route from Seattle/Tacoma Intl Airport to Porto Airport. Wenatchee Pangborn Field Airport (EAT), Spokane Airport (GEG), Pasco Tri Cities Airport (PSC), Everett Paine Field Airport (PAE), Bellingham Airport (BLI) are other airports near this flight route and their unique identifiers/IATA codes.

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

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

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

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

  • How can I find direct flights from Washington to Porto?

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

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

    Yes. Cheapflights offers flight deals from Washington 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 Washington to Porto that allow pets onboard?

    Many airlines flying from Washington 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 Washington to Porto?

    Yes, you can often find last-minute deals on Washington 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 State of Washington to Porto flight deals updated?

    The State of Washington to Porto flight deals you see on this page were last updated on 11/5.

  • What is the cheapest month to book a flight from State of Washington to Porto?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Porto (average of $517). Flying from State of Washington to Porto in June is currently the most expensive (average of $993). 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 Washington to Porto

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Top 7 airlines flying from Washington to Porto

Discover the top 7 airlines that operate flights from Washington 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 2,554,862 searches. Data last updated November 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$531Average$1,130FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$544Average$771FlexibilityNo cancel feeOn-time71%
DeltaCheapest$635Average$1,069FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$649Average$1,130FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$769Average$1,185FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$788Average$973FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$851Average$1,283FlexibilityNo cancel feeOn-time69%
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