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$306+ Cheap flights from Seattle (SEA) 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OPO
Jul 31 — Aug 71
From?
To?
Wed 7/31
Wed 8/7
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Porto are usually found in February or November, booked 85 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Seattle to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 July 26, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$604
(Air Canada)

One-way from

$306
(Kiwi.com)
High demand for flights, 29% potential price rise
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Best time to find cheap flights, 34% potential price drop
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From Seattle/Tacoma Intl to Porto
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One-way flight from Seattle/Tacoma Intl to Porto
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What is the cheapest day to fly round-trip from Seattle to Porto?

Flights from Seattle to Porto 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 Porto.

How far in advance should I book a flight from Seattle to Porto?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 17 days in advance, which can save you up to 52% on flights from Seattle to Porto compared to booking the week you need them. Waiting 17 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 $984. For sooner than that we have options available in the next 3 days from $2,488.

What is the cheapest month to fly from Seattle to Porto?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Porto. Flights to Porto from Seattle in February are about $1,131 on average during February, but can be found for as low as $659.

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

It’s optimal to fly from Seattle to Porto in the evening. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight at noon.

Cheap Seattle to Porto flights in July & August 2024

Find cheap flight options from Seattle to Porto specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 26, 2024.
Listed are some of the best fares we've found on flights departing from Seattle to Porto in 2024. For more flight deals, be sure to check back very soon.
This Delta deal was found by Cheapflights users on 7/24. 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 8/216:00 amSEA - OPO
2 stops20h 40mDelta
Wed 8/286:20 amOPO - SEA
2 stops20h 08mDelta
Deal found 7/24$713
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/277:40 amSEA - OPO
3 stops30h 35mMultiple Airlines
Thu 9/126:35 amOPO - SEA
2 stops22h 40mMultiple Airlines
Deal found 7/24$745
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/277:40 amSEA - OPO
3 stops30h 35mMultiple Airlines
Wed 9/49:55 pmOPO - SEA
3 stops31h 20mMultiple Airlines
Deal found 7/24$818
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/215:45 amSEA - OPO
2 stops32h 05mMultiple Airlines
Wed 8/287:00 amOPO - SEA
3 stops35h 09mMultiple Airlines
Deal found 7/24$824
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/275:45 amSEA - OPO
3 stops33h 40mMultiple Airlines
Thu 9/127:25 amOPO - SEA
3 stops38h 10mMultiple Airlines
Deal found 7/24$825
This Delta deal was found by Cheapflights users on 7/24. 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 8/216:00 amSEA - OPO
2 stops20h 40mDelta
Wed 8/286:20 amOPO - SEA
1 stop18h 15mDelta
Deal found 7/24$833
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/277:00 amSEA - OPO
2 stops30h 15mMultiple Airlines
Wed 9/46:30 pmOPO - SEA
3 stops33h 51mMultiple Airlines
Deal found 7/24$864
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/215:45 amSEA - OPO
3 stops44h 45mMultiple Airlines
Wed 8/287:00 amOPO - SEA
3 stops35h 09mMultiple Airlines
Deal found 7/24$865
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/271:10 pmSEA - OPO
2 stops20h 05mMultiple Airlines
Thu 9/126:20 amOPO - SEA
2 stops20h 06mMultiple Airlines
Deal found 7/24$929

Seattle to Porto 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Porto in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
Listed are some of the best fares we've found on flights departing from Seattle to Porto in 2024. For more flight deals, be sure to check back very soon.
This Air Canada deal was found by Cheapflights users on 7/24. 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.
Wed 11/1310:35 amSEA - OPO
2 stops27h 50mMultiple Airlines
Fri 11/226:00 amOPO - SEA
2 stops23h 20mMultiple Airlines
Deal found 7/24$604
This Air Canada deal was found by Cheapflights users on 7/24. 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 11/116:15 amSEA - OPO
2 stops22h 35mAir Canada
Fri 11/226:00 amOPO - SEA
2 stops23h 20mAir Canada
Deal found 7/24$609
This Air Canada deal was found by Cheapflights users on 7/24. 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.
Tue 11/126:15 amSEA - OPO
2 stops21h 25mMultiple Airlines
Thu 11/216:00 amOPO - SEA
2 stops23h 20mMultiple Airlines
Deal found 7/24$610
This FlightHub deal was found by Cheapflights users on 7/24. 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.
Wed 10/307:10 amSEA - OPO
2 stops25h 05mLufthansa
Fri 11/86:05 amOPO - SEA
1 stop15h 15mLufthansa
Deal found 7/24$614
This Delta deal was found by Cheapflights users on 7/24. 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 11/111:05 pmSEA - OPO
1 stop13h 45mDelta
Thu 11/2111:15 amOPO - SEA
1 stop32h 25mDelta
Deal found 7/24$615
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Mon 11/112:00 pmSEA - OPO
1 stop17h 25mUnited Airlines
Tue 11/196:00 amOPO - SEA
2 stops24h 37mUnited Airlines
Deal found 7/24$619
This Delta deal was found by Cheapflights users on 7/24. 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 11/127:20 amSEA - OPO
2 stops19h 30mDelta
Thu 11/215:00 amOPO - SEA
1 stop14h 40mDelta
Deal found 7/24$620
This Expedia deal was found by Cheapflights users on 7/25. 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.
Sun 11/106:15 amSEA - OPO
2 stops25h 00mMultiple Airlines
Wed 11/2012:05 pmOPO - SEA
2 stops42h 41mMultiple Airlines
Deal found 7/25$623
This United deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/308:05 amSEA - OPO
2 stops24h 10mUnited Airlines
Fri 11/812:30 pmOPO - SEA
2 stops19h 15mUnited Airlines
Deal found 7/25$624

Seattle to Porto flights leaving soon

Find last-minute flight options from Seattle 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 2,752,877 searches. Data last updated July 26, 2024.
Consider one of these great deals we found on last-minute flights from Seattle to Porto. To prevent any unwanted surprises, users should verify their flight info before booking.
This Air France deal was found by Cheapflights users on 7/24. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/11:35 pmSEA - OPO
1 stop20h 40mAir France
Tue 8/69:15 amOPO - SEA
1 stop16h 25mAir France
Deal found 7/24$1,223
This KAYAK deal was found by Cheapflights users on 7/24. 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.
Sun 8/41:05 pmSEA - OPO
2 stops38h 15mMultiple Airlines
Sun 8/116:15 amOPO - SEA
1 stop18h 44mMultiple Airlines
Deal found 7/24$1,255
This KAYAK deal was found by Cheapflights users on 7/24. 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.
Sun 8/46:50 pmSEA - OPO
1 stop20h 30mLufthansa
Sun 8/116:15 amOPO - SEA
1 stop18h 44mLufthansa
Deal found 7/24$1,257
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/16:20 amSEA - OPO
2 stops21h 00mUnited Airlines
Tue 8/612:35 pmOPO - SEA
2 stops31h 42mUnited Airlines
Deal found 7/24$1,260
This KAYAK deal was found by Cheapflights users on 7/24. 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.
Sun 8/41:05 pmSEA - OPO
2 stops38h 15mMultiple Airlines
Sun 8/116:00 amOPO - SEA
2 stops18h 59mMultiple Airlines
Deal found 7/24$1,283
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/16:20 amSEA - OPO
2 stops21h 00mUnited Airlines
Tue 8/612:35 pmOPO - SEA
1 stop16h 46mUnited Airlines
Deal found 7/24$1,328
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/17:00 amSEA - OPO
2 stops30h 15mMultiple Airlines
Tue 8/61:30 pmOPO - SEA
3 stops35h 51mMultiple Airlines
Deal found 7/24$1,334
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/17:00 amSEA - OPO
3 stops39h 50mMultiple Airlines
Tue 8/612:35 pmOPO - SEA
3 stops32h 21mMultiple Airlines
Deal found 7/24$1,412

One-way flights to Porto from Seattle

Search for one-way flight options from Seattle 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 2,752,877 searches. Data last updated July 26, 2024.
Users in need of a one-way flight from Seattle to Porto can choose from these deals. Those needing a return flight from Seattle to Porto can use the search form above.
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Tue 8/277:00 amSEA - OPO
3 stops50h 25mMultiple Airlines
Deal found 7/25$306
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Fri 8/237:00 amSEA - OPO
2 stops40h 15mMultiple Airlines
Deal found 7/25$320
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Sun 8/256:55 pmSEA - OPO
3 stops42h 35mMultiple Airlines
Deal found 7/25$351
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Tue 8/67:00 amSEA - OPO
3 stops41h 25mMultiple Airlines
Deal found 7/24$362
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Tue 8/67:00 amSEA - OPO
2 stops42h 15mMultiple Airlines
Deal found 7/24$365
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Fri 8/237:00 amSEA - OPO
3 stops29h 25mMultiple Airlines
Deal found 7/25$366
This Combigo deal was found by Cheapflights users on 7/24. 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 Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2711:00 pmSEA - OPO
2 stops34h 25mMultiple Airlines
Deal found 7/24$382
This Combigo deal was found by Cheapflights users on 7/25. 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 Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2711:00 pmSEA - OPO
2 stops34h 25mMultiple Airlines
Deal found 7/25$388
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Sun 8/2511:00 pmSEA - OPO
2 stops52h 50mMultiple Airlines
Deal found 7/25$401

Find flights from Seattle to Porto within your budget

Customize your flight search to find flights from Seattle 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 2,752,877 searches. Data last updated July 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$604 - $899

Route

Depart

Return

Price

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Wed 11/13

2 stops25h 30m

Porto

Fri 11/22

2 stops23h 20m

$604

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Wed 10/30

1 stop17h 15m

Porto

Fri 11/8

1 stop15h 15m

$610

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Wed 10/30

1 stop17h 15m

Porto

Fri 11/8

2 stops19h 15m

$619

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Sun 11/10

1 stop13h 45m

Porto

Wed 11/20

2 stops22h 23m

$626

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Tue 10/22

2 stops38h 15m

Porto

Thu 10/31

2 stops35h 14m

$650

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Wed 11/6

2 stops20h 40m

Porto

Sun 11/17

2 stops23h 20m

$654

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Sun 10/20

2 stops21h 48m

Porto

Sat 11/2

2 stops23h 36m

$883

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Fri 9/20

2 stops41h 15m

Porto

Mon 10/14

1 stop27h 00m

$893

Seattle/Tacoma IntlPorto

SEA - OPO

SEAOPO

Seattle/Tacoma Intl

Sat 9/21

1 stop17h 40m

Porto

Sat 9/28

1 stop21h 25m

$899

Flights are sorted by cheapest first

Deals found on 7/25

How far ahead should I book a flight from Seattle to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Porto. Price data was last updated on July 23, 2024.
Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Porto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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What is the cheapest day to fly from Seattle to Porto?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Porto. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Porto flight should consider departing on Saturday mornings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from Seattle to Porto

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

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 July 26, 2024.
To help decide which airline to fly from Seattle to Porto, see what other customers have to say about Air Canada, Air France and Turkish Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Delta
8.0
Very good
9,630 reviews
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

KLM
7.9
Good
1,417 reviews
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

SWISS
7.7
Good
1,799 reviews
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Air France
7.5
Good
1,622 reviews
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Turkish Airlines
7.4
Good
3,762 reviews
Delta
8.0
Very good
9,630 reviews

Overall

8.0

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Related info for your journey

Find useful and relevant information for your journey from Seattle to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Seattle to Porto for under $700 on Cheapflights?

    Yes, there are multiple flights from Seattle to Porto for under $700. The cheapest flight booked recently is on Multiple Airlines for just $604, but on average you can expect to pay $649.

  • Are there last-minute flights available from Seattle to Porto for under $1,300?

    There are currently 8+ open flights from Seattle to Porto within the next 7 days for less than $1,300.

  • What are the cheapest airlines flying from Seattle to Porto round-trip?

    Our cheapest airline available from Seattle to Porto is Lufthansa. Our recent data shows that you can find tickets from as low as $610 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $619 and $626 round-trip. Users have found that Lufthansa is 46% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Porto one-way?

    $427 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 Delta and KLM, with prices starting from $494 and $567, respectively.

  • What does SEA to OPO mean?

    This is defined as Seattle/Tacoma Intl Airport (SEA) and Porto Airport (OPO). Codes like Porto Airport are often used to just call airports uniquely.

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

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

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

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

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

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

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

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

    Many airlines flying from Seattle 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 Seattle to Porto?

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

    The Seattle to Porto flight deals you see on this page were last updated on 7/25.

  • What are the most popular airlines that fly from Seattle to Porto?

    When booking a flight from Seattle to Porto, you may want to consider flying on American Airlines, Air France or British Airways as they are the most popular for this route.

  • What is the cheapest month to book a flight from Seattle to Porto?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Porto (average of $517). Flying from Seattle to Porto in June is currently the most expensive (average of $975). 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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Top 9 airlines flying from Seattle to Porto

Discover the top 9 airlines that operate flights from Seattle 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 2,752,877 searches. Data last updated July 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$544Average$714FlexibilityNo cancel feeOn-time71%
IberiaCheapest$641Average$1,208FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$668Average$1,086FlexibilityNo cancel feeOn-time70%
DeltaCheapest$685Average$1,113FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$758Average$1,138FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$798Average$1,258FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$902Average$1,312FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$914Average$976FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$1,116Average$1,562FlexibilityNo cancel feeOn-time77%
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