Cheap flights from Seattle (SEA) to Porto (OPO) from $362
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 10/8. 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.
The best prices from Seattle/Tacoma Intl to Porto are usually found in February or November, booked 17 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 May 16, 2024.
Popular in | June |
|---|---|
Cheapest in | February |
Average price | $1,338 |
Round-trip from | $523 |
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 Saturday. 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 $2,570.
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 $1,150 on average during February, but can be found for as low as $693.
When is the cheapest time to fly from Seattle to Porto (SEA - OPO)?
It’s optimal to fly from Seattle to Porto in the morning. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the evening.
Cheap United Airlines flights from Seattle to Porto
Explore cheap flight options specifically provided by United Airlines for the route between Seattle 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 2,637,452 searches. Data last updated May 16, 2024.
Consider these cheap United Airlines flights we've found departing from Seattle to Porto. Be sure to come back soon if the deals available don't appeal to you at this time.
Cheap KLM flights from Seattle to Porto
Explore cheap flight options specifically provided by KLM for the route between Seattle 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 2,637,452 searches. Data last updated May 16, 2024.
Some of the best deals we've found on KLM flights traveling from Seattle to Porto. Ensure the flight price, dates, time, and airline match your criteria before you book.
Cheap Seattle to Porto flights in May & June 2024
Find cheap flight options from Seattle 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 2,637,452 searches. Prices were last updated on May 16, 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.
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 2,637,452 searches. Data last updated May 16, 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.
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 2,637,452 searches. Data last updated May 16, 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.
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 2,637,452 searches. Data last updated May 16, 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.
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 2,637,452 searches. Data last updated May 16, 2024.
Fly from
Fly to
Budget
$667 - $1,066
Route
Depart
Return
Price
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Wed 10/30
2 stops26h 05m
Porto
Wed 11/6
2 stops47h 08m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Sat 11/2
2 stops28h 45m
Porto
Tue 11/12
2 stops22h 52m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Wed 10/30
1 stop20h 55m
Porto
Wed 11/6
1 stop26h 05m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Sat 11/2
2 stops38h 28m
Porto
Tue 11/12
1 stop27h 25m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Sun 10/13
1 stop31h 35m
Porto
Mon 10/28
1 stop32h 40m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Wed 8/14
2 stops38h 05m
Porto
Mon 9/2
2 stops34h 44m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Mon 7/15
2 stops28h 20m
Porto
Thu 7/25
2 stops24h 05m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Mon 6/24
2 stops20h 00m
Porto
Thu 7/18
2 stops22h 44m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Wed 6/5
1 stop17h 55m
Porto
Sun 6/23
1 stop27h 00m
When is the best time to 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 May 10, 2024.
Booking 16 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.
When is the cheapest time 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 May 12, 2024.
Average price of flights to Porto by month
Plan your trip from Seattle to Porto by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Porto is currently $390 while a round-trip flight costs $872. Price data was last updated on May 12, 2024.
Currently, January is the cheapest month in which you can book a flight from Seattle to Porto (average of $523). Flying from Seattle to Porto in June is currently the most expensive (average of $1,011). 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.
January
$523
February
$580
March
$600
April
$742
May
$879
June
$1,011
July
$980
August
$855
September
$766
October
$691
November
$560
December
$645
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 16, 2024.
To help decide which airline to fly from Seattle to Porto, see what other customers have to say about United Airlines, KLM and Lufthansa. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Crew
Overall
Comfort
Boarding
Entertainment
Reviews
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.
Food
Crew
Overall
Comfort
Boarding
Entertainment
Reviews
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.
Food
Crew
Overall
Comfort
Boarding
Entertainment
Reviews
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.
Food
Crew
Overall
Comfort
Boarding
Entertainment
Reviews
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.
Food
Crew
Overall
Comfort
Boarding
Entertainment
Reviews
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.
Food
Crew
Overall
Comfort
Boarding
Entertainment
Reviews
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 Seattle to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to PortoSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Seattle to Porto
Discover the top 8 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 2,637,452 searches. Data last updated May 16, 2024.
Search flights from Seattle to Porto by cabin class
Find flights from Seattle to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Seattle to Porto?
Deals for Seattle to Porto flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Seattle to Porto?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Porto from Seattle.
Can Cheapflights find flights from Seattle to Porto with no change fees?
Yes, we can. To see specific flights from Seattle to Porto 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 Seattle to Porto become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Porto from Seattle today and book when prices fit your budget.