Popular in | June |
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Cheapest in | February |
Round-trip from | $604 (Air Canada) |
One-way from | $306 (Kiwi.com) |
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.
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.
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.
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.
Fly from
Fly to
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
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Wed 10/30
1 stop17h 15m
Porto
Fri 11/8
1 stop15h 15m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Wed 10/30
1 stop17h 15m
Porto
Fri 11/8
2 stops19h 15m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Sun 11/10
1 stop13h 45m
Porto
Wed 11/20
2 stops22h 23m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Tue 10/22
2 stops38h 15m
Porto
Thu 10/31
2 stops35h 14m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Wed 11/6
2 stops20h 40m
Porto
Sun 11/17
2 stops23h 20m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Sun 10/20
2 stops21h 48m
Porto
Sat 11/2
2 stops23h 36m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Fri 9/20
2 stops41h 15m
Porto
Mon 10/14
1 stop27h 00m
Seattle/Tacoma IntlPorto
SEA - OPO
SEAOPO
Seattle/Tacoma Intl
Sat 9/21
1 stop17h 40m
Porto
Sat 9/28
1 stop21h 25m
OPO Temperature | 48.2 - 68 °F |
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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).
Overall
Entertainment
Comfort
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Reviews
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
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
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
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
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
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
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
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
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
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
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
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Cheapest$641 | Average$1,208 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$668 | Average$1,086 | FlexibilityNo cancel fee | On-time70% | |
Cheapest$685 | Average$1,113 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$758 | Average$1,138 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$798 | Average$1,258 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$902 | Average$1,312 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$914 | Average$976 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$1,116 | Average$1,562 | FlexibilityNo cancel fee | On-time77% |