Flights from Seattle, WA to Porto Alegre, Brazil
Compare prices from 900+ airlines and find the best deals on flights from SEA to POA.*Prices shown are estimated based on historical data.
Seattle, WA to Porto Alegre, Brazil
Round-trip flights from SEA to POA typically cost $714-$892 USD. Prices vary by season, demand, and how far in advance you book. The lowest fares are usually found 6-8 weeks before departure for domestic routes.
Non-stop flights from SEA to POA take approximately 12h 57m. Actual flight times vary based on weather, air traffic, and aircraft type. Consider arriving at the airport 2 hours before domestic departures.
Airlines operating SEA to POA include Air France, Japan Airlines, American Airlines. Each airline offers different fare classes, baggage policies, and loyalty programs. Compare options to find the best value for your travel needs.
The cheapest day to fly SEA to POA is typically Tuesday. Mid-week flights are 10-20% cheaper than weekend departures. For best prices, book 6-8 weeks before your trip. Avoid booking less than 2 weeks out when fares spike.
Fares range from $714 to $1338 depending on dates, class, and airline.
Prices based on 500 searches. Updated hourly.
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About Flights from Seattle, WA to Porto Alegre, Brazil
Looking for cheap flights from Seattle, WA (SEA) to Porto Alegre, Brazil (POA)? You've come to the right place. Fly2Any compares prices from over 900 airlines to help you find the best deals on this popular route.
Flight Information
Flights from SEA to POA typically take around 12h 57m. The flight covers a distance of 6233 miles. Multiple airlines operate this route, including Air France, Japan Airlines, American Airlines.
Best Time to Book
For the best prices on SEA to POA flights, we recommend booking 2-3 months in advance. Prices tend to be lowest for mid-week departures (Tuesday and Wednesday). Use our Price Calendar feature to compare prices across different dates and find the cheapest options.
Price data last updated: April 2026
Airlines on This Route
Several major airlines serve the Seattle, WA to Porto Alegre, Brazil route, including:
- Air France (AF)
- Japan Airlines (JL)
- American Airlines (AA)
Frequently Asked Questions - SEA to POA Flights
How long is the flight from Seattle, WA to Porto Alegre, Brazil?
Direct flights from Seattle, WA (SEA) to Porto Alegre, Brazil (POA) take approximately 12h 57m. Connecting flights may add 2-4 hours depending on layover location. For the fastest journey, look for nonstop flights which are typically available on this popular route.
When is the best time to book SEA to POA flights?
For the best prices on SEA to POA flights, book 6-8 weeks in advance for domestic routes or 2-4 months ahead for international travel. Domestic flights are typically 20-40% cheaper in off-peak months. Peak season months (July, August) have higher prices, while January and February typically offer the best deals.
What are the cheapest days to fly from Seattle, WA to Porto Alegre, Brazil?
Tuesday and Wednesday departures are typically 15-25% cheaper than weekend flights on the SEA to POA route. Saturday is usually the most expensive day to fly. For additional savings, consider red-eye flights or early morning departures, which often have lower fares and less crowded airports.
Which airlines fly from SEA to POA?
Major carriers on this route include Alaska Airlines, Delta, and other domestic and international airlines. Seattle-Tacoma is Alaska Airlines main hub with strong connections to West Coast and Asian destinations.
What should I know about flying from Seattle, WA airport?
Seattle-Tacoma is Alaska Airlines main hub with strong connections to West Coast and Asian destinations. Book flights that depart mid-morning or early afternoon for the smoothest experience - these times typically have shorter security lines and fewer delays.
What is the cheapest month to fly from Seattle, WA to Porto Alegre, Brazil?
The cheapest months to fly from SEA to POA are typically January, February, September. Domestic flights are typically 20-40% cheaper in off-peak months. Avoid peak travel periods like July and August when prices can be 30-50% higher. Use Fly2Any's price alerts to get notified when fares drop.
What is the baggage allowance for SEA to POA flights?
Baggage allowances vary by airline and fare class. Most full-service carriers include one checked bag (up to 50 lbs) on this route. Budget carriers may charge $25-$60 for checked bags. All airlines allow one personal item free. Compare total costs including baggage fees when booking to get the best deal.
Are there direct flights from Seattle, WA to Porto Alegre, Brazil?
Yes, several airlines offer nonstop flights from SEA to POA. Direct flights take approximately 12h 57m. If you're flexible with your schedule, connecting flights through major hubs like ATL or ORD may offer lower prices.
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