Cheap flights from Philadelphia to Seattle
The best prices from Philadelphia to Seattle/Tacoma Intl are usually found in April or March, booked 34 days in advance, depart on a Tuesday or Monday and return on a Thursday
Cheap flight deals from Philadelphia to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Seattle (SEA). 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 20 February 2025.
Popular in | July |
|---|---|
Cheapest in | April |
Average price | C$ 591 |
Best time to book a flight from Philadelphia to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Philadelphia with our price prediction graph.
Travel insights for flights from Philadelphia to Seattle
Get recent, data-driven insights about flights from Philadelphia to Seattle including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Philadelphia to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Seattle. Price data was last updated on 14 February 2025.
To ensure you get the cheapest price possible for a flight from Philadelphia to Seattle, you should look to book at least 34 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Philadelphia to Seattle?
Currently, January is the cheapest month in which you can book a flight from Philadelphia to Seattle (average of C$ 262). Flying from Philadelphia to Seattle in April is currently the most expensive (average of C$ 382). 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 PHL to SEA?
Find hourly flight availability from Philadelphia to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 February 2025.
It’s optimal to fly from Philadelphia to Seattle in the afternoon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.
Weekly flight availability from Philadelphia to Seattle
Explore weekly flight availability from Philadelphia to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 20 February 2025.
The most flights from PHL to SEA are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).
Rainfall in Seattle by month
Plan your trip to Seattle by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.
Temperature in Seattle by month
Plan your trip to Seattle by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Philadelphia?
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Alternative routes for Philadelphia to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Philadelphia to Seattle
Discover the top 2 airlines that operate flights from Philadelphia to Seattle. 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 629,999 searches. Data last updated 20 February 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Philadelphia to Seattle?
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Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Seattle?
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Can Cheapflights find flights from Philadelphia to Seattle with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Philadelphia to Seattle flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Philadelphia to Seattle become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Philadelphia today and book when prices fit your budget.