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Cheap flights from Philadelphia to Seattle

PHL — SEA
25 Nov — 2 Dez1
1 adult

The best prices from Philadelphia to Seattle/Tacoma Intl are usually found in February or April, booked 34 days in advance, depart on a Tuesday or Monday and return on a Saturday

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 November 2024.

Round-trip from

C$ 379

Popular in

July

Cheapest in

February

Average price

C$ 609
From Philadelphia to Seattle/Tacoma Intl
High demand for flights, 19% potential price rise
Best time to find cheap flights, 21% potential price drop
Average for round-trip flights in November 2024

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 15 November 2024.

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, August is the cheapest month in which you can book a flight from Philadelphia to Seattle (average of C$ 271). Flying from Philadelphia to Seattle in March is currently the most expensive (average of C$ 418). 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 November 2024.

It’s optimal to fly from Philadelphia to Seattle in the afternoon. By choosing this option you can save up to 3% on the cost of your flight, compared to a flight in the morning.

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.
  • How popular is this Philadelphia to Seattle flight route?

  • What are the most reliable airlines from Philadelphia to Seattle?

    The top 3 most reliable airlines when flying from Philadelphia to Seattle are Air Tahiti Nui (93%), Hawaiian Airlines (81%) and Alaska Airlines (77%).

  • Can I find deals for flights from Philadelphia to Seattle that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Philadelphia to Seattle (average of C$ 271). Flying from Philadelphia to Seattle in March is currently the most expensive (average of C$ 418). 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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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 645,034 searches. Data last updated 20 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 279AverageC$ 595FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapestC$ 416AverageC$ 582FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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 Philadelphia to Seattle?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Philadelphia today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Seattle?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Philadelphia to Seattle for you. Better yet — we are completely free to use.

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.

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