Cheap flights from Philadelphia to Walla Walla (PHL - ALW)
PHL — ALW
Nov 15 — Nov 221
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Philadelphia to Walla Walla
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Walla Walla (ALW). 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 October 16, 2025.
Most accurate provider | Expedia 2 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Walla Walla flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Philadelphia-Walla Walla flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Philadelphia-Walla Walla flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Walla Walla flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Walla Walla flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Walla Walla
Have a flexible travel schedule? Discover the best time to fly to Walla Walla from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Walla Walla
What is the cheapest month to book a flight from Philadelphia to Walla Walla?
Currently, August is the cheapest month in which you can book a flight from Philadelphia to Walla Walla (average of $207). Flying from Philadelphia to Walla Walla in November is currently the most expensive (average of $711). 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 ALW?
Find hourly flight availability from Philadelphia to Walla Walla. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.
One of the essential ways to save on airfare from Philadelphia to Walla Walla is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 82% on airfare.