$184 Cheap Flights from Redmond (RDM) to Philadelphia (PHL)

Popular airlines from Redmond Municipal Airport (RDM) to Philadelphia Intl. Airport (PHL)

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Find available prices by choosing your travel dates.

Cheap Flights from Redmond to Philadelphia (RDM-PHL)

Prices were available within the past 7 days and start at $184 for one-way flights and $369 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
United
Delta
Delta
American Airlines
Delta
Delta
United
Delta
Bargain Flight
Flights from Redmond (RDM) to Philadelphia (PHL)
Origin airport
Robert's Field
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$368
Distance
2343 mi

Redmond to Philadelphia Flights

The cheapest times to fly from Redmond to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Redmond to Philadelphia are during the month of September. You can find some of the cheapest flights from Redmond to Philadelphia with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Redmond to Philadelphia

Sunday is one of the best days to book for cheap flights from Redmond to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Redmond to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Redmond to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $184 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Redmond to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Redmond to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

Is it cheaper to buy a plane ticket from Robert's Field Airport (RDM) to Philadelphia Airport last minute?
When it comes to booking your flights, it pays to be prepared. While it’s possible to pick up a last-minute deal on a RDM to Philadelphia Intl. Airport (PHL) flight, prices usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days ahead. For international flights it’s between three and four months.
What airports do you fly into for Philadelphia from Redmond?
Philadelphia Intl. Airport (PHL), Atlantic City Intl. Airport (ACY) and Lehigh Valley Intl. Airport (ABE) are your options when flying from Redmond to Philadelphia. Approximately 7 mi southwest of downtown Philadelphia, Philadelphia Intl. Airport (PHL) is the city’s major gateway. Think about things like flight schedules and the distance to your hotel before deciding on an airport. Liberty Bell Center and Independence Hall are a couple of amazing attractions to put on your to-do list when you reach your destination.
Can I change the date of my flight from RDM to PHL?
You can quickly and easily make changes to your Roberts Field to Philadelphia Airport ticket by logging in to the Expedia Trips portal. But before you begin, check the conditions in your itinerary to find out what you’re able to do and what fees apply for changes. Some airlines charge a change fee per person, plus any difference in prices. However, if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also take a look at our Customer Service portal for more information and to chat with our Virtual Agent.

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