Philadelphia to Seattle Flights
Everything you need to know about the PHL → SEA domestic route — flight time, airlines, fares, and booking tips. Track your flight in real time with TripTrack.
✈️ Route Overview
Key facts for the Philadelphia to Seattle route
🛫 Airlines on This Route
Carriers operating PHL → SEA flights
| Airline | Notes |
|---|---|
| Delta | SkyMiles frequent flyer program |
| American Airlines | AAdvantage frequent flyer program |
| United | MileagePlus frequent flyer program |
| Southwest | Rapid Rewards — bags fly free |
| Alaska Airlines | Mileage Plan — generous earning rates |
| JetBlue | TrueBlue — free snacks, above-average legroom |
💡 Booking Tips
How to get the best deal on Philadelphia to Seattle flights
Best Days to Fly
Midweek departures (Tuesday–Thursday) are generally least expensive
Fare Range
$130-$670 round trip. Book 3–6 weeks in advance for domestic routes, 2–3 months for international.
Red-Eye Flights
✓ Available
Overnight flights on this route can save on hotel costs and maximize your time at the destination.
Track Your Flight
Once booked, TripTrack automatically imports your flight from your confirmation email. Real-time gate changes and delay alerts — no manual entry needed.
🧳 Travel Tips for This Route
Practical advice from frequent travelers on the PHL → SEA route
- 1 Delta One and United Polaris offer lie-flat seats on some transcontinental routes.
- 2 JetBlue Mint is a premium option on select transcontinental routes.
🏢 Airport Guides
Full terminal, transit, and traveler info for both airports
Track Your PHL → SEA Flight — Automatically
TripTrack monitors your flight in real time — gate changes, delays, and departure updates sent to your phone the moment they happen. Connect your Gmail once and your trips appear automatically. No manual entry.
Frequently Asked Questions — Philadelphia to Seattle Flights
How long is the flight from Philadelphia to Seattle?
The average flight time from Philadelphia (PHL) to Seattle (SEA) is 5h 10m. This is an estimate including taxi, climb, and descent time — actual flight time may vary based on winds and routing.
Which airlines fly from Philadelphia to Seattle?
Airlines operating the PHL to SEA route include Delta, American Airlines, United and 3 more. Check each airline's website for current schedules and availability.
How far is Philadelphia from Seattle?
The great-circle distance from Philadelphia to Seattle is 2,372 miles (3,818 km). This is the straight-line distance — actual flight paths may be slightly longer.
What are the cheapest days to fly from Philadelphia to Seattle?
Midweek departures (Tuesday–Thursday) are generally least expensive. Fares on this route typically range $130-$670 round trip.
Is there a time zone change flying from Philadelphia to Seattle?
Yes — there is a -3 hours when flying from Philadelphia to Seattle. TripTrack automatically shows local times for both your departure and arrival airports.
Are there red-eye flights from Philadelphia to Seattle?
Yes, overnight (red-eye) flights are available on the PHL to SEA route. These can be a great way to save on hotel costs and maximize time at your destination.
How can I track my Philadelphia to Seattle flight in real time?
TripTrack automatically tracks your PHL to SEA flight — showing real-time gate changes, delays, and departure updates. Connect your Gmail once and your booking confirmation is imported automatically. Available free on iOS and Android.