Philadelphia to Seattle nonstop
Yes: American, Alaska and Delta fly direct from Philadelphia (PHL) to Seattle (SEA) about 6 times a day, year-round.
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Philadelphia to Seattle in numbers
Measured from US DOT filings, not estimated from distance.
- Distance and flight time
- 2,379 miles nonstop, about 5 hr 25 min gate to gate. Flight time is an estimate from the great-circle distance; the filings carry distance, not scheduled elapsed time.
- Seasonality
- Flew every month of the last year: busiest in July 2026 (40 flights a week), quietest in February 2026 (13 flights a week).
- Sep 2025: 29 flights a week
- Oct 2025: 27 flights a week
- Nov 2025: 20 flights a week
- Dec 2025: 21 flights a week
- Jan 2026: 14 flights a week
- Feb 2026: 13 flights a week
- Mar 2026: 17 flights a week
- Apr 2026: 26 flights a week
- May 2026: 35 flights a week
- Jun 2026: 40 flights a week
- Jul 2026: 40 flights a week
- Aug 2026: 40 flights a week
Flights a week by month, Sep 2025 to Aug 2026, from US DOT on-time filings. - Who operates the flights
- American 48%, Alaska 39%, Delta 13% of departures, counted across the August 2026 and February 2026 US DOT on-time filings.
- Fares
- Half of the 2,983 tickets in the US DOT fare survey for Q2 2025 sold between $200 and $425 one way, median $300. The survey runs a couple of quarters behind, so read it as the shape of the route's pricing rather than today's quote.
- Jul to Sep (Q3 2024): median $300 one way, middle half $225 to $450, 3,530 tickets
- Oct to Dec (Q4 2024): median $275 one way, middle half $200 to $450, 2,349 tickets
- Jan to Mar (Q1 2025): median $250 one way, middle half $175 to $425, 1,256 tickets
- Apr to Jun (Q2 2025): median $300 one way, middle half $200 to $425, 2,983 tickets
Jan to Mar trips were the cheapest (median $250 one way) and Jul to Sep and Apr to Jun trips cost the most (median $300), in the DOT ticket survey for Q3 2024 to Q2 2025. Bars show the middle half of one-way fares; the mark is the median.
Flying the other way? Seattle to Philadelphia nonstop.
Other airports near Philadelphia with nonstops to Seattle
Within about 100 miles of Philadelphia International Airport
Also nonstop from Philadelphia (PHL)
Busiest other routes out of the same airport
- Atlanta (ATL) about 17 times a day
- Chicago (ORD) about 16 times a day
- Orlando (MCO) about 14 times a day
- Boston (BOS) about 14 times a day
- Denver (DEN) about 10 times a day
- Fort Lauderdale (FLL) about 10 times a day
- Detroit (DTW) about 9 times a day
- Charlotte (CLT) about 9 times a day
Staying in Seattle?
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