Routes/Philadelphia, PA to Seattle, WA
Philadelphia, PA to Seattle, WA
Average one-way fare in 2026 Q1: $321 · 2379 nonstop miles · 417 passengers per day.
2026 Q1 fare$321
2025 Q1 fare$332
Change−$11
Passengers/day417
Distance2379 mi
The average fare a year earlier (2025 Q1) was $332. The change is $11 lower (3.2%).
The largest carrier on this route in 2026 Q1 was Alaska with 49% of passengers. The lowest-fare carrier was American with 39% of passengers, at an average fare of $298.
All routes from Philadelphia, PA · All routes from Seattle, WA
All quarters on this route
| Quarter | Passengers/day | Avg. fare | Largest carrier | Largest share | Lowest-fare carrier |
|---|---|---|---|---|---|
| 2024 Q1 | 400 | $318 | Alaska | 47% | Alaska |
| 2024 Q2 | 803 | $348 | Alaska | 48% | American |
| 2024 Q3 | 978 | $356 | American | 47% | American |
| 2024 Q4 | 656 | $351 | Alaska | 57% | American |
| 2025 Q1 | 404 | $332 | Alaska | 52% | American |
| 2025 Q2 | 820 | $343 | Alaska | 45% | American |
| 2025 Q3 | 991 | $334 | American | 53% | American |
| 2025 Q4 | 608 | $321 | Alaska | 55% | American |
| 2026 Q1 | 417 | $321 | Alaska | 49% | American |