Seattle: cheap flights and the best time to go
Waterfront markets and mountain day trips. Washington · Cities, National parks & outdoors
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Cheapest round trip
Safety level
U.S. U.S. destination: no State Department travel advisory
The State Department's travel advisories
Levels: 1 Exercise normal precautions · 2 Exercise increased caution · 3 Reconsider travel · 4 Do not travel. Read the advisory before you book; it can change. Checked 2026-10-07.
Best time to go
For the weather: May, June, July (highs of 62–82°F, not too much rain). With fares from your airport, the best months weigh weather 60% and price 40%.
| Month | High | Low | Rain | Cheapest round trip from JFK |
|---|---|---|---|---|
| January | 48°F | 37°F | 5.2 in | … |
| February | 50°F | 37°F | 3.6 in | … |
| March | 54°F | 40°F | 4.0 in | … |
| April | 59°F | 43°F | 2.6 in | … |
| May (a best month) | 66°F | 49°F | 1.9 in | … |
| June (a best month) | 71°F | 54°F | 1.2 in | … |
| July (a best month) | 77°F | 58°F | 0.4 in | … |
| August | 77°F | 59°F | 0.7 in | … |
| September | 71°F | 54°F | 1.4 in | … |
| October | 61°F | 47°F | 3.5 in | … |
| November | 52°F | 40°F | 5.7 in | … |
| December | 47°F | 37°F | 5.4 in | … |
Typical daily high and low and total rain, 1991–2020: NOAA NCEI GHCN-Daily, station SEATTLE BOEING FLD (7 km away). ★ = the best three months. Fares are the cheapest found for trips leaving that month in the next year.