Flight Time
1,537 km
Distance
1,537 km
955 mi
Flight Time
2h 8m to 2h 40m
🇺🇸 Seattle → 🇺🇸 Los Angeles
SEA to LAX — Complete travel planning guide
Time Difference
07:31
Seattle
0h
difference
07:31
Los Angeles
Jet Lag Severity
MildModerateSevere
mild
Severity
0
Zones crossed
1d
To adjust
Adjustment Timeline
Day 1
06:00 – 23:00
Evidence-based recommendations
Each recommendation below is graded by how strongly published research supports it, with the source it comes from. Optimal timing depends on your travel direction, the number of time zones crossed and your own circadian phase, so treat the schedule as a starting point.
Protect sleep around the flight
ModerateArriving without a large sleep debt makes the first days easier, even when few time zones are involved.
CDC Yellow Book 2026Live on destination time on arrival
ModerateSleeping, eating and being active on local time gives your body consistent cues about the new day.
CDC Yellow Book 2026Drink water, go easy on alcohol
Practical adviceHydration and moderate alcohol help with travel fatigue, though they do not shift your body clock.
CDC Yellow Book 2026
How we grade evidence
- Strong
- Consistently supported by controlled circadian research and current public-health guidance.
- Moderate
- Supported by research, but effect size and best timing vary between individuals and studies.
- Practical advice
- Sensible travel habits with limited direct evidence for shifting the body clock.
This is general travel information, not medical advice. Talk to a clinician before using melatonin or sleep medication, especially if you are pregnant, take other medication or have a sleep disorder.
Flying the other way?Los Angeles → Seattle
Flying from Seattle to Los Angeles
The flight from Seattle (SEA) to Los Angeles (LAX) covers approximately 1,537 kilometers (955 miles) based on the great-circle distance between both airports. This is the shortest theoretical path over Earth's surface, though actual flight paths may be slightly longer due to air traffic routing, weather avoidance, and airspace restrictions.
The estimated non-stop flight time is 2h 8m to 2h 40m, assuming a modern jet cruising at approximately 850 km/h. This gate-to-gate estimate includes time for taxi, takeoff, climb, cruise, descent, and landing. Actual duration varies based on wind conditions — particularly the jet stream — aircraft type, and airport congestion at both ends.
Los Angeles is in the same time zone as Seattle. Travelers crossing 0 time zones within the same time zone can expect mild jet lag, with full circadian adjustment typically taking about 1 day.
With minimal or no time zone change on this route, jet lag shouldn't be a significant concern. Focus on staying hydrated and rested during the flight.
Route facts: SEA → LAX
| Detail | SEA | LAX |
|---|---|---|
| Airport | Seattle-Tacoma International (SEA) | Los Angeles International (LAX) |
| City & country | 🇺🇸 Seattle, United States | 🇺🇸 Los Angeles, United States |
| Coordinates | 47.45°N, 122.31°W | 33.94°N, 118.41°W |
| IANA time zone | America/Los_Angeles | America/Los_Angeles |
| Current UTC offset | UTC-7 | UTC-7 |
| Local time now | 07:31 | 07:31 |
Flight path, direction and distance
Leaving Seattle, the great-circle track to Los Angeles starts on an initial bearing of about 166° (SSE). The route measures 1,537 km, or 830 nautical miles — the unit airlines actually plan with. Because the shortest path on a sphere is a curve rather than a straight line on a flat map, the real track may look like it bends far north or south of the direct line you would draw on a wall map.
At this length the sector is a medium-haul flight of around 2h 24m, typically operated by narrow-body or smaller wide-body aircraft with one full meal service.
Both airports are in the same country (United States), so no border formalities apply and the schedule is usually denser, giving you more freedom to pick a departure time that suits your body clock.
Departure and arrival times: Seattle to Los Angeles
Using an estimated block time of 2h 24m and the current offset between the two cities, this table shows what local time you would land in Los Angeles for common departure times from Seattle. Use it to pick a departure that puts your arrival in daylight, which makes the first day of adjustment much easier.
| Departure (Seattle) | Arrival (Los Angeles) | Arrival day |
|---|---|---|
| 06:00 | 08:24 | Same day |
| 10:00 | 12:24 | Same day |
| 14:00 | 16:24 | Same day |
| 18:00 | 20:24 | Same day |
| 22:00 | 00:24 | Next day |
Times are estimates based on great-circle distance and current time zone offsets, not airline schedules. Always confirm with your carrier.
Daylight: Seattle vs Los Angeles
Daylight length is what actually resets your body clock, and it differs between Seattle and Los Angeles through the year. In Los Angeles the day runs from about 9.9 h to 14.4 h across the four dates below, which changes how much morning or evening light you can realistically get after landing.
| Date | Sunrise Seattle | Sunrise Los Angeles | Sunset Los Angeles | Day length vs origin |
|---|---|---|---|---|
| March equinox · March 20 | 07:14 | 06:59 | 19:05 | ±0 |
| June solstice · June 21 | 05:12 | 05:42 | 20:07 | −1.5 h |
| September equinox · September 22 | 06:54 | 06:41 | 18:52 | ±0 |
| December solstice · December 21 | 07:54 | 06:55 | 16:48 | +1.4 h |
Daylight saving on this route in 2026
Seattle (America/Los_Angeles) changes clocks on March 8 (UTC-8 → UTC-7), November 1 (UTC-7 → UTC-8).
Los Angeles (America/Los_Angeles) changes clocks on March 8 (UTC-8 → UTC-7), November 1 (UTC-7 → UTC-8).
The gap between Seattle and Los Angeles stays at 0 h all year, so your travel date does not change the time difference.