Seattle
Seattle–Tacoma International Airport
KSEACurrent Weather
Cloud Forecast Convective Activity
About Seattle–Tacoma International Airport
Seattle's marine climate brings clouds and rain but limited turbulence. Cascade Mountain waves occasionally affect eastbound flights.
Is Seattle-Tacoma Airport turbulent?
Seattle faces Pacific weather systems including powerful atmospheric rivers that dump feet of rain on the region. The Cascade Mountains to the east can create turbulence when winds are strong, though the airport itself sits in a relatively protected position. Winter storms bring heavy rain and gusty winds but rarely cause extended closures.
- Atmospheric rivers can make Pacific Northwest 'wettest place on Earth' for days
- Cascade Mountains create mechanical turbulence in strong winds
- Winter storm gusts reach 25-45 mph in the Seattle area
What is an atmospheric river?
An atmospheric river is a narrow corridor of moisture that flows from the tropical Pacific to the Pacific Northwest, bringing days of heavy rain. These systems can dump 2-6 inches on lowlands and up to 10 inches in the mountains. While not as disruptive as hurricanes, they bring sustained rain, gusty winds, and localized flooding.
When is the best time to fly from Seattle?
June through September offers the driest, most pleasant conditions. Late autumn through winter brings the most atmospheric river activity. Spring is variable but improving. Seattle's weather is rarely severe enough to close the airport, but expect rain-related delays in the wet season. Cloud ceilings can reduce visual approaches.
Upcoming Flights (next 2 hours) 77
| Flight | Destination | Departure | Aircraft | Forecast |
|---|---|---|---|---|
AS492
Alaska Airlines |
ATL | 15:59 Local | -- | Forecast |
DL489
Delta Air Lines |
RDU | 16:00 Local | -- | Forecast |
CI5393
China Airlines |
TPE | 16:00 Local | -- | Forecast |
|
LXJ661
Flexjet |
FAB | 16:00 Local | -- | Forecast |
WN3254
Southwest Airlines |
LAS | 16:00 Local | -- | Forecast |
|
L72525
Latam Cargo Colombia |
MIA | 16:05 Local | -- | Forecast |
AS686
Alaska Airlines |
SBA | 16:06 Local | -- | Forecast |
DL474
Delta Air Lines |
BOS | 16:10 Local | -- | Forecast |
AS795
Alaska Airlines |
ANC | 16:15 Local | -- | Forecast |
DL281
Delta Air Lines |
PVG | 16:15 Local | -- | Forecast |
AS744
Alaska Airlines |
PHX | 16:15 Local | -- | Forecast |
AS3438
Alaska Airlines |
BLI | 16:18 Local | -- | Forecast |
AS493
Alaska Airlines |
SBP | 16:18 Local | boeing 737-890 | Forecast |
AS614
Alaska Airlines |
SMF | 16:20 Local | -- | Forecast |
AS553
Alaska Airlines |
BZN | 16:22 Local | -- | Forecast |
AS592
Alaska Airlines |
ONT | 16:25 Local | -- | Forecast |
AS2060
Alaska Horizon |
FCA | 16:26 Local | -- | Forecast |
AS1411
Alaska Airlines |
LAX | 16:28 Local | -- | Forecast |
SY8034
Sun Country Airlines |
GEG | 16:30 Local | -- | Forecast |
AS3057
Alaska Airlines |
PSC | 16:30 Local | embraer e175lr | Forecast |
SY1638
Sun Country Airlines |
MSP | 16:30 Local | -- | Forecast |
NH117
All Nippon Airways |
HND | 16:30 Local | -- | Forecast |
AS403
Alaska Airlines |
FAT | 16:31 Local | -- | Forecast |
DL419
Delta Air Lines |
HNL | 16:39 Local | -- | Forecast |
AS410
Alaska Airlines |
ORD | 16:42 Local | -- | Forecast |
AS3122
Alaska Airlines |
PDX | 16:44 Local | -- | Forecast |
AS623
Alaska Airlines |
SAN | 16:47 Local | -- | Forecast |
AS2177
Alaska Horizon |
RNO | 16:48 Local | -- | Forecast |
WN4903
Southwest Airlines |
OAK | 16:50 Local | -- | Forecast |
|
5Y9005
Atlas Air |
BFI | 16:50 Local | -- | Forecast |
AS314
Alaska Airlines |
PHX | 16:53 Local | -- | Forecast |
AS2160
Alaska Horizon |
MSO | 16:57 Local | -- | Forecast |
AS530
Alaska Airlines |
BUR | 16:59 Local | -- | Forecast |
SY1954
Sun Country Airlines |
MSP | 17:00 Local | -- | Forecast |
DL8960
Delta Air Lines |
PDX | 17:00 Local | -- | Forecast |
DL560
Delta Air Lines |
ATL | 17:00 Local | -- | Forecast |
UA1660
United Airlines |
IAH | 17:00 Local | -- | Forecast |
AS635
Alaska Airlines |
PSP | 17:04 Local | boeing 737-990(er) | Forecast |
QR720
Qatar Airways |
DOH | 17:05 Local | -- | Forecast |
AS1528
Alaska Airlines |
BUR | 17:06 Local | -- | Forecast |
UA1730
United Airlines |
LAX | 17:06 Local | -- | Forecast |
AS2085
Alaska Horizon |
RNO | 17:12 Local | -- | Forecast |
UA1503
United Airlines |
ORD | 17:15 Local | -- | Forecast |
EK230
Emirates |
DXB | 17:15 Local | -- | Forecast |
AS651
Alaska Airlines |
SAN | 17:15 Local | -- | Forecast |
WN615
Southwest Airlines |
SJC | 17:15 Local | -- | Forecast |
UA5592
United Airlines |
SFO | 17:20 Local | -- | Forecast |
DL4141
Delta Air Lines |
RDM | 17:20 Local | -- | Forecast |
WN3427
Southwest Airlines |
DEN | 17:20 Local | -- | Forecast |
AS2109
Alaska Horizon |
BOI | 17:23 Local | embraer e175lr | Forecast |
AS773
Alaska Airlines (Xáat Kwáani Livery) |
SNA | 17:24 Local | -- | Forecast |
AS2045
Alaska Horizon |
FCA | 17:25 Local | embraer e175lr | Forecast |
AS388
Alaska Airlines |
BNA | 17:29 Local | -- | Forecast |
|
1I800
Netjets |
PDK | 17:30 Local | -- | Forecast |
AS180
Alaska Airlines |
FCO | 17:30 Local | -- | Forecast |
DL3832
Delta Air Lines |
GEG | 17:30 Local | -- | Forecast |
DL2256
Delta Air Lines |
MCI | 17:30 Local | -- | Forecast |
AS2292
Alaska Horizon (Horizon Retro Livery) |
EUG | 17:30 Local | embraer e175lr | Forecast |
AA727
American Airlines |
DFW | 17:38 Local | -- | Forecast |
BR695
Eva Air Cargo |
TPE | 17:40 Local | boeing 777-f | Forecast |
AS2053
Alaska Horizon |
MFR | 17:40 Local | -- | Forecast |
AY34
Finnair |
HEL | 17:40 Local | -- | Forecast |
AS2435
Alaska Horizon |
PSC | 17:40 Local | -- | Forecast |
AS3258
Alaska Airlines |
PDX | 17:40 Local | -- | Forecast |
AS3433
Alaska Airlines |
BLI | 17:42 Local | embraer e175lr | Forecast |
DL1165
Delta Air Lines |
SLC | 17:45 Local | -- | Forecast |
AS2293
Alaska Horizon (Horizon Retro Livery) |
PUW | 17:45 Local | embraer e175lr | Forecast |
DL144
Delta Air Lines |
AMS | 17:45 Local | -- | Forecast |
AS2142
Alaska Horizon (Washington State Cougars Livery) |
STS | 17:46 Local | -- | Forecast |
DL3682
Delta Air Lines |
YVR | 17:46 Local | -- | Forecast |
DL848
Delta Air Lines |
AUS | 17:48 Local | -- | Forecast |
AS284
Alaska Airlines |
FAI | 17:51 Local | -- | Forecast |
AS615
Alaska Airlines |
STL | 17:52 Local | -- | Forecast |
AS225
Alaska Airlines (Honoring Those Who Serve Livery) |
ANC | 17:52 Local | boeing 737 max 9 | Forecast |
DL2698
Delta Air Lines |
PHX | 17:55 Local | -- | Forecast |
AS730
Alaska Airlines |
LAS | 17:55 Local | -- | Forecast |
AS123
Alaska Airlines |
HNL | 17:55 Local | -- | Forecast |
AS492
DL489
CI5393
WN3254
AS686
DL474
AS795
DL281
AS744
AS3438
AS493
AS614
AS553
AS592
AS2060
AS1411
SY8034
AS3057
SY1638
NH117
AS403
DL419
AS410
AS3122
AS623
AS2177
WN4903
AS314
AS2160
AS530
SY1954
DL8960
DL560
UA1660
AS635
QR720
AS1528
UA1730
AS2085
UA1503
EK230
AS651
WN615
UA5592
DL4141
WN3427
AS2109
AS773
AS2045
AS388
AS180
DL3832
DL2256
AS2292
AA727
BR695
AS2053
AY34
AS2435
AS3258
AS3433
DL1165
AS2293
DL144
AS2142
DL3682
DL848
AS284
AS615
AS225
DL2698
AS730
AS123