SJC offers free Wi-Fi throughout the airport, making it easy to stay connected while waiting for your flight.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $110 (Trip.com) |
One-way from | $59 (Alaska Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $191 |
Good round-trip deal | $189 or less |
Good one-way deal | $98 or less |
Fly from
Fly to
Route
Depart
Return
Price
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Tue 3/10
8:55 pm-11:10 pm
Nonstop2h 15m
Seattle/Tacoma Intl
Sun 3/15
6:55 am-9:00 am
Nonstop2h 05m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Tue 3/17
11:40 am-2:00 pm
Nonstop2h 20m
Seattle/Tacoma Intl
Fri 3/27
3:15 pm-5:31 pm
Nonstop2h 16m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Tue 3/17
3:25 pm-5:42 pm
Nonstop2h 17m
Seattle/Tacoma Intl
Mon 3/30
3:15 pm-5:31 pm
Nonstop2h 16m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Fri 3/6
6:50 am-2:00 pm
1 stop7h 10m
Seattle/Tacoma Intl
Sun 3/8
6:55 am-9:00 am
Nonstop2h 05m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Mon 3/9
3:35 pm-8:50 pm
1 stop5h 15m
Seattle/Tacoma Intl
Fri 3/13
7:55 pm-10:10 pm
Nonstop2h 15m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Sat 3/28
6:15 pm-1:25 am
1 stop7h 10m
Seattle/Tacoma Intl
Tue 3/31
7:00 pm-9:10 pm
Nonstop2h 10m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Fri 2/27
11:45 am-2:06 pm
Nonstop2h 21m
Seattle/Tacoma Intl
Sun 3/1
9:50 am-5:33 pm
1 stop7h 43m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Mon 3/16
3:37 pm-11:23 pm
1 stop7h 46m
Seattle/Tacoma Intl
Mon 3/30
3:15 pm-5:31 pm
Nonstop2h 16m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Fri 3/6
11:45 am-2:06 pm
Nonstop2h 21m
Seattle/Tacoma Intl
Mon 3/9
7:59 pm-10:17 pm
Nonstop2h 18m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Tue 3/10
11:58 am-4:57 pm
1 stop4h 59m
Seattle/Tacoma Intl
Thu 3/12
7:05 am-9:22 am
Nonstop2h 17m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
The best time to book flights from San Jose, California to Seattle is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, January is the cheapest month in which you can book a flight from San Jose, California to Seattle (average of $77). Flying from San Jose, California to Seattle in May is currently the most expensive (average of $137). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
A simple way to save on the total cost of your ticket is to fly from San Jose, California to Seattle in the evening. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.
Travelers seeking maximum savings on their San Jose, California to Seattle flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Anonymous,Dec 2025
SJC - SEA
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Anonymous,Dec 2025
SJC - SEA
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Anonymous,Dec 2025
SJC - SEA
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Anonymous,Dec 2025
SJC - SEA
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Anonymous,Dec 2025
SJC - SEA
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Anonymous,Dec 2025
SJC - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$203 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$88 | Average$243 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$94 | Average$218 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$115 | Average$219 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$121 | Average$277 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$133 | Average$237 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$133 | Average$332 | FlexibilityNo cancel fee | On-time69% |