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 | $125 (Cheapflightsfares) |
One-way from | $68 (Southwest) |
Popular in | December |
Cheapest in | January |
Average price | $302 |
Good round-trip deal | $235 or less |
Good one-way deal | $136 or less |
Fly from
Fly to
Route
Depart
Return
Price
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Sun 12/14
7:15 am-9:45 am
Nonstop2h 30m
Seattle/Tacoma Intl
Wed 12/17
12:45 pm-6:18 pm
1 stop5h 33m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Sat 1/10
5:04 pm-10:22 pm
1 stop5h 18m
Seattle/Tacoma Intl
Sun 1/11
8:35 am-10:57 am
Nonstop2h 22m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Wed 1/28
1:20 pm-6:29 pm
1 stop5h 09m
Seattle/Tacoma Intl
Sat 1/31
11:15 am-1:34 pm
Nonstop2h 19m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Sun 1/11
2:30 pm-4:51 pm
Nonstop2h 21m
Seattle/Tacoma Intl
Tue 1/13
11:25 am-4:14 pm
1 stop4h 49m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Wed 12/17
3:43 pm-8:50 pm
1 stop5h 07m
Seattle/Tacoma Intl
Fri 12/19
8:35 am-10:56 am
Nonstop2h 21m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Sat 12/13
7:15 am-9:45 am
Nonstop2h 30m
Seattle/Tacoma Intl
Sat 12/13
5:00 pm-9:45 pm
1 stop4h 45m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Mon 1/12
7:00 am-9:15 am
Nonstop2h 15m
Seattle/Tacoma Intl
Tue 1/20
5:15 am-12:35 pm
2 stops7h 20m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Mon 12/15
9:04 am-2:44 pm
1 stop5h 40m
Seattle/Tacoma Intl
Wed 12/17
7:10 am-1:16 pm
1 stop6h 06m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Thu 1/8
2:10 pm-10:30 pm
1 stop8h 20m
Seattle/Tacoma Intl
Sun 1/11
8:35 am-7:50 pm
2 stops11h 15m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Thu 1/29
9:00 am-4:00 pm
2 stops7h 00m
Seattle/Tacoma Intl
Tue 2/3
6:05 am-2:15 pm
2 stops8h 10m
| 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 Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
The best time to book flights from San Jose, California to Seattle is 88 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 $82). 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 18% 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.
Overall
Comfort
Crew
Boarding
Food
Entertainment
Reviews
Marcie,Nov 2025
PIT - SEA
Overall
Comfort
Crew
Boarding
Food
Entertainment
Reviews
Marcie,Nov 2025
PIT - SEA
Overall
Comfort
Crew
Boarding
Food
Entertainment
Reviews
Marcie,Nov 2025
PIT - SEA
Overall
Comfort
Crew
Boarding
Food
Entertainment
Reviews
Marcie,Nov 2025
PIT - SEA
Overall
Comfort
Crew
Boarding
Food
Entertainment
Reviews
Marcie,Nov 2025
PIT - SEA
Overall
Comfort
Crew
Boarding
Food
Entertainment
Reviews
Marcie,Nov 2025
PIT - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$75 | Average$193 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$108 | Average$263 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$112 | Average$228 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$115 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$136 | Average$244 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$152 | Average$289 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$191 | Average$485 | FlexibilityNo cancel fee | On-time69% |