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 | $137 (Delta) |
One-way from | $69 (Delta) |
Popular in | December |
Cheapest in | February |
Average price | $289 |
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
Wed 2/18
1:26 pm-8:37 pm
1 stop7h 11m
Seattle/Tacoma Intl
Thu 3/5
9:49 am-4:54 pm
1 stop7h 05m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Tue 2/17
1:26 pm-6:43 pm
1 stop5h 17m
Seattle/Tacoma Intl
Wed 3/4
11:17 am-4:54 pm
1 stop5h 37m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Tue 2/17
1:26 pm-6:43 pm
1 stop5h 17m
Seattle/Tacoma Intl
Sun 3/1
9:49 am-4:54 pm
1 stop7h 05m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Wed 12/3
3:43 pm-10:23 pm
1 stop6h 40m
Seattle/Tacoma Intl
Wed 12/10
2:05 pm-7:18 pm
1 stop5h 13m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Thu 12/11
5:45 am-12:57 pm
1 stop7h 12m
Seattle/Tacoma Intl
Thu 12/18
5:25 am-12:31 pm
1 stop7h 06m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Fri 2/20
8:00 am-10:19 am
Nonstop2h 19m
Seattle/Tacoma Intl
Fri 3/6
8:09 am-10:28 am
Nonstop2h 19m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Sat 12/13
6:30 am-2:15 pm
1 stop7h 45m
Seattle/Tacoma Intl
Tue 12/16
5:15 am-3:00 pm
2 stops9h 45m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Fri 2/20
8:00 am-10:19 am
Nonstop2h 19m
Seattle/Tacoma Intl
Tue 3/3
2:59 pm-5:09 pm
Nonstop2h 10m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Sat 12/6
7:20 am-4:50 pm
2 stops9h 30m
Seattle/Tacoma Intl
Mon 12/8
9:35 am-6:00 pm
1 stop8h 25m
San JoseSeattle
SJC - SEA
SJCSEA
San Jose
Thu 12/11
8:00 am-10:19 am
Nonstop2h 19m
Seattle/Tacoma Intl
Thu 12/18
9:41 pm-11:59 pm
Nonstop2h 18m
| 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.
Entertainment
Crew
Food
Boarding
Comfort
Overall
Reviews
Anonymous,Aug 2025
MFR - SEA
Entertainment
Crew
Food
Boarding
Comfort
Overall
Reviews
Anonymous,Aug 2025
MFR - SEA
Entertainment
Crew
Food
Boarding
Comfort
Overall
Reviews
Anonymous,Aug 2025
MFR - SEA
Entertainment
Crew
Food
Boarding
Comfort
Overall
Reviews
Anonymous,Aug 2025
MFR - SEA
Entertainment
Crew
Food
Boarding
Comfort
Overall
Reviews
Anonymous,Aug 2025
MFR - SEA
Entertainment
Crew
Food
Boarding
Comfort
Overall
Reviews
Anonymous,Aug 2025
MFR - 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% |