San Jose to Seattle SJC → SEA
Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA)
The cheapest return found recently is $237 with Alaska Airlines, 30 Oct – 1 Nov, found 4 days ago. The cheapest one-way found recently is $132 with Alaska Airlines, 17 Nov, found yesterday.
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$237
30 Oct – 1 Nov · Alaska Airlines
Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA)
Leaves 8:44 p.m. · Return leaves 2:59 p.m. · 8 h 31 min of travel, both ways together
out nonstop, back 1 stop
found 4 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$237 30 Oct – 1 Novfound 4 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $134 to $199.
At $237, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Not enough comparable prices yet: we hold return fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 2-night return fares leaving within 3 days of 30 Oct to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 30 Oct – 1 Nov | $237 | Alaska Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA) | out nonstop, back 1 stop | found 4 days ago | See prices for these dates |
Airlines on the cheapest dates: Alaska Airlines.
One-way
The cheapest one-way fare on each of 4 departure dates is usually $120 to $152.
Cheapest one-way found recently
$132
17 Nov · Alaska Airlines
Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA)
Leaves 1:26 p.m. · 2 h 15 min trip
nonstop
found yesterday
Cheapest nonstop one-way
$132
17 Nov · Alaska Airlines
Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA)
Leaves 1:26 p.m. · 2 h 15 min trip
nonstop
found yesterday
Found recently, and the cheapest we hold
$132 17 Novfound yesterdayOpen this trip
$76 17 Novfound 5 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $69 to $126.
At $132, the cheapest one-way found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 4 departure dates from 15 Nov to 20 May 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 2 other departure dates within 3 days of 17 Nov, and none is cheaper.
Every date we hold
6 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 15 Nov | $142 | Alaska Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA) | nonstop | found 6 days ago | Open this trip |
| 17 Nov | $76 | Southwest Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA) | nonstop | found 5 days ago | Open this trip |
| 18 Nov | $134 | Alaska Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA) | nonstop | found yesterday | Open this trip |
| 20 May 2027 | $182 | Alaska Airlines | Norman Y. Mineta San Jose International Airport (SJC) → Seattle-Tacoma International Airport (SEA) | nonstop | found 2 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $76.
Airlines on the cheapest dates: Alaska Airlines, Southwest Airlines.
Premium cabin fares from San Jose to Seattle
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 30 Oct – 1 Nov in another cabin: Premium economy · Business · First
Today's prices for 17 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for San Jose to Seattle?
Return
Fares 90 to 179 days before departure were typically 54% lower than 7 to 13 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 7–13 days | $301 | $237 | +115% | 12 |
| 14–29 days | $157 | $134 | +12% | 17 |
| 30–59 days | $163 | $134 | +16% | 20 |
| 60–89 days | $274 | $168 | +96% | 18 |
| 90–179 days | $140 | $140 | Cheapest seen | 13 |
| 180+ days | $338 | $338 | +141% | 8 |
One-way
The cheapest fares were 14 to 29 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $81 | $69 | Cheapest seen | 20 |
| 30–59 days | $81 | $69 | +0% | 21 |
| 90–179 days | $142 | $70 | +75% | 13 |
| 180+ days | $170 | $168 | +110% | 15 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Oakland → Seattle
61 km from San Jose
$218
$19 less than flying from San Jose
24 Feb 2027 – 27 Feb 2027 · OAK → SEA · out nonstop, back nonstop
found 2 days ago
Sacramento → Seattle
142 km from San Jose
$356
$119 more than flying from San Jose
17 Jul 2027 – 25 Jul 2027 · SMF → SEA · out nonstop, back 1 stop
found 3 days ago
Stockton → Seattle
85 km from San Jose
$701
$464 more than flying from San Jose
23 Oct – 24 Oct · SCK → SEA · out 1 stop, back 2 stops
found 5 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
San Francisco → Seattle
67 km from San Jose
$69
$63 less than flying from San Jose
18 Nov · SFO → SEA · 1 stop
found yesterday
Oakland → Seattle
61 km from San Jose
$107
$25 less than flying from San Jose
18 Nov · OAK → SEA · nonstop
found yesterday
Sacramento → Seattle
142 km from San Jose
$169
$37 more than flying from San Jose
2 Nov · SMF → SEA · 1 stop
found yesterday
Stockton → Seattle
85 km from San Jose
$217
$85 more than flying from San Jose
25 Oct · SCK → SEA · 1 stop
found 4 days ago
Santa Rosa → Seattle
142 km from San Jose
$229
$97 more than flying from San Jose
11 Mar 2027 · STS → SEA · nonstop
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 30 Oct – 1 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work