How does KAYAK find such low prices on flights from Washington to San Jose?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to San Jose.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to San Jose?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Jose from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to San Jose?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Jose with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to San Jose?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Jose from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$79 CHEAP FLIGHTS from Washington to San Jose

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Flight Deals

Cheap Flights from Washington to San Jose

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Washington to San Jose

Wed, Oct 7 - Wed, Oct 14

7:06 am - 9:07 amPDX Portland-SJC San Jose

2h 01mnonstop

9:44 am - 11:32 amSJC San Jose-PDX Portland

1h 48mnonstop

$157Alaska Airlines

Thu, Nov 19 - Tue, Dec 15

9:37 pm - 11:26 pmPDX Portland-SJC San Jose

1h 49mnonstop

11:40 am - 1:31 pmSJC San Jose-PDX Portland

1h 51mnonstop

$157Alaska Airlines

Sat, Oct 10 - Thu, Oct 15

5:55 pm - 7:45 pmPDX Portland-SJC San Jose

1h 50mnonstop

9:55 pm - 11:50 pmSJC San Jose-PDX Portland

1h 55mnonstop

$157Southwest

Thu, Oct 15 - Mon, Oct 19

9:55 pm - 11:45 pmPDX Portland-SJC San Jose

1h 50mnonstop

9:55 pm - 11:50 pmSJC San Jose-PDX Portland

1h 55mnonstop

$157Southwest

Tue, Oct 13 - Wed, Oct 14

8:49 pm - 11:00 pmSEA Seattle/Tacoma Intl-SJC San Jose

2h 11mnonstop

7:31 am - 10:00 amSJC San Jose-SEA Seattle/Tacoma Intl

2h 29mnonstop

$157Delta

Sat, Oct 10 - Tue, Oct 13

8:25 am - 10:50 amSEA Seattle/Tacoma Intl-SJC San Jose

2h 25mnonstop

11:30 am - 2:00 pmSJC San Jose-SEA Seattle/Tacoma Intl

2h 30mnonstop

$157Delta

Thu, Oct 1 - Mon, Oct 5

11:02 am - 7:53 pmPDX Portland-SJC San Jose

8h 51m1 stop Los Angeles Los Angeles

6:57 pm - 8:42 pmSJC San Jose-PDX Portland

1h 45mnonstop

$163Multiple Airlines

Thu, Oct 22 - Tue, Oct 27

12:11 pm - 1:20 pmPDX Portland-SJC San Jose

25h 09m1 stop Las Vegas Harry Reid Intl

7:55 am - 9:50 amSJC San Jose-PDX Portland

1h 55mnonstop

$163Multiple Airlines

Wed, Oct 21 - Sat, Oct 24

6:00 am - 12:09 pmSEA Seattle/Tacoma Intl-SJC San Jose

6h 09m1 stop Phoenix Sky Harbor Intl

6:00 am - 1:47 pmSJC San Jose-SEA Seattle/Tacoma Intl

7h 47m1 stop Phoenix Sky Harbor Intl

$239American Airlines

Wed, Oct 21 - Tue, Oct 27

6:00 am - 12:09 pmSEA Seattle/Tacoma Intl-SJC San Jose

6h 09m1 stop Phoenix Sky Harbor Intl

12:59 pm - 8:53 pmSJC San Jose-SEA Seattle/Tacoma Intl

7h 54m1 stop Phoenix Sky Harbor Intl

$239American Airlines

Recent last minute flight deals from Washington to San Jose

Sat, Sep 12 - Mon, Sep 14

7:00 am - 9:02 amPDX Portland-SJC San Jose

2h 02mnonstop

7:02 am - 8:49 amSJC San Jose-PDX Portland

1h 47mnonstop

$246Alaska Airlines

Wed, Sep 16 - Fri, Oct 2

9:45 pm - 12:43 pmSEA Seattle/Tacoma Intl-SJC San Jose

14h 58m1 stop Las Vegas Harry Reid Intl

9:03 pm - 6:36 pmSJC San Jose-SEA Seattle/Tacoma Intl

21h 33m1 stop Los Angeles Los Angeles

$269Frontier

Wed, Sep 16 - Sun, Sep 20

9:45 pm - 12:43 pmSEA Seattle/Tacoma Intl-SJC San Jose

14h 58m1 stop Las Vegas Harry Reid Intl

9:03 pm - 6:36 pmSJC San Jose-SEA Seattle/Tacoma Intl

21h 33m1 stop Los Angeles Los Angeles

$290Frontier

Mon, Sep 14 - Mon, Sep 28

8:37 pm - 10:27 pmPDX Portland-SJC San Jose

1h 50mnonstop

7:02 am - 8:49 amSJC San Jose-PDX Portland

1h 47mnonstop

$407Alaska Airlines

Wed, Sep 16 - Fri, Oct 2

2:55 pm - 5:05 pmSEA Seattle/Tacoma Intl-SJC San Jose

2h 10mnonstop

6:05 am - 8:20 amSJC San Jose-SEA Seattle/Tacoma Intl

2h 15mnonstop

$447Southwest

Wed, Sep 16 - Thu, Sep 17

11:22 am - 6:29 pmSEA Seattle/Tacoma Intl-SJC San Jose

7h 07m1 stop Phoenix Sky Harbor Intl

6:00 am - 1:46 pmSJC San Jose-SEA Seattle/Tacoma Intl

7h 46m1 stop Phoenix Sky Harbor Intl

$494American Airlines

Sat, Sep 12 - Sun, Oct 11

10:40 am - 12:35 pmPDX Portland-SJC San Jose

1h 55mnonstop

6:30 am - 8:25 amSJC San Jose-PDX Portland

1h 55mnonstop

$512Southwest

Tue, Sep 15 - Wed, Sep 16

11:22 am - 6:29 pmSEA Seattle/Tacoma Intl-SJC San Jose

7h 07m1 stop Phoenix Sky Harbor Intl

6:00 am - 1:49 pmSJC San Jose-SEA Seattle/Tacoma Intl

7h 49m1 stop Phoenix Sky Harbor Intl

$541American Airlines

Mon, Sep 14 - Thu, Sep 17

11:33 am - 2:01 pmSEA Seattle/Tacoma Intl-SJC San Jose

2h 28mnonstop

2:41 pm - 5:00 pmSJC San Jose-SEA Seattle/Tacoma Intl

2h 19mnonstop

$560Delta

Wed, Sep 16 - Thu, Sep 17

8:30 pm - 10:45 pmSEA Seattle/Tacoma Intl-SJC San Jose

2h 15mnonstop

11:32 am - 1:57 pmSJC San Jose-SEA Seattle/Tacoma Intl

2h 25mnonstop

$560Delta

Useful Info

Low season	January
High season	June
Cheapest flight	$79

Most popular time to fly with an average 4% increase in price.

Flight from Seattle to San Jose

Verified travelerFlew with Alaska Airlines-Jul 2026

Super easy to park in the Economy Lot #1 and take the shuttle to the terminal.

GeraldFlew with Delta-Mar 2026

Flights earlier in the day are better - less chance of stacking delays. Much better than SFO flights, They're terrible in August (fog).

Verified travelerFlew with Alaska Airlines-Aug 2024

The airport is busy and a mess with construction. There is a train to take so account for extra time.

How does KAYAK find such low prices on flights from Washington to San Jose?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to San Jose.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to San Jose?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Jose from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to San Jose?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Jose with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to San Jose?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Jose from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.