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Cheap Flights from Seattle to San Jose, CR, Costa Rica - SEA to SJO Last modified: May 26, 2016 8:43 PM

Popular flights from Seattle to San Jose Last modified: May 26, 2016 8:43 PM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Sep 10, 2016 Sep 19, 2016 $339
Sep 17, 2016 Sep 19, 2016 $339
Sep 18, 2016 Sep 30, 2016 $339
American Airlines
Departure Date Return Date Lowest Price
Sep 14, 2016 Sep 23, 2016 $453
Sep 17, 2016 Sep 24, 2016 $453
Sep 18, 2016 Sep 30, 2016 $453
Sep 21, 2016 Sep 27, 2016 $453
Sep 22, 2016 Sep 26, 2016 $453
Lacsa Lineas Aereas Costarricenses
Departure Date Return Date Lowest Price
Jun 7, 2016 Jun 14, 2016 $739
JetBlue Airways
Departure Date Return Date Lowest Price
Sep 10, 2016 Sep 19, 2016 $697
United Airlines
Departure Date Return Date Lowest Price
Sep 10, 2016 Sep 14, 2016 $366
Sep 10, 2016 Sep 14, 2016 $366
Sep 19, 2016 Oct 6, 2016 $366
Sep 19, 2016 Oct 6, 2016 $366
Sep 19, 2016 Oct 6, 2016 $366

How Much Does it Cost to Fly from Seattle to San Jose (SEA to SJO)?

We have collected flight cost data from across the web for travel from Seattle to San Jose, and have found the average flight price for this trip to be $518.

When Can I Buy the Cheapest Flight from Seattle to San Jose (SEA to SJO)?

Airlines can adjust prices for plane tickets from Seattle to San Jose based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Cheapest Day To Fly from Seattle to San Jose

The chart below shows up-to-date information regarding the cheapest days to fly from Seattle to San Jose.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$517 $526 $497 $534 $531 $524 $491

Lowest Fares Chart By Month from Seattle to San Jose

The chart below shows the lowest fare by month when flying from Seattle to San Jose.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Seattle San Jose Alaska 5/29/16 6/15/16 1 $491
June Seattle San Jose United 6/18/16 6/25/16 2 $524
July Seattle San Jose United 7/3/16 7/10/16 1 $560
August Seattle San Jose Alaska 8/27/16 9/10/16 1 $442
September Seattle San Jose Alaska 9/10/16 9/19/16 1 $339
October Seattle San Jose Alaska 10/11/16 10/26/16 1 $340
November Seattle San Jose Alaska 11/1/16 11/7/16 1 $340
December Seattle San Jose Alaska 12/2/16 12/9/16 1 $649

Round Trip vs One Way Flights from Seattle to San Jose (SEA to SJO)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Seattle to San Jose. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Seattle to San Jose is $370.

The average price for round trip flights from Seattle to San Jose is $640.

Seattle to San Jose Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from Seattle to San Jose?
Answer: Los Angeles, CA

Airlines Flying from Seattle to San Jose (SEA to SJO) Number of flights searched: 194Last modified: May 26, 2016 8:43 PM

Below are the different airlines that fly from Seattle to San Jose with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Seattle to San Jose.

Seattle to San Jose
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American MIA X X X X X X X
Air Canada YYZ X X
Air Canada YVR / YYZ X X X X
Alaska LAX X X X X X X X
Alaska PDX / LAX X X X X
Delta ATL X X X X X X X
United ORD X X X X X X X
United LAX / IAH X X X X X
Southwest BWI X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Seattle and San Jose, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Seattle - SEA

FlightsAirlineLowest Price
Seattle to Atlanta American, Alaska, Frontier, Spirit, United $317
Seattle to Dallas - Ft Worth American, Alaska, Frontier, Spirit, Sun Country, United, Virgin America $236
Seattle to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $177
Seattle to New York American, Alaska, JetBlue, Frontier, Sun Country, United, Virgin America $327
Seattle to Los Angeles American, Alaska, Spirit, United, Virgin America $97
Seattle to Miami American, Alaska, JetBlue, Frontier, Sun Country, United $369
Seattle to Orlando American, Alaska, JetBlue, Frontier, Sun Country, United $244
Seattle to Las Vegas American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $111

Cheap International Flights from Seattle - SEA

FlightsAirlineLowest Price
Seattle to Liberia American, Alaska, JetBlue, Avianca LACSA, United $442
Seattle to Managua American, Alaska, JetBlue, United $616
Seattle to Panama City American, Alaska, JetBlue, Copa, Spirit, United $637
Seattle to London American, Air Berlin, Air France, Alaska, Finnair, Alitalia, JetBlue, British Airways, airBaltic, Condor, Aer Lingus, Iberia, Adria, KLM, Lufthansa, LOT, Thomas Cook, Czech, Austrian, SATA, XL Airways, SAS, Brussels, Tap Portugal, United, Air Europa, Virgin Atlantic $749

Cheap Domestic Flights to San Jose - SJO

FlightsAirlineLowest Price
Portland to Atlanta American, Alaska, Frontier, United $383
Portland to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $273
Portland to Dallas - Ft Worth American, Alaska, Frontier, Hawaiian, Spirit, United, Virgin America $147
Portland to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $113

Cheap International Flights to San Jose - SJO

FlightsAirlineLowest Price
Portland to San Jose Silver, American, Alaska, JetBlue, Avianca LACSA, United, Virgin America $341
Vancouver to San Jose Air Canada, Avianca LACSA, WestJet $467
Victoria to San Jose Air Canada, Avianca LACSA, WestJet $581
Bellingham to San Jose Silver, American, Alaska, Avianca LACSA, United $541
Pasco to San Jose Silver, American, Alaska, United $648
Vancouver to Liberia Air Canada, Avianca LACSA, WestJet $905
Vancouver to Quepos Air Canada, Avianca LACSA $801
Portland to Liberia American, Alaska, JetBlue, United $435
Vancouver to London Air Berlin, Air Canada, Air France, Finnair, Alitalia, British Airways, Condor, Aer Lingus, Iberia, Meridiana, KLM, Lufthansa, LOT, Thomas Cook, Czech, Arkefly, Austrian, SATA, SAS, Brussels, Tap Portugal, Air Transat, Virgin Atlantic, WestJet $511
Vancouver to Managua Air Canada, WestJet $615
Victoria to Liberia Air Canada, Avianca LACSA, WestJet Check Dates
Portland to Managua American, Alaska, United $760
Vancouver to Panama City Air Canada, Copa, WestJet $464
Vancouver to New York Pacific Coastal, American, Air Canada, Alaska, JetBlue, Cathay, United, Virgin America, Sunwing, WestJet $297
Cheap Flights from Seattle to San Jose, CR, Costa Rica, from $339 Round trip from SEA to SJO