
Cheap Flights to San Francisco
View ₩319,900 flight on Thu, Sep 17, 2026Opens in a new windowPopular airlines to San Francisco
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How much is the cheapest flight to San Francisco?
Prices were available within the past 7 days and start at ₩319,900 for one-way flights and ₩554,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 20 - Thu, Oct 22
IAD
Washington
SJO
San José
₩554,500
Roundtrip
found 1 day ago

Sun, Oct 25 - Mon, Oct 26
IAD
Washington
SJO
San José
₩566,100
Roundtrip
found 1 day ago

Sat, Oct 24 - Sun, Nov 1
IAD
Washington
SJO
San José
₩616,500
Roundtrip
found 1 day ago

Fri, Oct 23 - Sun, Oct 25
IAD
Washington
SJO
San José
₩836,300
Roundtrip
just found

Fri, Oct 23 - Sun, Oct 25
IAD
Washington
SJO
San José
₩892,800
Roundtrip
just found
Frequently asked questions
How to book the cheapest flight to San Francisco?
If you want to have some extra spending money on your trip to San Francisco, then listen up! As any experienced jet-setter will tell you, avoid booking at the last minute. Airfares are generally more expensive close to the departure date. Also, look around online and compare your options. If your destination has several airports, you may be able to score a better deal by flying into one a little farther out. Last of all, be ready to secure your seat quickly if you stumble on a great deal. It might not stick around for too long. With a bit of knowledge and some luck, the ideal airfare will be yours.
Do you have any tips for my flight to San Francisco?
No matter where you're coming from, flying can be a seamless experience if you're well prepared. We've compiled a list of top travel tips that will get your San Francisco vacation started on the right note. What to pack in your hand luggage:
- Air travel can be easy if you carry the right gear. Firstly, you'll need toiletry items, such as a toothbrush and some deodorant, a spare set of clothes and something to read. Secondly, make room in your bag for your phone, tablet and chargers, your medications and maybe a neck pillow as well. Lastly, and most importantly, remember to bring your passport, travel documents and your credit cards.
- Pack all your full-sized bottles of shampoo and conditioner in your checked luggage. Any liquids or gels in your carry-on suitcase larger than 3.4 ounces (100 milliliters) will be confiscated by authorities. Sharp objects, like your Swiss Army knife, and products which are explosive or flammable, such as spray paint, flares and poisons, are also not allowed.
- Your aim is to feel as comfortable as possible. Opt for flat, closed-toe shoes, dress in loose, breathable clothing and remember to bring a jacket in case it gets chilly in the cabin.
- Deep vein thrombosis (DVT), a blood clot condition caused by extended periods of inactivity, can be a risk on long-haul flights. Wander around the cabin and stretch your legs or do some gentle exercises in your seat to promote better circulation.
How to get through airport security fast when flying to San Francisco?
Being organized before you arrive at the airport will help make your trip to San Francisco quick and painless. We've compiled some handy hints for a stress-free journey past security:
- First things first. Your passport and boarding pass will need to be presented to airport security. Keep them within easy reach to avoid fumbling around for them.
- Your belt, jacket, keys and other contents of your pockets, like your headphones, will need to go on a tray through the X-ray machine. Make your life easier by removing them as your turn draws near.
- Electronic devices like laptops and phones will also need to go on a tray for inspection. No need to worry though, you'll be back online before you know it.
- Any liquids or gels, such as shampoo or hairspray, that you want to take on board need to be in containers no larger than 3.4 ounces (100 milliliters). Also, everything must fit inside a quart-size (one liter), zip-lock bag.
- The right choice of footwear can save you valuable minutes. Boots are often required to be removed and X-rayed separately. Slip-on sneakers are usually not.
- Avoid taking prohibited items in your carry-on bag. If you have any sharp or pointed objects, pack them in your checked suitcase. They won't be allowed on board and will be confiscated.
Book with confidence
Searching for cheap flights to San Francisco? No travel company presents more choices than Expedia if you're looking to compare flights to San Francisco. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to San José. Expedia provides the cheapest flights to many destinations in San José and you may find even greater savings if you combine your flight with a hotel stay in San Francisco.
Travel information
Destination airport | Juan Santamaría Intl. |
|---|---|
Destination airport IATA code | SJO |
Destination city name | San José |
Roundtrip price | ₩554,500 |
*Available to Expedia members.