$33 Cheap Flights to Foster City, CA

View $33 flight on Sat, May 31, 2025Opens in a new window

Popular airlines to Foster City

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How much is the cheapest flight to Foster City?

Prices were available within the past 7 days and start at $33 for one-way flights and $66 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, May 31 - Mon, Jun 2
LAX
Los Angeles
SJC
San Jose
$66 Roundtrip, found 1 hour ago
$66
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Sat, May 31 from Los Angeles to San Jose, returning Mon, Jun 2, priced at $66 found 1 hour ago
Spirit Airlines
Tue, Jun 3 - Wed, Jun 4
LAX
Los Angeles
OAK
Oakland
$82 Roundtrip, found 2 hours ago
$82
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Tue, Jun 3 from Los Angeles to Oakland, returning Wed, Jun 4, priced at $82 found 2 hours ago
Frontier Airlines
Wed, Jul 2 - Tue, Jul 8
LAX
Los Angeles
SFO
San Francisco
$92 Roundtrip, just found
$92
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jul 2 from Los Angeles to San Francisco, returning Tue, Jul 8, priced at $92 just found
Spirit Airlines
Sat, May 31 - Wed, Jun 4
EWR
New York
SJC
San Jose
$150 Roundtrip, found 4 hours ago
$150
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Sat, May 31 from New York to San Jose, returning Wed, Jun 4, priced at $150 found 4 hours ago
Spirit Airlines
Tue, May 27 - Tue, Jun 3
EWR
New York
OAK
Oakland
$152 Roundtrip, found 8 hours ago
$152
Roundtrip
found 8 hours ago
Select Spirit Airlines flight, departing Tue, May 27 from New York to Oakland, returning Tue, Jun 3, priced at $152 found 8 hours ago

Find the cheapest month to fly from Columbus (CMH) to San Francisco (SFO)

February is typically the cheapest month to fly

From $158 - $437 per traveler.

Graph displaying average flight prices per month

Tips to find the cheapest flights to Foster City

The cheapest day to fly

Get started finding a cheap flight to Foster City on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

May is the cheapest month to fly to Foster City. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Foster City. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Foster City, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Foster City

The lowest price for round-trip flights to Foster City in 2025 starts from from $66, while one-way tickets start from from $33. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Foster City. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Foster City

Spirit Airlines, Frontier Airlines are just some of the airlines that can typically offer cheap tickets to Foster City. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Foster City and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Foster City, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Foster City. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Foster City plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Foster City

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Foster City.

Stopover savings

The cheapest tickets to Foster City are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Foster City. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Foster City for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Foster City. Simply download the free Expedia app to your smart device and activate Foster City flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Foster City. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

What month is the cheapest to fly to Foster City?
Flights to Foster City are usually the least expensive in November *. You may be able to save money on fares during this time if you keep an eye out. *Cheapest month to fly is based on the month with the cheapest flight found on Expedia.com in the next 330 days.
Which US cities have the cheapest flights to Foster City?
Score cheap flights to Foster City from Los Angeles, San Diego and New York. These cities typically offer the best fares to this top destination. But bear in mind that stopovers, holiday periods and demand will also impact rates, so stay flexible and book when you see a bargain.
Which US cities fly direct to Foster City?
Choose from 64 US destinations that have direct flights to Foster City. When reserving on Expedia, click on the “Direct flights only” box to compare nonstop routes. Fly to Foster City from any of these cities:

  • Los Angeles
  • San Diego
  • New York
  • Seattle
  • Las Vegas

How to find a cheap flight to Foster City?
Book early or look for a cheap flight to Foster City during off-peak months like February and March. Leaving on a Thursday could also save you an average of 16% compared to a Sunday flight.* The Expedia app makes it even easier to know when to book. Just turn on the toggle for “Watch prices” and get notified when there’s a better deal.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Foster City?
While booking in advance is usually the easiest way to save money, don’t panic if your Foster City getaway is last minute. You can still find cheap flights to Foster City, especially if your plans have a little wiggle room. Try switching up your dates, exploring different ticket options or flying out of another hub.
How far in advance should I book a flight to Foster City?
To pick up the biggest savings on domestic journeys, book your flight to Foster City 28 days ahead of your travel dates. For international flights, book two to four months in advance. This improves your chances of getting the departure dates and seats you want.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Foster City?
You can save an average of 8% if you buy tickets on a Sunday instead of Fridays, which tend to be the priciest day to book.* When it comes to scoring a cheap flight to Foster City, the key is good timing.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Foster City?
Lock in the aisle seat or window seat and travel to Foster City with one of these leading carriers:

  • United Airlines - 5,432 flights to Foster City each month, including 5,259 flights to San Francisco Intl. Airport (SFO) per month.
  • Alaska Airlines - 2,960 flights to Foster City each month, including 2,197 flights to San Francisco Intl. Airport (SFO) per month.

Where do you fly into Foster City?
When you’re flying to Foster City, the main airport to land at is San Francisco Intl. Airport (SFO). You can also head to nearby hubs like Oakland Intl. Airport (OAK), Norman Y. Mineta San Jose Intl. Airport (SJC) or San Jose, CA (RHV-Reid Hillview). Another great option to consider when you fly to Foster City is San Carlos Airport (SQL).
Can I save money by booking a Foster City trip package?
Book a Foster City flight and hotel package deal on Expedia, and you can benefit from significant savings. It’s simple to bundle your hotel and flight, and you can add car rentals and tours to create your own personalized Foster City getaway. Plus, there’s nothing like the convenience of booking everything in one place.
Can I change or cancel my flight to Foster City?
If you bought your flight to Foster City within the last 24 hours, you can usually cancel or change it for free. After that, additional costs may apply depending on the airline’s terms of service. For more information, visit our Customer Service Portal. Keep in mind that some flights are non-refundable, so you may be issued a credit toward future travel rather than a direct refund. When searching on Expedia, check the “Changes included” or “No cancel fee” boxes to see fares with flexible change policies.
Flights to Foster City information
Destination airport
Norman Y. Mineta San Jose Intl.
Destination airport IATA code
SJC
Destination city name
San Jose
Roundtrip price
$66

Trending flights to Foster City

Prices were available within the past 7 days and start at $33 for one-way flights and $66 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, May 31 - Mon, Jun 2
LAX
Los Angeles
SJC
San Jose
$66 Roundtrip, found 1 hour ago
$66
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Sat, May 31 from Los Angeles to San Jose, returning Mon, Jun 2, priced at $66 found 1 hour ago

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*Available to One Key members.