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Find cheap flights to San Carlos from $34

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Carlos departing on 7/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/30
Sun 7/7

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Good to know

Low season

January

High season

June

Cheapest flight

$34
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Ontario to San Francisco

FAQs - booking San Carlos flights

  • How long is the flight to San Carlos?

    Flights from Chicago4h 29m
    Flights from San Diego1h 33m
    Flights from New York6h 06m
    Flights from Boston6h 08m
    Flights from Los Angeles1h 26m
  • What is the cheapest flight to San Francisco?

    Based on KAYAK searches from the last 72 hours, if you fly from Ontario, you should have a good chance of getting the best deal to San Francisco as it was the cheapest place to fly from. Prices were found for as low as $34 one-way and $55 for a round-trip flight. Also in the last 72 hours, the most popular connection to San Francisco was from Los Angeles and the lowest price for a round-trip flight was $55.

  • Which airlines fly to San Francisco?

    Many airlines fly to San Francisco, the most common ones being United Airlines, Alaska Airlines, and Delta. See the amount of flights per week for popular airlines flying to San Francisco.

  • How to fly to San Carlos?

    You cannot fly directly to San Carlos. KAYAK recommends you fly to San Francisco (SFO) (10.19 miles from San Carlos). From there you can rent a car or get a taxi.

  • What airports are near San Carlos?

    The closest airport is San Francisco (SFO) (10.19 mi). Other nearby airports are Oakland (OAK) (14.29 mi), San Jose (SJC) (20.77 mi) or Concord Buchanan Fld (CCR) (35.08 mi). KAYAK recommends you fly to San Francisco.

  • How far is San Francisco from central San Francisco?

    You’ll need to travel 12 miles to reach the San Francisco city center from San Francisco.

  • What is the name of San Francisco’s airport?

    San Francisco is served by San Francisco, also commonly referred to as San Francisco or San Francisco Intl. The airport code is SFO.

  • How does KAYAK find such low prices on flights to San Carlos?

    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 to San Carlos.

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

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

  • What is the Hacker Fare option on flights to San Carlos?

    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 Carlos with an airline and back with another airline.

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

    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 Carlos up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to San Carlos

  • There is no major airport in San Carlos. It is instead served by San Francisco Airport.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Carlos flight deals.

Top 5 airlines flying to San Carlos

 
Need help choosing which airline to fly with from the United States to San Carlos? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9197 reviews
8.2Boarding
7.3Food
8.6Crew
7.3Entertainment
7.9Comfort
Airline reviews

Crew was outstanding. Flight was fine. Food was a joke! I didn't get the priority I paid for!! That pissed me off since I paid extra!!!

8.0 Excellentjim, May 2024GEG - SAN
Read more about Alaska Airlines reviews

Crew was outstanding. Flight was fine. Food was a joke! I didn't get the priority I paid for!! That pissed me off since I paid extra!!!

I liked the price of the 2 way tix. I hated having to pay $8.00 for Internet access. It should be free. Legroom and seats are very confining.

The one stewardess was rude about helping me put my bag in overhead….she said “ Is it heavy ?” (I am 73 yrs old)

The flight was about an hour late, and there was notable turbulence for a good part of it. But of course, that was not Alaska Air’s fault, and I think the crew did a good job of keeping it safe. Service suffered a little as a result (I wish I had been offered the option of purchasing food). Overall, it was ok, because we landed safe and sound. Thanks!

Flight was delayed 2 hours. Other than that, it was a good flight.

The flight was late getting in, so many were stressed. The snacks for a LONG flight was not enough.

The whole experience went very well except the rest rooms were a disaster

Sat on tarmac for 30 minutes despite staring at three empty gates, one of which we eventually pulled into

Everything was great. Flight was on time with no issues. It was a short connecting flight so ww didn't have food offered. The gate we got off at was very close to our connecting flight gate so that was very easy.

Pilot warned us it was going to be bumpy, which I usually like when it is, but it wasn't, so I spent most of the flight unnecessarily wondering when it was going to get rough. Just can't win sometimes. Ha!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

There were delays on both ends. It made it less than excellent. This plane was great though

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Book Cheap San Carlos Plane Tickets

Recent round-trip flight deals

8/26Mon
nonstopFrontier
1h 23mLAX-SFO
8/26Mon
nonstopFrontier
1h 29mSFO-LAX
$55
6/18Tue
nonstopFrontier
1h 27mONT-SFO
6/19Wed
nonstopFrontier
1h 23mSFO-ONT
$55
8/16Fri
nonstopDelta
1h 19mLAX-SFO
8/19Mon
nonstopDelta
1h 29mSFO-LAX
$91
7/28Sun
nonstopAlaska Airlines
1h 22mLAX-SFO
8/3Sat
nonstopAlaska Airlines
1h 36mSFO-LAX
$97
7/27Sat
nonstopAmerican Airlines
1h 24mLAX-SFO
8/6Tue
nonstopAmerican Airlines
1h 30mSFO-LAX
$119
7/4Thu
nonstopAlaska Airlines
1h 26mLAX-SFO
7/8Mon
nonstopAlaska Airlines
1h 40mSFO-LAX
$131
6/25Tue
nonstopUnited Airlines
1h 35mLAX-SFO
6/30Sun
nonstopUnited Airlines
1h 40mSFO-LAX
$149
8/16Fri
nonstopDelta
1h 19mLAX-SFO
8/18Sun
nonstopDelta
1h 32mSFO-LAX
$150
6/28Fri
nonstopAmerican Airlines
1h 24mLAX-SFO
7/1Mon
nonstopAmerican Airlines
1h 33mSFO-LAX
$172
8/16Fri
1 stopUnited Airlines
6h 31mORD-SFO
8/21Wed
nonstopUnited Airlines
4h 15mSFO-ORD
$185

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Recent one-way flight deals

7/2Tue
nonstopFrontier
1h 28mONT-SFO
$34
6/9Sun
nonstopFrontier
1h 27mONT-SFO
$38
8/16Fri
nonstopAmerican Airlines
1h 22mLAX-SFO
$47
7/1Mon
nonstopAlaska Airlines
1h 26mLAX-SFO
$50
6/8Sat
nonstopDelta
1h 20mLAX-SFO
$51
6/9Sun
nonstopDelta
1h 20mLAX-SFO
$66
6/9Sun
nonstopUnited Airlines
1h 30mLAX-SFO
$68
6/15Sat
nonstopAlaska Airlines
1h 26mLAX-SFO
$69
8/28Wed
nonstopUnited Airlines
3h 49mDFW-SFO
$76
7/31Wed
1 stopAmerican Airlines
6h 36mONT-SFO
$108

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Last minute flights to San Carlos

Last minute flight, train and bus deals

6/5Wed
nonstopFrontier
1h 28mONT-SFO
6/8Sat
nonstopFrontier
1h 23mSFO-ONT
$68
6/5Wed
nonstopFrontier
1h 24mLAX-SFO
6/26Wed
nonstopFrontier
1h 28mSFO-LAX
$70
6/3Mon
nonstopDelta
1h 24mLAX-SFO
6/4Tue
nonstopDelta
1h 40mSFO-LAX
$101
6/5Wed
nonstopUnited Airlines
1h 35mLAX-SFO
6/8Sat
nonstopUnited Airlines
1h 40mSFO-LAX
$119
6/5Wed
nonstopAlaska Airlines
1h 29mLAX-SFO
6/5Wed
multi-stopAlaska Airlines
5h 51mSFO-LAX
$120
6/1Sat
nonstopDelta
1h 23mLAX-SFO
6/4Tue
nonstopDelta
1h 40mSFO-LAX
$144
6/5Wed
nonstopAlaska Airlines
1h 29mLAX-SFO
6/26Wed
multi-stopAlaska Airlines
12h 10mSFO-LAX
$149
6/2Sun
nonstopUnited Airlines
1h 30mLAX-SFO
6/4Tue
nonstopUnited Airlines
1h 43mSFO-LAX
$167
6/1Sat
multi-stopAmerican Airlines
6h 02mLAX-SFO
6/4Tue
nonstopAmerican Airlines
1h 28mSFO-LAX
$174
6/1Sat
nonstopAmerican Airlines
1h 23mLAX-SFO
6/3Mon
multi-stopAmerican Airlines
6h 29mSFO-LAX
$217

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Flights to San Carlos