$39 Find Cheap Flights from San Francisco Bay Area to the United States

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Low seasonSeptember
Cheapest flight$39
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from San Francisco to Ontario

Flights from San Francisco Bay Area to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from San Francisco Bay Area to the United States 
Verified travelerFlew with Alaska AirlinesOAK-SEAJun 2025
Oakland is a nice small airport. Getting through security was a breeze with TSA precheck. We did have to stand in line for about 20minutes to drop bags as there were no agents at the counter. I had the most delicious crispy Al pastore taco near face 14
ElenaFlew with United AirlinesSFO-EWRJun 2025
Construction in the terminal so allow for extra time in SFO. Very easy finding luggage and getting outside at Newark. Also, this time, took the Express Bus into Manhattan - $25 is a good price, though the bus arrived 20 minutes after the scheduled time.
MaryannFlew with United AirlinesSFO-EWRMar 2025
Bring your own food with you. Airport and airline food is expensive and you WILL need something to eat on such a long flight.
Verified travelerFlew with Spirit AirlinesSJC-LASMar 2025
Check in online, bring a backpack as a personal item!
GeraldFlew with American AirlinesSJC-PHXMay 2025
SJC is physically a smaller airport. The gates are closer and TSA has shorter lines, They are not subject to weather delays as much as SFO. On the other hand SFO offers more flight options, both in the number of flights each airlines flies and the number of airlines serving the airport.
Verified travelerFlew with Alaska AirlinesSJC-HNLMay 2025
Get there early, you may have to walk to a different terminal
LawrenceFlew with United AirlinesSFO-HNLMay 2025
Get to your gate early!!! Very little seating at/near gates 19, 20, 21 and 22. The last couple of flights, American boarding (very different gates) has been very straightforward. The last time on United, boarding at gate 19 was bedlam. Really going to look hard before scheduling on United next time!!!
William DrewFlew with SouthwestSJC-HNLDec 2024
If you're flying from San Jose, arrive at the airport early. You never know how long the line at TSA will be. If you have time, the airport has well-designed facilities and reasonable priced restaurants. The Southwest ground staff is professional and will help you through the check-in and cattle call boarding process
SarahFlew with Alaska AirlinesSFO-BURFeb 2025
Go early in the day so if your flight is canceled, you might have better alternatives than I did when my 12:30 flight was canceled.
Verified travelerFlew with Alaska AirlinesSFO-AUSJan 2025
Use the lounge access at the discounted rate. It was very nice.
ericFlew with Air New ZealandSFO-BOSJan 2025
At least two hour connection Buy food pre-flight
Verified travelerFlew with Spirit AirlinesSJC-LAXNov 2024
Make sure to arrive at the airport early. On my recent flight from LAX to San Jose, the plane departed 20 minutes ahead of schedule. It seemed like all passengers were on board, and the aircraft was ready for takeoff.
ThuFlew with SouthwestOAK-HOUOct 2024
Oakland is a great airport to fly in and out of. Long term park is very reasonable.
GeraldFlew with Alaska AirlinesSFO-ORDOct 2024
Book a flight as early in the day as possible to avoid incoming flight delays.
MohammadFlew with Spirit AirlinesSJC-BURSep 2024
The TSA process is very short and quick. No need to come 2 hours ahead.
Verified travelerFlew with Alaska AirlinesSTS-SANOct 2024
An hour before flight was enough time for departing from Santa Rosa. (I doubt anyone is at the airport and working at 4:30am).
JohnFlew with SouthwestOAK-LASNov 2024
The transit through the Las Vegas airport required such a long walk. Be sure your carry on luggage has wheels.
StevenFlew with SouthwestSFO-LASOct 2024
Take later flight out side of the hotel check in time. Lines are terrible. Travel light.
FSFlew with Hawaiian AirlinesOAK-HNLOct 2024
Bring your own headset, else you need to pay for some, if you need them.
William DrewFlew with Alaska AirlinesSFO-HNLNov 2024
Arrive at least two hours before your flight.
JamesFlew with Alaska AirlinesSJC-SANJun 2024
It’s pretty simple there. It’s one of the better airports.TSA has never been a problem for me there it moves and is mostly efficient… I was happy that we didn’t have to takeoff our shoes, which surprised me. They’re always seems to be long walk to the gates coming and going not sure why that is
BrookeFlew with DeltaSFO-MSPJun 2024
Book early for the best price. Upgrade if you can. Sun country is a more consistent experience but delta has better in-flight entertainment.
IreneFlew with SouthwestSFO-LAXJun 2024
Arrive a least 1 hour before boarding if you’re checking bags. Light layers due weather variation
JohnjimyFlew with ANASFO-LAXAug 2024
Layover from NRT(JPN), to SFO (US), to LAX(US) Easy if you are a United States Citizen, when you go to US Border & Customs, bring your Passport if you arrive Internationally. Remember to pick up your check baggage before moving into domestic flights, as they will check the tag for the plane you are boarding in. (They will check your baggage again). Bring your ID/DL (Real-ID COMPLIANT) with you to pass security/TSA, passport works too. SFO is pretty strict as well as LAX.
Verified travelerFlew with Alaska AirlinesSFO-SEAJul 2024
It is a very crowded flight, so I advice to choose seats in advance. We didn’t have that option and that was the only complaint I’d have because they put us in the middle seats and we both wanted aisle seats. My sister was able to switch but I wasn’t. She was switched to the back, almost to the last row.
Verified travelerFlew with Alaska AirlinesSFO-PSPJun 2024
SFO ~ most convenient People should prepare themselves for cold temperature inside the cabin, bring coat/jacket and food in case flight is delayed.
NancyFlew with United AirlinesSFO-ATLAug 2024
Bring your own food, shorten your legs by about 4-5" and bring your own entertainment that is not relying on any internet.
FatimaFlew with FrontierSFO-LAXJun 2024
Frontier requires 3hr preflight check in even on domestic flights
RobertFlew with Alaska AirlinesSFO-EWRJun 2024
Bring some food on board for the flight
JulieFlew with SouthwestSFO-LAXJun 2024
Avoid flying into LAX. It’s a nightmare. Baggage claim took 40 minutes. And then the shuttle to the car rental place took an hour because there are two shuttles. The first is a local bus that makes a stop at every seven terminals and then it takes you to another place where you have to wait for your smaller shuttle to the car rental place.
BryanFlew with American AirlinesSFO-DFWAug 2024
Don't count on wheelchair assistance, particularly if you have a short connection and different terminals. DFW is HUGE and the assistance program is a disaster.
Verified travelerFlew with United AirlinesSFO-DENMar 2024
Get TSA PRE and CLEAR. Life will be easy.
Verified travelerFlew with Alaska AirlinesSTS-PDXMay 2024
If you fly in the afternoon, get seats n the right side of the plan because the glare of the sun is pretty bad
JoonwonFlew with Alaska AirlinesSJC-SANApr 2024
The airplane is a quite small one, compared to the regular size, so pls be ready for some restrictions on carry on bags.
KateFlew with Alaska AirlinesSFO-PSPApr 2024
Fly in the morning when it’s not windy.
SidFlew with United AirlinesSFO-BZNJan 2024
wear layers as you never know if you will be cold or hot (with non-functional vents).
Verified travelerFlew with Alaska AirlinesSTS-SNAFeb 2024
Book directly from the airline and/or get refundable tickets.

FAQs for booking flights from San Francisco Bay Area to the United States

  • How does KAYAK find such low prices on flights from San Francisco Bay Area to the United States?

    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 San Francisco Bay Area to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco Bay Area to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco Bay Area to the United States 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 San Francisco Bay Area to the United States?

    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 from San Francisco Bay Area to the United States 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 from San Francisco Bay Area to the United States?

    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 from San Francisco Bay Area to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines fly most frequently to the United States?

    San Francisco Bay Area and United States are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (1,696 flights per week), Air New Zealand (1,165 flights per week), and Virgin Australia (956 flights per week).

  • How many airports are there in the United States?

    There are 581 airports in the United States. The busiest airport is Hartsfield-Jackson Atlanta Airport (ATL), with 8% of all flights arriving there.

  • Which is the cheapest airport to fly into in the United States?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United States is San Diego Airport (SAN), with an average flight price of $130.

  • What is the cheapest day to fly to the United States?

    Based on KAYAK data, the cheapest day to fly to the United States is Wednesday where round-trip tickets can be as cheap as $434. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $560 on average.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the evening, when round-trip flights cost $386 on average. Morning departures are around 32% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is $511.

  • What is the cheapest flight to the United States?

    The cheapest ticket to the United States from San Francisco Bay Area found in the last 72 hours was to Las Vegas, at $60 round-trip. The most popular route is San Francisco (SFO) to Newark Airport (EWR) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $233.

  • What is the cheapest month to fly from San Francisco Bay Area to the United States?

    The cheapest month for flights from San Francisco Bay Area to the United States is May, when tickets cost $235 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $558 and $537 respectively.

  • How far in advance should I book a flight from San Francisco Bay Area to the United States?

    To get a below average price on the flight from San Francisco Bay Area to the United States, you should book around 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

  • How many cities have direct flights to the United States?

    From San Francisco Bay Area, there are direct flights to the United States from 2 cities. The city with the most direct flights is San Francisco, with 11,609 direct flights each week.

  • How many direct flights to the United States are there each day?

    There are around 1,978 direct flights from within San Francisco Bay Area to the United States every day. Most flights (46%) depart in the morning.

  • How many direct flights to the United States are there each week?

    Each week there are around 13,845 direct flights from within San Francisco Bay Area to the United States. The most common day for departures is Sunday, with 17% of flights taking off on this day.

  • How long is the flight to the United States?

    An average nonstop flight from San Francisco Bay Area to the United States takes 3h 36m, covering a distance of 1524 miles. The shortest route is San Francisco (SFO) to Burbank (BUR) with an average flight time of 1h 14m.

  • How many long-haul flights are there to the United States each week?

    Each week, there are 4,266 medium-haul flights (3-6 hour flight duration) and 9,579 short-haul flights (up to 3 hour flight duration) to the United States. There aren't any long-haul flights (6-12 hour flight duration).

  • What are the most popular destinations in the United States?

    Based on KAYAK flight searches, the most popular destination is New York (19% of total searches to the United States). The next most popular destinations are Las Vegas (9%) and Los Angeles (8%). Searches for flights to Seattle (5%), to Dallas (5%) and to Honolulu (5%) are also popular.

Reviews of the top 5 airlines serving from San Francisco Bay Area to the United States

 
Need help choosing which airline to fly with from San Francisco Bay Area to the United States? 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 11237 reviews
7.0Entertainment
7.8Comfort
8.1Boarding
7.1Food
8.5Crew
Airline reviews

If they actually let me fly. I was rerouted to United and there was no Alaska airlines reps at all. Then the lady who worked the delta counter told me to go away and figure things out myself. Horrible experience.

2.0 MediocreAnonymous, Nov 2025SBA - PDX
Read more Alaska Airlines reviews

If they actually let me fly. I was rerouted to United and there was no Alaska airlines reps at all. Then the lady who worked the delta counter told me to go away and figure things out myself. Horrible experience.

I recently traveled with my service animal, and before boarding, a gate agent kindly arranged for me to have an empty seat next to me to give my dog more space. However, once on board, a male crew member spoke to me in a rude and loud tone, insisting my dog stay on the floor or my lap—even after I explained what the gate agent had approved. His tone and behavior were unprofessional and made me feel uncomfortable in front of other passengers. I understand and respect airline policies, but I would appreciate if this could be reviewed to ensure better awareness and sensitivity toward passengers traveling with service animals. Thank you for your understanding.

Check in went pretty well and you didn't lose my bag. After I got a drink from the drink cart they charged me for it, and at the crazy overpriced airport rates. Never had that happen before, is that an american thing? what madness.

Kayak I had marked one carry on, one checked bag. Yet when it completed the purchase marked it as no carry on. Fail on kayaks side! Then extended flight delayed due to computer issues. Crew of the plane did awesome but fail on both kayak and alaskan

In both halves of the trip (going and returning) there were problems. Not exactly Alaska's fault, but still really difficult. Outgoing flight was canceled and rebooked twice due to a total ground stop of all Alaska's flights. This required me to change airports with minimal notice and I almost missed my flight transferring to the other airport (which was roughly an hour and a half away). On the return, the first leg was delayed by an hour, and the second leg was delayed by nearly 3 hours. This was a rough set of flights and the communication about all of these changes was minimal. Crew did their best however, so no fault there. Other thing to remember is there is no food on Alaska flights unless you pre-order. Take that into account when you choose airlines.

Check in online didn't accept my confirmation number so i could only check in with assistance at the airport and ended up with s creepy middle seat.

I was delayed several times. Missed a very important event. The airline only provided a $12 voucher after being delayed 3 times.

It was the most expensive Alaska Airlines ticket I’ve ever purchased. I had a middle seat with no legroom or space compared to any other middle seat I’ve hadThere was a silver box under the seat that took up 70% of my legroom on the most narrow 737 max the crew flat out would not help they would not help with bags they would not help with garbage there was no coffee,It was definitely not one of my better experiences on Alaska.

Sitting on the ground for 2 hours waiting for a gate wasn't fun.

It was a great experience, friendly staff and good snacks

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Premium Plus is a really good idea for longer flights

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

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