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

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to the United States departing on 12/9. 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.
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Cheap Flights from San Francisco to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop$236
Orlando
Orlando1 stop$240
Los Angeles
Los Angelesnonstop$76
Las Vegas
Las Vegasnonstop$83
Miami
Miami2 stops$236
Chicago
Chicago2 stops$242
Boston
Bostonnonstop$223
Denver
Denver1 stop$110
Seattle
Seattle1 stop$135
Fort Lauderdale
Fort Lauderdale1 stop$194
Atlanta
Atlantanonstop$169
Dallas
Dallas1 stop$154
Phoenix
Phoenixnonstop$106
Tampa
Tampa1 stop$291
Houston
Houston1 stop$207
Honolulu
Honolulu1 stop$332
San Diego
San Diegononstop$77
Philadelphia
Philadelphianonstop$289
New York
New York1 stop$236
Orlando
Orlando1 stop$240
Los Angeles
Los Angelesnonstop$76
Las Vegas
Las Vegasnonstop$83
Miami
Miami2 stops$236
Chicago
Chicago2 stops$242
Boston
Bostonnonstop$223
Denver
Denver1 stop$110
Seattle
Seattle1 stop$135
Fort Lauderdale
Fort Lauderdale1 stop$194
Atlanta
Atlantanonstop$169
Dallas
Dallas1 stop$154
Phoenix
Phoenixnonstop$106
Tampa
Tampa1 stop$291
Houston
Houston1 stop$207
Honolulu
Honolulu1 stop$332
San Diego
San Diegononstop$77
Philadelphia
Philadelphianonstop$289

Book Cheap San Francisco to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to the United States

Sat, Nov 1 - Sat, Nov 22
Frontier Logo
6:28 pm - 8:00 pmSFO-LAX
1h 32mnonstop
Frontier Logo
9:12 am - 10:43 amLAX-SFO
1h 31mnonstop
$76Frontier
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Thu, Nov 6 - Mon, Nov 10
Frontier Logo
10:23 am - 11:54 amSFO-LAX
1h 31mnonstop
Frontier Logo
7:48 pm - 4:43 pmLAX-SFO
20h 55m1 stop
$77Frontier
Find Deal
Wed, Feb 4 - Fri, Feb 6
Alaska Airlines Logo
7:55 pm - 9:38 pmSFO-LAS
1h 43mnonstop
Alaska Airlines Logo
3:35 pm - 5:18 pmLAS-SFO
1h 43mnonstop
$97Alaska Airlines
Find Deal
Mon, Nov 24 - Tue, Dec 2
Alaska Airlines Logo
10:18 pm - 11:59 pmSFO-LAS
1h 41mnonstop
Alaska Airlines Logo
3:39 pm - 5:24 pmLAS-SFO
1h 45mnonstop
$117Alaska Airlines
Find Deal
Thu, Nov 20 - Thu, Nov 20
Delta Logo
6:00 am - 7:31 amSFO-LAX
1h 31mnonstop
Delta Logo
7:02 pm - 8:26 pmLAX-SFO
1h 24mnonstop
$117Delta
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Thu, Nov 6 - Mon, Nov 10
Delta Logo
10:40 am - 12:12 pmSFO-LAX
1h 32mnonstop
Delta Logo
6:00 am - 7:30 amLAX-SFO
1h 30mnonstop
$118Delta
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Mon, Dec 22 - Thu, Dec 25
United Airlines Logo
11:15 pm - 12:57 amSFO-LAS
1h 42mnonstop
United Airlines Logo
7:10 pm - 12:26 amLAS-SFO
5h 16m1 stop
$127United Airlines
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Wed, Nov 12 - Sat, Nov 15
United Airlines Logo
11:15 am - 12:37 pmSFO-ONT
1h 22mnonstop
United Airlines Logo
6:38 pm - 8:02 pmONT-SFO
1h 24mnonstop
$137United Airlines
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Wed, Nov 12 - Sat, Nov 15
American Airlines Logo
6:00 am - 4:28 pmSFO-LGA
7h 28m1 stop
American Airlines Logo
9:00 am - 3:03 pmLGA-SFO
9h 03m1 stop
$255American Airlines
Find Deal
Tue, Dec 2 - Fri, Dec 5
American Airlines Logo
7:12 am - 9:30 pmSFO-JFK
11h 18m1 stop
American Airlines Logo
6:30 am - 10:07 amJFK-SFO
6h 37mnonstop
$275American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for San Francisco to the United States flights

Get data-powered insights and trends into flights from San Francisco to the United States to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Francisco to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from San Francisco found in the last 72 hours was to Los Angeles, at $79 round-trip. The most popular route is from San Francisco (SFO) to Los Angeles (LAX), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $79.

Can I save money by flying with a layover from San Francisco to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $369, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to the United States, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to the United States is February, when tickets cost $322 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $514 and $447 respectively.

What’s the cheapest day of the week to fly from San Francisco to United States?

The average price of all round-trip flights from San Francisco to the United States clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to United States on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from San Francisco to United States. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to the United States, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to the United States, you should book around 3 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$39
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from San Francisco to Ontario

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

Insights shared by verified travelers who flew the route from San Francisco to the United States 
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.
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!!!
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
GeraldFlew with Alaska AirlinesSFO-ORDOct 2024
Book a flight as early in the day as possible to avoid incoming flight delays.
StevenFlew with SouthwestSFO-LASOct 2024
Take later flight out side of the hotel check in time. Lines are terrible. Travel light.
William DrewFlew with Alaska AirlinesSFO-HNLNov 2024
Arrive at least two hours before your flight.
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.
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).

FAQs - booking United States flights

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco 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 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 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 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 to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • 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 $391 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 $515.

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from San Francisco to the following destinations at these prices or less: New York $191 one-way - $313 round-trip; Las Vegas $81 one-way - $146 round-trip; Los Angeles $102 one-way - $180 round-trip

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

 
Need help choosing which airline to fly with from San Francisco 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 11100 reviews
8.5Crew
8.1Boarding
7.0Entertainment
7.1Food
7.8Comfort
Airline reviews

I still in San Francisco😡the flight has delay and lm not sure l can back to Seattle or not😡lm here from 7.30pm and still waiting😡 l never will use of Kayak.

2.0 MediocreZhila, Oct 2025SFO - PAE
Read more Alaska Airlines reviews

I still in San Francisco😡the flight has delay and lm not sure l can back to Seattle or not😡lm here from 7.30pm and still waiting😡 l never will use of Kayak.

On time boarding, take off and landing. Will fly again with Alaska Airlines.

Flight was smooth, pleasant passengers and crew. Enjoyed the experience

Flight attendant was awful, I felt second hand embarrassment with every one of her interactions with people onboard. She was so incredibly rude every chance she got

Great flight - efficient and cheerful team on board, at SFO gate. Also, PAE (Paine Field, Everett, WA) is a great little airport to fly out or in to!

I was sitting towards back of plane and the flight attendants I thought spoke unusually loud for an evening flight. They chatted and chatted all night long and it seemed odd to me that they didn’t try to lower their voices. It is annoying as a passenger to hear all their conversations.

Had to pay $8 for internet wasnt cool, no tv’s, had to use phone to watch movies, no food choices seemed available unless u ordered in advance maybe I'm wrong about that but seemed that way, no snacks were served. Seemed a very bare bones flight. But it was on time and safe so that was good

We were singled out, greeted and helped with check-in at the busy airport. They offered to take our bags there and gave no fuss when we said they were carry-on. With United just last week I had to put up a fight just to get onto the flight with my one authorized carry-on.

boarding was late worst was going back LAX to SFO delayed not once ? but TWICE😡I was at the airport practically almost 5 hours of previous time , very inconvenient! i would have spend longer time with family , I was wanting to avoid TSA line? but it just got me to spend unwanted time @ d airport

Plane boarded and left on time or very close to the stated departure. Arrived on time. Staff was subdued. Could not hear the flight attendant too well. No announcement from the pilot which is always nice. Biggest complaint absolutely no little snacks! But the important thing is we left and arrived on time and we survived.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

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.

The best airline I have ever travel , really good customer service, attention and service !!

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

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

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.

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Was not able to watch most shows on the entertainment site. They would not load

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

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….

Everything you need to know for your flight from San Francisco to the United States

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