$29 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 8/7. 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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Best United States Flight Deals from San Francisco

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New Yorknonstop$178
Los Angeles
Los Angelesnonstop$77
Orlando
Orlandononstop$178
Las Vegas
Las Vegasnonstop$70
Miami
Miaminonstop$199
Chicago
Chicagononstop$179
Boston
Bostonnonstop$232
Denver
Denvernonstop$95
Seattle
Seattle1 stop$141
Fort Lauderdale
Fort Lauderdalenonstop$199
Atlanta
Atlantanonstop$168
Dallas
Dallasnonstop$156
Phoenix
Phoenixnonstop$79
Tampa
Tampa1 stop$200
Houston
Houston1 stop$200
Honolulu
Honolulu1 stop$278
San Diego
San Diegononstop$57
Philadelphia
Philadelphia1 stop$200
New York
New Yorknonstop$178
Los Angeles
Los Angelesnonstop$77
Orlando
Orlandononstop$178
Las Vegas
Las Vegasnonstop$70
Miami
Miaminonstop$199
Chicago
Chicagononstop$179
Boston
Bostonnonstop$232
Denver
Denvernonstop$95
Seattle
Seattle1 stop$141
Fort Lauderdale
Fort Lauderdalenonstop$199
Atlanta
Atlantanonstop$168
Dallas
Dallasnonstop$156
Phoenix
Phoenixnonstop$79
Tampa
Tampa1 stop$200
Houston
Houston1 stop$200
Honolulu
Honolulu1 stop$278
San Diego
San Diegononstop$57
Philadelphia
Philadelphia1 stop$200

Cheap Flights from San Francisco to the United States

 
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

Wed, Jul 16 - Tue, Jul 22
United Airlines Logo
4:16 pm - 5:43 pmSFO-ONT
1h 27mnonstop
United Airlines Logo
6:10 am - 7:37 amONT-SFO
1h 27mnonstop
$57United Airlines
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Sun, Jul 13 - Wed, Jul 23
Frontier Logo
5:45 am - 7:26 amSFO-LAS
1h 41mnonstop
Frontier Logo
7:33 pm - 9:21 pmLAS-SFO
1h 48mnonstop
$70Frontier
Find Deal
Mon, Jul 14 - Tue, Jul 15
Frontier Logo
4:31 pm - 6:17 pmSFO-LAS
1h 46mnonstop
Frontier Logo
10:25 am - 12:15 pmLAS-SFO
1h 50mnonstop
$71Frontier
Find Deal
Mon, Oct 13 - Thu, Oct 16
Alaska Airlines Logo
3:51 pm - 5:33 pmSFO-LAS
1h 42mnonstop
Alaska Airlines Logo
8:27 pm - 10:06 pmLAS-SFO
1h 39mnonstop
$89Alaska Airlines
Find Deal
Mon, Jun 30 - Wed, Jul 2
United Airlines Logo
9:25 pm - 10:52 pmSFO-ONT
1h 27mnonstop
United Airlines Logo
6:10 am - 7:37 amONT-SFO
1h 27mnonstop
$91United Airlines
Find Deal
Sun, Aug 3 - Tue, Aug 12
Alaska Airlines Logo
6:40 pm - 8:25 pmSFO-LAS
1h 45mnonstop
Alaska Airlines Logo
8:30 am - 10:10 amLAS-SFO
1h 40mnonstop
$97Alaska Airlines
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Fri, Sep 5 - Sat, Sep 6
Delta Logo
5:55 am - 7:24 amSFO-LAX
1h 29mnonstop
Delta Logo
6:30 am - 7:51 amLAX-SFO
1h 21mnonstop
$107Delta
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Sat, Aug 16 - Wed, Aug 20
Delta Logo
6:58 pm - 8:30 pmSFO-LAX
1h 32mnonstop
Delta Logo
1:30 pm - 2:50 pmLAX-SFO
1h 20mnonstop
$112Delta
Find Deal
Sat, Jul 19 - Mon, Jul 21
American Airlines Logo
6:30 am - 7:55 amSFO-LAX
1h 25mnonstop
American Airlines Logo
9:13 pm - 10:37 pmLAX-SFO
1h 24mnonstop
$133American Airlines
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Sun, Jul 27 - Tue, Jul 29
American Airlines Logo
6:30 am - 11:51 amSFO-LAS
5h 21m1 stop
American Airlines Logo
6:20 am - 12:49 pmLAS-SFO
6h 29m1 stop
$159American Airlines
Find Deal
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from San Francisco to the United States.

The cheapest ticket to the United States from San Francisco found in the last 72 hours was to Las Vegas, at $85 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 $94.

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $767 on average.

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 $319 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $505 and $483 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. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$29
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 5% 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 $406 on average. Morning departures are around 34% 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 $544.

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 $205 one-way - $371 round-trip; Los Angeles $94 one-way - $169 round-trip; Chicago $151 one-way - $290 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 10000 reviews
7.8Comfort
8.1Boarding
7.1Food
8.5Crew
7.1Entertainment
Airline reviews

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

2.0 MediocreDarrilynn, Jun 2025SFO - HNL
Read more Alaska Airlines reviews

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

Great, overall. Thicker seat cushion would be nice. My butt hurt the whole flight.

Thicker seat cushion would be nice. My butt hurt the whole flight.

All good! No entertainment on this new plane yet but ok for this short flight. Great on time flight! Thanks

No non-alcoholic drinks available except water and small apple juice cans.

The flight was delayed over two and a half hours thus causing me to miss my best friend’s funeral. All because the flight crew had to get more rest. That was the reason stated. I understand however very unfortunate. Glad everyone is well rested and resting in peace.

All good except both the outbound and return flights were delayed about 1 1/2 hrs.

Not great. My flight was canceled due to a mechanical problem and I could not get rebooked for the same day. I needed to get to my destination yesterday, not today. I was able to book with another airline but it was a layover and ultimately a 1 hour flight took me 12 hours. Normally I like Alaska much more than Southwest, but Southwest came through with a not terrible price for same day.

The plane was late arriving. The Alaska people did a great job of turning it around quickly and getting us off. We took off about 35 minutes after it reached the gate.

I liked the flight attendant named Tyler. He was charismatic and genuine. I like the pilot in my second flight, he was considerate to everyone’s feelings. I liked the people I sat beside. I like the plane size. I like Alaska airlines

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

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

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.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

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

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

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

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