$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 4/5. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to the United States

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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 Yorknonstop$219
Orlando
Orlando1 stop$268
Los Angeles
Los Angelesnonstop$86
Las Vegas
Las Vegasnonstop$87
Chicago
Chicago1 stop$230
Miami
Miami1 stop$253
Boston
Boston1 stop$219
Denver
Denver1 stop$103
Fort Lauderdale
Fort Lauderdalenonstop$215
Seattle
Seattlenonstop$127
Atlanta
Atlantanonstop$177
Dallas
Dallas1 stop$206
Phoenix
Phoenixnonstop$113
Tampa
Tampa1 stop$296
Houston
Houstonnonstop$269
Honolulu
Honolulu1 stop$252
San Diego
San Diegononstop$115
Philadelphia
Philadelphianonstop$289
New York
New Yorknonstop$219
Orlando
Orlando1 stop$268
Los Angeles
Los Angelesnonstop$86
Las Vegas
Las Vegasnonstop$87
Chicago
Chicago1 stop$230
Miami
Miami1 stop$253
Boston
Boston1 stop$219
Denver
Denver1 stop$103
Fort Lauderdale
Fort Lauderdalenonstop$215
Seattle
Seattlenonstop$127
Atlanta
Atlantanonstop$177
Dallas
Dallas1 stop$206
Phoenix
Phoenixnonstop$113
Tampa
Tampa1 stop$296
Houston
Houstonnonstop$269
Honolulu
Honolulu1 stop$252
San Diego
San Diegononstop$115
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, Mar 14 - Wed, Mar 18
Frontier Logo
8:09 pm - 9:39 pm
SFO
-
LAX
1h 30mnonstop
Frontier Logo
8:01 pm - 9:38 pm
LAX
-
SFO
1h 37mnonstop
$86Frontier
Mon, Mar 30 - Tue, Mar 31
Multiple Airlines Logo
10:48 pm - 12:29 am
SFO
-
LAS
1h 41mnonstop
Multiple Airlines Logo
9:43 pm - 11:25 pm
LAS
-
SFO
1h 42mnonstop
$87Multiple Airlines
Tue, Apr 7 - Sat, Apr 11
Frontier Logo
8:14 pm - 9:56 pm
SFO
-
LAX
1h 42mnonstop
Frontier Logo
7:34 pm - 9:13 pm
LAX
-
SFO
1h 39mnonstop
$87Frontier
Tue, Mar 17 - Sat, Mar 21
Frontier Logo
7:32 pm - 9:14 pm
SFO
-
LAS
1h 42mnonstop
Frontier Logo
7:00 am - 8:49 am
LAS
-
SFO
1h 49mnonstop
$88Frontier
Tue, Mar 17 - Tue, Mar 17
Alaska Airlines Logo
8:42 am - 11:03 am
SFO
-
SEA
2h 21mnonstop
Alaska Airlines Logo
2:43 pm - 11:44 pm
SEA
-
SFO
9h 01m
1 stop
$127Alaska Airlines
Wed, Apr 22 - Wed, Apr 29
Alaska Airlines Logo
7:00 am - 9:17 am
SFO
-
SEA
2h 17mnonstop
Alaska Airlines Logo
8:05 pm - 10:28 pm
SEA
-
SFO
2h 23mnonstop
$130Alaska Airlines
Wed, Mar 25 - Wed, Apr 1
Delta Logo
6:00 am - 8:16 am
SFO
-
SEA
2h 16mnonstop
Delta Logo
7:25 am - 9:51 am
SEA
-
SFO
2h 26mnonstop
$137Delta
Wed, Apr 1 - Mon, Apr 6
Delta Logo
8:55 am - 2:41 pm
SFO
-
SEA
5h 46m
1 stop
Delta Logo
9:45 pm - 11:57 pm
SEA
-
SFO
2h 12mnonstop
$147Delta
Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
4:22 pm - 6:16 pm
SFO
-
SNA
1h 54mnonstop
United Airlines Logo
2:38 pm - 4:03 pm
SNA
-
SFO
1h 25mnonstop
$178United Airlines
Sat, May 30 - Tue, Jun 2
American Airlines Logo
5:30 am - 11:12 am
SFO
-
DFW
3h 42mnonstop
American Airlines Logo
5:32 pm - 7:20 pm
DFW
-
SFO
3h 48mnonstop
$211American Airlines
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 Las Vegas, at $80 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 $86.

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 $377, 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 January, when tickets cost $307 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $477 and $437 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 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$39
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from San Francisco to Las Vegas

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 
GregFlew with Alaska Airlines
SFO
-
BUR
Jan 2026
Upgrade to first class for free checked bags, priority boarding and half off the SFO lounge for not that much extra
PhilipFlew with Alaska Airlines
SFO
-
SAN
Feb 2026
Taking a flight with a smaller plane was pleasant, fewer passengers and.easier boarding and disembarking.
Verified travelerFlew with Alaska Airlines
SFO
-
AUS
Dec 2025
Bid on an upgrade seat if you can, I was pleased with my upgrade.
MitchellFlew with United Airlines
SFO
-
RDU
Jan 2026
United had a direct flight to RDU - worked out well just need to manage food timing as arriving in RDU after 9 PM, very limited availability for healthy food. rental car transfer at RDU went very smoothly
ElenaFlew with United Airlines
SFO
-
EWR
Jun 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 Airlines
SFO
-
EWR
Mar 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 Airlines
SFO
-
HNL
May 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 Airlines
SFO
-
BUR
Feb 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 Airlines
SFO
-
AUS
Jan 2025
Use the lounge access at the discounted rate. It was very nice.
ericFlew with Air New Zealand
SFO
-
BOS
Jan 2025
At least two hour connection Buy food pre-flight
GeraldFlew with Alaska Airlines
SFO
-
ORD
Oct 2024
Book a flight as early in the day as possible to avoid incoming flight delays.
StevenFlew with Southwest
SFO
-
LAS
Oct 2024
Take later flight out side of the hotel check in time. Lines are terrible. Travel light.
William DrewFlew with Alaska Airlines
SFO
-
HNL
Nov 2024
Arrive at least two hours before your flight.
BrookeFlew with Delta
SFO
-
MSP
Jun 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 Southwest
SFO
-
LAX
Jun 2024
Arrive a least 1 hour before boarding if you’re checking bags. Light layers due weather variation
JohnjimyFlew with ANA
SFO
-
LAX
Aug 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 Airlines
SFO
-
SEA
Jul 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 Airlines
SFO
-
PSP
Jun 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 Airlines
SFO
-
ATL
Aug 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 Frontier
SFO
-
LAX
Jun 2024
Frontier requires 3hr preflight check in even on domestic flights
RobertFlew with Alaska Airlines
SFO
-
EWR
Jun 2024
Bring some food on board for the flight
JulieFlew with Southwest
SFO
-
LAX
Jun 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 Airlines
SFO
-
DFW
Aug 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 Airlines
SFO
-
DEN
Mar 2024
Get TSA PRE and CLEAR. Life will be easy.
KateFlew with Alaska Airlines
SFO
-
PSP
Apr 2024
Fly in the morning when it’s not windy.
SidFlew with United Airlines
SFO
-
BZN
Jan 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 $385 on average. Morning departures are around 26% 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 $486.

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 $181 one-way - $302 round-trip; Las Vegas $84 one-way - $162 round-trip; Los Angeles $112 one-way - $188 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 11948 reviews
7.1Food
8.1Boarding
8.5Crew
7.0Entertainment
7.8Comfort
Airline reviews

had to be rerouted due to a medical emergency onboard. Alaska crew treated the patient with utmost respect and continued to keep the passengers updated the entire way through, which I appreciate. But it took 4 hours from landing until we were able to be airborne again, causing us to not get into SFO until ~2 am. I understand it was a tough situation for everyone, but that was an indecent wait.

2.0 MediocreAnonymous, Feb 2026
SFO - RDM
Read more Alaska Airlines reviews

had to be rerouted due to a medical emergency onboard. Alaska crew treated the patient with utmost respect and continued to keep the passengers updated the entire way through, which I appreciate. But it took 4 hours from landing until we were able to be airborne again, causing us to not get into SFO until ~2 am. I understand it was a tough situation for everyone, but that was an indecent wait.

I love Alaska! We arrived on the later side without seat assignments only to find the had oversold the flight by 1. The attendants worked extra hard to find a way for our party of 7 to stay together and we made it on the flight! Loved the free WiFi also!

Delay for switching planes. Then delay after delay (mechanical) after boarding so that we were almost 3 hrs late, getting in at 230am. Crew was good.

The he whole flight was very smooth on every aspects.

I paid for wifi and it never worked... it was miserable. I couldn't access my shared files to work on the plane, it didn't work on my phone. I paid for nothing but frustration and continual refreshing, hoping it would work

The stewardess are very nice and pleasant, Someone onboard had a medical attention, and they attended that person non-stop all throughout the flight, and yet, did not forget to serve and help other passengers.

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

The flight was excellent and very friendly and helpful staff. Will travel again and recommend to friends. Thank you

Did not have In flight service on my round trip due to turbulence. I did not partake in In flight entertainment. Flight descending into LAX was very turbulent. It would have been nice if the pilot communicated with us during that rough descent into LAX to ease the minds of some of us more nervous flyers.

They canceled my flight with only a couple hours before checking in at the airport and offered no alternatives to get home.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

The flight crew where really good. Better then the crew from BNE to SFO

left on time, reasonable boarding process arrived early luggage came out quickly

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Premium Plus is a really good idea for longer flights

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

The flight was really crowded. Flight attendants were just ok.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

It would be nice to have some low carb options in the snacks.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

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.

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

Information on your arrival and departure airports