ATH - SFO

Find cheap flights from Athens to San Francisco

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Athens to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Athens to San Francisco.
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Flight Deals

Cheap Flights from Athens to San Francisco (ATH-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Athens to San Francisco 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 Athens to San Francisco

Multiple Airlines Logo
ATH-SFO
17581 kmmulti-stop
Multiple Airlines Logo
SFO-ATH
17581 kmmulti-stop
Multiple Airlines
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Everything you should know

When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 12% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
Multiple Airlines
Fri 31.10
ATH - SFO • multi-stop
Cheapest one-way
Multiple Airlines
Fri 31.10
ATH - SFO • multi-stop
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Booking Insights

KAYAK's insights & trends for Athens to San Francisco flights

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

What is the cheapest month to fly from Athens to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Athens to San Francisco, 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 Athens to San Francisco is February, where tickets cost ₪2,587 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is ₪3,530 and ₪3,055 respectively.

How far in advance should I book a flight from Athens to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Athens to San Francisco, 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 Athens to San Francisco, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonSeptember
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 7% lower on average.

When to book flights from Athens to San Francisco

Are your dates flexible? Find out the best times to travel from Athens to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Athens to San Francisco

  • What are the most popular layovers for flights from Athens to San Francisco?

    O'Hare International Airport (ORD) and Philadelphia Airport (PHL) are two of the most frequent layover airports for connecting flights from Athens to San Francisco. If you are traveling with American Airlines from ATH, your layover airport will be PHL before you continue to SFO or SJC. However, if you are traveling British Airways out of ATH, your layover airport will be ORD.

  • Which other cities can I connect to from San Francisco International Airport?

    San Francisco International Airport serves a variety of Californian cities in addition to being the entry point to San Francisco, such as Daly City, Tiburon, and Alameda. Using a rental car, you may reach these cities from SFO with ease.

  • Can I upgrade to first class if I book economy with any of the airlines flying from Athens to San Francisco?

    By taking advantage of the economy to first class upgrade deal provided by United Airlines, British Airways, and American Airlines, you can travel in first class from Athens to San Francisco at a cheaper price. These airlines allow passengers who have booked economy to upgrade to first class by adding a modest sum to their ticket as part of this deal.

  • Which airline (s) flying from Athens to San Francisco are more eco-friendly?

    If you wish to take an environmentally friendly airline on your flight from Athens to San Francisco, book Air France. The goal of Air France's carbon reduction initiatives, which is to equip all of its aircraft with fuel-efficient engines, has significantly improved the airline's environmental friendliness.

  • Which aircraft models fly most regularly from Athens to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Athens to San Francisco?

    Star Alliance is the only airline alliance operating flights between Athens and San Francisco.

  • Which is the best airline for flights from Athens to San Francisco, United Airlines or Turkish Airlines?

    The two airlines most popular with KAYAK users for flights from Athens to San Francisco are United Airlines and Turkish Airlines. With an average price for the route of ₪3,340 and an overall rating of 7.4, United Airlines is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of ₪2,805 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Athens to San Francisco?

    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 Athens to San Francisco.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Athens with another airline.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Athens up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Athens to San Francisco

  • San Francisco International Airport (SFO) serves as the destination airport for the majority of flights from Athens and San Francisco, although San Jose Mineta International Airport (SJC) is another option you might take into consideration. If you fly the less popular route, which has SJC as the destination airport, you'll have a better chance of finding lower airline offers.
  • Currently, there are no nonstop flights from Athens to San Francisco - all flights make one or two stops along the way. The primary airports for departure and arrival are San Francisco International Airport (SFO) and Athens International Airport (ATH).
  • Booking United Airlines, whose hub is SFO, has a number of advantages. One of the most important is that, because San Francisco flights leave Athens often throughout the day, it is possible to book one at any time of day.
  • All airlines that fly from Athens to San Francisco have pet-friendly regulations, making it simple for animal lovers to bring their four-legged companions along. Among the airlines along this route, United Airlines has some of the lowest charges when traveling with pets. If you book Air France, you will enjoy flying with your pet in the cabin provided they don’t exceed 17 lbs.
  • If you're taking your kids on a flight from Athens to San Francisco, you'll need an airline that offers a wide selection of kid-friendly features. The two airlines with the most kid-friendly amenities are American Airlines and British Airways. When flying with one of these airlines, you can ask for special diet or kid-friendly meals. To make things more convenient, people who might need special diet or kid-friendly meals must let the airline know when they book the ticket.

Reviews of the top airlines flying from Athens to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Athens to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Athens to San Francisco? 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.
7.4
United AirlinesOverall score based on 8995 reviews
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
7.1Entertainment
Airline reviews

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

10.0 ExcellentSandra, Oct 2025FCO - SFO
Read more United Airlines reviews

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

I really enjoyed flying with United airlines amazing experience , good customer service and great food

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Boarded plane and then delayed 1.5 hours while on the plane

Food is very turkish. No regard for other natinalities taste and preference. The entertainment can be improved- it was the same menu on 10/8/25 and 10/25/25. The boarding is the worst in the airline industry- I suggest you ask your staff to and watch how other airlines do it.

The best airline for international travel in terms of value you get in business class (service/cost)

On the Boeing 777-300 aircraft there is no personalized climate control for passengers. Every time I've ever flown on this type of airplane I've been uncomfortably warm. For shorter flights (less than 5 hours) this isn't a big deal, but on longer flights where a nap is required to stay comfortable it turns into a nightmare. I love turkish airlines, but I really fo hope they upgrade their fleet. I've flown turkish air once on a newer model and had a fantastic time, so I think its the plane more than the airline.

I liked the overall flight experience. However, Turkish officials could do a better job at guiding non-Turkish speakers to their connecting flight gates in such a huge & vast airport.

Very small and cramped aisles and seats. Food was poor but the fresh hot roll and hummus was good. No cans of soda given but they had small bottles of water. Crew was nice and pleasant and kept bathroom clean.

We couldn’t fly to Chicago on our booked flight. The flight was overbooked.

Small seat space for 13 hours flight, they charged for baggage , very bad quality of food,

I was sitting almost in the back, the seats are very tight and there’s no legroom, it’s uncomfortable for a long distance

Absolute worst airline. Charged us $720 to check 4 bags (2 of which were carry-on). Entertainment systems didnt work. And on a 12 hour flight they served 2 meals and never once came around outside of those 2 meals with a beverage or cup of water. Will never fly them again.

Took forever to board. They made announcements without the loudspeaker and since the waiting room was full of screaming kids, no one could hear what they were saying. The business class sleeper seats were designed for tall skinny people. When partially reclined there was nowhere to rest my feet because they did not reach the footrest. and when fully reclined there wasn't room at my sides for my arms. Definitely one of the worst sleeper seats I have ever had.

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