SFO - OTP

$401 Find Cheap Flights from San Francisco to Bucharest

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 Bucharest departing on 5/11. 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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KAYAK searches hundreds of travel sites at once for deals on flights to Bucharest Otopeni Intl Airport

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

Cheap Flight Deals from San Francisco to Bucharest (SFO-OTP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Bucharest 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.

Recent round-trip flight deals from San Francisco to Bucharest

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Francisco to Bucharest.
Discover the best prices for you by selecting your travel dates on KAYAK.
British Airways Logo
9:40 pm - 10:55 pmSFO-OTP
16h 15m1 stop
British Airways Logo
4:00 pm - 3:00 pmOTP-SFO
33h 00m1 stop
$562British Airways
Find Deal
Mon, Oct 27 - Mon, Nov 10
British Airways Logo
10:16 am - 3:35 pmSFO-OTP
20h 19m2 stops
British Airways Logo
4:00 pm - 3:00 pmOTP-SFO
33h 00m1 stop
$589British Airways
Find Deal
Mon, Oct 27 - Mon, Nov 10
Lufthansa Logo
9:05 pm - 12:55 amSFO-OTP
17h 50m1 stop
Lufthansa Logo
6:05 am - 7:00 pmOTP-SFO
22h 55m1 stop
$694Lufthansa
Find Deal
Tue, Aug 5 - Thu, Aug 14
Turkish Airlines Logo
6:45 pm - 8:10 amSFO-OTP
27h 25m1 stop
Turkish Airlines Logo
9:45 pm - 10:35 amOTP-SFO
22h 50m1 stop
$697Turkish Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 14
Lufthansa Logo
1:55 pm - 6:35 pmSFO-OTP
18h 40m2 stops
Lufthansa Logo
7:20 pm - 7:00 pmOTP-SFO
33h 40m1 stop
$704Lufthansa
Find Deal
Tue, Aug 5 - Mon, Aug 18
United Airlines Logo
1:05 pm - 6:35 pmSFO-OTP
19h 30m2 stops
United Airlines Logo
1:55 pm - 10:28 amOTP-SFO
54h 33m2 stops
$706United Airlines
Find Deal
Mon, Sep 1 - Mon, Sep 15
United Airlines Logo
8:45 am - 6:35 pmSFO-OTP
23h 50m2 stops
United Airlines Logo
6:05 am - 8:19 pmOTP-SFO
24h 14m2 stops
$709United Airlines
Find Deal
Tue, Aug 5 - Thu, Aug 14
Turkish Airlines Logo
6:45 pm - 2:35 pmSFO-OTP
33h 50m1 stop
Turkish Airlines Logo
9:30 am - 4:40 pmOTP-SFO
17h 10m1 stop
$712Turkish Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 15
Delta Logo
7:00 am - 12:10 pmSFO-OTP
19h 10m2 stops
Delta Logo
6:30 am - 6:39 pmOTP-SFO
22h 09m2 stops
$713Delta
Find Deal
Wed, Jul 30 - Wed, Aug 13
Delta Logo
6:05 am - 12:10 pmSFO-OTP
20h 05m2 stops
Delta Logo
6:30 am - 4:00 pmOTP-SFO
19h 30m2 stops
$750Delta
Find Deal
Thu, Aug 7 - Thu, Aug 14
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KAYAK's insights & trends for San Francisco to Bucharest flights

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

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

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

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

What is the cheapest month to fly from San Francisco to Bucharest Otopeni Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Bucharest Otopeni Intl Airport, 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 Bucharest Otopeni Intl Airport is November, where tickets cost $638 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,488 and $1,401 respectively.

How far in advance should I book a flight from San Francisco to Bucharest Otopeni Intl Airport?

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 Bucharest Otopeni Intl Airport, 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 Bucharest Otopeni Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$401
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 46% increase in price.
Flight from San Francisco to Bucharest

When to book flights from San Francisco to Bucharest

Are your dates flexible? Find out the best times to travel from San Francisco to Bucharest 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 San Francisco to Bucharest flights

  • What is the cheapest flight from San Francisco to Bucharest Otopeni Intl Airport?

    In the last 3 days, the lowest price for a flight from San Francisco to Bucharest Otopeni Intl Airport was $401 for a one-way ticket and $562 for a round-trip.

  • Do I need a passport to fly between San Francisco and Bucharest?

    Yes

  • Which airports will I be using when flying from San Francisco to Bucharest?

    On your way to Bucharest, you’ll fly out from San Francisco. You’ll be landing at Bucharest Otopeni Intl.

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

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

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

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between San Francisco and Bucharest, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San Francisco to Bucharest, Delta or SWISS?

    The two airlines most popular with KAYAK users for flights from San Francisco to Bucharest are Delta and SWISS. With an average price for the route of $1,298 and an overall rating of 8.0, Delta is the most popular choice. SWISS is also a great choice for the route, with an average price of $1,179 and an overall rating of 7.5.

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

    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 Bucharest.

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

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

    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 Bucharest with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and OTP can sometimes prove cheaper using this method.

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

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

Top 5 airlines serving from San Francisco to Bucharest

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Bucharest. 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 San Francisco to Bucharest? 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.
7.8
KLMOverall score based on 1334 reviews
7.2Food
7.7Comfort
8.4Crew
7.8Boarding
7.1Entertainment
Airline reviews

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

10.0 ExcellentAnonymous, Apr 2025INL - AMS
Read more KLM reviews

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

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. 👍👍

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Checkin was painful and slow! Lady didn’t seem to know what was going on and couldn’t explain the delay. Seemed ahe couldnt see the computer scree and we couldn’t hear her talk through her mask.

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

Very punctual, the onboard staff was friendly and correct, the flight was fortunately very calm, the toilets were clean, in short, an excellent experience Thanks

Ordered Vegan meal - it was ok, but not exceptional. Seat ok row 39 middle section aisle. Nearly full flight - crew was busy but they did the best they could. There was a USB A port at the seat. I listened to my own music and only looked at flight information. One nice thing was the connection information was made available in the screen.

Very nice and friendly crew. Boarding system can be improved.

The Etickets had been changed (Why?) without notice ; Hence, that caused troubles when checking in. Not until I contacted my ticket agent and was given correct Etickets could I then check in.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Vegan food tasted good. Restroom could be kept cleaner. Seat tray table was a bit tilted so food tray kept sliding down a bit. Flight crew can be a little more friendly, caring and approachable. Their faces lacked smiles and tone was stern.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

Lufthansa charged me $280 to take skiiis when in the US the boot bag and skiis are one check-in bag. This was not advertised and a real shock at the airport. They only took the boot bag as a check-in item. The seats have been squeezed together like any economy airline and legroom is not as good as it used to be. Otherwise, the flight was fine and staff was helpful for making my connection.

Professional crew and staff, very organized boarding and on time flights, baggage handling. Indian vegetarian meals were good, though could improve by offering Indian bread (naan/paratha/roti) as well. Very helpful pre flight emails with details of onboard experience 👍 Above average selection of movies. Consider offering more movies with subtitles and ratings indicators (e.g., IMDB scores).

Terrible experience. Should be a short simple flight from San Francisco to Palm Springs. Disgusting insult that United Air doesn’t have a cabin crew ready to receive a plane that’s already an hour plus late in departure. Lots of misinformation along the way from cockpit and crew. Definitely unimpressed with both union and management.

My flight was delayed d the gate was never updated inside the terminal. If I hadn’t checked my email I would have missed my flight. Also, I paid a total of $5100 for my flight to be. Business or first class. My final leg of my flight from Heathrow to Frankfurt was not to standard of what I expected or experienced in the previous legs of my trip.

I requested a wheelchair for they haven’t got it, they are old and don’t speech english

Good but entertainment system was not easy and very buggy

Too much long line at the TSA and Security. Prepare for long walk for baggage claim.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

The boarding process was quite loud and chaotic. The flight attendants kept barking over the PA system about people needing to only stow large items in the overhead bins. During the one and only service, I was hit by the service cart. At the same time, a passenger was returning from the bathroom and the crew definitely saw him but stopped a few seats short of allowing him to sit down before starting service and made him wait a good 10 minutes before passing his seat and allowing him to sit down, after which he had to ask for his snack and beverage or he would have been passed over. Neither flight attendant thanked passengers as they left; in fact, I did not see them again once the plane door was opened.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

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