$278+ Cheap flights from San Francisco (SFO) to Barcelona
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San Francisco to Barcelona with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Francisco to Barcelona are usually found in January or March, booked 72 days in advance, depart on a Tuesday or Sunday and return on a Friday
Cheap flight deals from San Francisco to Barcelona
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.
Round-trip from | $635 (Virgin Atlantic) |
|---|---|
One-way from | $278 (FlightHub) |
Popular in | June |
Cheapest in | January |
Average price | $1,091 |
Find flight deals from San Francisco to Barcelona
Cheapest flights from San Francisco to BarcelonaExplore the most affordable flight options available from San Francisco to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from San Francisco to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Virgin Atlantic deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This SWISS deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Austrian Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Orbitz deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Iberia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Brussels Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Barcelona that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from San Francisco to Barcelona that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Sat 8/9
5:55 am-9:20 am
2 stops18h 25m
Barcelona-El Prat
Tue 8/19
11:35 am-11:11 pm
2 stops20h 36m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Tue 7/29
7:45 am-9:20 am
1 stop16h 35m
Barcelona-El Prat
Wed 8/6
9:30 am-8:50 pm
1 stop20h 20m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Sun 9/7
9:05 pm-9:40 pm
1 stop15h 35m
Barcelona-El Prat
Sun 9/14
10:20 am-12:40 pm
1 stop35h 20m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Tue 9/9
2:40 pm-9:10 am
2 stops33h 30m
Barcelona-El Prat
Fri 2/27
9:55 am-6:45 pm
2 stops17h 50m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Mon 8/11
2:40 pm-8:30 pm
2 stops20h 50m
Barcelona-El Prat
Tue 8/26
12:25 pm-12:40 pm
2 stops33h 15m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Sun 8/17
6:10 am-2:15 pm
2 stops23h 05m
Barcelona-El Prat
Sun 8/24
8:40 pm-6:54 pm
2 stops31h 14m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Sun 8/3
8:40 am-11:59 pm
2 stops30h 19m
Barcelona-El Prat
Tue 8/19
6:40 am-7:57 pm
2 stops22h 17m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Fri 8/8
7:40 pm-2:05 pm
2 stops33h 25m
Barcelona-El Prat
Sun 9/7
6:00 am-4:10 pm
1 stop19h 10m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Fri 9/5
5:30 pm-2:00 pm
Nonstop11h 30m
Barcelona-El Prat
Mon 9/15
4:00 pm-7:15 pm
Nonstop12h 15m
San FranciscoBarcelona
SFO - BCN
SFOBCN
San Francisco
Tue 7/22
8:10 pm-4:45 pm
Nonstop11h 35m
Barcelona-El Prat
Fri 8/15
12:20 pm-10:52 pm
1 stop19h 32m
Best time to book a flight from San Francisco to Barcelona
Have a flexible travel schedule? Discover the best time to fly to Barcelona from San Francisco with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Barcelona
How far ahead should I book a flight from San Francisco to Barcelona?
Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Barcelona. Price data was last updated on June 9, 2025.
The price you pay for your flight from San Francisco to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Francisco to Barcelona?
Currently, January is the cheapest month in which you can book a flight from San Francisco to Barcelona (average of $523). Flying from San Francisco to Barcelona in June is currently the most expensive (average of $1,062). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SFO to BCN?
Find hourly flight availability from San Francisco to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
It’s optimal to fly from San Francisco to Barcelona in the evening. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the afternoon.
What is the cheapest day to fly from San Francisco to Barcelona?
Use this chart to determine the cheapest time to fly round-trip from San Francisco to Barcelona. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their San Francisco to Barcelona flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from San Francisco to Barcelona
Explore weekly flight availability from San Francisco to Barcelona. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.
The most flights from SFO to S37 are scheduled on a Tuesday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
Rainfall in Barcelona by month
Plan your trip to Barcelona by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Barcelona ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona when rainfall is around 0.8 in.
Temperature in Barcelona by month
Plan your trip to Barcelona by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).
Reviews of airlines servicing Barcelona
Get insights into the airlines that provide service to Barcelona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from San Francisco to Barcelona, such as Delta, Austrian Airlines and SWISS. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Overall
Food
Boarding
Comfort
Entertainment
Crew
Reviews
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Francisco to Barcelona
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from San Francisco to Barcelona
Discover the top 10 airlines that operate flights from San Francisco to Barcelona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$285 | Average$603 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$362 | Average$689 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$367 | Average$492 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$395 | Average$776 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$404 | Average$973 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$409 | Average$759 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$417 | Average$800 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$418 | Average$685 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$425 | Average$612 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$451 | Average$738 | FlexibilityNo cancel fee | On-time88% |