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$350+ Cheap flights from Oakland, CA (OAK) 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — BCN
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Oakland to Barcelona

Cheapest flights from Oakland to Barcelona
Explore the most affordable flight options available from Oakland to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Delta deal was found by Cheapflights users on 1/26. 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.
Tue 2/175:55 am
OAK
-
BCN
2 stops23h 25m
Delta
Wed 3/411:10 am
BCN
-
OAK
2 stops38h 02m
Delta
Deal found 1/26$515
This Delta deal was found by Cheapflights users on 1/27. 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.
Tue 3/175:55 am
OAK
-
BCN
2 stops27h 10m
Delta
Tue 3/3111:00 am
BCN
-
OAK
2 stops45h 46m
Delta
Deal found 1/27$525
This Delta deal was found by Cheapflights users on 1/26. 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.
Sun 4/124:49 pm
OAK
-
BCN
2 stops55h 11m
Delta
Mon 4/2010:05 am
BCN
-
OAK
2 stops39h 19m
Delta
Deal found 1/26$541
This Delta deal was found by Cheapflights users on 1/26. 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.
Tue 2/175:55 am
OAK
-
BCN
2 stops23h 25m
Delta
Fri 3/66:00 am
BCN
-
OAK
2 stops26h 51m
Delta
Deal found 1/26$565
This Delta deal was found by Cheapflights users on 1/26. 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.
Tue 4/215:55 am
OAK
-
BCN
2 stops42h 05m
Delta
Wed 4/2911:10 am
BCN
-
OAK
2 stops38h 14m
Delta
Deal found 1/26$566
This Delta deal was found by Cheapflights users on 1/26. 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.
Mon 4/205:04 pm
OAK
-
BCN
2 stops54h 56m
Delta
Wed 4/299:20 am
BCN
-
OAK
2 stops40h 04m
Delta
Deal found 1/26$571
This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 4/95:55 am
OAK
-
BCN
2 stops24h 40m
Delta
Thu 4/166:10 am
BCN
-
OAK
2 stops26h 44m
Delta
Deal found 1/27$572
This Delta deal was found by Cheapflights users on 1/27. 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.
Sun 3/225:55 am
OAK
-
BCN
2 stops41h 40m
Delta
Wed 4/86:20 am
BCN
-
OAK
2 stops26h 26m
Delta
Deal found 1/27$577
This Delta deal was found by Cheapflights users on 1/27. 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.
Wed 4/84:49 pm
OAK
-
BCN
2 stops37h 46m
Delta
Thu 4/166:10 am
BCN
-
OAK
2 stops26h 44m
Delta
Deal found 1/27$578
This Delta deal was found by Cheapflights users on 1/27. 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.
Sun 3/225:55 am
OAK
-
BCN
2 stops41h 40m
Delta
Tue 3/3111:00 am
BCN
-
OAK
2 stops45h 46m
Delta
Deal found 1/27$583
This Delta deal was found by Cheapflights users on 1/27. 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.
Sun 3/225:55 am
OAK
-
BCN
2 stops41h 40m
Delta
Thu 4/96:10 am
BCN
-
OAK
2 stops26h 36m
Delta
Deal found 1/27$584
This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 4/95:55 am
OAK
-
BCN
2 stops23h 55m
Delta
Wed 4/1510:05 am
BCN
-
OAK
2 stops46h 49m
Delta
Deal found 1/27$585

Find flight deals from Oakland to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Oakland (OAK) 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 January 28, 2026.

Round-trip from

$515
(Delta)

One-way from

$350
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$527
From Oakland to Barcelona
Search Deals
One-way flight from Oakland to Barcelona
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($197 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oakland 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 January 28, 2026.
Use the filters below to find and compare flights from Oakland to Barcelona that are best for you.

Fly from

Oakland

Fly to

Barcelona

Route

Depart

Return

Price

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Mon 3/23

5:55 am-8:50 am

2 stops42h 55m

Barcelona-El Prat

Wed 4/29

1:25 pm-11:54 pm

2 stops43h 29m

$566

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Sun 3/22

5:55 am-7:35 am

2 stops41h 40m

Barcelona-El Prat

Wed 4/8

6:20 am-11:46 pm

2 stops26h 26m

$577

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Wed 4/8

4:49 pm-3:35 pm

2 stops37h 46m

Barcelona-El Prat

Thu 4/16

6:10 am-11:54 pm

2 stops26h 44m

$578

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Thu 4/9

5:55 am-2:50 pm

2 stops23h 55m

Barcelona-El Prat

Wed 4/15

10:05 am-11:54 pm

2 stops46h 49m

$585

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Mon 4/6

5:55 am-5:10 pm

2 stops26h 15m

Barcelona-El Prat

Wed 4/15

11:00 am-11:54 pm

2 stops45h 54m

$602

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Sun 4/5

4:49 pm-12:50 pm

2 stops59h 01m

Barcelona-El Prat

Tue 4/14

11:00 am-11:54 pm

2 stops45h 54m

$604

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Sun 4/5

4:49 pm-12:50 pm

2 stops59h 01m

Barcelona-El Prat

Thu 4/16

11:00 am-4:24 pm

2 stops38h 24m

$610

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Mon 3/23

5:55 am-8:50 am

2 stops42h 55m

Barcelona-El Prat

Mon 4/27

11:00 am-11:54 pm

2 stops45h 54m

$627

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Mon 3/23

5:55 am-4:30 pm

2 stops26h 35m

Barcelona-El Prat

Wed 4/8

6:20 am-4:00 pm

2 stops18h 40m

$636

OaklandBarcelona

OAK - BCN

OAKBCN

Oakland

Tue 3/24

4:49 pm-7:35 am

2 stops30h 46m

Barcelona-El Prat

Wed 4/8

6:20 am-4:00 pm

2 stops18h 40m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 22 results
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Best time to book a flight from Oakland to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from Oakland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oakland to Barcelona

What is the cheapest month to book a flight from Oakland, California to Barcelona?

Currently, October is the cheapest month in which you can book a flight from Oakland, California to Barcelona (average of $374). Flying from Oakland, California to Barcelona in June is currently the most expensive (average of $701). 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.

Related info for your journey

Find useful and relevant information for your journey from Oakland to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Oakland to Barcelona?

    Oakland (OAK), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Oakland to Barcelona. 0 airlines have flights from Oakland to Barcelona on a regular basis. Booking flights from Oakland to Barcelona should not be difficult; the airport handles an average of 0 outbound flights to Barcelona per day.

  • How long is the flight from Oakland, California to Barcelona?

    Airlines like Delta fly from Oakland, California to Barcelona in about 42h 55m. The time it takes to get you to your destination can typically vary by up to . The distance between Oakland, California and Barcelona is about 5942 mi.

  • Can I find deals for flights from Oakland to Barcelona that include hotel bookings?

    Yes. In addition to deals on Oakland to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oakland to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oakland to Barcelona.

  • Can I find deals for business class flights from Oakland to Barcelona?

    Yes. Cheapflights offers flight deals from Oakland to Barcelona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oakland, California to Barcelona?

    Currently, October is the cheapest month in which you can book a flight from Oakland, California to Barcelona (average of $374). Flying from Oakland, California to Barcelona in June is currently the most expensive (average of $701). 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.

See more FAQs

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