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$368+ Cheap flights from Barcelona-El Prat (BCN) to San Francisco (SFO)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SFO
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheapflights Tip: The best prices from Barcelona-El Prat to San Francisco are usually found in February or March, booked 35 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Barcelona-El Prat to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) to San Francisco (SFO). 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 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$532
(Delta)

One-way from

$368
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$603

Good one-way deal

$370 or less
Provider with most accurate pricing for Barcelona-El Prat-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Barcelona-El Prat-San Francisco flights.
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From Barcelona-El Prat to San Francisco
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One-way flight from Barcelona-El Prat to San Francisco
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Highest demand for flights based on searches. 20% potential increase in price ($164 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a one-way flight from Barcelona-El Prat to San Francisco.
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Find flight deals from Barcelona-El Prat to San Francisco

Cheapest flights from Barcelona-El Prat to San Francisco
Explore the most affordable flight options available from Barcelona-El Prat to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This United Airlines deal was found by Cheapflights users on 1/14. 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.
Sat 2/286:50 am
BCN
-
SFO
1 stop18h 05m
United Airlines
Sat 3/76:46 pm
SFO
-
BCN
2 stops28h 49m
United Airlines
Deal found 1/14$532
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:05 pm
BCN
-
SFO
Nonstop12h 50m
LEVEL
Thu 6/187:45 pm
SFO
-
BCN
Nonstop11h 45m
LEVEL
Deal found 1/14$533
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Tue 9/14:10 pm
BCN
-
SFO
Nonstop12h 10m
United Airlines
Mon 10/125:30 pm
SFO
-
BCN
Nonstop11h 30m
United Airlines
Deal found 1/14$534
This Air Canada deal was found by Cheapflights users on 1/14. 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.
Sat 4/256:40 am
BCN
-
SFO
2 stops23h 41m
Air Canada
Sun 5/101:40 pm
SFO
-
BCN
1 stop34h 40m
Air Canada
Deal found 1/14$535
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Mon 9/79:05 am
BCN
-
SFO
1 stop18h 55m
United Airlines
Sun 9/135:30 pm
SFO
-
BCN
Nonstop11h 30m
United Airlines
Deal found 1/15$536
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Tue 9/14:10 pm
BCN
-
SFO
Nonstop12h 10m
United Airlines
Thu 9/108:30 am
SFO
-
BCN
1 stop14h 30m
United Airlines
Deal found 1/15$537
This Expedia deal was found by Cheapflights users on 1/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:05 pm
BCN
-
SFO
1 stop25h 45m
Aer Lingus
Tue 6/165:35 pm
SFO
-
BCN
1 stop19h 50m
Aer Lingus
Deal found 1/14$538
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Mon 4/133:15 pm
BCN
-
SFO
1 stop27h 01m
United Airlines
Sun 4/266:00 am
SFO
-
BCN
2 stops22h 15m
United Airlines
Deal found 1/15$539
This Lufthansa deal was found by Cheapflights users on 1/14. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:10 pm
BCN
-
SFO
Nonstop12h 10m
Lufthansa
Fri 10/235:30 pm
SFO
-
BCN
Nonstop11h 30m
Lufthansa
Deal found 1/14$540
This Air Canada deal was found by Cheapflights users on 1/14. 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.
Mon 10/1912:05 pm
BCN
-
SFO
1 stop32h 12m
Air Canada
Tue 10/278:25 am
SFO
-
BCN
1 stop16h 10m
Air Canada
Deal found 1/14$541
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Wed 9/24:10 pm
BCN
-
SFO
Nonstop12h 10m
United Airlines
Fri 10/168:40 am
SFO
-
BCN
1 stop15h 40m
United Airlines
Deal found 1/14$542
This Air Canada deal was found by Cheapflights users on 1/14. 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.
Mon 2/29:55 am
BCN
-
SFO
2 stops20h 27m
Air Canada
Mon 2/98:25 am
SFO
-
BCN
2 stops18h 35m
Air Canada
Deal found 1/14$543

Cheapflights Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat to San Francisco 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 15, 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to San Francisco that are best for you.

Fly from

Barcelona-El Prat

Fly to

San Francisco

Route

Depart

Return

Price

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 2/28

1:55 pm-1:28 am

2 stops20h 33m

San Francisco

Sat 3/7

6:46 pm-8:35 am

2 stops28h 49m

$532

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 1/31

6:50 am-7:28 pm

2 stops21h 38m

San Francisco

Fri 2/6

1:35 pm-4:20 pm

1 stop17h 45m

$533

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 4/18

12:50 pm-11:22 pm

1 stop19h 32m

San Francisco

Thu 4/30

7:30 pm-7:35 pm

1 stop15h 05m

$534

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 4/8

10:15 am-12:40 pm

1 stop35h 25m

San Francisco

Sun 4/12

7:15 am-5:55 pm

2 stops25h 40m

$547

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 4/8

2:55 pm-4:15 pm

1 stop34h 20m

San Francisco

Tue 4/14

4:35 pm-11:40 pm

2 stops22h 05m

$551

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 4/8

8:00 pm-4:15 pm

1 stop29h 15m

San Francisco

Mon 4/13

7:30 pm-11:40 pm

2 stops19h 10m

$551

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 4/8

12:50 pm-9:19 pm

1 stop17h 29m

San Francisco

Sun 4/12

7:40 pm-4:25 pm

Nonstop11h 45m

$566

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 3/4

1:00 pm-11:50 am

1 stop31h 50m

San Francisco

Wed 3/11

4:03 pm-5:05 pm

2 stops17h 02m

$568

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sun 3/1

6:50 am-12:40 pm

1 stop14h 50m

San Francisco

Sun 3/8

6:25 pm-7:50 pm

2 stops17h 25m

$568

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 3/5

1:35 pm-1:34 pm

2 stops32h 59m

San Francisco

Sat 3/14

7:50 pm-9:10 am

1 stop29h 20m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 20 results
1
2

Compare providers for flights from Barcelona-El Prat to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Barcelona-El Prat to San Francisco in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Thrive TravelPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Barcelona-El Prat Airport-San Francisco flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Barcelona-El Prat Airport-San Francisco flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Barcelona-El Prat Airport-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Barcelona-El Prat Airport-San Francisco flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Barcelona-El Prat Airport-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Barcelona-El Prat to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Barcelona-El Prat 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 Barcelona-El Prat Airport to San Francisco

How far ahead should I book a flight from Barcelona-El Prat Airport to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Barcelona-El Prat to San Francisco. Price data was last updated on January 9, 2026.

The best time to book flights from Barcelona-El Prat Airport to San Francisco is 35 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Barcelona-El Prat Airport to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Francisco (average of $308). Flying from Barcelona-El Prat Airport to San Francisco in July is currently the most expensive (average of $672). 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.

The best insider tips for Barcelona-El Prat Airport to San Francisco flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Barcelona-El Prat Airport to San Francisco trip
Airports
BCN

Expect queues at security in BCN, but they are well managed and fast moving. Arrive early, especially during peak seasons.

Read more about BCNBy Duncan Madden
SFO

The least expensive way to travel from SFO to downtown San Francisco is on BART, taking about 40 minutes.

Read more about SFOBy Harriet Baskas
Our travel experts
Duncan Madden

Duncan Madden

Expert on BCN

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated January 15, 2026.
See what other customers who have flown with SWISS, United Airlines, and Iberia from Barcelona-El Prat Airport to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,849 reviews

Overall

7.5

Food

7.1

Comfort

7.4

Crew

8.3

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
SWISS
7.5
Good
1,849 reviews
SWISS
7.5
Good
1,849 reviews

Overall

7.5

Food

7.1

Comfort

7.4

Crew

8.3

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
United Airlines
7.4
Good
9,164 reviews
SWISS
7.5
Good
1,849 reviews

Overall

7.5

Food

7.1

Comfort

7.4

Crew

8.3

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
Iberia
7.0
Good
3,087 reviews
SWISS
7.5
Good
1,849 reviews

Overall

7.5

Food

7.1

Comfort

7.4

Crew

8.3

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
Lufthansa
6.8
Okay
7,717 reviews
SWISS
7.5
Good
1,849 reviews

Overall

7.5

Food

7.1

Comfort

7.4

Crew

8.3

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
British Airways
6.7
Okay
7,676 reviews
SWISS
7.5
Good
1,849 reviews

Overall

7.5

Food

7.1

Comfort

7.4

Crew

8.3

Boarding

7.7

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.

Related info for your journey

Find useful and relevant information for your journey from Barcelona-El Prat to San Francisco. 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 into for flights to San Francisco from Barcelona-El Prat?

    For a flight from Barcelona-El Prat to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 0 inbound flights from Barcelona-El Prat per day. 11 airlines have flights to San Francisco from Barcelona-El Prat on a regular basis.

  • How long is the flight from Barcelona-El Prat Airport to San Francisco?

    A quick flight from Barcelona-El Prat Airport to San Francisco can take about 19h 32m. United Airlines provides one of the quickest options available for as low as $534. The distance between Barcelona-El Prat Airport and San Francisco is about 5952 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Barcelona-El Prat Airport to San Francisco round-trip?

    Cheapflights users have booked flights from Barcelona-El Prat Airport to San Francisco round-trip from $285. Other airlines that can offer you cheap pricing are Vueling, from $294, and British Airways, from $381. TAP AIR PORTUGAL is 55% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Barcelona-El Prat Airport to San Francisco one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $223. Users have also found prices from $233 and $260 on LEVEL and Vueling, respectively.

  • What are the cheapest flights from Barcelona-El Prat Airport to San Francisco?

    On average you can expect to pay $442 for a flight from Barcelona-El Prat Airport to San Francisco. The cheapest flight overall is $284 while the most popular route, (Barcelona-El Prat - San Francisco) is currently priced at $386.

  • Can I find deals for flights from Barcelona-El Prat to San Francisco that include hotel bookings?

    Yes. In addition to deals on Barcelona-El Prat to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Barcelona-El Prat to San Francisco?

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

  • Can I find deals for business class flights from Barcelona-El Prat to San Francisco?

    Yes. Cheapflights offers flight deals from Barcelona-El Prat to San Francisco 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 Barcelona-El Prat Airport to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Francisco (average of $308). Flying from Barcelona-El Prat Airport to San Francisco in July is currently the most expensive (average of $672). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Santa Clara
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
San Carlos
San Ramon
Manteca
Vallejo
San Lorenzo
Hollister
Redwood City
Union City
Elk Grove
Foster City

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Top 10 airlines flying from Barcelona-El Prat to San Francisco

Discover the top 10 airlines that operate flights from Barcelona-El Prat to San Francisco. 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$285Average$636FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$294Average$675FlexibilityNo cancel feeOn-time88%
British AirwaysCheapest$381Average$462FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$382Average$632FlexibilityNo cancel feeOn-time69%
SWISSCheapest$416Average$567FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$438Average$653FlexibilityNo cancel feeOn-time76%
KLMCheapest$443Average$610FlexibilityNo cancel feeOn-time75%
DeltaCheapest$499Average$913FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$501Average$790FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$504Average$666FlexibilityNo cancel feeOn-timeN/A

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