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Barcelona-El Prat

$331+ Cheap flights from Boston (BOS) to Barcelona-El Prat (BCN)

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Barcelona-El Prat are usually found in January or March, booked 72 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Boston to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Barcelona-El Prat (BCN). 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

$415
(Kiwi.com)

One-way from

$331
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$783

Good round-trip deal

$414 or less

Good one-way deal

$264 or less
From Boston Logan Intl to Barcelona-El Prat
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One-way flight from Boston Logan Intl to Barcelona-El Prat
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Highest demand for flights based on searches. 16% potential increase in price ($116 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 June 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Barcelona-El Prat.
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Price to beat on a one-way flight from Boston Logan Intl to Barcelona-El Prat.
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Find flight deals from Boston to Barcelona-El Prat

Cheapest flights from Boston to Barcelona-El Prat
Explore the most affordable flight options available from Boston to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:20 pmBOS - BCN
1 stop10h 40mIberia
Sun 10/127:25 pmBCN - BOS
Nonstop8h 45mIberia
Deal found 6/12$410
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1111:35 pmBOS - BCN
1 stop33h 10mMultiple Airlines
Wed 8/206:30 pmBCN - BOS
Nonstop8h 45mMultiple Airlines
Deal found 6/11$415
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:10 pmBOS - BCN
1 stop21h 40mTAP AIR PORTUGAL
Sat 11/19:10 pmBCN - BOS
1 stop23h 20mTAP AIR PORTUGAL
Deal found 6/12$417
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/295:05 pmBOS - BCN
1 stop20h 05mSWISS
Thu 7/249:40 amBCN - BOS
1 stop11h 45mSWISS
Deal found 6/10$423
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/711:00 pmBOS - BCN
Nonstop7h 15mVueling
Mon 8/186:30 pmBCN - BOS
Nonstop8h 45mVueling
Deal found 6/11$425
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/209:25 pmBOS - BCN
1 stop19h 00mAer Lingus
Tue 11/411:30 amBCN - BOS
1 stop13h 25mAer Lingus
Deal found 6/11$438
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:35 pmBOS - BCN
1 stop18h 45mScandinavian Airlines
Sat 11/157:10 pmBCN - BOS
1 stop26h 40mScandinavian Airlines
Deal found 6/10$440
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:40 pmBOS - BCN
1 stop9h 55mUnited Airlines
Fri 11/141:35 pmBCN - BOS
2 stops27h 08mUnited Airlines
Deal found 6/11$456
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.
Sun 12/283:20 pmBOS - BCN
1 stop12h 15mAir Canada
Tue 2/101:35 pmBCN - BOS
1 stop26h 03mAir Canada
Deal found 6/12$469
This Austrian Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 11/181:30 pmBOS - BCN
2 stops24h 15mAustrian Airlines
Wed 12/38:30 pmBCN - BOS
2 stops26h 20mAustrian Airlines
Deal found 6/9$531
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:35 amBOS - BCN
1 stop19h 35mIcelandair
Fri 2/611:45 amBCN - BOS
1 stop12h 00mIcelandair
Deal found 6/12$558

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Barcelona-El Prat 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 Boston to Barcelona-El Prat Airport that are best for you.

Fly from

Boston

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 8/11

11:35 pm-2:45 pm

1 stop33h 10m

Barcelona-El Prat

Wed 8/20

6:30 pm-9:15 pm

Nonstop8h 45m

$415

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 9/8

9:20 pm-2:00 pm

1 stop10h 40m

Barcelona-El Prat

Mon 9/15

6:30 pm-9:15 pm

Nonstop8h 45m

$416

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 6/29

5:05 pm-7:10 pm

1 stop20h 05m

Barcelona-El Prat

Thu 7/24

9:40 am-3:25 pm

1 stop11h 45m

$423

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 8/7

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

Mon 8/18

6:30 pm-9:15 pm

Nonstop8h 45m

$425

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 8/29

5:40 pm-8:50 am

1 stop33h 10m

Barcelona-El Prat

Mon 9/1

7:00 pm-3:35 pm

1 stop26h 35m

$449

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 8/2

6:40 pm-7:50 am

1 stop31h 10m

Barcelona-El Prat

Tue 10/14

12:10 pm-2:30 pm

1 stop32h 20m

$469

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 8/16

6:40 pm-7:50 am

1 stop31h 10m

Barcelona-El Prat

Tue 9/2

12:10 pm-5:43 pm

2 stops35h 33m

$511

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 8/5

9:25 pm-10:25 pm

1 stop19h 00m

Barcelona-El Prat

Thu 8/21

11:00 am-6:45 pm

1 stop13h 45m

$512

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 8/21

10:25 pm-1:30 am

1 stop21h 05m

Barcelona-El Prat

Mon 9/1

10:40 pm-8:45 pm

2 stops52h 05m

$518

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 8/3

8:05 pm-8:30 pm

2 stops18h 25m

Barcelona-El Prat

Tue 10/14

9:20 pm-3:55 pm

2 stops24h 35m

$566

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 28 results
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The best insider tips for Boston to Barcelona-El Prat Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Barcelona-El Prat Airport trip
Airports
BOS

Use the FlyLogan app for real-time flight updates and pre-order food via BOS2GO, saving time before your evening departure.

Read more about BOSby Paul Rubio
BCN

Take the Aerobus from BCN to the city center. It runs frequently, offers WiFi, and is more convenient than the train or metro.

Read more about BCNby Duncan Madden
Our travel experts
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
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

Best time to book a flight from Boston to Barcelona-El Prat

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

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Barcelona-El Prat. Price data was last updated on June 9, 2025.

The best time to book flights from Boston to Barcelona-El Prat Airport is 72 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 Boston to Barcelona-El Prat Airport?

Currently, January is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of $523). Flying from Boston to Barcelona-El Prat Airport 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 BOS to BCN?

Find hourly flight availability from Boston to Barcelona-El Prat. 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 typically best to fly out from Boston to Barcelona-El Prat Airport in the evening. Doing so could potentially save you 28% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Boston to Barcelona-El Prat Airport?

Use this chart to determine the cheapest time to fly round-trip from Boston to Barcelona-El Prat. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Barcelona-El Prat Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Barcelona-El Prat Airport

Explore weekly flight availability from Boston to Barcelona-El Prat. 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 BOS to BCN are scheduled on a Thursday (7 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Barcelona-El Prat by month

Plan your trip to Barcelona-El Prat by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Barcelona-El Prat Airport 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-El Prat Airport when rainfall is around 0.8 in.

Temperature in Barcelona-El Prat by month

Plan your trip to Barcelona-El Prat by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Barcelona-El Prat Airport, 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-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. 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-El Prat. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Boston to Barcelona, such as Delta, Finnair and SWISS. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Brussels Airlines
7.4
Good
355 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Boston to Barcelona-El Prat. 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 Boston to Barcelona-El Prat?

    Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to Barcelona-El Prat. On average, Logan Intl has 3 outbound flights to Barcelona-El Prat per day from 22 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

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

    Currently priced at $416, Iberia will fly you from Boston to Barcelona-El Prat Airport and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from SWISS and Vueling - these airlines can fly you to your destination from $423 and $425, respectively. You may be able to fly from Boston to Barcelona-El Prat Airport for 29% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Boston to Barcelona-El Prat Airport are Vueling ($333), TAP AIR PORTUGAL ($348), and Scandinavian Airlines ($366).

  • What are the most reliable airlines from Boston to Barcelona-El Prat Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Barcelona-El Prat Airport on time: American Airlines (91%), Vueling (90%), Iberia (90%).

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

    Looking for the cheapest flight from Boston to Barcelona-El Prat Airport? While on average our users pay $1,529, our data indicates the cheapest price to be $168. The most popular route (Boston Logan Intl - Barcelona-El Prat), is priced around $294.

  • Where are the most common layover locations when flying from Boston to Barcelona-El Prat Airport?

    Most of the time, Boston to Barcelona-El Prat Airport flights that have layovers will stop in Lisbon. London sees the second most layovers for non-direct flights flying from Boston to Barcelona-El Prat Airport. Madrid comes next as the third most popular layover location for Boston to Barcelona-El Prat Airport flights.

  • What are some popular things to do or see while on a layover in Lisbon?

    Most Lisbon visitors opt to spend their time experiencing Chiado, Praça do Marquês de Pombal, and Londres. Those on a layover in Lisbon interested in visiting Chiado, Praça do Marquês de Pombal, or Londres can do so by traveling 4.5 mi, 3.6 mi, and 2.3 mi, respectively from Lisbon Humberto Delgado. Those looking to explore during their layover in Lisbon can rent a car from Lisbon Humberto Delgado for about $21 per day.

  • What are some popular points of interest to see during a layover in London?

    London travelers tend to visit Hyde Park, Buckingham Palace, and Piccadilly Circus more than any other notable places. Travelers on a layover in London can visit Hyde Park, Buckingham Palace, and Piccadilly Circus, by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively after landing at London Heathrow. Travelers can rent a car at London Heathrow for an average daily rate of $44 to make sightseeing during their layover a little easier.

  • What are points of interest worth seeing during a layover in Madrid?

    The majority of Madrid visitors spend their time at Puerta del Sol, Plaza Mayor, and Spain Building. Puerta del Sol, Plaza Mayor, and Spain Building can be visited by traveling about 8.4 mi, 8.6 mi, and 8.5 mi respectively from Madrid Barajas. Those landing in Madrid looking to spend some time exploring during their layover can rent a car for about $26 per day.

  • Where are the least popular layover locations for Boston to Barcelona-El Prat Airport flights?

    Of the flights from Boston to Barcelona-El Prat Airport that have layovers, the fewest flights stop in Montreal. New York sees the next fewest layovers on Boston to Barcelona-El Prat Airport flights. New York is followed by Munich in terms of the least popular layover location for Boston to Barcelona-El Prat Airport flights.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of $523). Flying from Boston to Barcelona-El Prat Airport 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.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Calella
Castelldefels
Cadaques
L'Hospitalet de Llobregat
El Prat de Llobregat
Badalona
Pineda de Mar
Santa Susanna

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Alternative routes for Boston to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Boston to Barcelona-El Prat

Discover the top 10 airlines that operate flights from Boston to Barcelona-El Prat. 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.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$265Average$289FlexibilityNo cancel feeOn-time74%
PLAYCheapest$308Average$323FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$337Average$553FlexibilityNo cancel feeOn-time88%
IcelandairCheapest$356Average$497FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$358Average$582FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$395Average$622FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$405Average$568FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$424Average$733FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$450Average$702FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$454Average$626FlexibilityNo cancel feeOn-time70%

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