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$244+ Cheap flights from Boston (BOS) to Heathrow (LHR)

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to London Heathrow are usually found in January or February, booked 59 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Boston to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Heathrow (LHR). 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$559
(oojo)

One-way from

$244
(Air France)

Popular in

June

Cheapest in

January

Average price

$584

Good round-trip deal

$622 or less

Good one-way deal

$348 or less
Provider with most accurate pricing for Boston Logan Intl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-London Heathrow flights.
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From Boston Logan Intl to London Heathrow
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One-way flight from Boston Logan Intl to London Heathrow
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Highest demand for flights based on searches. 15% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Boston Logan Intl to London Heathrow.
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Price to beat on a one-way flight from Boston Logan Intl to London Heathrow.
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Find flight deals from Boston to Heathrow

Cheapest flights from Boston to Heathrow
Explore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This oojo deal was found by Cheapflights users on 3/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/238:50 pmBOS - LHR
1 stop18h 30mIcelandair
Sat 5/109:25 pmLHR - BOS
1 stop19h 10mIcelandair
Deal found 3/27$559
This oojo deal was found by Cheapflights users on 3/28. 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.
Thu 8/215:40 pmBOS - LHR
1 stop19h 50mScandinavian Airlines
Tue 8/266:40 amLHR - BOS
1 stop13h 55mScandinavian Airlines
Deal found 3/28$560
This Gotogate deal was found by Cheapflights users on 3/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/206:10 pmBOS - LHR
1 stop21h 50mMultiple Airlines
Mon 4/288:25 pmLHR - BOS
1 stop26h 15mMultiple Airlines
Deal found 3/27$562
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:15 amBOS - LHR
Nonstop6h 30mBritish Airways
Sun 9/285:35 pmLHR - BOS
Nonstop7h 35mBritish Airways
Deal found 3/27$565
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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.
Tue 10/76:42 pmBOS - LHR
1 stop10h 38mIberia
Wed 10/158:55 amLHR - BOS
Nonstop7h 25mIberia
Deal found 3/28$569
This United Airlines deal was found by Cheapflights users on 3/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/287:00 amBOS - LHR
1 stop20h 10mUnited Airlines
Mon 3/319:30 amLHR - BOS
2 stops32h 24mUnited Airlines
Deal found 3/26$573
This Justfly.com deal was found by Cheapflights users on 3/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:40 pmBOS - LHR
2 stops15h 10mAir Canada
Wed 5/78:40 amLHR - BOS
2 stops14h 32mAir Canada
Deal found 3/28$576
This JetBlue deal was found by Cheapflights users on 3/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/26:26 pmBOS - LHR
Nonstop7h 04mJetBlue
Wed 5/78:25 amLHR - BOS
Nonstop7h 31mJetBlue
Deal found 3/28$578
This Finnair deal was found by Cheapflights users on 3/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/38:15 pmBOS - LHR
Nonstop6h 35mFinnair
Sun 4/68:55 amLHR - BOS
Nonstop7h 15mFinnair
Deal found 3/27$579
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/309:40 pmBOS - LHR
1 stop15h 10mSWISS
Tue 4/81:45 pmLHR - BOS
1 stop11h 10mSWISS
Deal found 3/27$585
This Delta deal was found by Cheapflights users on 3/28. 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.
Fri 5/210:45 pmBOS - LHR
Nonstop6h 45mDelta
Sun 5/1112:45 pmLHR - BOS
Nonstop7h 55mDelta
Deal found 3/28$588
This Lufthansa deal was found by Cheapflights users on 3/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/158:05 pmBOS - LHR
1 stop16h 00mLufthansa
Thu 5/19:00 amLHR - BOS
1 stop13h 40mLufthansa
Deal found 3/27$595

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Heathrow 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 March 28, 2025.
Use the filters below to find and compare flights from Boston to London Heathrow Airport that are best for you.

Fly from

Boston

Fly to

Heathrow

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 4/23

8:50 pm-8:20 pm

1 stop18h 30m

London Heathrow

Sat 5/10

9:25 pm-11:35 am

1 stop19h 10m

$559

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 8/21

5:40 pm-6:30 pm

1 stop19h 50m

London Heathrow

Tue 8/26

6:40 am-3:35 pm

1 stop13h 55m

$560

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 4/24

10:50 am-6:35 am

2 stops14h 45m

London Heathrow

Sun 5/4

6:00 am-7:55 pm

1 stop18h 55m

$561

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 9/19

7:15 am-6:45 pm

Nonstop6h 30m

London Heathrow

Sun 9/28

5:35 pm-8:10 pm

Nonstop7h 35m

$565

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 4/28

8:00 pm-7:50 am

Nonstop6h 50m

London Heathrow

Mon 5/5

2:40 pm-5:05 pm

Nonstop7h 25m

$569

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 4/15

3:40 pm-11:50 am

2 stops15h 10m

London Heathrow

Wed 4/30

6:00 am-4:52 pm

2 stops15h 52m

$573

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 5/2

6:26 pm-6:30 am

Nonstop7h 04m

London Heathrow

Wed 5/7

8:25 am-10:56 am

Nonstop7h 31m

$578

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 4/7

7:40 pm-7:20 am

Nonstop6h 40m

London Heathrow

Mon 4/14

8:10 pm-10:35 pm

Nonstop7h 25m

$579

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 4/29

5:30 am-10:40 am

1 stop24h 10m

London Heathrow

Sun 5/4

2:05 pm-2:32 pm

1 stop29h 27m

$581

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 5/2

10:45 pm-10:30 am

Nonstop6h 45m

London Heathrow

Sun 5/11

12:45 pm-3:40 pm

Nonstop7h 55m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 37 results
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Compare providers for flights from Boston to Heathrow

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 Boston to Heathrow in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy1 starTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
ScholarTripPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
StudentUniversePrice Accuracy3 starsTrust Score*3 stars
OvagoPrice 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 Boston-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Boston-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Boston to London Heathrow 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 London Heathrow Airport trip
Airports
BOS

Use the FlyLogan App to pre-order food and save time at BOS. Most eateries participate, making it a convenient option.

Read more about BOSby Paul Rubio
LHR

Take the Heathrow Express for the fastest route to central London. It connects to Paddington Station for easy onward travel.

Read more about LHRby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
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

Best time to book a flight from Boston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 London Heathrow Airport

How far ahead should I book a flight from Boston to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Heathrow. Price data was last updated on March 21, 2025.

Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $661). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $1,115). 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 LHR?

Find hourly flight availability from Boston to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

When flying from Boston to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 13% versus a flight in the evening.

What is the cheapest day to fly from Boston to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Boston to Heathrow. Price data was last updated on March 23, 2025.

Travelers seeking maximum savings on their Boston to London Heathrow Airport flight should consider departing on Wednesday at noon 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated March 28, 2025.
Read reviews from past customers who have flown Delta, KLM and Azores Airlines from Boston to London. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Azores Airlines
7.6
Good
63 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Boston to Heathrow. 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 London Heathrow?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to London Heathrow. 19 airlines have flights from Logan Intl to London Heathrow on a regular basis. Booking flights from Boston Logan Intl to London Heathrow should not be difficult; the airport handles an average of 13 outbound flights to London Heathrow per day.

  • What are the cheapest airlines flying from Boston to London Heathrow Airport round-trip?

    According to our current data, Icelandair ($559), Scandinavian Airlines ($560), and British Airways ($565) offers the cheapest pricing from Boston to London Heathrow Airport. Icelandair is 16% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boston to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with Air France, which is currently one of the cheapest options available, starting at $244. Icelandair flights start at $245 while deals on TAP AIR PORTUGAL start at $253 one-way.

  • What are the most reliable airlines from Boston to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Boston, check out the most reliable airlines to get you to your destination on time: Gulf Air (95%), American Airlines (91%), Finnair( 91%).

  • What are the cheapest flights from Boston to London Heathrow Airport?

    The cheapest flight price from Boston to London Heathrow Airport is $278. On average you can expect to pay $2,312. The most popular route, (Boston Logan Intl - London Heathrow), can usually be booked for $435.

  • Where are the most common layover locations when flying from Boston to London Heathrow Airport?

    Boston to London Heathrow Airport flights have a layover in Reykjavik most often. Shannon sees the second most layovers for non-direct flights flying from Boston to London Heathrow Airport.

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

    Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are currently the most popular points of interest in Reykjavik at the moment. Hallgrímskirkja, Harpa and Laugardalslaug Geothermal Pool are located about 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl if you are interested in checking them out. Those looking to explore during their layover in Reykjavik can rent a car from Reykjavik Keflavik Intl for about $55 per day.

  • Where are the least popular layover locations for Boston to London Heathrow Airport flights?

    Boston to London Heathrow Airport flights that have layovers will least frequently stop in Dublin.

  • Can I find deals for flights from Boston to Heathrow that include hotel bookings?

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

  • How can I find direct flights from Boston to Heathrow?

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

  • Can I find deals for business class flights from Boston to Heathrow?

    Yes. Cheapflights offers flight deals from Boston to Heathrow 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 London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $661). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $1,115). 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?

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Top 10 airlines flying from Boston to Heathrow

Discover the top 10 airlines that operate flights from Boston to Heathrow. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$290Average$579FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$325Average$438FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$328Average$660FlexibilityNo cancel feeOn-time76%
PLAYCheapest$386Average$545FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$387Average$679FlexibilityNo cancel feeOn-time72%
KLMCheapest$387Average$617FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$391Average$618FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$392Average$699FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$397Average$685FlexibilityNo cancel feeOn-time62%
DeltaCheapest$398Average$709FlexibilityNo cancel feeOn-timeN/A
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