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Cardiff

$760+ Cheap flights from Boston (BOS) to Cardiff (CWL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CWL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Boston to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Cardiff (CWL). 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 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$760
(KLM)

Popular in

March

Cheapest in

October
Provider with most accurate pricing for Boston Logan Intl-Cardiff Wales flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Cardiff Wales flights.
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From Boston Logan Intl to Cardiff Wales
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High demand for flights, 11% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Find flight deals from Boston to Cardiff

Cheapest flights from Boston to Cardiff
Explore the most affordable flight options available from Boston to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This KLM deal was found by Cheapflights users on 1/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/181:08 pmBOS - CWL
2 stops15h 42mKLM
Tue 2/255:25 pmCWL - BOS
1 stop25h 10mKLM
Deal found 1/20$760
This Delta deal was found by Cheapflights users on 1/20. 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 5/1311:00 amBOS - CWL
2 stops17h 15mDelta
Mon 5/199:50 amCWL - BOS
1 stop11h 45mDelta
Deal found 1/20$823
This Ovago deal was found by Cheapflights users on 1/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/27:40 pmBOS - CWL
2 stops31h 40mAer Lingus
Mon 7/712:00 pmCWL - BOS
2 stops15h 35mAer Lingus
Deal found 1/20$1,893
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:25 amBOS - CWL
3 stops23h 05mMultiple Airlines
Mon 5/1912:00 pmCWL - BOS
3 stops17h 14mMultiple Airlines
Deal found 1/20$3,451

Find flights from Boston to Cardiff within your budget

Customize your flight search to find flights from Boston to Cardiff 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 21, 2025.

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Route

Depart

Return

Price

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Tue 2/18

7:11 pm-9:50 am

1 stop9h 39m

Cardiff Wales

Tue 2/25

10:25 am-1:35 pm

1 stop32h 10m

$760

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Tue 5/13

11:00 am-9:15 am

2 stops17h 15m

Cardiff Wales

Mon 5/19

9:50 am-4:35 pm

1 stop11h 45m

$823

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 7/2

7:40 pm-8:20 am

2 stops31h 40m

Cardiff Wales

Mon 7/7

12:00 pm-10:35 pm

2 stops15h 35m

$1,893

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Tue 5/13

7:25 am-11:30 am

3 stops23h 05m

Cardiff Wales

Mon 5/19

12:00 pm-12:14 am

3 stops17h 14m

$3,451

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from Boston to Cardiff

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 Cardiff in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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-Cardiff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Cardiff flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Cardiff flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Cardiff 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-Cardiff 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 Boston to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff 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.

Travel insights for flights from Boston to Cardiff

Get recent, data-driven insights about flights from Boston to Cardiff including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Boston to Cardiff?

Currently, February is the cheapest month in which you can book a flight from Boston to Cardiff (average of $773). Flying from Boston to Cardiff in June is currently the most expensive (average of $1,622). 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 CWL?

Find hourly flight availability from Boston to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to Cardiff at noon. If you’re flexible enough to do this you can expect to save up to 5% on your trip compared to booking a flight in the morning.

Rainfall in Cardiff by month

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

In terms of precipitation, rainfall in Cardiff ranges from 2.0 - 3.5 inches per month. January is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Cardiff when rainfall is around 2.0 in.

Temperature in Cardiff by month

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

If weather is an important factor for your trip to Cardiff, 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 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. 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 Cardiff. Reviews last updated January 21, 2025.
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

Aer Lingus
7.1
Good
1,079 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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 Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Boston to Cardiff round-trip?

    Our cheapest airline available from Boston to Cardiff is KLM. Our recent data shows that you can find tickets from as low as $760 on this airline. Additional options worth looking into are Delta and Aer Lingus, starting at $823 and $1,893 round-trip. You may be able to fly from Boston to Cardiff for 31% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to Cardiff 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 Cardiff?

    Currently, February is the cheapest month in which you can book a flight from Boston to Cardiff (average of $773). Flying from Boston to Cardiff in June is currently the most expensive (average of $1,622). 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.

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Top 2 airlines flying from Boston to Cardiff

Discover the top 2 airlines that operate flights from Boston to Cardiff. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$787Average$975FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$808Average$1,308FlexibilityNo cancel feeOn-time75%
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