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Cheap flights from Cardiff to Boston from £276

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 29/3. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BOS
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Cardiff to Boston

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

Round-trip from

£484

One-way from

£276

Popular in

February

Cheapest in

September

Average price

£516
Virgin Atlantic
  • Virgin Atlantic
  • 5/3-12/3
  • 4 total stops
  • 40h 57m total
  • Cardiff to Boston
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29/3
  • 29/3
  • 3 total stops
  • 40h 25m total
  • Cardiff to Boston
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Highest demand for flights based on searches. 1% potential increase in price (£6 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
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Average for round-trip flights in January 2025
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Find flight deals from Cardiff to Boston

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

Wed 5/310:20CWL - BOS
2 stops17h 07mVirgin Atlantic
Wed 12/306:00BOS - CWL
2 stops23h 50mVirgin Atlantic
Deal found 20/1£484
Wed 5/310:20CWL - BOS
1 stop13h 55mKLM
Wed 12/322:15BOS - CWL
1 stop14h 40mKLM
Deal found 20/1£495
Thu 22/509:50CWL - BOS
1 stop11h 45mDelta
Mon 2/616:40BOS - CWL
1 stop11h 35mDelta
Deal found 20/1£590
Wed 5/317:25CWL - BOS
3 stops31h 40mMultiple Airlines
Wed 12/319:10BOS - CWL
2 stops17h 45mMultiple Airlines
Deal found 20/1£756

Find flights from Cardiff to Boston within your budget

Customise your flight search to find flights from Cardiff to Boston 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 858,174 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 5/3

10:20-22:27

2 stops17h 07m

Boston Logan Intl

Wed 12/3

06:00-09:50

2 stops23h 50m

£484

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 5/3

10:20-19:15

1 stop13h 55m

Boston Logan Intl

Wed 12/3

22:15-16:55

1 stop14h 40m

£495

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Thu 22/5

09:50-16:35

1 stop11h 45m

Boston Logan Intl

Mon 2/6

16:40-09:15

1 stop11h 35m

£590

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 5/3

17:25-20:05

3 stops31h 40m

Boston Logan Intl

Wed 12/3

19:10-16:55

2 stops17h 45m

£756

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Sat 29/3

09:45-22:10

3 stops40h 25m

£276

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Best time to book a flight from Cardiff to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Cardiff with our price prediction graph.
Estimated return 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 Cardiff to Boston

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

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

Currently, October is the cheapest month in which you can book a flight from Cardiff to Boston (average of £10). Flying from Cardiff to Boston in July is currently the most expensive (average of £724). 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.

Rainfall in Boston by month

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

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

Temperature in Boston by month

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

If weather is an important factor for your trip to Boston, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated 21 January 2025.
Delta
8.0
Very Good
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,521 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
665 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Boston. 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 Cardiff to Boston round-trip?

    Cheapflights users have booked flights from Cardiff to Boston round-trip from £484. Other airlines that can offer you cheap pricing are KLM, from £495, and Delta, from £590. Virgin Atlantic is currently priced 25% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Cardiff to Boston (average of £10). Flying from Cardiff to Boston in July is currently the most expensive (average of £724). 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

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Cambridge
Chelsea
Burlington
Chelmsford
Kittery

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Alternative routes for Cardiff to Boston

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Cardiff to Boston

Discover the top airline that operate flights from Cardiff to Boston. 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 858,174 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£445Average£553FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cardiff to Boston?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Cardiff to Boston. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Boston?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Boston from Cardiff.

Can Cheapflights find flights from Cardiff to Boston with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Cardiff to Boston, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Cardiff to Boston become cheaper?

Yes! Start tracking prices for Cardiff to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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