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Cheap flights from Cardiff to Boston from £242

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BOS
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Boston

Enter your travel dates to find the best prices.

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 1 July 2026.

Tue 14/723:15
CWL
-
BOS
3 stops24h 07m
Multiple Airlines
Fri 24/714:45
BOS
-
CWL
1 stop14h 30m
Multiple Airlines
Deal found 29/6£490
Tue 8/921:45
CWL
-
BOS
2 stops28h 20m
Multiple Airlines
Tue 15/923:35
BOS
-
CWL
1 stop18h 50m
Multiple Airlines
Deal found 27/6£500
Tue 8/909:45
CWL
-
BOS
1 stop11h 50m
Air France
Tue 15/916:40
BOS
-
CWL
1 stop19h 05m
Air France
Deal found 27/6£608
Tue 14/709:45
CWL
-
BOS
1 stop11h 55m
KLM
Fri 24/716:40
BOS
-
CWL
1 stop19h 25m
KLM
Deal found 29/6£613
Sat 15/807:30
CWL
-
BOS
2 stops30h 35m
Multiple Airlines
Sat 22/817:25
BOS
-
CWL
1 stop22h 55m
Multiple Airlines
Deal found 1/7£625
Tue 8/909:45
CWL
-
BOS
1 stop11h 50m
Delta
Tue 15/916:40
BOS
-
CWL
1 stop11h 35m
Delta
Deal found 27/6£627
Sun 12/717:15
CWL
-
BOS
1 stop28h 25m
Multiple Airlines
Sun 19/719:00
BOS
-
CWL
1 stop9h 15m
Multiple Airlines
Deal found 28/6£630

Find 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 1 July 2026.

Round-trip from

£490

One-way from

£242
14/7-24/7
  • 14/7-24/7
  • 4 total stops
  • 38h 37m total
  • Cardiff to Boston
Search Deals
8/9
  • 8/9
  • 3 total stops
  • 40h 15m total
  • Cardiff to Boston
Search Deals

Cheapflights Fare Finder

 
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 1 July 2026.
Use the filters below to find and compare flights from Cardiff to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 8/9

23:15-18:35

3 stops24h 20m

Boston Logan Intl

Tue 15/9

15:55-23:25

3 stops26h 30m

£570

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Sat 15/8

07:30-09:05

2 stops30h 35m

Boston Logan Intl

Sat 22/8

17:25-21:20

1 stop22h 55m

£625
Fastest return journey

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 8/9

09:45-16:35

1 stop11h 50m

Boston Logan Intl

Tue 15/9

16:40-09:15

1 stop11h 35m

£627

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Sun 12/7

17:15-16:40

1 stop28h 25m

Boston Logan Intl

Sun 19/7

19:00-09:15

1 stop9h 15m

£630

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 14/7

09:45-22:44

2 stops17h 59m

Boston Logan Intl

Fri 24/7

19:00-17:05

1 stop17h 05m

£633

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Thu 13/8

22:50-09:05

2 stops39h 15m

Boston Logan Intl

Thu 20/8

23:40-22:20

1 stop17h 40m

£660

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Sun 12/7

09:50-13:18

1 stop32h 28m

Boston Logan Intl

Sun 19/7

19:00-16:45

1 stop16h 45m

£678
Cheapest one-way

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 8/9

23:15-21:05

2 stops50h 50m

£242

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 1/9

11:35-15:15

1 stop32h 40m

£295

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Fri 4/9

09:45-12:22

2 stops31h 37m

£1,311

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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.

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 1 July 2026.
See what other customers who have flown with Virgin Atlantic from Cardiff to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Overall

7.5

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
689 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Overall

7.5

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

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.

  • How long is the flight from Cardiff to Boston?

    Airlines like Delta fly from Cardiff to Boston in about 11h 50m. The time it takes to get you to your destination can typically vary by up to . The distance from Cardiff to Boston is about 3137 mi.

  • What is the cheapest airline to fly from Cardiff to Boston round-trip?

    Cheapflights users have booked flights from Cardiff to Boston round-trip from £452.

  • 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.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Canton
North Truro
Waltham
Warwick
Cambridge
Peabody
Wellfleet
Revere
Somerville
Quincy
Chelmsford

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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.
Manchester to Boston flights
Bristol to Boston flights
Manchester to Hartford flights
Bristol to Hartford flights
Manchester to Worcester flights
Cardiff to Hartford flights

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 1 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£452Average£493FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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