HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Boston (BOS) to Cardiff (CWL) from $926

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 8/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BOS — CWL
May 29 — Jun 51
From?
To?
Wed 5/29
Wed 6/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 May 24, 2024.

Popular in

December

Cheapest in

October

Average price

$1,324

Round-trip from

$708
High demand for flights, 28% potential price rise
Search Deals
Best time to find cheap flights, 31% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Boston Logan Intl to Cardiff Wales
Search Deals

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

Sunday is generally a great day to depart. Flying on this day could help you save up to 51%.

What is the cheapest month to fly from Boston to Cardiff?

The best pricing can be found in the month of October. Prices to Cardiff from Boston average $1,008. You can even find prices in October for less than $1,008, as users have found deals to Cardiff from as low as $421. The month of December appears to be one of the more expensive times to travel to Cardiff from Boston. Flying in the targeted month can save you up to 38%.

When is the cheapest time to fly from Boston to Cardiff (BOS - CWL)?

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 15% on your trip compared to booking a flight in the morning.

Cheap KLM flights from Boston to Cardiff

Explore cheap flight options specifically provided by KLM for the route between Boston and Cardiff. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,725,499 searches. Data last updated May 24, 2024.
Peruse some of the lowest-priced KLM flights we've found from Boston to Cardiff. Deals update often to give you more flight options matching your criteria
Mon 8/124:55 pmBOS - CWL
1 stop11h 20mKLM
Mon 8/199:45 amCWL - BOS
1 stop11h 55mKLM
Deal found 5/22$1,238
Thu 5/304:35 pmBOS - CWL
1 stop19h 10mKLM
Mon 6/249:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/23$1,297
Thu 5/308:20 pmBOS - CWL
1 stop15h 25mKLM
Mon 6/249:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/23$1,307
Wed 6/194:40 pmBOS - CWL
1 stop11h 35mKLM
Thu 6/279:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/22$1,351
Wed 6/193:29 pmBOS - CWL
2 stops12h 46mKLM
Thu 6/279:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/22$1,355
Wed 6/193:29 pmBOS - CWL
2 stops12h 46mKLM
Thu 6/279:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/22$1,365
Thu 5/3010:35 pmBOS - CWL
2 stops13h 10mKLM
Mon 6/249:45 amCWL - BOS
2 stops15h 04mKLM
Deal found 5/23$1,544
Sun 6/166:50 pmBOS - CWL
1 stop9h 25mKLM
Wed 6/199:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/22$1,638
Sun 6/168:25 pmBOS - CWL
1 stop15h 20mKLM
Wed 6/199:45 amCWL - BOS
2 stops15h 04mKLM
Deal found 5/22$1,648

Cheap Delta flights from Boston to Cardiff

Explore cheap flight options specifically provided by Delta for the route between Boston and Cardiff. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,725,499 searches. Data last updated May 24, 2024.
Have a look at some of the cheapest available Delta flights departing from Boston and landing in Cardiff. Make sure to examine the flight information before completing your reservation.
Mon 8/124:55 pmBOS - CWL
1 stop11h 20mDelta
Mon 8/199:45 amCWL - BOS
2 stops19h 10mDelta
Deal found 5/22$1,047
Mon 8/123:34 pmBOS - CWL
2 stops12h 41mDelta
Mon 8/199:45 amCWL - BOS
2 stops19h 10mDelta
Deal found 5/22$1,051
Thu 7/184:50 pmBOS - CWL
1 stop11h 25mDelta
Thu 7/259:45 amCWL - BOS
1 stop11h 55mDelta
Deal found 5/22$1,368

Cheap Boston to Cardiff flights in May & June 2024

Find cheap flight options from Boston to Cardiff specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,725,499 searches. Prices were last updated on May 24, 2024.
Check out some of the best flight deals from Boston to Cardiff in 2024. Check back regularly for other flight deals.
Thu 5/304:35 pmBOS - CWL
1 stop19h 10mKLM
Mon 6/249:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/23$1,297
Thu 5/308:20 pmBOS - CWL
1 stop15h 25mVirgin Atlantic
Mon 6/249:45 amCWL - BOS
2 stops17h 50mVirgin Atlantic
Deal found 5/23$1,305
Thu 5/308:20 pmBOS - CWL
1 stop15h 25mKLM
Mon 6/249:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/23$1,307
Thu 5/3010:35 pmBOS - CWL
2 stops13h 10mKLM
Mon 6/249:45 amCWL - BOS
2 stops15h 04mKLM
Deal found 5/23$1,544
Mon 6/178:20 pmBOS - CWL
2 stops34h 10mBritish Airways
Thu 6/2012:00 pmCWL - BOS
2 stops12h 50mBritish Airways
Deal found 5/23$1,546
Mon 6/174:40 pmBOS - CWL
1 stop19h 05mKLM
Wed 6/199:45 amCWL - BOS
2 stops15h 04mKLM
Deal found 5/23$1,575
Mon 6/177:15 pmBOS - CWL
3 stops19h 30mMultiple Airlines
Thu 6/208:15 pmCWL - BOS
3 stops26h 45mMultiple Airlines
Deal found 5/23$1,577
Mon 6/176:50 pmBOS - CWL
1 stop9h 25mKLM
Wed 6/199:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/23$1,623
Mon 6/174:05 pmBOS - CWL
2 stops22h 40mMultiple Airlines
Thu 6/208:15 pmCWL - BOS
3 stops26h 45mMultiple Airlines
Deal found 5/23$1,626

Boston to Cardiff 2024 flight deals

Discover exclusive flight deals for travel between Boston and Cardiff in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,725,499 searches. Data last updated May 24, 2024.
Check out some of the best flight deals from Boston to Cardiff in 2024. Check back regularly for other flight deals.
Fri 8/28:25 pmBOS - CWL
1 stop15h 20mVirgin Atlantic
Sun 9/19:45 amCWL - BOS
2 stops20h 29mVirgin Atlantic
Deal found 5/23$926
Mon 9/307:35 amBOS - CWL
2 stops22h 55mBritish Airways
Mon 10/712:00 pmCWL - BOS
2 stops33h 50mBritish Airways
Deal found 5/23$995
Fri 8/28:25 pmBOS - CWL
1 stop15h 20mVirgin Atlantic
Sun 9/19:45 amCWL - BOS
1 stop13h 45mVirgin Atlantic
Deal found 5/23$1,018
Fri 8/27:10 pmBOS - CWL
2 stops35h 20mBritish Airways
Sun 9/112:00 pmCWL - BOS
2 stops53h 10mBritish Airways
Deal found 5/23$1,082
Mon 9/304:50 pmBOS - CWL
1 stop18h 55mAir France
Mon 10/75:15 pmCWL - BOS
1 stop30h 15mAir France
Deal found 5/23$1,110
Mon 9/303:34 pmBOS - CWL
2 stops20h 11mAir France
Mon 10/75:15 pmCWL - BOS
1 stop30h 15mAir France
Deal found 5/23$1,114
Fri 7/198:25 pmBOS - CWL
1 stop15h 20mAir France
Thu 7/255:15 pmCWL - BOS
1 stop28h 25mAir France
Deal found 5/23$1,204
Fri 7/198:25 pmBOS - CWL
1 stop15h 20mAir France
Thu 7/255:15 pmCWL - BOS
2 stops30h 34mAir France
Deal found 5/23$1,214
Thu 5/304:35 pmBOS - CWL
1 stop19h 10mKLM
Mon 6/249:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/23$1,297

Boston to Cardiff flights leaving soon

Find last-minute flight options from Boston to Cardiff for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,725,499 searches. Data last updated May 24, 2024.
Book one of these great deals on flights from Boston to Cardiff. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 5/304:35 pmBOS - CWL
1 stop19h 10mKLM
Mon 6/249:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/23$1,297
Thu 5/308:20 pmBOS - CWL
1 stop15h 25mVirgin Atlantic
Mon 6/249:45 amCWL - BOS
2 stops17h 50mVirgin Atlantic
Deal found 5/23$1,305
Thu 5/308:20 pmBOS - CWL
1 stop15h 25mKLM
Mon 6/249:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/23$1,307
Thu 5/3010:35 pmBOS - CWL
2 stops13h 10mKLM
Mon 6/249:45 amCWL - BOS
2 stops15h 04mKLM
Deal found 5/23$1,544

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 2,725,499 searches. Data last updated May 24, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$926 - $1,401

Route

Depart

Return

Price

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Fri 8/2

1 stop15h 20m

Cardiff Wales

Sun 9/1

2 stops20h 29m

$926

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 9/30

2 stops22h 55m

Cardiff Wales

Mon 10/7

2 stops33h 50m

$995

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Fri 8/2

1 stop15h 20m

Cardiff Wales

Sun 9/1

1 stop13h 45m

$1,018

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 8/12

1 stop11h 20m

Cardiff Wales

Mon 8/19

2 stops19h 10m

$1,047

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 8/12

2 stops12h 41m

Cardiff Wales

Mon 8/19

2 stops19h 10m

$1,051

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Fri 8/2

2 stops35h 20m

Cardiff Wales

Sun 9/1

2 stops53h 10m

$1,082

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 9/30

1 stop18h 55m

Cardiff Wales

Mon 10/7

1 stop30h 15m

$1,110

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 8/12

1 stop11h 20m

Cardiff Wales

Mon 8/19

1 stop11h 55m

$1,238

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 9/4

2 stops18h 40m

Cardiff Wales

Thu 9/5

2 stops27h 35m

$1,401

Flights are sorted by cheapest first

Deals found on 5/23

When is the cheapest time to fly from Boston to Cardiff?

Use this chart to determine the cheapest time to fly round-trip from Boston to Cardiff. Price data was last updated on May 19, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boston to Cardiff flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Cardiff by month

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

CWL

Temperature

39.2 - 64.4 °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 May 24, 2024.
Get a feel of what it's like to fly with KLM, Delta and British Airways from Boston to Cardiff by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,561 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,561 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,549 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.7
Good
728 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.6
Good
1,751 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

British Airways
6.8
Okay
6,788 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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.

  • Can I find flights from Boston to Cardiff for under $1,000 on Cheapflights?

    Yes, there are multiple flights from Boston to Cardiff for under $1,000. The cheapest flight booked recently is on Virgin Atlantic for just $926, but on average you can expect to pay $1,187.

  • Are there last-minute flights available from Boston to Cardiff for under $1,300?

    There are currently 4+ open flights from Boston to Cardiff within the next 7 days for less than $1,300.

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

    Our cheapest airline available from Boston to Cardiff is Virgin Atlantic. Our recent data shows that you can find tickets from as low as $926 on this airline. Additional options worth looking into are British Airways and Delta, starting at $995 and $1,047 round-trip. You may be able to fly from Boston to Cardiff for 8% less than the average price by searching for these airlines.

  • What does BOS to CWL mean?

    This is defined as Boston Logan Intl Airport (BOS) and Cardiff Wales Airport (CWL). Codes like Cardiff Wales Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Boston to Cardiff that include extra baggage allowance?

    The amount of baggage you can bring on your Boston to Cardiff flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Boston to Cardiff with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boston to Cardiff flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by 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.

  • Can I find deals for flights from Boston to Cardiff that allow pets onboard?

    Many airlines flying from Boston to Cardiff offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Boston to Cardiff?

    Yes, you can often find last-minute deals on Boston to Cardiff flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Boston to Cardiff flight deals updated?

    The Boston to Cardiff flight deals you see on this page were last updated on 5/23.

  • When is the best time to book a flight from Boston to Cardiff?

    Currently, January is the cheapest month in which you can book a flight from Boston to Cardiff (average of $708). Flying from Boston to Cardiff in June is currently the most expensive (average of $1,565). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Boston to Manchester flights
Boston to Bristol flights
Hartford to Manchester flights
Albany to Bristol flights
Albany to Manchester flights
Hartford to Bristol flights
Hartford to Cardiff flights

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 2,725,499 searches. Data last updated May 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$666Average$1,008FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest$701Average$921FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Minneapolis to Fort Myers flights
USA to Philippines flights
Los Angeles to Kansas City flights
Chicago to Phoenix flights
Omaha to Chicago flights
Los Angeles to Orlando flights
Phoenix to Chicago flights
Austin to Chicago flights
Los Angeles to Chicago flights
Las Vegas to Hawaii flights
Charlotte to Nashville flights
Boston to Nha Trang flights

Search flights from Boston to Cardiff by cabin class

Find flights from Boston to Cardiff, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Neiva La Marguita
Flights to Hyannis Barnstable
Flights to Laayoune Hassan I
Flights to Edremit/Korfez
Flights to Vava'u Lupepau'U
Flights to Surigao
Flights to Melilla
Flights to Virac
Flights to Rhinelander Oneida County
Flights to Cornwall Newquay
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Mason City
Flights to Ningbo Lishe Intl
Flights to Miyakojima Hirara
Flights to Kirkwall Arpt
Flights to Girona Costa Brava
Flights to Provincetown
Flights to Perugia Sant Egidio
Flights to Samos
Flights to Constanţa Mihail Kogalniceanu
Flights to Dharamshala Kangra
Flights to Dalaman
Flights to Pellston Emmet County

Fly with Cheapflights

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

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

Deals for Boston to Cardiff flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Boston to Cardiff by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Boston to Cardiff with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines