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Cheap flights from Boston (BOS) to Cardiff (CWL) from $504

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 10/24. 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 11 — May 181
From?
To?
Sat 5/11
Sat 5/18
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 May 6, 2024.

Popular in

December

Cheapest in

October

Average price

$1,324

Round-trip from

$708
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 31% potential price drop
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Average for round-trip flights in May 2024
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From Boston Logan Intl to Cardiff Wales
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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 52%.

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 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 2,689,106 searches. Data last updated May 6, 2024.
Peruse some of the lowest-priced Delta flights we've found from Boston to Cardiff. Deals update often to give you more flight options matching your criteria
Thu 10/2411:00 amBOS - CWL
2 stops17h 15mDelta
Fri 11/16:00 amCWL - BOS
1 stop12h 20mDelta
Deal found 5/6$894
Thu 10/241:05 pmBOS - CWL
2 stops15h 10mDelta
Fri 11/16:00 amCWL - BOS
2 stops15h 47mDelta
Deal found 5/6$904
Fri 7/197:00 pmBOS - CWL
1 stop9h 15mDelta
Thu 7/259:45 amCWL - BOS
1 stop11h 50mDelta
Deal found 5/5$1,120
Fri 7/1911:00 amBOS - CWL
2 stops17h 15mDelta
Thu 7/259:45 amCWL - BOS
2 stops17h 49mDelta
Deal found 5/5$1,134

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 2,689,106 searches. Data last updated May 6, 2024.
Have a look at some of the cheapest available KLM flights departing from Boston and landing in Cardiff. Make sure to examine the flight information before completing your reservation.
Wed 6/56:50 pmBOS - CWL
1 stop16h 55mKLM
Wed 6/129:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/6$1,110
Wed 6/53:30 pmBOS - CWL
2 stops12h 45mKLM
Wed 6/129:45 amCWL - BOS
1 stop13h 45mKLM
Deal found 5/6$1,114
Wed 6/53:30 pmBOS - CWL
2 stops12h 45mKLM
Wed 6/129:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/6$1,124
Mon 5/204:35 pmBOS - CWL
1 stop11h 40mKLM
Thu 5/235:15 pmCWL - BOS
2 stops25h 25mKLM
Deal found 5/5$1,127
Mon 5/203:30 pmBOS - CWL
2 stops12h 45mKLM
Thu 5/235:15 pmCWL - BOS
2 stops25h 25mKLM
Deal found 5/5$1,132
Thu 6/134:40 pmBOS - CWL
1 stop11h 35mKLM
Mon 6/179:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/5$1,135
Thu 6/133:29 pmBOS - CWL
2 stops12h 46mKLM
Mon 6/179:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/5$1,139
Thu 6/133:29 pmBOS - CWL
2 stops12h 46mKLM
Mon 6/179:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/5$1,150
Sun 5/268:20 pmBOS - CWL
1 stop15h 25mKLM
Fri 5/319:45 amCWL - BOS
1 stop13h 45mKLM
Deal found 5/5$1,215

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 2,689,106 searches. Prices were last updated on May 6, 2024.
Check out some of the best flight deals from Boston to Cardiff in 2024. Check back regularly for other flight deals.
Wed 6/56:50 pmBOS - CWL
1 stop16h 55mKLM
Wed 6/129:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/6$1,110
Wed 6/53:30 pmBOS - CWL
2 stops12h 45mKLM
Wed 6/129:45 amCWL - BOS
1 stop13h 45mKLM
Deal found 5/6$1,114
Wed 6/53:30 pmBOS - CWL
2 stops12h 45mKLM
Wed 6/129:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/6$1,124
Mon 5/204:35 pmBOS - CWL
1 stop11h 40mKLM
Thu 5/235:15 pmCWL - BOS
2 stops25h 25mKLM
Deal found 5/5$1,127
Mon 5/203:30 pmBOS - CWL
2 stops12h 45mKLM
Thu 5/235:15 pmCWL - BOS
2 stops25h 25mKLM
Deal found 5/5$1,132
Thu 6/134:40 pmBOS - CWL
1 stop11h 35mKLM
Mon 6/179:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/5$1,135
Thu 6/133:29 pmBOS - CWL
2 stops12h 46mKLM
Mon 6/179:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/5$1,139
Thu 6/133:29 pmBOS - CWL
2 stops12h 46mKLM
Mon 6/179:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/5$1,150
Sun 5/268:20 pmBOS - CWL
1 stop15h 25mKLM
Fri 5/319:45 amCWL - BOS
1 stop13h 45mKLM
Deal found 5/5$1,215

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 2,689,106 searches. Data last updated May 6, 2024.
Check out some of the best flight deals from Boston to Cardiff in 2024. Check back regularly for other flight deals.
Sun 11/179:10 pmBOS - CWL
1 stop31h 35mDelta
Thu 11/216:00 amCWL - BOS
1 stop12h 20mDelta
Deal found 5/5$930
Sun 11/177:00 amBOS - CWL
2 stops21h 45mDelta
Thu 11/216:00 amCWL - BOS
1 stop12h 20mDelta
Deal found 5/5$935
Sun 11/173:34 pmBOS - CWL
2 stops13h 11mDelta
Thu 11/216:00 amCWL - BOS
2 stops17h 10mDelta
Deal found 5/5$985
Wed 6/56:50 pmBOS - CWL
1 stop16h 55mKLM
Wed 6/129:45 amCWL - BOS
1 stop11h 50mKLM
Deal found 5/6$1,110
Wed 6/53:30 pmBOS - CWL
2 stops12h 45mKLM
Wed 6/129:45 amCWL - BOS
1 stop13h 45mKLM
Deal found 5/6$1,114
Fri 7/197:00 pmBOS - CWL
1 stop9h 15mDelta
Thu 7/259:45 amCWL - BOS
1 stop11h 50mDelta
Deal found 5/5$1,120
Wed 6/53:30 pmBOS - CWL
2 stops12h 45mKLM
Wed 6/129:45 amCWL - BOS
2 stops13h 55mKLM
Deal found 5/6$1,124
Mon 5/204:35 pmBOS - CWL
1 stop11h 40mKLM
Thu 5/235:15 pmCWL - BOS
2 stops25h 25mKLM
Deal found 5/5$1,127
Mon 5/203:30 pmBOS - CWL
2 stops12h 45mKLM
Thu 5/235:15 pmCWL - BOS
2 stops25h 25mKLM
Deal found 5/5$1,132

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 2,689,106 searches. Data last updated May 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$504 - $1,432

Route

Depart

Return

Price

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Thu 10/24

1 stop10h 25m

Cardiff Wales

Fri 11/1

1 stop11h 20m

$504

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Thu 10/24

2 stops17h 15m

Cardiff Wales

Fri 11/1

1 stop12h 20m

$894

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Thu 10/24

2 stops15h 10m

Cardiff Wales

Fri 11/1

2 stops15h 47m

$904

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 6/5

1 stop16h 55m

Cardiff Wales

Wed 6/12

1 stop11h 50m

$1,110

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 6/5

2 stops12h 45m

Cardiff Wales

Wed 6/12

1 stop13h 45m

$1,114

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Fri 7/19

1 stop9h 15m

Cardiff Wales

Thu 7/25

1 stop11h 50m

$1,120

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 6/5

2 stops12h 45m

Cardiff Wales

Wed 6/12

2 stops13h 55m

$1,124

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 6/17

1 stop16h 55m

Cardiff Wales

Mon 7/1

1 stop25h 25m

$1,358

Boston Logan IntlCardiff Wales

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 9/4

2 stops18h 40m

Cardiff Wales

Thu 9/5

2 stops27h 35m

$1,432

Flights are sorted by cheapest first

Deals found on 5/6

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 5, 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.
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Average price of flights to Cardiff by month

Plan your trip from Boston to Cardiff by taking into account the cheapest months to travel. The average price of a one-way flight from Boston to Cardiff is currently $0 while a round-trip flight costs $1,062. Price data was last updated on April 28, 2024.

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.

January

$708

February

$726

March

$897

April

$784

May

$946

June

$1,565

July

$1,315

August

$998

September

$859

October

$825

November

$901

December

$816

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 6, 2024.
Get a feel of what it's like to fly with Delta, KLM and Virgin Atlantic 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
8.1
Very good
10,818 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Food

7.4

Boarding

8.2

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
8.1
Very good
10,818 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Food

7.4

Boarding

8.2

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
1,602 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Food

7.4

Boarding

8.2

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
740 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Food

7.4

Boarding

8.2

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.

PLAY
7.2
Good
67 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Crew

8.6

Entertainment

8.0

Comfort

7.9

Overall

8.1

Food

7.4

Boarding

8.2

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 $600 on Cheapflights?

    Yes, there are multiple flights from Boston to Cardiff for under $600. The cheapest flight booked recently is on PLAY for just $504, but on average you can expect to pay $1,139.

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

    Our cheapest airline available from Boston to Cardiff is PLAY. Our recent data shows that you can find tickets from as low as $504 on this airline. Additional options worth looking into are Delta and KLM, starting at $894 and $1,110 round-trip. You may be able to fly from Boston to Cardiff for 49% 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 5/6.

See more FAQs

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Other flights to Cardiff
Explore flights to Cardiff departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 6, 2024.

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Cardiff to Dublin 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 2,689,106 searches. Data last updated May 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$675Average$1,071FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest$701Average$921FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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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.
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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!

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