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Cheap flights from Cardiff to New Hampshire from £345

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — MHT
20 Jan — 27 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to New Hampshire

Enter your travel dates to find the best prices.

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

Fri 26/1210:20CWL - BOS
1 stop32h 00mKLM
Sun 4/120:50BOS - CWL
1 stop32h 00mKLM
Deal found 18/12£1,000
Fri 26/1210:20CWL - BOS
2 stops18h 37mMultiple Airlines
Sun 4/120:50BOS - CWL
1 stop32h 00mMultiple Airlines
Deal found 18/12£1,042
Fri 19/1217:15CWL - BOS
2 stops26h 20mKLM
Fri 2/119:10BOS - CWL
1 stop16h 45mKLM
Deal found 19/12£1,981

Find flight deals from Cardiff to New Hampshire

Keep the following information in mind while searching for Cardiff to New Hampshire flight deals. Data was last updated 21 December 2025.

Round-trip from

£448

One-way from

£345

Popular in

August

Cheapest in

June

Average price

£736
KLM
  • KLM
  • 2/2-9/2
  • 3 total stops
  • 47h 55m total
  • Cardiff to New Hampshire
Search Deals
17/3
  • 17/3
  • 3 total stops
  • 32h 55m total
  • Cardiff to New Hampshire
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to New Hampshire 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 December 2025.
Use the filters below to find and compare flights from Cardiff to New Hampshire that are best for you.

Fly from

Cardiff

Fly to

New Hampshire

Route

Depart

Return

Price

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Mon 2/2

10:20-13:25

1 stop32h 05m

Boston Logan Intl

Mon 9/2

13:00-09:50

2 stops15h 50m

£448

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Mon 4/5

09:45-16:33

1 stop11h 48m

Boston Logan Intl

Wed 13/5

18:50-09:15

1 stop9h 25m

£460

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 4/2

10:20-18:55

1 stop13h 35m

Boston Logan Intl

Wed 11/2

06:00-09:50

2 stops22h 50m

£481

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 6/5

09:45-19:35

2 stops14h 50m

Boston Logan Intl

Wed 13/5

16:35-16:45

1 stop19h 10m

£487

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 6/5

09:45-18:30

1 stop13h 45m

Boston Logan Intl

Fri 15/5

16:35-09:15

1 stop11h 40m

£490

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 5/5

17:15-13:10

1 stop24h 55m

Boston Logan Intl

Fri 15/5

16:35-17:05

1 stop19h 30m

£490

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Mon 4/5

09:45-13:10

1 stop32h 25m

Boston Logan Intl

Fri 15/5

16:35-09:15

1 stop11h 40m

£490

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 6/5

09:45-22:59

2 stops18h 14m

Boston Logan Intl

Fri 15/5

16:35-09:15

1 stop11h 40m

£493

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 5/5

09:45-16:33

1 stop11h 48m

Boston Logan Intl

Thu 14/5

06:00-09:15

2 stops22h 15m

£501

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 17/3

10:40-15:35

3 stops32h 55m

£345

Flights are sorted by cheapest return flights first.

Deals found on 19/12

Showing 1-10 of 11 results
1
2

Best time to book a flight from Cardiff to New Hampshire

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

Cheapflights Insights

Everything you need to know about your flight from Cardiff to New Hampshire
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to New Hampshire. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Cardiff to New Hampshire?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly out of when you book flights from Cardiff to New Hampshire.

  • How long is the flight from Cardiff to New Hampshire?

    A quick flight from Cardiff to New Hampshire can take about 11h 48m. KLM provides one of the quickest options available for as low as £460. There are 3137 mi between Cardiff and New Hampshire. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Cardiff to New Hampshire?

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

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

    Yes. Cheapflights offers flight deals from Cardiff to New Hampshire 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

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