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Find cheap flights from Cardiff to the United States from $410

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to the United States departing on 11/5. 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.
1 adult
0 bags
sáb. 6/29
sáb. 7/6

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Best United States Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

New York
New York1 stop$611
Boston
Boston2 stops$835
Philadelphia
Philadelphia2 stops$976

Good to know

Low season

March

High season

November

Cheapest flight

$410
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Cardiff to Boston

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Cardiff to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United States from Cardiff is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to the United States with an airline and back to Cardiff with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to the United States from Cardiff up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to the United States

  • Morning departure is around 7% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airline flying from Cardiff to the United States

 
Need help choosing which airline to fly with from Cardiff to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10457 reviews
7.4Food
7.9Comfort
8.6Crew
8.2Boarding
8.0Entertainment
Airline reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

10.0 ExcellentMichael, May 2024SJC - ATL
Read more about Delta reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

The comfort is typical of what I would expect from main cabin. I've been on flights with other airlines where the seats needed to be changed, the cushions were non-existent. So happy this was not the case. I enjoyed the movie selection. Happy pillow and blanket was provided since I forgot my own. The food was also ok. Great that we arrived early and my luggage arrived undamaged. Again in the past (not with Delta), luggage was lost or broken.

Crew went over and above to be helpful. Plane had mechanical problems that caused us to depart late.

The 676 plane is much more comfortable in business class than the A330 and he food was a little better. I didn’t use the entertainment.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Book cheap flights from Cardiff to the United States

Recent round-trip flight deals

11/21jue.
1 stopKLM
13h 35mCWL-JFK
11/24dom.
1 stopKLM
17h 10mJFK-CWL
$611
11/21jue.
2 stopsDelta
17h 05mCWL-JFK
11/24dom.
1 stopDelta
10h 55mJFK-CWL
$618
9/12jue.
1 stopKLM
32h 30mCWL-JFK
9/18mié.
1 stopKLM
31h 00mJFK-CWL
$619
9/12jue.
2 stopsDelta
18h 32mCWL-JFK
9/18mié.
1 stopDelta
11h 35mJFK-CWL
$620
9/12jue.
2 stopsDelta
14h 42mCWL-EWR
9/18mié.
2 stopsDelta
13h 30mEWR-CWL
$620
6/16dom.
1 stopVirgin Atlantic
10h 40mCWL-JFK
6/20jue.
1 stopVirgin Atlantic
17h 15mJFK-CWL
$848
6/14vie.
1 stopAir France
13h 45mCWL-BOS
6/18mar.
1 stopAir France
15h 20mBOS-CWL
$855
6/14vie.
2 stopsAir France
35h 12mCWL-BOS
6/18mar.
1 stopAir France
15h 20mBOS-CWL
$863
6/27jue.
2 stopsBritish Airways
33h 10mCWL-JFK
7/4jue.
2 stopsBritish Airways
21h 01mJFK-CWL
$965
7/15lun.
2 stopsVirgin Atlantic
14h 45mCWL-EWR
7/27sáb.
2 stopsVirgin Atlantic
15h 15mEWR-CWL
$1,303

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Recent one-way flight deals

11/5mar.
3 stops
29h 55mCWL-BOS
$410
11/5mar.
2 stops
26h 40mCWL-BOS
$569
7/4jue.
3 stops
42h 01mCWL-BOS
$595
7/4jue.
2 stops
23h 25mCWL-BOS
$661
7/4jue.
1 stopKLM
30h 15mCWL-BOS
$1,177
11/5mar.
1 stopKLM
12h 20mCWL-BOS
$1,477

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