How long is the flight from USA to Cardiff?

Delta, KLM, and Virgin Atlantic can get you from USA to Cardiff in just under 10h 40m. Your travel time can differ by up to 4h 15m. The distance between USA and Cardiff is about 3548 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What is the cheapest month to book a flight from USA to Cardiff?

Currently, January is the cheapest month in which you can book a flight from USA to Cardiff (average of $515). Flying from USA to Cardiff in June is currently the most expensive (average of $1,059). 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.

What is the cheapest day to fly from USA to Cardiff?

Travelers seeking maximum savings on their USA to Cardiff flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Cardiff ranges from 2.0 - 3.5 inches per month. January is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Cardiff when rainfall is around 2.0 in.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

What are the most popular routes from USA to Cardiff?

The most popular route from USA to Cardiff is Chicago O'Hare Intl - Cardiff Wales. You may also consider San Francisco - Cardiff Wales or New York John F Kennedy Intl - Cardiff Wales.

What is the cheapest time of day to fly from US to CWL?

A simple way to save on the total cost of your ticket is to fly from USA to Cardiff in the evening. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight at noon.

What airport do you fly into for flights to Cardiff from United States?

Located just 9.1 mi from the city center, Cardiff Wales (CWL) is the airport most travelers will use when flying to Cardiff from United States.

Can I find deals for flights from USA to Cardiff that include hotel bookings?

Yes. In addition to deals on USA to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from USA to Cardiff?

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

Can I find deals for business class flights from USA to Cardiff?

Yes. Cheapflights offers flight deals from USA 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.

$295+ Flights from the United States to Cardiff

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$442 (Mytrip)
One-way from	$295 (Kiwi.com)
Popular in	January
Cheapest in	December
Average price	$753

KLM's Economy Comfort offers 4 inches extra legroom on long-haul flights, enhancing comfort.

KLM's long-haul premium economy provides extra width and legroom with an upgraded service.

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$644	Average$828	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$791	Average$992	FlexibilityNo cancel fee	On-timeN/A

$295+ Cheap flights from the United States to Cardiff (CWL)

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from USA to Cardiff

Cheapest flights from USA to CardiffExplore the most affordable flight options available from USA to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Explore the most affordable flight options available from USA to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Find flight deals from USA to Cardiff

Keep the following information in mind while searching for USA to Cardiff flight deals. Data was last updated December 12, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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Use the filters below to find and compare flights from the United States to Cardiff that are best for you.

Best time to book a flight from USA to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from USA with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from the United States to Cardiff

What is the cheapest month to book a flight from USA to Cardiff?

What is the cheapest time of day to fly from US to CWL?

Find hourly flight availability from USA to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

What is the cheapest day to fly from USA to Cardiff?

Use this chart to determine the cheapest time to fly round-trip from USA to Cardiff. Price data was last updated on December 16, 2024.

The best insider tips for theUnited States to Cardiff flights

AI-powered summary based on content written by travel experts. AI can make mistakes.

Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Cardiff trip

Airlines

KLM

Delta

Our travel experts

Reviews of airlines servicing Cardiff

See what other customers who have flown with Delta and KLM from the United States to Cardiff have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from USA to Cardiff. 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 into for flights to Cardiff from United States?

How long is the flight from USA to Cardiff?

What are the most popular routes from USA to Cardiff?

Can I find deals for flights from USA to Cardiff that include hotel bookings?

How can I find direct flights from USA to Cardiff?

Can I find deals for business class flights from USA to Cardiff?

What is the cheapest month to book a flight from USA to Cardiff?

Traveling to a place near Cardiff?

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Alternative routes for USA to Cardiff

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Cheapest flights from USA to Cardiff
Explore the most affordable flight options available from USA to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.