CWL - BOS

$397 Find Cheap Flights from Cardiff to Boston

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 Boston departing on 5/26. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Boston, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$758
KLM
Wed 4/22Wed 4/29
CWL - BOS • 1 stop
Cheapest one-way
$397
Multiple Airlines
Tue 5/26
CWL - BOS • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Cardiff and Boston. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Cardiff to Boston (CWL-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Cardiff to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cardiff to Boston

Wed, Apr 22 - Wed, Apr 29
KLM Logo
9:45 am - 4:25 pm
CWL
-
BOS
11h 40m
1 stop
KLM Logo
8:25 pm - 4:45 pm
BOS
-
CWL
15h 20m
1 stop
$758KLM
Wed, Apr 15 - Wed, Apr 22
KLM Logo
9:45 am - 6:30 pm
CWL
-
BOS
13h 45m
1 stop
KLM Logo
4:35 pm - 4:45 pm
BOS
-
CWL
19h 10m
1 stop
$776KLM
Tue, Apr 28 - Tue, May 5
KLM Logo
5:15 pm - 1:13 pm
CWL
-
BOS
24h 58m
1 stop
KLM Logo
1:30 pm - 9:15 am
BOS
-
CWL
14h 45m
2 stops
$779KLM
Wed, Apr 22 - Wed, Apr 29
KLM Logo
9:45 am - 4:25 pm
CWL
-
BOS
11h 40m
1 stop
KLM Logo
8:25 pm - 9:15 am
BOS
-
CWL
31h 50m
1 stop
$784KLM
Wed, Apr 22 - Wed, Apr 29
KLM Logo
9:45 am - 4:25 pm
CWL
-
BOS
11h 40m
1 stop
KLM Logo
9:45 pm - 4:45 pm
BOS
-
CWL
14h 00m
2 stops
$787KLM
Wed, Apr 15 - Wed, Apr 22
KLM Logo
9:45 am - 4:25 pm
CWL
-
BOS
11h 40m
1 stop
KLM Logo
8:59 pm - 9:15 am
BOS
-
CWL
31h 16m
2 stops
$802KLM
Wed, Apr 22 - Wed, Apr 29
Delta Logo
9:45 am - 11:27 pm
CWL
-
BOS
18h 42m
2 stops
Delta Logo
12:30 pm - 9:15 am
BOS
-
CWL
15h 45m
2 stops
$813Delta
Wed, Apr 15 - Wed, Apr 22
Delta Logo
9:45 am - 11:07 pm
CWL
-
BOS
18h 22m
2 stops
Delta Logo
12:30 pm - 9:15 am
BOS
-
CWL
15h 45m
2 stops
$817Delta
Tue, Apr 28 - Tue, May 5
KLM Logo
9:45 am - 7:35 pm
CWL
-
BOS
14h 50m
2 stops
KLM Logo
1:30 pm - 9:15 am
BOS
-
CWL
14h 45m
2 stops
$820KLM
Tue, Apr 14 - Tue, Apr 21
KLM Logo
5:15 pm - 4:25 pm
CWL
-
BOS
28h 10m
1 stop
KLM Logo
4:35 pm - 4:45 pm
BOS
-
CWL
19h 10m
1 stop
$837KLM
Booking Insights

KAYAK's insights & trends for Cardiff to Boston flights

Get data-powered insights and trends into flights from Cardiff to Boston to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Cardiff to Boston?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Cardiff to Boston were found on KLM ($758) and Delta ($813).

Find deals

Good to know

Cheapest flight$397
Flight from Cardiff to Boston

When to book flights from Cardiff to Boston

Are your dates flexible? Find out the best times to travel from Cardiff to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Cardiff to Boston

  • What is the cheapest flight from Cardiff to Boston?

    In the last 3 days, the lowest price for a flight from Cardiff to Boston was $397 for a one-way ticket and $758 for a round-trip.

  • Do I need a passport to fly between Cardiff and Boston?

    Yes, you’ll need a passport to travel to Boston from Cardiff.

  • Which airports will I be using when flying from Cardiff to Boston?

    Cardiff and Boston are both served by 1 main airport. You will leave Cardiff from Cardiff Wales and will be arriving at Boston Logan Intl.

  • Which aircraft models fly most regularly from Cardiff to Boston?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Cardiff to Boston?

    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 Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston 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 Boston?

    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 Boston with an airline and back to Cardiff with another airline. Booking your flights between Cardiff and BOS can sometimes prove cheaper using this method.

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

    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 Boston from Cardiff up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Cardiff to Boston

Information on your arrival and departure airports

Cardiff (CWL)
Boston (BOS)