Find flights
When to book
FAQs

Cheap flights from Idaho to Cardiff from £630

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CWL
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Idaho to Cardiff

Keep the following information in mind while searching for Idaho to Cardiff flight deals. Data was last updated 17 September 2025.

Round-trip from

£630
KLM
  • KLM
  • 10/11-19/11
  • 4 total stops
  • 60h 55m total
  • Idaho to Cardiff
Search Deals

Find flight deals from Idaho to Cardiff

Cheapest flights from Idaho to Cardiff
Explore the most affordable flight options available from Idaho to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Mon 10/1109:00BOI - CWL
2 stops24h 55mKLM
Wed 19/1117:25CWL - BOI
2 stops36h 00mKLM
Deal found 15/9£630
Wed 3/1205:35BOI - CWL
2 stops28h 20mVirgin Atlantic
Sun 7/1217:30CWL - BOI
2 stops33h 50mVirgin Atlantic
Deal found 16/9£666
Wed 3/1211:44BOI - CWL
2 stops22h 11mDelta
Sun 7/1210:20CWL - BOI
2 stops42h 38mDelta
Deal found 14/9£696

Cheapflights Fare Finder

 
Customise your flight search to find flights from Idaho 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 858,174 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Idaho to Cardiff that are best for you.

Fly from

Idaho

Fly to

Cardiff

Route

Depart

Return

Price

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

Mon 10/11

09:00-16:55

2 stops24h 55m

Cardiff Wales

Wed 19/11

17:25-22:25

2 stops36h 00m

£630

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

Wed 3/12

05:35-16:55

2 stops28h 20m

Cardiff Wales

Sun 7/12

17:30-20:20

2 stops33h 50m

£666

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

Wed 3/12

11:44-16:55

2 stops22h 11m

Cardiff Wales

Sun 7/12

10:20-21:58

2 stops42h 38m

£696

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Best time to book a flight from Idaho to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Idaho 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 Idaho to Cardiff
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 Idaho 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 Idaho?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from Idaho to Cardiff.

  • How long is the flight from Idaho to Cardiff?

    Departing from Idaho to Cardiff will take you 22h 11m. There are 4745 mi between Idaho and Cardiff. Both multi-stop and direct flights can be found to your destination and back.

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

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

  • How can I find direct flights from Idaho to Cardiff?

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

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

    Yes. Cheapflights offers flight deals from Idaho 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.

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

    Currently, July is the cheapest month in which you can book a flight from Idaho to Cardiff (average of £169). Flying from Idaho to Cardiff in December is currently the most expensive (average of £263). 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.

See more FAQs

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Cardiff

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Manchester flights
Denver to Bristol flights
Newark to Manchester flights
LaGuardia to Manchester flights
John F Kennedy Intl to Bristol flights
Newark to Bristol flights
Boston to Manchester flights
Dallas/Fort Worth to Bristol flights
Dulles Intl to Manchester flights
Baltimore to Manchester flights
O'Hare Intl to Bristol flights
Reagan-National to Manchester flights
O'Hare Intl to Manchester flights
San Francisco to Manchester flights
Seattle to Bristol flights
Orlando to Manchester flights
Atlanta to Manchester flights
Boston to Bristol flights
Los Angeles to Manchester flights
Sky Harbor Intl to Manchester flights
Ontario to Manchester flights
Santa Ana to Manchester flights
Los Angeles to Bristol flights
Seattle to Manchester flights
Philadelphia to Manchester flights
Dallas/Fort Worth to Manchester flights
Orlando to Bristol flights
Midway to Manchester flights
Hobby to Manchester flights
Raleigh to Manchester flights
Portland to Manchester flights
Atlanta to Bristol flights
Miami to Manchester flights
Nashville to Manchester flights
Dulles Intl to Bristol flights
San Francisco to Bristol flights
George Bush Intcntl to Manchester flights
Indianapolis to Manchester flights
Charlotte to Manchester flights
Detroit to Manchester flights
Denver to Manchester flights
Tampa to Manchester flights
John F Kennedy Intl to Cardiff flights
San Diego to Manchester flights
Jacksonville to Manchester flights
Cincinnati to Manchester flights
San Jose to Manchester flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Idaho to Cardiff?

Deals for Idaho 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 Idaho to Cardiff?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Idaho to Cardiff for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Idaho to Cardiff with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Idaho to Cardiff, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Idaho to Cardiff become cheaper?

Yes! Start tracking prices for Idaho to Cardiff flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.