Find flights
When to book
FAQs

Cheap flights from Cardiff to Boise from £716

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BOI
3 Sep — 10 Sep1
1 adult

Cheap flight deals from Cardiff to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 August 2025.

Round-trip from

£716
Delta
  • Delta
  • 7/11-10/11
  • 4 total stops
  • 68h 56m total
  • Cardiff to Boise
Search Deals

Find flight deals from Cardiff to Boise

Cheapest flights from Cardiff to Boise
Explore the most affordable flight options available from Cardiff to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Fri 7/1110:20CWL - BOI
2 stops40h 56mDelta
Mon 10/1105:55BOI - CWL
2 stops28h 00mDelta
Deal found 27/8£716
Fri 7/1117:25CWL - BOI
2 stops32h 26mVirgin Atlantic
Mon 10/1105:35BOI - CWL
2 stops28h 20mVirgin Atlantic
Deal found 28/8£718

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Boise 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 29 August 2025.
Use the filters below to find and compare flights from Cardiff to Boise that are best for you.

Fly from

Cardiff

Fly to

Boise

Route

Depart

Return

Price

CardiffBoise

CWL - BOI

CWLBOI

Cardiff Wales

Fri 7/11

10:20-20:16

2 stops40h 56m

Boise Air Term. Gowen Fld

Mon 10/11

05:55-16:55

2 stops28h 00m

£716

CardiffBoise

CWL - BOI

CWLBOI

Cardiff Wales

Fri 7/11

17:25-18:51

2 stops32h 26m

Boise Air Term. Gowen Fld

Mon 10/11

05:35-16:55

2 stops28h 20m

£718

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Best time to book a flight from Cardiff to Boise

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

Related info for your journey

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

  • How long is the flight from Cardiff to Boise?

    Departing from Cardiff to Boise will take you 32h 26m. The distance from Cardiff to Boise is about 4745 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Boise 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 Cardiff to Boise?

    Currently, October is the cheapest month in which you can book a flight from Cardiff to Boise (average of £754). Flying from Cardiff to Boise in August is currently the most expensive (average of £1,152). 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

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 Cardiff to Boise

See prices for flight routes from nearby airports that may be better suited for you.
Manchester to Idaho Falls flights
Manchester to Spokane flights
Bristol to Boise 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 Cardiff to Boise?

Deals for Cardiff to Boise 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 Cardiff to Boise?

Millions of users choose and trust Cheapflights to book the best flight deals from Cardiff to Boise for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Boise from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Cardiff to Boise flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the 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.