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Cheap flights from Southampton to Boise from £677

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — BOI
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Southampton to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) 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 18 September 2025.

Round-trip from

£677

Popular in

July

Cheapest in

February

Average price

£599
Delta
  • Delta
  • 8/10-16/10
  • 4 total stops
  • 37h 56m total
  • Southampton to Boise
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£81 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Southampton to Boise

Cheapest flights from Southampton to Boise
Explore the most affordable flight options available from Southampton to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Sun 2/1118:05SOU - BOI
2 stops29h 01mDelta
Sun 9/1113:49BOI - SOU
2 stops35h 21mDelta
Deal found 15/9£677
Wed 29/1017:30SOU - BOI
2 stops29h 43mDelta
Sun 9/1123:35BOI - SOU
2 stops25h 35mDelta
Deal found 15/9£707
Wed 29/1017:30SOU - BOI
2 stops29h 43mDelta
Fri 7/1113:00BOI - SOU
2 stops21h 00mDelta
Deal found 15/9£737
Sun 5/1018:25SOU - BOI
2 stops28h 41mDelta
Fri 17/1014:00BOI - SOU
2 stops35h 45mDelta
Deal found 15/9£741
Tue 28/1008:40SOU - BOI
2 stops33h 49mDelta
Sun 9/1123:35BOI - SOU
2 stops25h 35mDelta
Deal found 15/9£755
Sun 12/1018:25SOU - BOI
2 stops36h 29mDelta
Mon 3/1116:46BOI - SOU
2 stops56h 34mDelta
Deal found 16/9£768
Sat 4/1009:20SOU - BOI
2 stops18h 00mDelta
Fri 17/1014:00BOI - SOU
2 stops35h 45mDelta
Deal found 15/9£771
Tue 28/1017:30SOU - BOI
2 stops29h 43mDelta
Fri 7/1113:00BOI - SOU
2 stops21h 00mDelta
Deal found 15/9£785
Tue 14/1009:20SOU - BOI
2 stops58h 09mDelta
Mon 3/1116:46BOI - SOU
2 stops56h 34mDelta
Deal found 16/9£792
Thu 9/1017:35SOU - BOI
2 stops37h 21mDelta
Mon 13/1005:42BOI - SOU
2 stops20h 03mDelta
Deal found 15/9£798
Wed 15/1009:20SOU - BOI
2 stops21h 39mDelta
Mon 3/1117:55BOI - SOU
2 stops55h 25mDelta
Deal found 16/9£818
Thu 9/1017:35SOU - BOI
2 stops29h 31mDelta
Sat 11/1016:46BOI - SOU
2 stops56h 59mDelta
Deal found 15/9£828

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton 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 18 September 2025.
Use the filters below to find and compare flights from Southampton to Boise that are best for you.

Fly from

Southampton

Fly to

Boise

Route

Depart

Return

Price

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Sun 5/10

18:25-20:16

2 stops32h 51m

Boise Air Term. Gowen Fld

Mon 13/10

05:42-08:45

2 stops20h 03m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Sun 28/9

18:25-20:20

2 stops32h 55m

Boise Air Term. Gowen Fld

Sun 5/10

23:35-17:00

2 stops34h 25m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Tue 30/9

17:35-18:16

2 stops31h 41m

Boise Air Term. Gowen Fld

Mon 6/10

07:45-17:00

2 stops26h 15m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Wed 8/10

09:20-20:16

2 stops17h 56m

Boise Air Term. Gowen Fld

Sun 12/10

19:45-08:45

2 stops54h 00m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Tue 30/9

17:35-10:10

2 stops47h 35m

Boise Air Term. Gowen Fld

Wed 8/10

05:42-08:45

2 stops20h 03m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Mon 6/10

17:35-16:06

2 stops29h 31m

Boise Air Term. Gowen Fld

Sun 12/10

19:45-08:45

2 stops54h 00m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Sun 5/10

18:25-20:16

2 stops32h 51m

Boise Air Term. Gowen Fld

Thu 16/10

14:00-17:00

2 stops20h 00m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Wed 8/10

09:20-00:08

2 stops21h 48m

Boise Air Term. Gowen Fld

Mon 13/10

05:42-08:45

2 stops20h 03m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Mon 6/10

17:35-23:54

2 stops37h 19m

Boise Air Term. Gowen Fld

Wed 15/10

05:42-08:45

2 stops20h 03m

£677

SouthamptonBoise

SOU - BOI

SOUBOI

Southampton Eastleigh

Mon 3/11

08:40-12:29

2 stops34h 49m

Boise Air Term. Gowen Fld

Wed 12/11

09:00-17:25

2 stops25h 25m

£677

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 12 results
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Best time to book a flight from Southampton to Boise

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

What is the cheapest month to book a flight from Southampton to Boise?

Currently, October is the cheapest month in which you can book a flight from Southampton to Boise (average of £754). Flying from Southampton 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.

Related info for your journey

Find useful and relevant information for your journey from Southampton 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 Southampton to Boise?

    Departing from Southampton to Boise will take you 32h 51m. Airlines will cover a distance of 4828 mi.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Southampton to Boise (average of £754). Flying from Southampton 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

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Deals for Southampton 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 Southampton to Boise?

Cheapflights simply makes it quick and affordable to book flights from Southampton to Boise by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Southampton to Boise flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Boise from Southampton today and book when prices fit your budget.

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