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$175+ Cheap flights from Saint George to Boise (SGU - BOI)

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SGU — BOI
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Saint George to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Saint George (SGU) 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 August 14, 2025.

Round-trip from

$218
(Delta)

One-way from

$175
(American Airlines)

Popular in

October

Cheapest in

December

Average price

$303
From Saint George to Boise Air Term. Gowen Fld
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One-way flight from Saint George to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 15% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Saint George to Boise

Cheapest flights from Saint George to Boise
Explore the most affordable flight options available from Saint George to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amSGU - BOI
1 stop4h 48mDelta
Sun 9/216:00 amBOI - SGU
1 stop4h 45mDelta
Deal found 8/14$218
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:02 amSGU - BOI
1 stop3h 43mDelta
Sat 8/3012:45 pmBOI - SGU
1 stop5h 50mDelta
Deal found 8/12$228
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/63:20 pmSGU - BOI
2 stops7h 12mDelta
Mon 9/85:47 amBOI - SGU
2 stops8h 53mDelta
Deal found 8/12$264
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/167:30 amSGU - BOI
1 stop5h 50mAmerican Airlines
Sun 8/176:35 amBOI - SGU
1 stop4h 23mAmerican Airlines
Deal found 8/14$278
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/275:18 amSGU - BOI
1 stop4h 24mUnited Airlines
Sun 8/315:00 amBOI - SGU
1 stop4h 56mUnited Airlines
Deal found 8/12$288
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/23:20 pmSGU - BOI
2 stops7h 12mDelta
Sat 9/610:45 amBOI - SGU
1 stop3h 55mDelta
Deal found 8/12$329
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/295:18 amSGU - BOI
1 stop4h 24mUnited Airlines
Tue 9/25:00 amBOI - SGU
1 stop4h 56mUnited Airlines
Deal found 8/13$349

Cheapflights Fare Finder

 
Customize your flight search to find flights from Saint George 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 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Saint George to Boise that are best for you.

Fly from

Saint George

Fly to

Boise

Route

Depart

Return

Price

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Sat 9/13

6:00 am-10:48 am

1 stop4h 48m

Boise Air Term. Gowen Fld

Sun 9/21

11:27 am-2:32 pm

1 stop3h 05m

$218

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Sat 9/6

11:25 am-4:57 pm

1 stop5h 32m

Boise Air Term. Gowen Fld

Mon 9/8

6:00 pm-9:50 pm

1 stop3h 50m

$218

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Wed 8/27

6:02 am-9:45 am

1 stop3h 43m

Boise Air Term. Gowen Fld

Sat 8/30

12:45 pm-6:35 pm

1 stop5h 50m

$228

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 10/7

12:15 pm-7:37 pm

1 stop7h 22m

$175

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 10/7

11:25 am-6:51 pm

2 stops7h 26m

$210

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Sat 10/11

3:20 pm-7:07 pm

1 stop3h 47m

$222

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Sun 10/12

6:05 am-12:01 pm

1 stop5h 56m

$222

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Best time to book a flight from Saint George to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Saint George with our price prediction graph.
Estimated round-trip 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 Saint George to Boise

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

Currently, October is the cheapest month in which you can book a flight from Saint George to Boise (average of $314). Flying from Saint George to Boise in June is currently the most expensive (average of $399). 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 time of day to fly from SGU to BOI?

Find hourly flight availability from Saint George to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

One of the essential ways to save on airfare from Saint George to Boise is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 25% on airfare.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Saint George to Boise. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What are the cheapest airlines flying from Saint George to Boise round-trip?

    Our cheapest airline available from Saint George to Boise is Delta. Our recent data shows that you can find tickets from as low as $218 on this airline. An additional option worth looking into is United Airlines, starting at $223. Delta is 37% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Yes. In addition to deals on Saint George to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Saint George to Boise?

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

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

    Yes. Cheapflights offers flight deals from Saint George 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 Saint George to Boise?

    Currently, October is the cheapest month in which you can book a flight from Saint George to Boise (average of $314). Flying from Saint George to Boise in June is currently the most expensive (average of $399). 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

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Ontario
Meridian
Nampa
Caldwell
McCall

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Top 2 airlines flying from Saint George to Boise

Discover the top 2 airlines that operate flights from Saint George to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$326FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$223Average$433FlexibilityNo cancel feeOn-time69%

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