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$209+ 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
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$218
(Delta)

One-way from

$209
(Delta)

Popular in

October

Cheapest in

December

Average price

$358
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. 18% potential increase in price ($78 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 September 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/25:18 amSGU - BOI
1 stop4h 24mUnited Airlines
Mon 10/65:00 amBOI - SGU
1 stop4h 56mUnited Airlines
Deal found 9/17$256
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 9/306:00 amSGU - BOI
1 stop4h 34mDelta
Sat 10/45:43 pmBOI - SGU
1 stop4h 14mDelta
Deal found 9/14$348
This Delta deal was found by Cheapflights users on 9/15. 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 10/11:10 pmSGU - BOI
1 stop3h 31mDelta
Sun 10/511:27 amBOI - SGU
1 stop5h 25mDelta
Deal found 9/15$378
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/1012:15 pmSGU - BOI
1 stop11h 17mAmerican Airlines
Fri 10/172:07 pmBOI - SGU
1 stop10h 06mAmerican Airlines
Deal found 9/16$404
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/15:18 amSGU - BOI
2 stops18h 26mUnited Airlines
Sun 10/55:00 amBOI - SGU
1 stop4h 56mUnited Airlines
Deal found 9/15$496
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/305:30 pmSGU - BOI
2 stops18h 09mUnited Airlines
Sat 10/45:39 pmBOI - SGU
1 stop5h 17mUnited Airlines
Deal found 9/14$513
This Delta deal was found by Cheapflights users on 9/16. 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.
Mon 12/2211:22 amSGU - BOI
1 stop6h 17mDelta
Sat 12/275:50 amBOI - SGU
1 stop4h 57mDelta
Deal found 9/16$519
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/1011:25 amSGU - BOI
2 stops29h 33mUnited Airlines
Fri 10/172:12 pmBOI - SGU
1 stop25h 54mUnited Airlines
Deal found 9/16$710
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 12/2212:25 pmSGU - BOI
2 stops30h 48mUnited Airlines
Sat 12/276:15 amBOI - SGU
1 stop28h 05mUnited Airlines
Deal found 9/16$768

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 September 17, 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 2/21

6:15 am-10:24 am

1 stop4h 09m

Boise Air Term. Gowen Fld

Sat 2/28

1:10 pm-6:35 pm

1 stop5h 25m

$218

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 3/3

6:15 am-10:24 am

1 stop4h 09m

Boise Air Term. Gowen Fld

Sat 3/7

5:45 pm-10:05 pm

1 stop4h 20m

$218

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Thu 10/2

5:18 am-9:42 am

1 stop4h 24m

Boise Air Term. Gowen Fld

Mon 10/6

5:00 am-9:56 am

1 stop4h 56m

$256

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 9/30

6:00 am-10:34 am

1 stop4h 34m

Boise Air Term. Gowen Fld

Sat 10/4

5:43 pm-9:57 pm

1 stop4h 14m

$348

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Wed 10/1

1:10 pm-4:41 pm

1 stop3h 31m

Boise Air Term. Gowen Fld

Sun 10/5

11:27 am-4:52 pm

1 stop5h 25m

$378

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Sat 2/21

11:30 am-11:37 pm

2 stops12h 07m

Boise Air Term. Gowen Fld

Sat 2/28

5:22 pm-10:17 pm

1 stop4h 55m

$407

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Wed 10/1

5:18 am-11:44 pm

2 stops18h 26m

Boise Air Term. Gowen Fld

Sun 10/5

5:00 am-9:56 am

1 stop4h 56m

$496

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 10/7

6:05 am-10:17 am

1 stop4h 12m

$209

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 10/7

11:25 am-11:44 pm

2 stops12h 19m

$266

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 $398). 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 September 17, 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 September 17, 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
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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.

  • How long is the flight from Saint George to Boise?

    Departing from Saint George to Boise will take you 4h 09m. There are 468 mi between Saint George and Boise. This flight may include one or multiple stops.

  • 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 39% 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 $398). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$349FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$223Average$360FlexibilityNo cancel feeOn-time69%

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