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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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SGU — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$218
(Delta)

One-way from

$175
(American Airlines)

Popular in

October

Cheapest in

December

Average price

$368
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. 11% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 7/106:02 amSGU - BOI
1 stop3h 24mDelta
Thu 7/1712:50 pmBOI - SGU
1 stop5h 45mDelta
Deal found 6/10$218
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/255:05 amSGU - BOI
1 stop4h 41mUnited Airlines
Sun 6/295:00 amBOI - SGU
1 stop4h 56mUnited Airlines
Deal found 6/10$407

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 June 12, 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

Thu 7/10

6:02 am-9:26 am

1 stop3h 24m

Boise Air Term. Gowen Fld

Thu 7/17

12:50 pm-6:35 pm

1 stop5h 45m

$218

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Wed 6/25

5:05 am-9:46 am

1 stop4h 41m

Boise Air Term. Gowen Fld

Sun 6/29

5:00 am-9:56 am

1 stop4h 56m

$407

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 8/26

7:30 am-1:20 pm

1 stop5h 50m

$175

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Tue 8/26

3:20 pm-11:50 pm

2 stops8h 30m

$181

Saint GeorgeBoise

SGU - BOI

SGUBOI

Saint George

Thu 7/10

11:30 am-7:11 pm

2 stops7h 41m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 $395). 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 June 12, 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.

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
See what other customers who have flown with Delta, United Airlines and American Airlines from Saint George to Boise have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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 $407. Delta is 41% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Saint George to Boise one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $175. Delta flights start at $181 while deals on United Airlines start at $339 one-way.

  • 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 $395). 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 Saint George?

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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$218Average$360FlexibilityNo cancel feeOn-time69%
DeltaCheapest$218Average$340FlexibilityNo cancel feeOn-timeN/A

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