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$186+ Cheap flights from Billings to San Antonio (BIL - SAT)

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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SAT
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
1 adult, Economy
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Cheap flight deals from Billings to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to San Antonio (SAT). 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 January 7, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$363
(Alaska Airlines)

One-way from

$186
(Delta)

Popular in

February

Cheapest in

September

Average price

$576
Provider with most accurate pricing for Billings Logan Intl-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Billings Logan Intl-San Antonio flights.
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From Billings Logan Intl to San Antonio
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One-way flight from Billings Logan Intl to San Antonio
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Highest demand for flights based on searches. 21% potential increase in price ($145 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Billings to San Antonio

Cheapest flights from Billings to San Antonio
Explore the most affordable flight options available from Billings to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/232:04 pmBIL - SAT
1 stop26h 06mAlaska Airlines
Tue 3/36:06 pmSAT - BIL
1 stop21h 46mAlaska Airlines
Deal found 1/6$363
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/292:45 pmBIL - SAT
1 stop4h 59mUnited Airlines
Sun 2/18:30 amSAT - BIL
1 stop5h 54mUnited Airlines
Deal found 1/6$371
This Delta deal was found by Cheapflights users on 1/7. 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 1/295:15 amBIL - SAT
1 stop7h 33mDelta
Wed 2/47:00 amSAT - BIL
2 stops11h 30mDelta
Deal found 1/7$376
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Sun 2/227:00 amBIL - SAT
1 stop5h 59mAmerican Airlines
Tue 3/33:15 pmSAT - BIL
1 stop7h 57mAmerican Airlines
Deal found 1/6$384
This United Airlines deal was found by Cheapflights users on 1/5. 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 6/187:00 amBIL - SAT
1 stop5h 05mUnited Airlines
Mon 6/224:45 pmSAT - BIL
1 stop5h 06mUnited Airlines
Deal found 1/5$408
This United Airlines deal was found by Cheapflights users on 1/6. 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 3/122:36 pmBIL - SAT
1 stop7h 56mUnited Airlines
Thu 3/194:40 pmSAT - BIL
1 stop5h 27mUnited Airlines
Deal found 1/6$409
This United Airlines deal was found by Cheapflights users on 1/7. 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 1/222:45 pmBIL - SAT
1 stop4h 59mUnited Airlines
Mon 1/264:43 pmSAT - BIL
1 stop5h 40mUnited Airlines
Deal found 1/7$431

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to San Antonio 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 January 7, 2026.
Use the filters below to find and compare flights from Billings to San Antonio that are best for you.

Fly from

Billings

Fly to

San Antonio

Route

Depart

Return

Price

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Mon 2/23

2:04 pm-5:10 pm

1 stop26h 06m

San Antonio

Tue 3/3

6:06 pm-2:52 pm

1 stop21h 46m

$363

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Thu 1/29

2:45 pm-8:44 pm

1 stop4h 59m

San Antonio

Sun 2/1

8:30 am-1:24 pm

1 stop5h 54m

$371

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Thu 6/18

5:45 am-1:31 pm

1 stop6h 46m

San Antonio

Mon 6/22

6:05 pm-10:27 pm

1 stop5h 22m

$371

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Wed 2/4

7:10 am-1:13 pm

1 stop5h 03m

San Antonio

Wed 2/11

8:30 am-1:24 pm

1 stop5h 54m

$371

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Thu 1/29

6:10 pm-12:41 am

1 stop5h 31m

San Antonio

Wed 2/4

2:42 pm-7:24 pm

1 stop5h 42m

$371

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Fri 6/19

5:45 am-1:31 pm

1 stop6h 46m

San Antonio

Tue 6/23

12:50 pm-10:37 pm

2 stops10h 47m

$376

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Wed 6/17

5:45 am-1:31 pm

1 stop6h 46m

$186

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Wed 6/17

7:00 am-5:33 pm

2 stops9h 33m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Compare providers for flights from Billings to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billings to San Antonio in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Billings-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Billings-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Billings-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-San Antonio flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billings-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Billings to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Billings 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 Billings to San Antonio

What is the cheapest month to book a flight from Billings to San Antonio?

Currently, June is the cheapest month in which you can book a flight from Billings to San Antonio (average of $214). Flying from Billings to San Antonio in March is currently the most expensive (average of $394). 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.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated January 7, 2026.
Get a feel of what it's like to fly with United Airlines from Billings to San Antonio by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,138 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,138 reviews
United Airlines
7.4
Good
9,138 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

Find useful and relevant information for your journey from Billings to San Antonio. 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 Billings to San Antonio?

    A quick flight from Billings to San Antonio can take about 4h 59m. Alaska Airlines provides one of the quickest options available for as low as $371. There are 1249 mi between Billings and San Antonio. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Billings to San Antonio round-trip?

    Flying on United Airlines is currently your cheapest option to San Antonio, with prices starting at $354. You may be able to fly from Billings to San Antonio for 34% less than the average price by searching for this airline.

  • Can I find deals for flights from Billings to San Antonio that include hotel bookings?

    Yes. In addition to deals on Billings to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to San Antonio?

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

  • Can I find deals for business class flights from Billings to San Antonio?

    Yes. Cheapflights offers flight deals from Billings to San Antonio 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 Billings to San Antonio?

    Currently, June is the cheapest month in which you can book a flight from Billings to San Antonio (average of $214). Flying from Billings to San Antonio in March is currently the most expensive (average of $394). 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 San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for Billings to San Antonio

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Top airline flying from Billings to San Antonio

Discover the top airline that operate flights from Billings to San Antonio. 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 January 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$354Average$491FlexibilityNo cancel feeOn-time69%

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