HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$266+ Cheap flights from Billings to San Antonio (BIL - SAT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SAT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Billings to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1910:02 amBIL - SAT
1 stop27h 05mMultiple Airlines
Thu 12/2510:18 amSAT - BIL
1 stop22h 38mMultiple Airlines
Deal found 10/29$266
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/263:32 pmBIL - SAT
1 stop20h 51mMultiple Airlines
Mon 12/17:50 pmSAT - BIL
2 stops40h 27mMultiple Airlines
Deal found 10/30$328
This Delta deal was found by Cheapflights users on 10/29. 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 11/196:24 pmBIL - SAT
1 stop5h 11mDelta
Mon 11/246:13 pmSAT - BIL
1 stop6h 11mDelta
Deal found 10/29$371
This Delta deal was found by Cheapflights users on 10/29. 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 11/206:25 amBIL - SAT
2 stops9h 52mDelta
Wed 11/265:06 pmSAT - BIL
2 stops8h 04mDelta
Deal found 10/29$381
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 11/186:00 amBIL - SAT
1 stop10h 55mAlaska Airlines
Fri 11/216:30 amSAT - BIL
1 stop18h 58mAlaska Airlines
Deal found 10/28$383
This Delta deal was found by Cheapflights users on 10/28. 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 11/185:18 amBIL - SAT
2 stops8h 28mDelta
Fri 11/216:13 pmSAT - BIL
1 stop6h 12mDelta
Deal found 10/28$389
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 11/225:00 amBIL - SAT
1 stop6h 56mUnited Airlines
Fri 11/284:30 pmSAT - BIL
1 stop7h 20mUnited Airlines
Deal found 10/30$417

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$266
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$582
Provider with most accurate pricing for Billings Logan Intl-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-San Antonio flights.
Search Deals
From Billings Logan Intl to San Antonio
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 30, 2025.
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

Fri 12/19

10:02 am-12:17 am

2 stops37h 15m

San Antonio

Thu 12/25

10:18 am-7:56 am

1 stop22h 38m

$281

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Wed 2/25

5:40 am-1:34 pm

1 stop6h 54m

San Antonio

Sun 3/1

6:05 pm-10:37 pm

1 stop5h 32m

$371

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Tue 4/14

5:45 am-1:31 pm

1 stop6h 46m

San Antonio

Wed 4/15

6:05 pm-10:27 pm

1 stop5h 22m

$371

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Wed 11/19

5:18 am-1:49 pm

1 stop7h 31m

San Antonio

Mon 11/24

6:13 pm-11:24 pm

1 stop6h 11m

$371

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Thu 11/20

5:18 am-2:46 pm

2 stops8h 28m

San Antonio

Wed 11/26

6:13 pm-11:24 pm

1 stop6h 11m

$376

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Sat 11/8

2:00 pm-8:10 pm

1 stop5h 10m

$331

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Sat 11/8

6:25 am-4:10 pm

2 stops8h 45m

$336

BillingsSan Antonio

BIL - SAT

BILSAT

Billings Logan Intl

Sat 11/8

7:19 pm-10:55 am

3 stops38h 36m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 October.
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.

How much does it cost to fly round-trip from Billings to San Antonio?

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 October 30, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American 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.
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 6h 54m. Delta provides one of the quickest options available for as low as $371. There are 1249 mi between Billings and San Antonio.

  • What are the cheapest airlines flying from Billings to San Antonio round-trip?

    Flying on United Airlines is currently your cheapest option to San Antonio, with prices starting at $350. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $350 and $363, respectively. You may be able to fly from Billings to San Antonio for 31% less than the average price by searching for these airlines.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Billings to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Dallas/Fort Worth flights
Kalispell to Dallas/Fort Worth flights
Missoula to Dallas/Fort Worth flights
Bozeman to Austin flights
Missoula to Hobby flights
Bozeman to San Antonio flights
Billings to Dallas/Fort Worth flights
Bozeman to Hobby flights
Missoula to George Bush Intcntl flights
Bozeman to Love Field flights
Great Falls to Dallas/Fort Worth flights
Bozeman to George Bush Intcntl flights
Billings to Midland flights
Missoula to Austin flights
Billings to Hobby flights
Great Falls to San Antonio flights
Great Falls to Hobby flights
Helena to Hobby flights
Great Falls to George Bush Intcntl flights
Billings to Austin flights
Kalispell to Austin flights
Billings to George Bush Intcntl flights
Helena to George Bush Intcntl flights
Kalispell to Hobby flights
Kalispell to George Bush Intcntl flights
Helena to San Antonio flights
Missoula to San Antonio flights
Helena to Dallas/Fort Worth flights
Billings to El Paso flights
Butte to Hobby flights
Helena to Austin flights
Billings to Corpus Christi flights
Butte to George Bush Intcntl flights
Kalispell to San Antonio flights
Butte to Dallas/Fort Worth flights
Helena to Love Field flights
Billings to Love Field flights
Kalispell to El Paso flights
Billings to Amarillo flights
Great Falls to Austin flights
Great Falls to El Paso flights
Helena to El Paso flights
Helena to Corpus Christi flights
Kalispell to Love Field flights
Missoula to Love Field flights
Great Falls to Love Field flights
Kalispell to Midland flights
Bozeman to Waco flights

Top 3 airlines flying from Billings to San Antonio

Discover the top 3 airlines 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$350Average$484FlexibilityNo cancel feeOn-time69%
DeltaCheapest$350Average$435FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$363Average$538FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.