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$175+ Cheap flights from San Diego to Billings (SAN - BIL)

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BIL
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
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Cheap flight deals from San Diego to Billings

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Billings (BIL). 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 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(Kiwi.com)

One-way from

$175
(Alaska Airlines)

Popular in

February

Cheapest in

April

Average price

$321
Provider with most accurate pricing for San Diego-Billings Logan Intl flight deals.
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Provider most trusted by Cheapflights users for San Diego-Billings Logan Intl flights.
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From San Diego to Billings Logan Intl
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One-way flight from San Diego to Billings Logan Intl
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Highest demand for flights based on searches. 28% potential increase in price ($164 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Diego to Billings

Cheapest flights from San Diego to Billings
Explore the most affordable flight options available from San Diego to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Thu 12/114:52 pmSAN - BIL
1 stop15h 20mMultiple Airlines
Sun 12/1410:24 pmBIL - SAN
1 stop14h 19mMultiple Airlines
Deal found 10/8$179
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Thu 10/233:59 pmSAN - BIL
1 stop16h 25mMultiple Airlines
Mon 10/2710:02 amBIL - SAN
1 stop14h 02mMultiple Airlines
Deal found 10/8$194
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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.
Wed 11/197:00 amSAN - BIL
1 stop5h 20mAlaska Airlines
Sat 12/62:02 pmBIL - SAN
1 stop7h 55mAlaska Airlines
Deal found 10/9$242
This Delta deal was found by Cheapflights users on 10/8. 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 11/85:40 pmSAN - BIL
1 stop4h 25mDelta
Tue 11/116:24 pmBIL - SAN
1 stop6h 31mDelta
Deal found 10/8$255
This Delta deal was found by Cheapflights users on 10/8. 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 11/195:15 pmSAN - BIL
1 stop5h 55mDelta
Sun 11/236:25 amBIL - SAN
1 stop7h 41mDelta
Deal found 10/8$277

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Billings 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 10, 2025.
Use the filters below to find and compare flights from San Diego to Billings that are best for you.

Fly from

San Diego

Fly to

Billings

Route

Depart

Return

Price

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Thu 12/11

4:52 pm-9:12 am

1 stop15h 20m

Billings Logan Intl

Sun 12/14

10:24 pm-11:43 am

1 stop14h 19m

$179

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Thu 10/23

3:59 pm-9:24 am

1 stop16h 25m

Billings Logan Intl

Mon 10/27

10:02 am-9:24 pm

2 stops36h 22m

$225

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Wed 11/19

7:00 am-1:20 pm

1 stop5h 20m

Billings Logan Intl

Sat 12/6

2:02 pm-8:57 pm

1 stop7h 55m

$242

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Sat 11/8

6:59 am-6:39 pm

2 stops10h 40m

Billings Logan Intl

Tue 11/11

2:00 pm-6:19 am

2 stops17h 19m

$253

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Sat 11/8

5:40 pm-11:05 pm

1 stop4h 25m

Billings Logan Intl

Tue 11/11

6:24 pm-11:55 pm

1 stop6h 31m

$255

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Wed 11/19

5:15 pm-12:10 am

1 stop5h 55m

Billings Logan Intl

Sun 11/23

6:25 am-1:06 pm

1 stop7h 41m

$277

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Mon 10/27

5:25 pm-10:25 pm

1 stop4h 00m

$186

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Sun 11/9

9:03 pm-1:20 pm

2 stops15h 17m

$195

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Sun 11/30

3:49 pm-9:05 am

1 stop16h 16m

$210

San DiegoBillings

SAN - BIL

SANBIL

San Diego

Mon 10/27

7:48 pm-3:00 pm

2 stops18h 12m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/8

Showing 1-10 of 14 results
1
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Compare providers for flights from San Diego to Billings

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 San Diego to Billings in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 San Diego-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Billings flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Billings flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Diego-Billings 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 San Diego to Billings

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

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

Currently, May is the cheapest month in which you can book a flight from San Diego to Billings (average of $122). Flying from San Diego to Billings in September is currently the most expensive (average of $273). 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 SAN to BIL?

Find hourly flight availability from San Diego to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 10, 2025.

It’s optimal to fly from San Diego to Billings in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Billings

Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated October 10, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from San Diego to Billings. 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.
Alaska Airlines
8.0
Very good
11,050 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,050 reviews
Alaska Airlines
8.0
Very good
11,050 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,969 reviews
Alaska Airlines
8.0
Very good
11,050 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,968 reviews
Alaska Airlines
8.0
Very good
11,050 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

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

    For as low as $242, Alaska Airlines can have you in Billings from San Diego in 5h 20m. The distance from San Diego to Billings is about 1013 mi.

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

    Currently priced at $219, Alaska Airlines will fly you from San Diego to Billings and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $236 and $252, respectively. Alaska Airlines is currently priced 48% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from San Diego to Billings (average of $122). Flying from San Diego to Billings in September is currently the most expensive (average of $273). 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.

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Top 3 airlines flying from San Diego to Billings

Discover the top 3 airlines that operate flights from San Diego to Billings. 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 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$219Average$348FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$298FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$252Average$411FlexibilityNo cancel feeOn-time69%

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