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$148+ Cheap flights from Billings to San Diego (BIL - SAN)

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SAN
feb. 25 — mar. 41
mié. 2/25
mié. 3/4
1 adult, Economy
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Cheap flight deals from Billings to San Diego

Cheapest flights from Billings to San Diego
Explore the most affordable flight options available from Billings to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 26, 2026.

This Trip.com deal was found by Cheapflights users on 1/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/103:32 pm
BIL
-
SAN
1 stop5h 40m
Multiple Airlines
mar. 3/176:15 am
SAN
-
BIL
1 stop7h 37m
Multiple Airlines
Deal found 1/24$202
This American Airlines deal was found by Cheapflights users on 1/24. 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.
sáb. 2/141:48 pm
BIL
-
SAN
1 stop7h 49m
American Airlines
mié. 2/184:45 pm
SAN
-
BIL
1 stop5h 50m
American Airlines
Deal found 1/24$217
This United Airlines deal was found by Cheapflights users on 1/24. 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.
sáb. 2/142:35 pm
BIL
-
SAN
2 stops10h 05m
United Airlines
mié. 2/186:30 am
SAN
-
BIL
1 stop5h 53m
United Airlines
Deal found 1/24$222
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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.
mar. 3/102:04 pm
BIL
-
SAN
1 stop8h 45m
Alaska Airlines
mar. 3/176:15 am
SAN
-
BIL
1 stop7h 37m
Alaska Airlines
Deal found 1/25$227
This Delta deal was found by Cheapflights users on 1/25. 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.
mar. 3/1011:34 am
BIL
-
SAN
2 stops7h 45m
Delta
mar. 3/175:01 pm
SAN
-
BIL
1 stop4h 28m
Delta
Deal found 1/25$242
This United Airlines deal was found by Cheapflights users on 1/26. 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.
lun. 3/92:35 pm
BIL
-
SAN
1 stop7h 28m
United Airlines
mar. 3/106:30 am
SAN
-
BIL
1 stop5h 53m
United Airlines
Deal found 1/26$256
This Delta deal was found by Cheapflights users on 1/25. 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.
dom. 4/126:25 am
BIL
-
SAN
1 stop8h 12m
Delta
sáb. 4/189:47 am
SAN
-
BIL
1 stop6h 50m
Delta
Deal found 1/25$266
This Orbitz deal was found by Cheapflights users on 1/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/2212:49 pm
BIL
-
SAN
1 stop5h 17m
Alaska Airlines
lun. 4/279:40 pm
SAN
-
BIL
2 stops14h 46m
Alaska Airlines
Deal found 1/26$275
This Delta deal was found by Cheapflights users on 1/26. 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.
lun. 3/911:34 am
BIL
-
SAN
2 stops7h 45m
Delta
mar. 3/106:20 am
SAN
-
BIL
2 stops10h 21m
Delta
Deal found 1/26$277

Find flight deals from Billings to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to San Diego (SAN). 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 enero 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$202
(Trip.com)

One-way from

$148
(Delta)

Popular in

June

Cheapest in

January

Average price

$310
Provider with most accurate pricing for Billings Logan Intl-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-San Diego flights.
Search Deals
From Billings Logan Intl to San Diego
Search Deals
One-way flight from Billings Logan Intl to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to San Diego 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 enero 26, 2026.
Use the filters below to find and compare flights from Billings to San Diego that are best for you.

Fly from

Billings

Fly to

San Diego

Route

Depart

Return

Price

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

mar. 3/10

2:04 pm-9:49 pm

1 stop8h 45m

San Diego

mar. 3/17

6:15 am-2:52 pm

1 stop7h 37m

$227

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

dom. 4/12

6:25 am-1:37 pm

1 stop8h 12m

San Diego

sáb. 4/18

9:47 am-5:37 pm

1 stop6h 50m

$266

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

mié. 4/22

12:49 pm-5:06 pm

1 stop5h 17m

San Diego

lun. 4/27

6:15 am-10:59 pm

1 stop15h 44m

$266

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

lun. 3/9

5:15 am-8:45 am

1 stop4h 30m

San Diego

mar. 3/10

6:20 am-5:41 pm

2 stops10h 21m

$271

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

mar. 2/24

7:00 am-1:20 pm

1 stop7h 20m

San Diego

sáb. 2/28

4:45 pm-11:38 pm

1 stop5h 53m

$278

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

dom. 3/1

7:00 am-1:20 pm

1 stop7h 20m

San Diego

lun. 3/2

9:08 pm-1:24 pm

1 stop15h 16m

$336

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

mié. 2/11

4:13 pm-10:37 pm

1 stop7h 24m

San Diego

mar. 2/17

6:30 am-1:23 pm

1 stop5h 53m

$338

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

mié. 4/22

12:49 pm-5:06 pm

1 stop5h 17m

San Diego

dom. 4/26

7:35 pm-10:59 pm

1 stop26h 24m

$340

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

jue. 2/12

2:35 pm-11:40 pm

2 stops10h 05m

San Diego

mar. 2/17

6:30 am-1:23 pm

1 stop5h 53m

$343

BillingsSan Diego

BIL - SAN

BILSAN

Billings Logan Intl

vie. 2/27

5:53 pm-10:35 pm

1 stop5h 42m

$148

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 16 results
1
2

Compare providers for flights from Billings to San Diego

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

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

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

Currently, October is the cheapest month in which you can book a flight from Billings to San Diego (average of $142). Flying from Billings to San Diego in May is currently the most expensive (average of $276). 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 Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated enero 26, 2026.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Billings to San Diego have to say. 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
11,792 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,792 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,113 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,200 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,189 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

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

    For as low as $217, American Airlines can have you in San Diego from Billings in 7h 49m. Billings and San Diego are separated by a distance of 1013 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Billings to San Diego round-trip from $244. Other airlines that can offer you cheap pricing are American Airlines, from $248, and Alaska Airlines, from $262. These flights start at 36% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Billings to San Diego (average of $142). Flying from Billings to San Diego in May is currently the most expensive (average of $276). 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 Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Top 4 airlines flying from Billings to San Diego

Discover the top 4 airlines that operate flights from Billings to San Diego. 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 enero 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$244Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$379FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$262Average$370FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$274Average$408FlexibilityNo cancel feeOn-time69%

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