$169+ Cheap flights from Billings to San Diego (BIL - SAN)
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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SAN
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Billings to San Diego 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.Cheap flight deals from Billings to San Diego
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Cheapest flights from Billings to San DiegoExplore 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 September 10, 2026.
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 September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:44 pm -
1 stop21h 05m
Wed 12/163:44 pm -
1 stop23h 20m
Deal found 9/9![Multiple Airlines logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:44 pm -
1 stop21h 05m
Wed 12/163:44 pm -
1 stop23h 20m
Deal found 9/9![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:02 pm -
1 stop19h 59m
Wed 12/163:44 pm -
1 stop23h 20m
Deal found 9/9![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:44 pm -
1 stop21h 05m
Thu 12/176:22 pm -
1 stop22h 07m
Deal found 9/9![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/139:47 pm -
1 stop14h 14m
Wed 12/163:44 pm -
1 stop23h 20m
Deal found 9/9![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:44 pm -
1 stop21h 05m
Thu 12/176:22 pm -
1 stop22h 07m
Deal found 9/9![Multiple Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:02 pm -
1 stop19h 59m
Thu 12/176:22 pm -
1 stop22h 07m
Deal found 9/9![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/139:47 pm -
1 stop14h 14m
Thu 12/176:22 pm -
1 stop22h 07m
Deal found 9/9![Multiple Airlines logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 12/86:00 am -
1 stop14h 52m
Mon 12/147:05 pm -
1 stop19h 03m
Deal found 9/9![Alaska Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:44 pm -
1 stop21h 05m
Fri 12/186:22 pm -
1 stop20h 24m
Deal found 9/9![Multiple Airlines logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 10/197:41 am -
1 stop17h 18m
Mon 10/268:28 pm -
1 stop13h 57m
Deal found 9/6![Alaska Airlines logo]()
$318
Best flights from Billings to San DiegoDiscover carefully curated flight deals from Billings to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Billings to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Booking.com deal was found by Cheapflights users on 9/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/312:09 pm -
1 stop8h 32m
Sat 2/611:04 am -
1 stop11h 47m
Deal found 9/5![Alaska Airlines logo]()
$313
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 10/197:41 am -
1 stop17h 18m
Mon 10/268:28 pm -
1 stop13h 57m
Deal found 9/6![Alaska Airlines logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 12/53:44 pm -
1 stop9h 22m
Wed 12/91:45 pm -
1 stop9h 23m
Deal found 9/9![Alaska Airlines logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 1/287:00 am -
1 stop15h 44m
Sun 1/315:46 pm -
1 stop19h 08m
Deal found 9/6![Alaska Airlines logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:32 pm -
1 stop5h 55m
Mon 11/97:00 am -
1 stop6h 52m
Deal found 9/10![Alaska Airlines logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/63:32 pm -
1 stop27h 05m
Tue 11/107:00 am -
1 stop6h 52m
Deal found 9/8![Alaska Airlines logo]()
$377
Last-minute flights from Billings to San DiegoDiscover last-minute flight deals from Billings to San Diego. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to San Diego. Data last updated September 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:57 pm -
1 stop5h 30m
Thu 10/87:00 am -
1 stop5h 14m
Deal found 9/9![United Airlines logo]()
$461
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 10/197:41 am -
1 stop17h 18m
Mon 10/268:28 pm -
1 stop13h 57m
Deal found 9/6![Alaska Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Mon 10/195:00 am -
2 stops7h 35m
Mon 10/262:30 pm -
2 stops7h 00m
Deal found 9/6![United Airlines logo]()
$453
This Expedia deal was found by Cheapflights users on 9/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:41 am -
1 stop6h 42m
Sat 10/2411:10 am -
1 stop11h 40m
Deal found 9/7![Alaska Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 10/215:57 pm -
1 stop5h 30m
Sun 10/256:45 am -
1 stop5h 44m
Deal found 9/6![United Airlines logo]()
$445
This Expedia deal was found by Cheapflights users on 9/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:05 pm -
1 stop6h 47m
Sun 11/156:16 am -
1 stop9h 16m
Deal found 9/5![Alaska Airlines logo]()
$370
One-way flights from Billings to San DiegoSearch for one-way flight options from Billings to San Diego. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Billings to San Diego. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:57 am -
1 stop25h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$169
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 11/135:12 pm -
2 stops19h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Alaska Airlines logo]()
$203
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 12/56:21 pm -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$206
This Delta deal was found by Cheapflights users on 9/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:33 pm -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$221
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 9/235:00 am -
2 stops7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$226
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Tue 12/15:50 pm -
1 stop5h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$240
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:20 pm -
1 stop8h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Alaska Airlines logo]()
$245
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 12/54:04 pm -
2 stops9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$256
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 am -
2 stops9h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$260
This Priceline deal was found by Cheapflights users on 9/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:42 pm -
1 stop5h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Alaska Airlines logo]()
$261
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $272 (Kiwi.com) |
One-way from | $199 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $460 |
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 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Billings to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Mon 11/30
10:57 am-11:01 am
1 stop25h 04m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$169
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Fri 11/13
5:12 pm-11:32 am
2 stops19h 20m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$203
Quickest round-trip
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Fri 11/13
4:00 pm-8:36 pm
1 stop5h 36m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$206
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Sat 12/5
1:23 pm-8:35 pm
1 stop8h 12m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$206
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Thu 9/24
5:00 am-11:35 am
2 stops7h 35m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$226
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Tue 12/1
5:50 pm-10:28 pm
1 stop5h 38m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$240
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Sat 9/26
7:00 am-3:54 pm
2 stops9h 54m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$260
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Sat 12/5
4:04 pm-12:29 am
2 stops9h 25m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$266
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Wed 2/3
12:09 pm-7:41 pm
1 stop8h 32m
San Diego
Sat 2/6
11:04 am-11:51 pm
1 stop11h 47m
$313
BillingsSan Diego
BIL Billings Logan Intl - SAN San Diego
BILSAN
Billings Logan Intl
Mon 10/19
7:41 am-11:59 pm
1 stop17h 18m
San Diego
Mon 10/26
8:28 pm-11:25 am
1 stop13h 57m
$318
Showing 1-10 of 14 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
BIL-SAN
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, January is the cheapest month in which you can book a flight from Billings to San Diego (average of $310). Flying from Billings to San Diego in June is currently the most expensive (average of $567). 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 Diego?
Airfare is below average for this route at the moment.
Billings to San Diego flights typically cost between $457 and $463 in December.The cheapest round-trip price found within the last 5 days was $272 on Multiple Airlines (Dec 11-Dec 16).
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 September 10, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited 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.
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
Coronado
Poway
San Ysidro
La Mesa
Santee
Julian
Lemon Grove
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Billings and San Diego flights
Browse other Billings and San Diego flight options. Last updated on September 10, 2026.
Other flights from Billings
Browse through other flights departing from Billings. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Popular flight searches
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Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Top 3 airlines flying from Billings to San Diego
Discover the top 3 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$136 | Average$348 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$254 | Average$450 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$410 | FlexibilityNo cancel fee | On-time69% |