$191+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SAN
Aug 25 — Sep 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 July 26, 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 July 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:58 pm
BIL
- SAN
2 stops24h 17m
Multiple Airlines
Thu 8/278:59 pm
SAN
- BIL
1 stop17h 11m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/75:40 pm
BIL
- SAN
1 stop25h 38m
Multiple Airlines
Tue 10/131:35 pm
SAN
- BIL
1 stop26h 15m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/510:20 pm
BIL
- SAN
2 stops22h 17m
Multiple Airlines
Thu 10/87:13 pm
SAN
- BIL
1 stop13h 16m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/510:20 pm
BIL
- SAN
2 stops35h 42m
Multiple Airlines
Tue 10/131:35 pm
SAN
- BIL
1 stop26h 15m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/910:19 am
BIL
- SAN
1 stop27h 21m
Multiple Airlines
Tue 10/131:35 pm
SAN
- BIL
1 stop26h 15m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:00 am
BIL
- SAN
1 stop11h 06m
Multiple Airlines
Thu 8/208:59 pm
SAN
- BIL
1 stop18h 56m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/75:40 pm
BIL
- SAN
1 stop25h 38m
Multiple Airlines
Wed 10/148:32 pm
SAN
- BIL
2 stops35h 57m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/75:40 pm
BIL
- SAN
1 stop25h 38m
Multiple Airlines
Sun 10/117:13 pm
SAN
- BIL
1 stop14h 56m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:00 am
BIL
- SAN
1 stop11h 06m
Multiple Airlines
Mon 8/246:25 am
SAN
- BIL
2 stops12h 43m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/510:20 pm
BIL
- SAN
2 stops35h 42m
Multiple Airlines
Sun 10/117:13 pm
SAN
- BIL
1 stop14h 56m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/910:19 am
BIL
- SAN
1 stop27h 21m
Multiple Airlines
Wed 10/148:32 pm
SAN
- BIL
2 stops35h 57m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$281
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 July 26, 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 July 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 9/86:14 am
BIL
- SAN
1 stop6h 31m
Alaska Airlines
Tue 9/152:50 pm
SAN
- BIL
1 stop7h 39m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 7/23. 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 9/225:20 am
BIL
- SAN
2 stops11h 07m
Delta
Tue 9/297:00 am
SAN
- BIL
2 stops9h 53m
Delta
Deal found 7/23![Delta logo]()
$353
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 8/266:14 am
BIL
- SAN
2 stops10h 57m
Alaska Airlines
Wed 9/23:50 pm
SAN
- BIL
1 stop6h 39m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 7/21. 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 8/115:20 am
BIL
- SAN
1 stop4h 21m
Delta
Tue 8/185:01 pm
SAN
- BIL
1 stop4h 24m
Delta
Deal found 7/21![Delta logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 7/23. 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 8/256:14 am
BIL
- SAN
2 stops10h 57m
Alaska Airlines
Tue 9/14:50 pm
SAN
- BIL
1 stop5h 39m
Alaska Airlines
Deal found 7/23![Alaska Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 7/21. 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.
Mon 8/175:20 am
BIL
- SAN
1 stop4h 21m
Delta
Wed 8/199:46 am
SAN
- BIL
1 stop6h 58m
Delta
Deal found 7/21![Delta logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 7/23. 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 9/226:14 am
BIL
- SAN
1 stop6h 31m
Alaska Airlines
Tue 9/298:05 am
SAN
- BIL
2 stops9h 44m
Alaska Airlines
Deal found 7/23![Alaska Airlines logo]()
$360
This Alaska Airlines deal was found by Cheapflights users on 7/23. 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 9/56:14 am
BIL
- SAN
1 stop9h 30m
Alaska Airlines
Fri 9/116:12 pm
SAN
- BIL
2 stops16h 28m
Alaska Airlines
Deal found 7/23![Alaska Airlines logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 7/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:21 pm
BIL
- SAN
1 stop17h 09m
Alaska Airlines
Thu 8/276:12 pm
SAN
- BIL
1 stop19h 50m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$371
Last-minute flights from Billings to San DiegoDiscover last-minute flight deals from Billings to San Diego. Data last updated July 26, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to San Diego. Data last updated July 26, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:00 am
BIL
- SAN
1 stop11h 06m
Multiple Airlines
Thu 8/208:59 pm
SAN
- BIL
1 stop18h 56m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:00 am
BIL
- SAN
1 stop11h 06m
Multiple Airlines
Mon 8/246:25 am
SAN
- BIL
2 stops12h 43m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:00 am
BIL
- SAN
1 stop11h 06m
Multiple Airlines
Thu 8/208:59 pm
SAN
- BIL
1 stop18h 56m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:00 am
BIL
- SAN
1 stop11h 06m
Multiple Airlines
Mon 8/246:25 am
SAN
- BIL
2 stops12h 43m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:00 am
BIL
- SAN
1 stop11h 06m
Multiple Airlines
Sun 8/238:59 pm
SAN
- BIL
1 stop22h 09m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$317
This Expedia deal was found by Cheapflights users on 7/21. 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.
Thu 8/206:21 pm
BIL
- SAN
1 stop17h 09m
Alaska Airlines
Thu 8/276:12 pm
SAN
- BIL
1 stop19h 50m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:58 pm
BIL
- SAN
2 stops24h 17m
Multiple Airlines
Thu 8/278:59 pm
SAN
- BIL
1 stop17h 11m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$191
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 8/256:14 am
BIL
- SAN
1 stop6h 31m
Alaska Airlines
Tue 9/14:50 pm
SAN
- BIL
1 stop5h 39m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 8/266:14 am
BIL
- SAN
2 stops10h 57m
Alaska Airlines
Wed 9/23:50 pm
SAN
- BIL
1 stop6h 39m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$355
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 July 26, 2026.
Search for one-way flight options from Billings to San Diego. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
This Delta deal was found by Cheapflights users on 7/23. 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.
Fri 8/75:20 am
BIL
- SAN
1 stop4h 21m
Delta
Deal found 7/23![Delta logo]()
$261
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Fri 8/77:00 am
BIL
- SAN
2 stops12h 18m
American Airlines
Deal found 7/23![American Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/710:00 am
BIL
- SAN
3 stops38h 51m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$541
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 July 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $191 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $527 |
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 July 26, 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 - SAN
BILSAN
Billings Logan Intl
Tue 9/8
6:14 am-11:45 am
1 stop6h 31m
San Diego
Tue 9/15
2:50 pm-11:29 pm
1 stop7h 39m
$343
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Tue 9/22
5:20 am-3:27 pm
2 stops11h 07m
San Diego
Tue 9/29
7:00 am-5:53 pm
2 stops9h 53m
$353
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Wed 8/26
6:14 am-4:11 pm
2 stops10h 57m
San Diego
Wed 9/2
3:50 pm-11:29 pm
1 stop6h 39m
$355
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Tue 8/25
6:14 am-4:11 pm
2 stops10h 57m
San Diego
Tue 9/1
4:50 pm-11:29 pm
1 stop5h 39m
$360
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Tue 9/22
6:14 am-11:45 am
1 stop6h 31m
San Diego
Tue 9/29
8:05 am-6:49 pm
2 stops9h 44m
$360
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Sat 9/5
6:14 am-2:44 pm
1 stop9h 30m
San Diego
Fri 9/11
6:12 pm-11:40 am
2 stops16h 28m
$368
Quickest round-trip
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Tue 8/11
5:20 am-8:41 am
1 stop4h 21m
San Diego
Tue 8/18
5:01 pm-10:25 pm
1 stop4h 24m
$371
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Mon 8/17
5:20 am-8:41 am
1 stop4h 21m
San Diego
Wed 8/19
9:46 am-5:44 pm
1 stop6h 58m
$371
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Thu 8/20
6:21 pm-10:30 am
1 stop17h 09m
San Diego
Thu 8/27
6:12 pm-3:02 pm
1 stop19h 50m
$371
Cheapest one-way
Quickest one-way
BillingsSan Diego
BIL - SAN
BILSAN
Billings Logan Intl
Fri 8/7
5:20 am-8:41 am
1 stop4h 21m
$261
Showing 1-10 of 11 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 July.
| 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 $420 and $591 in August.The cheapest round-trip price found within the last 5 days was $191 on Multiple Airlines (Aug 24-Aug 27).
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 July 26, 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.
Boarding
8.1
Overall
7.9
Crew
8.5
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Overall
7.9
Crew
8.5
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Overall
7.9
Crew
8.5
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Overall
7.9
Crew
8.5
Food
7.0
Entertainment
7.0
Comfort
7.8
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
Poway
La Mesa
Coronado
Santee
San Ysidro
Julian
Lemon Grove
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Billings
Popular flights
San Diego flight routes
Alternative routes for Billings to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Diego by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Billings to San Diego by cabin class
Find flights from Billings to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Billings and San Diego flights
Browse other Billings and San Diego flight options. Last updated on July 26, 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 July 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 July 26, 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 2,558,603 searches. Data last updated July 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$343 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$285 | Average$403 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$408 | FlexibilityNo cancel fee | On-time69% |