HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$284+ Cheap flights from Butte to San Diego (BTM - 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
BTM — SAN
Mar 23 — Mar 301
Mon 3/23
Mon 3/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Butte 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 Butte to San Diego

Cheapest flights from Butte to San Diego
Explore the most affordable flight options available from Butte to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2026.

This United Airlines deal was found by Cheapflights users on 2/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2710:00 am
BTM
-
SAN
1 stop8h 40m
United Airlines
Sun 3/14:10 pm
SAN
-
BTM
1 stop5h 16m
United Airlines
Deal found 2/21$445
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 3/1310:00 am
BTM
-
SAN
1 stop6h 00m
United Airlines
Mon 3/164:12 pm
SAN
-
BTM
1 stop5h 14m
United Airlines
Deal found 2/20$458
This United Airlines deal was found by Cheapflights users on 2/19. 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 2/2810:00 am
BTM
-
SAN
1 stop6h 00m
United Airlines
Tue 3/312:55 pm
SAN
-
BTM
1 stop8h 31m
United Airlines
Deal found 2/19$464
This Delta deal was found by Cheapflights users on 2/19. 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 2/206:10 pm
BTM
-
SAN
1 stop6h 36m
Delta
Sun 2/229:45 am
SAN
-
BTM
1 stop6h 24m
Delta
Deal found 2/19$494
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Fri 2/2010:00 am
BTM
-
SAN
2 stops14h 40m
United Airlines
Sun 2/224:10 pm
SAN
-
BTM
1 stop5h 16m
United Airlines
Deal found 2/19$774

Find flight deals from Butte to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Butte (BTM) 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 February 21, 2026.

Round-trip from

$458
(United Airlines)

One-way from

$284
(Delta)
From Butte Silver Bow Co to San Diego
Search Deals
One-way flight from Butte Silver Bow Co to San Diego
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Butte 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 February 21, 2026.
Use the filters below to find and compare flights from Butte to San Diego that are best for you.

Fly from

Butte

Fly to

San Diego

Route

Depart

Return

Price

ButteSan Diego

BTM - SAN

BTMSAN

Butte Silver Bow Co

Fri 3/13

10:00 am-3:00 pm

1 stop6h 00m

San Diego

Mon 3/16

4:12 pm-10:26 pm

1 stop5h 14m

$458

ButteSan Diego

BTM - SAN

BTMSAN

Butte Silver Bow Co

Fri 3/13

6:10 pm-11:44 pm

1 stop6h 34m

San Diego

Mon 3/16

9:50 am-5:08 pm

1 stop6h 18m

$1,199

ButteSan Diego

BTM - SAN

BTMSAN

Butte Silver Bow Co

Wed 3/18

6:10 pm-11:48 pm

1 stop6h 38m

$284

ButteSan Diego

BTM - SAN

BTMSAN

Butte Silver Bow Co

Mon 5/25

3:15 pm-6:45 pm

1 stop4h 30m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from Butte to San Diego

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

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

Currently, March is the cheapest month in which you can book a flight from Butte to San Diego (average of $118). Flying from Butte to San Diego in January is currently the most expensive (average of $176). 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.

Related info for your journey

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

    For as low as $458, United Airlines can have you in San Diego from Butte in 6h. There are 946 mi between Butte and San Diego. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Butte to San Diego (average of $118). Flying from Butte to San Diego in January is currently the most expensive (average of $176). 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

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 Butte to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Los Angeles flights
Bozeman to San Francisco flights
Bozeman to San Diego flights
Bozeman to Las Vegas flights
Kalispell to Las Vegas flights
Kalispell to Los Angeles flights
Missoula to Las Vegas flights
Missoula to Santa Ana flights
Missoula to Los Angeles flights
Missoula to San Diego flights
Billings to San Diego flights
Missoula to San Francisco flights
Billings to Las Vegas flights
Kalispell to Sacramento flights
Missoula to Oakland flights
Bozeman to Santa Ana flights
Kalispell to San Francisco flights
Kalispell to San Diego flights
Missoula to Sacramento flights
Helena to Las Vegas flights
Missoula to Ontario flights
Missoula to Palm Springs flights
Bozeman to Sacramento flights
Billings to Los Angeles flights
Missoula to Burbank flights
Billings to San Francisco flights
Great Falls to Las Vegas flights
Bozeman to Ontario flights
Kalispell to Santa Ana flights
Billings to Ontario flights
Cody to Ontario flights
Bozeman to San Jose flights
Kalispell to Ontario flights
Missoula to Reno flights
Billings to Reno flights
Billings to Santa Ana flights
Missoula to Long Beach flights
Bozeman to Oakland flights
Billings to Sacramento flights
Bozeman to Palm Springs flights
Kalispell to Burbank flights
Helena to San Diego flights
Billings to Medford flights
Great Falls to San Francisco flights
Kalispell to Palm Springs flights
Billings to Palm Springs flights
Bozeman to Santa Barbara flights
Missoula to San Jose flights
Bozeman to Reno flights
Great Falls to San Diego flights

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.