$89+ Cheap flights from Montana to San Diego (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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SAN
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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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
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Cheapest flights from Montana to San DiegoExplore the most affordable flight options available from Montana to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from Montana to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/32:37 pm -
1 stop6h 59m
Tue 11/108:45 am -
1 stop5h 45m
Deal found 9/15![United Airlines logo]()
$225
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:20 am -
2 stops7h 05m
Tue 11/108:15 am -
1 stop5h 35m
Deal found 9/15![Southwest logo]()
$230
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:15 am -
1 stop7h 20m
Sat 11/712:25 pm -
1 stop5h 30m
Deal found 9/15![Southwest logo]()
$234
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:05 am -
1 stop8h 15m
Wed 12/96:35 am -
1 stop7h 15m
Deal found 9/13![Southwest logo]()
$237
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/206:30 am -
1 stop7h 25m
Mon 10/266:45 am -
1 stop7h 45m
Deal found 9/15![United Airlines logo]()
$240
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 am -
2 stops6h 50m
Mon 10/264:25 pm -
1 stop5h 05m
Deal found 9/15![Southwest logo]()
$245
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/164:22 pm -
1 stop7h 35m
Tue 10/207:00 am -
1 stop7h 28m
Deal found 9/11![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:15 pm -
2 stops7h 00m
Tue 10/207:00 am -
1 stop4h 40m
Deal found 9/11![Southwest logo]()
$252
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/291:12 pm -
1 stop6h 17m
Mon 11/26:15 am -
1 stop4h 52m
Deal found 9/14![Delta logo]()
$255
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:15 pm -
2 stops7h 00m
Sat 10/318:45 am -
2 stops7h 50m
Deal found 9/12![Southwest logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/85:51 pm -
1 stop17h 20m
Wed 11/1110:56 am -
2 stops28h 29m
Deal found 9/14![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/2310:22 am -
1 stop10h 27m
Wed 10/287:33 pm -
2 stops36h 59m
Deal found 9/11![Multiple Airlines logo]()
$286
Best flights from Montana to San DiegoDiscover carefully curated flight deals from Montana to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Montana to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 am -
2 stops6h 50m
Mon 10/264:25 pm -
1 stop5h 05m
Deal found 9/15![Southwest logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 2/1712:43 pm -
Nonstop2h 53m
Sun 2/288:03 am -
Nonstop3h 00m
Deal found 9/15![Alaska Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 9/14. 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 2/175:45 am -
1 stop4h 21m
Sun 2/287:10 pm -
1 stop4h 00m
Deal found 9/14![Delta logo]()
$340
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/14:30 pm -
1 stop6h 57m
Wed 10/76:15 am -
1 stop7h 59m
Deal found 9/15![United Airlines logo]()
$386
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:15 pm -
1 stop6h 55m
Sat 10/1710:25 am -
2 stops9h 25m
Deal found 9/11![Southwest logo]()
$301
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.
Sat 12/54:08 pm -
1 stop5h 48m
Wed 12/96:15 am -
2 stops8h 16m
Deal found 9/10![Alaska Airlines logo]()
$341
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.
Wed 11/44:59 pm -
1 stop6h 36m
Mon 11/912:20 pm -
2 stops26h 59m
Deal found 9/10![Alaska Airlines logo]()
$341
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 10/3110:15 am -
1 stop5h 40m
Tue 11/311:21 am -
1 stop6h 15m
Deal found 9/10![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 9/15. 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 11/205:35 am -
1 stop4h 13m
Wed 11/256:15 am -
1 stop5h 03m
Deal found 9/15![Delta logo]()
$411
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.
Sat 12/52:16 pm -
1 stop9h 40m
Wed 12/97:00 am -
1 stop7h 23m
Deal found 9/10![Alaska Airlines logo]()
$343
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:45 am -
2 stops8h 05m
Sun 11/81:55 pm -
2 stops7h 00m
Deal found 9/10![Southwest logo]()
$403
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 1/149:30 am -
1 stop6h 23m
Sun 1/1711:20 am -
1 stop6h 20m
Deal found 9/13![United Airlines logo]()
$424
This Delta deal was found by Cheapflights users on 9/15. 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 10/285:30 am -
1 stop4h 17m
Mon 11/26:15 am -
1 stop5h 19m
Deal found 9/15![Delta logo]()
$447
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.
Sat 12/54:55 pm -
1 stop27h 57m
Wed 12/91:45 pm -
1 stop25h 28m
Deal found 9/10![Alaska Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/232:30 pm -
1 stop7h 09m
Sun 10/256:45 am -
1 stop5h 49m
Deal found 9/13![United Airlines logo]()
$457
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.
Tue 11/34:59 pm -
2 stops17h 03m
Mon 11/98:12 pm -
2 stops19h 07m
Deal found 9/10![Alaska Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 9/11. 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 10/126:10 pm -
2 stops6h 32m
Wed 10/149:42 am -
1 stop6h 18m
Deal found 9/11![Delta logo]()
$511
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 9/13![Alaska Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/62:36 pm -
2 stops10h 43m
Sun 11/86:45 am -
1 stop5h 49m
Deal found 9/13![United Airlines logo]()
$487
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.
Fri 10/231:08 pm -
2 stops10h 43m
Sun 10/256:15 am -
1 stop5h 13m
Deal found 9/10![Delta logo]()
$521
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.
Sat 11/71:55 pm -
1 stop9h 40m
Sat 11/146:35 pm -
2 stops17h 40m
Deal found 9/10![Alaska Airlines logo]()
$394
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.
Tue 10/134:17 pm -
1 stop5h 28m
Thu 10/157:30 am -
1 stop6h 46m
Deal found 9/10![United Airlines logo]()
$496
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 10/287:03 am -
1 stop5h 47m
Mon 11/28:12 pm -
2 stops18h 19m
Deal found 9/11![Alaska Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 1/2812:09 pm -
1 stop6h 13m
Sun 1/314:50 pm -
1 stop6h 01m
Deal found 9/14![Alaska Airlines logo]()
$411
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 11/65:12 pm -
1 stop6h 23m
Tue 11/106:05 pm -
1 stop19h 47m
Deal found 9/15![Alaska Airlines logo]()
$411
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 10/291:03 pm -
1 stop5h 25m
Tue 11/36:22 pm -
1 stop16h 53m
Deal found 9/10![Alaska Airlines logo]()
$413
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.
Tue 10/137:45 pm -
1 stop15h 21m
Tue 10/206:27 pm -
1 stop16h 56m
Deal found 9/10![Alaska Airlines logo]()
$418
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 10/293:49 pm -
1 stop7h 09m
Mon 11/28:12 pm -
2 stops18h 19m
Deal found 9/11![Alaska Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 11/64:59 pm -
1 stop28h 07m
Sat 11/149:15 am -
1 stop6h 04m
Deal found 9/12![Alaska Airlines logo]()
$442
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 11/512:55 pm -
1 stop5h 42m
Mon 11/98:07 pm -
1 stop16h 08m
Deal found 9/10![Alaska Airlines logo]()
$443
Last-minute flights from Montana to San DiegoDiscover last-minute flight deals from Montana to San Diego. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Montana to San Diego. Data last updated September 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/164:22 pm -
1 stop7h 35m
Tue 10/207:00 am -
1 stop7h 28m
Deal found 9/11![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:15 pm -
2 stops7h 00m
Tue 10/207:00 am -
1 stop4h 40m
Deal found 9/11![Southwest logo]()
$252
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/206:30 am -
1 stop7h 25m
Mon 10/266:45 am -
1 stop7h 45m
Deal found 9/15![United Airlines logo]()
$240
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 am -
2 stops6h 50m
Mon 10/264:25 pm -
1 stop5h 05m
Deal found 9/15![Southwest logo]()
$245
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:15 pm -
2 stops7h 00m
Sat 10/318:45 am -
2 stops7h 50m
Deal found 9/12![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/234:22 pm -
1 stop5h 23m
Sat 10/316:15 am -
1 stop8h 01m
Deal found 9/12![United Airlines logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/2310:22 am -
1 stop10h 27m
Wed 10/287:33 pm -
2 stops36h 59m
Deal found 9/11![Multiple Airlines logo]()
$286
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:15 am -
1 stop7h 20m
Sat 11/712:25 pm -
1 stop5h 30m
Deal found 9/15![Southwest logo]()
$234
This Delta deal was found by Cheapflights users on 9/14. 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 10/285:30 am -
1 stop4h 17m
Tue 11/35:01 pm -
1 stop4h 37m
Deal found 9/14![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/291:12 pm -
1 stop6h 17m
Mon 11/26:15 am -
1 stop4h 52m
Deal found 9/14![Delta logo]()
$255
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:05 am -
2 stops7h 00m
Mon 11/22:40 pm -
1 stop7h 05m
Deal found 9/14![Southwest logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/299:56 am -
1 stop10h 51m
Tue 11/310:56 am -
2 stops45h 10m
Deal found 9/14![Multiple Airlines logo]()
$269
One-way flights from Montana to San DiegoSearch for one-way flight options from Montana to San Diego. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Montana to San Diego. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:47 am -
1 stop9h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$89
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:47 am -
1 stop9h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$93
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/206:30 am -
1 stop7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$113
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 am -
2 stops6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$118
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:08 pm -
1 stop26h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$118
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/104:19 pm -
1 stop4h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$119
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:15 pm -
1 stop7h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$122
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:08 pm -
2 stops43h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$122
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:30 pm -
2 stops7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Southwest logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/303:51 pm -
2 stops27h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$126
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:05 am -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$128
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 10/84:19 pm -
1 stop4h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$129
Find flight deals from Montana to San Diego
Keep the following information in mind while searching for Montana to San Diego flight deals. Data was last updated September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $225 (Delta) |
One-way from | $89 (Kiwi.com) |
Popular in | September |
Cheapest in | March |
Average price | $377 |
Good round-trip deal | $280 or less |
Good one-way deal | $179 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Montana 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 15, 2026.
Use the filters below to find and compare flights from Montana to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BozemanSan Diego
BZN Bozeman Gallatin Field - SAN San Diego
BZNSAN
Bozeman Gallatin Field
Tue 10/20
6:30 am-12:55 pm
1 stop7h 25m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$113
KalispellSan Diego
FCA Kalispell Glacier Park - SAN San Diego
FCASAN
Kalispell Glacier Park
Mon 10/26
11:47 am-10:11 am
2 stops23h 24m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$116
BozemanSan Diego
BZN Bozeman Gallatin Field - SAN San Diego
BZNSAN
Bozeman Gallatin Field
Tue 10/20
6:30 am-12:20 pm
2 stops6h 50m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$118
BozemanSan Diego
BZN Bozeman Gallatin Field - SAN San Diego
BZNSAN
Bozeman Gallatin Field
Wed 11/11
11:20 am-6:55 pm
2 stops8h 35m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
BozemanSan Diego
BZN Bozeman Gallatin Field - SAN San Diego
BZNSAN
Bozeman Gallatin Field
Thu 12/17
1:05 pm-6:06 pm
1 stop6h 01m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$128
BozemanSan Diego
BZN Bozeman Gallatin Field - SAN San Diego
BZNSAN
Bozeman Gallatin Field
Thu 10/15
4:19 pm-8:08 pm
1 stop4h 49m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$129
BozemanSan Diego
BZN Bozeman Gallatin Field - SAN San Diego
BZNSAN
Bozeman Gallatin Field
Wed 10/14
4:19 pm-8:08 pm
1 stop4h 49m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$139
KalispellSan Diego
FCA Kalispell Glacier Park - SAN San Diego
FCASAN
Kalispell Glacier Park
Mon 10/5
3:08 pm-9:43 am
2 stops19h 35m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$140
BozemanSan Diego
BZN Bozeman Gallatin Field - SAN San Diego
BZNSAN
Bozeman Gallatin Field
Tue 3/9
1:30 pm-5:29 pm
1 stop4h 59m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
BozemanSan Diego
BZN Bozeman Gallatin Field - SAN San Diego
BZNSAN
Bozeman Gallatin Field
Mon 3/8
1:30 pm-5:29 pm
1 stop4h 59m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Montana to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Montana with our price prediction graph.
BZN-SAN
FCA-SAN
MSO-SAN
BIL-SAN
GTF-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 Montana to San Diego
USMT-SAN
BZN-SAN
FCA-SAN
MSO-SAN
BIL-SAN
What is the cheapest month to book a flight from Montana to San Diego?
Currently, March is the cheapest month in which you can book a flight from Montana to San Diego (average of $305). Flying from Montana to San Diego in September is currently the most expensive (average of $452). 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 MT to SAN?
Find hourly flight availability from Montana to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2026.
A simple way to save on the total cost of your ticket is to fly from Montana to San Diego in the afternoon. If you’re flexible enough to do this you can expect to save up to 61% on your trip compared to booking a flight at noon.
Weekly flight availability from Montana to San Diego
Explore weekly flight availability from Montana to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2026.
The most flights from USMT to SAN are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Montana to San Diego?
Airfare is below average for this route at the moment.
Montana to San Diego flights typically cost between $256 and $437 in November.The cheapest round-trip price found within the last 5 days was $225 on Delta (Nov 3-Nov 11).
How far ahead should I book a flight from Montana to San Diego?
To ensure you get the cheapest price possible for a flight from Montana to San Diego, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Related info for your journey
Find useful and relevant information for your journey from Montana 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
San Ysidro
Poway
La Mesa
Santee
Julian
Lemon Grove
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Montana to San Diego
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Complete your trip
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Search flights from Montana to San Diego by cabin class
Find flights from Montana to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Montana and San Diego flights
Browse other Montana and San Diego flight options. Last updated on September 15, 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 September 15, 2026.
Montana to San Diego flights
Consider these flights traveling from Montana to San Diego.
Top 4 airlines flying from Montana to San Diego
Discover the top 4 airlines that operate flights from Montana 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 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$105 | Average$415 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$136 | Average$366 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$159 | Average$372 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$211 | Average$328 | FlexibilityNo cancel fee | On-time63% |