$105+ Cheap flights from California to Boston (BOS)
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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BOS
Oct 13 — Oct 201
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 California to BostonExplore the most affordable flight options available from California to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
Explore the most affordable flight options available from California to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:20 pm -
Nonstop6h 06m
Wed 10/283:50 pm -
Nonstop6h 24m
Deal found 9/10![JetBlue logo]()
$248
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:40 pm -
1 stop10h 01m
Sat 11/141:00 pm -
1 stop10h 22m
Deal found 9/9![JetBlue logo]()
$250
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:40 pm -
1 stop10h 01m
Thu 11/121:00 pm -
1 stop10h 22m
Deal found 9/11![JetBlue logo]()
$251
This Flysmarter 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/172:45 pm -
Nonstop6h 12m
Sat 10/243:35 pm -
Nonstop6h 11m
Deal found 9/9![JetBlue logo]()
$253
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:20 pm -
Nonstop6h 06m
Mon 11/27:00 am -
Nonstop6h 31m
Deal found 9/8![JetBlue logo]()
$255
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:53 pm -
Nonstop5h 42m
Sat 10/245:10 pm -
Nonstop6h 18m
Deal found 9/9![Delta logo]()
$257
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:25 pm -
Nonstop6h 09m
Tue 10/137:00 am -
Nonstop6h 09m
Deal found 9/10![JetBlue logo]()
$258
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:24 am -
1 stop10h 35m
Tue 10/271:00 pm -
1 stop10h 25m
Deal found 9/11![JetBlue logo]()
$259
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:40 pm -
1 stop10h 01m
Thu 11/191:24 pm -
1 stop9h 15m
Deal found 9/11![JetBlue logo]()
$260
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 10/218:34 pm -
Nonstop5h 47m
Sat 10/247:51 am -
Nonstop6h 18m
Deal found 9/11![Alaska Airlines logo]()
$267
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:20 pm -
Nonstop6h 06m
Fri 10/237:00 am -
Nonstop6h 09m
Deal found 9/10![JetBlue logo]()
$268
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.
Tue 10/2012:14 am -
1 stop8h 38m
Wed 10/2812:39 pm -
2 stops22h 09m
Deal found 9/10![Frontier logo]()
$285
Best flights from California to BostonDiscover carefully curated flight deals from California to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from California to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
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.
Sat 11/149:35 am -
Nonstop5h 30m
Mon 11/168:25 am -
Nonstop6h 20m
Deal found 9/10![Southwest logo]()
$257
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:40 pm -
1 stop10h 01m
Sat 10/313:50 pm -
Nonstop6h 24m
Deal found 9/12![JetBlue logo]()
$277
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/212:51 pm -
1 stop9h 26m
Tue 10/611:30 am -
1 stop9h 08m
Deal found 9/9![Delta logo]()
$305
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.
Fri 11/138:58 pm -
1 stop18h 02m
Mon 11/166:09 pm -
1 stop21h 28m
Deal found 9/10![Alaska Airlines logo]()
$342
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 10/242:26 pm -
1 stop7h 28m
Thu 10/2911:34 am -
1 stop8h 59m
Deal found 9/11![United Airlines logo]()
$347
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.
Tue 10/206:30 am -
2 stops11h 50m
Wed 10/2810:55 am -
2 stops10h 55m
Deal found 9/12![Southwest logo]()
$307
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:00 am -
1 stop12h 17m
Wed 10/286:39 pm -
1 stop9h 25m
Deal found 9/11![JetBlue logo]()
$320
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:52 pm -
2 stops13h 50m
Tue 10/66:05 am -
1 stop9h 04m
Deal found 9/13![Delta logo]()
$322
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.
Sat 10/176:30 am -
1 stop10h 20m
Sat 10/245:15 am -
2 stops10h 05m
Deal found 9/13![Southwest logo]()
$308
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.
Thu 10/2911:58 pm -
1 stop7h 20m
Mon 11/26:05 pm -
1 stop8h 10m
Deal found 9/11![United Airlines logo]()
$349
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:31 pm -
1 stop9h 56m
Sat 10/177:55 am -
1 stop12h 07m
Deal found 9/12![Delta logo]()
$325
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.
Wed 10/287:01 am -
1 stop19h 27m
Wed 11/47:03 am -
1 stop12h 18m
Deal found 9/9![Alaska Airlines logo]()
$363
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop8h 24m
Thu 10/226:40 pm -
1 stop9h 04m
Deal found 9/8![JetBlue logo]()
$332
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:50 pm -
2 stops9h 25m
Sat 10/315:30 am -
2 stops11h 00m
Deal found 9/9![Southwest logo]()
$315
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.
Wed 10/1412:57 pm -
1 stop9h 23m
Fri 10/236:05 am -
1 stop9h 42m
Deal found 9/11![Delta logo]()
$325
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.
Tue 11/38:20 am -
Nonstop5h 33m
Thu 11/58:25 am -
Nonstop6h 38m
Deal found 9/8![United Airlines logo]()
$362
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am -
1 stop8h 21m
Sat 10/36:40 pm -
1 stop8h 30m
Deal found 9/11![JetBlue logo]()
$334
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 1/305:23 pm -
1 stop9h 17m
Wed 2/37:00 am -
1 stop12h 27m
Deal found 9/10![Alaska Airlines logo]()
$377
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.
Wed 10/286:55 am -
1 stop8h 40m
Fri 10/309:40 am -
1 stop11h 10m
Deal found 9/12![Southwest logo]()
$317
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:33 pm -
1 stop9h 02m
Fri 10/2310:50 am -
1 stop9h 12m
Deal found 9/12![Delta logo]()
$325
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.
Sun 11/86:30 pm -
1 stop8h 22m
Wed 11/114:45 pm -
1 stop8h 15m
Deal found 9/12![United Airlines logo]()
$362
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:38 pm -
1 stop8h 23m
Fri 10/234:05 pm -
1 stop9h 28m
Deal found 9/12![JetBlue logo]()
$337
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 10/2210:27 am -
1 stop16h 45m
Tue 10/276:40 pm -
1 stop17h 26m
Deal found 9/11![Alaska Airlines logo]()
$377
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:00 pm -
1 stop6h 30m
Thu 11/510:10 am -
2 stops9h 55m
Deal found 9/8![Southwest logo]()
$325
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:13 am -
1 stop9h 41m
Thu 10/295:50 am -
1 stop9h 50m
Deal found 9/8![Delta logo]()
$326
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.
Wed 10/214:20 pm -
Nonstop5h 39m
Sat 10/318:35 am -
Nonstop6h 38m
Deal found 9/11![United Airlines logo]()
$367
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:40 pm -
1 stop9h 21m
Mon 10/266:00 am -
Nonstop6h 30m
Deal found 9/12![JetBlue logo]()
$347
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.
Wed 11/186:59 pm -
1 stop9h 21m
Sat 11/217:40 am -
1 stop13h 13m
Deal found 9/8![Alaska Airlines logo]()
$398
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.
Wed 9/236:10 am -
1 stop10h 05m
Tue 9/2910:55 am -
1 stop9h 29m
Deal found 9/11![Delta logo]()
$335
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:40 pm -
1 stop9h 50m
Sun 11/15:00 am -
1 stop8h 30m
Deal found 9/8![Southwest logo]()
$337
Last-minute flights from California to BostonDiscover last-minute flight deals from California to Boston. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from California to Boston. Data last updated September 13, 2026 and is based on user searches.
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.
Sun 10/49:40 pm -
1 stop10h 11m
Wed 11/1812:39 pm -
2 stops14h 44m
Deal found 9/11![Frontier logo]()
$297
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:14 am -
1 stop8h 38m
Sat 10/2411:42 am -
1 stop9h 00m
Deal found 9/10![Frontier logo]()
$287
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 10/1312:14 am -
1 stop8h 38m
Wed 10/2112:57 pm -
2 stops21h 37m
Deal found 9/9![Frontier logo]()
$289
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:14 am -
1 stop8h 38m
Wed 10/2810:07 am -
1 stop9h 52m
Deal found 9/8![Multiple Airlines logo]()
$292
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.
Tue 10/2012:14 am -
1 stop8h 38m
Wed 10/2812:39 pm -
2 stops22h 09m
Deal found 9/10![Frontier logo]()
$285
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.
Tue 10/2012:14 am -
1 stop8h 38m
Sat 10/3111:27 am -
1 stop9h 26m
Deal found 9/11![Frontier logo]()
$286
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:53 pm -
1 stop10h 59m
Tue 10/2711:12 am -
1 stop14h 56m
Deal found 9/8![Frontier logo]()
$289
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:15 pm -
1 stop9h 06m
Sat 10/317:03 am -
1 stop11h 49m
Deal found 9/8![Alaska Airlines logo]()
$292
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:40 am -
2 stops11h 40m
Thu 11/52:30 pm -
1 stop10h 15m
Deal found 9/9![Southwest logo]()
$296
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:10 pm -
1 stop13h 16m
Wed 11/47:13 am -
1 stop9h 54m
Deal found 9/10![Alaska Airlines logo]()
$297
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.
Thu 10/2911:58 pm -
1 stop7h 20m
Sat 11/75:57 pm -
1 stop8h 19m
Deal found 9/9![United Airlines logo]()
$291
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.
Thu 10/2911:34 am -
1 stop9h 25m
Sat 10/3111:27 am -
1 stop9h 26m
Deal found 9/9![Multiple Airlines logo]()
$294
One-way flights from California to BostonSearch for one-way flight options from California to Boston. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from California to Boston. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
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.
Sat 10/316:55 am -
1 stop9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Southwest logo]()
$105
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.
Mon 11/92:35 pm -
1 stop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Southwest logo]()
$119
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:40 pm -
1 stop10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![JetBlue logo]()
$129
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:24 am -
1 stop10h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![JetBlue logo]()
$130
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:53 pm -
1 stop10h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$130
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:35 am -
1 stop10h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![JetBlue logo]()
$131
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:48 am -
1 stop9h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![JetBlue logo]()
$132
This Jetabroad 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:40 pm -
1 stop10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![JetBlue logo]()
$134
This Jetabroad 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:40 pm -
1 stop10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![JetBlue logo]()
$135
This Jetabroad 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:20 am -
Nonstop5h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![JetBlue logo]()
$136
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:40 pm -
1 stop10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![JetBlue logo]()
$139
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.
Fri 10/309:30 am -
Nonstop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Southwest logo]()
$141
Find flight deals from California to Boston
Keep the following information in mind while searching for California to Boston flight deals. Data was last updated September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $248 (Cheapflightsfares) |
One-way from | $105 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $394 |
Good round-trip deal | $304 or less |
Good one-way deal | $180 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from California to Boston 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 13, 2026.
Use the filters below to find and compare flights from California to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Tue 11/3
9:53 pm-6:35 am
Nonstop5h 42m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$129
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 10/10
2:07 pm-12:54 am
1 stop7h 47m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$139
Quickest round-trip
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 12/12
10:13 pm-6:40 am
Nonstop5h 27m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$139
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 10/23
9:53 pm-6:35 am
Nonstop5h 42m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$141
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Wed 11/4
10:55 am-11:40 pm
2 stops9h 45m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$144
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 10/17
6:30 am-7:50 pm
1 stop10h 20m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$144
San JoseBoston
SJC San Jose - BOS Boston Logan Intl
SJCBOS
San Jose
Wed 10/14
2:08 pm-12:54 am
1 stop7h 46m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$153
San JoseBoston
SJC San Jose - BOS Boston Logan Intl
SJCBOS
San Jose
Wed 10/28
1:45 pm-11:55 pm
1 stop7h 10m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$153
San JoseBoston
SJC San Jose - BOS Boston Logan Intl
SJCBOS
San Jose
Mon 1/4
7:00 am-7:21 pm
1 stop9h 21m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$153
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 10/23
12:45 pm-1:15 am
2 stops9h 30m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$156
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from California to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from California with our price prediction graph.
LGB-BOS
SAN-BOS
LAS-BOS
LAX-BOS
SMF-BOS
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 California to Boston
USCA-BOS
LGB-BOS
SAN-BOS
LAS-BOS
LAX-BOS
What is the cheapest month to book a flight from California to Boston?
Currently, January is the cheapest month in which you can book a flight from California to Boston (average of $321). Flying from California to Boston in June is currently the most expensive (average of $489). 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 CA to BOS?
Find hourly flight availability from California to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 13, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 26% on flights from California to Boston by exploring options for tickets in the evening.
Weekly flight availability from California to Boston
Explore weekly flight availability from California to Boston. 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 13, 2026.
The most flights from USCA to BOS are scheduled on a Friday (52 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (36 on average).
How much does it cost to fly round-trip from California to Boston?
Airfare is below average for this route at the moment.
California to Boston flights typically cost between $297 and $503 in October.The cheapest round-trip price found within the last 5 days was $285 on Frontier (Oct 20-Oct 28).
How far ahead should I book a flight from California to Boston?
The price you pay for your flight from California to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from California to Boston?
Use this chart to determine the cheapest time to fly round-trip from California to Boston. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their California to Boston flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from California to Boston. 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 Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Seekonk
Dedham
Cranston
Warwick
Pawtucket
Peabody
Auburn
Revere
York Beach
Londonderry
Fitchburg
North Falmouth
Swansea
Chelsea
Braintree
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
Boston flight routes
Complete your trip
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Alternative routes for California to Boston
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from California to Boston by cabin class
Find flights from California to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
California and Boston flights
Browse other California and Boston flight options. Last updated on September 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
California to Boston flights
Consider these flights traveling from California to Boston.
Top 9 airlines flying from California to Boston
Discover the top 9 airlines that operate flights from California to Boston. 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 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$251 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$414 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$133 | Average$238 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$135 | Average$420 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$168 | Average$467 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$186 | Average$385 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$196 | Average$435 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$204 | Average$464 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$214 | Average$454 | FlexibilityNo cancel fee | On-time71% |