$129+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BOS
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from California to Boston 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
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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 8, 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 8, 2026.
This Southwest deal was found by Cheapflights users on 9/3. 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 10/2610:40 pm -
1 stop7h 55m
Thu 10/2910:50 am -
Nonstop6h 15m
Deal found 9/3![Southwest logo]()
$243
This Southwest deal was found by Cheapflights users on 9/3. 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 10/2411:40 am -
Nonstop5h 35m
Wed 10/2810:35 am -
Nonstop6h 15m
Deal found 9/3![Southwest logo]()
$245
This Delta deal was found by Cheapflights users on 9/3. 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 9/2910:04 pm -
Nonstop5h 36m
Tue 10/65:10 pm -
Nonstop6h 18m
Deal found 9/3![Delta logo]()
$247
This Cheapflightsfares deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:20 pm -
Nonstop6h 06m
Sat 10/243:35 pm -
Nonstop6h 11m
Deal found 9/5![JetBlue logo]()
$248
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:34 pm -
Nonstop5h 47m
Tue 10/277:51 am -
Nonstop6h 18m
Deal found 9/5![Alaska Airlines logo]()
$249
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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.
Tue 10/208:20 pm -
Nonstop6h 06m
Sat 10/243:35 pm -
Nonstop6h 11m
Deal found 9/4![JetBlue logo]()
$250
This Southwest deal was found by Cheapflights users on 9/3. 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 10/1910:40 pm -
1 stop7h 55m
Sat 10/249:40 am -
1 stop10h 45m
Deal found 9/3![Southwest logo]()
$253
This KAYAK deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:46 pm -
Nonstop6h 12m
Wed 10/287:00 am -
Nonstop6h 31m
Deal found 9/5![JetBlue logo]()
$256
This JetBlue deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue 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 9/6![JetBlue logo]()
$257
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.
Sat 10/179:53 pm -
Nonstop5h 42m
Sat 10/245:10 pm -
Nonstop6h 18m
Deal found 9/8![Delta logo]()
$258
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:34 pm -
Nonstop5h 47m
Sat 10/247:51 am -
Nonstop6h 18m
Deal found 9/6![Alaska Airlines logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 11/312:14 am -
1 stop8h 30m
Wed 11/1112:39 pm -
2 stops14h 44m
Deal found 9/3![Frontier logo]()
$286
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 8, 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 8, 2026.
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:55 am -
2 stops9h 45m
Thu 11/128:15 am -
Nonstop6h 25m
Deal found 9/5![Southwest logo]()
$292
This Delta deal was found by Cheapflights users on 9/3. 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 9/2511:41 am -
1 stop9h 10m
Tue 9/296:05 am -
1 stop9h 44m
Deal found 9/3![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 10/316:07 am -
1 stop14h 52m
Wed 11/47:13 am -
1 stop9h 57m
Deal found 9/4![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:20 pm -
Nonstop5h 56m
Tue 10/66:00 am -
1 stop8h 25m
Deal found 9/6![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 9/3. 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 11/108:05 pm -
2 stops9h 15m
Sun 11/158:15 am -
Nonstop6h 25m
Deal found 9/3![Southwest logo]()
$292
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:57 pm -
1 stop10h 23m
Tue 12/87:25 am -
2 stops11h 50m
Deal found 9/6![Delta logo]()
$322
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:20 am -
2 stops11h 00m
Wed 10/286:45 am -
2 stops11h 25m
Deal found 9/6![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:43 pm -
1 stop6h 50m
Mon 10/266:05 pm -
1 stop8h 10m
Deal found 9/7![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 9/3. 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 10/276:13 am -
1 stop9h 41m
Thu 10/295:30 am -
1 stop8h 39m
Deal found 9/3![Delta logo]()
$326
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/265:00 pm -
1 stop9h 40m
Sat 1/307:00 am -
1 stop11h 40m
Deal found 9/6![Alaska Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:40 am -
1 stop9h 50m
Tue 9/223:20 pm -
1 stop10h 45m
Deal found 9/5![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:35 pm -
1 stop8h 36m
Tue 10/279:20 am -
2 stops11h 09m
Deal found 9/7![United Airlines logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/262:24 pm -
1 stop12h 16m
Sat 1/307:00 am -
1 stop11h 08m
Deal found 9/7![Alaska Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:20 am -
1 stop9h 38m
Wed 10/147:55 am -
1 stop12h 02m
Deal found 9/7![Delta logo]()
$345
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:40 am -
2 stops9h 40m
Thu 10/296:35 pm -
1 stop8h 15m
Deal found 9/7![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:05 pm -
Nonstop5h 52m
Tue 10/278:05 am -
Nonstop6h 49m
Deal found 9/6![United Airlines logo]()
$366
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:42 am -
1 stop15h 30m
Fri 10/166:40 pm -
1 stop17h 09m
Deal found 9/5![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 9/3. 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 9/2211:54 am -
1 stop9h 35m
Tue 9/294:00 pm -
1 stop9h 40m
Deal found 9/3![Delta logo]()
$352
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:25 pm -
1 stop7h 50m
Tue 10/273:50 pm -
2 stops10h 30m
Deal found 9/6![Southwest logo]()
$333
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/12:05 pm -
Nonstop5h 52m
Tue 10/67:45 am -
Nonstop6h 30m
Deal found 9/4![United Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 9/3. 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 11/235:04 pm -
1 stop10h 16m
Wed 11/257:50 am -
1 stop12h 29m
Deal found 9/3![Delta logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:00 am -
1 stop10h 58m
Fri 11/69:03 am -
1 stop11h 12m
Deal found 9/5![Alaska Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 9/4. 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 10/3012:25 pm -
1 stop7h 50m
Mon 11/24:20 pm -
1 stop10h 35m
Deal found 9/4![Southwest logo]()
$335
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:05 pm -
Nonstop5h 52m
Sun 10/116:00 am -
Nonstop6h 30m
Deal found 9/3![United Airlines logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:59 pm -
1 stop11h 27m
Fri 10/239:03 am -
1 stop11h 56m
Deal found 9/7![Alaska Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:30 pm -
1 stop8h 28m
Sat 9/266:05 am -
1 stop8h 15m
Deal found 9/7![Delta logo]()
$367
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/110:40 pm -
1 stop7h 07m
Thu 10/86:00 am -
1 stop8h 18m
Deal found 9/3![United Airlines logo]()
$378
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:15 pm -
2 stops12h 40m
Tue 10/67:20 am -
1 stop8h 30m
Deal found 9/7![Southwest logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:08 am -
1 stop9h 46m
Wed 9/307:12 am -
1 stop12h 25m
Deal found 9/6![Alaska Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:02 pm -
1 stop10h 38m
Sat 10/36:05 am -
1 stop8h 15m
Deal found 9/7![Delta logo]()
$367
Last-minute flights from California to BostonDiscover last-minute flight deals from California to Boston. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from California to Boston. Data last updated September 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/3. 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 9/2910:04 pm -
Nonstop5h 36m
Tue 10/65:10 pm -
Nonstop6h 18m
Deal found 9/3![Delta logo]()
$247
This JetBlue deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue 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 9/6![JetBlue logo]()
$257
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.
Sat 10/179:53 pm -
Nonstop5h 42m
Sat 10/245:10 pm -
Nonstop6h 18m
Deal found 9/8![Delta logo]()
$258
This Southwest deal was found by Cheapflights users on 9/3. 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 10/1910:40 pm -
1 stop7h 55m
Sat 10/249:40 am -
1 stop10h 45m
Deal found 9/3![Southwest logo]()
$253
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:34 pm -
Nonstop5h 47m
Tue 10/277:51 am -
Nonstop6h 18m
Deal found 9/5![Alaska Airlines logo]()
$249
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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.
Tue 10/208:20 pm -
Nonstop6h 06m
Sat 10/243:35 pm -
Nonstop6h 11m
Deal found 9/4![JetBlue logo]()
$250
This Orbitz deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:53 pm -
1 stop10h 59m
Sat 10/2411:42 am -
1 stop14h 10m
Deal found 9/5![Frontier logo]()
$289
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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
Sat 10/243:35 pm -
Nonstop6h 11m
Deal found 9/4![JetBlue logo]()
$248
This KAYAK deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:46 pm -
Nonstop6h 12m
Wed 10/287:00 am -
Nonstop6h 31m
Deal found 9/5![JetBlue logo]()
$256
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:34 pm -
Nonstop5h 47m
Sat 10/247:51 am -
Nonstop6h 18m
Deal found 9/6![Alaska Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 9/3. 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 10/2411:40 am -
Nonstop5h 35m
Wed 10/2810:35 am -
Nonstop6h 15m
Deal found 9/3![Southwest logo]()
$245
This Southwest deal was found by Cheapflights users on 9/3. 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 10/2610:40 pm -
1 stop7h 55m
Thu 10/2910:50 am -
Nonstop6h 15m
Deal found 9/3![Southwest logo]()
$243
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 8, 2026.
Search for one-way flight options from California to Boston. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:53 pm -
Nonstop5h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$129
This Southwest deal was found by Cheapflights users on 9/3. 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 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$132
This Super.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com 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 9/6![JetBlue logo]()
$133
This Jetabroad deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad 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 9/6![JetBlue logo]()
$134
This Jetabroad deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:30 pm -
1 stop10h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![JetBlue logo]()
$135
This Super.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:40 pm -
1 stop10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![JetBlue logo]()
$136
This Super.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:50 pm -
1 stop7h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![JetBlue logo]()
$137
This Jetabroad deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad 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 9/6![JetBlue logo]()
$138
This Delta deal was found by Cheapflights users on 9/4. 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 10/139:53 pm -
Nonstop5h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$139
This Super.com deal was found by Cheapflights users on 9/3. 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.
Fri 12/48:45 pm -
1 stop7h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![JetBlue logo]()
$140
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:25 am -
Nonstop5h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Southwest logo]()
$141
This Delta deal was found by Cheapflights users on 9/3. 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 9/2510:04 pm -
Nonstop5h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$142
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 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $243 (Southwest) |
One-way from | $129 (Delta) |
Popular in | June |
Cheapest in | January |
Average price | $384 |
Good round-trip deal | $275 or less |
Good one-way deal | $177 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 8, 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
Quickest round-trip
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Thu 2/25
10:00 pm-6:38 am
Nonstop5h 38m
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 10/3
10:30 pm-9:33 am
1 stop8h 03m
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
Thu 10/29
12:45 pm-1:15 am
2 stops9h 30m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$144
Long BeachBoston
LGB Long Beach Municipal - BOS Boston Logan Intl
LGBBOS
Long Beach Municipal
Fri 10/23
2:40 pm-1:15 am
1 stop7h 35m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$149
Long BeachBoston
LGB Long Beach Municipal - BOS Boston Logan Intl
LGBBOS
Long Beach Municipal
Tue 10/6
6:55 am-6:35 pm
1 stop8h 40m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$149
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 2/19
10:30 pm-9:24 am
1 stop7h 54m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$152
San JoseBoston
SJC San Jose - BOS Boston Logan Intl
SJCBOS
San Jose
Sat 12/5
7:35 pm-8:02 am
1 stop9h 27m
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
Sat 1/23
5:00 pm-6:11 am
1 stop10h 11m
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
Sat 10/10
4:31 pm-5:27 am
1 stop9h 56m
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 12/9
8:40 am-7:45 pm
1 stop8h 05m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$153
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.
SAN-BOS
SJC-BOS
SFO-BOS
LGB-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
SAN-BOS
SJC-BOS
SFO-BOS
LGB-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 8, 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 8, 2026.
The most flights from USCA to BOS are scheduled on a Monday (56 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 $287 and $496 in November.The cheapest round-trip price found within the last 5 days was $286 on Frontier (Nov 3-Nov 11).
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 5, 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 8, 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 8, 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 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$379 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$102 | Average$246 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$416 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$133 | Average$238 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$135 | Average$415 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$148 | Average$362 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$195 | Average$436 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$204 | Average$464 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$208 | Average$445 | FlexibilityNo cancel fee | On-time71% |