$161+ Cheap flights from Boston (BOS) to Fremont, CA
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Fremont with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Boston Logan Intl to Fremont are usually found in January or November, booked 86 days in advance, depart on a Wednesday or Friday and return on a Wednesday
Cheap flight deals from Boston to Fremont
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to FremontExplore the most affordable flight options available from Boston to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
Explore the most affordable flight options available from Boston to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
This Frontier deal was found by Cheapflights users on 8/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:45 pm -
1 stop9h 18m
Mon 8/3110:35 pm -
1 stop10h 12m
Deal found 8/6![Frontier logo]()
$280
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:45 pm -
1 stop9h 18m
Sat 8/2910:35 pm -
1 stop10h 12m
Deal found 8/7![Frontier logo]()
$282
This Frontier deal was found by Cheapflights users on 8/10. 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 8/1812:45 pm -
1 stop9h 18m
Mon 8/2410:35 pm -
1 stop10h 12m
Deal found 8/10![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:33 am -
1 stop10h 04m
Sat 9/510:35 pm -
1 stop10h 12m
Deal found 8/6![Multiple Airlines logo]()
$284
This Frontier deal was found by Cheapflights users on 8/10. 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.
Wed 8/1912:45 pm -
1 stop9h 18m
Fri 8/2810:35 pm -
1 stop10h 12m
Deal found 8/10![Frontier logo]()
$285
This Southwest deal was found by Cheapflights users on 8/10. 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 10/24:50 pm -
1 stop10h 15m
Tue 10/66:50 pm -
2 stops11h 00m
Deal found 8/10![Southwest logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Wed 8/1912:45 pm -
2 stops22h 27m
Mon 8/2410:35 pm -
1 stop10h 12m
Deal found 8/9![Frontier logo]()
$287
This CheapOair deal was found by Cheapflights users on 8/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:45 pm -
1 stop9h 18m
Wed 8/266:00 am -
Nonstop5h 41m
Deal found 8/11![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Wed 9/212:45 pm -
1 stop9h 18m
Thu 9/105:16 pm -
1 stop9h 31m
Deal found 8/9![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
Fri 8/2112:45 pm -
1 stop9h 18m
Fri 8/287:30 pm -
2 stops37h 17m
Deal found 8/10![Frontier logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 8/2112:45 pm -
1 stop9h 18m
Wed 8/265:35 pm -
2 stops15h 12m
Deal found 8/11![Frontier logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Wed 9/212:45 pm -
1 stop9h 18m
Sun 9/65:19 pm -
1 stop9h 28m
Deal found 8/11![Multiple Airlines logo]()
$292
Best flights from Boston to FremontDiscover carefully curated flight deals from Boston to Fremont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
Discover carefully curated flight deals from Boston to Fremont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
This Delta deal was found by Cheapflights users on 8/6. 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.
Sat 9/125:15 pm -
Nonstop6h 30m
Sat 9/197:10 am -
Nonstop5h 47m
Deal found 8/6![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 8/11. 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.
Wed 9/93:20 pm -
2 stops11h 00m
Thu 9/1710:50 am -
1 stop10h 40m
Deal found 8/11![Southwest logo]()
$319
This JetBlue deal was found by Cheapflights users on 8/6. 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.
Thu 10/159:30 pm -
Nonstop6h 28m
Sat 10/247:30 am -
Nonstop6h 00m
Deal found 8/6![JetBlue logo]()
$333
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Thu 10/16:00 am -
Nonstop6h 30m
Sat 10/310:42 pm -
1 stop7h 51m
Deal found 8/10![United Airlines logo]()
$358
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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.
Sun 9/208:00 am -
1 stop16h 42m
Sat 10/34:43 pm -
1 stop9h 38m
Deal found 8/8![Alaska Airlines logo]()
$385
This JetBlue deal was found by Cheapflights users on 8/11. 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 9/87:00 am -
Nonstop6h 30m
Thu 9/172:39 pm -
Nonstop6h 20m
Deal found 8/11![JetBlue logo]()
$358
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Fri 9/47:45 am -
Nonstop6h 30m
Tue 9/812:10 pm -
Nonstop5h 52m
Deal found 8/7![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 8/8. 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 9/56:25 am -
1 stop18h 50m
Tue 9/157:10 am -
Nonstop5h 47m
Deal found 8/8![Delta logo]()
$365
This JetBlue deal was found by Cheapflights users on 8/7. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:30 am -
Nonstop6h 30m
Fri 9/1110:15 am -
Nonstop5h 45m
Deal found 8/7![JetBlue logo]()
$358
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Fri 9/47:45 am -
Nonstop6h 30m
Mon 9/711:18 pm -
Nonstop5h 56m
Deal found 8/7![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/7. 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.
Tue 10/137:45 am -
Nonstop6h 40m
Sat 10/243:00 pm -
Nonstop5h 39m
Deal found 8/7![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Sat 8/295:45 am -
1 stop8h 27m
Mon 9/79:10 pm -
Nonstop5h 52m
Deal found 8/8![United Airlines logo]()
$368
Last-minute flights from Boston to FremontDiscover last-minute flight deals from Boston to Fremont. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Fremont. Data last updated August 11, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/10. 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 8/1812:45 pm -
1 stop9h 18m
Mon 8/2410:35 pm -
1 stop10h 12m
Deal found 8/10![Frontier logo]()
$283
This Frontier deal was found by Cheapflights users on 8/10. 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.
Wed 8/1912:45 pm -
1 stop9h 18m
Fri 8/2810:35 pm -
1 stop10h 12m
Deal found 8/10![Frontier logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Wed 8/1912:45 pm -
2 stops22h 27m
Mon 8/2410:35 pm -
1 stop10h 12m
Deal found 8/9![Frontier logo]()
$287
This CheapOair deal was found by Cheapflights users on 8/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:45 pm -
1 stop9h 18m
Wed 8/266:00 am -
Nonstop5h 41m
Deal found 8/11![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
Fri 8/2112:45 pm -
1 stop9h 18m
Fri 8/287:30 pm -
2 stops37h 17m
Deal found 8/10![Frontier logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 8/2112:45 pm -
1 stop9h 18m
Wed 8/265:35 pm -
2 stops15h 12m
Deal found 8/11![Frontier logo]()
$291
This Frontier deal was found by Cheapflights users on 8/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:45 pm -
1 stop9h 18m
Mon 8/3110:35 pm -
1 stop10h 12m
Deal found 8/6![Frontier logo]()
$280
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:45 pm -
1 stop9h 18m
Sat 8/2910:35 pm -
1 stop10h 12m
Deal found 8/7![Frontier logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Wed 9/212:45 pm -
1 stop9h 18m
Thu 9/105:16 pm -
1 stop9h 31m
Deal found 8/9![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Wed 9/212:45 pm -
1 stop9h 18m
Sun 9/65:19 pm -
1 stop9h 28m
Deal found 8/11![Multiple Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:33 am -
1 stop10h 04m
Sat 9/510:35 pm -
1 stop10h 12m
Deal found 8/6![Multiple Airlines logo]()
$284
This Southwest deal was found by Cheapflights users on 8/9. 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 9/118:40 am -
1 stop11h 55m
Tue 9/157:10 pm -
2 stops11h 45m
Deal found 8/9![Southwest logo]()
$286
One-way flights from Boston to FremontSearch for one-way flight options from Boston to Fremont. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
Search for one-way flight options from Boston to Fremont. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
Sat 10/312:54 pm -
2 stops22h 20m
Deal found 8/10![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:36 am -
2 stops14h 04m
Deal found 8/7![Frontier logo]()
$162
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:30 am -
1 stop9h 06m
Deal found 8/10![American Airlines logo]()
$164
This Frontier deal was found by Cheapflights users on 8/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:52 pm -
1 stop10h 16m
Deal found 8/6![Frontier logo]()
$165
This Super.com deal was found by Cheapflights users on 8/11. 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.
Wed 9/96:50 am -
Nonstop6h 23m
Deal found 8/11![JetBlue logo]()
$166
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:55 am -
Nonstop6h 35m
Deal found 8/11![JetBlue logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:54 pm -
2 stops22h 50m
Deal found 8/7![Frontier logo]()
$168
This Delta deal was found by Cheapflights users on 8/11. 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.
Sat 9/197:35 am -
Nonstop6h 29m
Deal found 8/11![Delta logo]()
$169
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/38:00 am -
1 stop9h 45m
Deal found 8/11![Alaska Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:45 pm -
2 stops34h 11m
Deal found 8/6![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:45 pm -
2 stops22h 27m
Deal found 8/6![Frontier logo]()
$172
Find flight deals from Boston to Fremont
Keep the following information in mind while searching for Boston to Fremont flight deals. Data was last updated August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $282 (Frontier) |
One-way from | $161 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $413 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Fremont that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Boston to Fremont that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Sat 9/12
5:15 pm-8:45 pm
Nonstop6h 30m
San Francisco
Sat 9/19
7:10 am-3:57 pm
Nonstop5h 47m
$307
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Wed 9/9
3:20 pm-11:20 pm
2 stops11h 00m
San Francisco
Thu 9/17
10:50 am-12:30 am
1 stop10h 40m
$319
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Thu 10/15
9:30 pm-12:58 am
Nonstop6h 28m
San Francisco
Sat 10/24
7:30 am-4:30 pm
Nonstop6h 00m
$333
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Thu 10/1
6:00 am-9:30 am
Nonstop6h 30m
San Francisco
Sat 10/3
10:42 pm-9:33 am
1 stop7h 51m
$358
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Tue 9/8
7:00 am-10:30 am
Nonstop6h 30m
San Francisco
Thu 9/17
2:39 pm-11:59 pm
Nonstop6h 20m
$358
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Fri 9/4
7:45 am-11:15 am
Nonstop6h 30m
San Francisco
Tue 9/8
12:10 pm-9:02 pm
Nonstop5h 52m
$358
Quickest round-trip
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Wed 9/2
6:30 am-10:00 am
Nonstop6h 30m
San Francisco
Fri 9/11
10:15 am-7:00 pm
Nonstop5h 45m
$358
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Fri 9/4
7:45 am-11:15 am
Nonstop6h 30m
San Francisco
Mon 9/7
11:18 pm-8:14 am
Nonstop5h 56m
$359
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Sat 9/5
6:25 am-10:15 pm
1 stop18h 50m
San Francisco
Tue 9/15
7:10 am-3:57 pm
Nonstop5h 47m
$365
BostonSan Francisco
BOS Boston Logan Intl - SFO San Francisco
BOSSFO
Boston Logan Intl
Sat 8/29
5:45 am-11:12 am
1 stop8h 27m
San Francisco
Mon 9/7
9:10 pm-6:02 am
Nonstop5h 52m
$368
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from Boston to Fremont
Have a flexible travel schedule? Discover the best time to fly to Fremont from Boston with our price prediction graph.
BOS-SFO
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 Boston to Fremont
BOS-FR8
BOS-SFO
What is the cheapest time of day to fly from BOS to FR8?
Find hourly flight availability from Boston to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 11, 2026.
It’s typically best to fly out from Boston to Fremont in the evening. Doing so could potentially save you 55% on the flight price compared to flying at noon, which is usually more expensive.
Weekly flight availability from Boston to Fremont
Explore weekly flight availability from Boston to Fremont. 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 August 11, 2026.
The most flights from BOS to FR8 are scheduled on a Monday (53 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from Boston to Fremont?
Airfare is below average for this route at the moment.
Boston to Fremont flights typically cost between $345 and $550 in August.The cheapest round-trip price found within the last 5 days was $282 on Frontier (Aug 22-Aug 29).
What is the cheapest day to fly from Boston to Fremont?
Use this chart to determine the cheapest time to fly round-trip from Boston to Fremont. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Boston to Fremont flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Fremont
Get insights into the airlines that provide service to Fremont. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Fremont. Reviews last updated August 11, 2026.
Read through reviews of airlines operating flights from Boston to Fremont, such as Alaska Airlines,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.0
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Entertainment
7.0
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Entertainment
7.0
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Entertainment
7.0
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Entertainment
7.0
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Entertainment
7.0
Food
7.0
Comfort
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Boston to Fremont. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Top 9 airlines flying from Boston to Fremont
Discover the top 9 airlines that operate flights from Boston to Fremont. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$259 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$131 | Average$250 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$138 | Average$349 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$149 | Average$377 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$157 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$207 | Average$345 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$230 | Average$428 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$236 | Average$424 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$256 | Average$451 | FlexibilityNo cancel fee | On-time71% |