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Cheap flights from San Francisco to Boston from $140

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Boston departing on 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

JetBlue Logo
9:35 pm - 12:25 pmSFO-ACK
11h 50m2 stops
JetBlue Logo
6:49 am - 2:19 pmACK-SFO
10h 30m1 stop
$949JetBlue
Find Deal
Fri, Mar 13 - Sun, Mar 15
JetBlue Logo
7:55 am - 8:40 pmSFO-ACK
9h 45m1 stop
JetBlue Logo
6:49 am - 2:19 pmACK-SFO
10h 30m1 stop
$1,044JetBlue
Find Deal
Fri, Mar 13 - Sun, Mar 15
JetBlue Logo
10:00 pm - 9:09 amSFO-ACK
8h 09m1 stop
JetBlue Logo
6:00 pm - 9:25 amACK-SFO
18h 25m2 stops
$1,100JetBlue
Find Deal
Fri, Oct 24 - Sun, Oct 26
Multiple Airlines Logo
5:45 pm - 12:25 pmSFO-ACK
15h 40m2 stops
Multiple Airlines Logo
2:45 pm - 11:40 pmACK-SFO
11h 55m2 stops
$1,103Multiple Airlines
Find Deal
Fri, Mar 13 - Sun, Mar 15
JetBlue Logo
10:00 pm - 9:09 amSFO-ACK
8h 09m1 stop
JetBlue Logo
6:00 pm - 11:59 pmACK-SFO
8h 59m1 stop
$1,145JetBlue
Find Deal
Fri, Oct 24 - Sun, Oct 26

JetBlue flights from San Francisco to Nantucket

Our best JetBlue deals on San Francisco to Nantucket flight tickets
JetBlue
Mar 13
SFO9:35 pmSan Francisco
11h 50m
2 stops
ACK12:25 pmNantucket Memorial
Mar 15
ACK6:49 amNantucket Memorial
10h 30m
1 stop
SFO2:19 pmSan Francisco
$949
Find similar
JetBlue
Mar 13
SFO7:55 amSan Francisco
9h 45m
1 stop
ACK8:40 pmNantucket Memorial
Mar 15
ACK6:49 amNantucket Memorial
10h 30m
1 stop
SFO2:19 pmSan Francisco
$1,044
Find similar
JetBlue
Oct 24
SFO10:00 pmSan Francisco
8h 09m
1 stop
ACK9:09 amNantucket Memorial
Oct 26
ACK6:00 pmNantucket Memorial
18h 25m
2 stops
SFO9:25 amSan Francisco
$1,100
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Nantucket 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from San Francisco to Nantucket that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Fri 3/13

9:35 pm-12:25 pm

2 stops11h 50m

Nantucket Memorial

Sun 3/15

6:49 am-2:19 pm

1 stop10h 30m

$949

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Fri 3/13

7:55 am-8:40 pm

1 stop9h 45m

Nantucket Memorial

Sun 3/15

6:49 am-2:19 pm

1 stop10h 30m

$1,044

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Fri 10/24

10:00 pm-9:09 am

1 stop8h 09m

Nantucket Memorial

Sun 10/26

6:00 pm-9:25 am

2 stops18h 25m

$1,100

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Fri 3/13

5:45 pm-12:25 pm

2 stops15h 40m

Nantucket Memorial

Sun 3/15

2:45 pm-11:40 pm

2 stops11h 55m

$1,103

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Fri 10/24

10:00 pm-9:09 am

1 stop8h 09m

Nantucket Memorial

Sun 10/26

6:00 pm-11:59 pm

1 stop8h 59m

$1,145

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Mon 10/6

11:25 pm-1:15 pm

1 stop10h 50m

$140

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Sun 10/12

11:25 pm-11:00 am

1 stop8h 35m

$218

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Mon 10/6

5:34 pm-3:05 pm

3 stops18h 31m

$456

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Sun 10/12

8:27 pm-2:01 pm

3 stops38h 34m

$457

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Mon 10/6

5:57 pm-3:05 pm

2 stops18h 08m

$499

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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How to get the cheapest flight ticket from San Francisco to Nantucket

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Nantucket?

The cheapest day to depart on your flight to Nantucket is on a Saturday when prices can be found for as low as $591. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,066.

What is the cheapest time of day to depart on your flight to Nantucket?

In the evening is the cheapest time of day to fly from San Francisco to Nantucket when you can find flight prices for as low as $607. Flying to Nantucket in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $823 on average. Flights to Nantucket from San Francisco in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from San Francisco to Nantucket

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Nantucket according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Nantucket (SFO to ACK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Nantucket

Direct flights

None
There are no direct flights from San Francisco to Nantucket. There are no popular flight routes from San Francisco to Nantucket.
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  • How far is San Francisco to Nantucket Memorial by plane?

    The distance between San Francisco and Nantucket Memorial is about 2753.8 mi. 8h 09m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Francisco Airport to Nantucket Memorial Airport?

    Prices for flights from San Francisco Airport to Nantucket Memorial Airport refresh daily.

  • How many operators does momondo search for flights from San Francisco Airport to Nantucket Memorial Airport?

  • How old do you have to be to fly from San Francisco Airport to Nantucket Memorial Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Nantucket Memorial Airport.

  • What documentation or ID do you need to fly to Nantucket Memorial Airport?

    The required travel and health documents for your Nantucket Memorial Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Nantucket Memorial Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Francisco to Nantucket?

Best airlines flying from San Francisco to Nantucket

Compare and see reviews for airlines that fly from San Francisco to Nantucket with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $309Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Nantucket?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco to Nantucket for you.

Can I find flights from San Francisco to Nantucket with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Nantucket from San Francisco with this policy.

How can momondo help me find flights from San Francisco to Nantucket?

Once all potential San Francisco to Nantucket flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Francisco to Nantucket right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Francisco to Nantucket flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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