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Cheap flights from San Francisco to Boston from $141

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 9/6. 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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Cheap round-trip flights

JetBlue Logo
11:29 pm - 1:17 pmSFO-ACK
10h 48m1 stop
JetBlue Logo
4:20 pm - 12:59 amACK-SFO
11h 39m1 stop
$262JetBlue
Find Deal
Tue, Sep 23 - Fri, Sep 26
American Airlines Logo
11:50 pm - 3:55 pmSFO-ACK
13h 05m2 stops
American Airlines Logo
1:41 pm - 9:33 pmACK-SFO
10h 52m2 stops
$287American Airlines
Find Deal
Tue, Aug 19 - Tue, Aug 26
Delta Logo
10:57 pm - 11:26 amSFO-ACK
9h 29m2 stops
Delta Logo
3:26 pm - 11:47 pmACK-SFO
11h 21m1 stop
$288Delta
Find Deal
Mon, Aug 25 - Wed, Aug 27
JetBlue Logo
9:00 pm - 11:00 amSFO-ACK
11h 00m1 stop
JetBlue Logo
4:20 pm - 11:42 pmACK-SFO
10h 22m1 stop
$309JetBlue
Find Deal
Sun, Sep 21 - Wed, Sep 24
Delta Logo
12:40 am - 2:46 pmSFO-ACK
11h 06m2 stops
Delta Logo
3:26 pm - 11:47 pmACK-SFO
11h 21m1 stop
$318Delta
Find Deal
Mon, Aug 18 - Tue, Aug 26
American Airlines Logo
11:08 pm - 4:36 pmSFO-ACK
14h 28m2 stops
American Airlines Logo
1:41 pm - 9:33 pmACK-SFO
10h 52m2 stops
$328American Airlines
Find Deal
Tue, Aug 19 - Tue, Aug 26
Delta Logo
12:40 am - 4:09 pmSFO-ACK
12h 29m2 stops
Delta Logo
3:26 pm - 11:47 pmACK-SFO
11h 21m1 stop
$333Delta
Find Deal
Mon, Aug 18 - Tue, Aug 26
American Airlines Logo
11:50 pm - 3:53 pmSFO-ACK
13h 03m2 stops
American Airlines Logo
2:10 pm - 10:52 pmACK-SFO
11h 42m2 stops
$343American Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
United Airlines Logo
4:38 pm - 9:55 amSFO-ACK
14h 17m2 stops
United Airlines Logo
5:30 pm - 11:17 pmACK-SFO
8h 47m1 stop
$642United Airlines
Find Deal
Sat, Aug 30 - Sat, Sep 6
United Airlines Logo
10:40 am - 9:55 amSFO-ACK
20h 15m2 stops
United Airlines Logo
5:30 pm - 11:17 pmACK-SFO
8h 47m1 stop
$659United Airlines
Find Deal
Sat, Aug 30 - Sat, Sep 6

American Airlines flights from San Francisco to Nantucket

Our best American Airlines deals on San Francisco to Nantucket flight tickets
American Airlines
Aug 19
SFO11:50 pmSan Francisco
13h 05m
2 stops
ACK3:55 pmNantucket Memorial
Aug 26
ACK1:41 pmNantucket Memorial
10h 52m
2 stops
SFO9:33 pmSan Francisco
$287
Find similar
American Airlines
Aug 19
SFO11:08 pmSan Francisco
14h 28m
2 stops
ACK4:36 pmNantucket Memorial
Aug 26
ACK1:41 pmNantucket Memorial
10h 52m
2 stops
SFO9:33 pmSan Francisco
$328
Find similar
American Airlines
Aug 23
SFO11:50 pmSan Francisco
13h 03m
2 stops
ACK3:53 pmNantucket Memorial
Aug 30
ACK2:10 pmNantucket Memorial
11h 42m
2 stops
SFO10:52 pmSan Francisco
$343
Find similar

JetBlue flights from San Francisco to Nantucket

Our best JetBlue deals on San Francisco to Nantucket flight tickets
JetBlue
Sep 23
SFO11:29 pmSan Francisco
10h 48m
1 stop
ACK1:17 pmNantucket Memorial
Sep 26
ACK4:20 pmNantucket Memorial
11h 39m
1 stop
SFO12:59 amSan Francisco
$262
Find similar
JetBlue
Sep 21
SFO9:00 pmSan Francisco
11h 00m
1 stop
ACK11:00 amNantucket Memorial
Sep 24
ACK4:20 pmNantucket Memorial
10h 22m
1 stop
SFO11:42 pmSan Francisco
$309
Find similar
JetBlue
Sep 26
SFO9:00 pmSan Francisco
11h 00m
1 stop
ACK11:00 amNantucket Memorial
Sep 30
ACK4:20 pmNantucket Memorial
10h 22m
1 stop
SFO11:42 pmSan Francisco
$349
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 July 31, 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

Tue 9/23

11:29 pm-1:17 pm

1 stop10h 48m

Nantucket Memorial

Fri 9/26

4:20 pm-12:59 am

1 stop11h 39m

$262

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Tue 8/19

11:50 pm-3:55 pm

2 stops13h 05m

Nantucket Memorial

Tue 8/26

1:41 pm-9:33 pm

2 stops10h 52m

$287

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Mon 8/25

10:57 pm-11:26 am

2 stops9h 29m

Nantucket Memorial

Wed 8/27

3:26 pm-11:47 pm

1 stop11h 21m

$288

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Sun 9/21

9:00 pm-11:00 am

1 stop11h 00m

Nantucket Memorial

Wed 9/24

4:20 pm-11:42 pm

1 stop10h 22m

$309

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Mon 8/18

12:40 am-2:46 pm

2 stops11h 06m

Nantucket Memorial

Tue 8/26

3:26 pm-11:47 pm

1 stop11h 21m

$318

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Tue 8/19

11:08 pm-4:36 pm

2 stops14h 28m

Nantucket Memorial

Tue 8/26

1:41 pm-9:33 pm

2 stops10h 52m

$328

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Mon 8/18

12:40 am-4:09 pm

2 stops12h 29m

Nantucket Memorial

Tue 8/26

3:26 pm-11:47 pm

1 stop11h 21m

$333

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Sat 8/23

11:50 pm-3:53 pm

2 stops13h 03m

Nantucket Memorial

Sat 8/30

2:10 pm-10:52 pm

2 stops11h 42m

$343

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Sat 8/30

4:38 pm-9:55 am

2 stops14h 17m

Nantucket Memorial

Sat 9/6

5:30 pm-11:17 pm

1 stop8h 47m

$642

San FranciscoNantucket

SFO - ACK

SFOACK

San Francisco

Sat 8/30

10:40 am-9:55 am

2 stops20h 15m

Nantucket Memorial

Sat 9/6

5:30 pm-11:17 pm

1 stop8h 47m

$659

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

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

Best Price Found

$141

Fastest flight time

7h 49m

Direct flights

None

Airports in Nantucket

1 airport
The best one-way flight to Nantucket from San Francisco in the past 72 hours is $141. The best round-trip flight deal from San Francisco to Nantucket found on momondo in the last 72 hours is $262.
The fastest flight from San Francisco to Nantucket takes 7h 49m
There are no direct flights from San Francisco to Nantucket. Popular non-direct route for this connection is San Francisco Airport - Nantucket Memorial Airport.
There is 1 airport near Nantucket: Nantucket Memorial (ACK)
Search flight deals

  • How far is San Francisco to Nantucket Memorial by plane?

    The distance between San Francisco and Nantucket Memorial is about 2753.8 mi. 7h 49m 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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