How far in advance should I book tickets for a flight with Delta from Boston to San Francisco?

Generally, when trying to get a below average price for your ticket, try to book around 14 days before departure. For the cheapest possible price, our data suggests booking 133 days before departure.

Is Delta the cheapest airline to fly with from Boston to San Francisco?

With an average price of $362 return, Delta is not the cheapest airline to fly from Boston to San Francisco with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $147 on average.

What is the cheapest Delta flight from Boston to San Francisco?

In the last 3 days, the lowest price for a flight with Delta from Boston to San Francisco was $215 for a return flight and $114 for a one-way flight.

Does Delta fly direct to San Francisco from Boston?

Yes, Delta does offer direct flights for the route, with around 4 flights per week.

What’s the cheapest day of the week to fly from Boston to San Francisco with Delta?

On average, the cheapest day of the week to fly from Boston to San Francisco with Delta is Tuesday, when prices are around $98. The most expensive day is generally Saturday, where the average price is around $135.

What’s the cheapest month to fly from Boston to San Francisco with Delta?

The cheapest month for Delta flights to San Francisco from Boston is generally September, where plane tickets cost $174 on average. If possible, try to avoid the most expensive months of July and December, where tickets cost $255 and $308 respectively.

$114 Cheap Delta Flights from Boston to San Francisco

BOS - SFO

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Cheap Delta Flight Deals from Boston to San Francisco

Here are some of the best deals found on KAYAK recently from Delta for round-trip flights from Boston to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Direct

Recent round-trip Delta flight deals from Boston to San Francisco

Recommended round-trip Delta deals departing in the coming months from the most popular airlines that fly from Boston to San Francisco.

Discover the best prices and deals for you by selecting your travel dates.

Choose your dates

5:50 pm - 9:56 pmBOS-SFO

7h 06mnonstop

1:15 pm - 9:54 pmSFO-BOS

5h 39mnonstop

$227Delta

Find Deal

Thu, Jan 23 - Tue, Feb 4

5:50 pm - 9:56 pmBOS-SFO

7h 06mnonstop

1:15 pm - 9:54 pmSFO-BOS

5h 39mnonstop

$229Delta

Find Deal

Tue, Jan 21 - Tue, Jan 28

5:50 pm - 9:56 pmBOS-SFO

7h 06mnonstop

1:15 pm - 9:54 pmSFO-BOS

5h 39mnonstop

$242Delta

Find Deal

Sat, Jan 18 - Wed, Jan 29

7:40 am - 11:49 amBOS-SFO

7h 09mnonstop

1:15 pm - 9:54 pmSFO-BOS

5h 39mnonstop

$243Delta

Find Deal

Wed, Jan 15 - Wed, Jan 22

5:50 pm - 9:56 pmBOS-SFO

7h 06mnonstop

1:15 pm - 9:54 pmSFO-BOS

5h 39mnonstop

$244Delta

Find Deal

Fri, Jan 17 - Tue, Jan 21

7:50 am - 11:59 amBOS-SFO

7h 09mnonstop

1:00 pm - 9:33 pmSFO-BOS

5h 33mnonstop

$248Delta

Find Deal

Thu, Mar 6 - Tue, Mar 11

7:50 am - 11:59 amBOS-SFO

7h 09mnonstop

7:30 am - 4:10 pmSFO-BOS

5h 40mnonstop

$250Delta

Find Deal

Thu, Feb 27 - Sat, Mar 1

7:50 am - 11:59 amBOS-SFO

7h 09mnonstop

7:30 am - 4:10 pmSFO-BOS

5h 40mnonstop

$258Delta

Find Deal

Thu, Jan 16 - Tue, Jan 21

5:50 pm - 9:56 pmBOS-SFO

7h 06mnonstop

4:37 pm - 6:55 amSFO-BOS

11h 18m1 stop

$265Delta

Find Deal

Wed, Jan 29 - Sun, Feb 2

7:50 am - 11:59 amBOS-SFO

7h 09mnonstop

7:30 am - 4:10 pmSFO-BOS

5h 40mnonstop

$269Delta

Find Deal

Thu, Feb 27 - Sun, Mar 2

Low season	September
High season	December
Cheapest flight	$114
Average price round-trip	$1,355
Good deal round-trip	$749
Good deal one-way	$714

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly with an average 20% increase in price.

Flight from Boston to San Francisco

(avg. price over the last 2 weeks)

or less

When to Book Flights with Delta from Boston to San Francisco

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with Delta from Boston to San Francisco?
Generally, when trying to get a below average price for your ticket, try to book around 14 days before departure. For the cheapest possible price, our data suggests booking 133 days before departure.
Is Delta the cheapest airline to fly with from Boston to San Francisco?
With an average price of $362 return, Delta is not the cheapest airline to fly from Boston to San Francisco with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $147 on average.
What is the cheapest Delta flight from Boston to San Francisco?
In the last 3 days, the lowest price for a flight with Delta from Boston to San Francisco was $215 for a return flight and $114 for a one-way flight.
Does Delta fly direct to San Francisco from Boston?
Yes, Delta does offer direct flights for the route, with around 4 flights per week.
What’s the cheapest day of the week to fly from Boston to San Francisco with Delta?
On average, the cheapest day of the week to fly from Boston to San Francisco with Delta is Tuesday, when prices are around $98. The most expensive day is generally Saturday, where the average price is around $135.
What’s the cheapest month to fly from Boston to San Francisco with Delta?
The cheapest month for Delta flights to San Francisco from Boston is generally September, where plane tickets cost $174 on average. If possible, try to avoid the most expensive months of July and December, where tickets cost $255 and $308 respectively.

See more FAQs

8.0

Very goodBased on 8,537 verified guest reviews

7.9Entertainment

8.0Comfort

8.6Crew

7.3Food

8.2Boarding

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Cons -

Show reviews that mention

8.0 Very good

Victor, Jan 2025

CDG-SLC

Great list of movies, seat was generally comfortable, but not much shoulder room. The fresh baked cookie mostly made up for the lack of variety with the meals, which were all tomato based.

10.0 Wonderful

Michael, Dec 2024

CDC-SLC

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

10.0 Wonderful

Daran, Dec 2024

PNS-ATL

Not flown through Atlanta

10.0 Wonderful

Verified traveler, Dec 2024

SFO-ATL

Safe and sound flight with a wonderful crew!

10.0 Wonderful

TJ, Dec 2024

MCO-SLC

A better food selection.

2.0 Poor

Travis, Dec 2024

MSP-DTW

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

8.0 Very good

James, Dec 2024

DCA-BOS

Excellent crew

8.0 Very good

Lavenia, Dec 2024

ATL-SEA

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

10.0 Wonderful

Joe, Dec 2024

RSW-BOS

Newer plane, relatively easy boarding, not a full flight and was told that we could not be moved up because of weight and balance issues. Otherwise, a very good experience.

10.0 Wonderful

Christopher, Dec 2024

SEA-SFO

Very good service.

Everything you need to know for your flight from Boston to San Francisco

BOS - SFO

$114 Find Cheap Delta Flights from Boston to San Francisco

Search hundreds of travel sites at once for deals on Delta flights from Boston to San Francisco

Cheap Delta Flight Deals from Boston to San Francisco

Recent round-trip Delta flight deals from Boston to San Francisco

Recent one-way Delta flight deals from Boston to San Francisco

Recent last minute Delta flight deals from Boston to San Francisco

Recent direct Delta flight deals from Boston to San Francisco

Good to know

Low season

High season

Cheapest flight

Average price round-trip

Good deal round-trip

Good deal one-way

When to Book Flights with Delta from Boston to San Francisco

FAQs for flying to San Francisco with Delta

How far in advance should I book tickets for a flight with Delta from Boston to San Francisco?

Is Delta the cheapest airline to fly with from Boston to San Francisco?

What is the cheapest Delta flight from Boston to San Francisco?

Does Delta fly direct to San Francisco from Boston?

What’s the cheapest day of the week to fly from Boston to San Francisco with Delta?

What’s the cheapest month to fly from Boston to San Francisco with Delta?

Delta Customer Reviews

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Everything you need to know for your flight from Boston to San Francisco

Other airlines flying from Boston to San Francisco

Flight deals from the most popular airlines with KAYAK users flying the route

Cabin class types available on flights to San Francisco

Cabin classes available on flights to Boston. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to San Francisco with a hotel stay or car rental

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The most popular destinations for flights with Delta according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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