Cheap flights from San Francisco to Boston

San Francisco
SFO
Logan
BOS

Flight deals from San Francisco to Boston

Below you can see the best deals on flights San Francisco — Boston for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 21 September, from $99.

Top 10 cheap flights from San Francisco to Boston

F9
F9
$ 94

San Francisco — Boston

22:35—11:47
31 Aug 2026
10 h 12 m
1 stop
F9
F9
$ 96

San Francisco — Boston

22:35—11:47
1 Sep 2026
10 h 12 m
1 stop
DL
DL
$ 123

San Jose — Boston

13:46—23:57
1 Sep 2026
7 h 11 m
1 stop
DL
DL
$ 123

San Jose — Boston

06:00—16:39
1 Sep 2026
7 h 39 m
1 stop
DL
DL
$ 123

San Jose — Boston

06:40—18:10
1 Sep 2026
8 h 30 m
1 stop
DL
DL
$ 123

San Jose — Boston

06:40—19:35
1 Sep 2026
9 h 55 m
1 stop
DL
DL
$ 123

San Jose — Boston

11:41—23:51
11 Sep 2026
9 h 10 m
1 stop
DL
DL
$ 123

San Jose — Boston

17:13—06:30
11 Sep 2026
10 h 17 m
1 stop
DL
DL
$ 123

San Jose — Boston

09:52—23:51
11 Sep 2026
10 h 59 m
1 stop
DL
DL
$ 123

San Jose — Boston

18:19—05:33
12 Sep 2026
8 h 14 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the San Francisco — Boston flight

Looking for cheap flights from San Francisco to Boston? Compare fares from different airlines, check the flight schedule and travel time — and book your San Francisco — Boston ticket online at the best price.

The route has direct flights — around 249 flights per week, flights are operated by JetBlue, United Airlines, Delta, Hawaiian Airlines and 4 more airlines, a nonstop flight takes about 5 h 35 min, the distance between the cities is around 4,345 km.

Planning your trip? You may find our Boston travel guide, how to get from the airport into town and Boston weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $99Min. price
SeptemberCheapest
AugustPeak season
YesDirect flights
4,345 kmDistance
5 h 35 minTravel time
8Airlines
249 / wkFlights

Flight schedule from San Francisco to Boston

The table shows direct flights from San Francisco to Boston on the selected date. The flight takes approximately 5 h 35 min. Regular flights are operated by JetBlue, United Airlines, Delta and Hawaiian Airlines. Departures from San Francisco International Airport airports, arrivals at Logan International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 14 Aug 2026

Flight ticket prices by day: San Francisco — Boston

Below is a calendar of the lowest flight ticket prices for San Francisco — Boston by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $99 in September, and the most expensive are around $152 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from San Francisco to Boston by month. Tickets are usually cheapest in May (around $265) and priciest in June (about $357) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$270lowMay$265lowSep$272low
Feb$276lowJun$357highOct$292medium
Mar$299mediumJul$344highNov$305medium
Apr$311mediumAug$321mediumDec$334high

Some values are estimated based on seasonality.

When to fly

Weather in Boston: it is warmest in July (up to 28 °C on average) and coolest in January (around 3 °C). The driest month is September.

Tickets are usually cheapest in September and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Boston

Dry and wet days · Boston

Wind speed and direction · Boston

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How to get the best deal on a San Francisco — Boston ticket

  • Book ahead: fares for San Francisco — Boston are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Boston is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the San Francisco — Boston route are operated by 8 airlines; JetBlue runs the most flights (around 43% of all flights). Compare carriers, flight shares and schedules below.

  • JetBlueB6
    36x/week
    WebsiteFleet: 30742.5M pax/year
    • Direct flight SFO → BOS36x/week
      Duration
      5h 45m
      Days
      MTWTFSS
    43.4%Open →
  • United AirlinesUA
    14x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight SFO → BOS14x/week
      Duration
      5h 53m
      Days
      MTWTFSS
    17.3%Open →
  • DeltaDL
    11x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight SFO → BOS11x/week
      Duration
      5h 44m
      Days
      MTWTFSS
    13.3%Open →
  • Hawaiian AirlinesHA
    7x/week
    WebsiteFleet: 7511M pax/year
    • Direct flight SFO → BOS7x/week
    8.4%
  • Alaska AirlinesAS
    7x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight SFO → BOS7x/week
    8.4%Open →
  • American AirlinesAA
    7x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight SFO → BOS7x/week
    8.0%Open →
  • Qatar AirwaysQR
    1x/week
    WebsiteFleet: 26640M pax/year
    • Direct flight SFO → BOS1x/week
    0.8%Open →
  • Latam Airlines GroupLA
    1x/week
    WebsiteFleet: 34782M pax/year
    • Direct flight SFO → BOS1x/week
    0.4%Open →

Cities and airports on the San Francisco — Boston route

Flights San Francisco — Boston depart from San Francisco International Airport and arrive at Logan International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

San Francisco

SFO
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Boston

BOS
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the San Francisco — Boston flight

How long is the flight from San Francisco to Boston?

A nonstop San Francisco — Boston flight takes about 5 h 35 min — the distance between the cities is around 4,345 km.

How far is it from San Francisco to Boston?

The distance from San Francisco to Boston is about 4,345 km, which a nonstop flight covers in around 5 h 35 min.

Are there direct flights from San Francisco to Boston?

Yes, there are nonstop flights San Francisco — Boston — around 249 flights per week.

Which airlines fly from San Francisco to Boston?

Airlines operating San Francisco — Boston include JetBlue, United Airlines, Delta, Hawaiian Airlines, Alaska Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do San Francisco — Boston flights use?

Flights from San Francisco depart from San Francisco International Airport, and arrive at Logan International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from San Francisco to Boston?

The price of a San Francisco — Boston ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in August. Tickets typically cost between $99 and $152. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights San Francisco — Boston?

Flights San Francisco — Boston are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from San Francisco to Boston?

To catch a low fare San Francisco — Boston, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from San Francisco

See all
Los AngelesNew York CitySeattleSan DiegoSanta AnaLas VegasBurbankVancouverPhoenixPortlandLondonDenverPalm SpringsHonoluluDallasChicagoSalt Lake CityAustinAtlantaWashington, D.C.HoustonKahuluiTaipeiMinneapolisTorontoDetroitOrlandoSpokaneTokyoParisBoiseKapaaSan Jose del CaboPuerto VallartaRedmondSeoulFrankfurt am MainCalgaryMexico CityKailua-Kona

Where else you can fly from Boston

See all
New York CityWashington, D.C.ChicagoTorontoAtlantaSeattleLos AngelesPhiladelphiaNantucketLondonDallasOrlandoDenverFort LauderdaleDetroitCharlotteRaleighMontrealNashvilleMarthas VineyardMiamiMinneapolisBuffaloSan DiegoPhoenixMadridTampaPittsburghClevelandBarcelonaIndianapolisSan JuanDublinHoustonParisLas VegasAustinRichmondCincinnatiAmsterdam

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