
$121 Cheap flight deals from San Francisco (SJC) to Chelmsford (BOS)
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This Weekend's Flight Deals from San Francisco to Chelmsford
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $121 One Way, $254 Round Trip from San Francisco to Chelmsford
Prices starting at $254 for return flights and $121 for one-way flights to Chelmsford were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Chelmsford economy flight packages

The Langham, Boston
May 22 - May 25
San Francisco (SFO) to Boston (BOS)
Boston (BOS) to San Francisco (SFO)
Reviewed on Jan 12, 2026

Mandarin Oriental, Boston
May 22 - May 25
San Francisco (SFO) to Boston (BOS)
Boston (BOS) to San Francisco (SFO)
Reviewed on Oct 19, 2025

XV Beacon
May 22 - May 25
San Francisco (SFO) to Boston (BOS)
Boston (BOS) to San Francisco (SFO)
Reviewed on Jun 30, 2024
Chelmsford first class flight packages

Eurostars The Boxer
May 27 - May 29
San Jose (SJC) to Boston (BOS)
Reviewed on Apr 14, 2026

Fairmont Copley Plaza, Boston
May 27 - May 29
San Jose (SJC) to Boston (BOS)
Reviewed on Mar 28, 2026

Omni Parker House
May 27 - May 29
San Jose (SJC) to Boston (BOS)
Reviewed on Mar 13, 2026
More About Flying To Chelmsford from San Francisco
Route Information for Flights from San Francisco to Chelmsford
Origin Airport IATA Code | SJC |
|---|---|
Destination Airport IATA Code | BOS |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
San Francisco to Chelmsford
If you are looking online for bargain San Francisco to Chelmsford flights, Orbitz is your ideal destination. We understand that vacations can be expensive and offer guaranteed low prices on our domestic and international tickets.
Orbitz Uses Cutting-Edge Mobile Tools
Orbitz may offer low cost San Francisco to Chelmsford flights but this does not mean that we skimp on giving you the latest mobile apps. You don’t have to worry about checking your flight status as we send the info for your flights from San Francisco to Chelmsford directly to your smartphone.
Fly Cheap and Earn Miles on Your San Francisco to Chelmsford Flights
Frequent flyer miles and points are great—and even better when you earn them on cheap flights from San Francisco to Chelmsford. With Orbitz, you can earn miles for your frequent flyer program on qualified flights. Enter your frequent flyer number when you book with us to get rewarded for your flight.
Orbitz Takes the Hassle Out Of Flying
We know that flying can be stressful, particularly if you are traveling with young children. That’s why we make sure you are aware of any changes or delays to your flights from San Francisco to Chelmsford via your phone or email address. We can even inform family members too.
Orbitz Flights Fit Around Your Lifestyle
Orbitz understands that you don’t necessarily want to fly at 5:00 a.m—and that sometimes you do. This is why we allow you to find the best San Francisco to Chelmsford flights at the times you want with ease.
Flights from San Francisco
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Chelmsford Airports
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.





