$377 Find Cheap Flights from San Francisco to Cambridge

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Cambridge departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$622
TAP AIR PORTUGAL
Thu 4/30Wed 5/13
SFO - LGW • 1 stop
Cheapest non-stop
$730
Typical prices: $692-$955
Air France
Wed 4/29Wed 5/6
SFO - LHR • Non-stop
Arrival airport
You can't fly directly to Cambridge. It is served by London (LON), located 49.3 miles from Cambridge.
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Flight Deals
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Flight Deals

Cheap Flights from San Francisco to Cambridge (SFO-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Cambridge 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Cambridge

Thu, Apr 30 - Wed, May 13
TAP AIR PORTUGAL Logo
7:55 pm - 9:45 am
SFO
-
LGW
29h 50m
1 stop
TAP AIR PORTUGAL Logo
9:15 pm - 4:35 pm
LGW
-
SFO
27h 20m
2 stops
$622TAP AIR PORTUGAL
Mon, Aug 24 - Tue, Sep 1
Scandinavian Airlines Logo
4:45 pm - 5:40 pm
SFO
-
LHR
16h 55m
1 stop
Scandinavian Airlines Logo
7:30 pm - 2:40 pm
LHR
-
SFO
27h 10m
1 stop
$624Scandinavian Airlines
Mon, Jun 15 - Sat, Jul 4
Virgin Atlantic Logo
11:15 pm - 5:30 pm
SFO
-
LHR
10h 15mnonstop
Virgin Atlantic Logo
8:05 pm - 10:44 am
LHR
-
SFO
22h 39m
1 stop
$625Virgin Atlantic
Sun, Aug 23 - Thu, Sep 3
Scandinavian Airlines Logo
4:45 pm - 6:30 pm
SFO
-
LHR
17h 45m
1 stop
Scandinavian Airlines Logo
6:40 am - 2:40 pm
LHR
-
SFO
16h 00m
1 stop
$626Scandinavian Airlines
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
7:35 pm - 11:15 pm
SFO
-
LTN
19h 40m
2 stops
Multiple Airlines Logo
7:20 pm - 4:15 pm
LTN
-
SFO
28h 55m
2 stops
$641Multiple Airlines
Mon, Mar 30 - Tue, Apr 7
Multiple Airlines Logo
12:55 pm - 10:50 pm
SFO
-
LTN
25h 55m
2 stops
Multiple Airlines Logo
1:10 pm - 4:40 pm
LTN
-
SFO
35h 30m
2 stops
$645Multiple Airlines
Tue, Aug 18 - Tue, Aug 25
SWISS Logo
7:35 pm - 5:25 pm
SFO
-
LCY
13h 50m
1 stop
SWISS Logo
9:15 am - 4:15 pm
LCY
-
SFO
15h 00m
1 stop
$741SWISS
Wed, Apr 29 - Wed, May 6
SWISS Logo
7:35 pm - 5:25 pm
SFO
-
LCY
13h 50m
1 stop
SWISS Logo
9:15 am - 4:15 pm
LCY
-
SFO
15h 00m
1 stop
$752SWISS
Tue, Apr 28 - Tue, May 12
Lufthansa Logo
2:40 pm - 5:55 pm
SFO
-
LCY
19h 15m
1 stop
Lufthansa Logo
9:15 am - 12:50 am
LCY
-
SFO
23h 35m
2 stops
$770Lufthansa
Tue, Apr 14 - Tue, Apr 21
Virgin Atlantic Logo
1:45 pm - 4:40 pm
SFO
-
LCY
18h 55m
1 stop
Virgin Atlantic Logo
5:10 pm - 11:45 am
LCY
-
SFO
26h 35m
1 stop
$784Virgin Atlantic
Useful Info

Good to know

Cheapest flight$377
Flight from San Francisco to London Stansted Airport

When to book flights from San Francisco to Cambridge

Are your dates flexible? Find out the best times to travel from San Francisco to Cambridge based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from San Francisco to Cambridge: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from San Francisco to Cambridge 
Verified travelerFlew with British Airways
SFO
-
LHR
Dec 2025
If not getting off in London make sure you have enough time to get to your connecting gates
Verified travelerFlew with Iberia
SFO
-
LHR
Jan 2026
Buy your flight directly from the airline because the cancellation process is purgatory
GeraldFlew with Virgin Atlantic
SFO
-
LHR
Jun 2025
Virgin Atlantic uses terminal 3. Much faster clearing customs than terminal 5
Verified travelerFlew with American Airlines
SFO
-
LHR
Jun 2025
Large number of passengers on the flight so arrive early to the airport and to the boarding gate
PallaviFlew with British Airways
SFO
-
LHR
Apr 2025
Eat at the lounge first so you are not stuck eating overcooked cheese ravioli
TapanFlew with British Airways
SFO
-
LHR
Oct 2024
Great baggage policy in BA.. The worst part was experience at London Heathrow airport. Security was slow, too many people. Almost lost connecting flight even with 2 hours layover.

FAQs for booking flights from San Francisco to Cambridge

  • Which airports will I be using when flying from San Francisco to Cambridge?

    When flying out of San Francisco you’ll be using San Francisco. Cambridge does not have its own airport so you’ll be flying into nearby London All airports airport, which is 49.3 mi away.

  • What’s the cheapest day of the week to fly between San Francisco and Cambridge?

    Consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to San Francisco, you’ll find the best rates on Fridays and the most expensive ones on Thursdays.

  • How does KAYAK find such low prices on flights from San Francisco to Cambridge?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Cambridge.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Cambridge?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cambridge from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Cambridge?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cambridge with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Cambridge?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cambridge from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from San Francisco to Cambridge?

    In the last 72 hours, the cheapest one-way ticket between San Francisco and Cambridge found on KAYAK was with JetBlue for $185. JetBlue offered a round-trip connection from $151 and TAP AIR PORTUGAL from $373.

Top tips for finding cheap flights from San Francisco to Cambridge

  • There is no airport in Cambridge. Instead, you’ll be flying into London All airports when flying between San Francisco and Cambridge.
  • The cheapest flight from San Francisco to Cambridge was found 57 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is February.

Reviews of the top 5 airlines serving San Francisco to Cambridge

 
Need help choosing which airline to fly with from San Francisco to Cambridge? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8306 reviews
8.1Boarding
7.9Comfort
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

2.0 MediocreAnonymous, Mar 2026
LAX - BNA
Read more Delta reviews

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

it was a very short flight so my expectations were low.

Entertainment kept turning itself off. Gave up on watching a movie.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

The flight crew where really good. Better then the crew from BNE to SFO

Flight was fine - however my husband's checked in case was damaged, and mine still has not arrived

Awful. They didn't even show concern that her connecting flight( Dallas to Mardrid) was gone/missing. I don't understand how that is even possible. Rudest answer from one of the crew was that American Airlines sold the tickets to somebody else. My daughter was not in the list.

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

The boarding procedure got confusing because they wanted to weigh everyone’s carry-on. Apparently mine was 3 1/2 kg over their limit. I didn’t know they had a limit. And at the check-in desk, nothing was said about this. They wanted me to check the carry-on at no charge and that would have been fine except then they told me at my connection in London I would have to go outside to baggage claim retrieve my bag, and then recheck it. In other words, they could not check it to my final destination, only to London. I told him this was unacceptable so after a few minutes of discussion, they came back and said that my bag would be OK to carry on the plane. It seems that if you have a connection then the weight is not as important. Then when I actually went to board the boarding agent said I needed a tag indicating that my bag had been weighed, even though she had just five minutes ago talked to the same person who cleared me. Lots of confusion seems like a very bad process. They need to improve this.

My flight being automatically moved messed up my travel plans, and I had to quickly find an alternative mode of transportation. I couldn’t get a refund from any of the companies involved. Kayak, Ibiza, or Vueling. I am still unsure of how to settle my concern.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

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

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