Find Deals on International Flights from San Francisco

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from San Francisco to worldwide

(Round-trip)
Depart: Wed Aug 2 2017 Return: Tue Aug 22 2017 Trip spans 21 days
Multiple Airlines
Multiple Airlines
SFO
BOS
5h 27m
nonstop
BOS
SFO
6h 39m
nonstop
Depart: Thu Aug 10 2017 Return: Thu Aug 17 2017 Trip spans 8 days
United
United
SFO
BOS
5h 29m
nonstop
BOS
SFO
6h 24m
nonstop
Depart: Mon Aug 21 2017 Return: Mon Aug 28 2017 Trip spans 8 days
Virgin America
Virgin America
SFO
BOS
5h 50m
nonstop
BOS
SFO
6h 27m
nonstop
Depart: Tue Oct 3 2017 Return: Wed Oct 4 2017 Trip spans 2 days
American Airlines
American Airlines
SFO
BOS
8h 41m
1 stop
BOS
SFO
9h 11m
1 stop
Depart: Tue Dec 5 2017 Return: Tue Dec 12 2017 Trip spans 8 days
Alaska Airlines
Alaska Airlines
SFO
BOS
16h 13m
1 stop
BOS
SFO
16h 38m
1 stop
Depart: Wed Sep 6 2017 Return: Wed Sep 13 2017 Trip spans 8 days
Delta
Delta
SFO
BOS
7h 25m
1 stop
BOS
SFO
8h 19m
1 stop
Depart: Mon Jul 31 2017 Return: Tue Sep 12 2017 Trip spans 44 days
WOW air
WOW air
SFO
CDG
13h 30m
1 stop
CDG
SFO
16h 55m
1 stop
Depart: Mon Sep 18 2017 Return: Sat Sep 23 2017 Trip spans 6 days
XL Airways France
XL Airways France
SFO
CDG
10h 45m
nonstop
CDG
SFO
11h 30m
nonstop
Depart: Thu Oct 12 2017 Return: Sat Oct 21 2017 Trip spans 10 days
British Airways
British Airways
SFO
AMS
14h 00m
1 stop
AMS
SFO
14h 55m
1 stop
Depart: Thu Jul 27 2017 Return: Sun Jul 30 2017 Trip spans 4 days
Frontier
Frontier
SFO
DCA
9h 34m
1 stop
DCA
SFO
23h 16m
1 stop
Depart: Wed Oct 11 2017 Return: Sun Oct 29 2017 Trip spans 19 days
KLM
KLM
SFO
AMS
16h 25m
1 stop
AMS
SFO
11h 00m
nonstop
Depart: Sun Aug 6 2017 Return: Sat Aug 12 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
SFO
BOS
5h 50m
nonstop
BOS
SFO
6h 10m
nonstop
Depart: Sat Aug 12 2017 Return: Fri Aug 18 2017 Trip spans 7 days
United
United
SFO
BOS
5h 26m
nonstop
BOS
SFO
6h 12m
nonstop
Depart: Thu Sep 28 2017 Return: Thu Oct 5 2017 Trip spans 8 days
Air France
Air France
SFO
CDG
10h 40m
nonstop
CDG
SFO
11h 25m
nonstop
Depart: Mon Oct 30 2017 Return: Fri Nov 10 2017 Trip spans 12 days
airberlin
airberlin
SFO
BCN
15h 10m
1 stop
BCN
SFO
34h 00m
1 stop
Depart: Tue Sep 26 2017 Return: Tue Oct 3 2017 Trip spans 8 days
Turkish Airlines
Turkish Airlines
SFO
BCN
19h 55m
1 stop
BCN
SFO
30h 35m
1 stop
Depart: Mon Oct 16 2017 Return: Tue Oct 17 2017 Trip spans 2 days
American Airlines
American Airlines
SFO
BOS
8h 43m
1 stop
BOS
SFO
9h 10m
1 stop
Depart: Wed Aug 23 2017 Return: Sun Aug 27 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
SFO
DCA
16h 04m
1 stop
DCA
SFO
7h 40m
1 stop
Depart: Mon Oct 2 2017 Return: Fri Oct 13 2017 Trip spans 12 days
Delta
Delta
SFO
BOS
7h 23m
1 stop
BOS
SFO
8h 30m
1 stop
Depart: Sun Nov 12 2017 Return: Thu Nov 23 2017 Trip spans 12 days
Virgin America
Virgin America
SFO
BOS
5h 33m
nonstop
BOS
SFO
6h 42m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

San Francisco
$297
Destination

Amsterdam
$448
Barcelona
$609
Washington
$308
Paris
$400
Boston
$297