Missed the deal?Become a Secret Flying member to receive alerts to your inbox the moment we publish a flight deal.
You'll never miss a Secret Flying deal again.
Cheap flights from San Francisco or Los Angeles to London, UK from only $420 roundtrip with TAP Air Portugal.
Depart from:
San Francisco: $420-$425
Los Angeles: $428-$432
DEPART:
San Francisco/Los Angeles, USA
ARRIVE:
London, UK
RETURN:
San Francisco/Los Angeles, USA
DATES:
Availability from January to March 2026
San Francisco – London: $420-$425
14th-21st Jan
16th-23rd Jan
21st-28th Jan
23rd-30th Jan
26th Jan – 2nd Feb
30th Jan – 6th Feb
31st Jan – 7th Feb
2nd-9th Feb
9th-16th Feb
18th-25th Feb
20th-27th Feb
25th Feb – 4th Mar
6th-13th Mar
11th-18th Mar
Los Angeles – London: $428-$432
15th-22nd Jan
20th-27th Jan
27th Jan – 3rd Feb
29th Jan – 5th Feb
5th-12th Feb
19th-26th Feb
5th-12th Mar
12th-19th Mar
and more…
STOPS:
Lisbon
AIRLINES:
TAP Air Portugal
[adblockingdetector id="638efa67113bf"]