TP - London (LHR) to San Francisco (SFO) - $323 roundtrip - https://www.google.com/travel/flight...bxHhZDqGo4GQh7

D7 - Federal Territory of Kuala Lumpur (KUL) to Gold Coast (OOL) - $238 roundtrip - https://www.google.com/travel/flight...gnaWcowz3x6UJ9

TP - Tel Aviv (TLV) to Miami (MIA) - $419 roundtrip - https://www.google.com/travel/flight...VT1A2DKGhKoVRA

SK - Stockholm (ARN) to San Francisco (SFO) - $356 roundtrip - https://www.google.com/travel/flight...vHXrnKZBLo7pL8

SK - Oslo (OSL) to San Francisco (SFO) - $345 roundtrip - https://www.google.com/travel/flight...yZf2X2jF1bjbB6

TP - San Francisco (SFO) to Barcelona (BCN) - $396 roundtrip - https://www.google.com/travel/flight...6bhT7Nabc37uX8

TP - San Francisco (SFO) to Milan (MXP) - $396 roundtrip - https://www.google.com/travel/flight...FNdhPFopUr3BY6

EDIT
A few more big drops

LX/WK - Krakow (KRK) to Tenerife (TFS) - $158 roundtrip - https://www.google.com/travel/flight...s8KAcLzYnzwrR6

TP - Berlin (BER) to Tenerife (TFS) - $162 roundtrip - https://www.google.com/travel/flight...1iRdnSRtgeQYT8

LH - Helsinki (HEL) to Cape Town (CPT) - $493 roundtrip - https://www.google.com/travel/flight...Zutx7n5um9LjLA

AV - Sao Paulo (GRU) to LAX - $462 roundtrip - https://www.google.com/travel/flight...Dfzcx1K9sHQkW7

LH - Riga (RIX) to Cape Town (CPT) - $479 roundtrip - https://www.google.com/travel/flight...Qw3Sffs3rBboF8

And a few domestic US flights
AA - Burlington, Vermont (BTV) to San Francisco (SFO) - $202 roundtrip - https://www.google.com/travel/flight...mKuWogTiGpZiw9

AA - New York (LGA) to Burbank, California (BUR) - $199 roundtrip - https://www.google.com/travel/flight...wCh4qs6KFHSEt5