The cheapest flights to Quito from San Francisco are still just under $600 (and have been this way for the last year).
Flights Between 400 - 800 Dollars from San Francisco
Right now, British Airways is offering the cheapest flights to Portugal. Their flights have a layover in London, Heathrow.
If you’re looking to book a flight to Bangkok any time soon, flights in November may be your last chance. Starting in the early December flight prices start getting up into the $1000 range.
$800 for a roundtrip flight to Melbourne from San Francisco is deal in itself. Especially for Christmas time. After further research, I found that I can add a stopover in Auckland without bringing up the price. In some cases, the stopover will actually REDUCE the flight price.
This September through November, United, Northwest, and Delta are all offering discount one-stop flights to Vietnam for $595 roundtrip including all taxes and fees.
The cheapest flights in August leave on August 8th and August 9th. Flights in September and October tend to be the cheapest on Tuesdays and Wednesdays.
Flight have a quick layover in both Chicago and Madrid. Iberia is running multiple flights on each day, so you have some flexibility in terms of when you fly, and flight price should stay under $600 for a little while.
Flights to Europe aren’t the only ones dropping in price these days. Thanks to Singapore Airlines and China Airlines, there are a number of cheap flights to Asia as well. For about 50 dollars more than flights to Hong Kong, you can now fly to Bangkok for $682 roundtrip.