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Morning departure is around 20% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days
FAQs for booking flights from Lille to San Francisco
How does KAYAK find such low prices on flights from Lille to San Francisco?
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 Lille to San Francisco.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Lille to San Francisco?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Lille 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 Lille to San Francisco?
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 San Francisco with an airline and back to Lille with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Lille to San Francisco?
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 San Francisco from Lille up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.
Safety measures for airlines flying from Lille to San Francisco
Airlines flying from Lille to San Francisco have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.
Daily cleaning, installation of cabin HEPA filters on flights from Lille to San Francisco
Masks required on board, masks provided on flights from Lille to San Francisco
Social distancing seating
Middle seats unavailable to book on flights from Lille to San Francisco
Testing for antibodies, testing for symptoms for flights from Lille to San Francisco