Cheap Flights from Quito to San Francisco from $335

Frequently Asked Questions

• What are the cheapest flights from Quito to San Francisco (UIO-SFO)?

  Based on Trip.com data, avianca offers one-way fares as low as $336 on Cheapest nonstop routes (e.g. UIO to SFO on Sun, Oct 25), while avianca offers Cheapest nonstop round-trips from $599 departing on Sun, Oct 25 and returning on Thu, Oct 29.

• Which airlines offer flights from Quito to San Francisco?

  At the moment, several airlines serve connecting flights from Quito to San Francisco, including: Copa Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from Quito to San Francisco?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Quito to San Francisco is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Quito to San Francisco?

  To find best deals on flights from Quito to San Francisco, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Oct 25, with one-way flights priced at just $336.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is avianca.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for San Francisco travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Quito (UIO) to San Francisco (SFO) the cheapest?

  The cheapest months to fly from Quito to San Francisco is July, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Quito to San Francisco on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Quito to San Francisco on October 28, 2026 with avianca, with prices starting at $361.

• Which airports can I fly into San Francisco from Quito?

  You can arrive at any of the following airports in San Francisco: San Francisco International Airport (SFO). Flights from Mariscal Sucre Quito International Airport to San Francisco International Airport (UIO-SFO) are by far the most popular option for this route.

• Is there any time difference between Quito and San Francisco?

  The time difference between San Francisco and Quito is 3h.

• How do I change or cancel my ticket from Quito to San Francisco?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Quito to San Francisco?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Quito to San Francisco is $550. Fares vary by travel date, airline and availability.

• How do I book flights from Quito to San Francisco on Trip.com?

  Enter Quito and San Francisco, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.