Cheapest one-way
£ 131.14
Frontier Airlines · 1 stop · 4 hr 10 min
One-way tickets on ORD–SFO recently started around £ 131.14.
Flights from Chicago to San Francisco
Compare Chicago to San Francisco flights on BookingTrolley, where the lowest tracked fare was £ 262.28. Check airlines, nonstop options and the cheapest months to fly.
Chicago to San Francisco flights overview
The lowest fare BookingTrolley recently tracked from Chicago to San Francisco was £ 262.28. Based on this route's seasonal pattern, fares average roughly £ 270.97 over the year. Nov tends to be the cheapest month to fly (around £ 225.94), while Jun is usually the most expensive at about £ 335.75 — a swing of roughly 49%.
Covering around 2,964 km between ORD and SFO, the quickest nonstop flight takes about 2 hr 38 min. BookingTrolley found 4 airlines currently compete on the ORD–SFO corridor, with Frontier Airlines posting one of the lowest fares at £ 262.28. 2 of them offer nonstop options, which save layover time but can cost more than connecting itineraries.
Frequently asked questions about flying from Chicago to San Francisco
According to BookingTrolley fare data on the Chicago to San Francisco route (ORD–SFO), round-trip tickets started at £ 262.28. Prices are shown in USD for comparison; United Kingdom travellers should confirm the final checkout currency on BookingTrolley.
A nonstop flight from Chicago to San Francisco takes about 2 hr 38 min in the air on the fastest outbound leg, based on BookingTrolley itinerary data from recent searches. Connecting flights add layover time and can extend total travel to a full day or more.
Recent BookingTrolley comparisons list Frontier Airlines (from £ 262.28), American Airlines (from £ 368.14), United Airlines (from £ 447.93) among the lowest fares on Chicago to San Francisco. Carrier availability changes with season and sales.
Mid-week departures and shoulder seasons usually cost less. According to BookingTrolley fare data on the Chicago to San Francisco route (ORD–SFO), round-trip tickets started at £ 262.28. BookingTrolley helps United Kingdom travellers spot dips before peak travel.
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Explore fares from Chicago, into San Francisco, and on related corridors with BookingTrolley.
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