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Cheap flights from Chicago to San Francisco

One-way from $57, found by travellers in the last 7 days. Aviasales checks the live price.

Departure
Return
Prices for nearby dates
Mon, Oct 26Any priceTue, Oct 27Any priceWed, Oct 28Any priceThu, Oct 29$57Fri, Oct 30$112Sat, Oct 31Any priceSun, Nov 1Any priceMon, Nov 2Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Baggage and fare rules are shown on Aviasales, where the price is checked live.

Cheapest
$57
Frontier Airlines, flight F9 1483Found 4 days ago, 1 adult
Check price on Aviasales
6:30amChicagoThu, Oct 29
Travel time 5h 47m, 1 stopORDSFO
10:17amSan FranciscoThu, Oct 29
$112
Frontier Airlines, flight F9 1483Found 4 days ago, 1 adult
Check price on Aviasales
6:30amChicagoFri, Oct 30
Travel time 5h 47m, 1 stopORDSFO
10:17amSan FranciscoFri, Oct 30
$126
Southwest Airlines, flight WN 2953Found 2 days ago, 1 adult
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9:15pmChicagoMon, Nov 16
Travel time 6h 9m, 1 stopMDWSFO
1:24amSan FranciscoTue, Nov 17
$129
Frontier Airlines, flight F9 2292Found 5 days ago, 1 adult
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6:22amChicagoThu, Oct 22
Travel time 7h 41m, 1 stopMDWSFO
12:03pmSan FranciscoThu, Oct 22
$138
United Airlines, flight UA 1333Found 4 days ago, 1 adult
Check price on Aviasales
5:55amChicagoSun, Nov 8
Travel time 6h 5m, 1 stopORDSFO
10:00amSan FranciscoSun, Nov 8

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in United StatesTravel eSIM from $4, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in San Francisco, booked ahead at a fixed price.
    See options
  • Things to do in San FranciscoPopular tours from $39 per person.
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  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
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Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu1234$2295–6$2077$1948$2069–10$18511–12$21113–14$20315–16–17–18–19–20–21–22$12923$14224–25–26–27–28–29$5730$11231–

November 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8$1389–10–11–12–13–14–15–16$12617–18–19–20–21–22–23–24–25–26–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–345678910111213141516171819202122232425262728293031
$129 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Oct 29, $57.

Lowest fares by month

In the fares found this week, October has the lowest: from $57 one-way, against $234 in January 2027. Pick a month to see its cheapest date.

$0$100$200$300$57OctNovDecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$57Thu, Oct 291 stop
November$126Mon, Nov 161 stop
December$143Tue, Dec 11 stop
January 2027$234Fri, Jan 11 stop
February 2027—
March 2027$156Mon, Mar 11 stop
April 2027—
May 2027—
June 2027$169Wed, Jun 91 stop
July 2027$185Thu, Jul 11 stop
August 2027$177Mon, Aug 91 stop
September 2027—

Questions travellers ask

What is the cheapest month to fly from Chicago to San Francisco?

In the fares found this week, October has the lowest: from $57 one-way, against $234 in January 2027.

Are there direct flights from Chicago to San Francisco?

Yes. Recent fares include nonstop flights with Southwest Airlines.

How long is the flight from Chicago to San Francisco?

A nonstop flight takes about 4h 40m. The distance is 1,842 mi.

Which day of the week is cheapest to fly?

In the fares we have, Thursday departures are the cheapest, with a typical lowest fare of $129. Wednesday is the priciest at about $194.

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