Chicago (ORD) → San Francisco (SFO)
Chicago O'Hare International Airport to San Francisco International Airport · 1,600 nm (2,963 km) · about 4 h nonstop
Cheapest economy fares, checked daily · 38 days of history
Booking links are plain searches — none are affiliate links, and the site earns nothing if you book. Prices are the cheapest fares other travellers recently found, not live availability — always confirm the fare before you pay.
Economy
last checked 53m agoFrontier Airlines · 1 stop · 17h 04m · travel Nov 16 · sold via Mytrip.com
When it's cheapest to travel
Travel dates of the cheapest fare found at each of our 49 daily checks — where the low fares were, not every date.
| Oct 2026 | $57 | 32× |
| Nov 2026 | $93 | 10× |
| Dec 2026 | $113 | 4× |
| Feb 2027 | $79 | 3× |
| Moncheapest | $93 | 3× |
| Wed | $97 | 15× |
| Thu | $107 | 13× |
| Fri | $124 | 7× |
| Tue | $126 | 11× |
| Checked | Fare | Airline | Stops | Travel | Sold via | |
|---|---|---|---|---|---|---|
| 2026-10-24 | $93 | Frontier Airlines | 1 stop | Nov 16 | Mytrip.com | Book ↗ |
| 2026-10-23 | $95 | Frontier Airlines | 1 stop | Nov 17 | Авиасейлс | Book ↗ |
| 2026-10-21 | $96 | Frontier Airlines | 1 stop | Nov 17 | Trip.com | Book ↗ |
| 2026-10-21 | $96 | Frontier Airlines | 1 stop | Nov 17 | Trip.com | Book ↗ |
| 2026-10-20 | $107 | Frontier Airlines | 1 stop | Nov 17 | Trip.com | Book ↗ |
| 2026-10-19 | $113 | Frontier Airlines | 1 stop | Dec 2 | — | Book ↗ |
| 2026-10-19 | $113 | Frontier Airlines | 1 stop | Dec 2 | — | Book ↗ |
| 2026-10-18 | $113 | Frontier Airlines | 1 stop | Dec 2 | — | Book ↗ |
| 2026-10-17 | $126 | American Airlines | 1 stop | Nov 17 | — | Book ↗ |
| 2026-10-16 | $126 | American Airlines | 1 stop | Nov 17 | — | Book ↗ |
| 2026-10-15 | $107 | Frontier Airlines | 1 stop | Oct 29 | — | Book ↗ |
| 2026-10-14 | $79 | Frontier Airlines | 1 stop | Feb 26 | — | Book ↗ |
Airlines selling the cheapest fares
Which carrier had the lowest fare on each of our checks over the last 90 days.
- Frontier Airlines ×47
- American Airlines ×2
About this route
Chicago (ORD) to San Francisco (SFO) is one of the busiest air routes in its market (US domestic). It links Chicago O'Hare International Airport in United States with San Francisco International Airport in United States. The great-circle distance is about 1,600 nautical miles (1,842 statute miles), so expect roughly 4 hours in the air nonstop.
Every night we ask our fare provider for the cheapest one-way economy fare other travellers recently found on this route and record it, with the airline and the seller it was found with. A fare is flagged as a deal when it falls at least 30% below the route's 90-day typical price. Prices are a research starting point, not live availability — the booking links open the itinerary so you can confirm what's on sale right now.
Fares are approximate, from public sources, and can be stale — always verify before booking.