St. Louis to Chicago: what the flight costs
In the last 60 days we checked this route 7 times. The typical return was £528 per person and the lowest £377, taxes and fees included.
| Per person | |
|---|---|
| Lowest seen | £377 |
| Typical (median) | £528 |
| Price checks, 60 days | 7 |
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Trips we picked on this route
Just found · from St. LouisLowest in 30 daysWorth it, if
Chicago
16 – 18 Oct 2026 · 2 nights
- £151 per person below the typical fare on this route
- Lowest in 30 days on this route
- Club Quarters Hotel Central Loop, Chicago, rated 8.2 by 5,339 guests
£1,427 for two · 2 nights · flights, hotel, taxes & fees
Flights £754 + hotel £673, taxes in · a checked bag each adds about £181
Frontier · with a stop · 6h 38m
The catch: Not nonstop: a stop on the way, 6h 38m in all.
Worth it if you want to walk, eat and see things; skip it if you want to switch off.
Every fare we found in the last 30 days
| Checked | Trip dates | Per person | Airline | Stops | Duration | Source |
|---|---|---|---|---|---|---|
| 14 Oct 2026 | 16 – 18 Oct 2026 | £377 | Frontier | with a stop | 6h 38m | Google Flights |
| 14 Oct 2026 | 16 – 18 Oct 2026 | £517 | UA | nonstop | 1h 29m | Kiwi.com |
| 13 Oct 2026 | 16 – 18 Oct 2026 | £541 | UA | nonstop | 1h 29m | Kiwi.com |
| 12 Oct 2026 | 23 – 25 Oct 2026 | £540 | UA | nonstop | 1h 29m | Kiwi.com |
| 12 Oct 2026 | 23 – 25 Oct 2026 | £541 | UA | nonstop | 1h 29m | Kiwi.com |
| 12 Oct 2026 | 16 – 18 Oct 2026 | £528 | UA | nonstop | 1h 29m | Kiwi.com |
| 12 Oct 2026 | 23 – 25 Oct 2026 | £497 | UA | nonstop | 1h 29m | Kiwi.com |
About Chicago
Chicago offers skyscraper architecture, a lakefront of beaches and parks, blues clubs, deep-dish pizza and museums of world rank.
Chicago from every city: when to go, where to stay, what to do
Questions about St. Louis to Chicago
What does a return from St. Louis to Chicago usually cost?
Over the last 60 days the typical price we found was £528 per person, taxes and fees included, across 7 checks; the lowest was £377.
When is the best time to fly from St. Louis to Chicago?
Chicago is at its best in May, June, July, August, September and October. Avoid December, January, February, March: Bitter cold and wind off the lake
Do I need a passport to fly from St. Louis to Chicago?
No passport needed for travellers from the United States: a government photo ID is enough for Chicago.
Prices converted from US dollars at the rate of 15 Oct 2026.