Austin to Chicago AUS → MDW, ORD
Austin-Bergstrom International Airport (AUS) → Chicago Midway International Airport (MDW), O'Hare International Airport (ORD)
The cheapest return found recently is $291 with Frontier Airlines, 20 Nov – 24 Nov, found yesterday. The cheapest one-way found recently is $133 with Frontier Airlines, 28 Oct, found yesterday.
Return
The cheapest return fare on each of 3 departure dates is usually $305 to $319.
Cheapest return found recently
$291
20 Nov – 24 Nov · Frontier Airlines
Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD)
Leaves 10:59 p.m. · Return leaves 5:15 a.m. · 47 h of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$291 20 Nov – 24 Novfound yesterdaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $220 to $348.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 3 departure dates from 20 Nov to 26 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 4-night return fares leaving within 3 days of 20 Nov to compare.
Every date we hold
4 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Nov – 24 Nov | $291 | Frontier Airlines | Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 25 Nov – 29 Nov | $318 | Southwest Airlines | Austin-Bergstrom International Airport (AUS) → Chicago Midway International Airport (MDW) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 26 Nov – 29 Nov | $319 | Southwest Airlines | Austin-Bergstrom International Airport (AUS) → Chicago Midway International Airport (MDW) | out nonstop, back 1 stop | found 6 days ago | See prices for these dates |
Airlines on the cheapest dates: Southwest Airlines, Frontier Airlines.
One-way
The cheapest one-way fare on each of 6 departure dates is usually $117 to $173.
Cheapest one-way found recently
$133
28 Oct · Frontier Airlines
Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD)
Leaves 12:24 p.m. · 5 h 52 min trip
stops unknown
found yesterday
Cheapest nonstop one-way
$197
25 Mar 2027 · United Airlines
Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD)
Leaves 6:40 a.m. · 2 h 52 min trip
nonstop
found 3 days ago
Found recently, and the cheapest we hold
$133 28 Octfound yesterdayOpen this trip
$105 12 Decfound 2 days agoOpen this trip
What have prices looked like?
Over 24 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $77 to $172.
24 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 6 departure dates from 28 Oct to 25 Mar 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 28 Oct, and it is not cheaper.
Every date we hold
6 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 28 Oct | $133 | Frontier Airlines | Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD) | stops unknown | found yesterday | Open this trip |
| 29 Oct | $174 | Frontier Airlines | Austin-Bergstrom International Airport (AUS) → Chicago Midway International Airport (MDW) | 1 stop | found 5 days ago | Open this trip |
| 5 Nov | $168 | Frontier Airlines | Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD) | 1 stop | found yesterday | Open this trip |
| 10 Dec | $112 | Frontier Airlines | Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD) | 1 stop | found 5 days ago | Open this trip |
| 12 Dec | $105 | Frontier Airlines | Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD) | 1 stop | found 2 days ago | Open this trip |
| 25 Mar 2027 | $197 | United Airlines | Austin-Bergstrom International Airport (AUS) → O'Hare International Airport (ORD) | nonstop | found 3 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $105.
Airlines on the cheapest dates: Frontier Airlines, United Airlines.
Premium cabin fares from Austin to Chicago
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 20 Nov – 24 Nov in another cabin: Premium economy · Business · First
Today's prices for 28 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Austin to Chicago?
Return
Fares 14 to 29 days before departure were typically 32% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $324 | $282 | +47% | 11 |
| 7–13 days | $348 | $282 | +58% | 20 |
| 14–29 days | $220 | $220 | Cheapest seen | 7 |
| 30–59 days | $255 | $220 | +16% | 24 |
One-way
Fares 14 to 29 days before departure were typically 55% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (24 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $172 | $129 | +123% | 17 |
| 7–13 days | $172 | $77 | +123% | 12 |
| 14–29 days | $77 | $77 | Cheapest seen | 9 |
| 30–59 days | $112 | $105 | +46% | 16 |
| 60–89 days | $121 | $121 | +57% | 7 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
San Antonio → Chicago
118 km from Austin
$406
$115 more than flying from Austin
26 Nov – 29 Nov · SAT → ORD · out nonstop, back 1 stop
found 6 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
San Antonio → Chicago
118 km from Austin
$216
$83 more than flying from Austin
30 Oct · SAT → ORD · 1 stop
found 4 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 20 Nov – 24 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work