Las Vegas to Chicago LAS → ORD, RFD
McCarran International Airport (LAS) → O'Hare International Airport (ORD), Chicago Rockford International Airport (RFD)
The cheapest return found recently is $138 with Allegiant Air, 19 Nov – 22 Nov, found 3 days ago. The cheapest one-way found recently is $126 with Frontier Airlines, 16 Nov, found yesterday.
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$138
19 Nov – 22 Nov · Allegiant Air
McCarran International Airport (LAS) → Chicago Rockford International Airport (RFD)
Leaves 6:35 a.m. · Return leaves 12:37 p.m. · 6 h 58 min of travel, both ways together
out nonstop, back nonstop
found 3 days ago
Cheapest nonstop return
$138
19 Nov – 22 Nov · Allegiant Air
McCarran International Airport (LAS) → Chicago Rockford International Airport (RFD)
Leaves 6:35 a.m. · Return leaves 12:37 p.m. · 6 h 58 min of travel, both ways together
out nonstop, back nonstop
found 3 days ago
Found recently, and the cheapest we hold
$138 19 Nov – 22 Novfound 3 days agoSee 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 $138 to $222.
At $138, the cheapest return found recently is at the low end of that range.
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?
Not enough comparable prices yet: we hold return fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 3-night return fares leaving within 3 days of 19 Nov to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 19 Nov – 22 Nov | $138 | Allegiant Air | McCarran International Airport (LAS) → Chicago Rockford International Airport (RFD) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
Airlines on the cheapest dates: Allegiant Air.
One-way
The cheapest one-way fare on each of 8 departure dates is usually $131 to $161.
Cheapest one-way found recently
$126
16 Nov · Frontier Airlines
McCarran International Airport (LAS) → O'Hare International Airport (ORD)
Leaves 11:29 p.m. · 3 h 44 min trip
nonstop
found yesterday
Cheapest nonstop one-way
$126
16 Nov · Frontier Airlines
McCarran International Airport (LAS) → O'Hare International Airport (ORD)
Leaves 11:29 p.m. · 3 h 44 min trip
nonstop
found yesterday
Found recently, and the cheapest we hold
$126 16 Novfound yesterdayOpen this trip
$112 23 Novfound 5 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $67 to $141.
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 one-way price?
Compared with the cheapest one-way fare on each of 8 departure dates from 16 Nov to 16 Jun 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 16 Nov, and it is not cheaper.
Every date we hold
8 fares on 8 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 16 Nov | $126 | Frontier Airlines | McCarran International Airport (LAS) → O'Hare International Airport (ORD) | nonstop | found yesterday | Open this trip |
| 19 Nov | $133 | Allegiant Air | McCarran International Airport (LAS) → Chicago Rockford International Airport (RFD) | stops unknown | found 3 days ago | Open this trip |
| 23 Nov | $112 | Frontier Airlines | McCarran International Airport (LAS) → O'Hare International Airport (ORD) | nonstop | found 5 days ago | Open this trip |
| 28 Nov | $186 | Frontier Airlines | McCarran International Airport (LAS) → O'Hare International Airport (ORD) | nonstop | found 3 days ago | Open this trip |
| 9 Mar 2027 | $153 | Alaska Airlines | McCarran International Airport (LAS) → O'Hare International Airport (ORD) | 1 stop | found 2 days ago | Open this trip |
| 13 Apr 2027 | $180 | Alaska Airlines | McCarran International Airport (LAS) → O'Hare International Airport (ORD) | 1 stop | found 3 days ago | Open this trip |
| 2 Jun 2027 | $155 | Alaska Airlines | McCarran International Airport (LAS) → O'Hare International Airport (ORD) | 1 stop | found 4 days ago | Open this trip |
| 16 Jun 2027 | $154 | Alaska Airlines | McCarran International Airport (LAS) → O'Hare International Airport (ORD) | 1 stop | found 4 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $112.
Airlines on the cheapest dates: Alaska Airlines, Frontier Airlines, Allegiant Air.
Premium cabin fares from Las Vegas 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 19 Nov – 22 Nov in another cabin: Premium economy · Business · First
Today's prices for 16 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Las Vegas to Chicago?
Return
Fares 30 to 59 days before departure were typically 42% 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 | $269 | $151 | +71% | 18 |
| 7–13 days | $265 | $245 | +69% | 11 |
| 14–29 days | $277 | $230 | +76% | 11 |
| 30–59 days | $157 | $138 | Cheapest seen | 22 |
One-way
Fares 7 to 13 days before departure were typically 8% lower than 0 to 6 days before departure.
From the cheapest one-way 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 | $126 | $126 | +9% | 7 |
| 7–13 days | $116 | $103 | Cheapest seen | 9 |
| 14–29 days | $121 | $103 | +4% | 8 |
| 30–59 days | $123 | $67 | +6% | 18 |
| 60–89 days | $123 | $97 | +6% | 8 |
| 90–179 days | $153 | $130 | +32% | 22 |
| 180+ days | $144 | $144 | +24% | 12 |
Live price for these dates
The cheapest return found recently is for 19 Nov – 22 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