Cheap flights from Chicago to Leon/Guanajuato from $376 MDW, ORD, RFD → BJX
Chicago Midway International Airport (MDW), O'Hare International Airport (ORD), Chicago Rockford International Airport (RFD) → Guanajuato International Airport (BJX)
The cheapest return found recently is $483 with Frontier Airlines, 5 Dec – 13 Dec, found 2 days ago. The cheapest one-way found recently is $376 with Frontier Airlines, 3 Jan 2027, found 5 days ago.
- Cheapest one-way found recently
- $376, found 5 days ago
- Cheapest return found recently
- $483, 5 Dec to 13 Dec
- Usual return price
- $486 to $682
Return
The cheapest return fare on each of 3 departure dates is usually $486 to $682.
Cheapest return found recently
$483
5 Dec – 13 Dec · Frontier Airlines
O'Hare International Airport (ORD) → Guanajuato International Airport (BJX)
Leaves 10:00 a.m. · Return leaves 6:07 a.m. · 40 h 40 min of travel, both ways together
out 2 stops, back 1 stop
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$483 5 Dec – 13 Decfound 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 39 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $342 to $676.
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 5 Dec to 19 Dec, 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 8-night return fares leaving within 3 days of 5 Dec to compare.
Every date we hold
10 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 5 Dec – 13 Dec | $483 | Frontier Airlines | O'Hare International Airport (ORD) → Guanajuato International Airport (BJX) | out 2 stops, back 1 stop | found 2 days ago | See prices for these dates |
| 6 Dec – 13 Dec | $489 | Frontier Airlines | O'Hare International Airport (ORD) → Guanajuato International Airport (BJX) | out 2 stops, back 1 stop | found 2 days ago | See prices for these dates |
| 19 Dec – 27 Dec | $875 | Frontier Airlines | O'Hare International Airport (ORD) → Guanajuato International Airport (BJX) | out 3 stops, back 1 stop | found 7 days ago | See prices for these dates |
Airlines on the cheapest dates: Frontier Airlines.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$376
3 Jan 2027 · Frontier Airlines
Chicago Midway International Airport (MDW) → Guanajuato International Airport (BJX)
Leaves 1:11 p.m. · 32 h 14 min trip
2 stops
found 5 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$376 3 Jan 2027found 5 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 14 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $225 to $376.
At $376, the cheapest one-way found recently is at the high end of that range.
14 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?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 3 Jan 2027 to compare.
Every date we hold
2 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 3 Jan 2027 | $376 | Frontier Airlines | Chicago Midway International Airport (MDW) → Guanajuato International Airport (BJX) | 2 stops | found 5 days ago | Open this trip |
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Chicago to Leon/Guanajuato
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 5 Dec – 13 Dec in another cabin: Premium economy · Business · First
Today's prices for 3 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Chicago to Leon/Guanajuato?
Return
Fares 90 to 179 days before departure were typically 28% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (39 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 | $483 | $365 | +39% | 12 |
| 30–59 days | $769 | $713 | +122% | 14 |
| 60–89 days | $517 | $357 | +49% | 14 |
| 90–179 days | $347 | $347 | Cheapest seen | 11 |
| 180+ days | $457 | $457 | +32% | 8 |
One-way
Not enough history yet: in 14 days of one-way prices, 24 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Chicago → Queretaro
147 km from Leon/Guanajuato
$512
$29 more than flying to Leon/Guanajuato
30 Dec – 9 Jan 2027 · ORD → QRO · out 1 stop, back 1 stop
found 2 days ago
Chicago → San Luis Potosi
136 km from Leon/Guanajuato
$392
$91 less than flying to Leon/Guanajuato
3 Dec – 10 Dec · MDW → SLP · out nonstop, back nonstop
found 4 days ago
Chicago → Aguascalientes
105 km from Leon/Guanajuato
$546
$63 more than flying to Leon/Guanajuato
29 Jun 2027 – 20 Jul 2027 · ORD → AGU · out 1 stop, 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.
Live price for these dates
The cheapest return found recently is for 5 Dec – 13 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Chicago to Leon/Guanajuato?
The cheapest return found recently is $483 with Frontier Airlines, 5 Dec to 13 Dec, found 2 days ago. The cheapest return fare on each of 3 departure dates is usually $486 to $682.
How much is a one-way flight from Chicago to Leon/Guanajuato?
The cheapest one-way found recently is $376 with Frontier Airlines, 3 Jan 2027, found 5 days ago.
How far ahead should I book a flight from Chicago to Leon/Guanajuato?
In 39 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 28% lower than 0 to 6 days before departure.
How long is the flight from Chicago to Leon/Guanajuato?
The cheapest one-way found recently, with Frontier Airlines on 3 Jan 2027, takes 32 h 14 min with 2 stops.
Which airlines have the cheapest flights from Chicago to Leon/Guanajuato?
Between 5 Dec and 19 Dec, Frontier Airlines has the cheapest return on all 3 departure dates we hold.
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