Chicago to Baltimore MDW, ORD, RFD → BWI
Chicago Midway International Airport (MDW), O'Hare International Airport (ORD), Chicago Rockford International Airport (RFD) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
The cheapest return found recently is $364 with Frontier Airlines, 20 Oct – 22 Oct, found today. The cheapest one-way found recently is $129 with Allegiant Air, 16 Nov, found today.
Return
The cheapest return fare on each of 7 departure dates is usually $214 to $262.
Cheapest return found recently
$364
20 Oct – 22 Oct · Frontier Airlines
Chicago Midway International Airport (MDW) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
Leaves 6:21 a.m. · Return leaves 7:54 a.m. · 20 h 17 min of travel, both ways together
out 1 stop, back 1 stop
found today
Cheapest nonstop return
$215
12 Nov – 15 Nov · Frontier Airlines
O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
Leaves 6:00 a.m. · Return leaves 9:53 a.m. · 4 h 27 min of travel, both ways together
out nonstop, back nonstop
found 4 days ago
Found recently, and the cheapest we hold
$364 20 Oct – 22 Octfound todaySee prices for these dates
$212 14 Jan 2027 – 19 Jan 2027found 6 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $130 to $256.
At $364, the cheapest return found recently is above 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?
Compared with the cheapest return fare on each of 7 departure dates from 20 Oct to 15 Jan 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?
We hold no other 2-night return fares leaving within 3 days of 20 Oct to compare.
Every date we hold
10 fares on 7 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Oct – 22 Oct | $364 | Frontier Airlines | Chicago Midway International Airport (MDW) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out 1 stop, back 1 stop | found today | See prices for these dates |
| 12 Nov – 15 Nov | $215 | Frontier Airlines | O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 13 Nov – 15 Nov | $220 | Frontier Airlines | O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 14 Nov – 15 Nov | $244 | Frontier Airlines | Chicago Midway International Airport (MDW) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out 1 stop, back 2 stops | found 4 days ago | See prices for these dates |
| 26 Nov – 30 Nov | $213 | Frontier Airlines | O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 14 Jan 2027 – 19 Jan 2027 | $212 | Frontier Airlines | O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 15 Jan 2027 – 18 Jan 2027 | $280 | Frontier Airlines | Chicago Midway International Airport (MDW) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $212.
Airlines on the cheapest dates: Frontier Airlines.
One-way
The cheapest one-way fare on each of 6 departure dates is usually $99 to $113.
Cheapest one-way found recently
$129
16 Nov · Allegiant Air
Chicago Rockford International Airport (RFD) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
Leaves 7:03 p.m. · 20 h 11 min trip
2 stops
found today
Cheapest nonstop one-way
$113
19 Dec · Frontier Airlines
O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI)
Leaves 1:10 p.m. · 2 h 3 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$129 16 Novfound todayOpen this trip
$71 9 Decfound 3 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 $51 to $98.
At $129, the cheapest one-way found recently is above 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 one-way price?
Compared with the cheapest one-way fare on each of 6 departure dates from 16 Nov 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 one-way fares leaving within 3 days of 16 Nov to compare.
Every date we hold
11 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 16 Nov | $129 | Allegiant Air | Chicago Rockford International Airport (RFD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | 2 stops | found today | Open this trip |
| 24 Nov | $105 | Frontier Airlines | Chicago Midway International Airport (MDW) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | 1 stop | found 3 days ago | Open this trip |
| 25 Nov | $97 | Frontier Airlines | O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | nonstop | found 3 days ago | Open this trip |
| 9 Dec | $71 | Frontier Airlines | O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | 1 stop | found 3 days ago | Open this trip |
| 18 Dec | $113 | Frontier Airlines | O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | nonstop | found 5 days ago | Open this trip |
| 19 Dec | $113 | Frontier Airlines | O'Hare International Airport (ORD) → Baltimore/Wash International Thurgood Marshall Airport (BWI) | nonstop | found 2 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $71.
Airlines on the cheapest dates: Frontier Airlines, Allegiant Air.
Premium cabin fares from Chicago to Baltimore
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 Oct – 22 Oct 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 Chicago to Baltimore?
Return
Fares 14 to 29 days before departure were typically 44% 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 | $356 | $260 | +80% | 20 |
| 7–13 days | $281 | $281 | +42% | 7 |
| 14–29 days | $198 | $130 | Cheapest seen | 21 |
| 30–59 days | $213 | $144 | +8% | 23 |
| 180+ days | $384 | $308 | +94% | 19 |
One-way
Fares 30 to 59 days before departure were typically 42% lower than 7 to 13 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 |
|---|---|---|---|---|
| 7–13 days | $122 | $91 | +72% | 14 |
| 14–29 days | $105 | $88 | +48% | 17 |
| 30–59 days | $71 | $51 | Cheapest seen | 19 |
| 60–89 days | $106 | $99 | +49% | 14 |
| 90–179 days | $164 | $138 | +131% | 7 |
| 180+ days | $175 | $138 | +147% | 16 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Chicago → Philadelphia
145 km from Baltimore
$211
$153 less than flying to Baltimore
23 Nov – 30 Nov · ORD → PHL · out nonstop, back 1 stop
found yesterday
Chicago → Washington
57 km from Baltimore
$252
$112 less than flying to Baltimore
20 Oct – 22 Oct · ORD → DCA · out nonstop, back nonstop
found today
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Chicago → Washington
57 km from Baltimore
$78
$51 less than flying to Baltimore
12 Nov · RFD → IAD · stops unknown
found today
Chicago → Philadelphia
145 km from Baltimore
$154
$25 more than flying to Baltimore
21 Oct · MDW → PHL · 1 stop
found yesterday
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 Oct – 22 Oct. 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