Chicago to Philadelphia MDW, ORD, RFD → PHL
Chicago Midway International Airport (MDW), O'Hare International Airport (ORD), Chicago Rockford International Airport (RFD) → Philadelphia International Airport (PHL)
The cheapest return found recently is $211 with Frontier Airlines, 23 Nov – 30 Nov, found yesterday. The cheapest one-way found recently is $154 with Frontier Airlines, 21 Oct, found yesterday.
Return
The cheapest return fare on each of 4 departure dates is usually $216 to $265.
Cheapest return found recently
$211
23 Nov – 30 Nov · Frontier Airlines
O'Hare International Airport (ORD) → Philadelphia International Airport (PHL)
Leaves 9:20 p.m. · Return leaves 4:39 p.m. · 11 h 14 min of travel, both ways together
out nonstop, back 1 stop
found yesterday
Cheapest nonstop return
$388
1 Nov – 1 Nov · Frontier Airlines
O'Hare International Airport (ORD) → Philadelphia International Airport (PHL)
Leaves 4:42 p.m. · Return leaves 9:09 p.m. · 4 h 50 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$211 23 Nov – 30 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 $148 to $280.
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 4 departure dates from 1 Nov 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 7-night return fares leaving within 3 days of 23 Nov to compare.
Every date we hold
10 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Nov – 1 Nov | $388 | Frontier Airlines | O'Hare International Airport (ORD) → Philadelphia International Airport (PHL) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 7 Nov – 9 Nov | $218 | Frontier Airlines | O'Hare International Airport (ORD) → Philadelphia International Airport (PHL) | out 1 stop, back nonstop | found 3 days ago | See prices for these dates |
| 23 Nov – 30 Nov | $211 | Frontier Airlines | O'Hare International Airport (ORD) → Philadelphia International Airport (PHL) | out nonstop, back 1 stop | found yesterday | See prices for these dates |
| 15 Jan 2027 – 18 Jan 2027 | $224 | Frontier Airlines | O'Hare International Airport (ORD) → Philadelphia International Airport (PHL) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $211.
Airlines on the cheapest dates: Frontier Airlines.
One-way
The cheapest one-way fare on each of 5 departure dates is usually $61 to $173.
Cheapest one-way found recently
$154
21 Oct · Frontier Airlines
Chicago Midway International Airport (MDW) → Philadelphia International Airport (PHL)
Leaves 6:21 a.m. · 10 h 54 min trip
1 stop
found yesterday
Cheapest nonstop one-way
$211
30 Apr 2027 · Southwest Airlines
Chicago Midway International Airport (MDW) → Philadelphia International Airport (PHL)
Leaves 9:10 a.m. · 1 h 45 min trip
nonstop
found today
Found recently, and the cheapest we hold
$154 21 Octfound yesterdayOpen this trip
$61 5 Novfound 4 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 $27 to $77.
At $154, 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 5 departure dates from 20 Oct to 30 Apr 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 21 Oct, and it is not cheaper.
Every date we hold
9 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Oct | $173 | Frontier Airlines | Chicago Midway International Airport (MDW) → Philadelphia International Airport (PHL) | 1 stop | found 3 days ago | Open this trip |
| 21 Oct | $154 | Frontier Airlines | Chicago Midway International Airport (MDW) → Philadelphia International Airport (PHL) | 1 stop | found yesterday | Open this trip |
| 5 Nov | $61 | Frontier Airlines | O'Hare International Airport (ORD) → Philadelphia International Airport (PHL) | nonstop | found 4 days ago | Open this trip |
| 6 Nov | $61 | Frontier Airlines | O'Hare International Airport (ORD) → Philadelphia International Airport (PHL) | nonstop | found 4 days ago | Open this trip |
| 30 Apr 2027 | $211 | Southwest Airlines | Chicago Midway International Airport (MDW) → Philadelphia International Airport (PHL) | nonstop | found today | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $61.
Airlines on the cheapest dates: Frontier Airlines, Southwest Airlines.
Premium cabin fares from Chicago to Philadelphia
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 23 Nov – 30 Nov in another cabin: Premium economy · Business · First
Today's prices for 21 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Chicago to Philadelphia?
Return
Fares 30 to 59 days before departure were typically 45% 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 | $304 | $283 | +81% | 8 |
| 14–29 days | $172 | $172 | +2% | 8 |
| 30–59 days | $168 | $148 | Cheapest seen | 8 |
| 60–89 days | $262 | $224 | +56% | 20 |
One-way
Fares 14 to 29 days before departure were typically 31% 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 | $94 | $91 | +45% | 14 |
| 7–13 days | $88 | $67 | +35% | 8 |
| 14–29 days | $65 | $27 | Cheapest seen | 23 |
| 30–59 days | $67 | $64 | +3% | 11 |
| 60–89 days | $116 | $116 | +79% | 8 |
| 90–179 days | $123 | $52 | +89% | 23 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Chicago → New York
130 km from Philadelphia
$223
$12 more than flying to Philadelphia
26 Nov – 1 Dec · ORD → EWR · out 1 stop, back 1 stop
found 17 hours ago
Chicago → Baltimore
145 km from Philadelphia
$364
$153 more than flying to Philadelphia
20 Oct – 22 Oct · MDW → BWI · out 1 stop, back 1 stop
found today
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Chicago → New York
130 km from Philadelphia
$102
$52 less than flying to Philadelphia
19 Nov · MDW → LGA · nonstop
found 3 hours ago
Chicago → Baltimore
145 km from Philadelphia
$129
$25 less than flying to Philadelphia
16 Nov · RFD → BWI · 2 stops
found today
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 23 Nov – 30 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