Cheapest€188.35
- American Airlines AA799618:123h 42m21:54Calgary YYCChicago ORD
Door to door 6h 52mCO2 570.7 kgChanges 0Fixed, no changes
Calgary to Chicago flight
Flights from Calgary to Chicago start at €219.03 and take 6h 30m at their fastest.
The Flights from Calgary to Chicago starts at €219.03 and takes 6h 30m door to door, run by 3 operators over 2,320 km, with around 16 departures a day. Fares bottom out about 60 days before departure.
- 6h 30mDoor to door
- 3h 20mMoving
- €219.03From
- 570.7 kgCO2
The cheapest and the fastest on September 28, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€274.49
- American Airlines AA248006:253h 20m09:45Calgary YYCChicago MDW
Door to door 6h 30mCO2 570.7 kgChanges 0Fixed, no changes
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest |
|---|---|---|
 American Airlines | €188.35 | 6h 30m |
| United Airlines | €198.38 | 6h 29m |
 WestJet | €195.43 | 6h 29m |
Chicago sits on the water, which usually settles which side of town you want to wake up on. Rooms are not ours to sell.
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When to book Calgary to Chicago
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €204.8790 days
- €154.7260 days
- €172.4245 days
- €188.9430 days
- €226.1121 days
- €246.7614 days
- €316.977 days
- €325.233 days
- €429.661 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €154.72.
- How much it moves
- The gap between the cheapest and most expensive lead time is 178 percent. The most expensive point is €429.66, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €269.18Sun
- €221.98Mon
- €219.03Tue
- €242.04Wed
- €246.76Thu
- €284.52Fri
- €285.70Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Calgary
Air
- YYC
Chicago
Air
- ORD
- MDW
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 75% of the services we sell on this corridor run through without a change. The remaining 25% involve one connection.
- How far it really runs
- The route covers 2,320 km against 2,252 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Edmonton, Minneapolis, Winnipeg, Denver. The gap between arriving and leaving is 65 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 15 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Calgary at 06:14 and the last at 18:34, across 16 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Calgary to Chicago
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Calgary to Chicago take?
The Flight from Calgary to Chicago takes 6h 30m door to door, of which 3h 20m is spent moving. The route runs 2,320 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Calgary to Chicago cost?
The Flight from Calgary to Chicago starts at €219.03 for one passenger, checked on September 28, 2026. A typical fare is €242.04. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Calgary to Chicago?
3 operators run the Flight from Calgary to Chicago: American Airlines, United Airlines, WestJet. Between them they file around 16 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Calgary to Chicago use?
The Flight from Calgary to Chicago leaves from Calgary YYC and arrives at Chicago MDW. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Calgary to Chicago?
Fares for the Flight from Calgary to Chicago bottom out around 60 days ahead, at €154.72. The gap between the cheapest and most expensive lead time across the window is 178 percent, measured on September 28, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Calgary to Chicago produce?
The Flight from Calgary to Chicago produces about 570.7 kg of CO2 per passenger over 2320 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Calgary to Chicago on September 10, 2026: 2320 km of route against 2252 km in a straight line, 16 services a day, 3 operators, a cheapest fare of €219.03, and 6h 30m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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