Blue Line train to the LooporBlue and Orange Line trains to Midway Airport?

The short answer

These do not go to the same place, so price is not the comparison. The Blue Line train to the Loop reaches The Loop at Clark/Lake, downtown Chicago; the Blue and Orange Line trains to Midway Airport does not. Midway, Chicago's other airport on the South Side, not the city centre: for the Loop, get off the Blue Line at Clark/Lake.

The Blue Line train to the Loop is quicker: 40 min against 1 h 07. The Blue and Orange Line trains to Midway Airport varies between 67 and 68 minutes.

Blue Line train to the Loop: Runs all night. Blue and Orange Line trains to Midway Airport: 03:10–00:45.

Priced against each other

Whole-party totals · adult fares

What each costs for the whole party, in USD. The cheaper of the two is marked on every row.
Travelers	Blue Line train to the Loop	Blue and Orange Line trains to Midway Airport	Difference
1	US$5	US$5	same
2	US$10	US$10	same
3	US$15	US$15	same
4	US$20	US$20	same
5	US$25	US$25	same
6	US$30	US$30	same
7	US$35	US$35	same
8	US$40	US$40	same

Side by side

Where each one leaves you

Blue · CTA (Chicago Transit Authority)Blue Line train to the Loop

From: CTA O'Hare station, below the main parking garage, by walkway from Terminals 1, 2 and 3
To: Clark/Lake station in the Loop, where the Blue Line meets the Brown, Green, Orange, Pink and Purple Lines
Runs: All night
Journey: 40 min

Every 7 to 10 minutes by day and every 15 to 20 overnight, from about midnight to 04:00.

Arriving at Terminal 5, ride the free ATS train to Terminal 2 or 3 first.

Blue Line train to the Loop: price for every party size

See CTA fares

BlueOrange · CTA (Chicago Transit Authority)Blue and Orange Line trains to Midway Airport

From: CTA O'Hare station, below the main parking garage, by walkway from Terminals 1, 2 and 3
To: Midway station, joined to the Midway Airport terminal by an enclosed walkway
Runs: 03:10–00:45
Journey: 67–68 min

Change at Clark/Lake, upstairs to the elevated platform, for an Orange Line train to Midway.

The airport asks you to allow up to two hours between O'Hare and Midway.

Blue and Orange Line trains to Midway Airport: price for every party size

See CTA fares

This compares two of 5 options. See all of them ranked for your party size

Blue Line train to the LooporBlue and Orange Line trains to Midway Airport?

Priced against each other

Side by side

The other comparisons at O'Hare International Airport