Transportation from O’Hare to Union Station | Train Vs Taxi

The CTA Blue Line is the cheapest reliable ORD-to-Union Station route: about $5 and 50-60 minutes including the walk.

Some links on this page are affiliate links. If you book through them, we may earn a small commission at no extra cost to you.

A bad airport transfer can turn a simple Chicago connection into a missed Amtrak train. For transportation from O’Hare to Union Station, the choice is usually between the Blue Line train, which avoids I-90 traffic, and a taxi or rideshare, which saves walking but can swing hard on price and time.

Most travelers should take the CTA Blue Line from O’Hare International Airport to Clinton station, then walk about two blocks north to Chicago Union Station. Pick a taxi or rideshare only if you have heavy luggage, late-night safety concerns, mobility needs, or a tight same-day rail connection.

After you have the basic route, compare live transport options for the airport-to-station transfer here:

The Fastest Low-Cost Route From O’Hare To Union Station

The CTA Blue Line is the strongest value route from O’Hare to Union Station because it runs through downtown, avoids expressway delays, and costs about $5 from the airport. The total trip usually lands near 50-60 minutes once you add the walk from Clinton station to the Union Station platforms.

The train portion from O’Hare to downtown is normally about 40-45 minutes. The final walk from Clinton Blue Line station to Union Station is short, but it matters with rolling bags: use Clinton Street, stay aware under the viaducts, and give yourself extra minutes if your Amtrak or Metra train departs from the far side of the station.

Simple rule: use the Blue Line when price and predictability matter; use a taxi when luggage, weather, or mobility matter more than the fare.

How Do You Ride The Blue Line To Union Station?

The Blue Line ride starts inside O’Hare’s airport transit area and ends at Clinton, the closest Blue Line stop to Union Station. CTA says the O’Hare station is in the lower-level concourse connected to Terminals 1, 2, and 3, with Terminal 5 linked by the airport train, and its official O’Hare airport train page lists 24-hour Blue Line service.

1. Follow airport signs for “CTA Trains” or “Trains to City.”
2. Enter at O’Hare station and board any Blue Line train toward Forest Park or UIC-Halsted.
3. Ride through downtown and get off at Clinton.
4. Exit to street level and walk north toward Jackson Boulevard and Canal Street.
5. Enter Chicago Union Station, then check the concourse screens for Amtrak or Metra track information.

Contactless bank cards, mobile wallets, Ventra cards, and Ventra tickets work at the fare gates. The airport fare is higher than a regular city train fare, so expect the O’Hare entry to cost about $5 unless you are using a valid pass.

O’Hare To Union Station Options Compared

O’Hare to Union Station options split into two real categories: train for price and reliability, or road transport for door-to-door ease. Road times can beat the train late at night, but the same drive can crawl during weekday rush hours.

The Metra option sounds tempting because it can reach Union Station, but it starts at O’Hare Transfer station near the Multi-Modal Facility rather than the airline terminal. For most arrivals, the extra airport transfer and limited commuter schedule make the Blue Line simpler.

When A Taxi Or Rideshare Makes More Sense

A taxi or rideshare makes sense when the final walk, weather, or luggage burden would make the Blue Line unpleasant. A road transfer also works better for groups of three or four because the fare covers the vehicle, not each rider.

Use an official taxi stand on the lower level outside baggage claim if you want a licensed cab. FlyChicago warns passengers not to accept rides from drivers approaching outside the cab stand or on the departure level, which is especially relevant after long flights when airport exits are confusing.

Rideshare pickups at O’Hare use designated app pickup zones rather than the taxi stand. Check the app after baggage claim because terminal rules and pickup poles matter; walking to the wrong level can erase the time a rideshare was supposed to save.

What To Avoid On This Transfer

The main mistakes on the O’Hare to Union Station transfer are cutting the timing too close and treating every road quote as stable. A 35-minute ride can become 75 minutes when traffic stacks up on the Kennedy Expressway.

• Do not plan a tight Amtrak connection. Leave a buffer for baggage claim, airport walking, train waits, and Union Station platform changes.
• Do not rent a car just for this transfer. Rental pickup, tolls, fuel, and downtown parking make no sense for a station-to-airport link.
• Do not assume the Blue Line exit is the station entrance. Clinton is close, but Union Station is a separate building with multiple concourses.
• Do not ignore accessibility. Travelers who cannot manage stairs or the Clinton walk should check elevator status or use a taxi.

The late-night version of this route needs more judgment. Blue Line trains run all night, but a tired traveler arriving after midnight may prefer a licensed taxi if the walk downtown feels uncomfortable.

Where To Stay Near Union Station After You Arrive

Union Station is a practical overnight base when an Amtrak arrival, early train, or downtown meeting is the reason for the trip. The most convenient hotel zones are the West Loop, the Loop near the river, and the blocks around Canal Street.

Staying close to Union Station also makes sense when your Chicago stop is short. The West Loop gives better dining access, while the Loop puts you closer to offices, theaters, and CTA lines for the next day.

Compare hotel locations around Union Station and downtown Chicago here:

Which Option Should You Pick?

The right O’Hare to Union Station choice depends on whether time, cost, or ease matters most after landing. The Blue Line is the default pick; a taxi or rideshare is the comfort pick; the Metra transfer is a niche choice for travelers who have checked the exact schedule.

For most visitors, the decision is simple: take the Blue Line from O’Hare to Clinton when you want the cheapest predictable transfer, then walk to Union Station. Pay for a taxi or rideshare when luggage, weather, accessibility, or group size makes the train less attractive.